NAME
posix_spawnattr_setspecialport_np
posix_spawnattr_setexceptionports_np —
set special ports on a
posix_spawnattr_t
SYNOPSIS
#include
<spawn.h>
int
posix_spawnattr_setspecialport_np(posix_spawnattr_t
*attr, mach_port_t new_port, int
which);
int
posix_spawnattr_setexceptionports_np(posix_spawnattr_t
*attr, exception_mask_t mask,
mach_port_t new_port,
exception_behavior_t behavior,
thread_state_flavor_t flavor);
IMPORTANT
These functions represent an Apple extension to posix_spawn(2) and posix_spawnp(2), and as such should not be used by programs intending their code to be portable to other platforms.
DESCRIPTION
The
posix_spawnattr_setspecialport_np()
function sets a new value for a Mach special port into the
value referenced by attr to the port referenced by
new_port for a port value of
which, as if the new process had called
task_set_special_port().
The
posix_spawnattr_setexceptionports_np()
function sets the Mach port to
new_port for a number of exception ports represented
by the bitfield mask, and sets the new default
behavior and default flavor, as
if the new process had called
task_set_exception_ports().
RETURN VALUES
On success, these functions return 0; on failure they return an
error number from
<errno.h>.
ERRORS
These functions may fail if:
- [
EINVAL] - The value specified by attr is invalid.
- [
EINVAL] - The value of attr is invalid.
- [
ENOMEM] - Insufficient resources exist to set the ports.
SEE ALSO
posix_spawn(2), posix_spawnp(2), posix_spawnattr_init(3), posix_spawnattr_destroy(3)
STANDARDS
Nonstandard
HISTORY
The posix_spawnattr_setspecialport_np()
and posix_spawnattr_setexceptionports_np() function
calls appeared in Mac OS X.