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, int (*process)(btstack_data_source_t *_ds)){ 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 83 /** 84 * Add data_source to run_loop 85 */ 86 void btstack_run_loop_add_data_source(btstack_data_source_t *ds){ 87 btstack_run_loop_assert(); 88 if (the_run_loop->add_data_source){ 89 the_run_loop->add_data_source(ds); 90 } else { 91 log_error("btstack_run_loop_add_data_source not implemented"); 92 } 93 } 94 95 /** 96 * Remove data_source from run loop 97 */ 98 int btstack_run_loop_remove_data_source(btstack_data_source_t *ds){ 99 btstack_run_loop_assert(); 100 if (the_run_loop->remove_data_source){ 101 return the_run_loop->remove_data_source(ds); 102 } else { 103 log_error("btstack_run_loop_remove_data_source not implemented"); 104 return 0; 105 } 106 } 107 108 void btstack_run_loop_set_timer(btstack_timer_source_t *a, uint32_t timeout_in_ms){ 109 btstack_run_loop_assert(); 110 the_run_loop->set_timer(a, timeout_in_ms); 111 } 112 113 /** 114 * @brief Set context for this timer 115 */ 116 void btstack_run_loop_set_timer_context(btstack_timer_source_t *ts, void * context){ 117 ts->context = context; 118 } 119 120 /** 121 * @brief Get context for this timer 122 */ 123 void * btstack_run_loop_get_timer_context(btstack_timer_source_t *ts){ 124 return ts->context; 125 } 126 127 /** 128 * Add timer to run_loop (keep list sorted) 129 */ 130 void btstack_run_loop_add_timer(btstack_timer_source_t *ts){ 131 btstack_run_loop_assert(); 132 the_run_loop->add_timer(ts); 133 } 134 135 /** 136 * Remove timer from run loop 137 */ 138 int btstack_run_loop_remove_timer(btstack_timer_source_t *ts){ 139 btstack_run_loop_assert(); 140 return the_run_loop->remove_timer(ts); 141 } 142 143 /** 144 * @brief Get current time in ms 145 */ 146 uint32_t btstack_run_loop_get_time_ms(void){ 147 btstack_run_loop_assert(); 148 return the_run_loop->get_time_ms(); 149 } 150 151 152 void btstack_run_loop_timer_dump(void){ 153 btstack_run_loop_assert(); 154 the_run_loop->dump_timer(); 155 } 156 157 /** 158 * Execute run_loop 159 */ 160 void btstack_run_loop_execute(void){ 161 btstack_run_loop_assert(); 162 the_run_loop->execute(); 163 } 164 165 // init must be called before any other run_loop call 166 void btstack_run_loop_init(const btstack_run_loop_t * run_loop){ 167 if (the_run_loop){ 168 log_error("ERROR: run loop initialized twice!"); 169 while(1); 170 } 171 the_run_loop = run_loop; 172 the_run_loop->init(); 173 } 174 175