POSIX_SPAWNATTR_SETSIGMASK(3) Library Functions Manual POSIX_SPAWNATTR_SETSIGMASK(3)

posix_spawnattr_setsigmask posix_spawnattr_getsigmaskset or get the attribute on a posix_spawnattr_t

#include <spawn.h>

int
posix_spawnattr_setsigmask(posix_spawnattr_t *restrict attr, const sigset_t *restrict sigmask);

int
posix_spawnattr_getsigmask(const posix_spawnattr_t *restrict attr, sigset_t *restrict sigmask);

The () function sets the sigmask on the attributes object referenced by attr.

The () function retrieves the sigmask on the attributes object referenced by attr.

The argument sigmask is the initial signal mask to be set for the new process on creation if the flag is set in the posix_spawnattr_t. It's default value must be set via a call to posix_spawnattr_setflags(3) or the behaviour is undefined.

On success, these functions return 0; on failure they return an error number from <errno.h>. Additionally, if successful, posix_spawnattr_getsigmask() will modify the contents of the sigmask parameter with the current attribute value.

These functions may fail if:

[]
The value specified by attr is invalid.
[]
The value of attr is invalid.

posix_spawn(2), posix_spawnp(2), posix_spawnattr_init(3), posix_spawnattr_destroy(3), posix_spawnattr_setflags(3)

Version 3 of the Single UNIX Specification (“SUSv3”) [SPN]

The posix_spawnattr_setsigmask() and posix_spawnattr_getsigmask() function calls appeared in Version 3 of the Single UNIX Specification (“SUSv3”) [SPN].

August 22, 2007 Mac OS X