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 /* 39 * run_loop.c 40 * 41 * Created by Matthias Ringwald on 6/6/09. 42 */ 43 44 #include "btstack_run_loop.h" 45 46 #include <stdio.h> 47 #include <stdlib.h> // exit() 48 49 50 #include "btstack_debug.h" 51 #include "btstack_config.h" 52 53 static const btstack_run_loop_t * the_run_loop = NULL; 54 55 extern const btstack_run_loop_t btstack_run_loop_embedded; 56 57 // assert run loop initialized 58 static void btstack_run_loop_assert(void){ 59 if (!the_run_loop){ 60 log_error("ERROR: run_loop function called before btstack_run_loop_init!"); 61 while(1); 62 } 63 } 64 65 66 void btstack_run_loop_set_timer_handler(btstack_timer_source_t *ts, void (*process)(btstack_timer_source_t *_ts)){ 67 ts->process = process; 68 }; 69 70 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)){ 71 ds->process = process; 72 }; 73 74 void btstack_run_loop_set_data_source_fd(btstack_data_source_t *ds, int fd){ 75 ds->fd = fd; 76 } 77 78 int btstack_run_loop_get_data_source_fd(btstack_data_source_t *ds){ 79 return ds->fd; 80 } 81 82 void btstack_run_loop_enable_data_source_callbacks(btstack_data_source_t *ds, uint16_t callbacks){ 83 btstack_run_loop_assert(); 84 if (the_run_loop->enable_data_source_callbacks){ 85 return the_run_loop->enable_data_source_callbacks(ds, callbacks); 86 } else { 87 log_error("btstack_run_loop_remove_data_source not implemented"); 88 } 89 } 90 91 void btstack_run_loop_disable_data_source_callbacks(btstack_data_source_t *ds, uint16_t callbacks){ 92 btstack_run_loop_assert(); 93 if (the_run_loop->disable_data_source_callbacks){ 94 return the_run_loop->disable_data_source_callbacks(ds, callbacks); 95 } else { 96 log_error("btstack_run_loop_disable_data_source_callbacks not implemented"); 97 } 98 } 99 100 /** 101 * Add data_source to run_loop 102 */ 103 void btstack_run_loop_add_data_source(btstack_data_source_t *ds){ 104 btstack_run_loop_assert(); 105 if (the_run_loop->add_data_source){ 106 the_run_loop->add_data_source(ds); 107 } else { 108 log_error("btstack_run_loop_add_data_source not implemented"); 109 } 110 } 111 112 /** 113 * Remove data_source from run loop 114 */ 115 int btstack_run_loop_remove_data_source(btstack_data_source_t *ds){ 116 btstack_run_loop_assert(); 117 if (the_run_loop->remove_data_source){ 118 return the_run_loop->remove_data_source(ds); 119 } else { 120 log_error("btstack_run_loop_remove_data_source not implemented"); 121 return 0; 122 } 123 } 124 125 void btstack_run_loop_set_timer(btstack_timer_source_t *a, uint32_t timeout_in_ms){ 126 btstack_run_loop_assert(); 127 the_run_loop->set_timer(a, timeout_in_ms); 128 } 129 130 /** 131 * @brief Set context for this timer 132 */ 133 void btstack_run_loop_set_timer_context(btstack_timer_source_t *ts, void * context){ 134 ts->context = context; 135 } 136 137 /** 138 * @brief Get context for this timer 139 */ 140 void * btstack_run_loop_get_timer_context(btstack_timer_source_t *ts){ 141 return ts->context; 142 } 143 144 /** 145 * Add timer to run_loop (keep list sorted) 146 */ 147 void btstack_run_loop_add_timer(btstack_timer_source_t *ts){ 148 btstack_run_loop_assert(); 149 the_run_loop->add_timer(ts); 150 } 151 152 /** 153 * Remove timer from run loop 154 */ 155 int btstack_run_loop_remove_timer(btstack_timer_source_t *ts){ 156 btstack_run_loop_assert(); 157 return the_run_loop->remove_timer(ts); 158 } 159 160 /** 161 * @brief Get current time in ms 162 */ 163 uint32_t btstack_run_loop_get_time_ms(void){ 164 btstack_run_loop_assert(); 165 return the_run_loop->get_time_ms(); 166 } 167 168 169 void btstack_run_loop_timer_dump(void){ 170 btstack_run_loop_assert(); 171 the_run_loop->dump_timer(); 172 } 173 174 /** 175 * Execute run_loop 176 */ 177 void btstack_run_loop_execute(void){ 178 btstack_run_loop_assert(); 179 the_run_loop->execute(); 180 } 181 182 // init must be called before any other run_loop call 183 void btstack_run_loop_init(const btstack_run_loop_t * run_loop){ 184 if (the_run_loop){ 185 log_error("ERROR: run loop initialized twice!"); 186 while(1); 187 } 188 the_run_loop = run_loop; 189 the_run_loop->init(); 190 } 191 192