gecko-dev/xpcom/threads/nsProcessCommon.cpp

169 lines
4.1 KiB
C++

/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* The contents of this file are subject to the Netscape Public
* License Version 1.1 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.mozilla.org/NPL/
*
* Software distributed under the License is distributed on an "AS
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
* implied. See the License for the specific language governing
* rights and limitations under the License.
*
* The Original Code is Mozilla Communicator client code,
* released March 31, 1998.
*
* The Initial Developer of the Original Code is Netscape Communications
* Corporation. Portions created by Netscape are
* Copyright (C) 1998-1999 Netscape Communications Corporation. All
* Rights Reserved.
*
* Contributor(s):
* Don Bragg <dbragg@netscape.com>
*/
/*****************************************************************************
*
* nsProcess is used to execute new processes and specify if you want to
* wait (blocking) or continue (non-blocking).
*
*****************************************************************************
*/
#include "nsCOMPtr.h"
#include "nsMemory.h"
#include "nsProcess.h"
#include "prtypes.h"
#include "prio.h"
#include <stdlib.h>
//-------------------------------------------------------------------//
// nsIProcess implementation
//-------------------------------------------------------------------//
NS_IMPL_ISUPPORTS1(nsProcess, nsIProcess)
//Constructor
nsProcess::nsProcess():mExitValue(-1),
mProcess(nsnull)
{
NS_INIT_ISUPPORTS();
}
nsProcess::~nsProcess()
{
}
NS_IMETHODIMP
nsProcess::Init(nsIFile* executable)
{
PRBool isFile;
//First make sure the file exists
nsresult rv = executable->IsFile(&isFile);
if (NS_FAILED(rv)) return rv;
if (!isFile)
return NS_ERROR_FAILURE;
//Store the nsIFile in mExecutable
mExecutable = executable;
//Get the path because it is needed by the NSPR process creation
#ifdef XP_WIN
rv = mExecutable->GetTarget(getter_Copies(mTargetPath));
if (NS_FAILED(rv) || !mTargetPath )
#endif
rv = mExecutable->GetPath(getter_Copies(mTargetPath));
return rv;
}
NS_IMETHODIMP
nsProcess::Run(PRBool blocking, const char **args, PRUint32 count, PRUint32 *pid)
{
nsresult rv = NS_OK;
// make sure that when we allocate we have 1 greater than the
// count since we need to null terminate the list for the argv to
// pass into PR_CreateProcess
char **my_argv = NULL;
my_argv = (char **)malloc(sizeof(char *) * (count + 2) );
if (!my_argv) {
return NS_ERROR_OUT_OF_MEMORY;
}
// copy the args
PRUint32 i;
for (i=0; i < count; i++) {
my_argv[i+1] = NS_CONST_CAST(char*, args[i]);
}
// we need to set argv[0] to the program name.
my_argv[0] = NS_CONST_CAST(char*, mTargetPath.get());
// null terminate the array
my_argv[count+1] = NULL;
if (blocking)
{
mProcess = PR_CreateProcess(mTargetPath, my_argv, NULL, NULL);
if (mProcess)
rv = PR_WaitProcess(mProcess, &mExitValue);
}
else
rv = PR_CreateProcessDetached(mTargetPath, my_argv, NULL, NULL);
// free up our argv
nsMemory::Free(my_argv);
if (rv != PR_SUCCESS)
return NS_ERROR_FILE_EXECUTION_FAILED;
return NS_OK;
}
NS_IMETHODIMP nsProcess::InitWithPid(PRUint32 pid)
{
return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP
nsProcess::GetLocation(nsIFile** aLocation)
{
return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP
nsProcess::GetPid(PRUint32 *aPid)
{
return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP
nsProcess::GetProcessName(char** aProcessName)
{
return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP
nsProcess::GetProcessSignature(PRUint32 *aProcessSignature)
{
return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP
nsProcess::Kill()
{
nsresult rv = NS_OK;
if (mProcess)
rv = PR_KillProcess(mProcess);
return rv;
}
NS_IMETHODIMP
nsProcess::GetExitValue(PRInt32 *aExitValue)
{
*aExitValue = mExitValue;
return NS_OK;
}