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[ edit: spawn.h ]
/* Definitions for POSIX spawn interface. Copyright (C) 2000, 2003, 2004, 2009 Free Software Foundation, Inc. This file is part of the GNU C Library. The GNU C Library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version. The GNU C Library 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 Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with the GNU C Library; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. */ #ifndef _SPAWN_H #define _SPAWN_H 1 #include <features.h> #include <sched.h> #include <signal.h> #include <sys/types.h> /* Data structure to contain attributes for thread creation. */ typedef struct { short int __flags; pid_t __pgrp; sigset_t __sd; sigset_t __ss; struct sched_param __sp; int __policy; int __pad[16]; } posix_spawnattr_t; /* Data structure to contain information about the actions to be performed in the new process with respect to file descriptors. */ typedef struct { int __allocated; int __used; struct __spawn_action *__actions; int __pad[16]; } posix_spawn_file_actions_t; /* Flags to be set in the `posix_spawnattr_t'. */ #define POSIX_SPAWN_RESETIDS 0x01 #define POSIX_SPAWN_SETPGROUP 0x02 #define POSIX_SPAWN_SETSIGDEF 0x04 #define POSIX_SPAWN_SETSIGMASK 0x08 #define POSIX_SPAWN_SETSCHEDPARAM 0x10 #define POSIX_SPAWN_SETSCHEDULER 0x20 #ifdef __USE_GNU # define POSIX_SPAWN_USEVFORK 0x40 #endif __BEGIN_DECLS /* Spawn a new process executing PATH with the attributes describes in *ATTRP. Before running the process perform the actions described in FILE-ACTIONS. This function is a possible cancellation points and therefore not marked with __THROW. */ extern int posix_spawn (pid_t *__restrict __pid, __const char *__restrict __path, __const posix_spawn_file_actions_t *__restrict __file_actions, __const posix_spawnattr_t *__restrict __attrp, char *__const __argv[__restrict_arr], char *__const __envp[__restrict_arr]); /* Similar to `posix_spawn' but search for FILE in the PATH. This function is a possible cancellation points and therefore not marked with __THROW. */ extern int posix_spawnp (pid_t *__pid, __const char *__file, __const posix_spawn_file_actions_t *__file_actions, __const posix_spawnattr_t *__attrp, char *__const __argv[], char *__const __envp[]); /* Initialize data structure with attributes for `spawn' to default values. */ extern int posix_spawnattr_init (posix_spawnattr_t *__attr) __THROW; /* Free resources associated with ATTR. */ extern int posix_spawnattr_destroy (posix_spawnattr_t *__attr) __THROW; /* Store signal mask for signals with default handling from ATTR in SIGDEFAULT. */ extern int posix_spawnattr_getsigdefault (__const posix_spawnattr_t * __restrict __attr, sigset_t *__restrict __sigdefault) __THROW; /* Set signal mask for signals with default handling in ATTR to SIGDEFAULT. */ extern int posix_spawnattr_setsigdefault (posix_spawnattr_t *__restrict __attr, __const sigset_t *__restrict __sigdefault) __THROW; /* Store signal mask for the new process from ATTR in SIGMASK. */ extern int posix_spawnattr_getsigmask (__const posix_spawnattr_t *__restrict __attr, sigset_t *__restrict __sigmask) __THROW; /* Set signal mask for the new process in ATTR to SIGMASK. */ extern int posix_spawnattr_setsigmask (posix_spawnattr_t *__restrict __attr, __const sigset_t *__restrict __sigmask) __THROW; /* Get flag word from the attribute structure. */ extern int posix_spawnattr_getflags (__const posix_spawnattr_t *__restrict __attr, short int *__restrict __flags) __THROW; /* Store flags in the attribute structure. */ extern int posix_spawnattr_setflags (posix_spawnattr_t *_attr, short int __flags) __THROW; /* Get process group ID from the attribute structure. */ extern int posix_spawnattr_getpgroup (__const posix_spawnattr_t *__restrict __attr, pid_t *__restrict __pgroup) __THROW; /* Store process group ID in the attribute structure. */ extern int posix_spawnattr_setpgroup (posix_spawnattr_t *__attr, pid_t __pgroup) __THROW; /* Get scheduling policy from the attribute structure. */ extern int posix_spawnattr_getschedpolicy (__const posix_spawnattr_t * __restrict __attr, int *__restrict __schedpolicy) __THROW; /* Store scheduling policy in the attribute structure. */ extern int posix_spawnattr_setschedpolicy (posix_spawnattr_t *__attr, int __schedpolicy) __THROW; /* Get scheduling parameters from the attribute structure. */ extern int posix_spawnattr_getschedparam (__const posix_spawnattr_t * __restrict __attr, struct sched_param *__restrict __schedparam) __THROW; /* Store scheduling parameters in the attribute structure. */ extern int posix_spawnattr_setschedparam (posix_spawnattr_t *__restrict __attr, const struct sched_param * __restrict __schedparam) __THROW; /* Initialize data structure for file attribute for `spawn' call. */ extern int posix_spawn_file_actions_init (posix_spawn_file_actions_t * __file_actions) __THROW; /* Free resources associated with FILE-ACTIONS. */ extern int posix_spawn_file_actions_destroy (posix_spawn_file_actions_t * __file_actions) __THROW; /* Add an action to FILE-ACTIONS which tells the implementation to call `open' for the given file during the `spawn' call. */ extern int posix_spawn_file_actions_addopen (posix_spawn_file_actions_t * __restrict __file_actions, int __fd, __const char *__restrict __path, int __oflag, mode_t __mode) __THROW; /* Add an action to FILE-ACTIONS which tells the implementation to call `close' for the given file descriptor during the `spawn' call. */ extern int posix_spawn_file_actions_addclose (posix_spawn_file_actions_t * __file_actions, int __fd) __THROW; /* Add an action to FILE-ACTIONS which tells the implementation to call `dup2' for the given file descriptors during the `spawn' call. */ extern int posix_spawn_file_actions_adddup2 (posix_spawn_file_actions_t * __file_actions, int __fd, int __newfd) __THROW; __END_DECLS #endif /* spawn.h */
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