| /* Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You under the Apache License, Version 2.0 |
| * (the "License"); you may not use this file except in compliance with |
| * the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| /* |
| * etch_queue_apr.h |
| * based on apr_queue, with timeouts added on push and pop waits. |
| */ |
| |
| #ifndef ETCHQUEUEAPR_H |
| #define ETCHQUEUEAPR_H |
| |
| #define ETCHQUEUE_CLEARING_CLOSED_QUEUE (-2) |
| |
| #include "etch_object.h" |
| #include "apr_thread_cond.h" |
| |
| |
| #ifdef __cplusplus |
| extern "C" { |
| #endif |
| |
| /** |
| * etch_apr_queue_t |
| * same as the private apr_queue_t |
| */ |
| typedef struct etch_apr_queue_t |
| { |
| void **data; |
| unsigned int nelts; /**< # elements */ |
| unsigned int in; /**< next empty location */ |
| unsigned int out; /**< next filled location */ |
| unsigned int bounds;/**< max size of queue */ |
| unsigned int full_waiters; |
| unsigned int empty_waiters; |
| apr_thread_mutex_t *one_big_mutex; |
| apr_thread_cond_t *not_empty; |
| apr_thread_cond_t *not_full; |
| int terminated; |
| |
| } etch_apr_queue_t; |
| |
| |
| apr_status_t etch_apr_queue_create(etch_apr_queue_t **queue, |
| unsigned int queue_capacity, apr_pool_t *a); |
| |
| apr_status_t etch_apr_queue_push(etch_apr_queue_t *queue, |
| apr_interval_time_t timeout, void *data); |
| |
| apr_status_t etch_apr_queue_pop(etch_apr_queue_t *queue, |
| apr_interval_time_t timeout, void **data); |
| |
| apr_status_t etch_apr_queue_trypush(etch_apr_queue_t *queue, void *data); |
| |
| apr_status_t etch_apr_queue_trypop(etch_apr_queue_t *queue, void **data); |
| |
| unsigned int etch_apr_queue_size(etch_apr_queue_t*); |
| |
| apr_status_t etch_apr_queue_interrupt_all(etch_apr_queue_t*); |
| |
| apr_status_t etch_apr_queue_unsafe_interrupt_all(etch_apr_queue_t*); |
| |
| apr_status_t etch_apr_queue_term(etch_apr_queue_t *queue); |
| |
| apr_status_t etch_apr_queue_unsafeclose(etch_apr_queue_t*); |
| |
| apr_status_t etch_apr_queue_trylock(etch_apr_queue_t*); |
| |
| apr_status_t etch_apr_queue_lock(etch_apr_queue_t*); |
| |
| apr_status_t etch_apr_queue_unlock(etch_apr_queue_t*); |
| |
| #ifdef __cplusplus |
| } |
| #endif |
| |
| #endif /* ETCHQUEUEAPR_H */ |