Mercurial > gnulib
annotate doc/posix-functions/posix_spawn.texi @ 39828:8d755c31408d
posix_spawn_file_actions_addchdir: New module.
Suggested by Eric Blake in
<https://lists.gnu.org/archive/html/bug-findutils/2018-09/msg00007.html>.
* lib/spawn.in.h (posix_spawn_file_actions_addchdir): New declaration.
* lib/spawn_int.h (struct __spawn_action): Add tag 'spawn_do_chdir' and
union member 'chdir_action'.
* lib/spawn_faction_addchdir.c: New file.
* lib/spawni.c (__spawni): Implement the spawn_do_chdir action.
* lib/spawn_faction_addclose.c: Test REPLACE_POSIX_SPAWN instead of
HAVE_WORKING_POSIX_SPAWN.
* lib/spawn_faction_adddup2.c: Likewise.
* lib/spawn_faction_addopen.c: Likewise.
* m4/posix_spawn_faction_addchdir.m4: New file.
* m4/posix_spawn.m4 (gl_POSIX_SPAWN_BODY): Test whether module
'posix_spawn_file_actions_addchdir' is present and whether
posix_spawn_file_actions_addchdir_np exists. Define REPLACE_POSIX_SPAWN
instead of HAVE_WORKING_POSIX_SPAWN.
* m4/spawn_h.m4 (gl_SPAWN_H): Test whether
posix_spawn_file_actions_addchdir is declared.
(gl_SPAWN_H_DEFAULTS): Initialize
GNULIB_POSIX_SPAWN_FILE_ACTIONS_ADDCHDIR,
HAVE_POSIX_SPAWN_FILE_ACTIONS_ADDCHDIR,
REPLACE_POSIX_SPAWN_FILE_ACTIONS_ADDCHDIR.
* modules/spawn (Makefile.am): Substitute
GNULIB_POSIX_SPAWN_FILE_ACTIONS_ADDCHDIR,
HAVE_POSIX_SPAWN_FILE_ACTIONS_ADDCHDIR,
REPLACE_POSIX_SPAWN_FILE_ACTIONS_ADDCHDIR.
* modules/posix_spawn_file_actions_addchdir: New file.
* modules/posix_spawn_file_actions_addclose (Depends-on,
configure.ac): Test also REPLACE_POSIX_SPAWN.
* modules/posix_spawn_file_actions_adddup2 (Depends-on,
configure.ac): Likewise.
* modules/posix_spawn_file_actions_addopen (Depends-on,
configure.ac): Likewise.
* tests/test-spawn-c++.cc (posix_spawn_file_actions_addchdir): Check
signature.
* doc/posix-functions/posix_spawn.texi: Mention the new module.
* doc/posix-functions/posix_spawnp.texi: Likewise.
author | Bruno Haible <bruno@clisp.org> |
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date | Fri, 07 Sep 2018 23:35:52 +0200 |
parents | 0f6b0bb3cee9 |
children |
rev | line source |
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9638
070329237839
Rename two directories: headers -> posix-headers, functions -> posix-functions.
Bruno Haible <bruno@clisp.org>
parents:
diff
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1 @node posix_spawn |
070329237839
Rename two directories: headers -> posix-headers, functions -> posix-functions.
Bruno Haible <bruno@clisp.org>
parents:
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2 @section @code{posix_spawn} |
070329237839
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3 @findex posix_spawn |
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4 |
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avoid some overlong lines from posix urls, etc.
Karl Berry <karl@freefriends.org>
parents:
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5 POSIX specification:@* @url{http://www.opengroup.org/onlinepubs/9699919799/functions/posix_spawn.html} |
9638
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Rename two directories: headers -> posix-headers, functions -> posix-functions.
Bruno Haible <bruno@clisp.org>
parents:
diff
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6 |
10525 | 7 Gnulib module: posix_spawn |
9638
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Rename two directories: headers -> posix-headers, functions -> posix-functions.
Bruno Haible <bruno@clisp.org>
parents:
diff
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8 |
070329237839
Rename two directories: headers -> posix-headers, functions -> posix-functions.
Bruno Haible <bruno@clisp.org>
parents:
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9 Portability problems fixed by Gnulib: |
070329237839
Rename two directories: headers -> posix-headers, functions -> posix-functions.
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parents:
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10 @itemize |
10525 | 11 @item |
12 This function is missing on some platforms: | |
19650
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doc: Add info about Android versions 2.0 to 8.1.
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13 Mac OS X 10.4, FreeBSD 6.0, NetBSD 5.0, OpenBSD 3.8, Minix 3.1.8, AIX 5.1, HP-UX 11, IRIX 6.5, OSF/1 5.1, Solaris 9, Cygwin, mingw, MSVC 14, Interix 3.5, BeOS, Android 8.1. |
10563
f6167115b0de
Avoid the broken posix_spawn function on AIX 5.3 and 6.1.
Bruno Haible <bruno@clisp.org>
parents:
10525
diff
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14 @item |
f6167115b0de
Avoid the broken posix_spawn function on AIX 5.3 and 6.1.
Bruno Haible <bruno@clisp.org>
parents:
10525
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15 When this function fails, it causes the stdio buffer contents to be output |
f6167115b0de
Avoid the broken posix_spawn function on AIX 5.3 and 6.1.
Bruno Haible <bruno@clisp.org>
parents:
10525
diff
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16 twice on some platforms: |
f6167115b0de
Avoid the broken posix_spawn function on AIX 5.3 and 6.1.
Bruno Haible <bruno@clisp.org>
parents:
10525
diff
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17 AIX 6.1. |
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parents:
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18 @end itemize |
070329237839
Rename two directories: headers -> posix-headers, functions -> posix-functions.
Bruno Haible <bruno@clisp.org>
parents:
diff
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19 |
070329237839
Rename two directories: headers -> posix-headers, functions -> posix-functions.
Bruno Haible <bruno@clisp.org>
parents:
diff
changeset
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20 Portability problems not fixed by Gnulib: |
070329237839
Rename two directories: headers -> posix-headers, functions -> posix-functions.
Bruno Haible <bruno@clisp.org>
parents:
diff
changeset
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21 @itemize |
070329237839
Rename two directories: headers -> posix-headers, functions -> posix-functions.
Bruno Haible <bruno@clisp.org>
parents:
diff
changeset
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22 @item |
10525 | 23 This function does not work on some platforms: |
10563
f6167115b0de
Avoid the broken posix_spawn function on AIX 5.3 and 6.1.
Bruno Haible <bruno@clisp.org>
parents:
10525
diff
changeset
|
24 AIX 6.1 (under particular circumstances), mingw. |
9638
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Rename two directories: headers -> posix-headers, functions -> posix-functions.
Bruno Haible <bruno@clisp.org>
parents:
diff
changeset
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25 @end itemize |
39828
8d755c31408d
posix_spawn_file_actions_addchdir: New module.
Bruno Haible <bruno@clisp.org>
parents:
19650
diff
changeset
|
26 |
8d755c31408d
posix_spawn_file_actions_addchdir: New module.
Bruno Haible <bruno@clisp.org>
parents:
19650
diff
changeset
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27 The Gnulib module @code{posix_spawn_file_actions_addchdir} provides an |
8d755c31408d
posix_spawn_file_actions_addchdir: New module.
Bruno Haible <bruno@clisp.org>
parents:
19650
diff
changeset
|
28 additional action, that consists in changing the current directory of |
8d755c31408d
posix_spawn_file_actions_addchdir: New module.
Bruno Haible <bruno@clisp.org>
parents:
19650
diff
changeset
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29 the child process before starting the specified program. |