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 #ifdef EMBEDDED 62 exit(10); 63 #else 64 while(1); 65 #endif 66 } 67 } 68 69 70 void btstack_run_loop_set_timer_handler(btstack_timer_source_t *ts, void (*process)(btstack_timer_source_t *_ts)){ 71 ts->process = process; 72 }; 73 74 void btstack_run_loop_set_data_source_handler(btstack_data_source_t *ds, int (*process)(btstack_data_source_t *_ds)){ 75 ds->process = process; 76 }; 77 78 79 /** 80 * Add data_source to run_loop 81 */ 82 void btstack_run_loop_add_data_source(btstack_data_source_t *ds){ 83 btstack_run_loop_assert(); 84 if (the_run_loop->add_data_source){ 85 the_run_loop->add_data_source(ds); 86 } else { 87 log_error("btstack_run_loop_add_data_source not implemented"); 88 } 89 } 90 91 /** 92 * Remove data_source from run loop 93 */ 94 int btstack_run_loop_remove_data_source(btstack_data_source_t *ds){ 95 btstack_run_loop_assert(); 96 if (the_run_loop->remove_data_source){ 97 return the_run_loop->remove_data_source(ds); 98 } else { 99 log_error("btstack_run_loop_remove_data_source not implemented"); 100 return 0; 101 } 102 } 103 104 void btstack_run_loop_set_timer(btstack_timer_source_t *a, uint32_t timeout_in_ms){ 105 btstack_run_loop_assert(); 106 the_run_loop->set_timer(a, timeout_in_ms); 107 } 108 109 /** 110 * Add timer to run_loop (keep list sorted) 111 */ 112 void btstack_run_loop_add_timer(btstack_timer_source_t *ts){ 113 btstack_run_loop_assert(); 114 the_run_loop->add_timer(ts); 115 } 116 117 /** 118 * Remove timer from run loop 119 */ 120 int btstack_run_loop_remove_timer(btstack_timer_source_t *ts){ 121 btstack_run_loop_assert(); 122 return the_run_loop->remove_timer(ts); 123 } 124 125 /** 126 * @brief Get current time in ms 127 */ 128 uint32_t btstack_run_loop_get_time_ms(void){ 129 btstack_run_loop_assert(); 130 return the_run_loop->get_time_ms(); 131 } 132 133 134 void btstack_run_loop_timer_dump(void){ 135 btstack_run_loop_assert(); 136 the_run_loop->dump_timer(); 137 } 138 139 /** 140 * Execute run_loop 141 */ 142 void btstack_run_loop_execute(void){ 143 btstack_run_loop_assert(); 144 the_run_loop->execute(); 145 } 146 147 // init must be called before any other run_loop call 148 void btstack_run_loop_init(const btstack_run_loop_t * run_loop){ 149 if (the_run_loop){ 150 log_error("ERROR: run loop initialized twice!"); 151 #ifdef EMBEDDED 152 while(1); 153 #else 154 exit(10); 155 #endif 156 } 157 the_run_loop = run_loop; 158 the_run_loop->init(); 159 } 160 161