/* Synchronous subprocess invocation for GNU Emacs.
- Copyright (C) 1985,86,87,88,93,94,95,99, 2000,01,02,03,04
- Free Software Foundation, Inc.
+ Copyright (C) 1985, 1986, 1987, 1988, 1993, 1994, 1995, 1999, 2000, 2001,
+ 2002, 2003, 2004, 2005, 2006 Free Software Foundation, Inc.
This file is part of GNU Emacs.
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 <config.h>
#include "process.h"
#include "syssignal.h"
#include "systty.h"
+#include "blockinput.h"
#ifdef MSDOS
#include "msdos.h"
/* 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;
\f
/* Clean up when exiting Fcall_process.
On MSDOS, delete the temporary file on any kind of termination.
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 = sizeof buf;
+#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
protected by the caller, so all we really have to worry about is
buffer. */
{
- struct gcpro gcpro1, gcpro2, gcpro3;
+ struct gcpro gcpro1, gcpro2, gcpro3, gcpro4;
current_dir = current_buffer->directory;
- GCPRO3 (infile, buffer, current_dir);
+ GCPRO4 (infile, buffer, current_dir, error_file);
current_dir
= expand_and_dir_to_file (Funhandled_file_name_directory (current_dir),
report_file_error ("Setting current directory",
Fcons (current_buffer->directory, Qnil));
+ if (STRING_MULTIBYTE (infile))
+ infile = ENCODE_FILE (infile);
+ if (STRING_MULTIBYTE (current_dir))
+ current_dir = ENCODE_FILE (current_dir);
+ if (STRINGP (error_file) && STRING_MULTIBYTE (error_file))
+ error_file = ENCODE_FILE (error_file);
UNGCPRO;
}
- display = nargs >= 4 ? args[3] : Qnil;
+ display_p = INTERACTIVE && nargs >= 4 && !NILP (args[3]);
filefd = emacs_open (SDATA (infile), O_RDONLY, 0);
if (filefd < 0)
{
+ infile = DECODE_FILE (infile);
report_file_error ("Opening process input file", Fcons (infile, Qnil));
}
/* Search for program; barf if not found. */
#ifdef MSDOS
unlink (tempfile);
#endif
- report_file_error ("Cannot redirect stderr",
- Fcons ((NILP (error_file)
- ? build_string (NULL_DEVICE) : error_file),
- Qnil));
+ if (NILP (error_file))
+ error_file = build_string (NULL_DEVICE);
+ else if (STRINGP (error_file))
+ error_file = DECODE_FILE (error_file);
+ report_file_error ("Cannot redirect stderr", Fcons (error_file, Qnil));
}
- current_dir = ENCODE_FILE (current_dir);
-
#ifdef MAC_OS8
{
/* Call run_mac_command in sysdep.c here directly instead of doing
pid = child_setup (filefd, fd1, fd_error, (char **) new_argv,
0, current_dir);
#else /* not WINDOWSNT */
+ BLOCK_INPUT;
+
pid = vfork ();
if (pid == 0)
child_setup (filefd, fd1, fd_error, (char **) new_argv,
0, current_dir);
}
+
+ UNBLOCK_INPUT;
#endif /* not WINDOWSNT */
/* The MSDOS case did this already. */
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;
saved_coding = process_coding;
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)
{
if (NILP (current_buffer->enable_multibyte_characters)
&& ! 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. */
- Lisp_Object buf;
+ Lisp_Object curbuf;
- XSETBUFFER (buf, current_buffer);
- decode_coding_c_string (&process_coding, bufptr, nread,
- buf);
+ XSETBUFFER (curbuf, current_buffer);
+ decode_coding_c_string (&process_coding, buf, nread,
+ curbuf);
if (display_on_the_fly
&& CODING_REQUIRE_DETECTION (&saved_coding)
&& ! CODING_REQUIRE_DETECTION (&process_coding))
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.common_flags
+ &= ~CODING_REQUIRE_DETECTION_MASK;
continue;
}
if (carryover > 0)
/* As CARRYOVER should not be that large, we had
better avoid overhead of bcopy. */
- BCOPY_SHORT (process_coding.carryover, bufptr,
+ BCOPY_SHORT (process_coding.carryover, buf,
process_coding.carryover_bytes);
}
}
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)
- {
- char *tempptr;
- bufsize *= 2;
-
- tempptr = (char *) alloca (bufsize);
- bcopy (bufptr, tempptr, bufsize / 2);
- bufptr = tempptr;
- }
+ 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 (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;
delete_temp_file (name)
Lisp_Object 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. */
+ /* Suppress jka-compr handling, etc. */
+ int count = SPECPDL_INDEX ();
+ specbind (intern ("file-name-handler-alist"), Qnil);
internal_delete_file (name);
+ unbind_to (count, Qnil);
return Qnil;
}
int count1 = SPECPDL_INDEX ();
specbind (intern ("coding-system-for-write"), val);
+ /* POSIX lets mk[s]temp use "."; don't invoke jka-compr if we
+ happen to get a ".Z" suffix. */
+ specbind (intern ("file-name-handler-alist"), Qnil);
Fwrite_region (start, end, filename_string, Qnil, Qlambda, Qnil, Qnil);
unbind_to (count1, Qnil);