#define _MT
#endif
-#ifdef __VISUALC__
+#if defined(__VISUALC__) || (defined(__BORLANDC__) && (__BORLANDC__ >= 0x500))
+
+#if defined(__BORLANDC__) && !defined(__MT__)
+// I can't set -tWM in the IDE (anyone?) so have to do this
+#define __MT__
+#endif
+
+#if defined(__BORLANDC__) && !defined(__MFC_COMPAT__)
+// Needed to know about _beginthreadex etc..
+#define __MFC_COMPAT__
+#endif
+
+
#include <process.h>
#endif
class wxMutexInternal
{
public:
- HANDLE p_mutex;
+ wxMutexInternal()
+ {
+ m_mutex = ::CreateMutex(NULL, FALSE, NULL);
+ if ( !m_mutex )
+ {
+ wxLogSysError(_("Can not create mutex"));
+ }
+ }
+
+ ~wxMutexInternal() { if ( m_mutex ) CloseHandle(m_mutex); }
+
+public:
+ HANDLE m_mutex;
};
wxMutex::wxMutex()
{
- p_internal = new wxMutexInternal;
- p_internal->p_mutex = CreateMutex(NULL, FALSE, NULL);
- if ( !p_internal->p_mutex )
- {
- wxLogSysError(_("Can not create mutex."));
- }
+ m_internal = new wxMutexInternal;
m_locked = 0;
}
wxMutex::~wxMutex()
{
- if (m_locked > 0)
- wxLogDebug(wxT("Warning: freeing a locked mutex (%d locks)."), m_locked);
- CloseHandle(p_internal->p_mutex);
+ if ( m_locked > 0 )
+ {
+ wxLogDebug(_T("Warning: freeing a locked mutex (%d locks)."), m_locked);
+ }
+
+ delete m_internal;
}
wxMutexError wxMutex::Lock()
{
DWORD ret;
- ret = WaitForSingleObject(p_internal->p_mutex, INFINITE);
+ ret = WaitForSingleObject(m_internal->m_mutex, INFINITE);
switch ( ret )
{
case WAIT_ABANDONED:
{
DWORD ret;
- ret = WaitForSingleObject(p_internal->p_mutex, 0);
+ ret = WaitForSingleObject(m_internal->m_mutex, 0);
if (ret == WAIT_TIMEOUT || ret == WAIT_ABANDONED)
return wxMUTEX_BUSY;
if (m_locked > 0)
m_locked--;
- BOOL ret = ReleaseMutex(p_internal->p_mutex);
+ BOOL ret = ReleaseMutex(m_internal->m_mutex);
if ( ret == 0 )
{
wxLogSysError(_("Couldn't release a mutex"));
waiters = 0;
}
- bool Wait(wxMutex& mutex, DWORD timeout)
+ bool Wait(DWORD timeout)
{
- mutex.Unlock();
waiters++;
// FIXME this should be MsgWaitForMultipleObjects() as well probably
DWORD rc = ::WaitForSingleObject(event, timeout);
waiters--;
- mutex.Lock();
return rc != WAIT_TIMEOUT;
}
wxCondition::wxCondition()
{
- p_internal = new wxConditionInternal;
+ m_internal = new wxConditionInternal;
}
wxCondition::~wxCondition()
{
- delete p_internal;
+ delete m_internal;
}
-void wxCondition::Wait(wxMutex& mutex)
+void wxCondition::Wait()
{
- (void)p_internal->Wait(mutex, INFINITE);
+ (void)m_internal->Wait(INFINITE);
}
-bool wxCondition::Wait(wxMutex& mutex,
- unsigned long sec,
+bool wxCondition::Wait(unsigned long sec,
unsigned long nsec)
{
- return p_internal->Wait(mutex, sec*1000 + nsec/1000000);
+ return m_internal->Wait(sec*1000 + nsec/1000000);
}
void wxCondition::Signal()
// someone waits on it. In any case, the system will return it to a non
// signalled state afterwards. If multiple threads are waiting, only one
// will be woken up.
- if ( !::SetEvent(p_internal->event) )
+ if ( !::SetEvent(m_internal->event) )
{
wxLogLastError("SetEvent");
}
// this works because all these threads are already waiting and so each
// SetEvent() inside Signal() is really a PulseEvent() because the event
// state is immediately returned to non-signaled
- for ( int i = 0; i < p_internal->waiters; i++ )
+ for ( int i = 0; i < m_internal->waiters; i++ )
{
Signal();
}
DWORD wxThreadInternal::WinThreadStart(wxThread *thread)
{
+ // first of all, check whether we hadn't been cancelled already
+ if ( thread->m_internal->GetState() == STATE_EXITED )
+ {
+ return (DWORD)-1;
+ }
+
// store the thread object in the TLS
if ( !::TlsSetValue(gs_tlsThisThread, thread) )
{
// enter m_critsect before changing the thread state
thread->m_critsect.Enter();
- bool wasCancelled = thread->p_internal->GetState() == STATE_CANCELED;
- thread->p_internal->SetState(STATE_EXITED);
+ bool wasCancelled = thread->m_internal->GetState() == STATE_CANCELED;
+ thread->m_internal->SetState(STATE_EXITED);
thread->m_critsect.Leave();
thread->OnExit();
// for compilers which have it, we should use C RTL function for thread
// creation instead of Win32 API one because otherwise we will have memory
// leaks if the thread uses C RTL (and most threads do)
-#ifdef __VISUALC__
+#if defined(__VISUALC__) || (defined(__BORLANDC__) && (__BORLANDC__ >= 0x500))
typedef unsigned (__stdcall *RtlThreadStart)(void *);
m_hThread = (HANDLE)_beginthreadex(NULL, 0,
- (RtlThreadStart)
+ (RtlThreadStart)
wxThreadInternal::WinThreadStart,
thread, CREATE_SUSPENDED,
(unsigned int *)&m_tid);
return ::GetCurrentThreadId() == gs_idMainThread;
}
+#ifdef Yield
+#undef Yield
+#endif
+
void wxThread::Yield()
{
// 0 argument to Sleep() is special and means to just give away the rest of
::Sleep(milliseconds);
}
+int wxThread::GetCPUCount()
+{
+ SYSTEM_INFO si;
+ GetSystemInfo(&si);
+
+ return si.dwNumberOfProcessors;
+}
+
+bool wxThread::SetConcurrency(size_t level)
+{
+ wxASSERT_MSG( IsMain(), _T("should only be called from the main thread") );
+
+ // ok only for the default one
+ if ( level == 0 )
+ return 0;
+
+ // get system affinity mask first
+ HANDLE hProcess = ::GetCurrentProcess();
+ DWORD dwProcMask, dwSysMask;
+ if ( ::GetProcessAffinityMask(hProcess, &dwProcMask, &dwSysMask) == 0 )
+ {
+ wxLogLastError(_T("GetProcessAffinityMask"));
+
+ return FALSE;
+ }
+
+ // how many CPUs have we got?
+ if ( dwSysMask == 1 )
+ {
+ // don't bother with all this complicated stuff - on a single
+ // processor system it doesn't make much sense anyhow
+ return level == 1;
+ }
+
+ // calculate the process mask: it's a bit vector with one bit per
+ // processor; we want to schedule the process to run on first level
+ // CPUs
+ DWORD bit = 1;
+ while ( bit )
+ {
+ if ( dwSysMask & bit )
+ {
+ // ok, we can set this bit
+ dwProcMask |= bit;
+
+ // another process added
+ if ( !--level )
+ {
+ // and that's enough
+ break;
+ }
+ }
+
+ // next bit
+ bit <<= 1;
+ }
+
+ // could we set all bits?
+ if ( level != 0 )
+ {
+ wxLogDebug(_T("bad level %u in wxThread::SetConcurrency()"), level);
+
+ return FALSE;
+ }
+
+ // set it: we can't link to SetProcessAffinityMask() because it doesn't
+ // exist in Win9x, use RT binding instead
+
+ typedef BOOL (*SETPROCESSAFFINITYMASK)(HANDLE, DWORD);
+
+ // can use static var because we're always in the main thread here
+ static SETPROCESSAFFINITYMASK pfnSetProcessAffinityMask = NULL;
+
+ if ( !pfnSetProcessAffinityMask )
+ {
+ HMODULE hModKernel = ::LoadLibrary(_T("kernel32"));
+ if ( hModKernel )
+ {
+ pfnSetProcessAffinityMask = (SETPROCESSAFFINITYMASK)
+ ::GetProcAddress(hModKernel,
+#if defined(__BORLANDC__) && (__BORLANDC__ <= 0x520)
+ "SetProcessAffinityMask");
+#else
+ _T("SetProcessAffinityMask"));
+#endif
+ }
+
+ // we've discovered a MT version of Win9x!
+ wxASSERT_MSG( pfnSetProcessAffinityMask,
+ _T("this system has several CPUs but no "
+ "SetProcessAffinityMask function?") );
+ }
+
+ if ( !pfnSetProcessAffinityMask )
+ {
+ // msg given above - do it only once
+ return FALSE;
+ }
+
+ if ( pfnSetProcessAffinityMask(hProcess, dwProcMask) == 0 )
+ {
+ wxLogLastError(_T("SetProcessAffinityMask"));
+
+ return FALSE;
+ }
+
+ return TRUE;
+}
+
// ctor and dtor
// -------------
wxThread::wxThread(wxThreadKind kind)
{
- p_internal = new wxThreadInternal();
+ m_internal = new wxThreadInternal();
m_isDetached = kind == wxTHREAD_DETACHED;
}
wxThread::~wxThread()
{
- delete p_internal;
+ delete m_internal;
}
// create/start thread
{
wxCriticalSectionLocker lock(m_critsect);
- if ( !p_internal->Create(this) )
+ if ( !m_internal->Create(this) )
return wxTHREAD_NO_RESOURCE;
return wxTHREAD_NO_ERROR;
{
wxCriticalSectionLocker lock(m_critsect);
- if ( p_internal->GetState() != STATE_NEW )
+ if ( m_internal->GetState() != STATE_NEW )
{
// actually, it may be almost any state at all, not only STATE_RUNNING
return wxTHREAD_RUNNING;
{
wxCriticalSectionLocker lock(m_critsect);
- return p_internal->Suspend() ? wxTHREAD_NO_ERROR : wxTHREAD_MISC_ERROR;
+ return m_internal->Suspend() ? wxTHREAD_NO_ERROR : wxTHREAD_MISC_ERROR;
}
wxThreadError wxThread::Resume()
{
wxCriticalSectionLocker lock(m_critsect);
- return p_internal->Resume() ? wxTHREAD_NO_ERROR : wxTHREAD_MISC_ERROR;
+ return m_internal->Resume() ? wxTHREAD_NO_ERROR : wxTHREAD_MISC_ERROR;
}
// stopping thread
(void)Delete(&rc);
- p_internal->Free();
+ m_internal->Free();
return rc;
}
ExitCode rc = 0;
// Delete() is always safe to call, so consider all possible states
- if ( IsPaused() )
+
+ // has the thread started to run?
+ bool shouldResume = FALSE;
+
+ {
+ wxCriticalSectionLocker lock(m_critsect);
+
+ if ( m_internal->GetState() == STATE_NEW )
+ {
+ // WinThreadStart() will see it and terminate immediately
+ m_internal->SetState(STATE_EXITED);
+
+ shouldResume = TRUE;
+ }
+ }
+
+ // is the thread paused?
+ if ( shouldResume || IsPaused() )
Resume();
- HANDLE hThread = p_internal->GetHandle();
+ HANDLE hThread = m_internal->GetHandle();
+ // does is still run?
if ( IsRunning() )
{
if ( IsMain() )
{
wxCriticalSectionLocker lock(m_critsect);
- p_internal->Cancel();
+ m_internal->Cancel();
}
#if wxUSE_GUI
if ( !IsRunning() )
return wxTHREAD_NOT_RUNNING;
- if ( !::TerminateThread(p_internal->GetHandle(), (DWORD)-1) )
+ if ( !::TerminateThread(m_internal->GetHandle(), (DWORD)-1) )
{
wxLogSysError(_("Couldn't terminate thread"));
return wxTHREAD_MISC_ERROR;
}
- p_internal->Free();
+ m_internal->Free();
if ( IsDetached() )
{
void wxThread::Exit(ExitCode status)
{
- p_internal->Free();
+ m_internal->Free();
if ( IsDetached() )
{
delete this;
}
-#ifdef __VISUALC__
+#if defined(__VISUALC__) || (defined(__BORLANDC__) && (__BORLANDC__ >= 0x500))
_endthreadex((unsigned)status);
#else // !VC++
::ExitThread((DWORD)status);
{
wxCriticalSectionLocker lock(m_critsect);
- p_internal->SetPriority(prio);
+ m_internal->SetPriority(prio);
}
unsigned int wxThread::GetPriority() const
{
wxCriticalSectionLocker lock((wxCriticalSection &)m_critsect); // const_cast
- return p_internal->GetPriority();
+ return m_internal->GetPriority();
}
unsigned long wxThread::GetId() const
{
wxCriticalSectionLocker lock((wxCriticalSection &)m_critsect); // const_cast
- return (unsigned long)p_internal->GetId();
+ return (unsigned long)m_internal->GetId();
}
bool wxThread::IsRunning() const
{
wxCriticalSectionLocker lock((wxCriticalSection &)m_critsect); // const_cast
- return p_internal->GetState() == STATE_RUNNING;
+ return m_internal->GetState() == STATE_RUNNING;
}
bool wxThread::IsAlive() const
{
wxCriticalSectionLocker lock((wxCriticalSection &)m_critsect); // const_cast
- return (p_internal->GetState() == STATE_RUNNING) ||
- (p_internal->GetState() == STATE_PAUSED);
+ return (m_internal->GetState() == STATE_RUNNING) ||
+ (m_internal->GetState() == STATE_PAUSED);
}
bool wxThread::IsPaused() const
{
wxCriticalSectionLocker lock((wxCriticalSection &)m_critsect); // const_cast
- return p_internal->GetState() == STATE_PAUSED;
+ return m_internal->GetState() == STATE_PAUSED;
}
bool wxThread::TestDestroy()
{
wxCriticalSectionLocker lock((wxCriticalSection &)m_critsect); // const_cast
- return p_internal->GetState() == STATE_CANCELED;
+ return m_internal->GetState() == STATE_CANCELED;
}
// ----------------------------------------------------------------------------
projects / wxWidgets.git / blobdiff