X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/ca9e2173a63d0e5a56fa9c2f8e1ff6ff32a9b71f..af67f39da8ecf7c29ba5071ac49456d506c111cf:/include/wx/thread.h?ds=sidebyside diff --git a/include/wx/thread.h b/include/wx/thread.h index 4eed53d1bf..0b237cb4f2 100644 --- a/include/wx/thread.h +++ b/include/wx/thread.h @@ -207,24 +207,29 @@ private: #if !defined(__WXMSW__) #define wxCRITSECT_IS_MUTEX 1 -#ifdef __WXMAC__ - #define wxCRITSECT_INLINE -#else - #define wxCRITSECT_INLINE inline -#endif + #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(); @@ -264,9 +269,10 @@ private: DECLARE_NO_COPY_CLASS(wxCriticalSection) }; -#if wxCRITSECT_IS_MUTEX && !defined(__WXMAC__) +#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(); } @@ -549,10 +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 @@ -576,6 +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 @@ -624,20 +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; } } @@ -650,12 +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); @@ -669,9 +683,9 @@ public: wxThread *GetThread() const { wxCriticalSectionLocker locker((wxCriticalSection&)m_critSection); - + wxThread* thread = m_thread; - + return thread; } @@ -679,24 +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; }