Mercurial > gnulib
view lib/spawn_int.h @ 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> |
---|---|
date | Fri, 07 Sep 2018 23:35:52 +0200 |
parents | 10eb9086bea0 |
children | b06060465f09 |
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/* Copyright (C) 2000, 2008-2018 Free Software Foundation, Inc. This file is part of the GNU C Library. This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see <https://www.gnu.org/licenses/>. */ #include <sys/types.h> /* Data structure to contain the action information. */ struct __spawn_action { enum { spawn_do_close, spawn_do_dup2, spawn_do_open, spawn_do_chdir } tag; union { struct { int fd; } close_action; struct { int fd; int newfd; } dup2_action; struct { int fd; const char *path; int oflag; mode_t mode; } open_action; struct { const char *path; } chdir_action; } action; }; #if !_LIBC # define __posix_spawn_file_actions_realloc gl_posix_spawn_file_actions_realloc #endif extern int __posix_spawn_file_actions_realloc (posix_spawn_file_actions_t * file_actions); #if !_LIBC # define __spawni gl_posix_spawn_internal #endif extern int __spawni (pid_t *pid, const char *path, const posix_spawn_file_actions_t *file_actions, const posix_spawnattr_t *attrp, char *const argv[], char *const envp[], int use_path);