kern_return_t
wait_queue_sub_init(
wait_queue_set_t wqset,
int policy)
{
return wait_queue_set_init(wqset, policy);
}
/*
* Routine: ipc_mqueue_init
* Purpose:
* Initialize a newly-allocated message queue.
*/
void
ipc_mqueue_init(
ipc_mqueue_t mqueue,
boolean_t is_set)
{
if (is_set) {
wait_queue_set_init(&mqueue->imq_set_queue, SYNC_POLICY_FIFO|SYNC_POLICY_PREPOST);
} else {
wait_queue_init(&mqueue->imq_wait_queue, SYNC_POLICY_FIFO);
ipc_kmsg_queue_init(&mqueue->imq_messages);
mqueue->imq_seqno = 0;
mqueue->imq_msgcount = 0;
mqueue->imq_qlimit = MACH_PORT_QLIMIT_DEFAULT;
mqueue->imq_fullwaiters = FALSE;
}
}
/*
* Routine: wait_queue_set_alloc
* Purpose:
* Allocate and initialize a wait queue set for
* use outside of the mach part of the kernel.
* Conditions:
* May block.
* Returns:
* The allocated and initialized wait queue set
* WAIT_QUEUE_SET_NULL if there is a resource shortage
*/
wait_queue_set_t
wait_queue_set_alloc(
int policy)
{
wait_queue_set_t wq_set;
wq_set = (wait_queue_set_t) zalloc(_wait_queue_set_zone);
if (wq_set != WAIT_QUEUE_SET_NULL) {
kern_return_t ret;
ret = wait_queue_set_init(wq_set, policy);
if (ret != KERN_SUCCESS) {
zfree(_wait_queue_set_zone, wq_set);
wq_set = WAIT_QUEUE_SET_NULL;
}
}
return wq_set;
}
/*
* Routine: wait_queue_set_alloc
* Purpose:
* Allocate and initialize a wait queue set for
* use outside of the mach part of the kernel.
* Conditions:
* May block.
* Returns:
* The allocated and initialized wait queue set
* WAIT_QUEUE_SET_NULL if there is a resource shortage
*/
wait_queue_set_t
wait_queue_set_alloc(
int policy)
{
wait_queue_set_t wq_set;
wq_set = (wait_queue_set_t) kalloc(sizeof(struct wait_queue_set));
if (wq_set != WAIT_QUEUE_SET_NULL) {
kern_return_t ret;
ret = wait_queue_set_init(wq_set, policy);
if (ret != KERN_SUCCESS) {
kfree((vm_offset_t)wq_set, sizeof(struct wait_queue_set));
wq_set = WAIT_QUEUE_SET_NULL;
}
}
return wq_set;
}
