NAME

posix_spawnattr_getsigmask, posix_spawnattr_setsigmask — get and set the spawn-sigmask attribute of a spawn attributes object (ADVANCED REALTIME)

SYNOPSIS

[SPN] #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);

DESCRIPTION

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.

RETURN VALUE

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.

ERRORS

These functions may fail if:

[EINVAL]

The value specified by attr is invalid.

The posix_spawnattr_setsigmask() function may fail if:

[EINVAL]

The value of the attribute being set is not valid.

EXAMPLES

None.

APPLICATION USAGE

These functions are part of the Spawn option and need not be provided on all implementations.

RATIONALE

None.

FUTURE DIRECTIONS

None.

SEE ALSO

posix_spawn, posix_spawnattr_destroy, posix_spawnattr_getsigdefault, posix_spawnattr_getflags, posix_spawnattr_getpgroup, posix_spawnattr_getschedparam, posix_spawnattr_getschedpolicy

XBD <signal.h>, <spawn.h>

CHANGE HISTORY

First released in Issue 6. Derived from IEEE Std 1003.1d-1999.