| 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 | |