static bool InitThread()
{
if (s_ThreadInitialized == OS_INVALID_TLS_INDEX)
{
assert(0 && "InitThread(): Process hasn't been initalised.");
return false;
}
// already initialized?
if (OS_GetTLSValue(s_ThreadInitialized) != 0)
return true;
// initialize per-thread data
InitializeGlobalPools();
if (!InitializeGlobalParseContext())
return false;
if (!OS_SetTLSValue(s_ThreadInitialized, (void *)1))
{
assert(0 && "InitThread(): Unable to set init flag.");
return false;
}
return true;
}
void InitializeGlobalPools()
{
TThreadGlobalPools* globalPools= static_cast<TThreadGlobalPools*>(OS_GetTLSValue(PoolIndex));
if (globalPools)
return;
void* poolMem, *threadPoolMem;
TPoolAllocator *globalPoolAllocator;
TThreadGlobalPools* threadData;
if (_allocate) {
poolMem = _allocate(sizeof(TPoolAllocator), _user_data);
threadPoolMem = _allocate(sizeof(TThreadGlobalPools), _user_data);
globalPoolAllocator = new (poolMem) TPoolAllocator(true);
threadData = new (threadPoolMem) TThreadGlobalPools();
} else {
globalPoolAllocator = new TPoolAllocator(true);
threadData = new TThreadGlobalPools();
}
threadData->globalPoolAllocator = globalPoolAllocator;
OS_SetTLSValue(PoolIndex, threadData);
globalPoolAllocator->push();
}
bool InitThread()
{
//
// This function is re-entrant
//
if (ThreadInitializeIndex == OS_INVALID_TLS_INDEX) {
assert(0 && "InitThread(): Process hasn't been initalised.");
return false;
}
if (OS_GetTLSValue(ThreadInitializeIndex) != 0)
return true;
InitializeGlobalPools();
if (!InitializeGlobalParseContext())
return false;
if (!OS_SetTLSValue(ThreadInitializeIndex, (void *)1)) {
assert(0 && "InitThread(): Unable to set init flag.");
return false;
}
return true;
}
void InitializeGlobalPools()
{
TThreadGlobalPools* globalPools= static_cast<TThreadGlobalPools*>(OS_GetTLSValue(PoolIndex));
if (globalPools)
return;
TThreadGlobalPools* threadData = new TThreadGlobalPools();
threadData->globalPoolAllocator = 0;
OS_SetTLSValue(PoolIndex, threadData);
}
static bool DetachThread()
{
if (s_ThreadInitialized == OS_INVALID_TLS_INDEX)
return true;
if (OS_GetTLSValue(s_ThreadInitialized) == 0)
return true;
bool success = true;
if (!OS_SetTLSValue(s_ThreadInitialized, (void *)0))
{
assert(0 && "DetachThread(): Unable to clear init flag.");
success = false;
}
FreeGlobalPools();
if (!FreeParseContext())
success = false;
return success;
}
bool DetachThread()
{
bool success = true;
if (ThreadInitializeIndex == OS_INVALID_TLS_INDEX)
return true;
//
// Function is re-entrant and this thread may not have been initalised.
//
if (OS_GetTLSValue(ThreadInitializeIndex) != 0) {
if (!OS_SetTLSValue(ThreadInitializeIndex, (void *)0)) {
assert(0 && "DetachThread(): Unable to clear init flag.");
success = false;
}
FreeGlobalPools();
}
return success;
}
bool InitializeGlobalParseContext()
{
if (GlobalParseContextIndex == OS_INVALID_TLS_INDEX) {
assert(0 && "InitializeGlobalParseContext(): Parse Context index not initalised");
return false;
}
TThreadParseContext *lpParseContext = static_cast<TThreadParseContext *>(OS_GetTLSValue(GlobalParseContextIndex));
if (lpParseContext != 0) {
assert(0 && "InitializeParseContextIndex(): Parse Context already initalised");
return false;
}
TThreadParseContext *lpThreadData = new TThreadParseContext();
if (lpThreadData == 0) {
assert(0 && "InitializeGlobalParseContext(): Unable to create thread parse context");
return false;
}
lpThreadData->lpGlobalParseContext = 0;
OS_SetTLSValue(GlobalParseContextIndex, lpThreadData);
return true;
}
