Implement monitoring of file descriptors in wxMotif event loop.

[wxWidgets.git] / include / wx / private / selectdispatcher.h

diff --git a/include/wx/private/selectdispatcher.h b/include/wx/private/selectdispatcher.h
index 5eed47c55c081530803911b803b489ba05237d59..5c17fe650e68728d036ac8a8216870321fecb1e3 100644 (file)
--- a/include/wx/private/selectdispatcher.h
+++ b/include/wx/private/selectdispatcher.h
@@ -15,14 +15,17 @@
 
 #if wxUSE_SELECT_DISPATCHER
 
+#if defined(HAVE_SYS_SELECT_H) || defined(__WATCOMC__)
+    #include <sys/time.h>
+    #include <sys/select.h>
+#endif
+
 #ifdef __WATCOMC__
-  #include <types.h>
-  #include <sys/ioctl.h>
-  #include <sys/time.h>
-  #include <sys/select.h>
-  #include <tcpustd.h>
+    #include <types.h>
+    #include <sys/ioctl.h>
+    #include <tcpustd.h>
 #else
-  #include <sys/types.h>
+    #include <sys/types.h>
 #endif
 
 #include "wx/private/fdiodispatcher.h"
@@ -56,8 +59,9 @@ public:
     // select() itself
     int Select(int nfds, struct timeval *tv);
 
-    // call the handler methods corresponding to the sets having this fd
-    void Handle(int fd, wxFDIOHandler& handler) const;
+    // call the handler methods corresponding to the sets having this fd if it
+    // is present in any set and return true if it is
+    bool Handle(int fd, wxFDIOHandler& handler) const;
 
 private:
     typedef void (wxFDIOHandler::*Callback)();
@@ -91,19 +95,25 @@ public:
     virtual bool RegisterFD(int fd, wxFDIOHandler *handler, int flags = wxFDIO_ALL);
     virtual bool ModifyFD(int fd, wxFDIOHandler *handler, int flags = wxFDIO_ALL);
     virtual bool UnregisterFD(int fd);
-    virtual void Dispatch(int timeout = TIMEOUT_INFINITE);
+    virtual bool HasPending() const;
+    virtual int Dispatch(int timeout = TIMEOUT_INFINITE);
 
 private:
     // common part of RegisterFD() and ModifyFD()
     bool DoUpdateFDAndHandler(int fd, wxFDIOHandler *handler, int flags);
 
-    // call the handlers for the fds present in the given sets
-    void ProcessSets(const wxSelectSets& sets);
+    // call the handlers for the fds present in the given sets, return the
+    // number of handlers we called
+    int ProcessSets(const wxSelectSets& sets);
 
     // helper of ProcessSets(): call the handler if its fd is in the set
     void DoProcessFD(int fd, const fd_set& fds, wxFDIOHandler *handler,
                      const char *name);
 
+    // common part of HasPending() and Dispatch(): calls select() with the
+    // specified timeout
+    int DoSelect(wxSelectSets& sets, int timeout) const;
+
 
     // the select sets containing all the registered fds
     wxSelectSets m_sets;