// Name: process.h
// Purpose: wxProcess class
// Author: Guilhem Lavaux
-// Modified by:
+// Modified by: Vadim Zeitlin to check error codes, added Detach() method
// Created: 24/06/98
// RCS-ID: $Id$
// Copyright: (c) 1998 Guilhem Lavaux
-// Licence: wxWindows license
+// Licence: wxWindows license
/////////////////////////////////////////////////////////////////////////////
-#ifndef __PROCESSH__
-#define __PROCESSH__
+#ifndef _WX_PROCESSH__
+#define _WX_PROCESSH__
#ifdef __GNUG__
-#pragma interface "process.h"
+ #pragma interface "process.h"
#endif
-#include "wx/defs.h"
-#include "wx/object.h"
#include "wx/event.h"
-class WXDLLEXPORT wxProcess: public wxEvtHandler
+#if wxUSE_STREAMS
+ #include "wx/stream.h"
+#endif
+
+#include "wx/utils.h" // for wxSignal
+
+// ----------------------------------------------------------------------------
+// A wxProcess object should be passed to wxExecute - than its OnTerminate()
+// function will be called when the process terminates.
+// ----------------------------------------------------------------------------
+
+class WXDLLEXPORT wxProcess : public wxEvtHandler
{
- DECLARE_DYNAMIC_CLASS(wxProcess)
- public:
+public:
+ wxProcess(wxEvtHandler *parent = (wxEvtHandler *) NULL, int id = -1)
+ { Init(parent, id, FALSE); }
+ wxProcess(wxEvtHandler *parent, bool redirect)
+ { Init(parent, -1, redirect); }
+
+ virtual ~wxProcess();
+
+ // may be overridden to be notified about process termination
+ virtual void OnTerminate(int pid, int status);
+
+ // call this before passing the object to wxExecute() to redirect the
+ // launched process stdin/stdout, then use GetInputStream() and
+ // GetOutputStream() to get access to them
+ void Redirect() { m_redirect = TRUE; }
+ bool IsRedirected() const { return m_redirect; }
+
+ // detach from the parent - should be called by the parent if it's deleted
+ // before the process it started terminates
+ void Detach();
+
+#if wxUSE_STREAMS
+ // Pipe handling
+ wxInputStream *GetInputStream() const { return m_inputStream; }
+ wxInputStream *GetErrorStream() const { return m_errorStream; }
+ wxOutputStream *GetOutputStream() const { return m_outputStream; }
+
+ // close the output stream indicating that nothing more will be written
+ void CloseOutput() { delete m_outputStream; m_outputStream = NULL; }
- wxProcess(wxEvtHandler *parent = NULL, int id = -1);
- virtual ~wxProcess();
+ // implementation only (for wxExecute)
+ void SetPipeStreams(wxInputStream *inStream,
+ wxOutputStream *outStream,
+ wxInputStream *errStream);
+#endif // wxUSE_STREAMS
- virtual void OnTerminate(int pid);
+ // kill the process with the given PID
+ static wxKillError Kill(int pid, wxSignal sig = wxSIGTERM);
- protected:
- int m_id;
+ // test if the given process exists
+ static bool Exists(int pid);
+
+protected:
+ void Init(wxEvtHandler *parent, int id, bool redirect);
+
+ int m_id;
+
+#if wxUSE_STREAMS
+ wxInputStream *m_inputStream,
+ *m_errorStream;
+ wxOutputStream *m_outputStream;
+#endif // wxUSE_STREAMS
+
+ bool m_redirect;
+
+ DECLARE_DYNAMIC_CLASS(wxProcess)
};
-// Process Event handling
+// ----------------------------------------------------------------------------
+// wxProcess events
+// ----------------------------------------------------------------------------
-class WXDLLEXPORT wxProcessEvent: public wxEvent
+BEGIN_DECLARE_EVENT_TYPES()
+ DECLARE_EVENT_TYPE(wxEVT_END_PROCESS, 440)
+END_DECLARE_EVENT_TYPES()
+
+class WXDLLEXPORT wxProcessEvent : public wxEvent
{
- DECLARE_DYNAMIC_CLASS(wxProcessEvent)
- public:
+public:
+ wxProcessEvent(int id = 0, int pid = 0, int exitcode = 0) : wxEvent(id)
+ {
+ m_eventType = wxEVT_END_PROCESS;
+ m_pid = pid;
+ m_exitcode = exitcode;
+ }
+
+ // accessors
+ // PID of process which terminated
+ int GetPid() { return m_pid; }
+
+ // the exit code
+ int GetExitCode() { return m_exitcode; }
+
+ // implement the base class pure virtual
+ virtual wxEvent *Clone() const { return new wxProcessEvent(*this); }
- wxProcessEvent(int id = 0, int pid = -1);
-
- inline int GetPid() { return m_pid; }
- inline void SetPid(int pid) { m_pid = pid; }
+public:
+ int m_pid,
+ m_exitcode;
- public:
- int m_pid;
+ DECLARE_DYNAMIC_CLASS(wxProcessEvent)
};
-typedef void (wxObject::*wxProcessEventFunction)(wxProcessEvent&);
+typedef void (wxEvtHandler::*wxProcessEventFunction)(wxProcessEvent&);
-#define EVT_END_PROCESS(id, func) { wxEVT_END_TERMINATE, id, -1, (wxObjectEvent) (wxEventFunction) (wxProcessEventFunction) & fn, NULL},
+#define EVT_END_PROCESS(id, func) \
+ DECLARE_EVENT_TABLE_ENTRY( \
+ wxEVT_END_PROCESS, id, -1, \
+ (wxObjectEventFunction) \
+ (wxEventFunction) \
+ (wxProcessEventFunction) & func, NULL),
#endif
- // __PROCESSH__
+ // _WX_PROCESSH__