Initial work on virtual file system support for the WebKitGTK+ backend. It now suppor...

[wxWidgets.git] / include / wx / unix / apptbase.h

diff --git a/include/wx/unix/apptbase.h b/include/wx/unix/apptbase.h
index fc238d1b194591e41f1281ff7acefef752e0d001..8bf6b4cb97efe82b83880420ab01a666581ad5c6 100644 (file)
--- a/include/wx/unix/apptbase.h
+++ b/include/wx/unix/apptbase.h
@@ -12,42 +12,55 @@
 #ifndef _WX_UNIX_APPTBASE_H_
 #define _WX_UNIX_APPTBASE_H_
 
+struct wxEndProcessData;
 struct wxExecuteData;
-class wxPipe;
+class wxFDIOManager;
 
 // ----------------------------------------------------------------------------
 // wxAppTraits: the Unix version adds extra hooks needed by Unix code
 // ----------------------------------------------------------------------------
 
-class WXDLLEXPORT wxAppTraits : public wxAppTraitsBase
+class WXDLLIMPEXP_BASE wxAppTraits : public wxAppTraitsBase
 {
 public:
     // wxExecute() support methods
     // ---------------------------
 
-    // called before starting the child process and creates the pipe used for
-    // detecting the process termination asynchronously in GUI, does nothing in
-    // wxBase
-    //
-    // if it returns false, we should return from wxExecute() with an error
-    virtual bool CreateEndProcessPipe(wxExecuteData& execData) = 0;
-
-    // test if the given descriptor is the end of the pipe create by the
-    // function above
-    virtual bool IsWriteFDOfEndProcessPipe(wxExecuteData& execData, int fd) = 0;
-
-    // ensure that the write end of the pipe is not closed by wxPipe dtor
-    virtual void DetachWriteFDOfEndProcessPipe(wxExecuteData& execData) = 0;
-
     // wait for the process termination, return whatever wxExecute() must
     // return
-    virtual int WaitForChild(wxExecuteData& execData) = 0;
+    //
+    // base class implementation handles all cases except wxEXEC_SYNC without
+    // wxEXEC_NOEVENTS one which is implemented at the GUI level
+    virtual int WaitForChild(wxExecuteData& execData);
 
+    // integrate the monitoring of the given fd with the port-specific event
+    // loop: when this fd, which corresponds to a dummy pipe opened between the
+    // parent and child processes, is closed by the child, the parent is
+    // notified about this via a call to wxHandleProcessTermination() function
+    //
+    // the default implementation uses wxFDIODispatcher and so is suitable for
+    // the console applications or ports which don't have any specific event
+    // loop
+    virtual int AddProcessCallback(wxEndProcessData *data, int fd);
 
-    // wxThread helpers
-    // ----------------
+#if wxUSE_SOCKETS
+    // return a pointer to the object which should be used to integrate
+    // monitoring of the file descriptors to the event loop (currently this is
+    // used for the sockets only but should be used for arbitrary event loop
+    // sources in the future)
+    //
+    // this object may be different for the console and GUI applications
+    //
+    // the pointer is not deleted by the caller as normally it points to a
+    // static variable
+    virtual wxFDIOManager *GetFDIOManager();
+#endif // wxUSE_SOCKETS
 
-    // TODO
+protected:
+    // a helper for the implementation of WaitForChild() in wxGUIAppTraits:
+    // checks the streams used for redirected IO in execData and returns true
+    // if there is any activity in them
+    bool CheckForRedirectedIO(wxExecuteData& execData);
 };
 
 #endif // _WX_UNIX_APPTBASE_H_