#include <signal.h>
#include <spawn.h>
int posix_spawnattr_getsigmask(const posix_spawnattr_t *restrict
attr,
sigset_t *restrict sigmask);
int posix_spawnattr_setsigmask(posix_spawnattr_t *restrict attr,
const sigset_t *restrict sigmask);
The posix_spawnattr_getsigmask() function shall obtain the value of the spawn-sigmask attribute from the attributes object referenced by attr.
The posix_spawnattr_setsigmask() function shall set the spawn-sigmask attribute in an initialized attributes object referenced by attr.
The spawn-sigmask attribute represents the signal mask in effect in the new process image of a spawn operation (if POSIX_SPAWN_SETSIGMASK is set in the spawn-flags attribute). The default value of this attribute is unspecified.
Upon successful completion, posix_spawnattr_getsigmask() shall return zero and store the value of the spawn-sigmask attribute of attr into the object referenced by the sigmask parameter; otherwise, an error number shall be returned to indicate the error.
Upon successful completion, posix_spawnattr_setsigmask() shall return zero; otherwise, an error number shall be returned to indicate the error.
These functions may fail if:
The posix_spawnattr_setsigmask() function may fail if:
The following sections are informative.
These functions are part of the Spawn option and need not be provided on all implementations.
posix_spawn() , posix_spawnattr_destroy() , posix_spawnattr_init() , posix_spawnattr_getsigdefault() , posix_spawnattr_getflags() , posix_spawnattr_getpgroup() , posix_spawnattr_getschedparam() , posix_spawnattr_getschedpolicy() , posix_spawnattr_setsigdefault() , posix_spawnattr_setflags() , posix_spawnattr_setpgroup() , posix_spawnattr_setschedparam() , posix_spawnattr_setschedpolicy() , posix_spawnp() , the Base Definitions volume of IEEE Std 1003.1-2001, <signal.h>, <spawn.h>