posix_spawnattr_getsigmask(3) [osx man page]
POSIX_SPAWNATTR_SETSIGMASK(3) BSD Library Functions Manual POSIX_SPAWNATTR_SETSIGMASK(3) NAME
posix_spawnattr_setsigmask posix_spawnattr_getsigmask -- set or get the spawn-sigmask attribute on a posix_spawnattr_t SYNOPSIS
#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); DESCRIPTION
The posix_spawnattr_setsigmask() function sets the sigmask on the attributes object referenced by attr. The posix_spawnattr_getsigmask() 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 POSIX_SPAWN_SETSIGMASK 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. RETURN VALUES
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. ERRORS
These functions may fail if: [EINVAL] The value specified by attr is invalid. [EINVAL] The value of attr is invalid. SEE ALSO
posix_spawn(2), posix_spawnp(2), posix_spawnattr_init(3), posix_spawnattr_destroy(3), posix_spawnattr_setflags(3) STANDARDS
Version 3 of the Single UNIX Specification (``SUSv3'') [SPN] HISTORY
The posix_spawnattr_setsigmask() and posix_spawnattr_getsigmask() function calls appeared in Version 3 of the Single UNIX Specification (``SUSv3'') [SPN]. Mac OS X August 22, 2007 Mac OS X
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posix_spawnattr_getsigmask(3C) Standard C Library Functions posix_spawnattr_getsigmask(3C) NAME
posix_spawnattr_getsigmask, posix_spawnattr_setsigmask - get and set spawn-sigmask attribute of spawn attributes object SYNOPSIS
#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 obtains the value of the spawn-sigmask attribute from the attributes object referenced by attr. The posix_spawnattr_setsigmask() function 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. RETURN VALUES
Upon successful completion, posix_spawnattr_getsigmask() 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, posix_spawnattr_setsigmask() returns 0. Otherwise, an error number is 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. ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Interface Stability |Standard | +-----------------------------+-----------------------------+ |MT-Level |MT-Safe | +-----------------------------+-----------------------------+ SEE ALSO
posix_spawn(3C), posix_spawnattr_destroy(3C), posix_spawnattr_getflags(3C), posix_spawnattr_getpgroup(3C), posix_spawnattr_getsched- param(3C), posix_spawnattr_getschedpolicy(3C), posix_spawnattr_getsigmask(3C), attributes(5), standards(5) SunOS 5.10 30 Jan 2004 posix_spawnattr_getsigmask(3C)