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/**
* @file llpidlock.h
* @brief Maintainence of disk locking files for crash reporting
*
* $LicenseInfo:firstyear=2001&license=viewerlgpl$
* Second Life Viewer Source Code
* Copyright (C) 2010, Linden Research, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation;
* version 2.1 of the License only.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
* Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA
* $/LicenseInfo$
*/
#ifndef LL_CRASHLOCK_H
#define LL_CRASHLOCK_H
#include "llframetimer.h"
class LLSD;
#if !LL_WINDOWS //For non-windows platforms.
#include <signal.h>
#endif
//Crash reporter will now be kicked off by the viewer but otherwise
//run independent of the viewer.
class LLCrashLock
{
public:
LLCrashLock();
bool requestMaster( F32 timeout=300.0); //Wait until timeout for master lock.
bool checkMaster(); //True if available. False if not.
void releaseMaster( ); //Release master lockfile.
bool isLockPresent(std::string filename); //Check if lockfile exists.
bool isProcessAlive(U32 pid, const std::string& pname); //Check if pid is alive.
bool isWaiting(); //Waiting for master lock to be released.
LLSD getProcessList(); //Get next process pid/dir pairs
void cleanupProcess(std::string proc_dir); //Remove from list, clean up working dir.
bool putProcessList(const LLSD& processlist); //Write pid/dir pairs back to disk.
static bool fileExists(std::string filename);
//getters
S32 getPID();
//setters
void setCleanUp(bool cleanup=true);
void setSaveName(std::string savename);
private:
LLSD getLockFile(std::string filename);
bool putLockFile(std::string filename, const LLSD& data);
bool mCleanUp;
std::string mMaster;
std::string mDumpTable;
U32 mWaitingPID; //The process we're waiting on if any.
LLFrameTimer mTimer;
};
#endif // LL_CRASHLOCK_H
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