kc3-lang/gnulib/lib/spawn_int.h

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• Hash : 86b1dc89
  Author :
  Date : 2018-09-07T23:35:52
  

  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.
  

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• lib/spawn_int.h

• /* 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);
  

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