blind OS/2 compilation fix in wxSetWorkingDirectory()

[wxWidgets.git] / src / unix / threadpsx.cpp

diff --git a/src/unix/threadpsx.cpp b/src/unix/threadpsx.cpp
index 94c3b21af2ab8e510897aabd45eeb3c044f541b4..5d7c3bcd2aba900fe340779a8f24c01d63907ba9 100644 (file)
--- a/src/unix/threadpsx.cpp
+++ b/src/unix/threadpsx.cpp
@@ -1,5 +1,5 @@
 /////////////////////////////////////////////////////////////////////////////
 /////////////////////////////////////////////////////////////////////////////

-// Name:        threadpsx.cpp
+// Name:        src/unix/threadpsx.cpp

 // Purpose:     wxThread (Posix) Implementation
 // Author:      Original from Wolfram Gloger/Guilhem Lavaux
 // Modified by: K. S. Sreeram (2002): POSIXified wxCondition, added wxSemaphore
 // Purpose:     wxThread (Posix) Implementation
 // Author:      Original from Wolfram Gloger/Guilhem Lavaux
 // Modified by: K. S. Sreeram (2002): POSIXified wxCondition, added wxSemaphore


@@ -27,13 +27,16 @@
 #if wxUSE_THREADS
 
 #include "wx/thread.h"
 #if wxUSE_THREADS
 
 #include "wx/thread.h"

-#include "wx/module.h"
-#include "wx/utils.h"
-#include "wx/log.h"
-#include "wx/intl.h"
-#include "wx/dynarray.h"
-#include "wx/timer.h"
-#include "wx/stopwatch.h"
+
+#ifndef WX_PRECOMP
+    #include "wx/dynarray.h"
+    #include "wx/intl.h"
+    #include "wx/log.h"
+    #include "wx/utils.h"
+    #include "wx/timer.h"
+    #include "wx/stopwatch.h"
+    #include "wx/module.h"
+#endif

 
 #include <stdio.h>
 #include <unistd.h>
 
 #include <stdio.h>
 #include <unistd.h>


@@ -109,6 +112,9 @@ WX_DEFINE_ARRAY_PTR(wxThread *, wxArrayThread);
 // be left in memory
 static wxArrayThread gs_allThreads;
 
 // be left in memory
 static wxArrayThread gs_allThreads;
 

+// a mutex to protect gs_allThreads
+static wxMutex *gs_mutexAllThreads = NULL;
+

 // the id of the main thread
 static pthread_t gs_tidMain = (pthread_t)-1;
 
 // the id of the main thread
 static pthread_t gs_tidMain = (pthread_t)-1;
 


@@ -157,11 +163,16 @@ public:
     ~wxMutexInternal();
 
     wxMutexError Lock();
     ~wxMutexInternal();
 
     wxMutexError Lock();

+    wxMutexError Lock(unsigned long ms);

     wxMutexError TryLock();
     wxMutexError Unlock();
 
     bool IsOk() const { return m_isOk; }
 
     wxMutexError TryLock();
     wxMutexError Unlock();
 
     bool IsOk() const { return m_isOk; }
 

+private:
+    // convert the result of pthread_mutex_[timed]lock() call to wx return code
+    wxMutexError HandleLockResult(int err);
+

 private:
     pthread_mutex_t m_mutex;
     bool m_isOk;
 private:
     pthread_mutex_t m_mutex;
     bool m_isOk;


@@ -170,7 +181,8 @@ private:
     friend class wxConditionInternal;
 };
 
     friend class wxConditionInternal;
 };
 

-#ifdef HAVE_PTHREAD_MUTEXATTR_T
+#if defined(HAVE_PTHREAD_MUTEXATTR_T) && \
+        wxUSE_UNIX && !defined(HAVE_PTHREAD_MUTEXATTR_SETTYPE_DECL)

 // 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);
 // 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);


@@ -238,7 +250,61 @@ wxMutexInternal::~wxMutexInternal()
 
 wxMutexError wxMutexInternal::Lock()
 {
 
 wxMutexError wxMutexInternal::Lock()
 {

-    int err = pthread_mutex_lock(&m_mutex);
+    return HandleLockResult(pthread_mutex_lock(&m_mutex));
+}
+
+wxMutexError wxMutexInternal::Lock(unsigned long ms)
+{
+#ifdef HAVE_PTHREAD_MUTEX_TIMEDLOCK
+    static const long MSEC_IN_SEC   = 1000;
+    static const long NSEC_IN_MSEC  = 1000000;
+    static const long NSEC_IN_USEC  = 1000;
+    static const long NSEC_IN_SEC   = MSEC_IN_SEC * NSEC_IN_MSEC;
+
+    time_t seconds = ms/MSEC_IN_SEC;
+    long nanoseconds = (ms % MSEC_IN_SEC) * NSEC_IN_MSEC;
+    timespec ts = { 0, 0 };
+
+    // normally we should use clock_gettime(CLOCK_REALTIME) here but this
+    // function is in librt and we don't link with it currently, so use
+    // gettimeofday() instead -- if it turns out that this is really too
+    // imprecise, we should modify configure to check if clock_gettime() is
+    // available and whether it requires -lrt and use it instead
+#if 0
+    if ( clock_gettime(CLOCK_REALTIME, &ts) == 0 )
+    {
+    }
+#else
+    struct timeval tv;
+    if ( wxGetTimeOfDay(&tv) != -1 )
+    {
+        ts.tv_sec = tv.tv_sec;
+        ts.tv_nsec = tv.tv_usec*NSEC_IN_USEC;
+    }
+#endif
+    else // fall back on system timer
+    {
+        ts.tv_sec = time(NULL);
+    }
+
+    ts.tv_sec += seconds;
+    ts.tv_nsec += nanoseconds;
+    if ( ts.tv_nsec > NSEC_IN_SEC )
+    {
+        ts.tv_sec += 1;
+        ts.tv_nsec -= NSEC_IN_SEC;
+    }
+
+    return HandleLockResult(pthread_mutex_timedlock(&m_mutex, &ts));
+#else // !HAVE_PTHREAD_MUTEX_TIMEDLOCK
+    wxUnusedVar(ms);
+
+    return wxMUTEX_MISC_ERROR;
+#endif // HAVE_PTHREAD_MUTEX_TIMEDLOCK/!HAVE_PTHREAD_MUTEX_TIMEDLOCK
+}
+
+wxMutexError wxMutexInternal::HandleLockResult(int err)
+{

     switch ( err )
     {
         case EDEADLK:
     switch ( err )
     {
         case EDEADLK:


@@ -248,19 +314,23 @@ wxMutexError wxMutexInternal::Lock()
             return wxMUTEX_DEAD_LOCK;
 
         case EINVAL:
             return wxMUTEX_DEAD_LOCK;
 
         case EINVAL:

-            wxLogDebug(_T("pthread_mutex_lock(): mutex not initialized."));
+            wxLogDebug(_T("pthread_mutex_[timed]lock(): mutex not initialized"));

             break;
 
             break;
 

+        case ETIMEDOUT:
+            return wxMUTEX_TIMEOUT;
+

         case 0:
             return wxMUTEX_NO_ERROR;
 
         default:
         case 0:
             return wxMUTEX_NO_ERROR;
 
         default:

-            wxLogApiError(_T("pthread_mutex_lock()"), err);
+            wxLogApiError(_T("pthread_mutex_[timed]lock()"), err);

     }
 
     return wxMUTEX_MISC_ERROR;
 }
 
     }
 
     return wxMUTEX_MISC_ERROR;
 }
 

+

 wxMutexError wxMutexInternal::TryLock()
 {
     int err = pthread_mutex_trylock(&m_mutex);
 wxMutexError wxMutexInternal::TryLock()
 {
     int err = pthread_mutex_trylock(&m_mutex);


@@ -480,7 +550,7 @@ wxSemaphoreInternal::wxSemaphoreInternal(int initialcount, int maxcount)
     {
         wxFAIL_MSG( _T("wxSemaphore: invalid initial or maximal count") );
 
     {
         wxFAIL_MSG( _T("wxSemaphore: invalid initial or maximal count") );
 

-        m_isOk = FALSE;
+        m_isOk = false;

     }
     else
     {
     }
     else
     {


@@ -648,7 +718,7 @@ public:
     pthread_t GetId() const { return m_threadId; }
     pthread_t *GetIdPtr() { return &m_threadId; }
         // "cancelled" flag
     pthread_t GetId() const { return m_threadId; }
     pthread_t *GetIdPtr() { return &m_threadId; }
         // "cancelled" flag

-    void SetCancelFlag() { m_cancelled = TRUE; }
+    void SetCancelFlag() { m_cancelled = true; }

     bool WasCancelled() const { return m_cancelled; }
         // exit code
     void SetExitCode(wxThread::ExitCode exitcode) { m_exitcode = exitcode; }
     bool WasCancelled() const { return m_cancelled; }
         // exit code
     void SetExitCode(wxThread::ExitCode exitcode) { m_exitcode = exitcode; }


@@ -663,8 +733,8 @@ public:
     {
         wxCriticalSectionLocker lock(m_csJoinFlag);
 
     {
         wxCriticalSectionLocker lock(m_csJoinFlag);
 

-        m_shouldBeJoined = FALSE;
-        m_isDetached = TRUE;
+        m_shouldBeJoined = false;
+        m_isDetached = true;

     }
 
 #ifdef wxHAVE_PTHREAD_CLEANUP
     }
 
 #ifdef wxHAVE_PTHREAD_CLEANUP


@@ -772,12 +842,21 @@ void *wxThreadInternal::PthreadStart(wxThread *thread)
         }
     }
 
         }
     }
 

-    // NB: at least under Linux, pthread_cleanup_push/pop are macros and pop
-    //     contains the matching '}' for the '{' in push, so they must be used
-    //     in the same block!
+    // NB: pthread_cleanup_push/pop() are macros and pop contains the matching
+    //     '}' for the '{' in push, so they must be used in the same block!

 #ifdef wxHAVE_PTHREAD_CLEANUP
 #ifdef wxHAVE_PTHREAD_CLEANUP

+    #ifdef __DECCXX
+        // under Tru64 we get a warning from macro expansion
+        #pragma message save
+        #pragma message disable(declbutnotref)
+    #endif
+

     // remove the cleanup handler without executing it
     pthread_cleanup_pop(FALSE);
     // remove the cleanup handler without executing it
     pthread_cleanup_pop(FALSE);

+
+    #ifdef __DECCXX
+        #pragma message restore
+    #endif

 #endif // wxHAVE_PTHREAD_CLEANUP
 
     if ( dontRunAtAll )
 #endif // wxHAVE_PTHREAD_CLEANUP
 
     if ( dontRunAtAll )


@@ -808,6 +887,7 @@ extern "C" void wxPthreadCleanup(void *ptr)
 
 void wxThreadInternal::Cleanup(wxThread *thread)
 {
 
 void wxThreadInternal::Cleanup(wxThread *thread)
 {

+    if (pthread_getspecific(gs_keySelf) == 0) return;

     {
         wxCriticalSectionLocker lock(thread->m_critsect);
         if ( thread->m_internal->GetState() == STATE_EXITED )
     {
         wxCriticalSectionLocker lock(thread->m_critsect);
         if ( thread->m_internal->GetState() == STATE_EXITED )


@@ -830,17 +910,17 @@ void wxThreadInternal::Cleanup(wxThread *thread)
 wxThreadInternal::wxThreadInternal()
 {
     m_state = STATE_NEW;
 wxThreadInternal::wxThreadInternal()
 {
     m_state = STATE_NEW;

-    m_cancelled = FALSE;
+    m_cancelled = false;

     m_prio = WXTHREAD_DEFAULT_PRIORITY;
     m_threadId = 0;
     m_exitcode = 0;
 
     m_prio = WXTHREAD_DEFAULT_PRIORITY;
     m_threadId = 0;
     m_exitcode = 0;
 

-    // set to TRUE only when the thread starts waiting on m_semSuspend
-    m_isPaused = FALSE;
+    // set to true only when the thread starts waiting on m_semSuspend
+    m_isPaused = false;

 
     // defaults for joinable threads
 
     // defaults for joinable threads

-    m_shouldBeJoined = TRUE;
-    m_isDetached = FALSE;
+    m_shouldBeJoined = true;
+    m_isDetached = false;

 }
 
 wxThreadInternal::~wxThreadInternal()
 }
 
 wxThreadInternal::~wxThreadInternal()


@@ -893,7 +973,7 @@ void wxThreadInternal::Wait()
                 wxLogError(_("Failed to join a thread, potential memory leak detected - please restart the program"));
             }
 
                 wxLogError(_("Failed to join a thread, potential memory leak detected - please restart the program"));
             }
 

-            m_shouldBeJoined = FALSE;
+            m_shouldBeJoined = false;

         }
     }
 
         }
     }
 


@@ -932,7 +1012,7 @@ void wxThreadInternal::Resume()
         m_semSuspend.Post();
 
         // reset the flag
         m_semSuspend.Post();
 
         // reset the flag

-        SetReallyPaused(FALSE);
+        SetReallyPaused(false);

     }
     else
     {
     }
     else
     {


@@ -971,7 +1051,14 @@ void wxThread::Sleep(unsigned long milliseconds)
 
 int wxThread::GetCPUCount()
 {
 
 int wxThread::GetCPUCount()
 {

-#if defined(__LINUX__) && wxUSE_FFILE
+#if defined(_SC_NPROCESSORS_ONLN)
+    // this works for Solaris and Linux 2.6
+    int rc = sysconf(_SC_NPROCESSORS_ONLN);
+    if ( rc != -1 )
+    {
+        return rc;
+    }
+#elif defined(__LINUX__) && wxUSE_FFILE

     // read from proc (can't use wxTextFile here because it's a special file:
     // it has 0 size but still can be read from)
     wxLogNull nolog;
     // read from proc (can't use wxTextFile here because it's a special file:
     // it has 0 size but still can be read from)
     wxLogNull nolog;


@@ -997,13 +1084,6 @@ int wxThread::GetCPUCount()
             wxLogDebug(_T("failed to read /proc/cpuinfo"));
         }
     }
             wxLogDebug(_T("failed to read /proc/cpuinfo"));
         }
     }

-#elif defined(_SC_NPROCESSORS_ONLN)
-    // this works for Solaris
-    int rc = sysconf(_SC_NPROCESSORS_ONLN);
-    if ( rc != -1 )
-    {
-        return rc;
-    }

 #endif // different ways to get number of CPUs
 
     // unknown
 #endif // different ways to get number of CPUs
 
     // unknown


@@ -1051,7 +1131,11 @@ bool wxThread::SetConcurrency(size_t level)
 wxThread::wxThread(wxThreadKind kind)
 {
     // add this thread to the global list of all threads
 wxThread::wxThread(wxThreadKind kind)
 {
     // add this thread to the global list of all threads

-    gs_allThreads.Add(this);
+    {
+        wxMutexLocker lock(*gs_mutexAllThreads);
+
+        gs_allThreads.Add(this);
+    }

 
     m_internal = new wxThreadInternal();
 
 
     m_internal = new wxThreadInternal();
 


@@ -1410,13 +1494,14 @@ wxThreadError wxThread::Kill()
         default:
 #ifdef HAVE_PTHREAD_CANCEL
             if ( pthread_cancel(m_internal->GetId()) != 0 )
         default:
 #ifdef HAVE_PTHREAD_CANCEL
             if ( pthread_cancel(m_internal->GetId()) != 0 )

-#endif
+#endif // HAVE_PTHREAD_CANCEL

             {
                 wxLogError(_("Failed to terminate a thread."));
 
                 return wxTHREAD_MISC_ERROR;
             }
 
             {
                 wxLogError(_("Failed to terminate a thread."));
 
                 return wxTHREAD_MISC_ERROR;
             }
 

+#ifdef HAVE_PTHREAD_CANCEL

             if ( m_isDetached )
             {
                 // if we use cleanup function, this will be done from
             if ( m_isDetached )
             {
                 // if we use cleanup function, this will be done from


@@ -1436,6 +1521,7 @@ wxThreadError wxThread::Kill()
             }
 
             return wxTHREAD_NO_ERROR;
             }
 
             return wxTHREAD_NO_ERROR;

+#endif // HAVE_PTHREAD_CANCEL

     }
 }
 
     }
 }
 


@@ -1469,6 +1555,7 @@ void wxThread::Exit(ExitCode status)
         //       we make it a global object, but this would mean that we can
         //       only call one thread function at a time :-(
         DeleteThread(this);
         //       we make it a global object, but this would mean that we can
         //       only call one thread function at a time :-(
         DeleteThread(this);

+        pthread_setspecific(gs_keySelf, 0);

     }
     else
     {
     }
     else
     {


@@ -1493,7 +1580,7 @@ bool wxThread::TestDestroy()
 
     if ( m_internal->GetState() == STATE_PAUSED )
     {
 
     if ( m_internal->GetState() == STATE_PAUSED )
     {

-        m_internal->SetReallyPaused(TRUE);
+        m_internal->SetReallyPaused(true);

 
         // leave the crit section or the other threads will stop too if they
         // try to call any of (seemingly harmless) IsXXX() functions while we
 
         // leave the crit section or the other threads will stop too if they
         // try to call any of (seemingly harmless) IsXXX() functions while we


@@ -1530,7 +1617,11 @@ wxThread::~wxThread()
     delete m_internal;
 
     // remove this thread from the global array
     delete m_internal;
 
     // remove this thread from the global array

-    gs_allThreads.Remove(this);
+    {
+        wxMutexLocker lock(*gs_mutexAllThreads);
+
+        gs_allThreads.Remove(this);
+    }

 }
 
 // -----------------------------------------------------------------------------
 }
 
 // -----------------------------------------------------------------------------


@@ -1552,10 +1643,10 @@ bool wxThread::IsAlive() const
     {
         case STATE_RUNNING:
         case STATE_PAUSED:
     {
         case STATE_RUNNING:
         case STATE_PAUSED:

-            return TRUE;
+            return true;

 
         default:
 
         default:

-            return FALSE;
+            return false;

     }
 }
 
     }
 }
 


@@ -1589,18 +1680,20 @@ bool wxThreadModule::OnInit()
     {
         wxLogSysError(rc, _("Thread module initialization failed: failed to create thread key"));
 
     {
         wxLogSysError(rc, _("Thread module initialization failed: failed to create thread key"));
 

-        return FALSE;
+        return false;

     }
 
     gs_tidMain = pthread_self();
 
     }
 
     gs_tidMain = pthread_self();
 

+    gs_mutexAllThreads = new wxMutex();
+

     gs_mutexGui = new wxMutex();
     gs_mutexGui->Lock();
 
     gs_mutexDeleteThread = new wxMutex();
     gs_mutexGui = new wxMutex();
     gs_mutexGui->Lock();
 
     gs_mutexDeleteThread = new wxMutex();

-    gs_condAllDeleted = new wxCondition( *gs_mutexDeleteThread );
+    gs_condAllDeleted = new wxCondition(*gs_mutexDeleteThread);

 
 

-    return TRUE;
+    return true;

 }
 
 void wxThreadModule::OnExit()
 }
 
 void wxThreadModule::OnExit()


@@ -1625,13 +1718,19 @@ void wxThreadModule::OnExit()
         }
     }
 
         }
     }
 

-    // terminate any threads left
-    size_t count = gs_allThreads.GetCount();
-    if ( count != 0u )
+    size_t count;
+

     {
     {

-        wxLogDebug(wxT("%lu threads were not terminated by the application."),
-                   (unsigned long)count);
-    }
+        wxMutexLocker lock(*gs_mutexAllThreads);
+
+        // terminate any threads left
+        count = gs_allThreads.GetCount();
+        if ( count != 0u )
+        {
+            wxLogDebug(wxT("%lu threads were not terminated by the application."),
+                       (unsigned long)count);
+        }
+    } // unlock mutex before deleting the threads as they lock it in their dtor

 
     for ( size_t n = 0u; n < count; n++ )
     {
 
     for ( size_t n = 0u; n < count; n++ )
     {


@@ -1640,6 +1739,8 @@ void wxThreadModule::OnExit()
         gs_allThreads[0]->Delete();
     }
 
         gs_allThreads[0]->Delete();
     }
 

+    delete gs_mutexAllThreads;
+

     // destroy GUI mutex
     gs_mutexGui->Unlock();
     delete gs_mutexGui;
     // destroy GUI mutex
     gs_mutexGui->Unlock();
     delete gs_mutexGui;


@@ -1663,7 +1764,7 @@ static void ScheduleThreadForDeletion()
 
     wxLogTrace(TRACE_THREADS, _T("%lu thread%s waiting to be deleted"),
                (unsigned long)gs_nThreadsBeingDeleted,
 
     wxLogTrace(TRACE_THREADS, _T("%lu thread%s waiting to be deleted"),
                (unsigned long)gs_nThreadsBeingDeleted,

-               gs_nThreadsBeingDeleted == 1 ? "" : "s");
+               gs_nThreadsBeingDeleted == 1 ? _T("") : _T("s"));

 }
 
 static void DeleteThread(wxThread *This)
 }
 
 static void DeleteThread(wxThread *This)


@@ -1706,4 +1807,3 @@ void wxMutexGuiLeave()
 #include "wx/thrimpl.cpp"
 
 #endif // wxUSE_THREADS
 #include "wx/thrimpl.cpp"
 
 #endif // wxUSE_THREADS

-