wtime.h

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/* Copyright (c) 2010 Wildfire Games
 *
 * Permission is hereby granted, free of charge, to any person obtaining
 * a copy of this software and associated documentation files (the
 * "Software"), to deal in the Software without restriction, including
 * without limitation the rights to use, copy, modify, merge, publish,
 * distribute, sublicense, and/or sell copies of the Software, and to
 * permit persons to whom the Software is furnished to do so, subject to
 * the following conditions:
 * 
 * The above copyright notice and this permission notice shall be included
 * in all copies or substantial portions of the Software.
 * 
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
 * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
 * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 */

/*
 * emulate POSIX high resolution timer on Windows.
 */

#ifndef INCLUDED_WTIME
#define INCLUDED_WTIME


//
// <sys/types.h>
//

typedef unsigned long useconds_t;
typedef long suseconds_t;


//
// <unistd.h>
//

LIB_API unsigned sleep(unsigned sec);
LIB_API int usleep(useconds_t us);


//
// <time.h>
//

typedef enum
{
    // in our implementation, these actually do the same thing
    // (a timer that latches the system time at startup and uses the
    // monotonic HRT to add elapsed time since then)
    CLOCK_REALTIME,
    CLOCK_MONOTONIC
}
clockid_t;

// POSIX realtime clock_*
struct timespec
{
    time_t tv_sec;
    long   tv_nsec;
};

extern int nanosleep(const struct timespec* rqtp, struct timespec* rmtp);
extern int clock_gettime(clockid_t clock, struct timespec* ts);
extern int clock_getres(clockid_t clock, struct timespec* res);

LIB_API char* strptime(const char* buf, const char* format, struct tm* timeptr);

#endif  // #ifndef INCLUDED_WTIME