posix_spawnattr_setspecialport_np3
Set special ports on a posix_spawnattr_t
Usage
#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.
Overview
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.
Releases
112 releases since Mac OS X 10.5; the text changed 1 time.