diff options
| -rw-r--r-- | include/spawn.h | 265 |
1 files changed, 144 insertions, 121 deletions
diff --git a/include/spawn.h b/include/spawn.h index 8b07bb800..95fff356f 100644 --- a/include/spawn.h +++ b/include/spawn.h @@ -19,36 +19,39 @@ #ifndef _SPAWN_H #define _SPAWN_H 1 -#include <errno.h> -#include <string.h> -#include <stdlib.h> - #include <features.h> #include <sched.h> #define __need_sigset_t #include <signal.h> #include <sys/types.h> +/* For the tiny inlines (errno/free/memset). */ +#include <errno.h> +#include <string.h> +#include <stdlib.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]; +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]; +typedef struct +{ + int __allocated; + int __used; + struct __spawn_action *__actions; + int __pad[16]; } posix_spawn_file_actions_t; @@ -59,7 +62,9 @@ typedef struct { #define POSIX_SPAWN_SETSIGMASK 0x08 #define POSIX_SPAWN_SETSCHEDPARAM 0x10 #define POSIX_SPAWN_SETSCHEDULER 0x20 -#define POSIX_SPAWN_USEVFORK 0x40 /* GNU extension */ +#ifdef __USE_GNU +# define POSIX_SPAWN_USEVFORK 0x40 +#endif #define __POSIX_SPAWN_MASK (POSIX_SPAWN_RESETIDS \ @@ -77,189 +82,207 @@ __BEGIN_DECLS This function is a possible cancellation point and therefore not marked with __THROW. */ -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], - char * const envp[restrict]); +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 point and therefore not marked with __THROW. */ -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. */ -inline static int -posix_spawnattr_init(posix_spawnattr_t *attr) +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. */ +static inline +int posix_spawnattr_init (posix_spawnattr_t *__attr) { - memset(attr, 0, sizeof(*attr)); - return 0; + memset (__attr, 0, sizeof (*__attr)); + return 0; } /* Free resources associated with ATTR. */ -inline static int -posix_spawnattr_destroy(posix_spawnattr_t *attr) +static inline +int posix_spawnattr_destroy (posix_spawnattr_t *__attr) { - return 0; + return 0; } /* Store signal mask for signals with default handling from ATTR in SIGDEFAULT. */ -inline static int -posix_spawnattr_getsigdefault(const posix_spawnattr_t *attr, - sigset_t *sigdefault) +static inline +int posix_spawnattr_getsigdefault (const posix_spawnattr_t * + __restrict __attr, + sigset_t *__restrict __sigdefault) { - memcpy(sigdefault, &attr->__sd, sizeof(sigset_t)); - return 0; + memcpy (__sigdefault, &__attr->__sd, sizeof (sigset_t)); + return 0; } - /* Set signal mask for signals with default handling in ATTR to SIGDEFAULT. */ -inline static int -posix_spawnattr_setsigdefault(posix_spawnattr_t *attr, - const sigset_t *sigdefault) +static inline +int posix_spawnattr_setsigdefault (posix_spawnattr_t *__restrict __attr, + const sigset_t *__restrict + __sigdefault) { - memcpy(&attr->__sd, sigdefault, sizeof(sigset_t)); - return 0; + memcpy (&__attr->__sd, __sigdefault, sizeof (sigset_t)); + return 0; } /* Store signal mask for the new process from ATTR in SIGMASK. */ -inline static int -posix_spawnattr_getsigmask(const posix_spawnattr_t *attr, - sigset_t *sigmask) +static inline +int posix_spawnattr_getsigmask (const posix_spawnattr_t *__restrict + __attr, + sigset_t *__restrict __sigmask) { - memcpy(sigmask, &attr->__ss, sizeof(sigset_t)); - return 0; + memcpy (__sigmask, &__attr->__ss, sizeof (sigset_t)); + return 0; } - /* Set signal mask for the new process in ATTR to SIGMASK. */ -inline static int -posix_spawnattr_setsigmask(posix_spawnattr_t *attr, - const sigset_t *sigmask) +static inline +int posix_spawnattr_setsigmask (posix_spawnattr_t *__restrict __attr, + const sigset_t *__restrict __sigmask) { - memcpy(&attr->__ss, sigmask, sizeof(sigset_t)); - return 0; + memcpy (&__attr->__ss, __sigmask, sizeof (sigset_t)); + return 0; } /* Get flag word from the attribute structure. */ -inline static int -posix_spawnattr_getflags(const posix_spawnattr_t *attr, short int *flags) +static inline +int posix_spawnattr_getflags (const posix_spawnattr_t *__restrict + __attr, + short int *__restrict __flags) { - *flags = attr->__flags; - return 0; + *__flags = __attr->__flags; + return 0; } /* Store flags in the attribute structure. */ -inline static int -posix_spawnattr_setflags(posix_spawnattr_t *attr, short int flags) +static inline +int posix_spawnattr_setflags (posix_spawnattr_t *_attr, + short int __flags) { - /* Check no invalid bits are set. */ - if (flags & ~__POSIX_SPAWN_MASK) - return EINVAL; + /* Check no invalid bits are set. */ + if (__flags & ~__POSIX_SPAWN_MASK) + return EINVAL; - attr->__flags = flags; - return 0; + _attr->__flags = __flags; + return 0; } /* Get process group ID from the attribute structure. */ -inline static int -posix_spawnattr_getpgroup(const posix_spawnattr_t *attr, pid_t *pgroup) +static inline +int posix_spawnattr_getpgroup (const posix_spawnattr_t *__restrict + __attr, pid_t *__restrict __pgroup) { - *pgroup = attr->__pgrp; - return 0; + *__pgroup = __attr->__pgrp; + return 0; } /* Store process group ID in the attribute structure. */ -inline static int -posix_spawnattr_setpgroup(posix_spawnattr_t *attr, pid_t pgroup) +static inline +int posix_spawnattr_setpgroup (posix_spawnattr_t *__attr, + pid_t __pgroup) { - attr->__pgrp = pgroup; - return 0; + __attr->__pgrp = __pgroup; + return 0; } /* Get scheduling policy from the attribute structure. */ -inline static int -posix_spawnattr_getschedpolicy(const posix_spawnattr_t *attr, - int *schedpolicy) +static inline +int posix_spawnattr_getschedpolicy (const posix_spawnattr_t * + __restrict __attr, + int *__restrict __schedpolicy) { - *schedpolicy = attr->__policy; - return 0; + *__schedpolicy = __attr->__policy; + return 0; } /* Store scheduling policy in the attribute structure. */ -inline static int -posix_spawnattr_setschedpolicy(posix_spawnattr_t *attr, int schedpolicy) +static inline +int posix_spawnattr_setschedpolicy (posix_spawnattr_t *__attr, + int __schedpolicy) { - switch (schedpolicy) { - case SCHED_OTHER: - case SCHED_FIFO: - case SCHED_RR: - break; - default: - return EINVAL; - } - - attr->__policy = schedpolicy; - return 0; + switch (__schedpolicy) { + case SCHED_OTHER: + case SCHED_FIFO: + case SCHED_RR: + break; + default: + return EINVAL; + } + + __attr->__policy = __schedpolicy; + return 0; } /* Get scheduling parameters from the attribute structure. */ -static inline int -posix_spawnattr_getschedparam(const posix_spawnattr_t *attr, - struct sched_param *schedparam) +static inline +int posix_spawnattr_getschedparam (const posix_spawnattr_t * + __restrict __attr, + struct sched_param *__restrict + __schedparam) { - memcpy(schedparam, &attr->__sp, sizeof(attr->__sp)); - return 0; + memcpy (__schedparam, &__attr->__sp, sizeof (__attr->__sp)); + return 0; } /* Store scheduling parameters in the attribute structure. */ -static inline int -posix_spawnattr_setschedparam(posix_spawnattr_t *attr, - const struct sched_param *schedparam) +static inline +int posix_spawnattr_setschedparam (posix_spawnattr_t *__restrict __attr, + const struct sched_param * + __restrict __schedparam) { - attr->__sp = *schedparam; - return 0; + __attr->__sp = *__schedparam; + return 0; } /* Initialize data structure for file attribute for `spawn' call. */ -inline static int -posix_spawn_file_actions_init(posix_spawn_file_actions_t *file_actions) +static inline +int posix_spawn_file_actions_init (posix_spawn_file_actions_t * + __file_actions) { - memset(file_actions, 0, sizeof(*file_actions)); - return 0; + memset (__file_actions, 0, sizeof (*__file_actions)); + return 0; } /* Free resources associated with FILE-ACTIONS. */ -inline static int -posix_spawn_file_actions_destroy(posix_spawn_file_actions_t *file_actions) +static inline +int posix_spawn_file_actions_destroy (posix_spawn_file_actions_t * + __file_actions) { - free(file_actions->__actions); - return 0; + free (__file_actions->__actions); + return 0; } /* Add an action to FILE-ACTIONS which tells the implementation to call `open' for the given file during the `spawn' call. */ -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) +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. */ -int posix_spawn_file_actions_addclose(posix_spawn_file_actions_t *file_actions, - int fd) +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. */ -int posix_spawn_file_actions_adddup2(posix_spawn_file_actions_t *file_actions, - int fd, int newfd) __THROW; +extern int posix_spawn_file_actions_adddup2 (posix_spawn_file_actions_t * + __file_actions, + int __fd, int __newfd) __THROW; __END_DECLS |