//The following operations are assumed to be local
error_t remote_fifo_init(struct remote_fifo_s *remote_fifo, size_t slot_nbr, size_t size)
{
kmem_req_t req;
size_t slot_size;
slot_size = size;
req.type = KMEM_GENERIC;
req.flags = AF_KERNEL | AF_ZERO;
req.size = slot_size * slot_nbr;
remote_fifo->tbl = kmem_alloc(&req);
if(remote_fifo->tbl == NULL)
return ENOMEM;
remote_fifo->wridx = 0;
remote_fifo->rdidx = 0;
remote_fifo->slot_nbr = slot_nbr;
remote_fifo->slot_size = slot_size;
remote_fifo->item_size = size;
mcs_lock_init(&remote_fifo->lock, "Remote fifo");
return 0;
}
int bthread_barrier_init(bthread_barrier_t* b, const bthread_barrierattr_t* a, int count)
{
struct mcs_lock_qnode local_qn = {0};
memset(b->local_sense,0,sizeof(b->local_sense));
b->sense = 0;
b->nprocs = b->count = count;
mcs_lock_init(&b->lock);
return 0;
}
/* TODO: put lock name as argument
* and reconstruct each wait_queue name */
error_t rwlock_init(struct rwlock_s *rwlock)
{
//spinlock_init(&rwlock->lock,"RWLOCK");
mcs_lock_init(&rwlock->lock, "RWLOCK");
rwlock->signature = RWLOCK_ID;
rwlock->count = 0;
wait_queue_init(&rwlock->rd_wait_queue, "RWLOCK: Rreaders");
wait_queue_init(&rwlock->wr_wait_queue, "RWLOCK: Writers");
return 0;
}
void init_arc(struct arsc_channel* ac)
{
// Set up the front ring for the general syscall ring
// and the back ring for the general sysevent ring
mcs_lock_init(&ac->aclock);
ac->ring_page = (syscall_sring_t*)sys_init_arsc();
FRONT_RING_INIT(&ac->sysfr, ac->ring_page, SYSCALLRINGSIZE);
//BACK_RING_INIT(&syseventbackring, &(__procdata.syseventring), SYSEVENTRINGSIZE);
//TODO: eventually rethink about desc pools, they are here but no longer necessary
POOL_INIT(&syscall_desc_pool, MAX_SYSCALLS);
POOL_INIT(&async_desc_pool, MAX_ASYNCCALLS);
}
