X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/81d66cf39f810503baed79213bc3122fda0ccc7b..e7300ec6d9ebbd1cfa2fcf12c0ce6e5aee85a152:/src/common/process.cpp?ds=sidebyside diff --git a/src/common/process.cpp b/src/common/process.cpp index d1c255ac95..05e24ffb20 100644 --- a/src/common/process.cpp +++ b/src/common/process.cpp @@ -2,56 +2,141 @@ // Name: process.cpp // Purpose: Process termination classes // 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) Guilhem Lavaux -// Licence: wxWindows license +// Licence: wxWindows license ///////////////////////////////////////////////////////////////////////////// +// ============================================================================ +// declarations +// ============================================================================ + +// ---------------------------------------------------------------------------- +// headers +// ---------------------------------------------------------------------------- + #ifdef __GNUG__ -#pragma implementation "process.h" + #pragma implementation "process.h" #endif // For compilers that support precompilation, includes "wx.h". #include "wx/wxprec.h" #ifdef __BORLANDC__ -#pragma hdrstop -#endif - -#ifndef WX_PRECOMP -#include "wx/defs.h" + #pragma hdrstop #endif #include "wx/process.h" -#if !USE_SHARED_LIBRARY +// ---------------------------------------------------------------------------- +// event tables and such +// ---------------------------------------------------------------------------- + +DEFINE_EVENT_TYPE(wxEVT_END_PROCESS) + IMPLEMENT_DYNAMIC_CLASS(wxProcess, wxEvtHandler) IMPLEMENT_DYNAMIC_CLASS(wxProcessEvent, wxEvent) -#endif -wxProcess::wxProcess(wxEvtHandler *parent, int id) +// ============================================================================ +// wxProcess implementation +// ============================================================================ + +// ---------------------------------------------------------------------------- +// wxProcess creation +// ---------------------------------------------------------------------------- + +void wxProcess::Init(wxEvtHandler *parent, int id, bool redirect) { - if (parent) - SetPreviousHandler(parent); + if ( parent ) + SetNextHandler(parent); - m_id = id; + m_id = id; + m_redirect = redirect; + +#if wxUSE_STREAMS + m_inputStream = NULL; + m_errorStream = NULL; + m_outputStream = NULL; +#endif // wxUSE_STREAMS } +// ---------------------------------------------------------------------------- +// wxProcess termination +// ---------------------------------------------------------------------------- + wxProcess::~wxProcess() { +#if wxUSE_STREAMS + delete m_inputStream; + delete m_errorStream; + delete m_outputStream; +#endif // wxUSE_STREAMS } -void wxProcess::OnTerminate(int pid) +void wxProcess::OnTerminate(int pid, int status) { - wxProcessEvent event(m_id, pid); + wxProcessEvent event(m_id, pid, status); - ProcessEvent(event); + if ( !ProcessEvent(event) ) + delete this; + //else: the object which processed the event is responsible for deleting + // us! } -wxProcessEvent::wxProcessEvent(int id, int pid): - wxEvent(id), m_pid(pid) +void wxProcess::Detach() { + SetNextHandler(NULL); +} + +// ---------------------------------------------------------------------------- +// process IO redirection +// ---------------------------------------------------------------------------- + +#if wxUSE_STREAMS + +void wxProcess::SetPipeStreams(wxInputStream *inputSstream, + wxOutputStream *outputStream, + wxInputStream *errorStream) +{ + m_inputStream = inputSstream; + m_errorStream = errorStream; + m_outputStream = outputStream; +} + +#endif // wxUSE_STREAMS + +// ---------------------------------------------------------------------------- +// process killing +// ---------------------------------------------------------------------------- + +/* static */ +wxKillError wxProcess::Kill(int pid, wxSignal sig) +{ + wxKillError rc; + (void)wxKill(pid, sig, &rc); + + return rc; +} + +/* static */ +bool wxProcess::Exists(int pid) +{ + switch ( Kill(pid, wxSIGNONE) ) + { + case wxKILL_OK: + case wxKILL_ACCESS_DENIED: + return TRUE; + + default: + case wxKILL_ERROR: + case wxKILL_BAD_SIGNAL: + wxFAIL_MSG( _T("unexpected wxProcess::Kill() return code") ); + // fall through + + case wxKILL_NO_PROCESS: + return FALSE; + } }