///////////////////////////////////////////////////////////////////////////////
-// Name: x11/evtloop.cpp
+// Name: src/x11/evtloop.cpp
// Purpose: implements wxEventLoop for X11
// Author: Julian Smart
// Modified by:
// headers
// ----------------------------------------------------------------------------
-#ifdef __GNUG__
- #pragma implementation "evtloop.h"
-#endif
+// for compilers that support precompilation, includes "wx.h".
+#include "wx/wxprec.h"
-#include "wx/window.h"
-#include "wx/app.h"
#include "wx/evtloop.h"
-#include "wx/tooltip.h"
-#if wxUSE_THREADS
-#include "wx/thread.h"
+
+#ifndef WX_PRECOMP
+ #include "wx/hash.h"
+ #include "wx/app.h"
+ #include "wx/window.h"
+ #include "wx/timer.h"
+ #include "wx/module.h"
#endif
-#include "wx/timer.h"
+
+#include "wx/tooltip.h"
+#include "wx/unix/private.h"
#include "wx/x11/private.h"
#include "X11/Xlib.h"
+#if wxUSE_THREADS
+ #include "wx/thread.h"
+#endif
+
+#include <sys/time.h>
+#include <unistd.h>
+
+#ifdef HAVE_SYS_SELECT_H
+# include <sys/select.h>
+#endif
+
+#if wxUSE_SOCKETS
+// ----------------------------------------------------------------------------
+// wxSocketTable
+// ----------------------------------------------------------------------------
+
+typedef void (*wxSocketCallback) (int fd, void* data);
+
+class wxSocketTableEntry: public wxObject
+{
+ public:
+ wxSocketTableEntry()
+ {
+ m_fdInput = -1; m_fdOutput = -1;
+ m_callbackInput = NULL; m_callbackOutput = NULL;
+ m_dataInput = NULL; m_dataOutput = NULL;
+ }
+
+ int m_fdInput;
+ int m_fdOutput;
+ wxSocketCallback m_callbackInput;
+ wxSocketCallback m_callbackOutput;
+ void* m_dataInput;
+ void* m_dataOutput;
+};
+
+typedef enum
+{ wxSocketTableInput, wxSocketTableOutput } wxSocketTableType ;
+
+class wxSocketTable: public wxHashTable
+{
+ public:
+ wxSocketTable(): wxHashTable(wxKEY_INTEGER)
+ {
+ }
+ virtual ~wxSocketTable()
+ {
+ WX_CLEAR_HASH_TABLE(*this)
+ }
+
+ wxSocketTableEntry* FindEntry(int fd);
+
+ void RegisterCallback(int fd, wxSocketTableType socketType, wxSocketCallback callback, void* data);
+
+ void UnregisterCallback(int fd, wxSocketTableType socketType);
+
+ bool CallCallback(int fd, wxSocketTableType socketType);
+
+ void FillSets(fd_set* readset, fd_set* writeset, int* highest);
+
+ void ProcessEvents(fd_set* readset, fd_set* writeset);
+};
+
+wxSocketTableEntry* wxSocketTable::FindEntry(int fd)
+{
+ wxSocketTableEntry* entry = (wxSocketTableEntry*) Get(fd);
+ return entry;
+}
+
+void wxSocketTable::RegisterCallback(int fd, wxSocketTableType socketType, wxSocketCallback callback, void* data)
+{
+ wxSocketTableEntry* entry = FindEntry(fd);
+ if (!entry)
+ {
+ entry = new wxSocketTableEntry();
+ Put(fd, entry);
+ }
+
+ if (socketType == wxSocketTableInput)
+ {
+ entry->m_fdInput = fd;
+ entry->m_dataInput = data;
+ entry->m_callbackInput = callback;
+ }
+ else
+ {
+ entry->m_fdOutput = fd;
+ entry->m_dataOutput = data;
+ entry->m_callbackOutput = callback;
+ }
+}
+
+void wxSocketTable::UnregisterCallback(int fd, wxSocketTableType socketType)
+{
+ wxSocketTableEntry* entry = FindEntry(fd);
+ if (entry)
+ {
+ if (socketType == wxSocketTableInput)
+ {
+ entry->m_fdInput = -1;
+ entry->m_dataInput = NULL;
+ entry->m_callbackInput = NULL;
+ }
+ else
+ {
+ entry->m_fdOutput = -1;
+ entry->m_dataOutput = NULL;
+ entry->m_callbackOutput = NULL;
+ }
+ if (entry->m_fdInput == -1 && entry->m_fdOutput == -1)
+ {
+ Delete(fd);
+ delete entry;
+ }
+ }
+}
+
+bool wxSocketTable::CallCallback(int fd, wxSocketTableType socketType)
+{
+ wxSocketTableEntry* entry = FindEntry(fd);
+ if (entry)
+ {
+ if (socketType == wxSocketTableInput)
+ {
+ if (entry->m_fdInput != -1 && entry->m_callbackInput)
+ {
+ (entry->m_callbackInput) (entry->m_fdInput, entry->m_dataInput);
+ }
+ }
+ else
+ {
+ if (entry->m_fdOutput != -1 && entry->m_callbackOutput)
+ {
+ (entry->m_callbackOutput) (entry->m_fdOutput, entry->m_dataOutput);
+ }
+ }
+ return true;
+ }
+ else
+ return false;
+}
+
+void wxSocketTable::FillSets(fd_set* readset, fd_set* writeset, int* highest)
+{
+ BeginFind();
+ wxHashTable::compatibility_iterator node = Next();
+ while (node)
+ {
+ wxSocketTableEntry* entry = (wxSocketTableEntry*) node->GetData();
+
+ if (entry->m_fdInput != -1)
+ {
+ wxFD_SET(entry->m_fdInput, readset);
+ if (entry->m_fdInput > *highest)
+ * highest = entry->m_fdInput;
+ }
+
+ if (entry->m_fdOutput != -1)
+ {
+ wxFD_SET(entry->m_fdOutput, writeset);
+ if (entry->m_fdOutput > *highest)
+ * highest = entry->m_fdOutput;
+ }
+
+ node = Next();
+ }
+}
+
+void wxSocketTable::ProcessEvents(fd_set* readset, fd_set* writeset)
+{
+ BeginFind();
+ wxHashTable::compatibility_iterator node = Next();
+ while (node)
+ {
+ wxSocketTableEntry* entry = (wxSocketTableEntry*) node->GetData();
+
+ if (entry->m_fdInput != -1 && wxFD_ISSET(entry->m_fdInput, readset))
+ {
+ (entry->m_callbackInput) (entry->m_fdInput, entry->m_dataInput);
+ }
+
+ if (entry->m_fdOutput != -1 && wxFD_ISSET(entry->m_fdOutput, writeset))
+ {
+ (entry->m_callbackOutput) (entry->m_fdOutput, entry->m_dataOutput);
+ }
+
+ node = Next();
+ }
+}
+
+wxSocketTable* wxTheSocketTable = NULL;
+
+class wxSocketTableModule: public wxModule
+{
+DECLARE_DYNAMIC_CLASS(wxSocketTableModule)
+public:
+ wxSocketTableModule() {}
+ bool OnInit() { wxTheSocketTable = new wxSocketTable; return true; };
+ void OnExit() { delete wxTheSocketTable; wxTheSocketTable = NULL; };
+};
+
+IMPLEMENT_DYNAMIC_CLASS(wxSocketTableModule, wxModule)
+
+// Implement registration functions as C functions so they
+// can be called from gsock11.c
+
+extern "C" void wxRegisterSocketCallback(int fd, wxSocketTableType socketType, wxSocketCallback callback, void* data)
+{
+ if (wxTheSocketTable)
+ {
+ wxTheSocketTable->RegisterCallback(fd, socketType, callback, data);
+ }
+}
+
+extern "C" void wxUnregisterSocketCallback(int fd, wxSocketTableType socketType)
+{
+ if (wxTheSocketTable)
+ {
+ wxTheSocketTable->UnregisterCallback(fd, socketType);
+ }
+}
+#endif
+
// ----------------------------------------------------------------------------
// wxEventLoopImpl
// ----------------------------------------------------------------------------
{
public:
// ctor
- wxEventLoopImpl() { SetExitCode(0); m_keepGoing = FALSE; }
+ wxEventLoopImpl() { SetExitCode(0); m_keepGoing = false; }
- // process an XEvent
- void ProcessEvent(XEvent* event);
+ // process an XEvent, return true if it was processed
+ bool ProcessEvent(XEvent* event);
- // generate an idle message, return TRUE if more idle time requested
+ // generate an idle message, return true if more idle time requested
bool SendIdleEvent();
// set/get the exit code
int GetExitCode() const { return m_exitcode; }
public:
- // preprocess an event, return TRUE if processed (i.e. no further
+ // preprocess an event, return true if processed (i.e. no further
// dispatching required)
bool PreProcessEvent(XEvent* event);
// wxEventLoopImpl message processing
// ----------------------------------------------------------------------------
-void wxEventLoopImpl::ProcessEvent(XEvent *event)
+bool wxEventLoopImpl::ProcessEvent(XEvent *event)
{
// give us the chance to preprocess the message first
- if ( !PreProcessEvent(event) )
- {
- // if it wasn't done, dispatch it to the corresponding window
- if (wxTheApp)
- wxTheApp->ProcessXEvent((WXEvent*) event);
- }
+ if ( PreProcessEvent(event) )
+ return true;
+
+ // if it wasn't done, dispatch it to the corresponding window
+ if (wxTheApp)
+ return wxTheApp->ProcessXEvent((WXEvent*) event);
+
+ return false;
}
bool wxEventLoopImpl::PreProcessEvent(XEvent *event)
for ( wnd = wndThis; wnd; wnd = wnd->GetParent() )
{
if ( wnd->MSWTranslateMessage((WXMSG *)msg) )
- return TRUE;
+ return true;
}
// Anyone for a non-translation message? Try youngest descendants first.
for ( wnd = wndThis; wnd; wnd = wnd->GetParent() )
{
if ( wnd->MSWProcessMessage((WXMSG *)msg) )
- return TRUE;
+ return true;
}
#endif
- return FALSE;
+ return false;
}
// ----------------------------------------------------------------------------
bool wxEventLoopImpl::SendIdleEvent()
{
- wxIdleEvent event;
- event.SetEventObject(wxTheApp);
-
- return wxTheApp->ProcessEvent(event) && event.MoreRequested();
+ return wxTheApp->ProcessIdle();
}
// ============================================================================
// wxEventLoop implementation
// ============================================================================
-wxEventLoop *wxEventLoop::ms_activeLoop = NULL;
-
// ----------------------------------------------------------------------------
// wxEventLoop running and exiting
// ----------------------------------------------------------------------------
wxASSERT_MSG( !m_impl, _T("should have been deleted in Run()") );
}
-bool wxEventLoop::IsRunning() const
-{
- return m_impl != NULL;
-}
-
int wxEventLoop::Run()
{
// event loops are not recursive, you need to create another loop!
wxCHECK_MSG( !IsRunning(), -1, _T("can't reenter a message loop") );
m_impl = new wxEventLoopImpl;
-
- wxEventLoop *oldLoop = ms_activeLoop;
- ms_activeLoop = this;
- m_impl->m_keepGoing = TRUE;
+ wxEventLoopActivator activate(this);
+
+ m_impl->m_keepGoing = true;
while ( m_impl->m_keepGoing )
{
#if 0 // wxUSE_THREADS
- wxMutexGuiLeaveOrEnter();
+ wxMutexGuiLeaveOrEnter();
#endif // wxUSE_THREADS
// generate and process idle events for as long as we don't have
// anything else to do
while ( ! Pending() )
{
+#if wxUSE_TIMER
wxTimer::NotifyTimers(); // TODO: is this the correct place for it?
+#endif
if (!m_impl->SendIdleEvent())
{
#if 0 // wxUSE_THREADS
delete m_impl;
m_impl = NULL;
- ms_activeLoop = oldLoop;
-
return exitcode;
}
wxCHECK_RET( IsRunning(), _T("can't call Exit() if not running") );
m_impl->SetExitCode(rc);
- m_impl->m_keepGoing = FALSE;
+ m_impl->m_keepGoing = false;
}
// ----------------------------------------------------------------------------
bool wxEventLoop::Pending() const
{
- XFlush((Display*) wxGetDisplay());
- return (XPending((Display*) wxGetDisplay()) > 0);
+ XFlush( wxGlobalDisplay() );
+ return (XPending( wxGlobalDisplay() ) > 0);
}
bool wxEventLoop::Dispatch()
{
XEvent event;
+ // Start off by checking if any of our child processes have finished.
+ wxCheckForFinishedChildren();
+
// TODO allowing for threads, as per e.g. wxMSW
- XNextEvent((Display*) wxGetDisplay(), & event);
- m_impl->ProcessEvent(& event);
- return TRUE;
-}
+ // This now waits until either an X event is received,
+ // or the select times out. So we should now process
+ // wxTimers in a reasonably timely fashion. However it
+ // does also mean that idle processing will happen more
+ // often, so we should probably limit idle processing to
+ // not be repeated more than every N milliseconds.
+
+ if (XPending( wxGlobalDisplay() ) == 0)
+ {
+#if wxUSE_NANOX
+ GR_TIMEOUT timeout = 10; // Milliseconds
+ // Wait for next event, or timeout
+ GrGetNextEventTimeout(& event, timeout);
+
+ // Fall through to ProcessEvent.
+ // we'll assume that ProcessEvent will just ignore
+ // the event if there was a timeout and no event.
+
+#else
+ struct timeval tv;
+ tv.tv_sec=0;
+ tv.tv_usec=10000; // TODO make this configurable
+ int fd = ConnectionNumber( wxGlobalDisplay() );
+
+ fd_set readset;
+ fd_set writeset;
+ int highest = fd;
+ wxFD_ZERO(&readset);
+ wxFD_ZERO(&writeset);
+
+ wxFD_SET(fd, &readset);
+
+#if wxUSE_SOCKETS
+ if (wxTheSocketTable)
+ wxTheSocketTable->FillSets( &readset, &writeset, &highest );
+#endif
+
+ if (select( highest+1, &readset, &writeset, NULL, &tv ) == 0)
+ {
+ // Timed out, so no event to process
+ return true;
+ }
+ else
+ {
+ // An X11 event was pending, so get it
+ if (wxFD_ISSET( fd, &readset ))
+ XNextEvent( wxGlobalDisplay(), &event );
+
+#if wxUSE_SOCKETS
+ // Check if any socket events were pending,
+ // and if so, call their callbacks
+ if (wxTheSocketTable)
+ wxTheSocketTable->ProcessEvents( &readset, &writeset );
+#endif
+ }
+#endif
+ }
+ else
+ {
+ XNextEvent( wxGlobalDisplay(), &event );
+ }
+
+ (void) m_impl->ProcessEvent( &event );
+ return true;
+}
projects / wxWidgets.git / blobdiff