diff options
Diffstat (limited to 'indra')
| -rwxr-xr-x | indra/llcommon/CMakeLists.txt | 2 | ||||
| -rw-r--r-- | indra/llcommon/llnametable.h | 105 | ||||
| -rw-r--r-- | indra/llcommon/string_table.h | 26 | ||||
| -rwxr-xr-x | indra/llvfs/CMakeLists.txt | 2 | ||||
| -rw-r--r-- | indra/llvfs/llpidlock.cpp | 275 | ||||
| -rw-r--r-- | indra/llvfs/llpidlock.h | 60 |
6 files changed, 469 insertions, 1 deletions
diff --git a/indra/llcommon/CMakeLists.txt b/indra/llcommon/CMakeLists.txt index cc54524320..5856e06b67 100755 --- a/indra/llcommon/CMakeLists.txt +++ b/indra/llcommon/CMakeLists.txt @@ -174,7 +174,7 @@ set(llcommon_HEADER_FILES llmetrics.h llmetricperformancetester.h llmortician.h - llmutex.h + llnametable.h llpointer.h llpredicate.h llpreprocessor.h diff --git a/indra/llcommon/llnametable.h b/indra/llcommon/llnametable.h new file mode 100644 index 0000000000..d3283543f3 --- /dev/null +++ b/indra/llcommon/llnametable.h @@ -0,0 +1,105 @@ +/** + * @file llnametable.h + * @brief LLNameTable class is a table to associate pointers with string names + * + * $LicenseInfo:firstyear=2000&license=viewerlgpl$ + * 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_LLNAMETABLE_H +#define LL_LLNAMETABLE_H + +#include <map> + +#include "string_table.h" + +template <class DATA> +class LLNameTable +{ +public: + LLNameTable() + : mNameMap() + { + } + + ~LLNameTable() + { + } + + void addEntry(const std::string& name, DATA data) + { + addEntry(name.c_str(), data); + } + + void addEntry(const char *name, DATA data) + { + char *tablename = gStringTable.addString(name); + mNameMap[tablename] = data; + } + + BOOL checkName(const std::string& name) const + { + return checkName(name.c_str()); + } + + // "logically const" even though it modifies the global nametable + BOOL checkName(const char *name) const + { + char *tablename = gStringTable.addString(name); + return mNameMap.count(tablename) ? TRUE : FALSE; + } + + DATA resolveName(const std::string& name) const + { + return resolveName(name.c_str()); + } + + // "logically const" even though it modifies the global nametable + DATA resolveName(const char *name) const + { + char *tablename = gStringTable.addString(name); + const_iter_t iter = mNameMap.find(tablename); + if (iter != mNameMap.end()) + return iter->second; + else + return 0; + } + + // O(N)! (currently only used in one place... (newsim/llstate.cpp)) + const char *resolveData(const DATA &data) const + { + const_iter_t iter = mNameMap.begin(); + const_iter_t end = mNameMap.end(); + for (; iter != end; ++iter) + { + if (iter->second == data) + return iter->first; + } + return NULL; + } + + typedef std::map<const char *, DATA> name_map_t; + typedef typename std::map<const char *,DATA>::iterator iter_t; + typedef typename std::map<const char *,DATA>::const_iterator const_iter_t; + name_map_t mNameMap; +}; + +#endif diff --git a/indra/llcommon/string_table.h b/indra/llcommon/string_table.h new file mode 100644 index 0000000000..fe6416fb50 --- /dev/null +++ b/indra/llcommon/string_table.h @@ -0,0 +1,26 @@ +/** + * @file string_table.h + * @brief Legacy wrapper header. + * + * $LicenseInfo:firstyear=2000&license=viewerlgpl$ + * 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 + * $/LicenseInfo$ + */ +#include "llstringtable.h" diff --git a/indra/llvfs/CMakeLists.txt b/indra/llvfs/CMakeLists.txt index f19fdf4890..67dce8c073 100755 --- a/indra/llvfs/CMakeLists.txt +++ b/indra/llvfs/CMakeLists.txt @@ -15,6 +15,7 @@ set(llvfs_SOURCE_FILES lldir.cpp lldiriterator.cpp lllfsthread.cpp + llpidlock.cpp llvfile.cpp llvfs.cpp llvfsthread.cpp @@ -27,6 +28,7 @@ set(llvfs_HEADER_FILES lldirguard.h lldiriterator.h lllfsthread.h + llpidlock.h llvfile.h llvfs.h llvfsthread.h diff --git a/indra/llvfs/llpidlock.cpp b/indra/llvfs/llpidlock.cpp new file mode 100644 index 0000000000..e64368e8d7 --- /dev/null +++ b/indra/llvfs/llpidlock.cpp @@ -0,0 +1,275 @@ +/** + * @file llformat.cpp + * @date January 2007 + * @brief string formatting utility + * + * $LicenseInfo:firstyear=2007&license=viewerlgpl$ + * 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 + * $/LicenseInfo$ + */ + +#include "linden_common.h" + +#include "llpidlock.h" +#include "lldir.h" +#include "llsd.h" +#include "llsdserialize.h" +#include "llnametable.h" +#include "llframetimer.h" + +#if LL_WINDOWS //For windows platform. + +#include <windows.h> + +bool isProcessAlive(U32 pid) +{ + return (bool) GetProcessVersion((DWORD)pid); +} + +#else //Everyone Else +bool isProcessAlive(U32 pid) +{ + return (bool) kill( (pid_t)pid, 0); +} +#endif //Everyone else. + + + +class LLPidLockFile +{ + public: + LLPidLockFile( ) : + mAutosave(false), + mSaving(false), + mWaiting(false), + mPID(getpid()), + mNameTable(NULL), + mClean(true) + { + mLockName = gDirUtilp->getTempDir() + gDirUtilp->getDirDelimiter() + "savelock"; + } + bool requestLock(LLNameTable<void *> *name_table, bool autosave, + bool force_immediate=FALSE, F32 timeout=300.0); + bool checkLock(); + void releaseLock(); + + private: + void writeLockFile(LLSD pids); + public: + static LLPidLockFile& instance(); // return the singleton black list file + + bool mAutosave; + bool mSaving; + bool mWaiting; + LLFrameTimer mTimer; + U32 mPID; + std::string mLockName; + std::string mSaveName; + LLSD mPIDS_sd; + LLNameTable<void*> *mNameTable; + bool mClean; +}; + +LLPidLockFile& LLPidLockFile::instance() +{ + static LLPidLockFile the_file; + return the_file; +} + +void LLPidLockFile::writeLockFile(LLSD pids) +{ + llofstream ofile(mLockName); + + if (!LLSDSerialize::toXML(pids,ofile)) + { + LL_WARNS() << "Unable to write concurrent save lock file." << LL_ENDL; + } + ofile.close(); +} + +bool LLPidLockFile::requestLock(LLNameTable<void *> *name_table, bool autosave, + bool force_immediate, F32 timeout) +{ + bool readyToSave = FALSE; + + if (mSaving) return FALSE; //Bail out if we're currently saving. Will not queue another save. + + if (!mWaiting){ + mNameTable=name_table; + mAutosave = autosave; + } + + LLSD out_pids; + out_pids.append( (LLSD::Integer)mPID ); + + llifstream ifile(mLockName); + + if (ifile.is_open()) + { //If file exists, we need to decide whether or not to continue. + if ( force_immediate + || mTimer.hasExpired() ) //Only deserialize if we REALLY need to. + { + + LLSD in_pids; + + LLSDSerialize::fromXML(in_pids, ifile); + + //Clean up any dead PIDS that might be in there. + for (LLSD::array_iterator i=in_pids.beginArray(); + i !=in_pids.endArray(); + ++i) + { + U32 stored_pid=(*i).asInteger(); + + if (isProcessAlive(stored_pid)) + { + out_pids.append( (*i) ); + } + } + + readyToSave=TRUE; + } + ifile.close(); + } + else + { + readyToSave=TRUE; + } + + if (!mWaiting) //Not presently waiting to save. Queue up. + { + mTimer.resetWithExpiry(timeout); + mWaiting=TRUE; + } + + if (readyToSave) + { //Potential race condition won't kill us. Ignore it. + writeLockFile(out_pids); + mSaving=TRUE; + } + + return readyToSave; +} + +bool LLPidLockFile::checkLock() +{ + return mWaiting; +} + +void LLPidLockFile::releaseLock() +{ + llifstream ifile(mLockName); + LLSD in_pids; + LLSD out_pids; + bool write_file=FALSE; + + LLSDSerialize::fromXML(in_pids, ifile); + + //Clean up this PID and any dead ones. + for (LLSD::array_iterator i=in_pids.beginArray(); + i !=in_pids.endArray(); + ++i) + { + U32 stored_pid=(*i).asInteger(); + + if (stored_pid != mPID && isProcessAlive(stored_pid)) + { + out_pids.append( (*i) ); + write_file=TRUE; + } + } + ifile.close(); + + if (write_file) + { + writeLockFile(out_pids); + } + else + { + unlink(mLockName.c_str()); + } + + mSaving=FALSE; + mWaiting=FALSE; +} + +//LLPidLock + +void LLPidLock::initClass() { + (void) LLPidLockFile::instance(); +} + +bool LLPidLock::checkLock() +{ + return LLPidLockFile::instance().checkLock(); +} + +bool LLPidLock::requestLock(LLNameTable<void *> *name_table, bool autosave, + bool force_immediate, F32 timeout) +{ + return LLPidLockFile::instance().requestLock(name_table,autosave,force_immediate,timeout); +} + +void LLPidLock::releaseLock() +{ + return LLPidLockFile::instance().releaseLock(); +} + +bool LLPidLock::isClean() +{ + return LLPidLockFile::instance().mClean; +} + +//getters +LLNameTable<void *> * LLPidLock::getNameTable() +{ + return LLPidLockFile::instance().mNameTable; +} + +bool LLPidLock::getAutosave() +{ + return LLPidLockFile::instance().mAutosave; +} + +bool LLPidLock::getClean() +{ + return LLPidLockFile::instance().mClean; +} + +std::string LLPidLock::getSaveName() +{ + return LLPidLockFile::instance().mSaveName; +} + +//setters +void LLPidLock::setClean(bool clean) +{ + LLPidLockFile::instance().mClean=clean; +} + +void LLPidLock::setSaveName(std::string savename) +{ + LLPidLockFile::instance().mSaveName=savename; +} + +S32 LLPidLock::getPID() +{ + return (S32)getpid(); +} diff --git a/indra/llvfs/llpidlock.h b/indra/llvfs/llpidlock.h new file mode 100644 index 0000000000..334f26bb29 --- /dev/null +++ b/indra/llvfs/llpidlock.h @@ -0,0 +1,60 @@ +/** + * @file llpidlock.h + * @brief System information debugging classes. + * + * $LicenseInfo:firstyear=2001&license=viewerlgpl$ + * 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_PIDLOCK_H +#define LL_PIDLOCK_H +#include "llnametable.h" + +class LLSD; +class LLFrameTimer; + +#if !LL_WINDOWS //For non-windows platforms. +#include <signal.h> +#endif + +namespace LLPidLock +{ + void initClass(); // { (void) LLPidLockFile::instance(); } + + bool requestLock( LLNameTable<void *> *name_table=NULL, bool autosave=TRUE, + bool force_immediate=FALSE, F32 timeout=300.0); + bool checkLock(); + void releaseLock(); + bool isClean(); + + //getters + LLNameTable<void *> * getNameTable(); + bool getAutosave(); + bool getClean(); + std::string getSaveName(); + S32 getPID(); + + //setters + void setClean(bool clean); + void setSaveName(std::string savename); +}; + +#endif // LL_PIDLOCK_H |