// this is where _beginthreadex() is declared
#include <process.h>
- // the return type of the thread function entry point
- typedef wxUIntPtr THREAD_RETVAL;
+ // the return type of the thread function entry point: notice that this
+ // type can't hold a pointer under Win64
+ typedef unsigned THREAD_RETVAL;
// the calling convention of the thread function entry point
#define THREAD_CALLCONV __stdcall
// id of the main thread - the one which can call GUI functions without first
// calling wxMutexGuiEnter()
-static DWORD gs_idMainThread = 0;
+wxThreadIdType wxThread::ms_idMainThread = 0;
// if it's false, some secondary thread is holding the GUI lock
static bool gs_bGuiOwnedByMainThread = true;
// wxCriticalSection
// ----------------------------------------------------------------------------
-wxCriticalSection::wxCriticalSection()
+wxCriticalSection::wxCriticalSection( wxCriticalSectionType WXUNUSED(critSecType) )
{
wxCOMPILE_TIME_ASSERT( sizeof(CRITICAL_SECTION) <= sizeof(wxCritSectBuffer),
wxCriticalSectionBufferTooSmall );
HANDLE m_mutex;
- DECLARE_NO_COPY_CLASS(wxMutexInternal)
+ unsigned long m_owningThread;
+ wxMutexType m_type;
+
+ wxDECLARE_NO_COPY_CLASS(wxMutexInternal);
};
// all mutexes are recursive under Win32 so we don't use mutexType
-wxMutexInternal::wxMutexInternal(wxMutexType WXUNUSED(mutexType))
+wxMutexInternal::wxMutexInternal(wxMutexType mutexType)
{
// create a nameless (hence intra process and always private) mutex
m_mutex = ::CreateMutex
NULL // no name
);
+ m_type = mutexType;
+ m_owningThread = 0;
+
if ( !m_mutex )
{
- wxLogLastError(_T("CreateMutex()"));
+ wxLogLastError(wxT("CreateMutex()"));
}
+
}
wxMutexInternal::~wxMutexInternal()
{
if ( !::CloseHandle(m_mutex) )
{
- wxLogLastError(_T("CloseHandle(mutex)"));
+ wxLogLastError(wxT("CloseHandle(mutex)"));
}
}
}
wxMutexError wxMutexInternal::LockTimeout(DWORD milliseconds)
{
- DWORD rc = ::WaitForSingleObject(m_mutex, milliseconds);
- if ( rc == WAIT_ABANDONED )
+ if (m_type == wxMUTEX_DEFAULT)
{
- // the previous caller died without releasing the mutex, but now we can
- // really lock it
- wxLogDebug(_T("WaitForSingleObject() returned WAIT_ABANDONED"));
-
- // use 0 timeout, normally we should always get it
- rc = ::WaitForSingleObject(m_mutex, 0);
+ // Don't allow recursive
+ if (m_owningThread != 0)
+ {
+ if (m_owningThread == wxThread::GetCurrentId())
+ return wxMUTEX_DEAD_LOCK;
+ }
}
+ DWORD rc = ::WaitForSingleObject(m_mutex, milliseconds);
switch ( rc )
{
+ case WAIT_ABANDONED:
+ // the previous caller died without releasing the mutex, so even
+ // though we did get it, log a message about this
+ wxLogDebug(wxT("WaitForSingleObject() returned WAIT_ABANDONED"));
+ // fall through
+
case WAIT_OBJECT_0:
// ok
break;
case WAIT_TIMEOUT:
return wxMUTEX_TIMEOUT;
- case WAIT_ABANDONED: // checked for above
default:
wxFAIL_MSG(wxT("impossible return value in wxMutex::Lock"));
// fall through
case WAIT_FAILED:
- wxLogLastError(_T("WaitForSingleObject(mutex)"));
+ wxLogLastError(wxT("WaitForSingleObject(mutex)"));
return wxMUTEX_MISC_ERROR;
}
+ if (m_type == wxMUTEX_DEFAULT)
+ {
+ // required for checking recursiveness
+ m_owningThread = wxThread::GetCurrentId();
+ }
+
return wxMUTEX_NO_ERROR;
}
wxMutexError wxMutexInternal::Unlock()
{
+ // required for checking recursiveness
+ m_owningThread = 0;
+
if ( !::ReleaseMutex(m_mutex) )
{
- wxLogLastError(_T("ReleaseMutex()"));
+ wxLogLastError(wxT("ReleaseMutex()"));
return wxMUTEX_MISC_ERROR;
}
private:
HANDLE m_semaphore;
- DECLARE_NO_COPY_CLASS(wxSemaphoreInternal)
+ wxDECLARE_NO_COPY_CLASS(wxSemaphoreInternal);
};
wxSemaphoreInternal::wxSemaphoreInternal(int initialcount, int maxcount)
#endif
if ( !m_semaphore )
{
- wxLogLastError(_T("CreateSemaphore()"));
+ wxLogLastError(wxT("CreateSemaphore()"));
}
}
{
if ( !::CloseHandle(m_semaphore) )
{
- wxLogLastError(_T("CloseHandle(semaphore)"));
+ wxLogLastError(wxT("CloseHandle(semaphore)"));
}
}
}
return wxSEMA_TIMEOUT;
default:
- wxLogLastError(_T("WaitForSingleObject(semaphore)"));
+ wxLogLastError(wxT("WaitForSingleObject(semaphore)"));
}
return wxSEMA_MISC_ERROR;
}
else
{
- wxLogLastError(_T("ReleaseSemaphore"));
+ wxLogLastError(wxT("ReleaseSemaphore"));
return wxSEMA_MISC_ERROR;
}
}
// reaches 0 we kill the owning wxThread -- and die ourselves with it
LONG m_nRef;
- DECLARE_NO_COPY_CLASS(wxThreadInternal)
+ wxDECLARE_NO_COPY_CLASS(wxThreadInternal);
};
// small class which keeps a thread alive during its lifetime
return THREAD_ERROR_EXIT;
}
- rc = (THREAD_RETVAL)thread->Entry();
+ rc = wxPtrToUInt(thread->Entry());
}
wxCATCH_ALL( wxTheApp->OnUnhandledException(); )
bool wxThreadInternal::Create(wxThread *thread, unsigned int stackSize)
{
wxASSERT_MSG( m_state == STATE_NEW && !m_hThread,
- _T("Create()ing thread twice?") );
+ wxT("Create()ing thread twice?") );
// for compilers which have it, we should use C RTL function for thread
// creation instead of Win32 API one because otherwise we will have memory
return thread;
}
-bool wxThread::IsMain()
-{
- return ::GetCurrentThreadId() == gs_idMainThread || gs_idMainThread == 0;
-}
-
void wxThread::Yield()
{
// 0 argument to Sleep() is special and means to just give away the rest of
#ifdef __WXWINCE__
return false;
#else
- wxASSERT_MSG( IsMain(), _T("should only be called from the main thread") );
+ wxASSERT_MSG( IsMain(), wxT("should only be called from the main thread") );
// ok only for the default one
if ( level == 0 )
DWORD_PTR dwProcMask, dwSysMask;
if ( ::GetProcessAffinityMask(hProcess, &dwProcMask, &dwSysMask) == 0 )
{
- wxLogLastError(_T("GetProcessAffinityMask"));
+ wxLogLastError(wxT("GetProcessAffinityMask"));
return false;
}
// could we set all bits?
if ( level != 0 )
{
- wxLogDebug(_T("bad level %u in wxThread::SetConcurrency()"), level);
+ wxLogDebug(wxT("bad level %u in wxThread::SetConcurrency()"), level);
return false;
}
if ( !pfnSetProcessAffinityMask )
{
- HMODULE hModKernel = ::LoadLibrary(_T("kernel32"));
+ HMODULE hModKernel = ::LoadLibrary(wxT("kernel32"));
if ( hModKernel )
{
pfnSetProcessAffinityMask = (SETPROCESSAFFINITYMASK)
// we've discovered a MT version of Win9x!
wxASSERT_MSG( pfnSetProcessAffinityMask,
- _T("this system has several CPUs but no SetProcessAffinityMask function?") );
+ wxT("this system has several CPUs but no SetProcessAffinityMask function?") );
}
if ( !pfnSetProcessAffinityMask )
if ( pfnSetProcessAffinityMask(hProcess, dwProcMask) == 0 )
{
- wxLogLastError(_T("SetProcessAffinityMask"));
+ wxLogLastError(wxT("SetProcessAffinityMask"));
return false;
}
wxThread::ExitCode wxThread::Wait()
{
- ExitCode rc = (ExitCode)THREAD_ERROR_EXIT;
+ ExitCode rc = wxUIntToPtr(THREAD_ERROR_EXIT);
// although under Windows we can wait for any thread, it's an error to
// wait for a detached one in wxWin API
wxCHECK_MSG( !IsDetached(), rc,
- _T("wxThread::Wait(): can't wait for detached thread") );
+ wxT("wxThread::Wait(): can't wait for detached thread") );
(void)m_internal->WaitForTerminate(m_critsect, &rc);
gs_critsectThreadDelete = new wxCriticalSection;
- // no error return for GetCurrentThreadId()
- gs_idMainThread = ::GetCurrentThreadId();
+ wxThread::ms_idMainThread = wxThread::GetCurrentId();
return true;
}
void WXDLLIMPEXP_BASE wxWakeUpMainThread()
{
// sending any message would do - hopefully WM_NULL is harmless enough
- if ( !::PostThreadMessage(gs_idMainThread, WM_NULL, 0, 0) )
+ if ( !::PostThreadMessage(wxThread::GetMainId(), WM_NULL, 0, 0) )
{
// should never happen
wxLogLastError(wxT("PostThreadMessage(WM_NULL)"));
projects / wxWidgets.git / blobdiff