common.c revision 99faa045b6241c1d2843cce1b7a9d9c97055beae
/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (the "License"). You may not use this file except in compliance
* with the License.
*
* You can obtain a copy of the license at
* trunk/opends/resource/legal-notices/OpenDS.LICENSE
* or https://OpenDS.dev.java.net/OpenDS.LICENSE.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at
* trunk/opends/resource/legal-notices/OpenDS.LICENSE. If applicable,
* add the following below this CDDL HEADER, with the fields enclosed
* by brackets "[]" replaced with your own identifying * information:
* Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*
*
* Portions Copyright 2007 Sun Microsystems, Inc.
*/
#include "common.h"
// ----------------------------------------------------
// Function used to create a process with the given command.
// The information about the process is stored in procInfo.
// The function returns TRUE if the process could be created
// and FALSE otherwise.
// ----------------------------------------------------
BOOL createChildProcess(char* command, BOOL background,
PROCESS_INFORMATION* procInfo)
{
BOOL createOk;
STARTUPINFO startInfo; // info to pass to the new process
DWORD processFlag; // background process flag
// reset process info first
ZeroMemory(procInfo, sizeof(PROCESS_INFORMATION));
// initialize handles to pass to the child process
ZeroMemory(&startInfo, sizeof(STARTUPINFO));
startInfo.cb = sizeof(STARTUPINFO);
startInfo.dwFlags |= STARTF_USESTDHANDLES; // use handles above
// Create the child process
processFlag = background == TRUE ? DETACHED_PROCESS : 0;
createOk = CreateProcess(
NULL, // application name
command, // command line
NULL, // process security attributes
NULL, // primary thread security attributes
TRUE, // handles are inherited
processFlag, // creation flags
NULL, // use parent's environment
NULL, // use parent's current directory
&startInfo, // STARTUPINFO pointer
procInfo // receives PROCESS_INFORMATION
);
return createOk;
} // createChildProcess
// ----------------------------------------------------
// Function used to launch a process for the given command
// If the process could be created it returns the pid of
// the created process and -1 otherwise.
// ----------------------------------------------------
int spawn(const char* command, BOOL background)
{
DWORD childPid; // child's pid
PROCESS_INFORMATION procInfo; // info on the new process
BOOL createOk;
createOk = createChildProcess((char*)command, background, &procInfo);
if(createOk)
{
childPid = procInfo.dwProcessId;
}
if (childPid != -1)
{
return childPid;
}
else
{
return -1;
}
} // spawn