X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/fc480dc16bcaec2c295b227e0a4b6daf2776d129..9ed79eee4ee3f8c83a87094eef4b7c933663001b:/src/mac/corefoundation/utilsexc_cf.cpp

diff --git a/src/mac/corefoundation/utilsexc_cf.cpp b/src/mac/corefoundation/utilsexc_cf.cpp
index a3f55509be..c5c4a40811 100644
--- a/src/mac/corefoundation/utilsexc_cf.cpp
+++ b/src/mac/corefoundation/utilsexc_cf.cpp
@@ -1,11 +1,11 @@
 /////////////////////////////////////////////////////////////////////////////
 // Name:        src/mac/corefoundation/utilsexec_cf.cpp
 // Purpose:     Execution-related utilities for Darwin
-// Author:      David Elliott
+// Author:      David Elliott, Ryan Norton (wxMacExecute)
 // Modified by: Stefan Csomor (added necessary wxT for unicode builds)
 // Created:     2004-11-04
 // RCS-ID:      $Id$
-// Copyright:   (c) David Elliott
+// Copyright:   (c) David Elliott, Ryan Norton
 // Licence:     wxWindows licence
 // Notes:       This code comes from src/mac/carbon/utilsexc.cpp,1.11
 /////////////////////////////////////////////////////////////////////////////
@@ -18,9 +18,109 @@
 #include "wx/unix/execute.h"
 #include "wx/stdpaths.h"
 #include "wx/apptrait.h"
+#include "wx/thread.h"
+#include "wx/process.h"
 
-#include <CoreFoundation/CFMachPort.h>
 #include <sys/wait.h>
+
+// Use polling instead of Mach ports, which doesn't work on Intel
+// due to task_for_pid security issues.
+
+// What's a better test for Intel vs PPC?
+#ifdef WORDS_BIGENDIAN
+#define USE_POLLING 0
+#else
+#define USE_POLLING 1
+#endif
+
+#if USE_POLLING
+
+class wxProcessTerminationEventHandler: public wxEvtHandler
+{
+  public:
+    wxProcessTerminationEventHandler(wxEndProcessData* data)
+    {
+        m_data = data;
+        Connect(-1, wxEVT_END_PROCESS, wxProcessEventHandler(wxProcessTerminationEventHandler::OnTerminate));
+    }
+
+    void OnTerminate(wxProcessEvent& event)
+    {
+        Disconnect(-1, wxEVT_END_PROCESS, wxProcessEventHandler(wxProcessTerminationEventHandler::OnTerminate));
+        wxHandleProcessTermination(m_data);
+        delete this;
+    }
+
+    wxEndProcessData* m_data;
+};
+
+class wxProcessTerminationThread: public wxThread
+{
+  public:
+    wxProcessTerminationThread(wxEndProcessData* data, wxProcessTerminationEventHandler* handler): wxThread(wxTHREAD_DETACHED)
+    {
+        m_data = data;
+        m_handler = handler;
+    }
+
+    virtual void* Entry();
+
+    wxProcessTerminationEventHandler* m_handler;
+    wxEndProcessData* m_data;
+};
+
+// The problem with this is that we may be examining the
+// process e.g. in OnIdle at the point this cleans up the process,
+// so we need to delay until it's safe.
+
+void* wxProcessTerminationThread::Entry()
+{
+    while (true)
+    {
+        usleep(100);
+        int status = 0;
+        int rc = waitpid(abs(m_data->pid), & status, WNOHANG);
+        if (rc != 0)
+        {
+            if ((rc != -1) && WIFEXITED(status))
+                m_data->exitcode = WEXITSTATUS(status);
+            else
+                m_data->exitcode = -1;
+
+            wxProcessEvent event;
+            wxPostEvent(m_handler, event);
+
+            break;
+        }
+    }
+
+    return NULL;
+}
+
+int wxAddProcessCallbackForPid(wxEndProcessData *proc_data, int pid)
+{
+    if (pid < 1)
+        return -1;
+
+    wxProcessTerminationEventHandler* handler = new wxProcessTerminationEventHandler(proc_data);
+    wxProcessTerminationThread* thread = new wxProcessTerminationThread(proc_data, handler);
+
+    if (thread->Create() != wxTHREAD_NO_ERROR)
+    {
+        wxLogDebug(wxT("Could not create termination detection thread."));
+        delete thread;
+        delete handler;
+        return -1;
+    }
+
+    thread->Run();
+
+    return 0;
+}
+
+#else // !USE_POLLING
+
+#include <CoreFoundation/CFMachPort.h>
 extern "C" {
 #include <mach/mach.h>
 }
@@ -28,18 +128,18 @@ extern "C" {
 void wxMAC_MachPortEndProcessDetect(CFMachPortRef port, void *data)
 {
     wxEndProcessData *proc_data = (wxEndProcessData*)data;
-    wxLogDebug(wxT("Wow.. this actually worked!"));
+    wxLogDebug(wxT("Process ended"));
     int status = 0;
     int rc = waitpid(abs(proc_data->pid), &status, WNOHANG);
     if(!rc)
     {
-    	wxLogDebug(wxT("Mach port was invalidated, but process hasn't terminated!"));
-    	return;
+        wxLogDebug(wxT("Mach port was invalidated, but process hasn't terminated!"));
+        return;
     }
     if((rc != -1) && WIFEXITED(status))
-    	proc_data->exitcode = WEXITSTATUS(status);
+        proc_data->exitcode = WEXITSTATUS(status);
     else
-    	proc_data->exitcode = -1;
+        proc_data->exitcode = -1;
     wxHandleProcessTermination(proc_data);
 }
 
@@ -71,7 +171,7 @@ int wxAddProcessCallbackForPid(wxEndProcessData *proc_data, int pid)
         return -1;
     }
     CFMachPortContext termcb_contextinfo;
-    termcb_contextinfo.version = NULL;
+    termcb_contextinfo.version = 0;
     termcb_contextinfo.info = (void*)proc_data;
     termcb_contextinfo.retain = NULL;
     termcb_contextinfo.release = NULL;
@@ -102,7 +202,7 @@ int wxAddProcessCallbackForPid(wxEndProcessData *proc_data, int pid)
         wxLogDebug(wxT("Couldn't create runloopsource"));
         return -1;
     }
-    
+
     CFRelease(CFMachPortForProcess);
 
     CFRunLoopAddSource(CFRunLoopGetCurrent(),runloopsource,kCFRunLoopDefaultMode);
@@ -111,11 +211,17 @@ int wxAddProcessCallbackForPid(wxEndProcessData *proc_data, int pid)
     return 0;
 }
 
-// NOTE: This doens't really belong here but this was a handy file to
+#endif // USE_POLLING/!USE_POLLING
+
+// NOTE: This doesn't really belong here but this was a handy file to
 // put it in because it's already compiled for wxCocoa and wxMac GUI lib.
+#if wxUSE_GUI
+
 static wxStandardPathsCF gs_stdPaths;
 wxStandardPathsBase& wxGUIAppTraits::GetStandardPaths()
 {
     return gs_stdPaths;
 }
 
+#endif // wxUSE_GUI
+