bool ThreadContextTLSEntry::TrySetThreadContext(ThreadContext * threadContext)
{
Assert(threadContext != NULL);
ASSERT_ENTRY_INITIALIZED();
DWORD threadContextThreadId = threadContext->GetCurrentThreadId();
// If a thread context is current on another thread, then you cannot set it to current on this one.
if (threadContextThreadId != ThreadContext::NoThread && threadContextThreadId != ::GetCurrentThreadId())
{
// the thread doesn't support rental thread and try to set on a different thread???
Assert(!threadContext->IsThreadBound());
return false;
}
ThreadContextTLSEntry * entry = ENTRY_FOR_CURRENT_THREAD();
if (entry == NULL)
{
Assert(!threadContext->IsThreadBound());
entry = CreateEntryForCurrentThread();
#ifndef _WIN32
ENTRY_FOR_CURRENT_THREAD() = entry;
#endif
}
else if (entry->threadContext != NULL && entry->threadContext != threadContext)
{
// If the thread has an active thread context and either that thread context is thread
// bound (in which case it cannot be moved off this thread), or if the thread context
// is running script, you cannot move it off this thread.
if (entry->threadContext->IsThreadBound() || entry->threadContext->IsInScript())
{
return false;
}
ClearThreadContext(entry, true);
}
SetThreadContext(entry, threadContext);
return true;
}
bool ThreadContextTLSEntry::TrySetThreadContext(ThreadContext * threadContext)
{
Assert(threadContext != NULL);
Assert(s_tlsSlot != TLS_OUT_OF_INDEXES);
DWORD threadContextThreadId = threadContext->GetCurrentThreadId();
// If a thread context is current on another thread, then you cannot set it to current on this one.
if (threadContextThreadId != ThreadContext::NoThread && threadContextThreadId != ::GetCurrentThreadId())
{
// the thread doesn't support rental thread and try to set on a different thread???
Assert(!threadContext->GetIsThreadBound());
return false;
}
ThreadContextTLSEntry * entry = GetEntryForCurrentThread();
if (entry == NULL)
{
Assert(!threadContext->GetIsThreadBound());
entry = CreateEntryForCurrentThread();
}
else if (entry->threadContext != NULL && entry->threadContext != threadContext)
{
// If the thread has an active thread context and either that thread context is thread
// bound (in which case it cannot be moved off this thread), or if the thread context
// is running script, you cannot move it off this thread.
if (entry->threadContext->GetIsThreadBound() || entry->threadContext->IsInScript())
{
return false;
}
ClearThreadContext(entry, true);
}
SetThreadContext(entry, threadContext);
return true;
}
bool ThreadContextTLSEntry::ClearThreadContext(bool isValid)
{
return ClearThreadContext(GetEntryForCurrentThread(), isValid, false);
}
bool ThreadContextTLSEntry::ClearThreadContext(bool isValid)
{
return ClearThreadContext(ENTRY_FOR_CURRENT_THREAD(), isValid, false);
}
