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$FreeBSD$
.Dd March 24, 2008 .Dt POSIX_SPAWNATTR_INIT 3 .Os .Sh NAME .Nm posix_spawnattr_init , .Nm posix_spawnattr_destroy .Nd "initialize and destroy spawn attributes object" .Sh LIBRARY .Lb libc .Sh SYNOPSIS n spawn.h .Ft int .Fn posix_spawnattr_init "posix_spawnattr_t * attr" .Ft int .Fn posix_spawnattr_destroy "posix_spawnattr_t * attr" .Sh DESCRIPTION The .Fn posix_spawnattr_init function initializes a spawn attributes object .Fa attr with the default value for all of the individual attributes used by the implementation. Initializing an already initialized spawn attributes object may cause memory to be leaked.
p The .Fn posix_spawnattr_destroy function destroys a spawn attributes object. A destroyed .Fa attr attributes object can be reinitialized using .Fn posix_spawnattr_init . The object should not be used after it has been destroyed.
p A spawn attributes object is of type .Vt posix_spawnattr_t (defined in n spawn.h ) and is used to specify the inheritance of process attributes across a spawn operation.
p The resulting spawn attributes object (possibly modified by setting individual attribute values), is used to modify the behavior of .Fn posix_spawn or .Fn posix_spawnp . After a spawn attributes object has been used to spawn a process by a call to a .Fn posix_spawn or .Fn posix_spawnp , any function affecting the attributes object (including destruction) will not affect any process that has been spawned in this way. .Sh RETURN VALUES Upon successful completion, .Fn posix_spawnattr_init and .Fn posix_spawnattr_destroy return zero; otherwise, an error number is returned to indicate the error. .Sh ERRORS The .Fn posix_spawnattr_init function will fail if: l -tag -width Er t Bq Er ENOMEM Insufficient memory exists to initialize the spawn file actions object. .El .Sh SEE ALSO .Xr posix_spawn 3 , .Xr posix_spawnp 3 .Sh STANDARDS The .Fn posix_spawnattr_init and .Fn posix_spawnattr_destroy functions conform to .St -p1003.1-2001 . .Sh HISTORY The .Fn posix_spawnattr_init and .Fn posix_spawnattr_destroy functions first appeared in .Fx 8.0 . .Sh AUTHORS .An Ed Schouten Aq ed@FreeBSD.org