X-Git-Url: https://code.delx.au/gnu-emacs/blobdiff_plain/2b7e8799bb9d0ff310d203a78e31acb1af12f1a3..8d34b5e125667e8264c83120307b97c47c88c108:/src/callproc.c diff --git a/src/callproc.c b/src/callproc.c index b23a0bb48e..47930819c0 100644 --- a/src/callproc.c +++ b/src/callproc.c @@ -1,5 +1,6 @@ /* Synchronous subprocess invocation for GNU Emacs. - Copyright (C) 1985, 86,87,88,93,94,95, 1999 Free Software Foundation, Inc. + Copyright (C) 1985, 1986, 1987, 1988, 1993, 1994, 1995, 1999, 2000, 2001, + 2002, 2003, 2004, 2005 Free Software Foundation, Inc. This file is part of GNU Emacs. @@ -15,8 +16,8 @@ GNU General Public License for more details. You should have received a copy of the GNU General Public License along with GNU Emacs; see the file COPYING. If not, write to -the Free Software Foundation, Inc., 59 Temple Place - Suite 330, -Boston, MA 02111-1307, USA. */ +the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, +Boston, MA 02110-1301, USA. */ #include @@ -24,7 +25,9 @@ Boston, MA 02111-1307, USA. */ #include #include +#ifndef USE_CRT_DLL extern int errno; +#endif /* Define SIGCHLD as an alias for SIGCLD. */ @@ -39,7 +42,7 @@ extern int errno; #endif #include -#ifdef USG5 +#ifdef HAVE_FCNTL_H #define INCLUDED_FCNTL #include #endif @@ -75,10 +78,12 @@ extern int errno; #include "charset.h" #include "ccl.h" #include "coding.h" +#include "composite.h" #include #include "process.h" #include "syssignal.h" #include "systty.h" +#include "blockinput.h" #ifdef MSDOS #include "msdos.h" @@ -87,19 +92,21 @@ extern int errno; #ifdef VMS extern noshare char **environ; #else +#ifndef USE_CRT_DLL extern char **environ; #endif +#endif #ifdef HAVE_SETPGID #if !defined (USG) || defined (BSD_PGRPS) +#undef setpgrp #define setpgrp setpgid #endif #endif -#define max(a, b) ((a) > (b) ? (a) : (b)) - -Lisp_Object Vexec_path, Vexec_directory, Vdata_directory, Vdoc_directory; -Lisp_Object Vconfigure_info_directory; +Lisp_Object Vexec_path, Vexec_directory, Vexec_suffixes; +Lisp_Object Vdata_directory, Vdoc_directory; +Lisp_Object Vconfigure_info_directory, Vshared_game_score_directory; Lisp_Object Vtemp_file_name_pattern; Lisp_Object Vshell_file_name; @@ -117,13 +124,12 @@ int synch_process_alive; /* Nonzero => this is a string explaining death of synchronous subprocess. */ char *synch_process_death; +/* Nonzero => this is the signal number that terminated the subprocess. */ +int synch_process_termsig; + /* If synch_process_death is zero, this is exit code of synchronous subprocess. */ int synch_process_retcode; - -extern Lisp_Object Vdoc_file_name; - -extern Lisp_Object Vfile_name_coding_system, Vdefault_file_name_coding_system; /* Clean up when exiting Fcall_process. On MSDOS, delete the temporary file on any kind of termination. @@ -148,14 +154,14 @@ Lisp_Object call_process_cleanup (fdpid) Lisp_Object fdpid; { -#if defined (MSDOS) || defined (macintosh) +#if defined (MSDOS) || defined (MAC_OS8) /* for MSDOS fdpid is really (fd . tempfile) */ register Lisp_Object file; file = Fcdr (fdpid); emacs_close (XFASTINT (Fcar (fdpid))); - if (strcmp (XSTRING (file)-> data, NULL_DEVICE) != 0) - unlink (XSTRING (file)->data); -#else /* not MSDOS and not macintosh */ + if (strcmp (SDATA (file), NULL_DEVICE) != 0) + unlink (SDATA (file)); +#else /* not MSDOS and not MAC_OS8 */ register int pid = XFASTINT (Fcdr (fdpid)); if (call_process_exited) @@ -166,7 +172,7 @@ call_process_cleanup (fdpid) if (EMACS_KILLPG (pid, SIGINT) == 0) { - int count = specpdl_ptr - specpdl; + int count = SPECPDL_INDEX (); record_unwind_protect (call_process_kill, fdpid); message1 ("Waiting for process to die...(type C-g again to kill it instantly)"); immediate_quit = 1; @@ -183,39 +189,43 @@ call_process_cleanup (fdpid) } DEFUN ("call-process", Fcall_process, Scall_process, 1, MANY, 0, - "Call PROGRAM synchronously in separate process.\n\ -The remaining arguments are optional.\n\ -The program's input comes from file INFILE (nil means `/dev/null').\n\ -Insert output in BUFFER before point; t means current buffer;\n\ - nil for BUFFER means discard it; 0 means discard and don't wait.\n\ -BUFFER can also have the form (REAL-BUFFER STDERR-FILE); in that case,\n\ -REAL-BUFFER says what to do with standard output, as above,\n\ -while STDERR-FILE says what to do with standard error in the child.\n\ -STDERR-FILE may be nil (discard standard error output),\n\ -t (mix it with ordinary output), or a file name string.\n\ -\n\ -Fourth arg DISPLAY non-nil means redisplay buffer as output is inserted.\n\ -Remaining arguments are strings passed as command arguments to PROGRAM.\n\ -\n\ -If BUFFER is 0, `call-process' returns immediately with value nil.\n\ -Otherwise it waits for PROGRAM to terminate\n\ -and returns a numeric exit status or a signal description string.\n\ -If you quit, the process is killed with SIGINT, or SIGKILL if you quit again.") - (nargs, args) + doc: /* Call PROGRAM synchronously in separate process. +The remaining arguments are optional. +The program's input comes from file INFILE (nil means `/dev/null'). +Insert output in BUFFER before point; t means current buffer; + nil for BUFFER means discard it; 0 means discard and don't wait. +BUFFER can also have the form (REAL-BUFFER STDERR-FILE); in that case, +REAL-BUFFER says what to do with standard output, as above, +while STDERR-FILE says what to do with standard error in the child. +STDERR-FILE may be nil (discard standard error output), +t (mix it with ordinary output), or a file name string. + +Fourth arg DISPLAY non-nil means redisplay buffer as output is inserted. +Remaining arguments are strings passed as command arguments to PROGRAM. + +If BUFFER is 0, `call-process' returns immediately with value nil. +Otherwise it waits for PROGRAM to terminate +and returns a numeric exit status or a signal description string. +If you quit, the process is killed with SIGINT, or SIGKILL if you quit again. + +usage: (call-process PROGRAM &optional INFILE BUFFER DISPLAY &rest ARGS) */) + (nargs, args) int nargs; register Lisp_Object *args; { - Lisp_Object infile, buffer, current_dir, display, path; + Lisp_Object infile, buffer, current_dir, path; + int display_p; int fd[2]; int filefd; register int pid; - char buf[16384]; - char *bufptr = buf; - int bufsize = 16384; - int count = specpdl_ptr - specpdl; - - register unsigned char **new_argv - = (unsigned char **) alloca ((max (2, nargs - 2)) * sizeof (char *)); +#define CALLPROC_BUFFER_SIZE_MIN (16 * 1024) +#define CALLPROC_BUFFER_SIZE_MAX (4 * CALLPROC_BUFFER_SIZE_MIN) + char buf[CALLPROC_BUFFER_SIZE_MAX]; + int bufsize = CALLPROC_BUFFER_SIZE_MIN; + int count = SPECPDL_INDEX (); + + register const unsigned char **new_argv + = (const unsigned char **) alloca ((max (2, nargs - 2)) * sizeof (char *)); struct buffer *old = current_buffer; /* File to use for stderr in the child. t means use same as standard output. */ @@ -224,7 +234,7 @@ If you quit, the process is killed with SIGINT, or SIGKILL if you quit again.") char *outf, *tempfile; int outfilefd; #endif -#ifdef macintosh +#ifdef MAC_OS8 char *tempfile; int outfilefd; #endif @@ -239,13 +249,13 @@ If you quit, the process is killed with SIGINT, or SIGKILL if you quit again.") /* Qt denotes that Ffind_operation_coding_system is not yet called. */ coding_systems = Qt; - CHECK_STRING (args[0], 0); + CHECK_STRING (args[0]); error_file = Qt; #ifndef subprocesses /* Without asynchronous processes we cannot have BUFFER == 0. */ - if (nargs >= 3 + if (nargs >= 3 && (INTEGERP (CONSP (args[2]) ? XCAR (args[2]) : args[2]))) error ("Operating system cannot handle asynchronous subprocesses"); #endif /* subprocesses */ @@ -261,7 +271,7 @@ If you quit, the process is killed with SIGINT, or SIGKILL if you quit again.") int must_encode = 0; for (i = 4; i < nargs; i++) - CHECK_STRING (args[i], i); + CHECK_STRING (args[i]); for (i = 4; i < nargs; i++) if (STRING_MULTIBYTE (args[i])) @@ -291,7 +301,7 @@ If you quit, the process is killed with SIGINT, or SIGKILL if you quit again.") if (nargs >= 2 && ! NILP (args[1])) { infile = Fexpand_file_name (args[1], current_buffer->directory); - CHECK_STRING (infile, 1); + CHECK_STRING (infile); } else infile = build_string (NULL_DEVICE); @@ -327,11 +337,11 @@ If you quit, the process is killed with SIGINT, or SIGKILL if you quit again.") buffer = Fget_buffer_create (buffer); /* Mention the buffer name for a better error message. */ if (NILP (buffer)) - CHECK_BUFFER (spec_buffer, 2); - CHECK_BUFFER (buffer, 2); + CHECK_BUFFER (spec_buffer); + CHECK_BUFFER (buffer); } } - else + else buffer = Qnil; /* Make sure that the child will be able to chdir to the current @@ -361,9 +371,9 @@ If you quit, the process is killed with SIGINT, or SIGKILL if you quit again.") UNGCPRO; } - display = nargs >= 4 ? args[3] : Qnil; + display_p = INTERACTIVE && nargs >= 4 && !NILP (args[3]); - filefd = emacs_open (XSTRING (infile)->data, O_RDONLY, 0); + filefd = emacs_open (SDATA (infile), O_RDONLY, 0); if (filefd < 0) { report_file_error ("Opening process input file", Fcons (infile, Qnil)); @@ -373,7 +383,7 @@ If you quit, the process is killed with SIGINT, or SIGKILL if you quit again.") struct gcpro gcpro1; GCPRO1 (current_dir); - openp (Vexec_path, args[0], EXEC_SUFFIXES, &path, 1); + openp (Vexec_path, args[0], Vexec_suffixes, &path, make_number (X_OK)); UNGCPRO; } if (NILP (path)) @@ -381,7 +391,14 @@ If you quit, the process is killed with SIGINT, or SIGKILL if you quit again.") emacs_close (filefd); report_file_error ("Searching for program", Fcons (args[0], Qnil)); } - new_argv[0] = XSTRING (path)->data; + + /* If program file name starts with /: for quoting a magic name, + discard that. */ + if (SBYTES (path) > 2 && SREF (path, 0) == '/' + && SREF (path, 1) == ':') + path = Fsubstring (path, make_number (2), Qnil); + + new_argv[0] = SDATA (path); if (nargs > 4) { register int i; @@ -399,7 +416,7 @@ If you quit, the process is killed with SIGINT, or SIGKILL if you quit again.") if (argument_coding.type == coding_type_ccl) setup_ccl_program (&(argument_coding.spec.ccl.encoder), Qnil); } - new_argv[i - 3] = XSTRING (args[i])->data; + new_argv[i - 3] = SDATA (args[i]); } UNGCPRO; new_argv[nargs - 3] = 0; @@ -416,7 +433,7 @@ If you quit, the process is killed with SIGINT, or SIGKILL if you quit again.") *tempfile = '\0'; } dostounix_filename (tempfile); - if (*tempfile == '\0' || tempfile[strlen (tempfile) - 1] != '/') + if (*tempfile == '\0' || tempfile[strlen (tempfile) - 1] != '/') strcat (tempfile, "/"); strcat (tempfile, "detmp.XXX"); mktemp (tempfile); @@ -432,12 +449,12 @@ If you quit, the process is killed with SIGINT, or SIGKILL if you quit again.") fd[1] = outfilefd; #endif /* MSDOS */ -#ifdef macintosh +#ifdef MAC_OS8 /* Since we don't have pipes on the Mac, create a temporary file to hold the output of the subprocess. */ - tempfile = (char *) alloca (STRING_BYTES (XSTRING (Vtemp_file_name_pattern)) + 1); - bcopy (XSTRING (Vtemp_file_name_pattern)->data, tempfile, - STRING_BYTES (XSTRING (Vtemp_file_name_pattern)) + 1); + tempfile = (char *) alloca (SBYTES (Vtemp_file_name_pattern) + 1); + bcopy (SDATA (Vtemp_file_name_pattern), tempfile, + SBYTES (Vtemp_file_name_pattern) + 1); mktemp (tempfile); @@ -450,15 +467,20 @@ If you quit, the process is killed with SIGINT, or SIGKILL if you quit again.") } fd[0] = filefd; fd[1] = outfilefd; -#endif /* macintosh */ +#endif /* MAC_OS8 */ if (INTEGERP (buffer)) fd[1] = emacs_open (NULL_DEVICE, O_WRONLY, 0), fd[0] = -1; else { #ifndef MSDOS -#ifndef macintosh - pipe (fd); +#ifndef MAC_OS8 + errno = 0; + if (pipe (fd) == -1) + { + emacs_close (filefd); + report_file_error ("Creating process pipe", Qnil); + } #endif #endif #if 0 @@ -486,17 +508,18 @@ If you quit, the process is killed with SIGINT, or SIGKILL if you quit again.") to avoid timing error if process terminates soon. */ synch_process_death = 0; synch_process_retcode = 0; + synch_process_termsig = 0; if (NILP (error_file)) fd_error = emacs_open (NULL_DEVICE, O_WRONLY, 0); else if (STRINGP (error_file)) { #ifdef DOS_NT - fd_error = emacs_open (XSTRING (error_file)->data, + fd_error = emacs_open (SDATA (error_file), O_WRONLY | O_TRUNC | O_CREAT | O_TEXT, S_IREAD | S_IWRITE); #else /* not DOS_NT */ - fd_error = creat (XSTRING (error_file)->data, 0666); + fd_error = creat (SDATA (error_file), 0666); #endif /* not DOS_NT */ } @@ -518,29 +541,29 @@ If you quit, the process is killed with SIGINT, or SIGKILL if you quit again.") current_dir = ENCODE_FILE (current_dir); -#ifdef macintosh +#ifdef MAC_OS8 { /* Call run_mac_command in sysdep.c here directly instead of doing a child_setup as for MSDOS and other platforms. Note that this code does not handle passing the environment to the synchronous Mac subprocess. */ char *infn, *outfn, *errfn, *currdn; - + /* close these files so subprocess can write to them */ close (outfilefd); if (fd_error != outfilefd) close (fd_error); fd1 = -1; /* No harm in closing that one! */ - infn = XSTRING (infile)->data; + infn = SDATA (infile); outfn = tempfile; if (NILP (error_file)) errfn = NULL_DEVICE; else if (EQ (Qt, error_file)) errfn = outfn; else - errfn = XSTRING (error_file)->data; - currdn = XSTRING (current_dir)->data; + errfn = SDATA (error_file); + currdn = SDATA (current_dir); pid = run_mac_command (new_argv, currdn, infn, outfn, errfn); /* Record that the synchronous process exited and note its @@ -563,7 +586,7 @@ If you quit, the process is killed with SIGINT, or SIGKILL if you quit again.") report_file_error ("Cannot re-open temporary file", Qnil); } } -#else /* not macintosh */ +#else /* not MAC_OS8 */ #ifdef MSDOS /* MW, July 1993 */ /* Note that on MSDOS `child_setup' actually returns the child process exit status, not its PID, so we assign it to `synch_process_retcode' @@ -599,6 +622,8 @@ If you quit, the process is killed with SIGINT, or SIGKILL if you quit again.") pid = child_setup (filefd, fd1, fd_error, (char **) new_argv, 0, current_dir); #else /* not WINDOWSNT */ + BLOCK_INPUT; + pid = vfork (); if (pid == 0) @@ -616,13 +641,15 @@ If you quit, the process is killed with SIGINT, or SIGKILL if you quit again.") child_setup (filefd, fd1, fd_error, (char **) new_argv, 0, current_dir); } + + UNBLOCK_INPUT; #endif /* not WINDOWSNT */ /* The MSDOS case did this already. */ if (fd_error >= 0) emacs_close (fd_error); #endif /* not MSDOS */ -#endif /* not macintosh */ +#endif /* not MAC_OS8 */ environ = save_environ; @@ -656,14 +683,14 @@ If you quit, the process is killed with SIGINT, or SIGKILL if you quit again.") /* Enable sending signal if user quits below. */ call_process_exited = 0; -#if defined(MSDOS) || defined(macintosh) +#if defined(MSDOS) || defined(MAC_OS8) /* MSDOS needs different cleanup information. */ record_unwind_protect (call_process_cleanup, Fcons (make_number (fd[0]), build_string (tempfile))); #else record_unwind_protect (call_process_cleanup, Fcons (make_number (fd[0]), make_number (pid))); -#endif /* not MSDOS and not macintosh */ +#endif /* not MSDOS and not MAC_OS8 */ if (BUFFERP (buffer)) @@ -723,11 +750,14 @@ If you quit, the process is killed with SIGINT, or SIGKILL if you quit again.") int first = 1; int total_read = 0; int carryover = 0; - int display_on_the_fly = !NILP (display) && INTERACTIVE; + int display_on_the_fly = display_p; struct coding_system saved_coding; + int pt_orig = PT, pt_byte_orig = PT_BYTE; + int inserted; saved_coding = process_coding; - + if (process_coding.composing != COMPOSITION_DISABLED) + coding_allocate_composition_data (&process_coding, PT); while (1) { /* Repeatedly read until we've filled as much as possible @@ -736,7 +766,7 @@ If you quit, the process is killed with SIGINT, or SIGKILL if you quit again.") nread = carryover; while (nread < bufsize - 1024) { - int this_read = emacs_read (fd[0], bufptr + nread, + int this_read = emacs_read (fd[0], buf + nread, bufsize - nread); if (this_read < 0) @@ -757,75 +787,193 @@ If you quit, the process is killed with SIGINT, or SIGKILL if you quit again.") /* Now NREAD is the total amount of data in the buffer. */ immediate_quit = 0; - + if (!NILP (buffer)) { if (! CODING_MAY_REQUIRE_DECODING (&process_coding)) - insert_1_both (bufptr, nread, nread, 0, 1, 0); + insert_1_both (buf, nread, nread, 0, 1, 0); else { /* We have to decode the input. */ - int size = decoding_buffer_size (&process_coding, nread); - char *decoding_buf = (char *) xmalloc (size); + int size; + char *decoding_buf; + + repeat_decoding: + size = decoding_buffer_size (&process_coding, nread); + decoding_buf = (char *) xmalloc (size); + + /* We can't use the macro CODING_REQUIRE_DETECTION + because it always returns nonzero if the coding + system requires EOL detection. Here, we have to + check only whether or not the coding system + requires text-encoding detection. */ + if (process_coding.type == coding_type_undecided) + { + detect_coding (&process_coding, buf, nread); + if (process_coding.composing != COMPOSITION_DISABLED) + /* We have not yet allocated the composition + data because the coding type was undecided. */ + coding_allocate_composition_data (&process_coding, PT); + } + if (process_coding.cmp_data) + process_coding.cmp_data->char_offset = PT; - decode_coding (&process_coding, bufptr, decoding_buf, + decode_coding (&process_coding, buf, decoding_buf, nread, size); + if (display_on_the_fly && saved_coding.type == coding_type_undecided && process_coding.type != coding_type_undecided) { /* We have detected some coding system. But, there's a possibility that the detection was - done by insufficient data. So, we give up - displaying on the fly. */ + done by insufficient data. So, we try the code + detection again with more data. */ xfree (decoding_buf); display_on_the_fly = 0; process_coding = saved_coding; carryover = nread; + /* This is to make the above condition always + fails in the future. */ + saved_coding.type = coding_type_no_conversion; continue; } + if (process_coding.produced > 0) insert_1_both (decoding_buf, process_coding.produced_char, process_coding.produced, 0, 1, 0); xfree (decoding_buf); - carryover = nread - process_coding.consumed; + + if (process_coding.result == CODING_FINISH_INCONSISTENT_EOL) + { + Lisp_Object eol_type, coding; + + if (process_coding.eol_type == CODING_EOL_CR) + { + /* CRs have been replaced with LFs. Undo + that in the text inserted above. */ + unsigned char *p; + + move_gap_both (PT, PT_BYTE); + + p = BYTE_POS_ADDR (pt_byte_orig); + for (; p < GPT_ADDR; ++p) + if (*p == '\n') + *p = '\r'; + } + else if (process_coding.eol_type == CODING_EOL_CRLF) + { + /* CR LFs have been replaced with LFs. Undo + that by inserting CRs in front of LFs in + the text inserted above. */ + EMACS_INT bytepos, old_pt, old_pt_byte, nCR; + + old_pt = PT; + old_pt_byte = PT_BYTE; + nCR = 0; + + for (bytepos = PT_BYTE - 1; + bytepos >= pt_byte_orig; + --bytepos) + if (FETCH_BYTE (bytepos) == '\n') + { + EMACS_INT charpos = BYTE_TO_CHAR (bytepos); + TEMP_SET_PT_BOTH (charpos, bytepos); + insert_1_both ("\r", 1, 1, 0, 1, 0); + ++nCR; + } + + TEMP_SET_PT_BOTH (old_pt + nCR, old_pt_byte + nCR); + } + + /* Set the coding system symbol to that for + Unix-like EOL. */ + eol_type = Fget (saved_coding.symbol, Qeol_type); + if (VECTORP (eol_type) + && ASIZE (eol_type) == 3 + && SYMBOLP (AREF (eol_type, CODING_EOL_LF))) + coding = AREF (eol_type, CODING_EOL_LF); + else + coding = saved_coding.symbol; + + process_coding.symbol = coding; + process_coding.eol_type = CODING_EOL_LF; + process_coding.mode + &= ~CODING_MODE_INHIBIT_INCONSISTENT_EOL; + } + + nread -= process_coding.consumed; + carryover = nread; if (carryover > 0) /* As CARRYOVER should not be that large, we had better avoid overhead of bcopy. */ - BCOPY_SHORT (bufptr + process_coding.consumed, bufptr, + BCOPY_SHORT (buf + process_coding.consumed, buf, carryover); + if (process_coding.result == CODING_FINISH_INSUFFICIENT_CMP) + { + /* The decoding ended because of insufficient data + area to record information about composition. + We must try decoding with additional data area + before reading more output for the process. */ + coding_allocate_composition_data (&process_coding, PT); + goto repeat_decoding; + } } } if (process_coding.mode & CODING_MODE_LAST_BLOCK) break; +#if (CALLPROC_BUFFER_SIZE_MIN != CALLPROC_BUFFER_SIZE_MAX) /* Make the buffer bigger as we continue to read more data, - but not past 64k. */ - if (bufsize < 64 * 1024 && total_read > 32 * bufsize) - { - bufsize *= 2; - bufptr = (char *) alloca (bufsize); - } + but not past CALLPROC_BUFFER_SIZE_MAX. */ + if (bufsize < CALLPROC_BUFFER_SIZE_MAX && total_read > 32 * bufsize) + if ((bufsize *= 2) > CALLPROC_BUFFER_SIZE_MAX) + bufsize = CALLPROC_BUFFER_SIZE_MAX; +#endif - if (!NILP (display) && INTERACTIVE) + if (display_p) { if (first) prepare_menu_bars (); first = 0; - redisplay_preserve_echo_area (); + redisplay_preserve_echo_area (1); + /* This variable might have been set to 0 for code + detection. In that case, we set it back to 1 because + we should have already detected a coding system. */ + display_on_the_fly = 1; } immediate_quit = 1; QUIT; } give_up: ; - Vlast_coding_system_used = process_coding.symbol; + if (!NILP (buffer) + && process_coding.cmp_data) + { + coding_restore_composition (&process_coding, Fcurrent_buffer ()); + coding_free_composition_data (&process_coding); + } + + { + int post_read_count = SPECPDL_INDEX (); + + record_unwind_protect (save_excursion_restore, save_excursion_save ()); + inserted = PT - pt_orig; + TEMP_SET_PT_BOTH (pt_orig, pt_byte_orig); + if (SYMBOLP (process_coding.post_read_conversion) + && !NILP (Ffboundp (process_coding.post_read_conversion))) + call1 (process_coding.post_read_conversion, make_number (inserted)); + + Vlast_coding_system_used = process_coding.symbol; - /* If the caller required, let the buffer inherit the - coding-system used to decode the process output. */ - if (inherit_process_coding_system) - call1 (intern ("after-insert-file-set-buffer-file-coding-system"), - make_number (total_read)); + /* If the caller required, let the buffer inherit the + coding-system used to decode the process output. */ + if (inherit_process_coding_system) + call1 (intern ("after-insert-file-set-buffer-file-coding-system"), + make_number (total_read)); + + unbind_to (post_read_count, Qnil); + } } /* Wait for it to terminate, unless it already has. */ @@ -841,6 +989,19 @@ If you quit, the process is killed with SIGINT, or SIGKILL if you quit again.") unbind_to (count, Qnil); + if (synch_process_termsig) + { + char *signame; + + synchronize_system_messages_locale (); + signame = strsignal (synch_process_termsig); + + if (signame == 0) + signame = "unknown"; + + synch_process_death = signame; + } + if (synch_process_death) return code_convert_string_norecord (build_string (synch_process_death), Vlocale_coding_system, 0); @@ -855,37 +1016,40 @@ delete_temp_file (name) /* Use Fdelete_file (indirectly) because that runs a file name handler. We did that when writing the file, so we should do so when deleting. */ internal_delete_file (name); + return Qnil; } DEFUN ("call-process-region", Fcall_process_region, Scall_process_region, - 3, MANY, 0, - "Send text from START to END to a synchronous process running PROGRAM.\n\ -The remaining arguments are optional.\n\ -Delete the text if fourth arg DELETE is non-nil.\n\ -\n\ -Insert output in BUFFER before point; t means current buffer;\n\ - nil for BUFFER means discard it; 0 means discard and don't wait.\n\ -BUFFER can also have the form (REAL-BUFFER STDERR-FILE); in that case,\n\ -REAL-BUFFER says what to do with standard output, as above,\n\ -while STDERR-FILE says what to do with standard error in the child.\n\ -STDERR-FILE may be nil (discard standard error output),\n\ -t (mix it with ordinary output), or a file name string.\n\ -\n\ -Sixth arg DISPLAY non-nil means redisplay buffer as output is inserted.\n\ -Remaining args are passed to PROGRAM at startup as command args.\n\ -\n\ -If BUFFER is nil, `call-process-region' returns immediately with value nil.\n\ -Otherwise it waits for PROGRAM to terminate\n\ -and returns a numeric exit status or a signal description string.\n\ -If you quit, the process is killed with SIGINT, or SIGKILL if you quit again.") - (nargs, args) + 3, MANY, 0, + doc: /* Send text from START to END to a synchronous process running PROGRAM. +The remaining arguments are optional. +Delete the text if fourth arg DELETE is non-nil. + +Insert output in BUFFER before point; t means current buffer; + nil for BUFFER means discard it; 0 means discard and don't wait. +BUFFER can also have the form (REAL-BUFFER STDERR-FILE); in that case, +REAL-BUFFER says what to do with standard output, as above, +while STDERR-FILE says what to do with standard error in the child. +STDERR-FILE may be nil (discard standard error output), +t (mix it with ordinary output), or a file name string. + +Sixth arg DISPLAY non-nil means redisplay buffer as output is inserted. +Remaining args are passed to PROGRAM at startup as command args. + +If BUFFER is 0, `call-process-region' returns immediately with value nil. +Otherwise it waits for PROGRAM to terminate +and returns a numeric exit status or a signal description string. +If you quit, the process is killed with SIGINT, or SIGKILL if you quit again. + +usage: (call-process-region START END PROGRAM &optional DELETE BUFFER DISPLAY &rest ARGS) */) + (nargs, args) int nargs; register Lisp_Object *args; { struct gcpro gcpro1; Lisp_Object filename_string; register Lisp_Object start, end; - int count = specpdl_ptr - specpdl; + int count = SPECPDL_INDEX (); /* Qt denotes we have not yet called Ffind_operation_coding_system. */ Lisp_Object coding_systems; Lisp_Object val, *args2; @@ -915,14 +1079,25 @@ If you quit, the process is killed with SIGINT, or SIGKILL if you quit again.") strcat (tempfile, "detmp.XXX"); #endif #else /* not DOS_NT */ - char *tempfile = (char *) alloca (STRING_BYTES (XSTRING (Vtemp_file_name_pattern)) + 1); - bcopy (XSTRING (Vtemp_file_name_pattern)->data, tempfile, - STRING_BYTES (XSTRING (Vtemp_file_name_pattern)) + 1); + char *tempfile = (char *) alloca (SBYTES (Vtemp_file_name_pattern) + 1); + bcopy (SDATA (Vtemp_file_name_pattern), tempfile, + SBYTES (Vtemp_file_name_pattern) + 1); #endif /* not DOS_NT */ coding_systems = Qt; +#ifdef HAVE_MKSTEMP + { + int fd = mkstemp (tempfile); + if (fd == -1) + report_file_error ("Failed to open temporary file", + Fcons (Vtemp_file_name_pattern, Qnil)); + else + close (fd); + } +#else mktemp (tempfile); +#endif filename_string = build_string (tempfile); GCPRO1 (filename_string); @@ -948,7 +1123,7 @@ If you quit, the process is killed with SIGINT, or SIGKILL if you quit again.") } { - int count1 = specpdl_ptr - specpdl; + int count1 = SPECPDL_INDEX (); specbind (intern ("coding-system-for-write"), val); Fwrite_region (start, end, filename_string, Qnil, Qlambda, Qnil, Qnil); @@ -956,7 +1131,7 @@ If you quit, the process is killed with SIGINT, or SIGKILL if you quit again.") unbind_to (count1, Qnil); } - /* Note that Fcall_process takes care of binding + /* Note that Fcall_process takes care of binding coding-system-for-read. */ record_unwind_protect (delete_temp_file, filename_string); @@ -994,7 +1169,7 @@ static int relocate_fd (); of environ around the vfork and the call to this function. SET_PGRP is nonzero if we should put the subprocess into a separate - process group. + process group. CURRENT_DIR is an elisp string giving the path of the current directory the subprocess should have. Since we can't really signal @@ -1019,7 +1194,7 @@ child_setup (in, out, err, new_argv, set_pgrp, current_dir) #ifdef SET_EMACS_PRIORITY { - extern int emacs_priority; + extern EMACS_INT emacs_priority; if (emacs_priority < 0) nice (- emacs_priority); @@ -1045,11 +1220,18 @@ child_setup (in, out, err, new_argv, set_pgrp, current_dir) register char *temp; register int i; - i = STRING_BYTES (XSTRING (current_dir)); + i = SBYTES (current_dir); +#ifdef MSDOS + /* MSDOS must have all environment variables malloc'ed, because + low-level libc functions that launch subsidiary processes rely + on that. */ + pwd_var = (char *) xmalloc (i + 6); +#else pwd_var = (char *) alloca (i + 6); +#endif temp = pwd_var + 4; bcopy ("PWD=", pwd_var, 4); - bcopy (XSTRING (current_dir)->data, temp, i); + bcopy (SDATA (current_dir), temp, i); if (!IS_DIRECTORY_SEP (temp[i - 1])) temp[i++] = DIRECTORY_SEP; temp[i] = 0; @@ -1103,7 +1285,7 @@ child_setup (in, out, err, new_argv, set_pgrp, current_dir) tem = XCDR (tem)) { char **ep = env; - char *string = (char *) XSTRING (XCAR (tem))->data; + char *string = (char *) SDATA (XCAR (tem)); /* See if this string duplicates any string already in the env. If so, don't put it in. When an env var has multiple definitions, @@ -1130,7 +1312,7 @@ child_setup (in, out, err, new_argv, set_pgrp, current_dir) } #ifdef WINDOWSNT prepare_standard_handles (in, out, err, handles); - set_process_dir (XSTRING (current_dir)->data); + set_process_dir (SDATA (current_dir)); #else /* not WINDOWSNT */ /* Make sure that in, out, and err are not actually already in descriptors zero, one, or two; this could happen if Emacs is @@ -1180,12 +1362,9 @@ child_setup (in, out, err, new_argv, set_pgrp, current_dir) /* setpgrp_of_tty is incorrect here; it uses input_fd. */ EMACS_SET_TTY_PGRP (0, &pid); -#ifdef vipc - something missing here; -#endif /* vipc */ - #ifdef MSDOS pid = run_msdos_command (new_argv, pwd_var + 4, in, out, err, env); + xfree (pwd_var); if (pid == -1) /* An error occurred while trying to run the subprocess. */ report_file_error ("Spawning child process", Qnil); @@ -1258,18 +1437,18 @@ getenv_internal (var, varlen, value, valuelen) entry = XCAR (scan); if (STRINGP (entry) - && STRING_BYTES (XSTRING (entry)) > varlen - && XSTRING (entry)->data[varlen] == '=' + && SBYTES (entry) > varlen + && SREF (entry, varlen) == '=' #ifdef WINDOWSNT /* NT environment variables are case insensitive. */ - && ! strnicmp (XSTRING (entry)->data, var, varlen) + && ! strnicmp (SDATA (entry), var, varlen) #else /* not WINDOWSNT */ - && ! bcmp (XSTRING (entry)->data, var, varlen) + && ! bcmp (SDATA (entry), var, varlen) #endif /* not WINDOWSNT */ ) { - *value = (char *) XSTRING (entry)->data + (varlen + 1); - *valuelen = STRING_BYTES (XSTRING (entry)) - (varlen + 1); + *value = (char *) SDATA (entry) + (varlen + 1); + *valuelen = SBYTES (entry) - (varlen + 1); return 1; } } @@ -1278,17 +1457,17 @@ getenv_internal (var, varlen, value, valuelen) } DEFUN ("getenv-internal", Fgetenv_internal, Sgetenv_internal, 1, 1, 0, - "Return the value of environment variable VAR, as a string.\n\ -VAR should be a string. Value is nil if VAR is undefined in the environment.\n\ -This function consults the variable ``process-environment'' for its value.") - (var) + doc: /* Return the value of environment variable VAR, as a string. +VAR should be a string. Value is nil if VAR is undefined in the environment. +This function consults the variable ``process-environment'' for its value. */) + (var) Lisp_Object var; { char *value; int valuelen; - CHECK_STRING (var, 0); - if (getenv_internal (XSTRING (var)->data, STRING_BYTES (XSTRING (var)), + CHECK_STRING (var); + if (getenv_internal (SDATA (var), SBYTES (var), &value, &valuelen)) return make_string (value, valuelen); else @@ -1313,7 +1492,7 @@ egetenv (var) #endif /* not VMS */ /* This is run before init_cmdargs. */ - + void init_callproc_1 () { @@ -1321,7 +1500,7 @@ init_callproc_1 () char *doc_dir = egetenv ("EMACSDOC"); Vdata_directory - = Ffile_name_as_directory (build_string (data_dir ? data_dir + = Ffile_name_as_directory (build_string (data_dir ? data_dir : PATH_DATA)); Vdoc_directory = Ffile_name_as_directory (build_string (doc_dir ? doc_dir @@ -1340,7 +1519,7 @@ void init_callproc () { char *data_dir = egetenv ("EMACSDATA"); - + register char * sh; Lisp_Object tempdir; @@ -1353,8 +1532,12 @@ init_callproc () #ifndef DOS_NT /* MSDOS uses wrapped binaries, so don't do this. */ if (NILP (Fmember (tem, Vexec_path))) - Vexec_path = nconc2 (Vexec_path, Fcons (tem, Qnil)); - + { + Vexec_path = decode_env_path ("EMACSPATH", PATH_EXEC); + Vexec_path = Fcons (tem, Vexec_path); + Vexec_path = nconc2 (decode_env_path ("PATH", ""), Vexec_path); + } + Vexec_directory = Ffile_name_as_directory (tem); #endif /* not DOS_NT */ @@ -1376,12 +1559,15 @@ init_callproc () source directory. */ if (data_dir == 0) { - Lisp_Object tem, tem1, newdir; + Lisp_Object tem, tem1, srcdir; + srcdir = Fexpand_file_name (build_string ("../src/"), + build_string (PATH_DUMPLOADSEARCH)); tem = Fexpand_file_name (build_string ("GNU"), Vdata_directory); tem1 = Ffile_exists_p (tem); - if (NILP (tem1)) + if (!NILP (Fequal (srcdir, Vinvocation_directory)) || NILP (tem1)) { + Lisp_Object newdir; newdir = Fexpand_file_name (build_string ("../etc/"), build_string (PATH_DUMPLOADSEARCH)); tem = Fexpand_file_name (build_string ("GNU"), newdir); @@ -1396,13 +1582,13 @@ init_callproc () #endif { tempdir = Fdirectory_file_name (Vexec_directory); - if (access (XSTRING (tempdir)->data, 0) < 0) + if (access (SDATA (tempdir), 0) < 0) dir_warning ("Warning: arch-dependent data dir (%s) does not exist.\n", Vexec_directory); } tempdir = Fdirectory_file_name (Vdata_directory); - if (access (XSTRING (tempdir)->data, 0) < 0) + if (access (SDATA (tempdir), 0) < 0) dir_warning ("Warning: arch-independent data dir (%s) does not exist.\n", Vdata_directory); @@ -1426,6 +1612,14 @@ init_callproc () else Vtemp_file_name_pattern = build_string ("/tmp/emacsXXXXXX"); #endif + +#ifdef DOS_NT + Vshared_game_score_directory = Qnil; +#else + Vshared_game_score_directory = build_string (PATH_GAME); + if (NILP (Ffile_directory_p (Vshared_game_score_directory))) + Vshared_game_score_directory = Qnil; +#endif } void @@ -1451,43 +1645,62 @@ syms_of_callproc () #endif /* DOS_NT */ DEFVAR_LISP ("shell-file-name", &Vshell_file_name, - "*File name to load inferior shells from.\n\ -Initialized from the SHELL environment variable."); + doc: /* *File name to load inferior shells from. +Initialized from the SHELL environment variable. */); DEFVAR_LISP ("exec-path", &Vexec_path, - "*List of directories to search programs to run in subprocesses.\n\ -Each element is a string (directory name) or nil (try default directory)."); + doc: /* *List of directories to search programs to run in subprocesses. +Each element is a string (directory name) or nil (try default directory). */); + + DEFVAR_LISP ("exec-suffixes", &Vexec_suffixes, + doc: /* *List of suffixes to try to find executable file names. +Each element is a string. */); + Vexec_suffixes = Qnil; DEFVAR_LISP ("exec-directory", &Vexec_directory, - "Directory for executables for Emacs to invoke.\n\ -More generally, this includes any architecture-dependent files\n\ -that are built and installed from the Emacs distribution."); + doc: /* Directory for executables for Emacs to invoke. +More generally, this includes any architecture-dependent files +that are built and installed from the Emacs distribution. */); DEFVAR_LISP ("data-directory", &Vdata_directory, - "Directory of machine-independent files that come with GNU Emacs.\n\ -These are files intended for Emacs to use while it runs."); + doc: /* Directory of machine-independent files that come with GNU Emacs. +These are files intended for Emacs to use while it runs. */); DEFVAR_LISP ("doc-directory", &Vdoc_directory, - "Directory containing the DOC file that comes with GNU Emacs.\n\ -This is usually the same as data-directory."); + doc: /* Directory containing the DOC file that comes with GNU Emacs. +This is usually the same as data-directory. */); DEFVAR_LISP ("configure-info-directory", &Vconfigure_info_directory, - "For internal use by the build procedure only.\n\ -This is the name of the directory in which the build procedure installed\n\ -Emacs's info files; the default value for Info-default-directory-list\n\ -includes this."); + doc: /* For internal use by the build procedure only. +This is the name of the directory in which the build procedure installed +Emacs's info files; the default value for Info-default-directory-list +includes this. */); Vconfigure_info_directory = build_string (PATH_INFO); + DEFVAR_LISP ("shared-game-score-directory", &Vshared_game_score_directory, + doc: /* Directory of score files for games which come with GNU Emacs. +If this variable is nil, then Emacs is unable to use a shared directory. */); +#ifdef DOS_NT + Vshared_game_score_directory = Qnil; +#else + Vshared_game_score_directory = build_string (PATH_GAME); +#endif + DEFVAR_LISP ("temp-file-name-pattern", &Vtemp_file_name_pattern, - "Pattern for making names for temporary files.\n\ -This is used by `call-process-region'."); + doc: /* Pattern for making names for temporary files. +This is used by `call-process-region'. */); /* This variable is initialized in init_callproc. */ DEFVAR_LISP ("process-environment", &Vprocess_environment, - "List of environment variables for subprocesses to inherit.\n\ -Each element should be a string of the form ENVVARNAME=VALUE.\n\ -The environment which Emacs inherits is placed in this variable\n\ -when Emacs starts."); + doc: /* List of environment variables for subprocesses to inherit. +Each element should be a string of the form ENVVARNAME=VALUE. +If multiple entries define the same variable, the first one always +takes precedence. +The environment which Emacs inherits is placed in this variable +when Emacs starts. +Non-ASCII characters are encoded according to the initial value of +`locale-coding-system', i.e. the elements must normally be decoded for use. +See `setenv' and `getenv'. */); #ifndef VMS defsubr (&Scall_process); @@ -1495,3 +1708,6 @@ when Emacs starts."); #endif defsubr (&Scall_process_region); } + +/* arch-tag: 769b8045-1df7-4d2b-8968-e3fb49017f95 + (do not change this comment) */