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platform_adpt.c
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platform_adpt.c
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#include "platform_adpt.h"
#include <stdlib.h>
#ifdef WIN32
void PA_NetLibInit()
{
WSADATA wd;
WSAStartup(0x0202, &wd);
}
int PA_Write(PA_HFILE hFile, const void *pBuff, unsigned int size)
{
DWORD dwWritten;
if( ! WriteFile(hFile, pBuff, size, &dwWritten, NULL) )
return -1;
return dwWritten;
}
int PA_Read(PA_HFILE hFile, void *pBuff, unsigned int size)
{
DWORD dwReaden;
if( ! ReadFile(hFile, pBuff, size, &dwReaden, NULL) )
return -1;
return dwReaden;
}
PA_HTHREAD PA_ThreadCreate(PA_ThreadRoutine* routine, void* data)
{
return CreateThread(NULL, 0, (LPTHREAD_START_ROUTINE)routine, data, 0, NULL);
}
void *PA_ThreadWaitUntilTerminate(PA_HTHREAD hThread)
{
DWORD dwExitCode;
WaitForSingleObject(hThread, INFINITE);
GetExitCodeThread(hThread, &dwExitCode);
return (void*)dwExitCode;
}
BOOL PA_PipeCreate(PA_PIPE *pHPipeRd, PA_PIPE *pHPipeWrt)
{
return CreatePipe(pHPipeRd, pHPipeWrt, NULL, 0) == TRUE;
}
BOOL PA_PipeClose(PA_PIPE hPipe)
{
return CloseHandle(hPipe);
}
int PA_SocketSetNBlk(PA_SOCKET s, BOOL b)
{
return ioctlsocket(s, FIONBIO, (u_long*)&b);
}
/*****************************
* Read-Write Lock
*****************************/
enum { LOCK_LEVEL_NONE, LOCK_LEVEL_READ, LOCK_LEVEL_WRITE };
RWLOCK *RWLockCreate()
{
RWLOCK *pLock = (RWLOCK*)malloc(sizeof(RWLOCK));
pLock->m_currentLevel = LOCK_LEVEL_NONE;
pLock->m_readerCount = pLock->m_writeCount = 0;
pLock->m_writerId = 0;
//pLock->m_unlockEvent = CreateEvent( NULL, TRUE, FALSE, NULL );
pLock->m_unlockEvent = CreateEvent( NULL, FALSE, FALSE, NULL );
pLock->m_accessMutex = CreateMutex( NULL, FALSE, NULL );
InitializeCriticalSection( &pLock->m_csStateChange );
return pLock;
}
BOOL RWLockDestroy(RWLOCK *pLock)
{
DeleteCriticalSection( &pLock->m_csStateChange );
if ( pLock->m_accessMutex ) CloseHandle( pLock->m_accessMutex );
if ( pLock->m_unlockEvent ) CloseHandle( pLock->m_unlockEvent );
free(pLock);
return TRUE;
}
static BOOL _Lock(RWLOCK *pLock, int level, DWORD timeout)
{
BOOL bresult = TRUE;
DWORD waitResult = 0;
waitResult = WaitForSingleObject( pLock->m_accessMutex, timeout );
if ( waitResult != WAIT_OBJECT_0 ) return FALSE;
if ( level == LOCK_LEVEL_READ && pLock->m_currentLevel != LOCK_LEVEL_WRITE )
{
EnterCriticalSection( &pLock->m_csStateChange );
pLock->m_currentLevel = level;
pLock->m_readerCount += 1;
ResetEvent( pLock->m_unlockEvent );
LeaveCriticalSection( &pLock->m_csStateChange );
}
else if ( level == LOCK_LEVEL_READ &&
pLock->m_currentLevel == LOCK_LEVEL_WRITE )
{
waitResult = WaitForSingleObject( pLock->m_unlockEvent, timeout );
if ( waitResult == WAIT_OBJECT_0 )
{
EnterCriticalSection( &pLock->m_csStateChange );
pLock->m_currentLevel = level;
pLock->m_readerCount += 1;
ResetEvent( pLock->m_unlockEvent );
LeaveCriticalSection( &pLock->m_csStateChange );
}
else bresult = FALSE;
}
else if ( level == LOCK_LEVEL_WRITE &&
pLock->m_currentLevel == LOCK_LEVEL_NONE )
{
EnterCriticalSection( &pLock->m_csStateChange );
pLock->m_currentLevel = level;
pLock->m_writerId = GetCurrentThreadId();
pLock->m_writeCount = 1;
ResetEvent( pLock->m_unlockEvent );
LeaveCriticalSection( &pLock->m_csStateChange );
}
else if ( level == LOCK_LEVEL_WRITE &&
pLock->m_currentLevel != LOCK_LEVEL_NONE )
{
DWORD id = GetCurrentThreadId();
if(id == pLock->m_writerId) pLock->m_writeCount++;
else
{
waitResult = WaitForSingleObject( pLock->m_unlockEvent, timeout );
if ( waitResult == WAIT_OBJECT_0 )
{
EnterCriticalSection( &pLock->m_csStateChange );
pLock->m_currentLevel = level;
pLock->m_writerId = GetCurrentThreadId();
pLock->m_writeCount = 1;
ResetEvent( pLock->m_unlockEvent );
LeaveCriticalSection( &pLock->m_csStateChange );
}
else bresult = FALSE;
}
}
ReleaseMutex( pLock->m_accessMutex );
return bresult;
} // lock()
BOOL RWLockLockR(RWLOCK *pLock, DWORD timeout)
{
return _Lock(pLock, LOCK_LEVEL_READ, timeout);
}
BOOL RWLockLockW(RWLOCK *pLock, DWORD timeout)
{
return _Lock(pLock, LOCK_LEVEL_WRITE, timeout);
}
void RWLockUnlock(RWLOCK *pLock)
{
EnterCriticalSection( &pLock->m_csStateChange );
if ( pLock->m_currentLevel == LOCK_LEVEL_READ )
{
pLock->m_readerCount --;
if ( pLock->m_readerCount == 0 )
{
pLock->m_currentLevel = LOCK_LEVEL_NONE;
SetEvent (pLock->m_unlockEvent);
}
}
else if ( pLock->m_currentLevel == LOCK_LEVEL_WRITE )
{
pLock->m_writeCount--;
if(pLock->m_writeCount == 0)
{
pLock->m_currentLevel = LOCK_LEVEL_NONE;
pLock->m_writerId = 0;
SetEvent ( pLock->m_unlockEvent );
}
}
LeaveCriticalSection( &pLock->m_csStateChange );
}
/////////////////////////////////////////////////////////
#elif defined(__LINUX__) || defined(__ANDROID__)
BOOL PA_EventWaitTimed(PA_EVENT e, DWORD ms)
{
struct timespec ts;
#if 0
clock_gettime(CLOCK_MONOTONIC, &ts);
ts.tv_sec += ms/1000;
ts.tv_nsec += (ms%1000)*1000000;
#else
gettimeofday((struct timeval*)&ts, NULL);
ts.tv_nsec *= 1000;
ts.tv_sec += ms/1000;
ts.tv_nsec += (ms%1000)*1000000;
if(ts.tv_nsec > 1000000000) {
ts.tv_nsec -= 1000000000;
ts.tv_sec ++;
}
#endif
return sem_timedwait(e, &ts) == 0;
}
PA_HTHREAD PA_ThreadCreate(PA_ThreadRoutine* routine, void* data)
{
pthread_t thd;
if(pthread_create(&thd, NULL, routine, data) == 0)
return thd;
else
return 0;
}
void* PA_ThreadWaitUntilTerminate(PA_HTHREAD hThread)
{
void *tmp;
pthread_join(hThread, &tmp); return tmp;
}
BOOL PA_PipeCreate(PA_PIPE *pHPipeRd, PA_PIPE *pHPipeWrt)
{
PA_PIPE fds[2];
if(pipe(fds) < 0) return FALSE;
*pHPipeRd = fds[0];
*pHPipeWrt = fds[1];
return TRUE;
}
BOOL PA_PipeClose(PA_PIPE hPipe)
{
return 0 == close(hPipe);
}
void PA_Sleep(UINT ms)
{
struct timeval tv;
tv.tv_sec = ms/1000;
tv.tv_usec = (ms%1000)*1000;
select(0, NULL, NULL, NULL, &tv);
}
DWORD PA_GetTickCount()
{
struct timespec ts;
clock_gettime(CLOCK_MONOTONIC, &ts);
return 1000*ts.tv_sec + ts.tv_nsec/1000000;
}
BOOL PA_DeleteFile(const char *fn)
{
return unlink(fn) == 0;
}
int PA_SocketSetNBlk(PA_SOCKET s, BOOL b)
{
int opt = fcntl(s, F_GETFL, &opt, 0);
if(b) opt |= O_NONBLOCK;
else opt &= ~O_NONBLOCK;
return fcntl(s, F_SETFL, opt);
}
/***********************
* Read-Write Lock
***********************/
BOOL _RWLockLockR(pthread_rwlock_t *lock, DWORD timeout)
{
if(timeout == INFINITE)
return pthread_rwlock_rdlock(lock) == 0;
else
{
while(!pthread_rwlock_tryrdlock(lock) && timeout > 0)
{
usleep(10000);
if(timeout > 10) timeout -= 10;
else return FALSE;
}
return TRUE;
}
}
BOOL _RWLockLockW(pthread_rwlock_t *lock, DWORD timeout)
{
if(timeout == INFINITE)
return pthread_rwlock_wrlock(lock)==0;
else
{
while(!pthread_rwlock_trywrlock(lock) && timeout > 0)
{
usleep(10000);
if(timeout > 10) timeout -= 10;
else return FALSE;
}
return TRUE;
}
}
#elif defined(ARM_UCOS_LWIP)
PA_HTHREAD PA_ThreadCreate(PA_ThreadRoutine* routine, void* data)
{
//sys_thread_t sys_thread_new(char *name, void (* thread)(void *arg), void *arg, int stacksize, int prio)
return sys_thread_new(NULL, routine, data, 0, 10);
}
void* PA_ThreadWaitUntilTerminate(PA_HTHREAD hThread)
{
return NULL;
}
int PA_SocketSetNBlk(PA_SOCKET s, BOOL b)
{
return lwip_ioctl(s, FIONBIO, (void*)&b);
}
#endif //linux
#ifdef __ANDROID__
void android_log(int level, const char *tag, const char *sfmt, ...)
{
va_list va;
char buf[1024];
va_start(va, sfmt);
vsnprintf(buf, sizeof(buf), sfmt, va);
va_end(va);
__android_log_write(level, tag, buf);
}
#endif
int PA_SocketSetLinger(PA_SOCKET s, int onoff, int linger)
{
struct linger opt = { onoff, linger };
return setsockopt(s, SOL_SOCKET, SO_LINGER,
#ifdef WIN32
(const char*)&opt,
#else
&opt,
#endif
sizeof(opt));
}
#ifdef _DEBUG
void dbg_bin(const char *title, const void *p, int size)
{
int i;
unsigned char *byts = (unsigned char*)p;
printf(title);
for(i=0; i<size; i++)
{
printf("%02X ", byts[i]);
if(i>0 && (i&31) == 31) printf("\n");
}
printf("\n");
}
#else
#define dbg_bin(x, y, z)
#endif