X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/ac9e3f1f1c4ba844c5598aa577e51d128dd5921b..2903e6998a46a0b3504da30e21a9c28b344680ae:/include/wx/thread.h?ds=inline diff --git a/include/wx/thread.h b/include/wx/thread.h index 53e177f515..0b237cb4f2 100644 --- a/include/wx/thread.h +++ b/include/wx/thread.h @@ -204,25 +204,33 @@ private: // in order to avoid any overhead under platforms where critical sections are // just mutexes make all wxCriticalSection class functions inline -#if !defined(__WXMSW__) && ( !defined(__WXMAC__) || wxOSX_USE_COCOA_OR_IPHONE ) +#if !defined(__WXMSW__) #define wxCRITSECT_IS_MUTEX 1 - #define wxCRITSECT_INLINE inline + #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 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(); @@ -256,8 +264,6 @@ private: wxCritSectBuffer m_buffer; }; -#elif defined(__WXMAC__) - void *m_critRegion ; #endif // Unix&OS2/Win32 DECLARE_NO_COPY_CLASS(wxCriticalSection) @@ -265,7 +271,8 @@ private: #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(); } @@ -548,10 +555,8 @@ public: // 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 @@ -575,6 +580,11 @@ private: 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; // the (platform-dependent) thread class implementation @@ -623,20 +633,19 @@ class WXDLLIMPEXP_BASE wxThreadHelper private: void KillThread() { - // If detached thread is about to finish, it will set - // m_thread to NULL so don't delete it then - // But if KillThread is called before detached thread - // sets it to NULL, then the thread object still - // exists and can be killed + // 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; } } @@ -649,12 +658,18 @@ public: // 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 Create(unsigned int stackSize = 0) + 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); @@ -668,9 +683,9 @@ public: wxThread *GetThread() const { wxCriticalSectionLocker locker((wxCriticalSection&)m_critSection); - + wxThread* thread = m_thread; - + return thread; } @@ -678,24 +693,29 @@ 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; } @@ -774,7 +794,7 @@ public: #if wxUSE_THREADS -#if defined(__WXMSW__) || defined(__WXMAC__) || defined(__OS2__) || defined(__EMX__) +#if defined(__WXMSW__) || defined(__OS2__) || defined(__EMX__) // 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 @@ -789,7 +809,7 @@ public: // return true if the main thread is waiting for some other to terminate: // wxApp then should block all "dangerous" messages extern bool WXDLLIMPEXP_BASE wxIsWaitingForThread(); -#endif // MSW, Mac, OS/2 +#endif // MSW, OS/2 #endif // wxUSE_THREADS