diff options
Diffstat (limited to 'gcell/lib/runtime/gc_jd_queue.c')
-rw-r--r-- | gcell/lib/runtime/gc_jd_queue.c | 78 |
1 files changed, 0 insertions, 78 deletions
diff --git a/gcell/lib/runtime/gc_jd_queue.c b/gcell/lib/runtime/gc_jd_queue.c deleted file mode 100644 index aeabd305a..000000000 --- a/gcell/lib/runtime/gc_jd_queue.c +++ /dev/null @@ -1,78 +0,0 @@ -/* -*- c -*- */ -/* - * Copyright 2007 Free Software Foundation, Inc. - * - * This file is part of GNU Radio - * - * GNU Radio is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 3, or (at your option) - * any later version. - * - * GNU Radio is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License along - * with this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. - */ - -#include <gcell/gc_jd_queue.h> -#include <gcell/memory_barrier.h> -#include <mutex_init.h> -#include <mutex_lock.h> -#include <mutex_unlock.h> - -void -gc_jd_queue_init(gc_jd_queue_t *q) -{ - _mutex_init(ptr_to_ea(&q->mutex)); - q->head = 0; - q->tail = 0; - smp_wmb(); -} - -void -gc_jd_queue_enqueue(gc_jd_queue_t *q, gc_job_desc_t *item) -{ - item->sys.next = 0; - _mutex_lock(ptr_to_ea(&q->mutex)); - smp_rmb(); // import barrier - - if (q->tail == 0){ // currently empty - q->tail = q->head = jdp_to_ea(item); - } - else { // not empty, append - ea_to_jdp(q->tail)->sys.next = jdp_to_ea(item); - q->tail = jdp_to_ea(item); - } - - smp_wmb(); // orders stores above before clearing of mutex - _mutex_unlock(ptr_to_ea(&q->mutex)); -} - -gc_job_desc_t * -gc_jd_queue_dequeue(gc_jd_queue_t *q) -{ - _mutex_lock(ptr_to_ea(&q->mutex)); - smp_rmb(); // import barrier - - gc_eaddr_t item_ea = q->head; - if (item_ea == 0){ // empty - _mutex_unlock(ptr_to_ea(&q->mutex)); - return 0; - } - - q->head = ea_to_jdp(item_ea)->sys.next; - if (q->head == 0) // now emtpy - q->tail = 0; - - gc_job_desc_t *item = ea_to_jdp(item_ea); - item->sys.next = 0; - - smp_wmb(); // orders stores above before clearing of mutex - _mutex_unlock(ptr_to_ea(&q->mutex)); - return item; -} |