From 3c1842a44c305fc36a39fec10fab78ad2db84f9e Mon Sep 17 00:00:00 2001 From: davidxu Date: Tue, 17 Jun 2008 06:26:29 +0000 Subject: Add POSIX routines called posix_spawn() and posix_spawnp(), which can be used as replacements for exec/fork in a lot of cases. This change also added execvpe() which allows environment variable PATH to be used for searching executable file, it is used for implementing posix_spawnp(). PR: standards/122051 --- include/spawn.h | 115 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 115 insertions(+) create mode 100644 include/spawn.h (limited to 'include/spawn.h') diff --git a/include/spawn.h b/include/spawn.h new file mode 100644 index 0000000..5783551 --- /dev/null +++ b/include/spawn.h @@ -0,0 +1,115 @@ +/*- + * Copyright (c) 2008 Ed Schouten + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * $FreeBSD$ + */ + +#ifndef _SPAWN_H_ +#define _SPAWN_H_ + +#include +#include +#include + +#ifndef _MODE_T_DECLARED +typedef __mode_t mode_t; +#define _MODE_T_DECLARED +#endif + +#ifndef _PID_T_DECLARED +typedef __pid_t pid_t; +#define _PID_T_DECLARED +#endif + +#ifndef _SIGSET_T_DECLARED +#define _SIGSET_T_DECLARED +typedef __sigset_t sigset_t; +#endif + +struct sched_param; + +typedef struct __posix_spawnattr *posix_spawnattr_t; +typedef struct __posix_spawn_file_actions *posix_spawn_file_actions_t; + +#define POSIX_SPAWN_RESETIDS 0x01 +#define POSIX_SPAWN_SETPGROUP 0x02 +#define POSIX_SPAWN_SETSCHEDPARAM 0x04 +#define POSIX_SPAWN_SETSCHEDULER 0x08 +#define POSIX_SPAWN_SETSIGDEF 0x10 +#define POSIX_SPAWN_SETSIGMASK 0x20 + +__BEGIN_DECLS +/* + * Spawn routines + */ +int posix_spawn(pid_t * __restrict, const char * __restrict, + const posix_spawn_file_actions_t *, const posix_spawnattr_t * __restrict, + char * const [__restrict], char * const [__restrict]); +int posix_spawnp(pid_t * __restrict, const char * __restrict, + const posix_spawn_file_actions_t *, const posix_spawnattr_t * __restrict, + char * const [__restrict], char * const [__restrict]); + +/* + * File descriptor actions + */ +int posix_spawn_file_actions_init(posix_spawn_file_actions_t *); +int posix_spawn_file_actions_destroy(posix_spawn_file_actions_t *); + +int posix_spawn_file_actions_addopen(posix_spawn_file_actions_t * __restrict, + int, const char * __restrict, int, mode_t); +int posix_spawn_file_actions_adddup2(posix_spawn_file_actions_t *, int, int); +int posix_spawn_file_actions_addclose(posix_spawn_file_actions_t *, int); + +/* + * Spawn attributes + */ +int posix_spawnattr_init(posix_spawnattr_t *); +int posix_spawnattr_destroy(posix_spawnattr_t *); + +int posix_spawnattr_getflags(const posix_spawnattr_t * __restrict, + short * __restrict); +int posix_spawnattr_getpgroup(const posix_spawnattr_t * __restrict, + pid_t * __restrict); +int posix_spawnattr_getschedparam(const posix_spawnattr_t * __restrict, + struct sched_param * __restrict); +int posix_spawnattr_getschedpolicy(const posix_spawnattr_t * __restrict, + int * __restrict); +int posix_spawnattr_getsigdefault(const posix_spawnattr_t * __restrict, + sigset_t * __restrict); +int posix_spawnattr_getsigmask(const posix_spawnattr_t * __restrict, + sigset_t * __restrict sigmask); + +int posix_spawnattr_setflags(posix_spawnattr_t *, short); +int posix_spawnattr_setpgroup(posix_spawnattr_t *, pid_t); +int posix_spawnattr_setschedparam(posix_spawnattr_t * __restrict, + const struct sched_param * __restrict); +int posix_spawnattr_setschedpolicy(posix_spawnattr_t *, int); +int posix_spawnattr_setsigdefault(posix_spawnattr_t * __restrict, + const sigset_t * __restrict); +int posix_spawnattr_setsigmask(posix_spawnattr_t * __restrict, + const sigset_t * __restrict); +__END_DECLS + +#endif /* !_SPAWN_H_ */ -- cgit v1.1