pipedprocess.h

   1 #ifndef QEMU_GUI_PIPED_PROCESS_H
   2 #define QEMU_GUI_PIPED_PROCESS_H
   3
   4 #include <wx/event.h>
   5 #include <wx/process.h>
   6 #include <wx/timer.h>
   7 #include "events.h"
   8 //#include <wx/wx.h>
   9 //#include <wx/txtstrm.h>
  10
  11 DECLARE_EVENT_TYPE(EVT_PROCESS_INPUT,wxID_ANY)
  12 DECLARE_EVENT_TYPE(EVT_PROCESS_OUTPUT,wxID_ANY)
  13 DECLARE_EVENT_TYPE(EVT_PROCESS_CREATED,wxID_ANY)
  14 DECLARE_EVENT_TYPE(EVT_PROCESS_TERMINATED,wxID_ANY)
  15 //WX_DEFINE_ARRAY_PTR(wxEvtHandler *,EvtHandlerArray);
  16
  17 class PipedProcess : public wxProcess
  18 {
  19 public:
  20         PipedProcess();
  21         ~PipedProcess();
  22
  23         /**
  24          * runs the passed command, and checks for input in the given
  25          * interval. returns the pid or 0 if an error occured.
  26          */
  27         long Launch(const wxString& cmd,unsigned int interval = 100);
  28
  29         /**
  30          * sends the given string to the childs stdin
  31          */
  32         void SendString(const wxString& text);
  33
  34         /**
  35          * checks whether the child process printed something to it's
  36          * stdout and if so generates EVT_PROCESS_INPUT events
  37          */
  38         bool HasInput();
  39
  40         /**
  41          * adds an event handler which will be notified if an event occurs
  42          */
  43         void AddEventHandler(wxEvtHandler *handler);
  44 private:
  45         /**
  46          * gets called if the child process terminates, generates an
  47          * EVT_PROCESS_TERMINATED event.
  48          */
  49         virtual void OnTerminate(int pid, int status);
  50
  51         /**
  52          * gets called according to the interval passed to Launch()
  53          * and checks if there is some input available by calling
  54          * HasInput();
  55          */
  56         void OnTimer(wxTimerEvent& event);
  57         void OnIdle(wxIdleEvent& event);
  58
  59         void SendEvent(wxCommandEvent& event);
  60
  61         bool running;
  62         wxTimer timer;
  63         EvtHandlerArray evtHandlers;
  64         long pid;
  65         DECLARE_EVENT_TABLE();
  66 };
  67
  68 enum {
  69         ID_QEMU_TIMER_POLL_PROCESS = 10002
  70 };
  71
  72 #endif