/[pcsx2_0.9.7]/trunk/3rdparty/wxWidgets/src/common/process.cpp
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Contents of /trunk/3rdparty/wxWidgets/src/common/process.cpp

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Revision 31 - (show annotations) (download)
Tue Sep 7 03:24:11 2010 UTC (10 years, 2 months ago) by william
File size: 4697 byte(s)
committing r3113 initial commit again...
1 /////////////////////////////////////////////////////////////////////////////
2 // Name: process.cpp
3 // Purpose: Process termination classes
4 // Author: Guilhem Lavaux
5 // Modified by: Vadim Zeitlin to check error codes, added Detach() method
6 // Created: 24/06/98
7 // RCS-ID: $Id: process.cpp 42702 2006-10-30 09:03:18Z JS $
8 // Copyright: (c) Guilhem Lavaux
9 // Licence: wxWindows licence
10 /////////////////////////////////////////////////////////////////////////////
11
12 // ============================================================================
13 // declarations
14 // ============================================================================
15
16 // ----------------------------------------------------------------------------
17 // headers
18 // ----------------------------------------------------------------------------
19
20 // For compilers that support precompilation, includes "wx.h".
21 #include "wx/wxprec.h"
22
23 #ifdef __BORLANDC__
24 #pragma hdrstop
25 #endif
26
27 #include "wx/process.h"
28
29 // ----------------------------------------------------------------------------
30 // event tables and such
31 // ----------------------------------------------------------------------------
32
33 DEFINE_EVENT_TYPE(wxEVT_END_PROCESS)
34
35 IMPLEMENT_DYNAMIC_CLASS(wxProcess, wxEvtHandler)
36 IMPLEMENT_DYNAMIC_CLASS(wxProcessEvent, wxEvent)
37
38 // ============================================================================
39 // wxProcess implementation
40 // ============================================================================
41
42 // ----------------------------------------------------------------------------
43 // wxProcess creation
44 // ----------------------------------------------------------------------------
45
46 void wxProcess::Init(wxEvtHandler *parent, int id, int flags)
47 {
48 if ( parent )
49 SetNextHandler(parent);
50
51 m_id = id;
52 m_pid = 0;
53 m_redirect = (flags & wxPROCESS_REDIRECT) != 0;
54
55 #if wxUSE_STREAMS
56 m_inputStream = NULL;
57 m_errorStream = NULL;
58 m_outputStream = NULL;
59 #endif // wxUSE_STREAMS
60 }
61
62 /* static */
63 wxProcess *wxProcess::Open(const wxString& cmd, int flags)
64 {
65 wxASSERT_MSG( !(flags & wxEXEC_SYNC), wxT("wxEXEC_SYNC should not be used." ));
66 wxProcess *process = new wxProcess(wxPROCESS_REDIRECT);
67 long pid = wxExecute(cmd, flags, process);
68 if( !pid )
69 {
70 // couldn't launch the process
71 delete process;
72 return NULL;
73 }
74
75 process->SetPid(pid);
76
77 return process;
78 }
79
80 // ----------------------------------------------------------------------------
81 // wxProcess termination
82 // ----------------------------------------------------------------------------
83
84 wxProcess::~wxProcess()
85 {
86 #if wxUSE_STREAMS
87 delete m_inputStream;
88 delete m_errorStream;
89 delete m_outputStream;
90 #endif // wxUSE_STREAMS
91 }
92
93 void wxProcess::OnTerminate(int pid, int status)
94 {
95 wxProcessEvent event(m_id, pid, status);
96
97 if ( !ProcessEvent(event) )
98 delete this;
99 //else: the object which processed the event is responsible for deleting
100 // us!
101 }
102
103 void wxProcess::Detach()
104 {
105 SetNextHandler(NULL);
106 }
107
108 // ----------------------------------------------------------------------------
109 // process IO redirection
110 // ----------------------------------------------------------------------------
111
112 #if wxUSE_STREAMS
113
114 void wxProcess::SetPipeStreams(wxInputStream *inputSstream,
115 wxOutputStream *outputStream,
116 wxInputStream *errorStream)
117 {
118 m_inputStream = inputSstream;
119 m_errorStream = errorStream;
120 m_outputStream = outputStream;
121 }
122
123 bool wxProcess::IsInputOpened() const
124 {
125 return m_inputStream && m_inputStream->GetLastError() != wxSTREAM_EOF;
126 }
127
128 bool wxProcess::IsInputAvailable() const
129 {
130 return m_inputStream && m_inputStream->CanRead();
131 }
132
133 bool wxProcess::IsErrorAvailable() const
134 {
135 return m_errorStream && m_errorStream->CanRead();
136 }
137
138 #endif // wxUSE_STREAMS
139
140 // ----------------------------------------------------------------------------
141 // process killing
142 // ----------------------------------------------------------------------------
143
144 /* static */
145 wxKillError wxProcess::Kill(int pid, wxSignal sig, int flags)
146 {
147 wxKillError rc;
148 (void)wxKill(pid, sig, &rc, flags);
149
150 return rc;
151 }
152
153 /* static */
154 bool wxProcess::Exists(int pid)
155 {
156 switch ( Kill(pid, wxSIGNONE) )
157 {
158 case wxKILL_OK:
159 case wxKILL_ACCESS_DENIED:
160 return true;
161
162 default:
163 case wxKILL_ERROR:
164 case wxKILL_BAD_SIGNAL:
165 wxFAIL_MSG( _T("unexpected wxProcess::Kill() return code") );
166 // fall through
167
168 case wxKILL_NO_PROCESS:
169 return false;
170 }
171 }
172

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