#include <stdio.h>
-#define INCL_DOS
-#include <os2.h>
-
#include "wx/module.h"
#include "wx/thread.h"
+#define INCL_DOSSEMAPHORES
+#define INCL_DOSPROCESS
+#define INCL_ERRORS
+#include <os2.h>
+#include <bseerr.h>
+
// the possible states of the thread ("=>" shows all possible transitions from
// this state)
enum wxThreadState
// static variables
// ----------------------------------------------------------------------------
-// TLS index of the slot where we store the pointer to the current thread
-static DWORD s_tlsThisThread = 0xFFFFFFFF;
-
// id of the main thread - the one which can call GUI functions without first
// calling wxMutexGuiEnter()
-static DWORD s_idMainThread = 0;
+static ULONG s_ulIdMainThread = 0;
+wxMutex* p_wxMainMutex;
+
+// OS2 substitute for Tls pointer the current parent thread object
+wxThread* m_pThread; // pointer to the wxWindows thread object
// if it's FALSE, some secondary thread is holding the GUI lock
static bool s_bGuiOwnedByMainThread = TRUE;
// critical section which controls access to all GUI functions: any secondary
// thread (i.e. except the main one) must enter this crit section before doing
// any GUI calls
-static wxCriticalSection *s_critsectGui = NULL;
+static wxCriticalSection *s_pCritsectGui = NULL;
// critical section which protects s_nWaitingForGui variable
-static wxCriticalSection *s_critsectWaitingForGui = NULL;
+static wxCriticalSection *s_pCritsectWaitingForGui = NULL;
// number of threads waiting for GUI in wxMutexGuiEnter()
static size_t s_nWaitingForGui = 0;
// are we waiting for a thread termination?
-static bool s_waitingForThread = FALSE;
+static bool s_bWaitingForThread = FALSE;
// ============================================================================
-// Windows implementation of thread classes
+// OS/2 implementation of thread classes
// ============================================================================
// ----------------------------------------------------------------------------
class wxMutexInternal
{
public:
- HANDLE p_mutex;
+ HMTX m_vMutex;
};
wxMutex::wxMutex()
{
+ APIRET ulrc;
+
p_internal = new wxMutexInternal;
-// p_internal->p_mutex = CreateMutex(NULL, FALSE, NULL);
- if ( !p_internal->p_mutex )
+ ulrc = ::DosCreateMutexSem(NULL, &p_internal->m_vMutex, 0L, FALSE);
+ if (ulrc != 0)
{
wxLogSysError(_("Can not create mutex."));
}
-
m_locked = 0;
}
{
if (m_locked > 0)
wxLogDebug(wxT("Warning: freeing a locked mutex (%d locks)."), m_locked);
-// CloseHandle(p_internal->p_mutex);
+ ::DosCloseMutexSem(p_internal->m_vMutex);
+ p_internal->m_vMutex = NULL;
}
wxMutexError wxMutex::Lock()
{
- DWORD ret;
+ APIRET ulrc;
+
+ ulrc = ::DosRequestMutexSem(p_internal->m_vMutex, SEM_INDEFINITE_WAIT);
-// TODO:
-/*
- ret = WaitForSingleObject(p_internal->p_mutex, INFINITE);
- switch ( ret )
+ switch (ulrc)
{
- case WAIT_ABANDONED:
+ case ERROR_TOO_MANY_SEM_REQUESTS:
return wxMUTEX_BUSY;
- case WAIT_OBJECT_0:
+ case NO_ERROR:
// ok
break;
- case WAIT_FAILED:
+ case ERROR_INVALID_HANDLE:
+ case ERROR_INTERRUPT:
+ case ERROR_SEM_OWNER_DIED:
wxLogSysError(_("Couldn't acquire a mutex lock"));
return wxMUTEX_MISC_ERROR;
- case WAIT_TIMEOUT:
+ case ERROR_TIMEOUT:
default:
wxFAIL_MSG(wxT("impossible return value in wxMutex::Lock"));
}
-
m_locked++;
-*/
return wxMUTEX_NO_ERROR;
}
wxMutexError wxMutex::TryLock()
{
- DWORD ret;
+ ULONG ulrc;
-// TODO:
-/*
- ret = WaitForSingleObject(p_internal->p_mutex, 0);
- if (ret == WAIT_TIMEOUT || ret == WAIT_ABANDONED)
+ ulrc = ::DosRequestMutexSem(p_internal->m_vMutex, SEM_IMMEDIATE_RETURN /*0L*/);
+ if (ulrc == ERROR_TIMEOUT || ulrc == ERROR_TOO_MANY_SEM_REQUESTS)
return wxMUTEX_BUSY;
m_locked++;
-*/
return wxMUTEX_NO_ERROR;
}
wxMutexError wxMutex::Unlock()
{
+ APIRET ulrc;
+
if (m_locked > 0)
m_locked--;
- BOOL ret = 0; // TODO: ReleaseMutex(p_internal->p_mutex);
- if ( ret == 0 )
+ ulrc = ::DosReleaseMutexSem(p_internal->m_vMutex);
+ if (ulrc != 0)
{
wxLogSysError(_("Couldn't release a mutex"));
return wxMUTEX_MISC_ERROR;
}
-
return wxMUTEX_NO_ERROR;
}
class wxConditionInternal
{
public:
- HANDLE event;
- int waiters;
+ HEV m_vEvent;
+ int m_nWaiters;
};
wxCondition::wxCondition()
{
+ APIRET ulrc;
+ ULONG ulCount;
+
p_internal = new wxConditionInternal;
-// TODO:
-/*
- p_internal->event = CreateEvent(NULL, FALSE, FALSE, NULL);
- if ( !p_internal->event )
+ ulrc = ::DosCreateEventSem(NULL, &p_internal->m_vEvent, 0L, FALSE);
+ if (ulrc != 0)
{
wxLogSysError(_("Can not create event object."));
}
-*/
- p_internal->waiters = 0;
+ p_internal->m_nWaiters = 0;
+ // ?? just for good measure?
+ ::DosResetEventSem(p_internal->m_vEvent, &ulCount);
}
wxCondition::~wxCondition()
{
-// CloseHandle(p_internal->event);
+ ::DosCloseEventSem(p_internal->m_vEvent);
+ delete p_internal;
+ p_internal = NULL;
}
-void wxCondition::Wait(wxMutex& mutex)
+void wxCondition::Wait(
+ wxMutex& rMutex
+)
{
- mutex.Unlock();
- p_internal->waiters++;
-// WaitForSingleObject(p_internal->event, INFINITE);
- p_internal->waiters--;
- mutex.Lock();
+ rMutex.Unlock();
+ p_internal->m_nWaiters++;
+ ::DosWaitEventSem(p_internal->m_vEvent, SEM_INDEFINITE_WAIT);
+ p_internal->m_nWaiters--;
+ rMutex.Lock();
}
-bool wxCondition::Wait(wxMutex& mutex,
- unsigned long sec,
- unsigned long nsec)
+bool wxCondition::Wait(
+ wxMutex& rMutex
+, unsigned long ulSec
+, unsigned long ulMillisec)
{
- DWORD ret;
+ APIRET ulrc;
- mutex.Unlock();
- p_internal->waiters++;
-// ret = WaitForSingleObject(p_internal->event, (sec*1000)+(nsec/1000000));
- p_internal->waiters--;
- mutex.Lock();
+ rMutex.Unlock();
+ p_internal->m_nWaiters++;
+ ulrc = ::DosWaitEventSem(p_internal->m_vEvent, ULONG((ulSec * 1000L) + ulMillisec));
+ p_internal->m_nWaiters--;
+ rMutex.Lock();
-// return (ret != WAIT_TIMEOUT);
- return FALSE;
+ return (ulrc != ERROR_TIMEOUT);
}
void wxCondition::Signal()
{
-// SetEvent(p_internal->event);
+ ::DosPostEventSem(p_internal->m_vEvent);
}
void wxCondition::Broadcast()
{
- int i;
+ int i;
-// TODO:
-/*
- for (i=0;i<p_internal->waiters;i++)
+ for (i = 0; i < p_internal->m_nWaiters; i++)
{
- if ( SetEvent(p_internal->event) == 0 )
+ if (::DosPostEventSem(p_internal->m_vEvent) != 0)
{
wxLogSysError(_("Couldn't change the state of event object."));
}
}
-*/
}
// ----------------------------------------------------------------------------
// wxCriticalSection implementation
// ----------------------------------------------------------------------------
-#define CRITICAL_SECTION ULONG
+
class wxCriticalSectionInternal
{
public:
// init the critical section object
wxCriticalSectionInternal()
- { //::InitializeCriticalSection(&m_data);
- }
-
- // implicit cast to the associated data
- operator CRITICAL_SECTION *() { return &m_data; }
+ { }
// free the associated ressources
~wxCriticalSectionInternal()
- { //::DeleteCriticalSection(&m_data);
- }
+ { }
private:
- CRITICAL_SECTION m_data;
};
+// ----------------------------------------------------------------------------
+// wxCriticalSection implementation
+// ----------------------------------------------------------------------------
+
wxCriticalSection::wxCriticalSection()
{
m_critsect = new wxCriticalSectionInternal;
void wxCriticalSection::Enter()
{
-//TODO: ::EnterCriticalSection(*m_critsect);
+ ::DosEnterCritSec();
}
void wxCriticalSection::Leave()
{
-// TODO: ::LeaveCriticalSection(*m_critsect);
+ ::DosExitCritSec();
}
// ----------------------------------------------------------------------------
class wxThreadInternal
{
public:
- wxThreadInternal()
+ inline wxThreadInternal()
{
m_hThread = 0;
- m_state = STATE_NEW;
- m_priority = 0; // TODO: WXTHREAD_DEFAULT_PRIORITY;
+ m_eState = STATE_NEW;
+ m_nPriority = 0;
}
// create a new (suspended) thread (for the given thread object)
- bool Create(wxThread *thread);
+ bool Create(wxThread* pThread);
// suspend/resume/terminate
bool Suspend();
bool Resume();
- void Cancel() { m_state = STATE_CANCELED; }
+ inline void Cancel() { m_eState = STATE_CANCELED; }
// thread state
- void SetState(wxThreadState state) { m_state = state; }
- wxThreadState GetState() const { return m_state; }
+ inline void SetState(wxThreadState eState) { m_eState = eState; }
+ inline wxThreadState GetState() const { return m_eState; }
// thread priority
- void SetPriority(unsigned int priority) { m_priority = priority; }
- unsigned int GetPriority() const { return m_priority; }
+ inline void SetPriority(unsigned int nPriority) { m_nPriority = nPriority; }
+ inline unsigned int GetPriority() const { return m_nPriority; }
// thread handle and id
- HANDLE GetHandle() const { return m_hThread; }
- DWORD GetId() const { return m_tid; }
+ inline TID GetHandle() const { return m_hThread; }
+ TID GetId() const { return m_hThread; }
// thread function
static DWORD OS2ThreadStart(wxThread *thread);
private:
- HANDLE m_hThread; // handle of the thread
- wxThreadState m_state; // state, see wxThreadState enum
- unsigned int m_priority; // thread priority in "wx" units
- DWORD m_tid; // thread id
+ // Threads in OS/2 have only an ID, so m_hThread is both it's handle and ID
+ // PM also has no real Tls mechanism to index pointers by so we'll just
+ // keep track of the wxWindows parent object here.
+ TID m_hThread; // handle and ID of the thread
+ wxThreadState m_eState; // state, see wxThreadState enum
+ unsigned int m_nPriority; // thread priority in "wx" units
};
-DWORD wxThreadInternal::OS2ThreadStart(wxThread *thread)
+ULONG wxThreadInternal::OS2ThreadStart(
+ wxThread* pThread
+)
{
- // store the thread object in the TLS
-// TODO:
-/*
- if ( !::TlsSetValue(s_tlsThisThread, thread) )
- {
- wxLogSysError(_("Can not start thread: error writing TLS."));
+ m_pThread = pThread;
- return (DWORD)-1;
- }
-*/
- DWORD ret = (DWORD)thread->Entry();
- thread->p_internal->SetState(STATE_EXITED);
- thread->OnExit();
+ DWORD dwRet = (DWORD)pThread->Entry();
- delete thread;
+ pThread->p_internal->SetState(STATE_EXITED);
+ pThread->OnExit();
- return ret;
+ delete pThread;
+ m_pThread = NULL;
+ return dwRet;
}
-bool wxThreadInternal::Create(wxThread *thread)
+bool wxThreadInternal::Create(
+ wxThread* pThread
+)
{
-// TODO:
-/*
- m_hThread = ::CreateThread
- (
- NULL, // default security
- 0, // default stack size
- (LPTHREAD_START_ROUTINE) // thread entry point
- wxThreadInternal::OS2ThreadStart, //
- (LPVOID)thread, // parameter
- CREATE_SUSPENDED, // flags
- &m_tid // [out] thread id
- );
+ APIRET ulrc;
- if ( m_hThread == NULL )
+ ulrc = ::DosCreateThread( &m_hThread
+ ,(PFNTHREAD)wxThreadInternal::OS2ThreadStart
+ ,(ULONG)pThread
+ ,CREATE_SUSPENDED | STACK_SPARSE
+ ,8192L
+ );
+ if(ulrc != 0)
{
wxLogSysError(_("Can't create thread"));
return FALSE;
}
- // translate wxWindows priority to the Windows one
- int win_priority;
- if (m_priority <= 20)
- win_priority = THREAD_PRIORITY_LOWEST;
- else if (m_priority <= 40)
- win_priority = THREAD_PRIORITY_BELOW_NORMAL;
- else if (m_priority <= 60)
- win_priority = THREAD_PRIORITY_NORMAL;
- else if (m_priority <= 80)
- win_priority = THREAD_PRIORITY_ABOVE_NORMAL;
- else if (m_priority <= 100)
- win_priority = THREAD_PRIORITY_HIGHEST;
+ // translate wxWindows priority to the PM one
+ ULONG ulOS2_Priority;
+
+ if (m_nPriority <= 20)
+ ulOS2_Priority = PRTYC_NOCHANGE;
+ else if (m_nPriority <= 40)
+ ulOS2_Priority = PRTYC_IDLETIME;
+ else if (m_nPriority <= 60)
+ ulOS2_Priority = PRTYC_REGULAR;
+ else if (m_nPriority <= 80)
+ ulOS2_Priority = PRTYC_TIMECRITICAL;
+ else if (m_nPriority <= 100)
+ ulOS2_Priority = PRTYC_FOREGROUNDSERVER;
else
{
wxFAIL_MSG(wxT("invalid value of thread priority parameter"));
- win_priority = THREAD_PRIORITY_NORMAL;
+ ulOS2_Priority = PRTYC_REGULAR;
}
-
- if ( ::SetThreadPriority(m_hThread, win_priority) == 0 )
+ ulrc = ::DosSetPriority( PRTYS_THREAD
+ ,ulOS2_Priority
+ ,0
+ ,(ULONG)m_hThread
+ );
+ if (ulrc != 0)
{
wxLogSysError(_("Can't set thread priority"));
}
-*/
- return FALSE;
+ return TRUE;
}
bool wxThreadInternal::Suspend()
{
-// TODO:
-/*
- DWORD nSuspendCount = ::SuspendThread(m_hThread);
- if ( nSuspendCount == (DWORD)-1 )
- {
- wxLogSysError(_("Can not suspend thread %x"), m_hThread);
+ ULONG ulrc = ::DosSuspendThread(m_hThread);
+ if (ulrc != 0)
+ {
+ wxLogSysError(_("Can not suspend thread %lu"), m_hThread);
return FALSE;
}
-
- m_state = STATE_PAUSED;
-*/
- return FALSE;
+ m_eState = STATE_PAUSED;
+ return TRUE;
}
bool wxThreadInternal::Resume()
{
-// TODO:
-/*
- DWORD nSuspendCount = ::ResumeThread(m_hThread);
- if ( nSuspendCount == (DWORD)-1 )
- {
- wxLogSysError(_("Can not resume thread %x"), m_hThread);
+ ULONG ulrc = ::DosResumeThread(m_hThread);
+ if (ulrc != 0)
+ {
+ wxLogSysError(_("Can not suspend thread %lu"), m_hThread);
return FALSE;
}
-
- m_state = STATE_RUNNING;
-*/
- return FALSE;
+ m_eState = STATE_PAUSED;
+ return TRUE;
}
// static functions
wxThread *wxThread::This()
{
- wxThread *thread = NULL; // TODO (wxThread *)::TlsGetValue(s_tlsThisThread);
-
-// TODO:
-/*
- // be careful, 0 may be a valid return value as well
- if ( !thread && (::GetLastError() != NO_ERROR) )
- {
- wxLogSysError(_("Couldn't get the current thread pointer"));
-
- // return NULL...
- }
-*/
- return thread;
+ wxThread* pThread = m_pThread;
+ return pThread;
}
bool wxThread::IsMain()
{
-// TODO: return ::GetCurrentThreadId() == s_idMainThread;
+ PTIB ptib;
+ PPIB ppib;
+
+ ::DosGetInfoBlocks(&ptib, &ppib);
+
+ if (ptib->tib_ptib2->tib2_ultid == s_ulIdMainThread)
+ return TRUE;
return FALSE;
}
void wxThread::Yield()
{
- // 0 argument to Sleep() is special
::DosSleep(0);
}
-void wxThread::Sleep(unsigned long milliseconds)
+void wxThread::Sleep(
+ unsigned long ulMilliseconds
+)
{
- ::DosSleep(milliseconds);
+ ::DosSleep(ulMilliseconds);
}
// create/start thread
wxThreadError wxThread::Run()
{
- wxCriticalSectionLocker lock(m_critsect);
+ wxCriticalSectionLocker lock((wxCriticalSection &)m_critsect);
if ( p_internal->GetState() != STATE_NEW )
{
// actually, it may be almost any state at all, not only STATE_RUNNING
return wxTHREAD_RUNNING;
}
-
return Resume();
}
wxThreadError wxThread::Pause()
{
- wxCriticalSectionLocker lock(m_critsect);
+ wxCriticalSectionLocker lock((wxCriticalSection &)m_critsect);
return p_internal->Suspend() ? wxTHREAD_NO_ERROR : wxTHREAD_MISC_ERROR;
}
wxThreadError wxThread::Resume()
{
- wxCriticalSectionLocker lock(m_critsect);
+ wxCriticalSectionLocker lock((wxCriticalSection &)m_critsect);
return p_internal->Resume() ? wxTHREAD_NO_ERROR : wxTHREAD_MISC_ERROR;
}
wxThread::ExitCode wxThread::Delete()
{
- ExitCode rc = 0;
+ ExitCode rc = 0;
+ ULONG ulrc;
// Delete() is always safe to call, so consider all possible states
- if ( IsPaused() )
+ if (IsPaused())
Resume();
- if ( IsRunning() )
+ if (IsRunning())
{
- if ( IsMain() )
+ if (IsMain())
{
// set flag for wxIsWaitingForThread()
- s_waitingForThread = TRUE;
-
+ s_bWaitingForThread = TRUE;
wxBeginBusyCursor();
}
- HANDLE hThread;
+ TID hThread;
+
{
- wxCriticalSectionLocker lock(m_critsect);
+ wxCriticalSectionLocker lock((wxCriticalSection &)m_critsect);
p_internal->Cancel();
hThread = p_internal->GetHandle();
// we can't just wait for the thread to terminate because it might be
// calling some GUI functions and so it will never terminate before we
// process the Windows messages that result from these functions
- DWORD result;
-// TODO:
-/*
+
do
{
- result = ::MsgWaitForMultipleObjects
- (
- 1, // number of objects to wait for
- &hThread, // the objects
- FALSE, // don't wait for all objects
- INFINITE, // no timeout
- QS_ALLEVENTS // return as soon as there are any events
- );
-
- switch ( result )
+ ulrc = ::DosWaitThread( &hThread
+ ,DCWW_NOWAIT
+ );
+ switch (ulrc)
{
- case 0xFFFFFFFF:
+ case ERROR_INTERRUPT:
+ case ERROR_INVALID_THREADID:
// error
wxLogSysError(_("Can not wait for thread termination"));
Kill();
return (ExitCode)-1;
- case WAIT_OBJECT_0:
+ case 0:
// thread we're waiting for terminated
break;
- case WAIT_OBJECT_0 + 1:
+ case ERROR_THREAD_NOT_TERMINATED:
// new message arrived, process it
- if ( !wxTheApp->DoMessage() )
+ if (!wxTheApp->DoMessage())
{
// WM_QUIT received: kill the thread
Kill();
-
return (ExitCode)-1;
}
-
- if ( IsMain() )
+ if (IsMain())
{
// give the thread we're waiting for chance to exit
// from the GUI call it might have been in
- if ( (s_nWaitingForGui > 0) && wxGuiOwnedByMainThread() )
+ if ((s_nWaitingForGui > 0) && wxGuiOwnedByMainThread())
{
wxMutexGuiLeave();
}
}
-
break;
default:
- wxFAIL_MSG(wxT("unexpected result of MsgWaitForMultipleObject"));
+ wxFAIL_MSG(wxT("unexpected result of DosWatiThread"));
}
- } while ( result != WAIT_OBJECT_0 );
-*/
- if ( IsMain() )
- {
- s_waitingForThread = FALSE;
-
- wxEndBusyCursor();
- }
+ } while (ulrc != 0);
-// TODO:
-/*
- if ( !::GetExitCodeThread(hThread, (LPDWORD)&rc) )
+ if (IsMain())
{
- wxLogLastError("GetExitCodeThread");
-
- rc = (ExitCode)-1;
+ s_bWaitingForThread = FALSE;
+ wxEndBusyCursor();
}
- wxASSERT_MSG( (LPVOID)rc != (LPVOID)STILL_ACTIVE,
- wxT("thread must be already terminated.") );
-
- ::CloseHandle(hThread);
-*/
+ ::DosExit(EXIT_THREAD, ulrc);
}
-
+ rc = (ExitCode)ulrc;
return rc;
}
wxThreadError wxThread::Kill()
{
- if ( !IsRunning() )
+ if (!IsRunning())
return wxTHREAD_NOT_RUNNING;
-// TODO:
-/*
- if ( !::TerminateThread(p_internal->GetHandle(), (DWORD)-1) )
- {
- wxLogSysError(_("Couldn't terminate thread"));
-
- return wxTHREAD_MISC_ERROR;
- }
-*/
+ ::DosKillThread(p_internal->GetHandle());
delete this;
-
return wxTHREAD_NO_ERROR;
}
-void wxThread::Exit(void *status)
+void wxThread::Exit(
+ void* pStatus
+)
{
delete this;
-
-// TODO: ::ExitThread((DWORD)status);
-
- wxFAIL_MSG(wxT("Couldn't return from ExitThread()!"));
+ ::DosExit(EXIT_THREAD, ULONG(pStatus));
+ wxFAIL_MSG(wxT("Couldn't return from DosExit()!"));
}
-void wxThread::SetPriority(unsigned int prio)
+void wxThread::SetPriority(
+ unsigned int nPrio
+)
{
- wxCriticalSectionLocker lock(m_critsect);
+ wxCriticalSectionLocker lock((wxCriticalSection &)m_critsect);
- p_internal->SetPriority(prio);
+ p_internal->SetPriority(nPrio);
}
unsigned int wxThread::GetPriority() const
{
- wxCriticalSectionLocker lock((wxCriticalSection &)m_critsect);
+ wxCriticalSectionLocker lock((wxCriticalSection &)m_critsect);
return p_internal->GetPriority();
}
unsigned long wxThread::GetID() const
{
- wxCriticalSectionLocker lock((wxCriticalSection &)m_critsect);
+ wxCriticalSectionLocker lock((wxCriticalSection &)m_critsect);
return (unsigned long)p_internal->GetId();
}
bool wxThread::IsRunning() const
{
- wxCriticalSectionLocker lock((wxCriticalSection &)m_critsect);
+ wxCriticalSectionLocker lock((wxCriticalSection &)m_critsect);
return p_internal->GetState() == STATE_RUNNING;
}
bool wxThread::IsAlive() const
{
- wxCriticalSectionLocker lock((wxCriticalSection &)m_critsect);
+ wxCriticalSectionLocker lock((wxCriticalSection &)m_critsect);
return (p_internal->GetState() == STATE_RUNNING) ||
(p_internal->GetState() == STATE_PAUSED);
bool wxThread::IsPaused() const
{
- wxCriticalSectionLocker lock((wxCriticalSection &)m_critsect);
+ wxCriticalSectionLocker lock((wxCriticalSection &)m_critsect);
return (p_internal->GetState() == STATE_PAUSED);
}
bool wxThread::TestDestroy()
{
- wxCriticalSectionLocker lock((wxCriticalSection &)m_critsect);
+ wxCriticalSectionLocker lock((wxCriticalSection &)m_critsect);
return p_internal->GetState() == STATE_CANCELED;
}
bool wxThreadModule::OnInit()
{
- // allocate TLS index for storing the pointer to the current thread
-// TODO:
-/*
- s_tlsThisThread = ::TlsAlloc();
- if ( s_tlsThisThread == 0xFFFFFFFF )
- {
- // in normal circumstances it will only happen if all other
- // TLS_MINIMUM_AVAILABLE (>= 64) indices are already taken - in other
- // words, this should never happen
- wxLogSysError(_("Thread module initialization failed: "
- "impossible to allocate index in thread "
- "local storage"));
+ s_pCritsectWaitingForGui = new wxCriticalSection();
- return FALSE;
- }
-*/
- // main thread doesn't have associated wxThread object, so store 0 in the
- // TLS instead
+ s_pCritsectGui = new wxCriticalSection();
+ s_pCritsectGui->Enter();
-// TODO:
-/*
- if ( !::TlsSetValue(s_tlsThisThread, (LPVOID)0) )
- {
- ::TlsFree(s_tlsThisThread);
- s_tlsThisThread = 0xFFFFFFFF;
+ PTIB ptib;
+ PPIB ppib;
- wxLogSysError(_("Thread module initialization failed: "
- "can not store value in thread local storage"));
-
- return FALSE;
- }
-*/
- s_critsectWaitingForGui = new wxCriticalSection();
-
- s_critsectGui = new wxCriticalSection();
- s_critsectGui->Enter();
-
- // no error return for GetCurrentThreadId()
-// s_idMainThread = ::GetCurrentThreadId();
+ ::DosGetInfoBlocks(&ptib, &ppib);
+ s_ulIdMainThread = ptib->tib_ptib2->tib2_ultid;
return TRUE;
}
void wxThreadModule::OnExit()
{
-// TODO:
-/*
- if ( !::TlsFree(s_tlsThisThread) )
+ if (s_pCritsectGui)
{
- wxLogLastError("TlsFree failed.");
- }
-*/
- if ( s_critsectGui )
- {
- s_critsectGui->Leave();
- delete s_critsectGui;
- s_critsectGui = NULL;
+ s_pCritsectGui->Leave();
+ delete s_pCritsectGui;
+ s_pCritsectGui = NULL;
}
- wxDELETE(s_critsectWaitingForGui);
+ wxDELETE(s_pCritsectWaitingForGui);
}
// ----------------------------------------------------------------------------
-// under Windows, these functions are implemented usign a critical section and
-// not a mutex, so the names are a bit confusing
+// Helper functions
// ----------------------------------------------------------------------------
-void WXDLLEXPORT wxMutexGuiEnter()
+// Does nothing under OS/2 [for now]
+void WXDLLEXPORT wxWakeUpMainThread()
{
- // this would dead lock everything...
- wxASSERT_MSG( !wxThread::IsMain(),
- wxT("main thread doesn't want to block in wxMutexGuiEnter()!") );
-
- // the order in which we enter the critical sections here is crucial!!
-
- // set the flag telling to the main thread that we want to do some GUI
- {
- wxCriticalSectionLocker enter(*s_critsectWaitingForGui);
-
- s_nWaitingForGui++;
- }
-
- wxWakeUpMainThread();
-
- // now we may block here because the main thread will soon let us in
- // (during the next iteration of OnIdle())
- s_critsectGui->Enter();
}
void WXDLLEXPORT wxMutexGuiLeave()
{
- wxCriticalSectionLocker enter(*s_critsectWaitingForGui);
+ wxCriticalSectionLocker enter(*s_pCritsectWaitingForGui);
if ( wxThread::IsMain() )
{
wxWakeUpMainThread();
}
- s_critsectGui->Leave();
+ s_pCritsectGui->Leave();
}
void WXDLLEXPORT wxMutexGuiLeaveOrEnter()
wxASSERT_MSG( wxThread::IsMain(),
wxT("only main thread may call wxMutexGuiLeaveOrEnter()!") );
- wxCriticalSectionLocker enter(*s_critsectWaitingForGui);
+ wxCriticalSectionLocker enter(*s_pCritsectWaitingForGui);
if ( s_nWaitingForGui == 0 )
{
// no threads are waiting for GUI - so we may acquire the lock without
// any danger (but only if we don't already have it)
- if ( !wxGuiOwnedByMainThread() )
+ if (!wxGuiOwnedByMainThread())
{
- s_critsectGui->Enter();
+ s_pCritsectGui->Enter();
s_bGuiOwnedByMainThread = TRUE;
}
else
{
// some threads are waiting, release the GUI lock if we have it
- if ( wxGuiOwnedByMainThread() )
+ if (wxGuiOwnedByMainThread())
{
wxMutexGuiLeave();
}
return s_bGuiOwnedByMainThread;
}
-// wake up the main thread if it's in ::GetMessage()
-void WXDLLEXPORT wxWakeUpMainThread()
-{
- // sending any message would do - hopefully WM_NULL is harmless enough
-// TODO:
-/*
- if ( !::PostThreadMessage(s_idMainThread, WM_NULL, 0, 0) )
- {
- // should never happen
- wxLogLastError("PostThreadMessage(WM_NULL)");
- }
-*/
-}
-
-bool WXDLLEXPORT wxIsWaitingForThread()
-{
- return s_waitingForThread;
-}
-
-
#endif
// wxUSE_THREADS
projects / wxWidgets.git / blobdiff