// lookup thread data
thread_data *__GetThreadData( void )
{
thread_data *tdata = NULL;
#ifdef __OS2__
TID tid;
tid = GetCurrentThreadId();
if( tid <= __MaxThreads ) {
tdata = __AllocInitThreadData( tdata );
if( tdata != NULL ) {
if( __initthread( tdata ) ) {
__FreeInitThreadData( tdata );
tdata = NULL;
} else {
__ThreadData[tid].data = tdata;
__ThreadData[tid].allocated_entry = tdata->__allocated;
}
}
} else {
thread_data_list *tdl;
thread_data_list **pprev;
_AccessTDList();
tdata = NULL;
pprev = &__thread_data_list;
for( tdl = *pprev; tdl != NULL ; tdl = tdl->next ) {
if( tdl->tid == tid ) {
tdata = tdl->data;
break;
}
pprev = &(tdl->next);
}
if( tdata == NULL ) {
tdata = __AllocInitThreadData( tdata );
if( tdata != NULL ) {
if( !__AddThreadData( tid, tdata ) ) {
__FreeInitThreadData( tdata );
tdata = NULL;
}
}
} else if( *pprev ) {
// promote to front
*pprev = tdl->next;
tdl->next = __thread_data_list;
__thread_data_list = tdl;
// check for need to resize thread data
if( tdata->__resize ) {
tdata = __ReallocThreadData();
}
}
_ReleaseTDList();
}
#elif defined(__NT__)
if( __NTAddThread( tdata ) )
{
tdata = (thread_data *)TlsGetValue( __TlsIndex );
}
#elif defined(_NETWARE_LIBC)
if( __LibCAddThread( tdata ) )
{
if(0 != NXKeyGetValue(__NXSlotID, (void **) &tdata))
tdata = NULL;
}
#elif defined(__RDOS__)
if( __RdosAddThread( tdata ) )
{
tdata = (thread_data *)__tls_get_value( __TlsIndex );
}
#endif
if( tdata == NULL ) {
__fatal_runtime_error( "Thread has no thread-specific data", 1 );
}
return( tdata );
}
thread_data *__MultipleThread( void )
{
#if defined( __NT__ )
/*
* Preserve old error code -- important because this code can get
* called from _STK.
*/
DWORD old = GetLastError();
thread_data *tdata;
tdata = (thread_data *)TlsGetValue( __TlsIndex );
if( tdata == NULL ) {
tdata = __GetThreadData();
} else if( tdata->__resize ) {
tdata = __ReallocThreadData();
}
SetLastError(old);
return( tdata );
#elif defined (_NETWARE_LIBC)
/*
* Preserve old error code -- important because this code can get
* called from _STK.
*/
int old = GetLastError();
int ccode = 0;
thread_data *tdata = NULL;
if(0 != (ccode = NXKeyGetValue(__NXSlotID, (void **) &tdata)))
tdata = NULL;
if( tdata == NULL ) {
tdata = __GetThreadData();
} else if( tdata->__resize ) {
tdata = __ReallocThreadData();
}
SetLastError(old);
return( tdata );
#elif defined( __WARP__ )
// 32 bit OS/2
TID tid;
thread_data *tdata = NULL;
tid = GetCurrentThreadId();
if( tid <= __MaxThreads ) {
tdata = __ThreadData[tid].data;
}
if( tdata == NULL ) {
tdata = __GetThreadData();
} else if( tdata->__resize ) {
tdata = __ReallocThreadData();
}
return( tdata );
#elif defined( __OS2_286__ )
// 16 bit OS/2
return( __ThreadData[GetCurrentThreadId()] );
#elif defined( __QNX__ )
void *tdata;
__getmagicvar( &tdata, _m_thread_data );
if( tdata == NULL ) {
tdata = __QNXAddThread( tdata );
}
return( tdata );
#elif defined( __LINUX__ )
// TODO: Init multiple threads for Linux!
return( NULL );
#elif defined( __RDOS__ )
thread_data *tdata;
tdata = (thread_data *)__tls_get_value( __TlsIndex );
if( tdata == NULL )
tdata = __GetThreadData();
return( tdata );
#elif defined( __RDOSDEV__ )
return( NULL );
#else
return( __ThreadData[GetCurrentThreadId()].data );
#endif
}
