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92 lines
3.4 KiB
C
92 lines
3.4 KiB
C
/*
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* Copyright (C) 2009 by Matthias Ringwald
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the copyright holders nor the names of
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY MATTHIAS RINGWALD AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL MATTHIAS
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* RINGWALD OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
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* THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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*/
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/*
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* run_loop.h
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*
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* Created by Matthias Ringwald on 6/6/09.
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*/
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#pragma once
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#include <btstack/linked_list.h>
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#include <sys/time.h>
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typedef enum {
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RUN_LOOP_POSIX = 1,
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RUN_LOOP_COCOA
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} RUN_LOOP_TYPE;
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typedef struct data_source {
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linked_item_t item;
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int fd; // <-- file descriptors to watch or 0
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int (*process)(struct data_source *ds); // <-- do processing
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} data_source_t;
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typedef struct timer {
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linked_item_t item;
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struct timeval timeout; // <-- next timeout
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void (*process)(struct timer *ts); // <-- do processing
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} timer_source_t;
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// init must be called before any other run_loop call
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void run_loop_init(RUN_LOOP_TYPE type);
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// set timer based on current time
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void run_loop_set_timer(timer_source_t *a, int timeout_in_ms);
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// compare timeval or timers - NULL is assumed to be before the Big Bang
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int run_loop_timeval_compare(struct timeval *a, struct timeval *b);
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int run_loop_timer_compare(timer_source_t *a, timer_source_t *b);
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void run_loop_add_data_source(data_source_t *dataSource); // <-- add DataSource to RunLoop
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int run_loop_remove_data_source(data_source_t *dataSource); // <-- remove DataSource from RunLoop
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void run_loop_add_timer(timer_source_t *timer); // <-- add Timer to RunLoop
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int run_loop_remove_timer(timer_source_t *timer); // <-- remove Timer from RunLoop
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void run_loop_execute(); // <-- execute configured RunLoop
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void run_loop_timer_dump(); // debug
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// internal use only
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typedef struct {
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void (*init)();
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void (*add_data_source)(data_source_t *dataSource);
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int (*remove_data_source)(data_source_t *dataSource);
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void (*add_timer)(timer_source_t *timer);
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int (*remove_timer)(timer_source_t *timer);
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void (*execute)();
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void (*dump_timer)();
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} run_loop_t;
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