1 /////////////////////////////////////////////////////////////////////////////
3 // Purpose: Process termination classes
4 // Author: Guilhem Lavaux
5 // Modified by: Vadim Zeitlin to check error codes, added Detach() method
8 // Copyright: (c) Guilhem Lavaux
9 // Licence: wxWindows licence
10 /////////////////////////////////////////////////////////////////////////////
12 // ============================================================================
14 // ============================================================================
16 // ----------------------------------------------------------------------------
18 // ----------------------------------------------------------------------------
20 #if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
21 #pragma implementation "process.h"
24 // For compilers that support precompilation, includes "wx.h".
25 #include "wx/wxprec.h"
31 #include "wx/process.h"
33 // ----------------------------------------------------------------------------
34 // event tables and such
35 // ----------------------------------------------------------------------------
37 DEFINE_EVENT_TYPE(wxEVT_END_PROCESS)
39 IMPLEMENT_DYNAMIC_CLASS(wxProcess, wxEvtHandler)
40 IMPLEMENT_DYNAMIC_CLASS(wxProcessEvent, wxEvent)
42 // ============================================================================
43 // wxProcess implementation
44 // ============================================================================
46 // ----------------------------------------------------------------------------
48 // ----------------------------------------------------------------------------
50 void wxProcess::Init(wxEvtHandler *parent, int id, int flags)
53 SetNextHandler(parent);
56 m_redirect = (flags & wxPROCESS_REDIRECT) != 0;
61 m_outputStream = NULL;
62 #endif // wxUSE_STREAMS
66 wxProcess *wxProcess::Open(const wxString& cmd, int flags)
68 wxASSERT_MSG( !(flags & wxEXEC_SYNC), wxT("wxEXEC_SYNC should not be used." ));
69 wxProcess *process = new wxProcess(wxPROCESS_REDIRECT);
70 if ( !wxExecute(cmd, flags, process) )
72 // couldn't launch the process
80 // ----------------------------------------------------------------------------
81 // wxProcess termination
82 // ----------------------------------------------------------------------------
84 wxProcess::~wxProcess()
89 delete m_outputStream;
90 #endif // wxUSE_STREAMS
93 void wxProcess::OnTerminate(int pid, int status)
95 wxProcessEvent event(m_id, pid, status);
97 if ( !ProcessEvent(event) )
99 //else: the object which processed the event is responsible for deleting
103 void wxProcess::Detach()
105 SetNextHandler(NULL);
108 // ----------------------------------------------------------------------------
109 // process IO redirection
110 // ----------------------------------------------------------------------------
114 void wxProcess::SetPipeStreams(wxInputStream *inputSstream,
115 wxOutputStream *outputStream,
116 wxInputStream *errorStream)
118 m_inputStream = inputSstream;
119 m_errorStream = errorStream;
120 m_outputStream = outputStream;
123 bool wxProcess::IsInputOpened() const
125 return m_inputStream && m_inputStream->GetLastError() != wxSTREAM_EOF;
128 bool wxProcess::IsInputAvailable() const
130 return m_inputStream && m_inputStream->CanRead();
133 bool wxProcess::IsErrorAvailable() const
135 return m_errorStream && m_errorStream->CanRead();
138 #endif // wxUSE_STREAMS
140 // ----------------------------------------------------------------------------
142 // ----------------------------------------------------------------------------
145 wxKillError wxProcess::Kill(int pid, wxSignal sig)
148 (void)wxKill(pid, sig, &rc);
154 bool wxProcess::Exists(int pid)
156 switch ( Kill(pid, wxSIGNONE) )
159 case wxKILL_ACCESS_DENIED:
164 case wxKILL_BAD_SIGNAL:
165 wxFAIL_MSG( _T("unexpected wxProcess::Kill() return code") );
168 case wxKILL_NO_PROCESS: