1 /* 2 * Copyright (C) 2014 BlueKitchen GmbH 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. Neither the name of the copyright holders nor the names of 14 * contributors may be used to endorse or promote products derived 15 * from this software without specific prior written permission. 16 * 4. Any redistribution, use, or modification is done solely for 17 * personal benefit and not for any commercial purpose or for 18 * monetary gain. 19 * 20 * THIS SOFTWARE IS PROVIDED BY BLUEKITCHEN GMBH AND CONTRIBUTORS 21 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 22 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 23 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL MATTHIAS 24 * RINGWALD OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 25 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 26 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS 27 * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 28 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 29 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF 30 * THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 * 33 * Please inquire about commercial licensing options at 34 * [email protected] 35 * 36 */ 37 38 #define __BTSTACK_FILE__ "btstack_run_loop.c" 39 40 /* 41 * run_loop.c 42 * 43 * Created by Matthias Ringwald on 6/6/09. 44 */ 45 46 #include "btstack_run_loop.h" 47 48 #include <stdio.h> 49 #include <stdlib.h> // exit() 50 51 52 #include "btstack_debug.h" 53 #include "btstack_config.h" 54 55 static const btstack_run_loop_t * the_run_loop = NULL; 56 57 extern const btstack_run_loop_t btstack_run_loop_embedded; 58 59 // assert run loop initialized 60 static void btstack_run_loop_assert(void){ 61 if (!the_run_loop){ 62 log_error("ERROR: run_loop function called before btstack_run_loop_init!"); 63 while(1); 64 } 65 } 66 67 68 void btstack_run_loop_set_timer_handler(btstack_timer_source_t *ts, void (*process)(btstack_timer_source_t *_ts)){ 69 ts->process = process; 70 }; 71 72 void btstack_run_loop_set_data_source_handler(btstack_data_source_t *ds, void (*process)(btstack_data_source_t *_ds, btstack_data_source_callback_type_t callback_type)){ 73 ds->process = process; 74 }; 75 76 void btstack_run_loop_set_data_source_fd(btstack_data_source_t *ds, int fd){ 77 ds->fd = fd; 78 } 79 80 int btstack_run_loop_get_data_source_fd(btstack_data_source_t *ds){ 81 return ds->fd; 82 } 83 84 void btstack_run_loop_enable_data_source_callbacks(btstack_data_source_t *ds, uint16_t callbacks){ 85 btstack_run_loop_assert(); 86 if (the_run_loop->enable_data_source_callbacks){ 87 the_run_loop->enable_data_source_callbacks(ds, callbacks); 88 } else { 89 log_error("btstack_run_loop_remove_data_source not implemented"); 90 } 91 } 92 93 void btstack_run_loop_disable_data_source_callbacks(btstack_data_source_t *ds, uint16_t callbacks){ 94 btstack_run_loop_assert(); 95 if (the_run_loop->disable_data_source_callbacks){ 96 the_run_loop->disable_data_source_callbacks(ds, callbacks); 97 } else { 98 log_error("btstack_run_loop_disable_data_source_callbacks not implemented"); 99 } 100 } 101 102 /** 103 * Add data_source to run_loop 104 */ 105 void btstack_run_loop_add_data_source(btstack_data_source_t *ds){ 106 btstack_run_loop_assert(); 107 if (the_run_loop->add_data_source){ 108 the_run_loop->add_data_source(ds); 109 } else { 110 log_error("btstack_run_loop_add_data_source not implemented"); 111 } 112 } 113 114 /** 115 * Remove data_source from run loop 116 */ 117 int btstack_run_loop_remove_data_source(btstack_data_source_t *ds){ 118 btstack_run_loop_assert(); 119 if (the_run_loop->remove_data_source){ 120 return the_run_loop->remove_data_source(ds); 121 } else { 122 log_error("btstack_run_loop_remove_data_source not implemented"); 123 return 0; 124 } 125 } 126 127 void btstack_run_loop_set_timer(btstack_timer_source_t *a, uint32_t timeout_in_ms){ 128 btstack_run_loop_assert(); 129 the_run_loop->set_timer(a, timeout_in_ms); 130 } 131 132 /** 133 * @brief Set context for this timer 134 */ 135 void btstack_run_loop_set_timer_context(btstack_timer_source_t *ts, void * context){ 136 ts->context = context; 137 } 138 139 /** 140 * @brief Get context for this timer 141 */ 142 void * btstack_run_loop_get_timer_context(btstack_timer_source_t *ts){ 143 return ts->context; 144 } 145 146 /** 147 * Add timer to run_loop (keep list sorted) 148 */ 149 void btstack_run_loop_add_timer(btstack_timer_source_t *ts){ 150 btstack_run_loop_assert(); 151 the_run_loop->add_timer(ts); 152 } 153 154 /** 155 * Remove timer from run loop 156 */ 157 int btstack_run_loop_remove_timer(btstack_timer_source_t *ts){ 158 btstack_run_loop_assert(); 159 return the_run_loop->remove_timer(ts); 160 } 161 162 /** 163 * @brief Get current time in ms 164 */ 165 uint32_t btstack_run_loop_get_time_ms(void){ 166 btstack_run_loop_assert(); 167 return the_run_loop->get_time_ms(); 168 } 169 170 171 void btstack_run_loop_timer_dump(void){ 172 btstack_run_loop_assert(); 173 the_run_loop->dump_timer(); 174 } 175 176 /** 177 * Execute run_loop 178 */ 179 void btstack_run_loop_execute(void){ 180 btstack_run_loop_assert(); 181 the_run_loop->execute(); 182 } 183 184 // init must be called before any other run_loop call 185 void btstack_run_loop_init(const btstack_run_loop_t * run_loop){ 186 if (the_run_loop){ 187 log_error("ERROR: run loop initialized twice!"); 188 while(1); 189 } 190 the_run_loop = run_loop; 191 the_run_loop->init(); 192 } 193 194