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@(#)posix_spawnattr_setsigmask.3
. .Dd August 22, 2007 .Dt POSIX_SPAWNATTR_SETSIGMASK 3 .Os "Mac OS X" .Sh NAME .Nm posix_spawnattr_setsigmask .Nm posix_spawnattr_getsigmask .Nd set or get the .Em spawn-sigmask attribute on a .Em posix_spawnattr_t .Sh SYNOPSIS .Fd #include <spawn.h> .Ft int .Fo posix_spawnattr_setsigmask .Fa "posix_spawnattr_t *restrict attr" .Fa "const sigset_t *restrict sigmask" .Fc .Ft int .Fo posix_spawnattr_getsigmask .Fa "const posix_spawnattr_t *restrict attr" .Fa "sigset_t *restrict sigmask" .Fc .Sh DESCRIPTION The .Fn posix_spawnattr_setsigmask function sets the .Fa sigmask on the attributes object referenced by .Fa attr .

p The .Fn posix_spawnattr_getsigmask function retrieves the .Fa sigmask on the attributes object referenced by .Fa attr .

p The argument .Fa sigmask is the initial signal mask to be set for the new process on creation if the .Em POSIX_SPAWN_SETSIGMASK flag is set in the .Em posix_spawnattr_t . It's default value must be set via a call to .Xr posix_spawnattr_setflags 3 or the behaviour is undefined. .Sh RETURN VALUES On success, these functions return 0; on failure they return an error number from n errno.h . Additionally, if successful, .Fn posix_spawnattr_getsigmask will modify the contents of the .Fa sigmask parameter with the current attribute value. .Sh ERRORS These functions may fail if: l -tag -width Er ==========
t Bq Er EINVAL The value specified by .Fa attr is invalid. ==========
t Bq Er EINVAL The value of .Fa attr is invalid. .El .Sh SEE ALSO .Xr posix_spawn 2 , .Xr posix_spawnp 2 , .Xr posix_spawnattr_init 3 , .Xr posix_spawnattr_destroy 3 , .Xr posix_spawnattr_setflags 3 .Sh STANDARDS .St -susv3 [SPN] .Sh HISTORY The .Fn posix_spawnattr_setsigmask and .Fn posix_spawnattr_getsigmask function calls appeared in .St -susv3 [SPN] .