/** * @file llcrashlock.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