#if wxUSE_THREADS
-// only for wxUSE_THREADS - otherwise we'd get undefined symbols
-#ifdef __GNUG__
- #pragma interface "thread.h"
-#endif
-
-// Windows headers define it
-#ifdef Yield
- #undef Yield
-#endif
-
-#include "wx/module.h"
-
// ----------------------------------------------------------------------------
// constants
// ----------------------------------------------------------------------------
wxMUTEX_DEAD_LOCK, // mutex is already locked by the calling thread
wxMUTEX_BUSY, // mutex is already locked by another thread
wxMUTEX_UNLOCKED, // attempt to unlock a mutex which is not locked
+ wxMUTEX_TIMEOUT, // LockTimeout() has timed out
wxMUTEX_MISC_ERROR // any other error
};
wxTHREAD_JOINABLE
};
+enum wxThreadWait
+{
+ wxTHREAD_WAIT_BLOCK,
+ wxTHREAD_WAIT_YIELD, // process events while waiting; MSW only
+
+ // For compatibility reasons we use wxTHREAD_WAIT_YIELD by default as this
+ // was the default behaviour of wxMSW 2.8 but it should be avoided as it's
+ // dangerous and not portable.
+#if WXWIN_COMPATIBILITY_2_8
+ wxTHREAD_WAIT_DEFAULT = wxTHREAD_WAIT_YIELD
+#else
+ wxTHREAD_WAIT_DEFAULT = wxTHREAD_WAIT_BLOCK
+#endif
+};
+
// defines the interval of priority
enum
{
};
// forward declarations
-class WXDLLEXPORT wxConditionInternal;
-class WXDLLEXPORT wxMutexInternal;
-class WXDLLEXPORT wxSemaphoreInternal;
-class WXDLLEXPORT wxThreadInternal;
+class WXDLLIMPEXP_FWD_BASE wxThreadHelper;
+class WXDLLIMPEXP_FWD_BASE wxConditionInternal;
+class WXDLLIMPEXP_FWD_BASE wxMutexInternal;
+class WXDLLIMPEXP_FWD_BASE wxSemaphoreInternal;
+class WXDLLIMPEXP_FWD_BASE wxThreadInternal;
// ----------------------------------------------------------------------------
// A mutex object is a synchronization object whose state is set to signaled
// you should consider wxMutexLocker whenever possible instead of directly
// working with wxMutex class - it is safer
-class WXDLLEXPORT wxMutex
+class WXDLLIMPEXP_BASE wxMutex
{
public:
// constructor & destructor
// The caller must call Unlock() later if Lock() returned wxMUTEX_NO_ERROR.
wxMutexError Lock();
+ // Same as Lock() but return wxMUTEX_TIMEOUT if the mutex can't be locked
+ // during the given number of milliseconds
+ wxMutexError LockTimeout(unsigned long ms);
+
// Try to lock the mutex: if it is currently locked, return immediately
// with an error. Otherwise the caller must call Unlock().
wxMutexError TryLock();
friend class wxConditionInternal;
- DECLARE_NO_COPY_CLASS(wxMutex)
+ wxDECLARE_NO_COPY_CLASS(wxMutex);
};
// a helper class which locks the mutex in the ctor and unlocks it in the dtor:
// this ensures that mutex is always unlocked, even if the function returns or
// throws an exception before it reaches the end
-class WXDLLEXPORT wxMutexLocker
+class WXDLLIMPEXP_BASE wxMutexLocker
{
public:
// lock the mutex in the ctor
wxMutexLocker(wxMutex& mutex)
- : m_isOk(FALSE), m_mutex(mutex)
+ : m_isOk(false), m_mutex(mutex)
{ m_isOk = ( m_mutex.Lock() == wxMUTEX_NO_ERROR ); }
- // returns TRUE if mutex was successfully locked in ctor
+ // returns true if mutex was successfully locked in ctor
bool IsOk() const
{ return m_isOk; }
// in order to avoid any overhead under platforms where critical sections are
// just mutexes make all wxCriticalSection class functions inline
-#if !defined(__WXMSW__) && !defined(__WXPM__)
+#if !defined(__WXMSW__)
#define wxCRITSECT_IS_MUTEX 1
- #define wxCRITSECT_INLINE inline
-#else // MSW || OS2
+ #define wxCRITSECT_INLINE WXEXPORT inline
+#else // MSW
#define wxCRITSECT_IS_MUTEX 0
#define wxCRITSECT_INLINE
#endif // MSW/!MSW
+enum wxCriticalSectionType
+{
+ // recursive critical section
+ wxCRITSEC_DEFAULT,
+
+ // non-recursive critical section
+ wxCRITSEC_NON_RECURSIVE
+};
+
// you should consider wxCriticalSectionLocker whenever possible instead of
// directly working with wxCriticalSection class - it is safer
-class WXDLLEXPORT wxCriticalSection
+class WXDLLIMPEXP_BASE wxCriticalSection
{
public:
// ctor & dtor
- wxCRITSECT_INLINE wxCriticalSection();
+ wxCRITSECT_INLINE wxCriticalSection( wxCriticalSectionType critSecType = wxCRITSEC_DEFAULT );
wxCRITSECT_INLINE ~wxCriticalSection();
-
// enter the section (the same as locking a mutex)
wxCRITSECT_INLINE void Enter();
+ // try to enter the section (the same as trying to lock a mutex)
+ wxCRITSECT_INLINE bool TryEnter();
+
// leave the critical section (same as unlocking a mutex)
wxCRITSECT_INLINE void Leave();
#elif defined(__WXMSW__)
// we can't allocate any memory in the ctor, so use placement new -
// unfortunately, we have to hardcode the sizeof() here because we can't
- // include windows.h from this public header
+ // include windows.h from this public header and we also have to use the
+ // union to force the correct (i.e. maximal) alignment
//
// if CRITICAL_SECTION size changes in Windows, you'll get an assert from
// thread.cpp and will need to increase the buffer size
- char m_buffer[24];
-#else
- // nothing for OS/2
-#endif // Unix/Win32/OS2
+ //
+ // finally, we need this typedef instead of declaring m_buffer directly
+ // because otherwise the assert mentioned above wouldn't compile with some
+ // compilers (notably CodeWarrior 8)
+#ifdef __WIN64__
+ typedef char wxCritSectBuffer[40];
+#else // __WIN32__
+ typedef char wxCritSectBuffer[24];
+#endif
+ union
+ {
+ unsigned long m_dummy1;
+ void *m_dummy2;
- DECLARE_NO_COPY_CLASS(wxCriticalSection)
+ wxCritSectBuffer m_buffer;
+ };
+#endif // Unix&OS2/Win32
+
+ wxDECLARE_NO_COPY_CLASS(wxCriticalSection);
};
#if wxCRITSECT_IS_MUTEX
// implement wxCriticalSection using mutexes
- inline wxCriticalSection::wxCriticalSection() { }
+ inline wxCriticalSection::wxCriticalSection( wxCriticalSectionType critSecType )
+ : m_mutex( critSecType == wxCRITSEC_DEFAULT ? wxMUTEX_RECURSIVE : wxMUTEX_DEFAULT ) { }
inline wxCriticalSection::~wxCriticalSection() { }
inline void wxCriticalSection::Enter() { (void)m_mutex.Lock(); }
+ inline bool wxCriticalSection::TryEnter() { return m_mutex.TryLock() == wxMUTEX_NO_ERROR; }
inline void wxCriticalSection::Leave() { (void)m_mutex.Unlock(); }
#endif // wxCRITSECT_IS_MUTEX
#undef wxCRITSECT_IS_MUTEX
// wxCriticalSectionLocker is the same to critical sections as wxMutexLocker is
-// to th mutexes
-class WXDLLEXPORT wxCriticalSectionLocker
+// to mutexes
+class WXDLLIMPEXP_BASE wxCriticalSectionLocker
{
public:
wxCriticalSectionLocker(wxCriticalSection& cs)
private:
wxCriticalSection& m_critsect;
- DECLARE_NO_COPY_CLASS(wxCriticalSectionLocker)
+ wxDECLARE_NO_COPY_CLASS(wxCriticalSectionLocker);
};
// ----------------------------------------------------------------------------
// thread(s) to wait until some condition is fulfilled
// ----------------------------------------------------------------------------
-class WXDLLEXPORT wxCondition
+class WXDLLIMPEXP_BASE wxCondition
{
public:
// Each wxCondition object is associated with a (single) wxMutex object.
// dtor is not virtual, don't use this class polymorphically
~wxCondition();
- // return TRUE if the condition has been created successfully
+ // return true if the condition has been created successfully
bool IsOk() const;
// NB: the associated mutex MUST be locked beforehand by the calling thread
- //
+ //
// it atomically releases the lock on the associated mutex
// and starts waiting to be woken up by a Signal()/Broadcast()
// once its signaled, then it will wait until it can reacquire
wxCondError Wait();
// exactly as Wait() except that it may also return if the specified
- // timeout ellapses even if the condition hasn't been signalled: in this
- // case, the return value is FALSE, otherwise (i.e. in case of a normal
- // return) it is TRUE
- //
- // the timeeout parameter specifies a interval that needs to be waited in
- // milliseconds
+ // timeout elapses even if the condition hasn't been signalled: in this
+ // case, the return value is false, otherwise (i.e. in case of a normal
+ // return) it is true
+ //
+ // the timeout parameter specifies an interval that needs to be waited for
+ // in milliseconds
wxCondError WaitTimeout(unsigned long milliseconds);
// NB: the associated mutex may or may not be locked by the calling thread
//
// this method unblocks one thread if any are blocking on the condition.
// if no thread is blocking in Wait(), then the signal is NOT remembered
- // The thread which was blocking on Wait(), will then reacquire the lock
+ // The thread which was blocking on Wait() will then reacquire the lock
// on the associated mutex object before returning
wxCondError Signal();
//
// this method unblocks all threads if any are blocking on the condition.
// if no thread is blocking in Wait(), then the signal is NOT remembered
- // The threads which were blocking on Wait(), will then reacquire the lock
+ // The threads which were blocking on Wait() will then reacquire the lock
// on the associated mutex object before returning.
wxCondError Broadcast();
+#if WXWIN_COMPATIBILITY_2_6
// deprecated version, don't use
- bool Wait(unsigned long milliseconds)
- { return WaitTimeout(milliseconds) == wxCOND_NO_ERROR; }
+ wxDEPRECATED( bool Wait(unsigned long milliseconds) );
+#endif // WXWIN_COMPATIBILITY_2_6
private:
wxConditionInternal *m_internal;
- DECLARE_NO_COPY_CLASS(wxCondition)
+ wxDECLARE_NO_COPY_CLASS(wxCondition);
};
+#if WXWIN_COMPATIBILITY_2_6
+ inline bool wxCondition::Wait(unsigned long milliseconds)
+ { return WaitTimeout(milliseconds) == wxCOND_NO_ERROR; }
+#endif // WXWIN_COMPATIBILITY_2_6
+
// ----------------------------------------------------------------------------
// wxSemaphore: a counter limiting the number of threads concurrently accessing
// a shared resource
// ----------------------------------------------------------------------------
-class WXDLLEXPORT wxSemaphore
+class WXDLLIMPEXP_BASE wxSemaphore
{
public:
// specifying a maxcount of 0 actually makes wxSemaphore behave as if there
// dtor is not virtual, don't use this class polymorphically
~wxSemaphore();
- // return TRUE if the semaphore has been created successfully
+ // return true if the semaphore has been created successfully
bool IsOk() const;
// wait indefinitely, until the semaphore count goes beyond 0
wxSemaError TryWait();
// same as Wait(), but as a timeout limit, returns wxSEMA_NO_ERROR if the
- // semaphore was acquired and wxSEMA_TIMEOUT if the timeout has ellapsed
+ // semaphore was acquired and wxSEMA_TIMEOUT if the timeout has elapsed
wxSemaError WaitTimeout(unsigned long milliseconds);
// increments the semaphore count and signals one of the waiting threads
private:
wxSemaphoreInternal *m_internal;
- DECLARE_NO_COPY_CLASS(wxSemaphore)
+ wxDECLARE_NO_COPY_CLASS(wxSemaphore);
};
// ----------------------------------------------------------------------------
-// wxThread: class encpasulating a thread of execution
+// wxThread: class encapsulating a thread of execution
// ----------------------------------------------------------------------------
// there are two different kinds of threads: joinable and detached (default)
typedef unsigned long wxThreadIdType;
#endif
-class WXDLLEXPORT wxThread
+class WXDLLIMPEXP_BASE wxThread
{
public:
// the return type for the thread function
static wxThread *This();
// Returns true if current thread is the main thread.
- static bool IsMain();
+ //
+ // Notice that it also returns true if main thread id hadn't been
+ // initialized yet on the assumption that it's too early in wx startup
+ // process for any other threads to have been created in this case.
+ static bool IsMain()
+ {
+ return !ms_idMainThread || GetCurrentId() == ms_idMainThread;
+ }
- // Release the rest of our time slice leting the other threads run
+ // Return the main thread id
+ static wxThreadIdType GetMainId() { return ms_idMainThread; }
+
+ // Release the rest of our time slice letting the other threads run
static void Yield();
// Sleep during the specified period of time in milliseconds
//
- // NB: at least under MSW worker threads can not call ::wxSleep()!
+ // This is the same as wxMilliSleep().
static void Sleep(unsigned long milliseconds);
// get the number of system CPUs - useful with SetConcurrency()
// Get the platform specific thread ID and return as a long. This
// can be used to uniquely identify threads, even if they are not
// wxThreads. This is used by wxPython.
- static wxThreadIdType GetCurrentId();
+ static wxThreadIdType GetCurrentId();
// sets the concurrency level: this is, roughly, the number of threads
// the system tries to schedule to run in parallel. 0 means the
// default value (usually acceptable, but may not yield the best
// performance for this process)
//
- // Returns TRUE on success, FALSE otherwise (if not implemented, for
+ // Returns true on success, false otherwise (if not implemented, for
// example)
static bool SetConcurrency(size_t level);
// does it!
//
// will fill the rc pointer with the thread exit code if it's !NULL
- wxThreadError Delete(ExitCode *rc = (ExitCode *)NULL);
+ wxThreadError Delete(ExitCode *rc = NULL,
+ wxThreadWait waitMode = wxTHREAD_WAIT_DEFAULT);
// waits for a joinable thread to finish and returns its exit code
//
// Returns (ExitCode)-1 on error (for example, if the thread is not
// joinable)
- ExitCode Wait();
+ ExitCode Wait(wxThreadWait waitMode = wxTHREAD_WAIT_DEFAULT);
// kills the thread without giving it any chance to clean up - should
- // not be used in normal circumstances, use Delete() instead. It is a
- // dangerous function that should only be used in the most extreme
- // cases!
+ // not be used under normal circumstances, use Delete() instead.
+ // It is a dangerous function that should only be used in the most
+ // extreme cases!
//
// The wxThread object is deleted by Kill() if the thread is
// detachable, but you still have to delete it manually for joinable
// identifies a thread inside a process
wxThreadIdType GetId() const;
- // called when the thread exits - in the context of this thread
- //
- // NB: this function will not be called if the thread is Kill()ed
- virtual void OnExit() { }
+ wxThreadKind GetKind() const
+ { return m_isDetached ? wxTHREAD_DETACHED : wxTHREAD_JOINABLE; }
+
+ // Returns true if the thread was asked to terminate: this function should
+ // be called by the thread from time to time, otherwise the main thread
+ // will be left forever in Delete()!
+ virtual bool TestDestroy();
// dtor is public, but the detached threads should never be deleted - use
// Delete() instead (or leave the thread terminate by itself)
virtual ~wxThread();
protected:
- // Returns TRUE if the thread was asked to terminate: this function should
- // be called by the thread from time to time, otherwise the main thread
- // will be left forever in Delete()!
- bool TestDestroy();
-
// exits from the current thread - can be called only from this thread
void Exit(ExitCode exitcode = 0);
// of this thread.
virtual void *Entry() = 0;
+
+ // Callbacks which may be overridden by the derived class to perform some
+ // specific actions when the thread is deleted or killed. By default they
+ // do nothing.
+
+ // This one is called by Delete() before actually deleting the thread and
+ // is executed in the context of the thread that called Delete().
+ virtual void OnDelete() {}
+
+ // This one is called by Kill() before killing the thread and is executed
+ // in the context of the thread that called Kill().
+ virtual void OnKill() {}
+
private:
// no copy ctor/assignment operator
wxThread(const wxThread&);
wxThread& operator=(const wxThread&);
+ // called when the thread exits - in the context of this thread
+ //
+ // NB: this function will not be called if the thread is Kill()ed
+ virtual void OnExit() { }
+
friend class wxThreadInternal;
+ friend class wxThreadModule;
+
+
+ // the main thread identifier, should be set on startup
+ static wxThreadIdType ms_idMainThread;
// the (platform-dependent) thread class implementation
wxThreadInternal *m_internal;
bool m_isDetached;
};
+// wxThreadHelperThread class
+// --------------------------
+
+class WXDLLIMPEXP_BASE wxThreadHelperThread : public wxThread
+{
+public:
+ // constructor only creates the C++ thread object and doesn't create (or
+ // start) the real thread
+ wxThreadHelperThread(wxThreadHelper& owner, wxThreadKind kind)
+ : wxThread(kind), m_owner(owner)
+ { }
+
+protected:
+ // entry point for the thread -- calls Entry() in owner.
+ virtual void *Entry();
+
+private:
+ // the owner of the thread
+ wxThreadHelper& m_owner;
+
+ // no copy ctor/assignment operator
+ wxThreadHelperThread(const wxThreadHelperThread&);
+ wxThreadHelperThread& operator=(const wxThreadHelperThread&);
+};
+
+// ----------------------------------------------------------------------------
+// wxThreadHelper: this class implements the threading logic to run a
+// background task in another object (such as a window). It is a mix-in: just
+// derive from it to implement a threading background task in your class.
+// ----------------------------------------------------------------------------
+
+class WXDLLIMPEXP_BASE wxThreadHelper
+{
+private:
+ void KillThread()
+ {
+ // If wxThreadHelperThread is detached and is about to finish, it will
+ // set m_thread to NULL so don't delete it then.
+ // But if KillThread is called before wxThreadHelperThread (in detached mode)
+ // sets it to NULL, then the thread object still exists and can be killed
+ wxCriticalSectionLocker locker(m_critSection);
+
+ if ( m_thread )
+ {
+ m_thread->Kill();
+
+ if ( m_kind == wxTHREAD_JOINABLE )
+ delete m_thread;
+
+ m_thread = NULL;
+ }
+ }
+
+public:
+ // constructor only initializes m_thread to NULL
+ wxThreadHelper(wxThreadKind kind = wxTHREAD_JOINABLE)
+ : m_thread(NULL), m_kind(kind) { }
+
+ // destructor deletes m_thread
+ virtual ~wxThreadHelper() { KillThread(); }
+
+#if WXWIN_COMPATIBILITY_2_8
+ wxDEPRECATED( wxThreadError Create(unsigned int stackSize = 0) );
+#endif
+
+ // create a new thread (and optionally set the stack size on platforms that
+ // support/need that), call Run() to start it
+ wxThreadError CreateThread(wxThreadKind kind = wxTHREAD_JOINABLE,
+ unsigned int stackSize = 0)
+ {
+ KillThread();
+
+ m_kind = kind;
+ m_thread = new wxThreadHelperThread(*this, m_kind);
+
+ return m_thread->Create(stackSize);
+ }
+
+ // entry point for the thread - called by Run() and executes in the context
+ // of this thread.
+ virtual void *Entry() = 0;
+
+ // returns a pointer to the thread which can be used to call Run()
+ wxThread *GetThread() const
+ {
+ wxCriticalSectionLocker locker((wxCriticalSection&)m_critSection);
+
+ wxThread* thread = m_thread;
+
+ return thread;
+ }
+
+protected:
+ wxThread *m_thread;
+ wxThreadKind m_kind;
+ wxCriticalSection m_critSection; // To guard the m_thread variable
+
+ friend class wxThreadHelperThread;
+};
+
+#if WXWIN_COMPATIBILITY_2_8
+inline wxThreadError wxThreadHelper::Create(unsigned int stackSize)
+{ return CreateThread(m_kind, stackSize); }
+#endif
+
+// call Entry() in owner, put it down here to avoid circular declarations
+inline void *wxThreadHelperThread::Entry()
+{
+ void * const result = m_owner.Entry();
+
+ wxCriticalSectionLocker locker(m_owner.m_critSection);
+
+ // Detached thread will be deleted after returning, so make sure
+ // wxThreadHelper::GetThread will not return an invalid pointer.
+ // And that wxThreadHelper::KillThread will not try to kill
+ // an already deleted thread
+ if ( m_owner.m_kind == wxTHREAD_DETACHED )
+ m_owner.m_thread = NULL;
+
+ return result;
+}
+
// ----------------------------------------------------------------------------
// Automatic initialization
// ----------------------------------------------------------------------------
// GUI mutex handling.
-void WXDLLEXPORT wxMutexGuiEnter();
-void WXDLLEXPORT wxMutexGuiLeave();
+void WXDLLIMPEXP_BASE wxMutexGuiEnter();
+void WXDLLIMPEXP_BASE wxMutexGuiLeave();
// macros for entering/leaving critical sections which may be used without
// having to take them inside "#if wxUSE_THREADS"
#define wxENTER_CRIT_SECT(cs) (cs).Enter()
#define wxLEAVE_CRIT_SECT(cs) (cs).Leave()
#define wxCRIT_SECT_DECLARE(cs) static wxCriticalSection cs
+#define wxCRIT_SECT_DECLARE_MEMBER(cs) wxCriticalSection cs
#define wxCRIT_SECT_LOCKER(name, cs) wxCriticalSectionLocker name(cs)
+// function for checking if we're in the main thread which may be used whether
+// wxUSE_THREADS is 0 or 1
+inline bool wxIsMainThread() { return wxThread::IsMain(); }
+
#else // !wxUSE_THREADS
// no thread support
-inline void WXDLLEXPORT wxMutexGuiEnter() { }
-inline void WXDLLEXPORT wxMutexGuiLeave() { }
+inline void wxMutexGuiEnter() { }
+inline void wxMutexGuiLeave() { }
// macros for entering/leaving critical sections which may be used without
// having to take them inside "#if wxUSE_THREADS"
-#define wxENTER_CRIT_SECT(cs)
-#define wxLEAVE_CRIT_SECT(cs)
-#define wxCRIT_SECT_DECLARE(cs)
-#define wxCRIT_SECT_LOCKER(name, cs)
+// (the implementation uses dummy structs to force semicolon after the macro;
+// also notice that Watcom doesn't like declaring a struct as a member so we
+// need to actually define it in wxCRIT_SECT_DECLARE_MEMBER)
+#define wxENTER_CRIT_SECT(cs) do {} while (0)
+#define wxLEAVE_CRIT_SECT(cs) do {} while (0)
+#define wxCRIT_SECT_DECLARE(cs) struct wxDummyCS##cs
+#define wxCRIT_SECT_DECLARE_MEMBER(cs) struct wxDummyCSMember##cs { }
+#define wxCRIT_SECT_LOCKER(name, cs) struct wxDummyCSLocker##name
+
+// if there is only one thread, it is always the main one
+inline bool wxIsMainThread() { return true; }
#endif // wxUSE_THREADS/!wxUSE_THREADS
wxCRIT_SECT_LOCKER(cs##name##Locker, s_cs##name)
// automatically lock GUI mutex in ctor and unlock it in dtor
-class WXDLLEXPORT wxMutexGuiLocker
+class WXDLLIMPEXP_BASE wxMutexGuiLocker
{
public:
wxMutexGuiLocker() { wxMutexGuiEnter(); }
#if wxUSE_THREADS
-#if defined(__WXMSW__) || defined(__WXMAC__) || defined(__WXPM__)
+#if defined(__WXMSW__) || defined(__OS2__) || defined(__EMX__) || defined(__WXOSX__)
// unlock GUI if there are threads waiting for and lock it back when
// there are no more of them - should be called periodically by the main
// thread
- extern void WXDLLEXPORT wxMutexGuiLeaveOrEnter();
+ extern void WXDLLIMPEXP_BASE wxMutexGuiLeaveOrEnter();
- // returns TRUE if the main thread has GUI lock
- extern bool WXDLLEXPORT wxGuiOwnedByMainThread();
+ // returns true if the main thread has GUI lock
+ extern bool WXDLLIMPEXP_BASE wxGuiOwnedByMainThread();
-#ifndef __WXPM__
// wakes up the main thread if it's sleeping inside ::GetMessage()
- extern void WXDLLEXPORT wxWakeUpMainThread();
-#endif // !OS/2
+ extern void WXDLLIMPEXP_BASE wxWakeUpMainThread();
- // return TRUE if the main thread is waiting for some other to terminate:
+#ifndef __WXOSX__
+ // return true if the main thread is waiting for some other to terminate:
// wxApp then should block all "dangerous" messages
- extern bool WXDLLEXPORT wxIsWaitingForThread();
-#endif // MSW, Mac, OS/2
+ extern bool WXDLLIMPEXP_BASE wxIsWaitingForThread();
+#endif
+#endif // MSW, OS/2
#endif // wxUSE_THREADS
#endif // _WX_THREAD_H_
-
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