/usr/akumar/alt/devel/gs/ 755 0 0 0 11242411647 143105ustar00akumarakumar/usr/akumar/alt/devel/gs/ijs/ 755 0 0 0 11242412040 150615ustar00akumarakumar/usr/akumar/alt/devel/gs/ijs/.cvsignore 644 0 0 135 11241503077 17052ustar00akumarakumarconfig.log config.status configure Makefile ijs-config ijs_client_example ijs_server_example /usr/akumar/alt/devel/gs/ijs/Makefile.in 644 0 0 4570 11241503077 17146ustar00akumarakumar# Unix CC=@CC@ CFLAGS=-g -Wall -ansi -pedantic -Wmissing-prototypes LDLIBS= OBJ=.o # todo: this needs to be .dylib on OS X - write a test SHARED_OBJ=.so SHARED_OBJ=.dylib EXE= FE=-o IJS_EXEC_SERVER=ijs_exec_unix$(OBJ) RM=rm -f AR=ar ARFLAGS=qc RANLIB=@RANLIB@ # Installation paths prefix=@prefix@ exec_prefix=@exec_prefix@ bindir=@bindir@ libdir=@libdir@ includedir=@includedir@ pkgincludedir=$(includedir)/ijs INSTALL = @INSTALL@ IJS_COMMON_OBJ=ijs$(OBJ) all: libijs.a libijs$(SHARED_OBJ) ijs_client_example$(EXE) ijs_server_example$(EXE) LIB_OBJS=ijs$(OBJ) ijs_client$(OBJ) ijs_server$(OBJ) $(IJS_EXEC_SERVER) libijs.a: $(LIB_OBJS) rm -f $@ $(AR) $(ARFLAGS) $@ $^ $(RANLIB) $@ # Note: this builds both the server and client into a single library. Logically, it # makes sense to separate them, but they're small enough to make this probably # not worthwhile. libijs$(SHARED_OBJ): $(LIB_OBJS) #$(CC) -shared $^ -o $@ $(CC) -dynamic $^ -o $@ ijs_client_example$(EXE): ijs_client_example$(OBJ) ijs_client$(OBJ) $(IJS_COMMON_OBJ) $(IJS_EXEC_SERVER) $(CC) $(CFLAGS) $(FE)ijs_client_example$(EXE) ijs_client_example$(OBJ) ijs_client$(OBJ) $(IJS_COMMON_OBJ) $(IJS_EXEC_SERVER) $(LDLIBS) ijs_server_example$(EXE): ijs_server_example$(OBJ) ijs_server$(OBJ) $(IJS_COMMON_OBJ) $(CC) $(CFLAGS) $(FE)ijs_server_example$(EXE) ijs_server_example$(OBJ) ijs_server$(OBJ) $(IJS_COMMON_OBJ) $(LDLIBS) common_clean: $(RM) *$(OBJ) ijs_client_example$(EXE) ijs_server_example$(EXE) clean: common_clean $(RM) *~ gmon.out core ijs_spec.log ijs_spec.tex ijs_spec.aux libijs.a libijs$(SHARED_OBJ) config.cache config.log config.status ijs-config install: all $(INSTALL) ijs_client_example$(EXE) $(bindir)/ijs_client_example$(EXE) $(INSTALL) ijs-config $(bindir)/ijs-config $(INSTALL) libijs.a $(libdir)/libijs.a $(INSTALL) libijs$(SHARED_OBJ) $(libdir)/libijs$(SHARED_OBJ) mkdir $(pkgincludedir) $(INSTALL) ijs.h $(pkgincludedir)/ijs.h $(INSTALL) ijs_client.h $(pkgincludedir)/ijs_client.h $(INSTALL) ijs_server.h $(pkgincludedir)/ijs_server.h uninstall: $(RM) $(bindir)/ijs_client_example$(EXE) $(bindir)/ijs-config $(libdir)/libijs.a $(libdir)/libijs$(SHARED_OBJ) $(RM) $(pkgincludedir)/ijs_client.h $(pkgincludedir)/ijs_server.h $(pkgincludedir)/ijs.h ijs_spec.ps: ijs_spec.sgml # We don't use db2pdf because it can't handle embedded .eps db2ps ijs_spec.sgml ijs_spec.pdf: ijs_spec.ps ps2pdf ijs_spec.ps /usr/akumar/alt/devel/gs/ijs/README 644 0 0 15060 11241503077 15775ustar00akumarakumarIJS 0.33 22 Jan 2002 News as of 0.33: The buffer size has been increased to 4096. It should probably be dynamically allocated, though. Minor clarification in BitsPerSample language in spec (thanks to Jackie Chang for pointing out the ambiguity). News as of 0.32: The xres and yres fields of ph are now floats. The example server now supports margins. A few small bugs have been cleaned up as well. News as of 0.31: A number of small cleanups in the code. The example client and server support more querying and enumeration, but not yet margins. There is a new API for the client to query the negotiated version number. The ijs_exec_unix module now sets the SIGPIPE signal to ignore. This way, if the client abnormally exits, it allows the error to propagate through the read() or write() call to the pipe, rather than immediately killing the client. News as of 0.30: It now builds as a library. Also, there is basic autoconf support (but not automake or libtool). It's probably best to link the static library for now. I'm open to suggestions - I'm open to drinking the entire pitcher of auto* Kool-Aid, but we probably won't use libtool in Ghostscript builds. This release fixes a number of bugs and improves portability. In particular, server errors should now bubble up to the client, and the termination logic has been patched according to David Suffield, who discovered a race condition there. Thanks to David and Russell for patches. The spec is now in a reasonable draft. See ijs_spec.sgml and ijs_spec.pdf. Comments and suggestions are welcome. The example client and server have _not_ yet been updated to use the newer features of the ijs spec. Patches are welcome. News as of 0.29: I've added a number of things discussed on the mailing list, including listing and enumerating parameters, as well as a job abstraction. The client interface has changed a bit - job id's are now present in most callbacks, colorspace is now presented only as a string, and there are quite a few more callbacks. I've started a skeleton of a protocol spec in DocBook. Note, there's a potential race condition in EXIT noted by David Suffield. The fix hasn't yet been merged in from his work. News as of 0.2: This version integrates set_param and get_param, and has moved the "page header" processing to use set_param. Also, there are both Windows (MS VC++) and Unix makefiles. Use "make -f unix.mak" to build on Unix. Thanks to Russell Lang for Windows portability work. Introduction This is an early snapshot of IJS. I expect the protocols and API's to evolve somewhat, and things like error handling are still far from perfect. However, I'm pretty happy that this is going in the right direction. I am doing this prerelease so that authors of various packages related to raster-based printing can start thinking about how to integrate it. Ideally, all producers of printable raster data should be able to function as an ijs client, and all consumers should be able to function as an ijs server. This release is about as functional as piping pnm's, which is primitive, but the way a lot of drivers still work. What is IJS? IJS is, first and foremost, a protocol for transmission of raster page images. This snapshot provides a reference implementation of the protocol, the design of which is still in flux. When the protocol specification is published, it will be authoritative. Applications should feel free to link against the library provided in this package, adapt that code for their own needs, or roll a completely new implementation. The protocol is a fairly traditional client-server design. In general, the client sends one or more page images to the server, along with various metadata. Communication is through simple "commands", which are essentially size-prefixed packets. The client sends a command to the server, then waits for a response command, either ACK or NAK. The server "speaks" IJS through stdin and stdout. One consequence of this design decision is that the server can be invoked remotely, for example through ssh. It's not clear yet how useful this will be, but at least people can experiment with it. Currently, all data goes through the stdin and stdout pipes. It is envisioned that a shared memory transport will also be provided, transparently. IJS will fall back to pipes if shared memory is not available for any reason. I'm not yet convinced that the performance win for shared memory is significant. I would like to benchmark domain sockets as well, as they are likely to provide better performance than pipes, and are also highly desirable for cases where the server runs as a persistent daemon. This tarball provides an "IJS library" in the form of ijs, ijs_client, and ijs_server. It also provides an example client (capable of reading pnmraw files) and an example server (capable of generating PostScript). I imagine that the example programs will be useful for development and testing, but that end-users probably won't find a need for them. To try IJS, compile and run "./ijs_client_example -s ./ijs_server_example -pOutputFile=/tmp/tmp.ps foo.ppm". This will invoke ./ijs_server_example, which will in turn generate a /tmp/tmp.ps file. The ijs_client_example takes a -p command line argument for setting parameters, and a -r argument for setting resolution. Here is a typical command line: ./ijs_client_example -s ./ijs_server_example -pOutputFile=/tmp/tmp.ps \ -r300 in.ppm The syntax of -p is a sequence of key=value pairs, separated by commas. A backslash in the value escapes the next character (allowing embedded commas in the value). Thus, '-pfoo=bar, quux=a\,b' sets the key "foo" to the value "bar, and the key "quux" to the value "a,b". FAQ What does IJS stand for? It stands for "raster printer driver architecture." It's spelled U+30EA U+13DA, to avoid confusion, and to save space in UTF-16 encodings. Actually, the name derives from HPIJS, which presumably stands for HP InkJet Server. The name pays homage to HPIJS for the inspiration, while communicating that it's not specific to HP printers. Licensing MIT. I want everybody to be able to use this. More stuff to write: Actual specification for the protocol (in draft). Client spawns server, invoker invokes client and server, and persistent server daemon modes. Negotation of extensions (goal is interoperability between versions). (Actually, the PING/PONG protocol as it exists negotiates version numbers). TODO: Shared memory transport. Should have an alternate mode in which the client is passed the pipe information, rather than having to spawn the server. wait() cleanup of invoked server. Package library up as libijs.a, .so (partially done) 644 0 0 4570 11241503077 17146ustar00akumarakumar/usr/akumar/alt/devel/gs/ijs/common.mak 644 0 0 1140 11241503077 17051ustar00akumarakumarIJS_COMMON_OBJ=ijs$(OBJ) all: ijs_client_example$(EXE) ijs_server_example$(EXE) ijs_client_example$(EXE): ijs_client_example$(OBJ) ijs_client$(OBJ) $(IJS_COMMON_OBJ) $(IJS_EXEC_SERVER) $(CC) $(CFLAGS) $(FE)ijs_client_example$(EXE) ijs_client_example$(OBJ) ijs_client$(OBJ) $(IJS_COMMON_OBJ) $(IJS_EXEC_SERVER) $(LDLIBS) ijs_server_example$(EXE): ijs_server_example$(OBJ) ijs_server$(OBJ) $(IJS_COMMON_OBJ) $(CC) $(CFLAGS) $(FE)ijs_server_example$(EXE) ijs_server_example$(OBJ) ijs_server$(OBJ) $(IJS_COMMON_OBJ) $(LDLIBS) common_clean: $(RM) *$(OBJ) ijs_client_example$(EXE) ijs_server_example$(EXE) t_example$(OBJ) ijs_client$(OBJ) $(IJS_COMMON_OBJ) $(IJS_EXEC_SERVER) $(LDLIBS) ijs_server_example$(EXE): ijs_server_example$(OBJ) ijs_server$(OBJ) $(IJS_COMMON_OBJ) $(CC) $(CFLAGS) $(FE)ijs_server_example$(EXE) ijs_server_example$(OBJ) ijs_server$(OBJ) $(IJS_COMMON_OBJ) $(LDLIBS) common_clean: $(RM) *$(OBJ) ijs_client_example$(EXE) ijs_server_example$(EXE) clean: common_clean $(RM) *~ gmon.out core ijs_spe/usr/akumar/alt/devel/gs/ijs/configure.in 644 0 0 303 11241503077 17360ustar00akumarakumarAC_INIT(ijs.c) IJS_VERSION=0.33 AC_SUBST(IJS_VERSION) AC_PROG_CC AC_PROG_RANLIB AC_PROG_INSTALL AC_OUTPUT(Makefile ijs-config, [case "$CONFIG_FILES" in *ijs-config*) chmod +x ijs-config;; esac]) /usr/akumar/alt/devel/gs/ijs/ijs-config.in 644 0 0 1670 11241503077 17457ustar00akumarakumar#!/bin/sh prefix=@prefix@ exec_prefix=@exec_prefix@ exec_prefix_set=no usage="\ Usage: ijs-config [--prefix[=DIR]] [--exec-prefix[=DIR]] [--version] [--libs] [--cflags]" if test $# -eq 0; then echo "${usage}" 1>&2 exit 1 fi while test $# -gt 0; do case "$1" in -*=*) optarg=`echo "$1" | sed 's/[-_a-zA-Z0-9]*=//'` ;; *) optarg= ;; esac case $1 in --prefix=*) prefix=$optarg if test $exec_prefix_set = no ; then exec_prefix=$optarg fi ;; --prefix) echo $prefix ;; --exec-prefix=*) exec_prefix=$optarg exec_prefix_set=yes ;; --exec-prefix) echo $exec_prefix ;; --version) echo @IJS_VERSION@ ;; --cflags) includes=-I@includedir@/ijs echo $includes ;; --libs) libdirs=-L@libdir@ echo $libdirs -lijs ;; *) echo "${usage}" 1>&2 exit 1 ;; esac shift done automake or libtool). It's probably best to link the static library for/usr/akumar/alt/devel/gs/ijs/ijs.c 644 0 0 6637 11241503077 16040ustar00akumarakumar#include #include "unistd_.h" #include "ijs.h" static void ijs_put_int (char *p, int val) { p[0] = (val >> 24) & 0xff; p[1] = (val >> 16) & 0xff; p[2] = (val >> 8) & 0xff; p[3] = val & 0xff; } void ijs_send_init (IjsSendChan *ch, int fd) { ch->fd = fd; ch->buf_size = 0; } int ijs_send_int (IjsSendChan *ch, int val) { if ((ch->buf_size + 4) > (int)sizeof(ch->buf)) return IJS_ERANGE; ijs_put_int (ch->buf + ch->buf_size, val); ch->buf_size += 4; return 0; } int ijs_send_begin (IjsSendChan *ch, IjsCommand cmd) { if (ch->buf_size != 0) return IJS_EINTERNAL; ijs_send_int (ch, cmd); ch->buf_size += 4; /* leave room for size field */ return 0; } int ijs_send_block (IjsSendChan *ch, const char *buf, int len) { if ((ch->buf_size + len) > (int)sizeof(ch->buf)) return IJS_ERANGE; memcpy (ch->buf + ch->buf_size, buf, len); ch->buf_size += len; return 0; } int ijs_send_buf (IjsSendChan *ch) { int status; ijs_put_int (ch->buf + 4, ch->buf_size); status = write (ch->fd, ch->buf, ch->buf_size); status = (status == ch->buf_size) ? 0 : IJS_EIO; ch->buf_size = 0; return status; } void ijs_recv_init (IjsRecvChan *ch, int fd) { ch->fd = fd; ch->buf_size = 0; } int ijs_get_int (const char *p) { const unsigned char *up = (const unsigned char *)p; return (up[0] << 24) | (up[1] << 16) | (up[2] << 8) | up[3]; } /* This is a drop-in replacement for read(), but handles partial reads. */ int ijs_recv_read (IjsRecvChan *ch, char *buf, int size) { int ix = 0; int nbytes; do { nbytes = read (ch->fd, buf + ix, size - ix); if (nbytes < 0) return nbytes; else if (nbytes == 0) return ix; else ix += nbytes; } while (ix < size); return ix; } int ijs_recv_buf (IjsRecvChan *ch) { int nbytes; int data_size; nbytes = ijs_recv_read (ch, ch->buf, 8); if (nbytes != 8) return IJS_EIO; ch->buf_size = ijs_get_int (ch->buf + 4); if (ch->buf_size < 8 || ch->buf_size > (int)sizeof(ch->buf)) return IJS_ERANGE; data_size = ch->buf_size - 8; if (data_size > 0) { nbytes = ijs_recv_read (ch, ch->buf + 8, data_size); if (nbytes != data_size) return IJS_EIO; } ch->buf_idx = 8; return 0; } /** * ijs_recv_ack: Receive an acknowledgement. * @ch: Channel. * * Receives an acknowledgement code (generally from server to client). * Note that the distinction between local error and error generated * by the remote peer is lost in this routine. If it is important to * preserve this distinction, use ijs_recv_buf directly instead. * * Return value: 0 on success, negative on error. **/ int ijs_recv_ack (IjsRecvChan *ch) { int status; status = ijs_recv_buf (ch); if (status == 0) { int cmd = ijs_get_int (ch->buf); if (cmd == IJS_CMD_NAK) { if (ch->buf_size != 12) status = IJS_EPROTO; else status = ijs_get_int (ch->buf + 8); } } return status; } int ijs_recv_int (IjsRecvChan *ch, int *val) { if (ch->buf_idx + 4 > ch->buf_size) return IJS_EPROTO; *val = ijs_get_int (ch->buf + ch->buf_idx); ch->buf_idx += 4; return 0; } /** * Return value: data block size if nonnegative, or error code if * negative. **/ int ijs_recv_block (IjsRecvChan *ch, char *buf, int buf_size) { int size = ch->buf_size - ch->buf_idx; if (size > buf_size) return IJS_ERANGE; memcpy (buf, ch->buf + ch->buf_idx, size); ch->buf_idx = ch->buf_size; return size; } /usr/akumar/alt/devel/gs/ijs/ijs.h 644 0 0 4012 11241503077 16026ustar00akumarakumar/* This file contains common data types for IJS */ /* IJS_VERSION is decimal version number times 100 */ #define IJS_VERSION 33 typedef int ijs_bool; #ifndef FALSE #define FALSE 0 #endif #ifndef TRUE #define TRUE 1 #endif typedef enum { IJS_CMD_ACK, IJS_CMD_NAK, IJS_CMD_PING, IJS_CMD_PONG, IJS_CMD_OPEN, IJS_CMD_CLOSE, IJS_CMD_BEGIN_JOB, IJS_CMD_END_JOB, IJS_CMD_CANCEL_JOB, IJS_CMD_QUERY_STATUS, IJS_CMD_LIST_PARAMS, IJS_CMD_ENUM_PARAM, IJS_CMD_SET_PARAM, IJS_CMD_GET_PARAM, IJS_CMD_BEGIN_PAGE, IJS_CMD_SEND_DATA_BLOCK, IJS_CMD_END_PAGE, IJS_CMD_EXIT } IjsCommand; typedef int IjsJobId; #define IJS_EIO -2 /* I/O error */ #define IJS_EPROTO -3 /* protocol error */ #define IJS_ERANGE -4 /* out of range */ #define IJS_EINTERNAL -5 /* internal error */ #define IJS_ENYI -6 /* not yet implemented */ #define IJS_ESYNTAX -7 /* syntax error */ #define IJS_ECOLORSPACE -8 /* unknown color space */ #define IJS_EUNKPARAM -9 /* unknown parameter */ #define IJS_EJOBID -10 /* job id doesn't match */ #define IJS_ETOOMANYJOBS -11 /* reached limit of server's #jobs */ #define IJS_EBUF -12 /* buffer isn't big enough */ #define IJS_HELO_STR "IJS\n\252v1\n" #define IJS_RESP_STR "IJS\n\253v1\n" typedef struct { int fd; char buf[4096]; int buf_size; } IjsSendChan; typedef struct { int fd; char buf[4096]; int buf_size; int buf_idx; } IjsRecvChan; void ijs_send_init (IjsSendChan *ch, int fd); int ijs_send_int (IjsSendChan *ch, int val); int ijs_send_begin (IjsSendChan *ch, IjsCommand cmd); int ijs_send_block (IjsSendChan *ch, const char *buf, int len); int ijs_send_buf (IjsSendChan *ch); int ijs_get_int (const char *p); void ijs_recv_init (IjsRecvChan *ch, int fd); int ijs_recv_read (IjsRecvChan *ch, char *buf, int size); int ijs_recv_buf (IjsRecvChan *ch); int ijs_recv_ack (IjsRecvChan *ch); int ijs_recv_int (IjsRecvChan *ch, int *val); int ijs_recv_block (IjsRecvChan *ch, char *buf, int buf_size); _OBJ=ijs$(OBJ) all: ijs_client_example$(EXE) ijs_server_example$(EXE) ijs_client_example$(EXE): ijs_client_example$(OBJ) ijs_client$(OBJ) $(IJS_COMMON_OBJ) $(IJS_EXEC_SERVER) $(CC) $(CFLAGS) $(FE)ijs_client_example$(EXE) ijs_client_example$(OBJ) ijs_client$(OBJ) $(IJS_COMMON_OBJ) $(IJS_EXEC_SERVER) $(LDLIBS) ijs_server_example$(EXE): ijs_server_example$(OBJ) ijs_server$(OBJ) $(IJS_COMMON_OBJ) $(CC) $(CFLAGS) $(FE)ijs_server_example$(EXE) ijs_server_example$(OBJ) ijs_server$(OBJ) $(IJS_COMMON_/usr/akumar/alt/devel/gs/ijs/ijs_client.c 644 0 0 15032 11241503077 17403ustar00akumarakumar#include "unistd_.h" #include #include #include #include "ijs.h" #include "ijs_client.h" struct _IjsClientCtx { int fd_from; int child_pid; IjsSendChan send_chan; IjsRecvChan recv_chan; int version; }; IjsClientCtx * ijs_invoke_server (const char *server_cmd) { IjsClientCtx *ctx; int fds_to[2], fds_from[2]; int child_pid; char helo_buf[8] = IJS_HELO_STR; char resp_buf[8]; const char exp_resp_buf[8] = IJS_RESP_STR; ijs_bool ok = TRUE; int nbytes; int version; if (ijs_exec_server(server_cmd, &fds_to[1], &fds_from[0], &child_pid) < 0) return NULL; ctx = (IjsClientCtx *)malloc (sizeof(IjsClientCtx)); ctx->fd_from = fds_from[0]; ctx->child_pid = child_pid; ijs_send_init (&ctx->send_chan, fds_to[1]); ijs_recv_init (&ctx->recv_chan, fds_from[0]); nbytes = write (ctx->send_chan.fd, helo_buf, sizeof(helo_buf)); if (nbytes != sizeof(helo_buf)) ok = FALSE; if (ok) { nbytes = read (ctx->recv_chan.fd, resp_buf, sizeof(resp_buf)); if (nbytes != sizeof(resp_buf) || memcmp (resp_buf, exp_resp_buf, sizeof(resp_buf))) ok = FALSE; } /* exchange version information with server */ if (ok) ok = ijs_client_begin_cmd (ctx, IJS_CMD_PING) >= 0; if (ok) ok = ijs_send_int (&ctx->send_chan, IJS_VERSION) >= 0; if (ok) ok = ijs_client_send_cmd_wait (ctx) >= 0; if (ok) ok = ijs_recv_int (&ctx->recv_chan, &version) >= 0; if (ok) { if (version > IJS_VERSION) version = IJS_VERSION; ctx->version = version; } if (!ok) { close (ctx->send_chan.fd); close (ctx->recv_chan.fd); free (ctx); ctx = NULL; } return ctx; } int ijs_client_begin_cmd (IjsClientCtx *ctx, IjsCommand cmd) { return ijs_send_begin (&ctx->send_chan, cmd); } int ijs_client_send_int (IjsClientCtx *ctx, int val) { return ijs_send_int (&ctx->send_chan, val); } int ijs_client_send_cmd (IjsClientCtx *ctx) { return ijs_send_buf (&ctx->send_chan); } /** * ijs_client_send_cmd_wait: Send command and wait for ack. * @ctx: IJS client context. * * Sends the command in the client context's buffer, and waits for ack. * * Return value: 0 on successful ack, otherwise negative. **/ int ijs_client_send_cmd_wait (IjsClientCtx *ctx) { int status; status = ijs_client_send_cmd (ctx); if (status >= 0) { status = ijs_recv_ack (&ctx->recv_chan); } return status; } /* This is the blocking version; it's not likely to be efficient */ int ijs_client_send_data_wait (IjsClientCtx *ctx, IjsJobId job_id, const char *buf, int size) { int status; ijs_client_begin_cmd (ctx, IJS_CMD_SEND_DATA_BLOCK); ijs_send_int (&ctx->send_chan, job_id); ijs_send_int (&ctx->send_chan, size); status = ijs_client_send_cmd (ctx); if (status) return status; status = write (ctx->send_chan.fd, buf, size); if (status != size) return IJS_EIO; status = ijs_recv_ack (&ctx->recv_chan); return status; } int ijs_client_open (IjsClientCtx *ctx) { ijs_client_begin_cmd (ctx, IJS_CMD_OPEN); return ijs_client_send_cmd_wait (ctx); } int ijs_client_close (IjsClientCtx *ctx) { ijs_client_begin_cmd (ctx, IJS_CMD_CLOSE); return ijs_client_send_cmd_wait (ctx); } int ijs_client_begin_job (IjsClientCtx *ctx, IjsJobId job_id) { ijs_client_begin_cmd (ctx, IJS_CMD_BEGIN_JOB); ijs_send_int (&ctx->send_chan, job_id); return ijs_client_send_cmd_wait (ctx); } int ijs_client_end_job (IjsClientCtx *ctx, IjsJobId job_id) { ijs_client_begin_cmd (ctx, IJS_CMD_END_JOB); ijs_send_int (&ctx->send_chan, job_id); return ijs_client_send_cmd_wait (ctx); } /** * Return value: data block size if nonnegative, or error code if * negative. **/ int ijs_client_list_params (IjsClientCtx *ctx, IjsJobId job_id, char *value, int value_size) { int status; ijs_client_begin_cmd (ctx, IJS_CMD_LIST_PARAMS); ijs_send_int (&ctx->send_chan, job_id); status = ijs_client_send_cmd (ctx); if (status) return status; status = ijs_recv_ack (&ctx->recv_chan); if (status) return status; status = ijs_recv_block (&ctx->recv_chan, value, value_size); return status; } /** * Return value: data block size if nonnegative, or error code if * negative. **/ int ijs_client_enum_param (IjsClientCtx *ctx, IjsJobId job_id, const char *key, char *value, int value_size) { int key_size = strlen (key); int status; ijs_client_begin_cmd (ctx, IJS_CMD_ENUM_PARAM); ijs_send_int (&ctx->send_chan, job_id); status = ijs_send_block (&ctx->send_chan, key, key_size + 1); if (status < 0) return IJS_EIO; status = ijs_client_send_cmd (ctx); if (status) return status; status = ijs_recv_ack (&ctx->recv_chan); if (status) return status; status = ijs_recv_block (&ctx->recv_chan, value, value_size); return status; } int ijs_client_set_param (IjsClientCtx *ctx, IjsJobId job_id, const char *key, const char *value, int value_size) { int key_size = strlen (key); int status; ijs_client_begin_cmd (ctx, IJS_CMD_SET_PARAM); ijs_send_int (&ctx->send_chan, job_id); ijs_send_int (&ctx->send_chan, key_size + 1 + value_size); status = ijs_send_block (&ctx->send_chan, key, key_size+1); if (status) return status; status = ijs_send_block (&ctx->send_chan, value, value_size); if (status) return status; status = ijs_client_send_cmd (ctx); if (status) return status; status = ijs_recv_ack (&ctx->recv_chan); return status; } /** * Return value: data block size if nonnegative, or error code if * negative. **/ int ijs_client_get_param (IjsClientCtx *ctx, IjsJobId job_id, const char *key, char *value, int value_size) { int key_size = strlen (key); int status; ijs_client_begin_cmd (ctx, IJS_CMD_GET_PARAM); ijs_send_int (&ctx->send_chan, job_id); status = ijs_send_block (&ctx->send_chan, key, key_size + 1); if (status < 0) return IJS_EIO; status = ijs_client_send_cmd (ctx); if (status) return status; status = ijs_recv_ack (&ctx->recv_chan); if (status) return status; status = ijs_recv_block (&ctx->recv_chan, value, value_size); return status; } int ijs_client_begin_page (IjsClientCtx *ctx, IjsJobId job_id) { ijs_client_begin_cmd (ctx, IJS_CMD_BEGIN_PAGE); ijs_send_int (&ctx->send_chan, job_id); return ijs_client_send_cmd_wait (ctx); } int ijs_client_end_page (IjsClientCtx *ctx, IjsJobId job_id) { ijs_client_begin_cmd (ctx, IJS_CMD_END_PAGE); ijs_send_int (&ctx->send_chan, job_id); return ijs_client_send_cmd_wait (ctx); } int ijs_client_get_version (IjsClientCtx *ctx) { return ctx->version; } js/ijs.h 644 0 0 4012 11241503077 16026ustar00akumarakumar/usr/akumar/alt/devel/gs/ijs/ijs_client.h 644 0 0 2672 11241503077 17376ustar00akumarakumar#ifdef __cplusplus extern "C" { #endif typedef struct _IjsClientCtx IjsClientCtx; IjsClientCtx * ijs_invoke_server (const char *server_cmd); int ijs_exec_server (const char *server_cmd, int *pfd_to, int *pfd_from, int *pchild_pid); int ijs_client_begin_cmd (IjsClientCtx *ctx, IjsCommand cmd); int ijs_client_send_int (IjsClientCtx *ctx, int val); int ijs_client_send_cmd (IjsClientCtx *ctx); int ijs_client_send_cmd_wait (IjsClientCtx *ctx); int ijs_client_send_data_wait (IjsClientCtx *ctx, IjsJobId job_id, const char *buf, int size); int ijs_client_open (IjsClientCtx *ctx); int ijs_client_close (IjsClientCtx *ctx); int ijs_client_begin_job (IjsClientCtx *ctx, IjsJobId job_id); int ijs_client_end_job (IjsClientCtx *ctx, IjsJobId job_id); int ijs_client_list_params (IjsClientCtx *ctx, IjsJobId job_id, char *value, int value_size); int ijs_client_enum_param (IjsClientCtx *ctx, IjsJobId job_id, const char *key, char *value, int value_size); int ijs_client_set_param (IjsClientCtx *ctx, IjsJobId job_id, const char *key, const char *value, int value_size); int ijs_client_get_param (IjsClientCtx *ctx, IjsJobId job_id, const char *key, char *value, int value_size); int ijs_client_begin_page (IjsClientCtx *ctx, IjsJobId job_id); int ijs_client_end_page (IjsClientCtx *ctx, IjsJobId job_id); int ijs_client_get_version (IjsClientCtx *ctx); #ifdef __cplusplus } #endif *ch, int *val); int ijs_recv_block (IjsRecvChan *ch, char *buf, int b/usr/akumar/alt/devel/gs/ijs/ijs_client_example.c 644 0 0 16510 11241503077 21120ustar00akumarakumar#include #include #include #include "ijs.h" #include "ijs_client.h" static int example_list_params (IjsClientCtx *ctx) { int status = 0; char buf[4096]; char ebuf[4096]; char *p; status = ijs_client_list_params (ctx, 0, buf, sizeof(buf) - 1); if (status >= 0) { buf[status] = 0; fprintf (stderr, "settable params: %s\n", buf); p = strtok(buf, ","); while (p) { status = ijs_client_enum_param (ctx, 0, p, ebuf, sizeof(ebuf) - 1); if (status >= 0) { ebuf[status] = 0; fprintf (stderr, " %s: %s\n", p, ebuf); } else { fprintf (stderr, "Error %d getting param %s\n", status, p); } p = strtok(NULL, ","); } } else { fprintf (stderr, "Error %d listing params\n", status); } return status; } static int send_pnm_file (IjsClientCtx *ctx, FILE *f, int xres, int yres) { int width, height; char *lp, type; int total_bytes, bytes_left; int n_chan, bps; char buf[4096]; int status = 0; lp = fgets (buf, sizeof(buf), f); if (lp == NULL) { fprintf (stderr, "error reading file\n"); return 1; } if (lp[0] != 'P' || lp[1] < '4' || lp[1] > '6') { fprintf (stderr, "need pnmraw file\n"); return 1; } type = lp[1]; do { lp = fgets (buf, sizeof(buf), f); } while (lp != NULL && lp[0] == '#'); if (sscanf (lp, "%d %d", &width, &height) != 2) { fprintf (stderr, "format error\n"); return 1; } if (type >= '5') { /* skip depth */ do { lp = fgets (buf, sizeof(buf), f); } while (lp != NULL && lp[0] == '#'); } n_chan = (type == '6') ? 3 : 1; bps = (type == '4') ? 1 : 8; /* Set required parameters. Note: we should be checking the return values. */ sprintf (buf, "%d", n_chan); ijs_client_set_param (ctx, 0, "NumChan", buf, strlen (buf)); sprintf (buf, "%d", bps); ijs_client_set_param (ctx, 0, "BitsPerSample", buf, strlen (buf)); strcpy (buf, (n_chan == 3) ? "DeviceRGB" : "DeviceGray"); ijs_client_set_param (ctx, 0, "ColorSpace", buf, strlen (buf)); sprintf (buf, "%d", width); ijs_client_set_param (ctx, 0, "Width", buf, strlen (buf)); sprintf (buf, "%d", height); ijs_client_set_param (ctx, 0, "Height", buf, strlen (buf)); sprintf (buf, "%dx%d", xres, yres); ijs_client_set_param (ctx, 0, "Dpi", buf, strlen (buf)); ijs_client_begin_page (ctx, 0); total_bytes = ((n_chan * bps * width + 7) >> 3) * height; bytes_left = total_bytes; while (bytes_left) { int n_bytes = bytes_left; if (n_bytes > sizeof(buf)) n_bytes = sizeof(buf); fread (buf, 1, n_bytes, f); /* todo: check error */ if (type == '4') { /* invert pbm so black is 0, as per DeviceGray color space */ int i; for (i = 0; i < n_bytes; i++) buf[i] ^= 0xff; } status = ijs_client_send_data_wait (ctx, 0, buf, n_bytes); if (status) break; bytes_left -= n_bytes; } ijs_client_end_page (ctx, 0); return status; } static void verify_context (IjsClientCtx *ctx) { if (ctx == NULL) { fprintf (stderr, "Must specify valid server with -s flag\n"); exit (1); } } static void param_usage (void) { fprintf (stderr, "parameter list must be in key=value, key=value format\n"); } static void example_set_params (IjsClientCtx *ctx, const char *arg) { int code; int i, inext; char key[256]; char buf[4096]; int buf_ix; for (i = 0; arg[i] != 0; i = inext) { int ibeg, ieq, iend; int key_size; for (ibeg = i; arg[ibeg] == ' '; ibeg++); for (ieq = ibeg; arg[ieq] != 0; ieq++) { if (arg[ieq] == '=') break; } if (arg[ieq] == 0) { param_usage (); return; } for (iend = ieq; iend >= ibeg; iend--) if (arg[iend - 1] != ' ') break; if (iend == ibeg) { param_usage (); return; } key_size = iend - ibeg; if (key_size + 1 > sizeof(key)) { fprintf (stderr, "Key exceeds %d bytes\n", sizeof(key)); return; } memcpy (key, arg + ibeg, key_size); key[key_size] = 0; buf_ix = 0; for (i = ieq + 1; arg[i] == ' '; i++); for (; arg[i] != 0; i++) { if (arg[i] == ',') break; if (buf_ix == sizeof(buf)) { fprintf (stderr, "Value for %s exceeds %d bytes\n", key, sizeof(buf)); return; } if (arg[i] == '\\' && arg[i + 1] != 0) buf[buf_ix++] = arg[++i]; else buf[buf_ix++] = arg[i]; } if (arg[i] == ',') inext = i + 1; else inext = i; code = ijs_client_set_param (ctx, 0, key, buf, buf_ix); if (code < 0) fprintf (stderr, "Warning: error %d setting parameter %s\n", code, key); } } static void example_get_param (IjsClientCtx *ctx, const char *arg) { char buf[4096]; int status; status = ijs_client_get_param (ctx, 0, arg, buf, sizeof(buf) - 1); if (status >= 0) { buf[status] = 0; fprintf (stderr, "value of param %s = %s\n", arg, buf); } else { fprintf (stderr, "Error %d getting param %s\n", status, arg); } } static void example_enum_param (IjsClientCtx *ctx, const char *arg) { char buf[4096]; int status; status = ijs_client_enum_param (ctx, 0, arg, buf, sizeof(buf) - 1); if (status >= 0) { buf[status] = 0; fprintf (stderr, "enumeration of param %s: %s\n", arg, buf); } else { fprintf (stderr, "Error %d getting param %s\n", status, arg); } } static const char * get_arg (int argc, char **argv, int *pi, const char *arg) { if (arg[0] != 0) return arg; else { (*pi)++; if (*pi == argc) return NULL; else return argv[*pi]; } } int main (int argc, char **argv) { IjsClientCtx *ctx; int i; int xres = 300, yres = 300; ctx = NULL; for (i = 1; i < argc; i++) { const char *arg = argv[i]; if (arg[0] == '-') { switch (arg[1]) { case 'r': { char *tail; arg = get_arg (argc, argv, &i, arg + 2); xres = strtol (arg, &tail, 10); if (tail[0] == 0) yres = xres; else if (tail[0] == 'x') yres = strtol (tail + 1, &tail, 10); } break; case 's': arg = get_arg (argc, argv, &i, arg + 2); ctx = ijs_invoke_server (arg); ijs_client_open (ctx); ijs_client_begin_job (ctx, 0); break; case 'p': arg = get_arg (argc, argv, &i, arg + 2); verify_context (ctx); example_set_params (ctx, arg); break; case 'g': arg = get_arg (argc, argv, &i, arg + 2); verify_context (ctx); example_get_param (ctx, arg); break; case 'e': arg = get_arg (argc, argv, &i, arg + 2); verify_context (ctx); example_enum_param (ctx, arg); break; case 'l': verify_context (ctx); example_list_params (ctx); break; case 0: verify_context (ctx); send_pnm_file (ctx, stdin, xres, yres); break; } } else { FILE *f = fopen (arg, "rb"); if (f == NULL) { fprintf (stderr, "error opening %s\n", arg); return 1; } verify_context (ctx); send_pnm_file (ctx, f, xres, yres); fclose (f); } } verify_context (ctx); ijs_client_end_job (ctx, 0); ijs_client_close (ctx); /* todo - suffield race, proceduralize */ ijs_client_begin_cmd (ctx, IJS_CMD_EXIT); ijs_client_send_cmd_wait (ctx); return 0; } /usr/akumar/alt/devel/gs/ijs/ijs_exec_unix.c 644 0 0 3177 11241503077 20103ustar00akumarakumar#include "unistd_.h" #include #include #include #include "ijs.h" #include "ijs_client.h" int ijs_exec_server(const char *server_cmd, int *pfd_to, int *pfd_from, int *pchild_pid) { int fds_to[2], fds_from[2]; int child_pid; if (pipe (fds_to) < 0) return -1; if (pipe (fds_from) < 0) { close (fds_to[0]); close (fds_to[1]); return -1; } child_pid = fork (); if (child_pid < 0) { close (fds_to[0]); close (fds_to[1]); close (fds_from[0]); close (fds_from[1]); return -1; } if (child_pid == 0) { int status; char *argv[8]; int i = 0; close (fds_to[1]); close (fds_from[0]); dup2 (fds_to[0], STDIN_FILENO); dup2 (fds_from[1], STDOUT_FILENO); #define noGDB #ifdef GDB argv[i++] = "gdb"; #endif argv[i++] = "ape/sh"; argv[i++] = "-c"; argv[i++] = (char *)server_cmd; argv[i++] = NULL; status = execvp (argv[0], argv); if (status < 0) exit (1); } /* Ignore SIGPIPE signals. This is the behaviour you'll want most of the time, as the attempt to read or write to the pipe will fail and the client will find out then. If the client needs to preserve the SIGPIPE signal, it can either install its own signal handler after this call, or hack the code. */ signal (SIGPIPE, SIG_IGN); #ifdef VERBOSE fprintf (stderr, "child_pid = %d; %d %d\n", child_pid, fds_to[0], fds_from[1]); #endif close (fds_to[0]); close (fds_from[1]); *pfd_to = fds_to[1]; *pfd_from = fds_from[0]; *pchild_pid = child_pid; return 0; } 16510 11241503077 21120ustar00akumarakumar/usr/akumar/alt/devel/gs/ijs/ijs_exec_win.c 644 0 0 10121 11241503077 17720ustar00akumarakumar#define STRICT #include #include #include #include "ijs.h" #include "ijs_client.h" /* Start child program with redirected standard input and output */ int ijs_exec_server(const char *server_cmd, int *pfd_to, int *pfd_from, int *pchild_pid) { SECURITY_ATTRIBUTES saAttr; STARTUPINFO siStartInfo; LPVOID env; HANDLE hPipeTemp; HANDLE hChildStdinRd = INVALID_HANDLE_VALUE; HANDLE hChildStdinWr = INVALID_HANDLE_VALUE; HANDLE hChildStdoutRd = INVALID_HANDLE_VALUE; HANDLE hChildStdoutWr = INVALID_HANDLE_VALUE; PROCESS_INFORMATION piProcInfo; BOOL flag; int fd_stdin_wr = -1; int fd_stdout_rd = -1; /* Set the bInheritHandle flag so pipe handles are inherited. */ saAttr.nLength = sizeof(SECURITY_ATTRIBUTES); saAttr.bInheritHandle = TRUE; saAttr.lpSecurityDescriptor = NULL; /* Create anonymous inheritable pipes for STDIN and STDOUT * for child. For each pipe, create a noninheritable duplicate handle * of our end of the pipe, then close the inheritable handle. * Do not redirect STDERR. */ flag = CreatePipe(&hChildStdinRd, &hPipeTemp, &saAttr, 0); if (flag) { flag = DuplicateHandle(GetCurrentProcess(), hPipeTemp, GetCurrentProcess(), &hChildStdinWr, 0, FALSE, /* not inherited */ DUPLICATE_SAME_ACCESS); CloseHandle(hPipeTemp); } if (flag) flag = CreatePipe(&hPipeTemp, &hChildStdoutWr, &saAttr, 0); if (flag) { flag = DuplicateHandle(GetCurrentProcess(), hPipeTemp, GetCurrentProcess(), &hChildStdoutRd, 0, FALSE, /* not inherited */ DUPLICATE_SAME_ACCESS); CloseHandle(hPipeTemp); } if (flag) flag = (fd_stdin_wr = _open_osfhandle((LONG)hChildStdinWr, 0)) != -1; if (flag) flag = (fd_stdout_rd = _open_osfhandle((LONG)hChildStdoutRd, 0)) != -1; /* Now create the child process. */ if (flag) { /* Set up members of STARTUPINFO structure. */ siStartInfo.cb = sizeof(STARTUPINFO); siStartInfo.lpReserved = NULL; siStartInfo.lpDesktop = NULL; siStartInfo.lpTitle = NULL; /* use executable name as title */ siStartInfo.dwX = siStartInfo.dwY = CW_USEDEFAULT; /* ignored */ siStartInfo.dwXSize = siStartInfo.dwYSize = CW_USEDEFAULT;/* ignored */ siStartInfo.dwXCountChars = 80; siStartInfo.dwYCountChars = 25; siStartInfo.dwFillAttribute = 0; /* ignored */ siStartInfo.dwFlags = STARTF_USESTDHANDLES; #ifdef VERBOSE siStartInfo.wShowWindow = SW_SHOWNORMAL; siStartInfo.dwFlags |= STARTF_USESHOWWINDOW; #else siStartInfo.wShowWindow = SW_HIDE; #endif siStartInfo.cbReserved2 = 0; siStartInfo.lpReserved2 = NULL; siStartInfo.hStdInput = hChildStdinRd; siStartInfo.hStdOutput = hChildStdoutWr; siStartInfo.hStdError = GetStdHandle(STD_ERROR_HANDLE); env = NULL; /* Create the child process. */ flag = CreateProcess(server_cmd, NULL, /* command line */ NULL, /* process security attributes */ NULL, /* primary thread security attributes */ TRUE, /* handles are inherited */ 0, /* creation flags */ env, /* environment */ NULL, /* use parent's current directory */ &siStartInfo, /* STARTUPINFO pointer */ &piProcInfo); /* receives PROCESS_INFORMATION */ if (flag) { CloseHandle(piProcInfo.hProcess); CloseHandle(piProcInfo.hThread); } } if (hChildStdinRd != INVALID_HANDLE_VALUE) CloseHandle(hChildStdinRd); if (hChildStdoutWr != INVALID_HANDLE_VALUE) CloseHandle(hChildStdoutWr); if (flag) { *pfd_to = fd_stdin_wr; *pfd_from = fd_stdout_rd; *pchild_pid = (int)piProcInfo.dwProcessId; } else { if (fd_stdin_wr != -1) close(fd_stdin_wr); else if (hChildStdinWr != INVALID_HANDLE_VALUE) CloseHandle(hChildStdinWr); if (fd_stdout_rd != -1) close(fd_stdout_rd); else if (hChildStdoutRd != INVALID_HANDLE_VALUE) CloseHandle(hChildStdoutRd); return -1; } return flag ? 0 : -1; } rr, "Warning: error %d setting parameter %s\n", code, key); } } static void example_get_param (IjsClientCtx *ctx, const char *arg) { char buf[4096]; int status; status = ijs_client_get_param (ctx, 0, arg, buf, sizeof(buf) - 1); if (status >= 0) { buf[status] = 0; fprintf (stderr, "value of param %s = %s\n", arg, buf); } else { fprintf (stderr, "Error %d getting param %s\n", statu/usr/akumar/alt/devel/gs/ijs/ijs_server.c 644 0 0 45032 11241503077 17436ustar00akumarakumar#include #include #include "unistd_.h" #include #include "ijs.h" #include "ijs_server.h" #define noVERBOSE typedef enum { IJS_N_CHAN_SET = 1, IJS_BPS_SET = 2, IJS_CS_SET = 4, IJS_WIDTH_SET = 8, IJS_HEIGHT_SET = 16, IJS_DPI_SET = 32 } IjsFieldsSet; #define IJS_FIELDS_REQUIRED (IJS_N_CHAN_SET | IJS_BPS_SET | IJS_CS_SET | \ IJS_WIDTH_SET | IJS_HEIGHT_SET | IJS_DPI_SET) struct _IjsServerCtx { int fd_from; int child_pid; IjsSendChan send_chan; IjsRecvChan recv_chan; int version; /* callbacks */ IjsBeginJobCb *begin_cb; void *begin_cb_data; IjsEndJobCb *end_cb; void *end_cb_data; IjsQueryStatusCb *status_cb; void *status_cb_data; IjsListParamsCb *list_cb; void *list_cb_data; IjsEnumParamCb *enum_cb; void *enum_cb_data; IjsSetParamCb *set_cb; void *set_cb_data; IjsGetParamCb *get_cb; void *get_cb_data; ijs_bool in_job; IjsJobId job_id; IjsPageHeader *ph; /* This should be IjsFieldsSet, but David Suffield reports that this causes problems when compiling with g++. */ int fields_set; ijs_bool in_page; char *buf; int buf_size; int buf_ix; char *overflow_buf; int overflow_buf_size; int overflow_buf_ix; }; static int ijs_server_dummy_begin_cb (void *begin_cb_data, IjsServerCtx *ctx, IjsJobId job_id) { return 0; } static int ijs_server_dummy_end_cb (void *end_cb_data, IjsServerCtx *ctx, IjsJobId job_id) { return 0; } IjsServerCtx * ijs_server_init (void) { ijs_bool ok = TRUE; char helo_buf[8]; char resp_buf[8]; int nbytes; IjsServerCtx *ctx = (IjsServerCtx *)malloc (sizeof(IjsServerCtx)); int fd_from, fd_to; memcpy (resp_buf, IJS_RESP_STR, sizeof(resp_buf)); fd_from = 0; fd_to = 1; #ifdef _MSC_VER _setmode(fd_from, _O_BINARY); _setmode(fd_to, _O_BINARY); #endif #ifdef VERBOSE fprintf (stderr, "fd_from = %d, fd_to = %d\n", fd_from, fd_to); #endif ijs_recv_init (&ctx->recv_chan, fd_from); ijs_send_init (&ctx->send_chan, fd_to); nbytes = read (ctx->recv_chan.fd, helo_buf, sizeof(helo_buf)); if (nbytes != sizeof(helo_buf)) ok = FALSE; if (ok) nbytes = write (ctx->send_chan.fd, resp_buf, sizeof(resp_buf)); if (nbytes != sizeof(resp_buf)) ok = FALSE; ctx->in_job = FALSE; ctx->job_id = -1; ctx->ph = NULL; ctx->in_page = FALSE; ctx->buf = NULL; ctx->overflow_buf = NULL; ctx->begin_cb = ijs_server_dummy_begin_cb; ctx->end_cb = ijs_server_dummy_end_cb; if (ok) return ctx; else { ijs_server_done (ctx); return NULL; } } int ijs_server_install_begin_cb (IjsServerCtx *ctx, IjsBeginJobCb *begin_cb, void *begin_cb_data) { ctx->begin_cb = begin_cb; ctx->begin_cb_data = begin_cb_data; return 0; } int ijs_server_install_end_cb (IjsServerCtx *ctx, IjsEndJobCb *end_cb, void *end_cb_data) { ctx->end_cb = end_cb; ctx->end_cb_data = end_cb_data; return 0; } int ijs_server_install_status_cb (IjsServerCtx *ctx, IjsQueryStatusCb *status_cb, void *status_cb_data) { ctx->status_cb = status_cb; ctx->status_cb_data = status_cb_data; return 0; } int ijs_server_install_list_cb (IjsServerCtx *ctx, IjsListParamsCb *list_cb, void *list_cb_data) { ctx->list_cb = list_cb; ctx->list_cb_data = list_cb_data; return 0; } int ijs_server_install_enum_cb (IjsServerCtx *ctx, IjsEnumParamCb *enum_cb, void *enum_cb_data) { ctx->enum_cb = enum_cb; ctx->enum_cb_data = enum_cb_data; return 0; } int ijs_server_install_set_cb (IjsServerCtx *ctx, IjsSetParamCb *set_cb, void *set_cb_data) { ctx->set_cb = set_cb; ctx->set_cb_data = set_cb_data; return 0; } int ijs_server_install_get_cb (IjsServerCtx *ctx, IjsGetParamCb *get_cb, void *get_cb_data) { ctx->get_cb = get_cb; ctx->get_cb_data = get_cb_data; return 0; } static int ijs_server_ack (IjsServerCtx *ctx) { int status; status = ijs_send_begin (&ctx->send_chan, IJS_CMD_ACK); if (status < 0) return status; return ijs_send_buf (&ctx->send_chan); } void ijs_server_done (IjsServerCtx *ctx) { /* todo: close channels */ ijs_server_ack (ctx); free (ctx); } static int ijs_server_nak (IjsServerCtx *ctx, int errorcode) { int status; status = ijs_send_begin (&ctx->send_chan, IJS_CMD_NAK); if (status < 0) return status; status = ijs_send_int (&ctx->send_chan, errorcode); if (status < 0) return status; return ijs_send_buf (&ctx->send_chan); } /* The return code is: 0 if ok, positive on normal exit, negative on error */ typedef int (*ijs_server_proc) (IjsServerCtx *ctx); static int ijs_server_proc_ack (IjsServerCtx *ctx) { /* servers should not get ack commands */ return IJS_EPROTO; } static int ijs_server_proc_nak (IjsServerCtx *ctx) { /* servers should not get nak commands */ return IJS_EPROTO; } static int ijs_server_proc_ping (IjsServerCtx *ctx) { int status; int version; status = ijs_recv_int (&ctx->recv_chan, &version); if (status < 0) return status; if (version > IJS_VERSION) version = IJS_VERSION; ctx->version = version; #ifdef VERBOSE fprintf (stderr, "ping version=%d\n", version); #endif status = ijs_send_begin (&ctx->send_chan, IJS_CMD_PONG); if (status < 0) return status; status = ijs_send_int (&ctx->send_chan, IJS_VERSION); if (status < 0) return status; return ijs_send_buf (&ctx->send_chan); } static int ijs_server_proc_pong (IjsServerCtx *ctx) { /* servers should not get pong commands */ return IJS_EPROTO; } static int ijs_server_proc_open (IjsServerCtx *ctx) { /* A server might allocate tables here. */ return ijs_server_ack (ctx); } static int ijs_server_proc_close (IjsServerCtx *ctx) { /* A server might deallocate memory here. */ return ijs_server_ack (ctx); } static int ijs_server_proc_begin_job (IjsServerCtx *ctx) { int code; IjsJobId job_id; code = ijs_recv_int (&ctx->recv_chan, &job_id); if (code < 0) return code; if (ctx->in_job) return ijs_server_nak (ctx, IJS_ETOOMANYJOBS); ctx->in_job = TRUE; ctx->job_id = job_id; return ijs_server_ack (ctx); } static int ijs_server_proc_end_job (IjsServerCtx *ctx) { int code; IjsJobId job_id; code = ijs_recv_int (&ctx->recv_chan, &job_id); if (code < 0) return code; if (!ctx->in_job || job_id != ctx->job_id) return ijs_server_nak (ctx, IJS_EJOBID); ctx->in_job = FALSE; return ijs_server_ack (ctx); } static int ijs_server_proc_cancel_job (IjsServerCtx *ctx) { int code; IjsJobId job_id; code = ijs_recv_int (&ctx->recv_chan, &job_id); if (code < 0) return code; if (!ctx->in_job || job_id != ctx->job_id) return ijs_server_nak (ctx, IJS_EJOBID); /* todo: call cancel callback here */ ctx->in_job = FALSE; return ijs_server_ack (ctx); } static int ijs_server_proc_query_status (IjsServerCtx *ctx) { int code; IjsJobId job_id; code = ijs_recv_int (&ctx->recv_chan, &job_id); if (code < 0) return code; if (!ctx->in_job || ctx->job_id != job_id) return ijs_server_nak (ctx, IJS_EJOBID); code = ctx->status_cb (ctx->list_cb_data, ctx, job_id); if (code < 0) return ijs_server_nak (ctx, code); else { int status; status = ijs_send_begin (&ctx->send_chan, IJS_CMD_ACK); if (status < 0) return status; status = ijs_send_int (&ctx->send_chan, code); if (status < 0) return status; return ijs_send_buf (&ctx->send_chan); } } static int ijs_server_proc_list_params (IjsServerCtx *ctx) { int code; char buf[4096]; IjsJobId job_id; code = ijs_recv_int (&ctx->recv_chan, &job_id); if (code < 0) return code; if (!ctx->in_job || ctx->job_id != job_id) return ijs_server_nak (ctx, IJS_EJOBID); code = ctx->list_cb (ctx->list_cb_data, ctx, job_id, buf, sizeof(buf)); if (code < 0) return ijs_server_nak (ctx, code); else { int status; status = ijs_send_begin (&ctx->send_chan, IJS_CMD_ACK); if (status < 0) return status; status = ijs_send_block (&ctx->send_chan, buf, code); if (status < 0) return status; return ijs_send_buf (&ctx->send_chan); } } static int ijs_server_proc_enum_param (IjsServerCtx *ctx) { const char *key; int key_size; int code; char buf[4096]; IjsJobId job_id; code = ijs_recv_int (&ctx->recv_chan, &job_id); if (code < 0) return code; if (!ctx->in_job || ctx->job_id != job_id) return ijs_server_nak (ctx, IJS_EJOBID); key = ctx->recv_chan.buf + ctx->recv_chan.buf_idx; key_size = ctx->recv_chan.buf_size - ctx->recv_chan.buf_idx; if (key_size == 0 || key[key_size - 1]) return IJS_ESYNTAX; #ifdef VERBOSE fprintf (stderr, "ijs_server_proc_enum_param, key_size = %d\n", key_size); #endif code = ctx->enum_cb (ctx->enum_cb_data, ctx, job_id, key, buf, sizeof(buf)); if (code < 0) return ijs_server_nak (ctx, code); else { int status; status = ijs_send_begin (&ctx->send_chan, IJS_CMD_ACK); if (status < 0) return status; status = ijs_send_block (&ctx->send_chan, buf, code); if (status < 0) return status; return ijs_send_buf (&ctx->send_chan); } } static int ijs_strnlen (const char *s, int size) { int i; for (i = 0; i < size; i++) if (s[i] == 0) return i; return size; } static int ijs_server_parse_int (const char *value, int size, int *result) { int num = 0; int i; int sign = 1; i = 0; if (i == size) return IJS_ESYNTAX; if (value[i] == '-') { sign = -1; i++; } if (i == size) return IJS_ESYNTAX; for (; i < size; i++) { char c = value[i]; if (c < '0' || c > '9') return IJS_ESYNTAX; num = (num * 10) + (c - '0'); } *result = num; return 0; } static int ijs_server_parse_float (const char *value, int size, double *result) { char buf[256]; char *tail; if (size + 1 > sizeof(buf)) return IJS_EBUF; memcpy (buf, value, size); buf[size] = 0; *result = strtod (buf, &tail); if (tail == buf) return IJS_ESYNTAX; return 0; } static int ijs_server_set_param (IjsServerCtx *ctx, IjsJobId job_id, const char *key, const char *value, int value_size) { int code; #ifdef VERBOSE fprintf (stderr, "set_param %s = ", key); fwrite (value, 1, value_size, stderr); fputs ("\n", stderr); #endif if (!strcmp (key, "NumChan")) { code = ijs_server_parse_int (value, value_size, &ctx->ph->n_chan); if (code == 0) ctx->fields_set |= IJS_N_CHAN_SET; return code; } else if (!strcmp (key, "BitsPerSample")) { code = ijs_server_parse_int (value, value_size, &ctx->ph->bps); if (code == 0) ctx->fields_set |= IJS_BPS_SET; return code; } else if (!strcmp (key, "ColorSpace")) { int size = value_size; if (size < (int)sizeof(ctx->ph->cs) - 1) size = sizeof(ctx->ph->cs) - 1; memcpy (ctx->ph->cs, value, size); ctx->ph->cs[size] = 0; ctx->fields_set |= IJS_CS_SET; return 0; } else if (!strcmp (key, "Width")) { code = ijs_server_parse_int (value, value_size, &ctx->ph->width); if (code == 0) ctx->fields_set |= IJS_WIDTH_SET; return code; } else if (!strcmp (key, "Height")) { code = ijs_server_parse_int (value, value_size, &ctx->ph->height); if (code == 0) ctx->fields_set |= IJS_HEIGHT_SET; return code; } else if (!strcmp (key, "Dpi")) { int x_ix; for (x_ix = 0; x_ix < value_size; x_ix++) if (value[x_ix] == 'x') break; if (x_ix == value_size) return IJS_ESYNTAX; code = ijs_server_parse_float (value, x_ix, &ctx->ph->xres); if (code < 0) return code; code = ijs_server_parse_float (value + x_ix + 1, value_size - (x_ix + 1), &ctx->ph->yres); if (code < 0) return code; ctx->fields_set |= IJS_DPI_SET; return 0; } else { return ctx->set_cb (ctx->set_cb_data, ctx, job_id, key, value, value_size); } } static int ijs_server_proc_set_param (IjsServerCtx *ctx) { const char *key, *value; int key_size, value_size; IjsJobId job_id; int param_size; int code; code = ijs_recv_int (&ctx->recv_chan, &job_id); if (code < 0) return code; if (!ctx->in_job || ctx->job_id != job_id) return ijs_server_nak (ctx, IJS_EJOBID); code = ijs_recv_int (&ctx->recv_chan, ¶m_size); if (code < 0) return code; if (param_size != ctx->recv_chan.buf_size - ctx->recv_chan.buf_idx) return IJS_EPROTO; key = ctx->recv_chan.buf + ctx->recv_chan.buf_idx; key_size = ijs_strnlen (key, ctx->recv_chan.buf_size); if (key_size == param_size) return IJS_EPROTO; value = key + key_size + 1; value_size = param_size - (key_size + 1); code = ijs_server_set_param (ctx, job_id, key, value, value_size); if (code) return ijs_server_nak (ctx, code); else return ijs_server_ack (ctx); } static int ijs_server_get_param (IjsServerCtx *ctx, IjsJobId job_id, const char *key, char *value, int value_size) { #ifdef VERBOSE fprintf (stderr, "ijs_server_get_param %s\n", key); #endif return ctx->get_cb (ctx->get_cb_data, ctx, job_id, key, value, value_size); } static int ijs_server_proc_get_param (IjsServerCtx *ctx) { const char *key; int key_size; int code; char buf[4096]; IjsJobId job_id; code = ijs_recv_int (&ctx->recv_chan, &job_id); if (code < 0) return code; if (!ctx->in_job || ctx->job_id != job_id) return ijs_server_nak (ctx, IJS_EJOBID); key = ctx->recv_chan.buf + ctx->recv_chan.buf_idx; key_size = ctx->recv_chan.buf_size - ctx->recv_chan.buf_idx; if (key_size == 0 || key[key_size - 1]) return IJS_ESYNTAX; #ifdef VERBOSE fprintf (stderr, "ijs_server_proc_get_param, key_size = %d\n", key_size); #endif code = ijs_server_get_param (ctx, job_id, key, buf, sizeof(buf)); if (code < 0) return ijs_server_nak (ctx, code); else { int status; status = ijs_send_begin (&ctx->send_chan, IJS_CMD_ACK); if (status < 0) return status; status = ijs_send_block (&ctx->send_chan, buf, code); if (status < 0) return status; return ijs_send_buf (&ctx->send_chan); } } static int ijs_server_proc_begin_page (IjsServerCtx *ctx) { IjsPageHeader *ph = ctx->ph; int status = 0; if (ph == NULL) status = IJS_EPROTO; if ((ctx->fields_set & IJS_FIELDS_REQUIRED) != IJS_FIELDS_REQUIRED) status = IJS_EPROTO; #ifdef VERBOSE fprintf (stderr, "begin page %d %d %d %d %d\n", ph->n_chan, ph->bps, ph->cs, ph->width, ph->height); #endif if (!status) { ctx->in_page = TRUE; return ijs_server_ack (ctx); } else return ijs_server_nak (ctx, status); } static int ijs_server_read_data (IjsServerCtx *ctx, char *buf, int size) { int status; status = ijs_recv_read (&ctx->recv_chan, buf, size); return (status == size) ? 0 : IJS_EIO; } static int ijs_server_proc_send_data_block (IjsServerCtx *ctx) { int size; int status = 0; IjsJobId job_id; status = ijs_recv_int (&ctx->recv_chan, &job_id); if (status < 0) return status; if (!ctx->in_job || job_id != ctx->job_id) status = IJS_EJOBID; else if (ctx->buf == NULL) status = IJS_EPROTO; if (!status) status = ijs_recv_int (&ctx->recv_chan, &size); #ifdef VERBOSE fprintf (stderr, "status=%d, send data block id=%d, size=%d\n", status, job_id, size); #endif if (status) return ijs_server_nak (ctx, status); if (size <= ctx->buf_size - ctx->buf_ix) { status = ijs_server_read_data (ctx, ctx->buf + ctx->buf_ix, size); ctx->buf_ix += size; } else { ctx->overflow_buf_size = size - (ctx->buf_size - ctx->buf_ix); ctx->overflow_buf = (char *)malloc (ctx->overflow_buf_size); ctx->overflow_buf_ix = 0; status = ijs_server_read_data (ctx, ctx->buf + ctx->buf_ix, ctx->buf_size - ctx->buf_ix); ctx->buf_ix = ctx->buf_size; if (!status) { status = ijs_server_read_data (ctx, ctx->overflow_buf, ctx->overflow_buf_size); } } return ijs_server_ack (ctx); } static int ijs_server_proc_end_page (IjsServerCtx *ctx) { #ifdef VERBOSE fprintf (stderr, "end page\n"); #endif return ijs_server_ack (ctx); } static int ijs_server_proc_exit (IjsServerCtx *ctx) { return 1; } ijs_server_proc ijs_server_procs[] = { ijs_server_proc_ack, ijs_server_proc_nak, ijs_server_proc_ping, ijs_server_proc_pong, ijs_server_proc_open, ijs_server_proc_close, ijs_server_proc_begin_job, ijs_server_proc_end_job, ijs_server_proc_cancel_job, ijs_server_proc_query_status, ijs_server_proc_list_params, ijs_server_proc_enum_param, ijs_server_proc_set_param, ijs_server_proc_get_param, ijs_server_proc_begin_page, ijs_server_proc_send_data_block, ijs_server_proc_end_page, ijs_server_proc_exit }; int ijs_server_iter (IjsServerCtx *ctx) { int cmd_num; int status; status = ijs_recv_buf (&ctx->recv_chan); if (status < 0) return status; cmd_num = ijs_get_int (ctx->recv_chan.buf); #ifdef VERBOSE fprintf (stderr, "command %d, %d bytes\n", cmd_num, ctx->recv_chan.buf_size); #endif if (cmd_num < 0 || cmd_num >= (int)sizeof(ijs_server_procs) / sizeof(ijs_server_procs[0])) return -1; return ijs_server_procs[cmd_num] (ctx); } /** * ijs_server_get_page_header: Get the page header. * @ctx: The server context. * @ph: Where to store the page header. * * Return value: 0 on success, 1 on normal exit, negative on error. **/ int ijs_server_get_page_header (IjsServerCtx *ctx, IjsPageHeader *ph) { int status; ctx->ph = ph; ctx->in_page = FALSE; do { status = ijs_server_iter (ctx); } while (status == 0 && !ctx->in_page); ctx->ph = NULL; return status; } /** * ijs_server_get_data: Get data from client. * @ctx: The server context. * @buf: Buffer for data being read. * @size: Size of buf. * * Gets data from client. Data is stored in @buf or the * overflow_buf. * * Return value: Number of bytes read, -1 on end of page, or < 0 on * error. **/ int ijs_server_get_data (IjsServerCtx *ctx, char *buf, int size) { int buf_ix = 0; int status = 0; #ifdef VERBOSE fprintf (stderr, "ijs_server_get_data %d\n", size); #endif if (ctx->overflow_buf != NULL) { int n_bytes = ctx->overflow_buf_size - ctx->overflow_buf_ix; if (n_bytes > size) n_bytes = size; memcpy (buf, ctx->overflow_buf + ctx->overflow_buf_ix, n_bytes); ctx->overflow_buf_ix += n_bytes; buf_ix = n_bytes; if (ctx->overflow_buf_ix == ctx->overflow_buf_size) { free (ctx->overflow_buf); ctx->overflow_buf = NULL; ctx->overflow_buf_size = 0; ctx->overflow_buf_ix = 0; } } ctx->buf = buf; ctx->buf_size = size; ctx->buf_ix = buf_ix; while (!status && ctx->buf_ix < size) { status = ijs_server_iter (ctx); } ctx->buf = NULL; return status; } um_param, key_size = %d\n", key_size); #endif code = ctx->enum_cb (ctx->enum_cb_data, ctx, job_id, key, buf, sizeof(buf)); if (code < 0) return ijs_server_nak (ctx, code); else { int status; status = ijs_send_begin (&ctx->send_chan, IJS_CMD_ACK); if (status < 0) return status; status = ijs_send_block (&ctx->send_chan, buf, code); if (status < 0) return status; return ijs_send_buf (&ctx->send_chan); } } static int ijs_strnle/usr/akumar/alt/devel/gs/ijs/ijs_server.h 644 0 0 4526 11241503077 17426ustar00akumarakumar#ifdef __cplusplus extern "C" { #endif typedef struct _IjsServerCtx IjsServerCtx; typedef struct { int n_chan; /* number of channels */ int bps; /* bits per sample, one of 1, 2, 4, 8, 16 */ char cs[256]; /* color space, as string */ int width; /* in pixels */ int height; double xres; /* in dpi */ double yres; } IjsPageHeader; /* callbacks, lots of callbacks */ typedef int IjsBeginJobCb (void *begin_cb_data, IjsServerCtx *ctx, IjsJobId job_id); typedef int IjsEndJobCb (void *end_cb_data, IjsServerCtx *ctx, IjsJobId job_id); typedef int IjsQueryStatusCb (void *status_cb_data, IjsServerCtx *ctx, IjsJobId job_id); typedef int IjsListParamsCb (void *list_cb_data, IjsServerCtx *ctx, IjsJobId job_id, char *val_buf, int val_size); typedef int IjsEnumParamCb (void *enum_cb_data, IjsServerCtx *ctx, IjsJobId job_id, const char *key, char *val_buf, int val_size); typedef int IjsSetParamCb (void *set_cb_data, IjsServerCtx *ctx, IjsJobId job_id, const char *key, const char *value, int value_size); typedef int IjsGetParamCb (void *get_cb_data, IjsServerCtx *ctx, IjsJobId job_id, const char *key, char *val_buf, int val_size); IjsServerCtx * ijs_server_init (void); int ijs_server_install_begin_cb (IjsServerCtx *ctx, IjsBeginJobCb *begin_cb, void *begin_cb_data); int ijs_server_install_end_cb (IjsServerCtx *ctx, IjsEndJobCb *end_cb, void *end_cb_data); int ijs_server_install_status_cb (IjsServerCtx *ctx, IjsQueryStatusCb *status_cb, void *status_cb_data); int ijs_server_install_list_cb (IjsServerCtx *ctx, IjsListParamsCb *list_cb, void *list_cb_data); int ijs_server_install_enum_cb (IjsServerCtx *ctx, IjsEnumParamCb *enum_cb, void *enum_cb_data); int ijs_server_install_set_cb (IjsServerCtx *ctx, IjsSetParamCb *set_cb, void *set_cb_data); int ijs_server_install_get_cb (IjsServerCtx *ctx, IjsGetParamCb *get_cb, void *get_cb_data); void ijs_server_done (IjsServerCtx *ctx); int ijs_server_iter (IjsServerCtx *ctx); int ijs_server_get_page_header (IjsServerCtx *ctx, IjsPageHeader *ph); int ijs_server_get_data (IjsServerCtx *ctx, char *buf, int size); #ifdef __cplusplus } #endif key_size, value_size; IjsJobId job_id; int param_size; int code; code = ijs_recv_int (&ctx->recv_chan, &job_id); if (code < 0) return code; if (!ctx->in/usr/akumar/alt/devel/gs/ijs/ijs_server_example.c 644 0 0 24652 11241503077 21156ustar00akumarakumar#include #include #include #include #include "ijs.h" #include "ijs_server.h" #define BUF_SIZE 4096 typedef struct _ExampleParamList ExampleParamList; struct _ExampleParamList { ExampleParamList *next; char *key; char *value; int value_size; }; static int example_status_cb (void *status_cb_data, IjsServerCtx *ctx, IjsJobId job_id) { return 0; } static int example_list_cb (void *list_cb_data, IjsServerCtx *ctx, IjsJobId job_id, char *val_buf, int val_size) { const char *param_list = "OutputFile,DeviceManufacturer,DeviceModel,PageImageFormat,Dpi,Width,Height,BitsPerSample,ColorSpace,NumChan,PaperSize,PrintableArea,PrintableTopLeft,TopLeft"; int size = strlen (param_list); fprintf (stderr, "example_list_cb\n"); if (size > val_size) return IJS_EBUF; memcpy (val_buf, param_list, size); return size; } static int example_enum_cb (void *enum_cb_data, IjsServerCtx *ctx, IjsJobId job_id, const char *key, char *val_buf, int val_size) { const char *val = NULL; if (!strcmp (key, "ColorSpace")) val = "DeviceRGB,DeviceGray,DeviceCMYK"; else if (!strcmp (key, "DeviceManufacturer")) val = "IJS Distribution"; else if (!strcmp (key, "DeviceModel")) val = "ijs_server_example"; else if (!strcmp (key, "PageImageFormat")) val = "Raster"; if (val == NULL) return IJS_EUNKPARAM; else { int size = strlen (val); if (size > val_size) return IJS_EBUF; memcpy (val_buf, val, size); return size; } } /* A C implementation of /^(\d\.+\-eE)+x(\d\.+\-eE)+$/ */ static int example_parse_wxh (const char *val, int size, double *pw, double *ph) { char buf[256]; char *tail; int i; for (i = 0; i < size; i++) if (val[i] == 'x') break; if (i + 1 >= size) return IJS_ESYNTAX; if (i >= sizeof(buf)) return IJS_EBUF; memcpy (buf, val, i); buf[i] = 0; *pw = strtod (buf, &tail); if (tail == buf) return IJS_ESYNTAX; if (size - i > sizeof(buf)) return IJS_EBUF; memcpy (buf, val + i + 1, size - i - 1); buf[size - i - 1] = 0; *ph = strtod (buf, &tail); if (tail == buf) return IJS_ESYNTAX; return 0; } /** * example_find_key: Search parameter list for key. * * @key: key to look up * * Return value: ExampleParamList entry matching @key, or NULL. **/ static ExampleParamList * example_find_key (ExampleParamList *pl, const char *key) { ExampleParamList *curs; for (curs = pl; curs != NULL; curs = curs->next) { if (!strcmp (curs->key, key)) return curs; } return NULL; } /** * @printable: An array in which to store the printable area. * * On return, @printable = PrintableArea[0:1] + TopLeft[0:1] **/ static int example_compute_printable (ExampleParamList *pl, double printable[4]) { ExampleParamList *curs; double width, height; int code; double margin = 0.5; curs = example_find_key (pl, "PaperSize"); if (curs == NULL) return -1; code = example_parse_wxh (curs->value, curs->value_size, &width, &height); if (code == 0) { printable[0] = width - 2 * margin; printable[1] = height - 2 * margin; printable[2] = margin; printable[3] = margin; } return code; } static int example_compute_offset (ExampleParamList *pl, IjsPageHeader *ph, double *px0, double *py0) { ExampleParamList *curs; double width, height; double top, left; int code; *px0 = 0; *py0 = 0; curs = example_find_key (pl, "PaperSize"); if (curs == NULL) return -1; code = example_parse_wxh (curs->value, curs->value_size, &width, &height); if (code == 0) { curs = example_find_key (pl, "TopLeft"); if (curs != NULL) { code = example_parse_wxh (curs->value, curs->value_size, &top, &left); } else { double printable[4]; code = example_compute_printable (pl, printable); if (code == 0) { top = printable[2]; left = printable[3]; } } } if (code == 0) { *px0 = left; *py0 = height - ph->height / ph->yres - top; } return code; } static int example_get_cb (void *get_cb_data, IjsServerCtx *ctx, IjsJobId job_id, const char *key, char *val_buf, int val_size) { ExampleParamList *pl = *(ExampleParamList **)get_cb_data; ExampleParamList *curs; const char *val; char buf[256]; int code; fprintf (stderr, "example_get_cb: %s\n", key); curs = example_find_key (pl, key); if (curs != NULL) { if (curs->value_size > val_size) return IJS_EBUF; memcpy (val_buf, curs->value, curs->value_size); return curs->value_size; } if (!strcmp (key, "PrintableArea") || !strcmp (key, "PrintableTopLeft")) { double printable[4]; int off = !strcmp (key, "PrintableArea") ? 0 : 2; code = example_compute_printable (pl, printable); if (code == 0) { sprintf (buf, "%gx%g", printable[off + 0], printable[off + 1]); val = buf; } } if (!strcmp (key, "DeviceManufacturer")) val = "IJS Distribution"; else if (!strcmp (key, "DeviceModel")) val = "ijs_server_example"; else if (!strcmp (key, "PageImageFormat")) val = "Raster"; if (val == NULL) return IJS_EUNKPARAM; else { int size = strlen (val); if (size > val_size) return IJS_EBUF; memcpy (val_buf, val, size); return size; } } static int example_set_cb (void *set_cb_data, IjsServerCtx *ctx, IjsJobId job_id, const char *key, const char *value, int value_size) { ExampleParamList **ppl = (ExampleParamList **)set_cb_data; ExampleParamList *pl; int key_len = strlen (key); int code; fprintf (stderr, "example_set_cb: %s=", key); if (!strcmp (key, "PaperSize")) { double width, height; code = example_parse_wxh (value, value_size, &width, &height); if (code < 0) return code; } fwrite (value, 1, value_size, stderr); fputs ("\n", stderr); pl = example_find_key (*ppl, key); if (pl == NULL) { pl = (ExampleParamList *)malloc (sizeof (ExampleParamList)); pl->next = *ppl; pl->key = malloc (key_len + 1); memcpy (pl->key, key, key_len + 1); *ppl = pl; } else { free (pl->value); } pl->value = malloc (value_size); memcpy (pl->value, value, value_size); pl->value_size = value_size; return 0; } /** * Finds a parameter in the param list, and allocates a null terminated * string with the value. **/ static char * find_param (ExampleParamList *pl, const char *key) { ExampleParamList *curs; char *result; curs = example_find_key (pl, key); if (curs == NULL) return NULL; result = malloc (curs->value_size + 1); memcpy (result, curs->value, curs->value_size); result[curs->value_size] = 0; return result; } static void free_param_list (ExampleParamList *pl) { ExampleParamList *next; for (; pl != NULL; pl = next) { next = pl->next; free (pl->key); free (pl->value); free (pl); } } int main (int argc, char **argv) { IjsServerCtx *ctx; IjsPageHeader ph; int status; char buf[BUF_SIZE]; char hexbuf[BUF_SIZE * 3]; char *fn; FILE *f = NULL; double xscale, yscale; double x0, y0; ExampleParamList *pl = NULL; ctx = ijs_server_init (); if (ctx == NULL) return (1); ijs_server_install_status_cb (ctx, example_status_cb, &pl); ijs_server_install_list_cb (ctx, example_list_cb, &pl); ijs_server_install_enum_cb (ctx, example_enum_cb, &pl); ijs_server_install_set_cb (ctx, example_set_cb, &pl); ijs_server_install_get_cb (ctx, example_get_cb, &pl); do { int total_bytes, bytes_left; ExampleParamList *curs; status = ijs_server_get_page_header (ctx, &ph); if (status) break; fprintf (stderr, "got page header, %d x %d\n", ph.width, ph.height); if (f == NULL) { fn = find_param (pl, "OutputFile"); /* todo: check error! */ if (fn == NULL) { fn = find_param (pl, "OutputFD"); if (fn != NULL) { f = fdopen (atoi (fn), "w"); } } else { f = fopen (fn, "w"); } if (f == NULL) { fprintf (stderr, "can't open output file %s\n", fn); fclose (stdin); fclose (stdout); break; } if (fn != NULL) free (fn); } fprintf (f, "%%!PS-Adobe-2.0\n"); example_compute_offset (pl, &ph, &x0, &y0); xscale = 72.0 / ph.xres; yscale = 72.0 / ph.yres; fprintf (f, "%%%%BoundingBox: %d %d %d %d\n", (int)(x0 * 72), (int)(y0 * 72), (int)(x0 * 72 + xscale * ph.width + 0.999), (int)(y0 * 72 + yscale * ph.height + 0.999)); fprintf (f, "/rhex { currentfile exch readhexstring pop } bind def\n"); fprintf (f, "/picstr %d string def\n", ph.width); for (curs = pl; curs != NULL; curs = curs->next) { fprintf (f, "%% IJS parameter: %s = ", curs->key); fwrite (curs->value, 1, curs->value_size, f); fputs ("\n", f); } fprintf (f, "gsave\n" "%f %f translate\n" "%f %f scale\n" "%d %d %d\n" "[ %d 0 0 %d 0 %d ]\n", x0 * 72, y0 * 72, xscale * ph.width, yscale * ph.height, ph.width, ph.height, ph.bps, ph.width, -ph.height, ph.height); if (ph.n_chan == 1) fprintf (f, "{ picstr rhex } image\n"); else { fprintf (f, "{ picstr rhex }\n" "false %d colorimage\n", ph.n_chan); } total_bytes = ((ph.n_chan * ph.bps * ph.width + 7) >> 3) * ph.height; bytes_left = total_bytes; while (bytes_left) { int n_bytes = bytes_left; int i, j; if (n_bytes > sizeof(buf)) n_bytes = sizeof(buf); #ifdef VERBOSE fprintf (stderr, "%d bytes left, reading %d\n", bytes_left, n_bytes); #endif status = ijs_server_get_data (ctx, buf, n_bytes); if (status) { fprintf (stderr, "page aborted!\n"); break; } j = 0; for (i = 0; i < n_bytes; i++) { const char hex[16] = "0123456789AbCdEf"; unsigned char c = ((unsigned char *)buf)[i]; hexbuf[j++] = hex[c >> 4]; hexbuf[j++] = hex[c & 0xf]; if ((i & 31) == 31) hexbuf[j++] = '\n'; } if ((n_bytes & 31) != 0) hexbuf[j++] = '\n'; fwrite (hexbuf, 1, j, f); bytes_left -= n_bytes; } fprintf (f, "grestore\nshowpage\n"); } while (status == 0); if (status > 0) status = 0; /* normal exit */ if (f) fclose (f); ijs_server_done (ctx); free_param_list (pl); #ifdef VERBOSE 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IJS Protocol Specification Version 0.32 — 17 Jan 2002 Raph Levien This document contains a specification for the IJS protocol, which is intended to make it easier to deploy raster-based printer drivers in a wide variety of environments, including Unix desktops. Introduction IJS is, first and foremost, a protocol for transmission of raster page images. The protocol is a fairly traditional client-server design. In general, the client sends one or more page images to the server, along with various metadata. Communication is through simple “commands”, which are essentially size-prefixed packets. The client sends a command to the server, then waits for a response command, either ACK or NAK. Since, in the typical IJS scenario, there is only one client for any given server, it may be helpful to denote the client role as "master" and the server role as "slave". However, this document uses the terms "client" and "server". On Unix systems, the server “speaks” IJS through stdin and stdout. One consequence of this design decision is that the server can be invoked remotely, for example through ssh. It's not clear yet how useful this will be, but at least people can experiment with it. Other forms of communication (such as domain sockets) may be useful, as well, but are not specified in this version. There are also a large number of things that the IJS specification does not address. It does not provide strings for a UI (although the parameter names and values may be used as a fallback when higher-level mechanisms designed to provide these fail). It does not address the task of discovering printers or drivers. It is not designed to dispatch jobs to multiple printers. It does not provide queue management features. It does not address higher level imaging models, or fonts. These are important components of a printing system, and should be addressed by other modules and interfaces. Wire protocol After a brief initialization handshake, all IJS communication occurs through commands. Most of these are sent from the client to the server, but three (IJS_CMD_PONG, IJS_CMD_ACK, and IJS_CMD_NAK) are sent from the server to the client. With the exception of IJS_CMD_PING, the appropriate response to a command sent from the server is either IJS_CMD_ACK or IJS_CMD_NAK. The initialization handshake is as follows. First, the client sends the string "IJS\n\252v1\n" (with C backslash escaping). Upon receipt of this string, the server sends the string "IJS\n\253v1\n". At this point, the client may send IJS commands to the server. IJS is designed to have a simple wire encoding. Integers are encoded as 32-bit big-endian (ie “network order”) values. The encoding for a command is as follows: Wire Encoding of IJS Commands Command4-byte integerSize in bytes4-byte integerArguments...
The arguments are simply concatenated. For variable size arguments, the size is either explicitly given as another argument, or, in the case of the last argument, is inferred from the size of the command. A wire encoding for a typical command is given below. This command sets the Dpi parameter to 600. Example Wire Encoding Encoded bytes Field Value 00 00 00 0c Command IJS_COMMAND_SET_PARAM00 00 00 16 Size in bytes 2200 00 00 00 Job id 000 00 00 03 Size of parameter name 3 44 70 69 Parameter name Dpi 36 30 30 Value 600
The numerical values of the commands are: Numerical Values of IJS Commands Command Value IJS_CMD_ACK 0IJS_CMD_NAK 1IJS_CMD_PING 2IJS_CMD_PONG 3IJS_CMD_OPEN 4IJS_CMD_CLOSE 5IJS_CMD_BEGIN_JOB 6IJS_CMD_END_JOB 7IJS_CMD_CANCEL_JOB 8IJS_CMD_QUERY_STATUS 9IJS_CMD_LIST_PARAMS 10IJS_CMD_ENUM_PARAM 11IJS_CMD_SET_PARAM 12IJS_CMD_GET_PARAM 13IJS_CMD_BEGIN_PAGE 14IJS_CMD_SEND_DATA_BLOCK 15IJS_CMD_END_PAGE 16IJS_CMD_EXIT 17
A state transition diagram for servers supporting a maximum of one active job at a time is given below: IJS_CMD_ACK This command is sent from server to the client in response to a command from the client, to indicate successful completion. There are no arguments specific to this command. However, for commands (such as IJS_CMD_GET_PARAM) which request a value, this value is returned as the argument in an ACK command. IJS_CMD_NAK This command is sent from server to the client in response to a command from the client, to indicate an error. There is one integer argument, which is the error code. A list of error codes is given in . IJS_CMD_PING The PING command is sent from the client to the server as part of the connection setup. It contains one integer argument, which is the 100 times the real-valued version number of the largest IJS protocol understood by the client. Thus, for the version of the protocol described in this document, the argument is 30. The appropriate response to a PING is a PONG. IJS_CMD_PONG The PONG command is sent from the server to the client in response to the PING command. It contains one integer argument, which is 100 times the largest IJS version number understood by the server. After a PING/PONG handshake, both client and server should use the minimum of the two version numbers. This negotiation mechanism preserves the ability to make deep changes in future version of the protocol, while preserving backwards compatibility for both clients and servers. IJS_CMD_OPEN The client should send an OPEN command to the server to indicate that printing is imminent. The server can allocate resources, such as tables, at this time. IJS_CMD_CLOSE The client should send a CLOSE command to the server to indicate that printing is complete for now. The server can free any allocated resources at this time. There should not be any jobs open at the time of the CLOSE command. Handling of any such jobs is undefined. IJS_CMD_BEGIN_JOB The client should send a BEGIN_JOB to the server to begin a job. There is one integer argument, a job id. This id is allocated by the client, and jobs are uniquely identified by the (client, job id) tuple. This job id is present as an argument for all the commands which operate within the context of a job. This job id is valid until the corresponding END_JOB command is invoked, at which point it can be reused if desired. The connection must be in an open state to begin a job, ie an OPEN command must have been sent, without a corresponding CLOSE. Servers can choose whether or not to implement multiple jobs, depending on their sophistication. When the number of jobs supported is exceeded, the server should return an IJS_ETOOMANYJOBS error code. IJS_CMD_END_JOB The client should send an END_JOB command to the server on the completion of a job. The one argument is the job id. This command cannot be used in the middle of a page, i.e. when a BEGIN_PAGE command has been issued without its corresponding END_PAGE. IJS_CMD_CANCEL_JOB This command cancels a job. The one argument is the job id. This command can be used whether or not a page is open. IJS_CMD_QUERY_STATUS This command queries the status of a job, or general printer status within a job context. The one argument is the job id. The return data is the printer status. The format of the printer status is yet to be determined. Glen Petrie has made a proposal on the inkjet-list mailing list. Michael Sweet has suggested adopting the IPP status codes. That standard is fairly rich in status queries. There appear to be at least four queries related to this IJS command: printer-state (enum), printer-state-reasons (keyword), printer-state-message (text), printer-is-accepting-jobs (boolean). IJS_CMD_LIST_PARAMS This command queries the server for a complete list of parameters. Note that this list may change dynamically, in response to setting various parameters, or external events. The argument is the job id. The return value is a comma-separated list of parameters. IJS_CMD_ENUM_PARAM This command queries the possible values for a given parameter. The arguments are the job id and the name of the parameter. The return value is a comma-separated list of values, with the default given first. Some parameters may not have a small finite enumeration. In these cases, the server should report IJS_ERANGE. Note also that the comma-separated encoding does not provide a way to report values containing commas. Thus, these should be avoided. IJS_CMD_SET_PARAM This command sets a parameter. There are four arguments: the job id, the size of the parameter name (in bytes), the parameter name, and the value. The size of the value is inferred from the size of the command. If the parameter is unknown, the server returns an IJS_EUNKPARAM error. If the parameter is known but the value is not appropriate, the server returns an IJS_ERANGE error. IJS_CMD_GET_PARAM This command retrieves the current value of a parameter. There are two arguments: the job id and the parameter name. The value of the parameter is returned. If the parameter is unknown, the server returns an IJS_EUNKPARAM error. IJS_CMD_BEGIN_PAGE This command begins a new page. All of the parameters affecting the data format of the page should have already been set by this time. IJS_CMD_SEND_DATA_BLOCK This command sends a block of data, in the format defined by PageImageLanguage and its subsidiary parameters. There are no alignment restrictions. There are two arguments: the job id, and the size of the data block in bytes. The data block follows the command, in the same stream. Note that shared-memory transport of bulk data is anticipated in a future version of this standard. Pipe transport will still be used as a fallback in case shared-memory transport is unavailable. The server must be in the middle of a page (ie BEGIN_PAGE without the corresponding END_PAGE) when this command is issued. IJS_CMD_END_PAGE This command ends a page. The server must be in the middle of a page when this command is issued. The argument is the job id. IJS_CMD_EXIT This command signals the end of the IJS connection. In the typical case of a server with a single client, the server process terminates upon receipt of this command. The connection must be in a closed state at the time of this command. Need to look into race condition. Parameters IJS defines a small set of standard parameters, which all clients and servers are expected to understand. Individual implementations may extend this standard set with additional parameters specific to the device or driver. Clients should, in general, provide some mechanism for setting (and possibly querying) arbitrary additional parameters. In particular, command line clients should accept command line options to set additional parameters. Interactive clients should ideally query the server for a list of these parameters to display in the interface, then query each parameter for the list of possible values, presented as menu choices. In addition, in many scenarios, the client may have additional information specific to the device, obtained through other means, for example a PPD (or PPD-like) file specified by the user. Such file formats are well beyond the scope of this specification. However, many users may find the simple parameter mechanism of IJS to be sufficient for their needs. A particular strength of the IJS parameter mechanism is that no additional effort is required to handle dynamic capability information, for example the presence of a hot-pluggable duplexer. Often, one parameter will be subsidiary to another. In this case, the subsidiary parameter should be set, gotten, or enumerated after the other parameter is set. Standard parameters This section describes the standard parameters specified by IJS. OutputFile This parameter is the filename intended for IJS output. It will often refer to a device, but can also be a regular file. Note that this parameter should be considered security-sensitive. Clients should take care to ensure that it is set only to legitimate values. OutputFD This is an alternative to OutputFile, and is intended to support -sOutputFile=- and -sOutputFile="|cmd" configurations of Ghostscript. The parameter is a numeric file descriptor. DeviceManufacturer This parameter is the manufacturer of the printer. In general, it should match the "MANUFACTURER" (or "MFR") field of the IEEE 1284 Device ID string exactlyIEEE1284. There are many different scenarios for setting and querying this parameter, depending on what information is known about the device. In the case where the server is able to identify the device, for example by retrieving the IEEE 1284 Device ID string, or through the GET_DEVICE_ID request of the USB Printer ClassUSBPrint, getting the value of the parameter will retrieve this identification string. In general, the server should perform the device ID query at the time of the GET_PARAM command. In the case where the device identification is configured by the client, the client may set this parameter, then set the DeviceModel parameter. Finally, enumerating this parameter returns a list of manufacturers known by the server. This may be helpful for installing a new printer in cases where automatic device identification is not available. There may be cases where the server is able to automatically identify the device, and the client attempts to override this identification. The server should allow this override to occur, particularly when the device ID is not one known to the server. However, the server can reject such attempts by returning an IJS_ERANGE error. DeviceModel This parameter is the model name of the printer, and together with DeviceManufacturer, identifies the device. In general it should match the "MODEL" (or "MDL") field of the IEEE 1284 Device ID string. Usage scenarios are similar to DeviceManufacturer. This parameter is subsidiary to DeviceManufacturer. Setting the device manufacturer and model may have profound effects on the list of other parameters available. For example, the server may in fact be a wrapper that invokes the “real” server once the device id is known, and then proxies all IJS commands subsequently. Thus, all other parameters other than OutputFD, OutputFile, and DeviceManufacturer, should be considered subsidiary to this one. PageImageFormat This parameter specifies the format of the page image data to be sent to the printer. This standard only defines one standard value: "Raster". Other values, including compressed raster formats, as well as possibly higher level page description languages such as PostScript and PDF, are envisioned as possible future extensions. When it makes sense, names consistent with the "COMMAND SET" (or "CMD") field of the IEEE 1284 Device ID string are recommended. However, this namespace has many shortcomings for use with IJS. In particular, it tends to identify the command set too vaguely. For example, many Epson printers report merely "ESCPL2", which is not nearly precise enough to usefully drive the printer. When the value is "Raster", the following parameters are required, and are subsidiary to this one: Dpi, Width, Height, BitsPerSample, ColorSpace, and NumChan. Dpi This parameter is the resolution for transfer of raster data. It is specified as a horizontal resolution, in floating decimal dpi units, an "x", and a vertical resolution, in floating decimal dpi units. Thus, a typical value is "1440x720". Note that the server may perform scaling of the raster data as part of its processing, before sending it to the device. In these cases, the Dpi parameter specifies the resolution prior to scaling. For example, a driver might accept 720 dpi raster data, then perform 2:1 horizontal pixel replication to drive the actual device at 1440x720 dpi. In this example, the value of the Dpi parameter is "720x720". Width This parameter is the decimal encoded width of the raster image, in pixels. It MUST be set when PageImageFormat is Raster. Height This parameter is the decimal encoded height of the raster image, in pixels. It MUST be set for raster images. BitsPerSample This parameter is the decimal encoded bit depth of samples for pixel values. It MUST be set for raster images. Valid values include 1-7 (implying client-side dithering of image pixels), 8, and 16 (both implying server-side dithering if needed by the device). In general, the total number of bits per pixel is equal to BitsPerSample times NumChan. In many cases, querying this parameter will be useful. A “dumb” server may choose not to implement color transform and dithering, leaving these to the client. In this case, the result of the query operation will be a list of bit depths actually supported by the device. Simple devices may report "1", while devices capable of both bilevel and 4-level variable dots may report "1,2". Note that not all combinations of BitsPerSample and ColorSpace are valid. In particular, BitsPerSample less than 8 in combination with a ColorSpace of sRGB or any other colorimetric color space are not valid. Also for scRGB (also known as sRGB64), 16 is the only valid value. When the value is 16, the ByteSex parameter is required, and is subsidiary to this one. ByteSex When BitsPerSample is equal to 16, this parameter specifies the byte sex of the raster data. Possible values are "big-endian" and "little-endian". Enumerating this parameter should list the preferred byte sex as the default (ie first in the comma-separated list). In most cases, this will be the byte sex of the server's host architecture. Servers limited to 8 bits of depth need not implement this parameter at all. ColorSpace This parameter is a string identifying the color space of the raster image data. It MUST be set for raster images. Standard values include "DeviceGray", "DeviceRGB", "DeviceCMYK", and "sRGB". Servers should support at least one of these color spaces. Clients should be able to produce raster output if at least one of these color spaces is supported by the server. I think we should have a wide-gamut colorimetric color space in the standard list as well. I like La*b* with a recommended bit depth of 16. Any objections? A device may choose to provide more color spaces. For example, 6 color inkjets may provide a "DeviceCcMmYK" space. In general, for a client to use any of these nonstandard spaces requires detailed knowledge of the color rendering characteristics of the device. Servers should not provide additional color spaces which are merely transforms of the standard color spaces. Examples of such discouraged color spaces are HSV, XYZ, Luv, Yuv, YCC, and colorimetric RGB spaces other than sRGB (TODO: unless we decide to accept scRGB/sRGB64). NumChan This parameter is the number of channels in the chosen color space. In general, it can be determined from the ColorSpace. In particular, DeviceGray implies 1, DeviceRGB and sRGB imply 3, and DeviceCMYK implies 4. Attempting to set a NumChan inconsistent with ColorSpace should result in an error. PaperSize This parameter is in W.WWxH.HH format, in inches, i.e. a string that may be produced by sprintf (str, "%fx%f", width, height). If the server knows the paper size (which is unlikely for inkjets), then getting the parameter will give a good value. In the more common case, get simply returns an error code (todo: probably need to allocate a new one for this). Enumerating this parameter may give a list of paper sizes known by the driver that are plausible for the device. The result of getting or enumerating PaperSize may change dynamically depending on the DeviceModel, Duplex, and possibly “extension” parameters such as those for selecting trays. Note that this parameter is essentially the same as the PageSize page device parameter. The main difference is units (PostScript uses 1/72" inch units), and the minor syntax nit of PostScript array encoding. PrintableArea This parameter is in W.WWxH.HH format, and describes the printable area of the page. It is expected that the client will usually get it from the server. Any attempt to set it is allowed to fail with an error, even if it's the same value as the get. The value may change dynamically depending on PaperSize and other parameters. PrintableTopLeft This parameter is in W.WWxH.HH format, and contains the left and top margins of the printable area with respect to the media. It is the companion to PrintableArea (I'm considering having a single parameter that ASCII encodes the four floats). TopLeft This parameter, in W.WWxH.HH is intended to be set, and controls the placement of the raster image on the page. The corresponding size of the raster image area can be inferred from the Width, Height, and Dpi parameters. PostScript Page Device Parameters PostScript defines a number of page device parameters, many of which are relevant to IJS, whether using PostScript or not. Further, many proposals for characterizing device capabilities are based on PPD files, which use a consistent namespace and semantics to page device parameters. IJS imports the namespace of PostScript page device parameters, prefixing it with the string "PS:". The client can assume that any parameters returned by a LIST_PARAMS command matching this prefix are in fact PostScript page device parameters. Values are straightforward ASCII encodings. For example, arrays are encoded as space-separated values, enclosed in square brackets. The set of valid page device parameters is defined in the PostScript Language Reference ManualPLRM, particularly Chapter 6. Some page device parameters are subsumed by native IJS parameters, and should not be used. These include PageSize (subsumed by PaperSize), ProcessColorModel (subsumed by ColorSpace), Margins and PageOffset (subsumed by TopLeft), and HWResolution (subsumed by Dpi). Devices supporting duplexing should implement PS:Duplex and PS:Tumble, both booleans. A value of true for PS:Duplex requests printing on both sides of the page. When PS:Duplex is true, PS:Tumble specifies the relative orientation of the pages. When PS:Tumble is false, the pages are oriented suitably at the left or right. When PS:Tumble is true, the pages are oriented suitably for binding at the top or bottom. Enumerating the PS:Duplex parameter should return a single "false" value when the server knows that the device is not capable of duplexing, and either "false,true" or "true,false" if it may be. Note that the HPIJS 1.0 implementation of IJS, identifying itself as IJS version 0.29, specifies an integer-valued Duplex parameter, with values of 0 (PS:Duplex = false, PS:Tumble don't care), 1 (PS:Duplex = true, PS:Tumble = false), and 2 (PS:Duplex = true, PS:Tumble = true). An integer valued Duplex parameter is inconsistent with the PostScript specification. However, clients desiring compatibility should set the integer-valued Duplex parameter rather than the PS: parameters when the server reports a version of 0.29. Devices supporting roll-fed media should implement PS:RollFedMedia, PS:Orientation, PS:AdvanceMedia, PS:AdvanceDistance (note that units are integer 1/72"), and PS:CutMedia. Other parameters that may be useful for some devices include PS:MediaColor, PS:MediaWeight, PS:MediaType, PS:MediaClass, PS:InsertSheet, PS:LeadingEdge, PS:ManualFeed, PS:TraySwitch, PS:MediaPosition, PS:ImageShift, PS:MirrorPrint, PS:NegativePrint, PS:NumCopies, PS:Collate, PS:Jog, PS:OutputFaceUp, PS:Separations, and PS:SeparationColorNames. Other parameters are allowed, but are unlikely to be useful in an IJS context. Parameter Namespace Extension While this document specifies enough parameters to be able to print usefully, there is a huge diversity of devices and applications, often indicating additional parameters not specified. IJS is designed to accomodate these additional parameters as extensions. It is expected that the namespace of these extensions will be managed informally. Note that collisions in this namespace are not necessarily fatal, as many will be device or manufacturer specific, so that the device id may be used to disentangle them. Even so, it is clearly a good idea to manage this namespace well. This section recommends some practices towards this goal. When possible, extension parameters should be prefixed, with a colon separating the prefix from the base parameter name. Well known prefixes give clients useful information about parameters, even when the client lacks information about the specific parameter. An unknown prefix at least allows the client to identify the parameter as a nonstandard extension. This document specifies a number of standard prefixes. We also reserve the following prefixes for possible use in future revisions of this protocol: IPP, UPDF. Further, the Omni: prefix is reserved for the Omni group at IBM, and CUPS: is reserved for the CUPS project. Robert, do you want STP:? Anyone else? Quality: Inkjet printers often provide a rich set of options for tuning output quality, or selecting a point along a speed/quality tradeoff. The details of these options vary widely from device to device. When made available through IJS, they should be grouped under the Quality: prefix. For example, HPIJS 1.0 has the following parameters, for HP inkjet printers: Quality, MediaType, ColorMode, and PenSet. To be compliant with versions 0.30 and later of IJS, they should be named Quality:Quality, Quality:MediaType, Quality:ColorMode, and Quality:PenSet. Note that Quality:MediaType overlaps somewhat with PS:MediaType. In general, the former specifies a color profile or printing mode (for example, to optimize printing on transparencies). The latter is often used for selecting a paper source, for example letterhead or envelopes. The former is more likely to be useful in inkjet applications. The Dpi and ColorSpace parameters are subsidiary to any Quality: parameters provided. Finishing: Finishing options, such as stapling and collating, should be grouped under the Finishing prefix. The PS page device parameter namespace includes some finishing options, including Duplex, Tumble, Collate, Jog, and the roll-fed parameters: RollFedMedia, Orientation, AdvanceMedia, AdvanceDistance, and CutMedia. For these parameters, the PS: prefix is preferred. The PPD specification describes a number of additional finishing parameters (section 5.18 of PPD). Where possible, Finishing: parameters should be consistent with the PPD specification. PPD: The PPD specificationPPD contains a large number of options and parameters that may be provided by printers. The PPD: prefix is reserved for PPD parameters that are made available through the IJS protocol. In cases where both a page device parameter and a PPD parameter specify the same setting, the PS: page device parameter takes priority. In many cases, page device parameters are advantageous because they are designed for both getting and setting, while PPD itself is a static file format. In addition, finishing parameters should be under the Finishing: namespace. In general, use of the PPD: extension is not recommended, as the PPD file format tends to be specific to PostScript printers. We could use more specific advice on when to use PPD: parameters, and when not to. Anyone with more PPD knowledge willing to help with this? Error codes Any IJS command may either succeed or fail. Success is indicated by an IJS_ACK response. Failure is indicated by an IJS_NAK response, which includes an integer error code. The current draft contains the following error codes: Draft IJS Error Codes Symbolic definition Numeric value Meaning IJS_EIO -2 I/O errorIJS_EPROTO -3 protocol errorIJS_ERANGE -4 out of rangeIJS_EINTERNAL -5 internal errorIJS_ENYI -6 not yet implementedIJS_ESYNTAX -7 syntax errorIJS_ECOLORSPACE -8 unknown color spaceIJS_EUNKPARAM -9 unknown parameterIJS_EJOBID -10 job id doesn't matchIJS_ETOOMANYJOBS -11 reached limit of server's #jobsIJS_EBUF -12 buffer isn't big enough
However, I see that this list overlaps the status codes for IPP operations (section 13.2 of RFC 2911) to a large extent. I am strongly considering unifying these. Acknowledgements IJS is directly inspired by the HPIJS work done by the HP Vancouver team, particularly David Suffield. This spec also benefited from comments and suggestions from Robert Krawitz, Grant Taylor, Glen Petrie, Russell Lang, Michael Sweet, and the Omni team at IBM: Mark VanderWiele, Mark Hamzy, and Pete Zannucci. Please add your name here. Incidentally, the <ackno> tag of DocBook seems more reasonable than a section, but I can't get it to format with a nice title. References RFC 2911 T. Hastings R. Herriot R. deBry S. Isaacson P. Powell Internet Printing Protocol/1.1: Model and Semantics September 2000 IEEE1284 IEEE Std.1284-1994 Standard Signaling Method for a Bi-directional Parallel Peripheral Interface for Personal Computers 1994 USBPrint Universal Serial Bus Device Class Definition for Printing Devices 1.1 January 2000 PLRM PostScript Language Reference third edition Adobe Systems Incorporated Addison-Wesley 1999 PPD PostScript Printer Description File Format version 4.3 Adobe Systems Incorporated Technical Note 5003 9 February 1996
Some page device parameters are subsumed by native IJS parameters, and should not be used. These include PageSize (subsumed by PaperSize), ProcessColorModel (subsumed by ColorSpace), Margins and PageOffset (subsumed by TopLeft), a/usr/akumar/alt/devel/gs/ijs/install-sh 755 0 0 12736 11241503077 17130ustar00akumarakumar#!/bin/sh # # install - install a program, script, or datafile # This comes from X11R5 (mit/util/scripts/install.sh). # # Copyright 1991 by the Massachusetts Institute of Technology # # Permission to use, copy, modify, distribute, and sell this software and its # documentation for any purpose is hereby granted without fee, provided that # the above copyright notice appear in all copies and that both that # copyright notice and this permission notice appear in supporting # documentation, and that the name of M.I.T. not be used in advertising or # publicity pertaining to distribution of the software without specific, # written prior permission. M.I.T. makes no representations about the # suitability of this software for any purpose. It is provided "as is" # without express or implied warranty. # # Calling this script install-sh is preferred over install.sh, to prevent # `make' implicit rules from creating a file called install from it # when there is no Makefile. # # This script is compatible with the BSD install script, but was written # from scratch. It can only install one file at a time, a restriction # shared with many OS's install programs. # set DOITPROG to echo to test this script # Don't use :- since 4.3BSD and earlier shells don't like it. doit="${DOITPROG-}" # put in absolute paths if you don't have them in your path; or use env. vars. mvprog="${MVPROG-mv}" cpprog="${CPPROG-cp}" chmodprog="${CHMODPROG-chmod}" chownprog="${CHOWNPROG-chown}" chgrpprog="${CHGRPPROG-chgrp}" stripprog="${STRIPPROG-strip}" rmprog="${RMPROG-rm}" mkdirprog="${MKDIRPROG-mkdir}" transformbasename="" transform_arg="" instcmd="$mvprog" chmodcmd="$chmodprog 0755" chowncmd="" chgrpcmd="" stripcmd="" rmcmd="$rmprog -f" mvcmd="$mvprog" src="" dst="" dir_arg="" while [ x"$1" != x ]; do case $1 in -c) instcmd="$cpprog" shift continue;; -d) dir_arg=true shift continue;; -m) chmodcmd="$chmodprog $2" shift shift continue;; -o) chowncmd="$chownprog $2" shift shift continue;; -g) chgrpcmd="$chgrpprog $2" shift shift continue;; -s) stripcmd="$stripprog" shift continue;; -t=*) transformarg=`echo $1 | sed 's/-t=//'` shift continue;; -b=*) transformbasename=`echo $1 | sed 's/-b=//'` shift continue;; *) if [ x"$src" = x ] then src=$1 else # this colon is to work around a 386BSD /bin/sh bug : dst=$1 fi shift continue;; esac done if [ x"$src" = x ] then echo "install: no input file specified" exit 1 else true fi if [ x"$dir_arg" != x ]; then dst=$src src="" if [ -d $dst ]; then instcmd=: chmodcmd="" else instcmd=mkdir fi else # Waiting for this to be detected by the "$instcmd $src $dsttmp" command # might cause directories to be created, which would be especially bad # if $src (and thus $dsttmp) contains '*'. if [ -f $src -o -d $src ] then true else echo "install: $src does not exist" exit 1 fi if [ x"$dst" = x ] then echo "install: no destination specified" exit 1 else true fi # If destination is a directory, append the input filename; if your system # does not like double slashes in filenames, you may need to add some logic if [ -d $dst ] then dst="$dst"/`basename $src` else true fi fi ## this sed command emulates the dirname command dstdir=`echo $dst | sed -e 's,[^/]*$,,;s,/$,,;s,^$,.,'` # Make sure that the destination directory exists. # this part is taken from Noah Friedman's mkinstalldirs script # Skip lots of stat calls in the usual case. if [ ! -d "$dstdir" ]; then defaultIFS=' ' IFS="${IFS-${defaultIFS}}" oIFS="${IFS}" # Some sh's can't handle IFS=/ for some reason. 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If we want to # ignore errors from any of these, just make sure not to ignore # errors from the above "$doit $instcmd $src $dsttmp" command. if [ x"$chowncmd" != x ]; then $doit $chowncmd $dsttmp; else true;fi && if [ x"$chgrpcmd" != x ]; then $doit $chgrpcmd $dsttmp; else true;fi && if [ x"$stripcmd" != x ]; then $doit $stripcmd $dsttmp; else true;fi && if [ x"$chmodcmd" != x ]; then $doit $chmodcmd $dsttmp; else true;fi && # Now rename the file to the real destination. $doit $rmcmd -f $dstdir/$dstfile && $doit $mvcmd $dsttmp $dstdir/$dstfile fi && exit 0 ail. 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then ac_cv_prog_CC="$CC" # Let the user override the test. else IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS=":" ac_dummy="$PATH" for ac_dir in $ac_dummy; do test -z "$ac_dir" && ac_dir=. if test -f $ac_dir/$ac_word; then ac_cv_prog_CC="cl" break fi done IFS="$ac_save_ifs" fi fi CC="$ac_cv_prog_CC" if test -n "$CC"; then echo "$ac_t""$CC" 1>&6 else echo "$ac_t""no" 1>&6 fi ;; esac fi test -z "$CC" && { echo "configure: error: no acceptable cc found in \$PATH" 1>&2; exit 1; } fi echo $ac_n "checking whether the C compiler ($CC $CFLAGS $LDFLAGS) works""... $ac_c" 1>&6 echo "configure:643: checking whether the C compiler ($CC $CFLAGS $LDFLAGS) works" >&5 ac_ext=c # CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options. ac_cpp='$CPP $CPPFLAGS' ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5' ac_link='${CC-cc} -o conftest${ac_exeext} $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5' cross_compiling=$ac_cv_prog_cc_cross cat > conftest.$ac_ext << EOF #line 654 "configure" #include "confdefs.h" main(){return(0);} EOF if { (eval echo configure:659: \"$ac_link\") 1>&5; 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ac_word=$2 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6 echo "configure:752: checking for $ac_word" >&5 if eval "test \"`echo '$''{'ac_cv_prog_RANLIB'+set}'`\" = set"; then echo $ac_n "(cached) $ac_c" 1>&6 else if test -n "$RANLIB"; then ac_cv_prog_RANLIB="$RANLIB" # Let the user override the test. else IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS=":" ac_dummy="$PATH" for ac_dir in $ac_dummy; do test -z "$ac_dir" && ac_dir=. if test -f $ac_dir/$ac_word; then ac_cv_prog_RANLIB="ranlib" break fi done IFS="$ac_save_ifs" test -z "$ac_cv_prog_RANLIB" && ac_cv_prog_RANLIB=":" fi fi RANLIB="$ac_cv_prog_RANLIB" if test -n "$RANLIB"; then echo "$ac_t""$RANLIB" 1>&6 else echo "$ac_t""no" 1>&6 fi ac_aux_dir= for ac_dir in $srcdir $srcdir/.. $srcdir/../..; do if test -f $ac_dir/install-sh; then ac_aux_dir=$ac_dir ac_install_sh="$ac_aux_dir/install-sh -c" break elif test -f $ac_dir/install.sh; then ac_aux_dir=$ac_dir ac_install_sh="$ac_aux_dir/install.sh -c" break fi done if test -z "$ac_aux_dir"; 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All rights reserved. # # This software is provided AS-IS with no warranty, either express or # implied. # # This software is distributed under license and may not be copied, # modified or distributed except as expressly authorized under the terms # of the license contained in the file LICENSE in this distribution. # # For more information about licensing, please refer to # http://www.ghostscript.com/licensing/. For information on # commercial licensing, go to http://www.artifex.com/licensing/ or # contact Artifex Software, Inc., 101 Lucas Valley Road #110, # San Rafael, CA 94903, U.S.A., +1(415)492-9861. # # $Id: unixansi.mak,v 1.41 2005/08/31 05:52:32 ray Exp $ # makefile for Unix/ANSI C/X11 configuration. # ------------------------------- Options ------------------------------- # ####### The following are the only parts of the file you should need to edit. # Define the directory for the final executable, and the # source, generated intermediate file, and object directories # for the graphics library (GL) and the PostScript/PDF interpreter (PS). BINDIR=./bin GLSRCDIR=./src GLGENDIR=./obj GLOBJDIR=./obj PSSRCDIR=./src PSLIBDIR=./lib PSGENDIR=./obj PSOBJDIR=./obj # Do not edit the next group of lines. #include $(COMMONDIR)/ansidefs.mak #include $(COMMONDIR)/unixdefs.mak #include $(COMMONDIR)/generic.mak include src/version.mak DD=$(GLGENDIR)/ GLD=$(GLGENDIR)/ PSD=$(PSGENDIR)/ # ------ Generic options ------ # # Define the installation commands and target directories for # executables and files. The commands are only relevant to `make install'; # the directories also define the default search path for the # initialization files (gs_*.ps) and the fonts. INSTALL = $(GLSRCDIR)/instcopy -c INSTALL_PROGRAM = $(INSTALL) -m 755 INSTALL_DATA = $(INSTALL) -m 644 prefix = /usr/local exec_prefix = $(prefix) bindir = $(exec_prefix)/bin scriptdir = $(bindir) mandir = $(prefix)/man man1ext = 1 datadir = $(prefix)/share gsdir = $(datadir)/ghostscript gsdatadir=/sys/src/cmd/gs docdir=$(gsdatadir)/doc exdir=$(gsdatadir)/examples GS_DOCDIR=$(docdir) # Define the default directory/ies for the runtime initialization, resource and # font files. Separate multiple directories with a :. GS_LIB_DEFAULT=/sys/lib/ghostscript:/sys/lib/ghostscript/font:/sys/lib/postscript/font # Define whether or not searching for initialization files should always # look in the current directory first. This leads to well-known security # and confusion problems, but users insist on it. # NOTE: this also affects searching for files named on the command line: # see the "File searching" section of Use.htm for full details. # Because of this, setting SEARCH_HERE_FIRST to 0 is not recommended. SEARCH_HERE_FIRST=1 # Define the name of the interpreter initialization file. # (There is no reason to change this.) GS_INIT=gs_init.ps # Choose generic configuration options. # -DDEBUG # includes debugging features (-Z switch) in the code. # Code runs substantially slower even if no debugging switches # are set. # -DNOPRIVATE # makes private (static) procedures and variables public, # so they are visible to the debugger and profiler. # No execution time or space penalty. GENOPT= # Define the name of the executable file. GS=gs # Define the name of a pre-built executable that can be invoked at build # time. Currently, this is only needed for compiled fonts. The usual # alternatives are: # - the standard name of Ghostscript on your system (typically `gs'): BUILD_TIME_GS=gs # - the name of the executable you are building now. If you choose this # option, then you must build the executable first without compiled fonts, # and then again with compiled fonts. #BUILD_TIME_GS=$(BINDIR)/$(GS) -I$(PSLIBDIR) # Define the directories for debugging and profiling binaries, relative to # the standard binaries. DEBUGRELDIR=../debugobj PGRELDIR=../pgobj # Define the directory where the IJG JPEG library sources are stored, # and the major version of the library that is stored there. # You may need to change this if the IJG library version changes. # See jpeg.mak for more information. JSRCDIR=jpeg JVERSION=6 # Note: if a shared library is used, it may not contain the # D_MAX_BLOCKS_IN_MCU patch, and thus may not be able to read # some older JPEG streams that violate the standard. If the JPEG # library built from local sources, the patch will be applied. SHARE_JPEG=0 JPEG_NAME=jpeg # Define the directory where the PNG library sources are stored, # and the version of the library that is stored there. # You may need to change this if the libpng version changes. # See libpng.mak for more information. PSRCDIR=libpng PVERSION=10208 # Choose whether to use a shared version of the PNG library, and if so, # what its name is. # See gs.mak and Make.htm for more information. SHARE_LIBPNG=0 LIBPNG_NAME=png # Define the directory where the zlib sources are stored. # See zlib.mak for more information. ZSRCDIR=zlib # Choose whether to use a shared version of the zlib library, and if so, # what its name is (usually libz, but sometimes libgz). # See gs.mak and Make.htm for more information. SHARE_ZLIB=0 #ZLIB_NAME=gz ZLIB_NAME=z # Choose shared or compiled in libjbig2dec and source location SHARE_JBIG2=0 JBIG2SRCDIR=jbig2dec # Define the directory where the icclib source are stored. # See icclib.mak for more information ICCSRCDIR=icclib # Define the directory where the ijs source is stored, # and the process forking method to use for the server. # See ijs.mak for more information. IJSSRCDIR=ijs IJSEXECTYPE=unix # Define how to build the library archives. (These are not used in any # standard configuration.) AR=ar ARFLAGS=qc RANLIB=ranlib # ------ Platform-specific options ------ # # Define the name of the C compiler. If the standard compiler for your # platform is ANSI-compatible, leave this line commented out; if not, # uncomment the line and insert the proper definition. #CC=some_C_compiler # Define the name of the linker for the final link step. # Normally this is the same as the C compiler. CCLD=$(CC) # Define the added flags for standard, debugging, and profiling builds. CFLAGS_STANDARD= CFLAGS_DEBUG=-g CFLAGS_PROFILE=-pg -O # Define the other compilation flags. Add at most one of the following: # -Aa -w -D_HPUX_SOURCE for the HP 400. # -DBSD4_2 for 4.2bsd systems. # -DSYSV for System V or DG/UX. # -DSVR4 -DSVR4_0 (not -DSYSV) for System V release 4.0. # -DSVR4 (not -DSYSV) for System V release 4.2 (or later) and Solaris 2. # XCFLAGS can be set from the command line. XCFLAGS=-D_BSD_EXTENSION -DPlan9 CFLAGS=$(CFLAGS_STANDARD) $(XCFLAGS) # Define platform flags for ld. # SunOS and some others want -X; Ultrix wants -x. # SunOS 4.n may need -Bstatic. # Solaris 2.6 (and possibly some other versions) with any of the SHARE_ # parameters set to 1 may need # -R /usr/local/xxx/lib:/usr/local/lib # giving the full path names of the shared library directories. # Apollos running DomainOS don't support -X (and -x has no effect). # XLDFLAGS can be set from the command line. XLDFLAGS= LDFLAGS=$(XLDFLAGS) # Define any extra libraries to link into the executable. # ISC Unix 2.2 wants -linet. # SCO Unix needs -lsocket if you aren't including the X11 driver. # SVR4 may need -lnsl. # Solaris may need -lnsl -lsocket -lposix4. # (Libraries required by individual drivers are handled automatically.) EXTRALIBS= # Define the standard libraries to search at the end of linking. # Most platforms require -lpthread for the POSIX threads library; # on FreeBSD, change -lpthread to -lc_r; BSDI and perhaps some others # include pthreads in libc and don't require any additional library. # All reasonable platforms require -lm, but Rhapsody and perhaps one or # two others fold libm into libc and don't require any additional library. #STDLIBS=-lpthread -lm # Since the default build is for nosync, don't include pthread lib STDLIBS=-lm # Define the include switch(es) for the X11 header files. # This can be null if handled in some other way (e.g., the files are # in /usr/include, or the directory is supplied by an environment variable); # in particular, SCO Xenix, Unix, and ODT just want #XINCLUDE= # Note that x_.h expects to find the header files in $(XINCLUDE)/X11, # not in $(XINCLUDE). XINCLUDE=-I/usr/X11R6/include # Define the directory/ies and library names for the X11 library files. # XLIBDIRS is for ld and should include -L; XLIBDIR is for LD_RUN_PATH # (dynamic libraries on SVR4) and should not include -L. # Newer SVR4 systems can use -R in XLIBDIRS rather than setting XLIBDIR. # Both can be null if these files are in the default linker search path; # in particular, SCO Xenix, Unix, and ODT just want #XLIBDIRS= # Solaris and other SVR4 systems with dynamic linking probably want #XLIBDIRS=-L/usr/openwin/lib -R/usr/openwin/lib # X11R6 (on any platform) may need #XLIBS=Xt SM ICE Xext X11 XLIBDIRS=-L/usr/X11R6/lib XLIBDIR= XLIBS=Xt Xext X11 # Define whether this platform has floating point hardware: # FPU_TYPE=2 means floating point is faster than fixed point. # (This is the case on some RISCs with multiple instruction dispatch.) # FPU_TYPE=1 means floating point is at worst only slightly slower # than fixed point. # FPU_TYPE=0 means that floating point may be considerably slower. # FPU_TYPE=-1 means that floating point is always much slower than # fixed point. FPU_TYPE=1 # Define the .dev module that implements thread and synchronization # primitives for this platform. Don't change this unless you really know # what you're doing. # If POSIX sync primitives are used, also change the STDLIBS to include # the pthread library. #SYNC=posync # Default is No sync primitives since some platforms don't have it (HP-UX) SYNC=nosync # ------ Devices and features ------ # # Choose the language feature(s) to include. See gs.mak for details. FEATURE_DEVS=$(PSD)psl3.dev $(PSD)pdf.dev $(PSD)dpsnext.dev $(PSD)ttfont.dev $(PSD)epsf.dev $(GLD)pipe.dev $(PSD)fapi.dev # Choose whether to compile the .ps initialization files into the executable. # See gs.mak for details. COMPILE_INITS=0 # Choose whether to store band lists on files or in memory. # The choices are 'file' or 'memory'. BAND_LIST_STORAGE=file # Choose which compression method to use when storing band lists in memory. # The choices are 'lzw' or 'zlib'. BAND_LIST_COMPRESSOR=zlib # Choose the implementation of file I/O: 'stdio', 'fd', or 'both'. # See gs.mak and sfxfd.c for more details. FILE_IMPLEMENTATION=stdio # Choose the implementation of stdio: '' for file I/O and 'c' for callouts # See gs.mak and ziodevs.c/ziodevsc.c for more details. STDIO_IMPLEMENTATION=c # Choose the device(s) to include. See devs.mak for details, # devs.mak and contrib.mak for the list of available devices. DEVICE_DEVS=$(DD)plan9.dev $(DD)bj10e.dev $(DD)bjc600.dev $(DD)bjc800.dev $(DD)cdj1600.dev $(DD)cdj670.dev $(DD)cdj850.dev $(DD)cdj890.dev $(DD)dfaxlow.dev $(DD)epswrite.dev $(DD)inferno.dev $(DD)jpeg.dev $(DD)jpeggray.dev $(DD)laserjet.dev $(DD)ljet2p.dev $(DD)ljet3.dev $(DD)ljet3d.dev $(DD)ljet4.dev $(DD)ijs.dev $(DD)pbm.dev $(DD)pbmraw.dev $(DD)pdfwrite.dev $(DD)pgm.dev $(DD)pgmraw.dev $(DD)plan9bm.dev $(DD)pnm.dev $(DD)pnmraw.dev $(DD)ppm.dev $(DD)ppmraw.dev $(DD)pswrite.dev $(DD)stcolor.dev $(DD)tiffg32d.dev $(DD)tiffg3.dev $(DD)tiffg4.dev DEVICE_DEVS1= DEVICE_DEVS2= DEVICE_DEVS3= DEVICE_DEVS4= DEVICE_DEVS5= DEVICE_DEVS6= DEVICE_DEVS7= DEVICE_DEVS8= DEVICE_DEVS9= DEVICE_DEVS10= DEVICE_DEVS11= DEVICE_DEVS12= DEVICE_DEVS13= DEVICE_DEVS14= DEVICE_DEVS15= DEVICE_DEVS16= # Overflow from DEVS9 DEVICE_DEVS17= DEVICE_DEVS18= DEVICE_DEVS19= DEVICE_DEVS20= # ---------------------------- End of options --------------------------- # # Define the name of the partial makefile that specifies options -- # used in dependencies. MAKEFILE=$(GLSRCDIR)/unixansi.mak TOP_MAKEFILES=$(MAKEFILE) $(GLSRCDIR)/unixhead.mak # Define the auxilary program dependency. AK= # Define the compilation rules and flags. # If you system has a 64 bit type you should pass it through # CCFLAGS to improve support for multiple colorants. e.g.: # -DGX_COLOR_INDEX_TYPE='unsigned long long' # or use the autoconf build, which sets this automatically. # If you do not define a 64 bit type, there may be some warnings # about oversize shifts. It's a bug if these are not harmless. CCFLAGS=$(GENOPT) $(CFLAGS) CC_=$(CC) $(CCFLAGS) CCAUX=$(CC) CC_NO_WARN=$(CC_) # ---------------- End of platform-specific section ---------------- # include src/unixhead.mak include src/gs.mak include src/lib.mak include src/int.mak include src/cfonts.mak include src/jpeg.mak # zlib.mak must precede libpng.mak include src/zlib.mak include src/libpng.mak include src/jbig2.mak include src/icclib.mak include src/ijs.mak include src/devs.mak include src/contrib.mak include src/plan9-aux.mak include src/unixlink.mak include src/unix-end.mak include src/unixinst.mak # platform-specific clean-up # this makefile is intended to be hand edited so we don't distribute # the (presumedly modified) version in the top level directory distclean : clean config-clean -$(RM) Makefile maintainer-clean : distclean # nothing special to do # Contributed drivers not found in the current distribution # We reinsert them whenever we download a new distribution. ### ------------------------- Plan 9 bitmaps -------------------------- ### ### Note: this driver was contributed by a user: please contact ### ### Russ Cox if you have questions. ### plan9_=$(GLOBJ)gdevplan9.$(OBJ) $(DD)plan9.dev : $(plan9_) $(DD)page.dev $(SETPDEV) $(DD)plan9 $(plan9_) $(GLOBJ)gdevplan9.$(OBJ) : $(GLSRC)gdevplan9.c $(PDEVH) $(gsparam_h) $(gxlum_h) $(GLCC) $(GLO_)gdevplan9.$(OBJ) $(C_) $(GLSRC)gdevplan9.c ### -------------- cdj850 - HP 850c Driver under development ------------- ### ### For questions about this driver, please contact: ### ### Uli Wortmann (uliw@erdw.ethz.ch) ### cdeskjet8_=$(GLOBJ)gdevcd8.$(OBJ) $(HPPCL) $(DD)cdj850.dev : $(cdeskjet8_) $(DD)page.dev $(SETPDEV2) $(DD)cdj850 $(cdeskjet8_) $(DD)cdj670.dev : $(cdeskjet8_) $(DD)page.dev $(SETPDEV2) $(DD)cdj670 $(cdeskjet8_) $(DD)cdj890.dev : $(cdeskjet8_) $(DD)page.dev $(SETPDEV2) $(DD)cdj890 $(cdeskjet8_) $(DD)cdj1600.dev : $(cdeskjet8_) $(DD)page.dev $(SETPDEV2) $(DD)cdj1600 $(cdeskjet8_) $(GLOBJ)gdevcd8.$(OBJ) : $(GLSRC)gdevcd8.c $(PDEVH) $(math__h)\ $(gsparam_h) $(gxlum_h) $(gdevpcl_h) $(GLCC) $(GLO_)gdevcd8.$(OBJ) $(C_) $(GLSRC)gdevcd8.c local sources, the patch will be applied. SHARE_JPEG=0 JPEG_NAME=jpeg # Define the directory where the PNG library sources are stored, # and the version of the library that is stored there. # You may ne/usr/akumar/alt/devel/gs/mkfile 644 0 0 16726 11242411647 15536ustar00akumarakumar# # This Plan 9 mkfile is for ``easy'' building. # It worked for Ghostscript 8.53. # # This mkfile consists of two parts: the first part builds the gs executable, # the second unpacks the gs distribution and sets configuration parameters. # # Place this mkfile in the root directory of the gs distribution (the gsX.XX dir) # Edit the drivers list below, and mk fake-make to let gs configure # itself. Fake-make doesn't actually build very much. # # Then you can run mk normally. # # Be sure to have the jpeg, libpng, and zlib subdirectories before starting. # These have been included in recent gs tar files so we do not maintain # our own anymore. # # Each time you change the drivers list you must rerun mk fake-make # before building. # # If you want to try out a new GS distribution, you should be able # to mk try-X.XX, test it out, and then do mk install-X.XX, where X.XX # is the version number (e.g. 5.70). If outside BL, you may have to edit the # scripts to remove some local dependencies (e.g. calling outside and the # cpu call to thresher, alpha to make mips.h, alpha.h). # # Recent versions of src/gxshade1.c cause the compiler to run out # of registers. Brucee is looking into this. In the meantime, use this # replacement: # # private inline void # make_other_poles(patch_curve_t curve[4]) # { # int i, j; # # for (i = 0; i < 4; i++) { # j = (i + 1) % 4; # curve[i].control[0].x = (curve[i].vertex.p.x * 2 + curve[j].vertex.p.x); # curve[i].control[0].x /= 3; # curve[i].control[0].y = (curve[i].vertex.p.y * 2 + curve[j].vertex.p.y); # curve[i].control[0].y /= 3; # curve[i].control[1].x = (curve[i].vertex.p.x + curve[j].vertex.p.x * 2); # curve[i].control[1].y /= 3; # curve[i].control[1].y = (curve[i].vertex.p.y + curve[j].vertex.p.y * 2); # curve[i].control[1].y /= 3; # curve[i].straight = true; # } # } # # (the original includes the /3 in the big expressions). # # src/gxshade6.c also needs editing to remove use of the # vlong , operator on some architectures. # # you may need to change this line in gs/src/gshtscr.c: # // sample = (int) (value * max_ht_sample) + max_ht_sample; # to # sample = (vlong)(value * max_ht_sample) + max_ht_sample; [2] /dev/null | sort} # The first driver is the default. DRIVERS=\ plan9\ bj10e\ bjc600\ bjc800\ cdj1600\ cdj670\ cdj850\ cdj890\ dfaxlow\ epswrite\ inferno\ jpeg\ jpeggray\ laserjet\ ljet2p\ ljet3\ ljet3d\ ljet4\ ijs\ pbm\ pbmraw\ pdfwrite\ pgm\ pgmraw\ plan9bm\ pnm\ pnmraw\ ppm\ ppmraw\ pswrite\ stcolor\ tiffg32d\ tiffg3\ tiffg4\ HFILES=$objtype.h\ arch.h\ # enforce some startup conditions x=`{mkdir obj >[2]/dev/null; mv jpeg/jmorecfg.h jpeg/jmorecfg.h.save >[2] /dev/null} $target chmod +x $target src/plan9.mak: src/unixansi.mak /sys/src/cmd/gs/contrib9.mak devlist='$(DD)'^$DRIVERS^'.dev' devlist=$"devlist sed 's#^GS_LIB_DEFAULT=.*#GS_LIB_DEFAULT=/sys/lib/ghostscript:/sys/lib/ghostscript/font:/sys/lib/postscript/font# s#^XCFLAGS=.*#XCFLAGS=-D_BSD_EXTENSION -DPlan9# s#^CFLAGS_STANDARD=.*#CFLAGS_STANDARD=# s#^include \$\(.*\)/(.*)#include src/\1# s#unix-aux.mak#plan9-aux.mak# s#gsdatadir *=.*#gsdatadir=/sys/src/cmd/gs# s#DEVICE_DEVS=.*#DEVICE_DEVS='$devlist'# s#(DEVICE_DEVS[0-9]+)=.*#\1=#' $prereq >$target src/plan9-aux.mak: src/unix-aux.mak sed 's#^INCLUDE=.*#INCLUDE=/sys/include/ape#' $prereq >$target try-%:V: gs%/$O.out bind gs$stem/$O.out /bin/gs bind -b gs$stem/lib /sys/lib/ghostscript echo 'give it a whirl' gs([0-9]+\.[0-9]+)/$O.out:R: gs\1/src @{ cd gs$stem1 # for(i in jpeg zlib libpng) # bind -c ../$i $i if(! test -f src/ld.tr) mk fake-make cp ../arch.h . rm -f obj/*.c mk $O.out # for(i in jpeg zlib libpng) # unmount $i || status='' } gs%/src: ghostscript-%.tar.gz rm -rf gs$stem gunzip < ghostscript-$stem.tar.gz | tar x mv ghostscript-$stem gs$stem chmod g+w gs$stem/* gs$stem/*/* # local drivers cp src/gdevifno.c src/gdevplan9.c src/gdevcd8.c gs$stem/src # local conventions ed gs$stem/lib/gs_init.ps gs$stem/mkfile cp default.*.h gs$stem @{cd gs$stem; mk startover} ghostscript-%.tar.gz: #outside #hget -o $target http://download.sourceforge.net/ghostscript/$target hget -o $target ftp://mirror.cs.wisc.edu/pub/mirrors/ghost/AFPL/gs^`{echo $stem | sed 's/\.//'}^/$target #ftpfs -a $user^'@' ftp.cs.wisc.edu #cp /n/ftp/ghost/aladdin/*/ghostscript-$stem.tar.gz . startover:V: rm -rf obj/* rm -f src/ld.tr rm -f src/plan9.mak src/plan9-aux.mak install-%:V: unmount /bin/gs || status='' unmount /sys/lib/ghostscript || status='' mk installsrc-$stem cpu -h thresher -c 'mk mips.h' || status='' cpu -h alpha -c 'mk alpha.h' || status='' mk all mk installall for(i in lib/*.ps) if(! cmp $i /sys/lib/ghostscript/^`{basename $i} >/dev/null) cp $i /sys/lib/ghostscript cp /sys/lib/ghostscript/pdf_sec-ps.bak /sys/lib/ghostscript/pdf_sec.ps installsrc-%:V: gs%/$O.out pwd=`{pwd} # don't accidentally do this from gsX.XX if(! ~ $pwd */gs) echo 'i don''t think you meant to do that' && exit oops tocopy=(doc examples icclib lib man obj src zlib jpeg libpng) if(! cmp src/version.mak gs$stem/src/version.mak) { rm -rf $tocopy @{cd gs$stem; tar c $tocopy} | tar xT mk clean } status='' clean-%:V: for (i in gs$stem/*) unmount $i >[2]/dev/null || status='' rm -rf gs$stem ghostscript-$stem.tar.gz nclude src/libpng.mak include src/jbig2.ma