/* Definitions for POSIX spawn interface.
- Copyright (C) 2000, 2003 Free Software Foundation, Inc.
+ Copyright (C) 2000-2019 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
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. */
+ License along with the GNU C Library; if not, see
+ <https://www.gnu.org/licenses/>. */
#ifndef _SPAWN_H
#define _SPAWN_H 1
#include <features.h>
#include <sched.h>
-#include <signal.h>
#include <sys/types.h>
+#include <bits/types/sigset_t.h>
/* Data structure to contain attributes for thread creation. */
#define POSIX_SPAWN_SETSIGMASK 0x08
#define POSIX_SPAWN_SETSCHEDPARAM 0x10
#define POSIX_SPAWN_SETSCHEDULER 0x20
+#ifdef __USE_GNU
+# define POSIX_SPAWN_USEVFORK 0x40
+# define POSIX_SPAWN_SETSID 0x80
+#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
+ This function is a possible cancellation point 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
+ 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]);
+ const posix_spawnattr_t *__restrict __attrp,
+ char *const __argv[__restrict_arr],
+ char *const __envp[__restrict_arr])
+ __nonnull ((2, 5));
/* Similar to `posix_spawn' but search for FILE in the PATH.
- This function is a possible cancellation points and therefore not
+ This function is a possible cancellation point 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[]);
+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[])
+ __nonnull ((2, 5));
/* Initialize data structure with attributes for `spawn' to default values. */
-extern int posix_spawnattr_init (posix_spawnattr_t *__attr) __THROW;
+extern int posix_spawnattr_init (posix_spawnattr_t *__attr)
+ __THROW __nonnull ((1));
/* Free resources associated with ATTR. */
-extern int posix_spawnattr_destroy (posix_spawnattr_t *__attr) __THROW;
+extern int posix_spawnattr_destroy (posix_spawnattr_t *__attr)
+ __THROW __nonnull ((1));
/* Store signal mask for signals with default handling from ATTR in
SIGDEFAULT. */
-extern int posix_spawnattr_getsigdefault (__const posix_spawnattr_t *
+extern int posix_spawnattr_getsigdefault (const posix_spawnattr_t *
__restrict __attr,
sigset_t *__restrict __sigdefault)
- __THROW;
+ __THROW __nonnull ((1, 2));
/* 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
+ const sigset_t *__restrict
__sigdefault)
- __THROW;
+ __THROW __nonnull ((1, 2));
/* Store signal mask for the new process from ATTR in SIGMASK. */
-extern int posix_spawnattr_getsigmask (__const posix_spawnattr_t *__restrict
+extern int posix_spawnattr_getsigmask (const posix_spawnattr_t *__restrict
__attr,
- sigset_t *__restrict __sigmask) __THROW;
+ sigset_t *__restrict __sigmask)
+ __THROW __nonnull ((1, 2));
/* 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;
+ const sigset_t *__restrict __sigmask)
+ __THROW __nonnull ((1, 2));
/* Get flag word from the attribute structure. */
-extern int posix_spawnattr_getflags (__const posix_spawnattr_t *__restrict
+extern int posix_spawnattr_getflags (const posix_spawnattr_t *__restrict
__attr,
- short int *__restrict __flags) __THROW;
+ short int *__restrict __flags)
+ __THROW __nonnull ((1, 2));
/* Store flags in the attribute structure. */
extern int posix_spawnattr_setflags (posix_spawnattr_t *_attr,
- short int __flags) __THROW;
+ short int __flags)
+ __THROW __nonnull ((1));
/* Get process group ID from the attribute structure. */
-extern int posix_spawnattr_getpgroup (__const posix_spawnattr_t *__restrict
+extern int posix_spawnattr_getpgroup (const posix_spawnattr_t *__restrict
__attr, pid_t *__restrict __pgroup)
- __THROW;
+ __THROW __nonnull ((1, 2));
/* Store process group ID in the attribute structure. */
extern int posix_spawnattr_setpgroup (posix_spawnattr_t *__attr,
- pid_t __pgroup) __THROW;
+ pid_t __pgroup)
+ __THROW __nonnull ((1));
/* Get scheduling policy from the attribute structure. */
-extern int posix_spawnattr_getschedpolicy (__const posix_spawnattr_t *
+extern int posix_spawnattr_getschedpolicy (const posix_spawnattr_t *
__restrict __attr,
int *__restrict __schedpolicy)
- __THROW;
+ __THROW __nonnull ((1, 2));
/* Store scheduling policy in the attribute structure. */
extern int posix_spawnattr_setschedpolicy (posix_spawnattr_t *__attr,
- int __schedpolicy) __THROW;
+ int __schedpolicy)
+ __THROW __nonnull ((1));
/* Get scheduling parameters from the attribute structure. */
-extern int posix_spawnattr_getschedparam (__const posix_spawnattr_t *
+extern int posix_spawnattr_getschedparam (const posix_spawnattr_t *
__restrict __attr,
struct sched_param *__restrict
- __schedparam) __THROW;
+ __schedparam)
+ __THROW __nonnull ((1, 2));
/* Store scheduling parameters in the attribute structure. */
extern int posix_spawnattr_setschedparam (posix_spawnattr_t *__restrict __attr,
const struct sched_param *
- __restrict __schedparam) __THROW;
+ __restrict __schedparam)
+ __THROW __nonnull ((1, 2));
/* Initialize data structure for file attribute for `spawn' call. */
extern int posix_spawn_file_actions_init (posix_spawn_file_actions_t *
- __file_actions) __THROW;
+ __file_actions)
+ __THROW __nonnull ((1));
/* Free resources associated with FILE-ACTIONS. */
extern int posix_spawn_file_actions_destroy (posix_spawn_file_actions_t *
- __file_actions) __THROW;
+ __file_actions)
+ __THROW __nonnull ((1));
/* 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,
+ const char *__restrict __path,
int __oflag, mode_t __mode)
- __THROW;
+ __THROW __nonnull ((1, 3));
/* 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;
+ __THROW __nonnull ((1));
/* 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;
+ int __fd, int __newfd)
+ __THROW __nonnull ((1));
+
+#ifdef __USE_GNU
+/* Add an action changing the directory to PATH during spawn. This
+ affects the subsequent file actions. */
+extern int posix_spawn_file_actions_addchdir_np (posix_spawn_file_actions_t *
+ __restrict __actions,
+ const char *__restrict __path)
+ __THROW __nonnull ((1, 2));
+
+/* Add an action changing the directory to FD during spawn. This
+ affects the subsequent file actions. FD is not duplicated and must
+ be open when the file action is executed. */
+extern int posix_spawn_file_actions_addfchdir_np (posix_spawn_file_actions_t *,
+ int __fd)
+ __THROW __nonnull ((1));
+#endif
__END_DECLS
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