X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/b2680ced12cbbed16990007c5fa3ea7730700122..472137baebae6c011ad7d70285de454b9ce7796d:/src/osx/carbon/thread.cpp

diff --git a/src/osx/carbon/thread.cpp b/src/osx/carbon/thread.cpp
index d8bcd279da..f780d4bc03 100644
--- a/src/osx/carbon/thread.cpp
+++ b/src/osx/carbon/thread.cpp
@@ -1,5 +1,5 @@
 /////////////////////////////////////////////////////////////////////////////
-// Name:        src/mac/carbon/thread.cpp
+// Name:        src/osx/carbon/thread.cpp
 // Purpose:     wxThread Implementation
 // Author:      Original from Wolfram Gloger/Guilhem Lavaux/Vadim Zeitlin
 // Modified by: Aj Lavin, Stefan Csomor
@@ -106,7 +106,7 @@ MPCriticalRegionID gs_guiCritical = kInvalidID;
 // wxCriticalSection
 // ----------------------------------------------------------------------------
 
-wxCriticalSection::wxCriticalSection()
+wxCriticalSection::wxCriticalSection( wxCriticalSectionType WXUNUSED(critSecType) )
 {
     MPCreateCriticalRegion( (MPCriticalRegionID*) &m_critRegion );
 }
@@ -134,270 +134,6 @@ void wxCriticalSection::Leave()
 #define wxUSE_MAC_CRITICAL_REGION_MUTEX 1
 #define wxUSE_MAC_PTHREADS_MUTEX 0
 
-#if wxUSE_MAC_PTHREADS_MUTEX
-
-#include <pthread.h>
-
-
-class wxMutexInternal
-{
-public:
-    wxMutexInternal( wxMutexType mutexType );
-    ~wxMutexInternal();
-
-    wxMutexError Lock();
-    wxMutexError TryLock();
-    wxMutexError Unlock();
-
-    bool IsOk() const
-    { return m_isOk; }
-
-private:
-    pthread_mutex_t m_mutex;
-    bool m_isOk;
-
-    // wxConditionInternal uses our m_mutex
-    friend class wxConditionInternal;
-};
-
-#ifdef HAVE_PTHREAD_MUTEXATTR_T
-// on some systems pthread_mutexattr_settype() is not in the headers (but it is
-// in the library, otherwise we wouldn't compile this code at all)
-extern "C" int pthread_mutexattr_settype( pthread_mutexattr_t *, int );
-#endif
-
-wxMutexInternal::wxMutexInternal( wxMutexType mutexType )
-{
-    int err;
-    switch ( mutexType )
-    {
-        case wxMUTEX_RECURSIVE:
-            // support recursive locks like Win32, i.e. a thread can lock a
-            // mutex which it had itself already locked
-            //
-            // unfortunately initialization of recursive mutexes is non
-            // portable, so try several methods
-#ifdef HAVE_PTHREAD_MUTEXATTR_T
-            {
-                pthread_mutexattr_t attr;
-                pthread_mutexattr_init( &attr );
-                pthread_mutexattr_settype( &attr, PTHREAD_MUTEX_RECURSIVE );
-
-                err = pthread_mutex_init( &m_mutex, &attr );
-            }
-#elif defined(HAVE_PTHREAD_RECURSIVE_MUTEX_INITIALIZER)
-            // we can use this only as initializer so we have to assign it
-            // first to a temp var - assigning directly to m_mutex wouldn't
-            // even compile
-            {
-                pthread_mutex_t mutex = PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP;
-                m_mutex = mutex;
-            }
-#else // no recursive mutexes
-            err = EINVAL;
-#endif // HAVE_PTHREAD_MUTEXATTR_T/...
-            break;
-
-        default:
-            wxFAIL_MSG( wxT("unknown mutex type") );
-            // fall through
-
-        case wxMUTEX_DEFAULT:
-            err = pthread_mutex_init( &m_mutex, NULL );
-            break;
-    }
-
-    m_isOk = err == 0;
-    if ( !m_isOk )
-    {
-        wxLogApiError( wxT("pthread_mutex_init()"), err );
-    }
-}
-
-wxMutexInternal::~wxMutexInternal()
-{
-    if ( m_isOk )
-    {
-        int err = pthread_mutex_destroy( &m_mutex );
-        if ( err != 0 )
-        {
-            wxLogApiError( wxT("pthread_mutex_destroy()"), err );
-        }
-    }
-}
-
-wxMutexError wxMutexInternal::Lock()
-{
-    int err = pthread_mutex_lock( &m_mutex );
-    switch ( err )
-    {
-        case EDEADLK:
-            // only error checking mutexes return this value and so it's an
-            // unexpected situation -- hence use assert, not wxLogDebug
-            wxFAIL_MSG( wxT("mutex deadlock prevented") );
-            return wxMUTEX_DEAD_LOCK;
-
-        case EINVAL:
-            wxLogDebug( wxT("pthread_mutex_lock(): mutex not initialized.") );
-            break;
-
-        case 0:
-            return wxMUTEX_NO_ERROR;
-
-        default:
-            wxLogApiError( wxT("pthread_mutex_lock()"), err );
-    }
-
-    return wxMUTEX_MISC_ERROR;
-}
-
-wxMutexError wxMutexInternal::TryLock()
-{
-    int err = pthread_mutex_trylock( &m_mutex );
-    switch ( err )
-    {
-        case EBUSY:
-            // not an error: mutex is already locked, but we're prepared for this case
-            return wxMUTEX_BUSY;
-
-        case EINVAL:
-            wxLogDebug( wxT("pthread_mutex_trylock(): mutex not initialized.") );
-            break;
-
-        case 0:
-            return wxMUTEX_NO_ERROR;
-
-        default:
-            wxLogApiError( wxT("pthread_mutex_trylock()"), err );
-    }
-
-    return wxMUTEX_MISC_ERROR;
-}
-
-wxMutexError wxMutexInternal::Unlock()
-{
-    int err = pthread_mutex_unlock( &m_mutex );
-    switch ( err )
-    {
-        case EPERM:
-            // we don't own the mutex
-            return wxMUTEX_UNLOCKED;
-
-        case EINVAL:
-            wxLogDebug( wxT("pthread_mutex_unlock(): mutex not initialized.") );
-            break;
-
-        case 0:
-            return wxMUTEX_NO_ERROR;
-
-        default:
-            wxLogApiError( wxT("pthread_mutex_unlock()"), err );
-    }
-
-    return wxMUTEX_MISC_ERROR;
-}
-
-#endif
-
-#if wxUSE_MAC_SEMAPHORE_MUTEX
-
-class wxMutexInternal
-{
-public:
-    wxMutexInternal( wxMutexType mutexType );
-    virtual ~wxMutexInternal();
-
-    bool IsOk() const
-    { return m_isOk; }
-
-    wxMutexError Lock();
-    wxMutexError TryLock();
-    wxMutexError Unlock();
-
-private:
-    MPSemaphoreID m_semaphore;
-    bool m_isOk;
-};
-
-wxMutexInternal::wxMutexInternal(wxMutexType mutexType )
-{
-    m_isOk = false;
-    m_semaphore = kInvalidID;
-    OSStatus err = noErr;
-
-    switch ( mutexType )
-    {
-        case wxMUTEX_DEFAULT :
-            verify_noerr( MPCreateBinarySemaphore( &m_semaphore ) );
-            m_isOk = ( m_semaphore != kInvalidID );
-            break;
-
-        case wxMUTEX_RECURSIVE :
-            wxFAIL_MSG( wxT("Recursive Mutex not supported yet") );
-            break;
-
-        default :
-            wxFAIL_MSG( wxT("Unknown mutex type") );
-            break;
-    }
-}
-
-wxMutexInternal::~wxMutexInternal()
-{
-    if ( m_semaphore != kInvalidID )
-        MPDeleteSemaphore( m_semaphore );
-
-    MPYield();
-}
-
-wxMutexError wxMutexInternal::Lock()
-{
-    wxCHECK_MSG( m_isOk, wxMUTEX_MISC_ERROR, wxT("Invalid Mutex") );
-    OSStatus err = MPWaitOnSemaphore( m_semaphore, kDurationForever );
-    if (err != noErr)
-    {
-        wxLogSysError( wxT("Could not lock mutex") );
-
-        return wxMUTEX_MISC_ERROR;
-    }
-
-    return wxMUTEX_NO_ERROR;
-}
-
-wxMutexError wxMutexInternal::TryLock()
-{
-    wxCHECK_MSG( m_isOk, wxMUTEX_MISC_ERROR, wxT("Invalid Mutex") );
-    OSStatus err = MPWaitOnSemaphore( m_semaphore, kDurationImmediate );
-    if (err != noErr)
-    {
-        if (err == kMPTimeoutErr)
-            return wxMUTEX_BUSY;
-
-        wxLogSysError( wxT("Could not try lock mutex") );
-
-        return wxMUTEX_MISC_ERROR;
-    }
-
-    return wxMUTEX_NO_ERROR;
-}
-
-wxMutexError wxMutexInternal::Unlock()
-{
-    wxCHECK_MSG( m_isOk, wxMUTEX_MISC_ERROR, wxT("Invalid Mutex") );
-    OSStatus err = MPSignalSemaphore( m_semaphore );
-
-    MPYield();
-    if (err != noErr)
-    {
-        wxLogSysError( wxT("Could not unlock mutex") );
-        return wxMUTEX_MISC_ERROR;
-    }
-
-    return wxMUTEX_NO_ERROR;
-}
-
-#endif
-
 #if wxUSE_MAC_CRITICAL_REGION_MUTEX
 
 class wxMutexInternal
@@ -583,177 +319,6 @@ wxSemaError wxSemaphoreInternal::Post()
 // wxCondition implementation
 // ----------------------------------------------------------------------------
 
-#if 0
-
-class wxConditionInternal
-{
-public:
-    wxConditionInternal( wxMutex& mutex )
-    :
-    m_mutex( mutex ),
-    m_semaphore( 0, 1 ),
-    m_gate( 1, 1 )
-    {
-        m_waiters = 0;
-        m_signals = 0;
-        m_canceled = 0;
-    }
-
-    virtual ~wxConditionInternal() {}
-
-    bool IsOk() const
-    { return m_mutex.IsOk(); }
-
-    wxCondError Wait()
-    { return WaitTimeout( kDurationForever ); }
-
-    wxCondError WaitTimeout( unsigned long msectimeout );
-
-    wxCondError Signal()
-    { return DoSignal( false); }
-
-    wxCondError Broadcast()
-    { return DoSignal( true ); }
-
-private:
-    wxCondError DoSignal( bool signalAll );
-
-    wxMutex& m_mutex;
-    wxSemaphoreInternal m_semaphore;  // Signals the waiting threads.
-    wxSemaphoreInternal m_gate;
-    wxCriticalSection m_varSection;
-    size_t m_waiters; // Number of threads waiting for a signal.
-    size_t m_signals; // Number of signals to send.
-    size_t m_canceled; // Number of canceled waiters in m_waiters.
-};
-
-wxCondError wxConditionInternal::WaitTimeout( unsigned long msectimeout )
-{
-    m_gate.Wait();
-
-    if ( ++ m_waiters == INT_MAX )
-    {
-        m_varSection.Enter();
-
-        m_waiters -= m_canceled;
-        m_signals -= m_canceled;
-        m_canceled = 0;
-
-        m_varSection.Leave();
-    }
-
-    m_gate.Post();
-    m_mutex.Unlock();
-
-    wxSemaError err = m_semaphore.WaitTimeout( msectimeout);
-    wxASSERT( err == wxSEMA_NO_ERROR || err == wxSEMA_TIMEOUT);
-
-    m_varSection.Enter();
-
-    if ( err != wxSEMA_NO_ERROR )
-    {
-        if ( m_signals > m_canceled )
-        {
-            // A signal is being sent after we timed out.
-            if ( m_waiters == m_signals )
-            {
-                // There are no excess waiters to catch the signal, so
-                // we must throw it away.
-                wxSemaError err2 = m_semaphore.Wait();
-                if ( err2 != wxSEMA_NO_ERROR )
-                {
-                    wxLogSysError( wx("Error while waiting on semaphore") );
-                }
-
-                wxASSERT( err2 == wxSEMA_NO_ERROR);
-
-                --m_waiters;
-                if ( --m_signals == m_canceled )
-                {
-                    // This was the last signal. open the gate.
-                    wxASSERT( m_waiters == m_canceled );
-                    m_gate.Post();
-                }
-            }
-            else
-            {
-                // There are excess waiters to catch the signal, leave it be.
-                --m_waiters;
-            }
-        }
-        else
-        {
-            // No signals is being sent:
-            // the gate may be open or closed, so we can't touch m_waiters.
-            ++m_canceled;
-            ++m_signals;
-        }
-    }
-    else
-    {
-        // We caught a signal.
-        wxASSERT( m_signals > m_canceled );
-
-        --m_waiters;
-
-        if ( --m_signals == m_canceled)
-        {
-            // This was the last signal. open the gate.
-            wxASSERT( m_waiters == m_canceled );
-
-            m_gate.Post();
-        }
-    }
-
-    m_varSection.Leave();
-    m_mutex.Lock();
-
-    if (err != noErr)
-        return err == wxSEMA_TIMEOUT ? wxCOND_TIMEOUT : wxCOND_MISC_ERROR;
-
-    return wxCOND_NO_ERROR;
-}
-
-
-wxCondError wxConditionInternal::DoSignal( bool signalAll)
-{
-    m_gate.Wait();
-    m_varSection.Enter();
-
-    wxASSERT( m_signals == m_canceled );
-
-    if ( m_waiters == m_canceled)
-    {
-        m_varSection.Leave();
-        m_gate.Post();
-        return wxCOND_NO_ERROR;
-    }
-
-    if ( m_canceled > 0)
-    {
-        m_waiters -= m_canceled;
-        m_signals = 0;
-        m_canceled = 0;
-    }
-
-    m_signals = signalAll ? m_waiters : 1;
-    size_t n = m_signals;
-
-    m_varSection.Leave();
-
-    // Let the waiters inherit the gate lock.
-
-    do
-    {
-        wxSemaError err = m_semaphore.Post();
-        wxASSERT( err == wxSEMA_NO_ERROR );
-    }
-    while ( --n );
-
-    return wxCOND_NO_ERROR;
-}
-
-#else
 class wxConditionInternal
 {
 public:
@@ -884,7 +449,6 @@ wxCondError wxConditionInternal::Broadcast()
 
     return wxCOND_NO_ERROR;
 }
-#endif
 
 // ----------------------------------------------------------------------------
 // wxCriticalSection implementation