diff options
Diffstat (limited to 'posix/spawn.h')
| -rw-r--r-- | posix/spawn.h | 156 |
1 files changed, 156 insertions, 0 deletions
diff --git a/posix/spawn.h b/posix/spawn.h new file mode 100644 index 0000000000..ea6dbf2772 --- /dev/null +++ b/posix/spawn.h @@ -0,0 +1,156 @@ +/* Definitions for POSIX spawn interface. + Copyright (C) 2000 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 Library General Public License as + published by the Free Software Foundation; either version 2 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 + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. 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 + + +__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. */ +extern int posix_spawn (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[]) __THROW; + +/* Similar to `posix_spawn' but search for FILE in the PATH. */ +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[]) __THROW; + + +/* 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_getdefault (__const posix_spawnattr_t *__attr, + sigset_t *__sigdefault) __THROW; + +/* Set signal mask for signals with default handling in ATTR to SIGDEFAULT. */ +extern int posix_spawnattr_setdefault (posix_spawnattr_t *__attr, + __const sigset_t *__sigdefault) __THROW; + +/* Store signal mask for the new process from ATTR in SIGMASK. */ +extern int posix_spawnattr_getsigmask (__const posix_spawnattr_t *__attr, + sigset_t *__sigmask) __THROW; + +/* Set signal mask for the new process in ATTR to SIGMASK. */ +extern int posix_spawnattr_setsigmask (posix_spawnattr_t *__attr, + __const sigset_t *__sigmask) __THROW; + +/* Get flag word from the attribute structure. */ +extern int posix_spawnattr_getflags (__const posix_spawnattr_t *__attr, + short int *__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 *__attr, + pid_t *__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 *__attr, + int *__schedpolicy) __THROW; + +/* Store scheduling policy in the attribute structure. */ +extern int posix_spawnattr_setschedpolicy (posix_spawnattr_t *__attr, + int __schedpolicy) __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 * + __file_actions, + int __fd, __const char *__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 */ |