1 /*
2 * Copyright 2008-2014 Arsen Chaloyan
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 *
16 * $Id: mrcp_engine_iface.c 2136 2014-07-04 06:33:36Z achaloyan@gmail.com $
17 */
18
19 #include "mrcp_engine_iface.h"
20 #include "apt_log.h"
21
22 /** Destroy engine */
mrcp_engine_virtual_destroy(mrcp_engine_t * engine)23 apt_bool_t mrcp_engine_virtual_destroy(mrcp_engine_t *engine)
24 {
25 return engine->method_vtable->destroy(engine);
26 }
27
28 /** Open engine */
mrcp_engine_virtual_open(mrcp_engine_t * engine)29 apt_bool_t mrcp_engine_virtual_open(mrcp_engine_t *engine)
30 {
31 if(engine->is_open == FALSE) {
32 apt_log(APT_LOG_MARK,APT_PRIO_INFO,"Open Engine [%s]",engine->id);
33 return engine->method_vtable->open(engine);
34 }
35 return FALSE;
36 }
37
38 /** Response to open engine request */
mrcp_engine_on_open(mrcp_engine_t * engine,apt_bool_t status)39 void mrcp_engine_on_open(mrcp_engine_t *engine, apt_bool_t status)
40 {
41 apt_log(APT_LOG_MARK,APT_PRIO_DEBUG,"Engine Opened [%s] status [%s]",
42 engine->id,
43 status == TRUE ? "success" : "failure");
44 engine->is_open = status;
45 }
46
47 /** Close engine */
mrcp_engine_virtual_close(mrcp_engine_t * engine)48 apt_bool_t mrcp_engine_virtual_close(mrcp_engine_t *engine)
49 {
50 if(engine->is_open == TRUE) {
51 engine->is_open = FALSE;
52 apt_log(APT_LOG_MARK,APT_PRIO_INFO,"Close Engine [%s]",engine->id);
53 return engine->method_vtable->close(engine);
54 }
55 return FALSE;
56 }
57
58 /** Response to close engine request */
mrcp_engine_on_close(mrcp_engine_t * engine)59 void mrcp_engine_on_close(mrcp_engine_t *engine)
60 {
61 apt_log(APT_LOG_MARK,APT_PRIO_DEBUG,"Engine Closed [%s]",engine->id);
62 engine->is_open = FALSE;
63 }
64
65 /** Create engine channel */
mrcp_engine_channel_virtual_create(mrcp_engine_t * engine,mrcp_version_e mrcp_version,apr_pool_t * pool)66 mrcp_engine_channel_t* mrcp_engine_channel_virtual_create(mrcp_engine_t *engine, mrcp_version_e mrcp_version, apr_pool_t *pool)
67 {
68 mrcp_engine_channel_t *channel;
69 if(engine->is_open != TRUE) {
70 return NULL;
71 }
72 if(engine->config->max_channel_count && engine->cur_channel_count >= engine->config->max_channel_count) {
73 apt_log(APT_LOG_MARK, APT_PRIO_NOTICE, "Maximum channel count %"APR_SIZE_T_FMT" exceeded for engine [%s]",
74 engine->config->max_channel_count, engine->id);
75 return NULL;
76 }
77 channel = engine->method_vtable->create_channel(engine,pool);
78 if(channel) {
79 channel->mrcp_version = mrcp_version;
80 engine->cur_channel_count++;
81 }
82 return channel;
83 }
84
85 /** Destroy engine channel */
mrcp_engine_channel_virtual_destroy(mrcp_engine_channel_t * channel)86 apt_bool_t mrcp_engine_channel_virtual_destroy(mrcp_engine_channel_t *channel)
87 {
88 mrcp_engine_t *engine = channel->engine;
89 if(engine->cur_channel_count) {
90 engine->cur_channel_count--;
91 }
92 return channel->method_vtable->destroy(channel);
93 }
94
95 /** Allocate engine config */
mrcp_engine_config_alloc(apr_pool_t * pool)96 mrcp_engine_config_t* mrcp_engine_config_alloc(apr_pool_t *pool)
97 {
98 mrcp_engine_config_t *config = apr_palloc(pool,sizeof(mrcp_engine_config_t));
99 config->max_channel_count = 0;
100 config->params = NULL;
101 return config;
102 }
103