Files
wxWidgets/src/mac/utilsexc.cpp
2003-04-19 08:14:46 +00:00

130 lines
3.9 KiB
C++

/////////////////////////////////////////////////////////////////////////////
// Name: utilsexec.cpp
// Purpose: Execution-related utilities
// Author: Stefan Csomor
// Modified by: David Elliott
// Created: 1998-01-01
// RCS-ID: $Id$
// Copyright: (c) Stefan Csomor
// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
#ifdef __GNUG__
//#pragma implementation
#endif
#include "wx/log.h"
#include "wx/utils.h"
#ifdef __DARWIN__
#include "wx/unix/execute.h"
#include <unistd.h>
#include <sys/wait.h>
extern "C" {
#include <mach/mach.h>
}
#include <CoreFoundation/CFMachPort.h>
#endif
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#ifndef __DARWIN__
#define wxEXECUTE_WIN_MESSAGE 10000
long wxExecute(const wxString& command, int flags, wxProcess *handler)
{
// TODO
wxFAIL_MSG( _T("wxExecute() not yet implemented") );
return 0;
}
#endif
#ifdef __DARWIN__
void wxMAC_MachPortEndProcessDetect(CFMachPortRef port, void *data)
{
wxEndProcessData *proc_data = (wxEndProcessData*)data;
wxLogDebug("Wow.. this actually worked!");
int status = 0;
int rc = waitpid(abs(proc_data->pid), &status, WNOHANG);
if(!rc)
{
wxLogDebug("Mach port was invalidated, but process hasn't terminated!");
return;
}
if((rc != -1) && WIFEXITED(status))
proc_data->exitcode = WEXITSTATUS(status);
else
proc_data->exitcode = -1;
wxHandleProcessTermination(proc_data);
}
int wxAddProcessCallbackForPid(wxEndProcessData *proc_data, int pid)
{
if(pid < 1)
return -1;
kern_return_t kernResult;
mach_port_t taskOfOurProcess;
mach_port_t machPortForProcess;
taskOfOurProcess = mach_task_self();
if(taskOfOurProcess == MACH_PORT_NULL)
{
wxLogDebug("No mach_task_self()");
return -1;
}
wxLogDebug("pid=%d",pid);
kernResult = task_for_pid(taskOfOurProcess,pid, &machPortForProcess);
if(kernResult != KERN_SUCCESS)
{
wxLogDebug("no task_for_pid()");
// try seeing if it is already dead or something
// FIXME: a better method would be to call the callback function
// from idle time until the process terminates. Of course, how
// likely is it that it will take more than 0.1 seconds for the
// mach terminate event to make its way to the BSD subsystem?
usleep(100); // sleep for 0.1 seconds
wxMAC_MachPortEndProcessDetect(NULL, (void*)proc_data);
return -1;
}
CFMachPortContext termcb_contextinfo;
termcb_contextinfo.version = NULL;
termcb_contextinfo.info = (void*)proc_data;
termcb_contextinfo.retain = NULL;
termcb_contextinfo.release = NULL;
termcb_contextinfo.copyDescription = NULL;
CFMachPortRef CFMachPortForProcess;
Boolean ShouldFreePort;
CFMachPortForProcess = CFMachPortCreateWithPort(NULL, machPortForProcess, NULL, &termcb_contextinfo, &ShouldFreePort);
if(!CFMachPortForProcess)
{
wxLogDebug("No CFMachPortForProcess");
mach_port_deallocate(taskOfOurProcess, machPortForProcess);
return -1;
}
if(ShouldFreePort)
{
kernResult = mach_port_deallocate(taskOfOurProcess, machPortForProcess);
if(kernResult!=KERN_SUCCESS)
{
wxLogDebug("Couldn't deallocate mach port");
return -1;
}
}
CFMachPortSetInvalidationCallBack(CFMachPortForProcess, &wxMAC_MachPortEndProcessDetect);
CFRunLoopSourceRef runloopsource;
runloopsource = CFMachPortCreateRunLoopSource(NULL,CFMachPortForProcess, (CFIndex)0);
if(!runloopsource)
{
wxLogDebug("Couldn't create runloopsource");
return -1;
}
CFRelease(CFMachPortForProcess);
CFRunLoopAddSource(CFRunLoopGetCurrent(),runloopsource,kCFRunLoopDefaultMode);
CFRelease(runloopsource);
wxLogDebug("Successfully added notification to the runloop");
return 0;
}
#endif