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/**
* hdr_thread.c
* Written by Philip Orwig and released to the public domain,
* as explained at http://creativecommons.org/publicdomain/zero/1.0/
*/
#include <stdlib.h>
#include "hdr_thread.h"
struct hdr_mutex* hdr_mutex_alloc(void)
{
return malloc(sizeof(hdr_mutex));
}
void hdr_mutex_free(struct hdr_mutex* mutex)
{
free(mutex);
}
#if defined(_WIN32) || defined(_WIN64) || defined(__CYGWIN__)
#if !defined(WIN32_LEAN_AND_MEAN)
#define WIN32_LEAN_AND_MEAN
#endif
#include <windows.h>
#include <WinSock2.h>
int hdr_mutex_init(struct hdr_mutex* mutex)
{
InitializeCriticalSection((CRITICAL_SECTION*)(mutex->_critical_section));
return 0;
}
void hdr_mutex_destroy(struct hdr_mutex* mutex)
{
DeleteCriticalSection((CRITICAL_SECTION*)(mutex->_critical_section));
}
void hdr_mutex_lock(struct hdr_mutex* mutex)
{
EnterCriticalSection((CRITICAL_SECTION*)(mutex->_critical_section));
}
void hdr_mutex_unlock(struct hdr_mutex* mutex)
{
LeaveCriticalSection((CRITICAL_SECTION*)(mutex->_critical_section));
}
void hdr_yield()
{
Sleep(0);
}
int hdr_usleep(unsigned int useconds)
{
struct timeval tv;
tv.tv_sec = (long)useconds / 1000000;
tv.tv_usec = useconds % 1000000;
select(0, NULL, NULL, NULL, &tv);
return 0;
}
#else
#include <pthread.h>
#include <unistd.h>
int hdr_mutex_init(struct hdr_mutex* mutex)
{
return pthread_mutex_init(&mutex->_mutex, NULL);
}
void hdr_mutex_destroy(struct hdr_mutex* mutex)
{
pthread_mutex_destroy(&mutex->_mutex);
}
void hdr_mutex_lock(struct hdr_mutex* mutex)
{
pthread_mutex_lock(&mutex->_mutex);
}
void hdr_mutex_unlock(struct hdr_mutex* mutex)
{
pthread_mutex_unlock(&mutex->_mutex);
}
void hdr_yield()
{
sched_yield();
}
int hdr_usleep(unsigned int useconds)
{
return usleep(useconds);
}
#endif
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