// discard buffer
#define MAX_DISCARD_SIZE (10 * 1024)
-// what to do within waits
+// what to do within waits: in wxBase we don't do anything as we don't have
+// the event loop anyhow (for now). In GUI apps we have 2 cases: from the main
+// thread itself we have to call wxYield() to let the events (including the
+// GUI events and the low-level (not wxWindows) events from GSocket) be
+// processed. From another thread it is enough to just call wxThread::Yield()
+// which will give away the rest of our time slice: the explanation is that
+// the events will be processed by the main thread anyhow, without calling
+// wxYield(), but we don't want to eat the CPU time uselessly while sitting
+// in the loop waiting for the data
#if wxUSE_GUI
- #define PROCESS_EVENTS() wxYield()
-#else
- #define PROCESS_EVENTS()
-#endif
+ #if wxUSE_THREADS
+ #define PROCESS_EVENTS() \
+ { \
+ if ( wxThread::IsMain() ) \
+ wxYield(); \
+ else \
+ wxThread::Yield(); \
+ }
+ #else // !wxUSE_THREADS
+ #define PROCESS_EVENTS() wxYield()
+ #endif // wxUSE_THREADS/!wxUSE_THREADS
+#else // !wxUSE_GUI
+ #define PROCESS_EVENTS()
+#endif // wxUSE_GUI/!wxUSE_GUI
// --------------------------------------------------------------------------
// wxWin macros
// wxSocketBase
// ==========================================================================
+// --------------------------------------------------------------------------
+// Initialization and shutdown
+// --------------------------------------------------------------------------
+
+// FIXME-MT: all this is MT-unsafe, of course, we should protect all accesses
+// to m_countInit with a crit section
+size_t wxSocketBase::m_countInit = 0;
+
+bool wxSocketBase::IsInitialized()
+{
+ return m_countInit > 0;
+}
+
+bool wxSocketBase::Initialize()
+{
+ if ( !m_countInit++ )
+ {
+ if ( !GSocket_Init() )
+ {
+ m_countInit--;
+
+ return FALSE;
+ }
+ }
+
+ return TRUE;
+}
+
+void wxSocketBase::Shutdown()
+{
+ // we should be initialized
+ wxASSERT_MSG( m_countInit, _T("extra call to Shutdown()") );
+ if ( !--m_countInit )
+ {
+ GSocket_Cleanup();
+ }
+}
+
// --------------------------------------------------------------------------
// Ctor and dtor
// --------------------------------------------------------------------------
m_cbk = NULL;
m_cdata = NULL;
#endif // WXWIN_COMPATIBILITY
+
+ if ( !IsInitialized() )
+ {
+ // this Initialize() will be undone by wxSocketModule::OnExit(), all the
+ // other calls to it should be matched by a call to Shutdown()
+ Initialize();
+ }
}
wxSocketBase::wxSocketBase()
{
bool more = TRUE;
- while (more)
+ while (more)
{
if ( !(m_flags & wxSOCKET_BLOCK) && !WaitForWrite() )
break;
buffer = (const char *)buffer + ret;
}
- // Yes, this can happen even when the socket selects as writable!
- // (probably due to a buggy kernel; Linux 2.0.36 seems to do this).
- // Fake it so that we stay in the loop, but do it only for ret < 0,
- // as ret == 0 means that the socket is closed. I'm not applying
- // this hack for read calls as it seems unnecessary there.
- //
- if ((ret < 0) && (GSocket_GetError(m_socket) == GSOCK_WOULDBLOCK))
- {
- wxLogDebug(_("wxSocket: working around select() bug in Write."));
- continue;
- }
-
// If we got here and wxSOCKET_WAITALL is not set, we can leave
// now. Otherwise, wait until we send all the data or until there
// is an error.
// decoupled from wx_socket_callback and thus they suffer from a variety
// of problems. Avoid them where possible and use events instead.
-static void LINKAGEMODE wx_socket_callback(GSocket * WXUNUSED(socket),
- GSocketEvent notification,
- char *cdata)
+extern "C"
+void LINKAGEMODE wx_socket_callback(GSocket * WXUNUSED(socket),
+ GSocketEvent notification,
+ char *cdata)
{
wxSocketBase *sckobj = (wxSocketBase *)cdata;
// ==========================================================================
-// wxSocketServer
+// wxSocketServer
// ==========================================================================
// --------------------------------------------------------------------------
sock->SetFlags(m_flags);
if (!AcceptWith(*sock, wait))
- return NULL;
+ {
+ sock->Destroy();
+ sock = NULL;
+ }
return sock;
}
return (*this);
}
-// ==========================================================================
-// wxSocketEvent
-// ==========================================================================
-
-wxSocketEvent::wxSocketEvent(int id) : wxEvent(id)
-{
- SetEventType( (wxEventType)wxEVT_SOCKET );
-}
-
-void wxSocketEvent::CopyObject(wxObject& object_dest) const
-{
- wxSocketEvent *event = (wxSocketEvent *)&object_dest;
-
- wxEvent::CopyObject(object_dest);
-
- event->m_event = m_event;
- event->m_clientData = m_clientData;
-}
-
// ==========================================================================
// wxSocketModule
// ==========================================================================
class WXDLLEXPORT wxSocketModule : public wxModule
{
- DECLARE_DYNAMIC_CLASS(wxSocketModule)
-
public:
- bool OnInit() { return GSocket_Init(); }
- void OnExit() { GSocket_Cleanup(); }
+ virtual bool OnInit()
+ {
+ // wxSocketBase will call GSocket_Init() itself when/if needed
+ return TRUE;
+ }
+
+ virtual void OnExit()
+ {
+ if ( wxSocketBase::IsInitialized() )
+ wxSocketBase::Shutdown();
+ }
+
+private:
+ DECLARE_DYNAMIC_CLASS(wxSocketModule)
};
IMPLEMENT_DYNAMIC_CLASS(wxSocketModule, wxModule)
projects / wxWidgets.git / blobdiff