2 *------------------------------------------------------------------
3 * svm_queue.h - shared-memory queues
5 * Copyright (c) 2009 Cisco and/or its affiliates.
6 * Licensed under the Apache License, Version 2.0 (the "License");
7 * you may not use this file except in compliance with the License.
8 * You may obtain a copy of the License at:
10 * http://www.apache.org/licenses/LICENSE-2.0
12 * Unless required by applicable law or agreed to in writing, software
13 * distributed under the License is distributed on an "AS IS" BASIS,
14 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15 * See the License for the specific language governing permissions and
16 * limitations under the License.
17 *------------------------------------------------------------------
20 #ifndef included_svm_queue_h
21 #define included_svm_queue_h
25 typedef struct _svm_queue
27 pthread_mutex_t mutex; /* 8 bytes */
28 pthread_cond_t condvar; /* 8 bytes */
35 int signal_when_queue_non_empty;
39 svm_queue_t *svm_queue_init (int nels,
42 int signal_when_queue_non_empty);
43 void svm_queue_free (svm_queue_t * q);
44 int svm_queue_add (svm_queue_t * q, u8 * elem, int nowait);
45 int svm_queue_add2 (svm_queue_t * q, u8 * elem, u8 * elem2, int nowait);
46 int svm_queue_sub (svm_queue_t * q, u8 * elem, int nowait);
47 int svm_queue_sub2 (svm_queue_t * q, u8 * elem);
48 void svm_queue_lock (svm_queue_t * q);
49 void svm_queue_unlock (svm_queue_t * q);
50 int svm_queue_is_full (svm_queue_t * q);
51 int svm_queue_add_nolock (svm_queue_t * q, u8 * elem);
52 int svm_queue_sub_raw (svm_queue_t * q, u8 * elem);
53 int svm_queue_add_raw (svm_queue_t * q, u8 * elem);
56 * DEPRECATED please use svm_queue_t instead
58 typedef svm_queue_t unix_shared_memory_queue_t;
60 #endif /* included_svm_queue_h */
63 * fd.io coding-style-patch-verification: ON
66 * eval: (c-set-style "gnu")