text: /*
   * Copyright (C) 2014 BlueKitchen GmbH
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions
   * are met:
   *
   * 1. Redistributions of source code must retain the above copyright
   *    notice, this list of conditions and the following disclaimer.
   * 2. Redistributions in binary form must reproduce the above copyright
   *    notice, this list of conditions and the following disclaimer in the
   *    documentation and/or other materials provided with the distribution.
   * 3. Neither the name of the copyright holders nor the names of
   *    contributors may be used to endorse or promote products derived
   *    from this software without specific prior written permission.
   * 4. Any redistribution, use, or modification is done solely for
   *    personal benefit and not for any commercial purpose or for
   *    monetary gain.
   *
   * THIS SOFTWARE IS PROVIDED BY BLUEKITCHEN GMBH AND CONTRIBUTORS
   * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
   * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
   * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL MATTHIAS
   * RINGWALD OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
   * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
   * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
   * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
   * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
   * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
   * THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   * SUCH DAMAGE.
   *
   * Please inquire about commercial licensing options at 
   * contact@bluekitchen-gmbh.com
   *
   */
  
  /*
   *  run_loop.c
   *
   *  Created by Matthias Ringwald on 6/6/09.
   */
  
  #include <btstack/run_loop.h>
  
  #include <stdio.h>
  #include <stdlib.h>  // exit()
  
  #include "run_loop_private.h"
  
  #include "debug.h"
  #include "btstack-config.h"
  
  static run_loop_t * the_run_loop = NULL;
  
  extern const run_loop_t run_loop_embedded;
  
  #ifdef USE_POSIX_RUN_LOOP
  extern run_loop_t run_loop_posix;
  #endif
  
  #ifdef USE_COCOA_RUN_LOOP
  extern run_loop_t run_loop_cocoa;
  #endif
  
  // assert run loop initialized
  static void run_loop_assert(void){
  #ifndef EMBEDDED
      if (!the_run_loop){
          log_error("ERROR: run_loop function called before run_loop_init!");
          exit(10);
      }
  #endif
  }
  
  
  void run_loop_set_timer_handler(timer_source_t *ts, void (*process)(timer_source_t *_ts)){
      ts->process = process;
  };
  
  void run_loop_set_data_source_handler(data_source_t *ds, int (*process)(data_source_t *_ds)){
      ds->process = process;
  };
  
  
  /**
   * Add data_source to run_loop
   */
  void run_loop_add_data_source(data_source_t *ds){
      run_loop_assert();
      the_run_loop->add_data_source(ds);
  }
  
  /**
   * Remove data_source from run loop
   */
  int run_loop_remove_data_source(data_source_t *ds){
      run_loop_assert();
      return the_run_loop->remove_data_source(ds);
  }
  
  void run_loop_set_timer(timer_source_t *a, uint32_t timeout_in_ms){
      run_loop_assert();
      the_run_loop->set_timer(a, timeout_in_ms);
  }
  
  /**
   * Add timer to run_loop (keep list sorted)
   */
  void run_loop_add_timer(timer_source_t *ts){
      run_loop_assert();
      the_run_loop->add_timer(ts);
  }
  
  /**
   * Remove timer from run loop
   */
  int run_loop_remove_timer(timer_source_t *ts){
      run_loop_assert();
      return the_run_loop->remove_timer(ts);
  }
  
  void run_loop_timer_dump(){
      run_loop_assert();
      the_run_loop->dump_timer();
  }
  
  /**
   * Execute run_loop
   */
  void run_loop_execute() {
      run_loop_assert();
      the_run_loop->execute();
  }
  
  // init must be called before any other run_loop call
  void run_loop_init(RUN_LOOP_TYPE type){
  #ifndef EMBEDDED
      if (the_run_loop){
          log_error("ERROR: run loop initialized twice!");
          exit(10);
      }
  #endif
      switch (type) {
  #ifdef EMBEDDED
          case RUN_LOOP_EMBEDDED:
              the_run_loop = (run_loop_t*) &run_loop_embedded;
              break;
  #endif
  #ifdef USE_POSIX_RUN_LOOP
          case RUN_LOOP_POSIX:
              the_run_loop = &run_loop_posix;
              break;
  #endif
  #ifdef USE_COCOA_RUN_LOOP
          case RUN_LOOP_COCOA:
              the_run_loop = &run_loop_cocoa;
              break;
  #endif
          default:
  #ifndef EMBEDDED
              log_error("ERROR: invalid run loop type %u selected!", type);
              exit(10);
  #endif
              break;
      }
      the_run_loop->init();
  }
  
  