Gets and sets the spawn-sigmask attribute of a spawn attributes object.
#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 subroutine gets the value of the spawn-sigmask attribute from the attributes object referenced by attr.
The posix_spawnattr_setsigmask subroutine sets 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, the posix_spawnattr_getsigmask subroutine returns 0 and stores the value of the spawn-sigmask attribute of attr into the object referenced by the sigmask parameter; otherwise, an error number is returned to indicate the error.
Upon successful completion, the posix_spawnattr_setsigmask subroutine returns 0; otherwise, an error number is returned to indicate the error.
Item | Description |
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EINVAL | The value specified by attr is invalid. |
Item | Description |
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EINVAL | The value of the attribute being set is not valid. |