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1 | /////////////////////////////////////////////////////////////////////////////// | |
2 | // Name: src/unix/apptraits.cpp | |
3 | // Purpose: implementation of wxGUIAppTraits for Unix systems | |
4 | // Author: Vadim Zeitlin | |
5 | // Created: 2008-03-22 | |
6 | // RCS-ID: $Id$ | |
7 | // Copyright: (c) 2008 Vadim Zeitlin <vadim@wxwindows.org> | |
8 | // Licence: wxWindows licence | |
9 | /////////////////////////////////////////////////////////////////////////////// | |
10 | ||
11 | // ============================================================================ | |
12 | // declarations | |
13 | // ============================================================================ | |
14 | ||
15 | // ---------------------------------------------------------------------------- | |
16 | // headers | |
17 | // ---------------------------------------------------------------------------- | |
18 | ||
19 | // for compilers that support precompilation, includes "wx.h". | |
20 | #include "wx/wxprec.h" | |
21 | ||
22 | #ifdef __BORLANDC__ | |
23 | #pragma hdrstop | |
24 | #endif | |
25 | ||
26 | #include "wx/apptrait.h" | |
27 | ||
28 | #ifndef WX_PRECOMP | |
29 | #include "wx/utils.h" | |
30 | #endif // WX_PRECOMP | |
31 | ||
32 | #include "wx/unix/execute.h" | |
33 | ||
34 | // ============================================================================ | |
35 | // implementation | |
36 | // ============================================================================ | |
37 | ||
38 | int wxGUIAppTraits::WaitForChild(wxExecuteData& execData) | |
39 | { | |
40 | const int flags = execData.flags; | |
41 | if ( !(flags & wxEXEC_SYNC) || (flags & wxEXEC_NOEVENTS) ) | |
42 | { | |
43 | // async or blocking sync cases are already handled by the base class | |
44 | // just fine, no need to duplicate its code here | |
45 | return wxAppTraits::WaitForChild(execData); | |
46 | } | |
47 | ||
48 | // here we're dealing with the case of synchronous execution when we want | |
49 | // to process the GUI events while waiting for the child termination | |
50 | ||
51 | wxEndProcessData endProcData; | |
52 | endProcData.pid = execData.pid; | |
53 | endProcData.tag = AddProcessCallback | |
54 | ( | |
55 | &endProcData, | |
56 | execData.GetEndProcReadFD() | |
57 | ); | |
58 | endProcData.async = false; | |
59 | ||
60 | ||
61 | // prepare to wait for the child termination: show to the user that we're | |
62 | // busy and refuse all input unless explicitly told otherwise | |
63 | wxBusyCursor bc; | |
64 | wxWindowDisabler wd(!(flags & wxEXEC_NODISABLE)); | |
65 | ||
66 | // endProcData.pid will be set to 0 from wxHandleProcessTermination() when | |
67 | // the process terminates | |
68 | while ( endProcData.pid != 0 ) | |
69 | { | |
70 | // don't consume 100% of the CPU while we're sitting in this | |
71 | // loop | |
72 | if ( !CheckForRedirectedIO(execData) ) | |
73 | wxMilliSleep(1); | |
74 | ||
75 | // give the toolkit a chance to call wxHandleProcessTermination() here | |
76 | // and also repaint the GUI and handle other accumulated events | |
77 | wxYield(); | |
78 | } | |
79 | ||
80 | return endProcData.exitcode; | |
81 | } | |
82 | ||
83 |