00001 /* Copyright (c) 2007 Axel Wachtler 00002 All rights reserved. 00003 00004 Redistribution and use in source and binary forms, with or without 00005 modification, are permitted provided that the following conditions 00006 are met: 00007 00008 * Redistributions of source code must retain the above copyright 00009 notice, this list of conditions and the following disclaimer. 00010 * Redistributions in binary form must reproduce the above copyright 00011 notice, this list of conditions and the following disclaimer in the 00012 documentation and/or other materials provided with the distribution. 00013 * Neither the name of the authors nor the names of its contributors 00014 may be used to endorse or promote products derived from this software 00015 without specific prior written permission. 00016 00017 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 00018 AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 00019 IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 00020 ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 00021 LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 00022 CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 00023 SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 00024 INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 00025 CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 00026 ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 00027 POSSIBILITY OF SUCH DAMAGE. */ 00028 00029 /*$Id: timer_8h-source.html,v 1.1.1.2 2010/01/21 21:37:04 awachtler Exp $ */ 00038 #ifndef TIMER_H 00039 #define TIMER_H 00040 /* === includes ============================================================ */ 00041 #include <stdint.h> 00042 00043 /* === macros ============================================================== */ 00047 #define MSEC(v) ((time_t)(v / (1.0e3 * TIMER_TICK))) 00048 00049 #define USEC(v) ((time_t)(v / (1.0e6 * TIMER_TICK))) 00050 00054 /* === types =============================================================== */ 00055 00056 /* === prototypes ========================================================== */ 00057 #ifdef __cplusplus 00058 extern "C" { 00059 #endif 00060 00065 typedef uint32_t time_t; 00066 00067 00072 typedef struct time_stamp_tag 00073 { 00074 time_t time_sec; 00075 time_t time_usec; 00076 } time_stamp_t; 00077 00078 00083 typedef uint32_t timer_arg_t; 00084 00090 typedef uint16_t timer_hdl_t; 00091 00101 typedef time_t (timer_handler_t)(timer_arg_t p); 00102 00104 #define NONE_TIMER (0) 00105 00106 /* === Prototypes ================================ */ 00112 void timer_init(void); 00113 00134 timer_hdl_t timer_start(timer_handler_t *thfunc, time_t duration, 00135 timer_arg_t arg); 00136 00137 00155 timer_hdl_t timer_restart(timer_hdl_t th, time_t duration); 00156 00169 timer_hdl_t timer_stop(timer_hdl_t th); 00170 00176 time_t timer_systime(void); 00177 00178 00184 void timer_set_systime(time_t sec); 00185 00195 void timer_get_tstamp(time_stamp_t *ts); 00196 00197 #ifdef __cplusplus 00198 } /* extern "C" */ 00199 #endif 00200 00201 #endif /* TIMER_H */