?? unixwareplatformutils.cpp
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if(ferror((FILE*) theFile)) { ThrowXMLwithMemMgr(XMLPlatformUtilsException, XMLExcepts::File_CouldNotReadFromFile, manager); } return (unsigned int) noOfItemsRead;}voidXMLPlatformUtils::writeBufferToFile( FileHandle const theFile , long toWrite , const XMLByte* const toFlush , MemoryManager* const manager){ if (!theFile || (toWrite <= 0 ) || !toFlush ) return; const XMLByte* tmpFlush = (const XMLByte*) toFlush; size_t bytesWritten = 0; while (true) { bytesWritten=fwrite(tmpFlush, sizeof(XMLByte), toWrite, (FILE*)theFile); if(ferror((FILE*)theFile)) { ThrowXMLwithMemMgr(XMLPlatformUtilsException, XMLExcepts::File_CouldNotWriteToFile, manager); } if (bytesWritten < toWrite) //incomplete write { tmpFlush+=bytesWritten; toWrite-=bytesWritten; bytesWritten=0; } else return; } return;}void XMLPlatformUtils::resetFile(FileHandle theFile , MemoryManager* const manager){ // Seek to the start of the file if (fseek((FILE*) theFile, 0, SEEK_SET)) ThrowXMLwithMemMgr(XMLPlatformUtilsException, XMLExcepts::File_CouldNotResetFile, manager);}// ---------------------------------------------------------------------------// XMLPlatformUtils: File system methods// ---------------------------------------------------------------------------XMLCh* XMLPlatformUtils::getFullPath(const XMLCh* const srcPath, MemoryManager* const manager){ // // NOTE: The path provided has always already been opened successfully, // so we know that its not some pathological freaky path. It comes in // in native format, and goes out as Unicode always // char* newSrc = XMLString::transcode(srcPath, manager); ArrayJanitor<char> janText(newSrc, manager); // Use a local buffer that is big enough for the largest legal path char absPath[PATH_MAX + 1]; //get the absolute path char* retPath = realpath(newSrc, &absPath[0]); if (!retPath) { ThrowXMLwithMemMgr(XMLPlatformUtilsException, XMLExcepts::File_CouldNotGetBasePathName, manager); } return XMLString::transcode(absPath, manager);}bool XMLPlatformUtils::isRelative(const XMLCh* const toCheck , MemoryManager* const manager){ // Check for pathological case of empty path if (!toCheck[0]) return false; // // If it starts with a slash, then it cannot be relative. This covers // both something like "\Test\File.xml" and an NT Lan type remote path // that starts with a node like "\\MyNode\Test\File.xml". // if (toCheck[0] == XMLCh('/')) return false; // Else assume its a relative path return true;}XMLCh* XMLPlatformUtils::getCurrentDirectory(MemoryManager* const manager){ char dirBuf[PATH_MAX + 2]; char *curDir = getcwd(&dirBuf[0], PATH_MAX + 1); if (!curDir) { ThrowXMLwithMemMgr(XMLPlatformUtilsException, XMLExcepts::File_CouldNotGetBasePathName, manager); } return XMLString::transcode(curDir, manager);}inline bool XMLPlatformUtils::isAnySlash(XMLCh c) { return ( chBackSlash == c || chForwardSlash == c);}// ---------------------------------------------------------------------------// XMLPlatformUtils: Timing Methods// ---------------------------------------------------------------------------unsigned long XMLPlatformUtils::getCurrentMillis(){ timeb aTime; ftime(&aTime); return (unsigned long)(aTime.time*1000 + aTime.millitm);}// -----------------------------------------------------------------------// Mutex methods// -----------------------------------------------------------------------#if !defined (APP_NO_THREADS)// ---------------------------------------------------------------------------// XMLPlatformUtils: Platform init method// ---------------------------------------------------------------------------static pthread_mutex_t* gAtomicOpMutex =0 ;void XMLPlatformUtils::platformInit(){ // // The gAtomicOpMutex mutex needs to be created // because compareAndSwap, atomicIncrement and atomicDecrement // does not have the atomic system calls for usage // Normally, mutexes are created on first use, but there is a // circular dependency between compareAndExchange() and // mutex creation that must be broken. gAtomicOpMutex = new pthread_mutex_t; if (pthread_mutex_init(gAtomicOpMutex, NULL)) panic( PanicHandler::Panic_SystemInit );}class RecursiveMutex : public XMemory{public: pthread_mutex_t mutex; int recursionCount; pthread_t tid; RecursiveMutex() { if (pthread_mutex_init(&mutex, NULL)) ThrowXMLwithMemMgr(XMLPlatformUtilsException, XMLExcepts::Mutex_CouldNotCreate, XMLPlatformUtils::fgMemoryManager); recursionCount = 0; tid = 0; } ~RecursiveMutex() { if (pthread_mutex_destroy(&mutex)) ThrowXMLwithMemMgr(XMLPlatformUtilsException, XMLExcepts::Mutex_CouldNotDestroy, XMLPlatformUtils::fgMemoryManager); } void lock() { if (pthread_equal(tid, pthread_self())) { recursionCount++; return; } if (pthread_mutex_lock(&mutex) != 0) ThrowXMLwithMemMgr(XMLPlatformUtilsException, XMLExcepts::Mutex_CouldNotLock, XMLPlatformUtils::fgMemoryManager); tid = pthread_self(); recursionCount = 1; } void unlock() { if (--recursionCount > 0) return; if (pthread_mutex_unlock(&mutex) != 0) ThrowXMLwithMemMgr(XMLPlatformUtilsException, XMLExcepts::Mutex_CouldNotUnlock, XMLPlatformUtils::fgMemoryManager); tid = 0; }};void* XMLPlatformUtils::makeMutex(){ return new RecursiveMutex;}void XMLPlatformUtils::closeMutex(void* const mtxHandle){ if (mtxHandle == NULL) return; RecursiveMutex *rm = (RecursiveMutex *)mtxHandle; delete rm;}void XMLPlatformUtils::lockMutex(void* const mtxHandle){ if (mtxHandle == NULL) return; RecursiveMutex *rm = (RecursiveMutex *)mtxHandle; rm->lock();}void XMLPlatformUtils::unlockMutex(void* const mtxHandle){ if (mtxHandle == NULL) return; RecursiveMutex *rm = (RecursiveMutex *)mtxHandle; rm->unlock();}// -----------------------------------------------------------------------// Miscellaneous synchronization methods// -----------------------------------------------------------------------//atomic system calls in UnixWare is only restricted to kernel libraries//So, to make operations thread safe we implement static mutex and lock//the atomic operations. It makes the process slow but what's the alternative!void* XMLPlatformUtils::compareAndSwap ( void** toFill , const void* const newValue , const void* const toCompare){ if (pthread_mutex_lock( gAtomicOpMutex)) panic(PanicHandler::Panic_SynchronizationErr); void *retVal = *toFill; if (*toFill == toCompare) *toFill = (void *)newValue; if (pthread_mutex_unlock( gAtomicOpMutex)) panic(PanicHandler::Panic_SynchronizationErr); return retVal;}int XMLPlatformUtils::atomicIncrement(int &location){ if (pthread_mutex_lock( gAtomicOpMutex)) panic(PanicHandler::Panic_SynchronizationErr); int tmp = ++location; if (pthread_mutex_unlock( gAtomicOpMutex)) panic(PanicHandler::Panic_SynchronizationErr); return tmp;}int XMLPlatformUtils::atomicDecrement(int &location){ if (pthread_mutex_lock( gAtomicOpMutex)) panic(PanicHandler::Panic_SynchronizationErr); int tmp = --location; if (pthread_mutex_unlock( gAtomicOpMutex)) panic(PanicHandler::Panic_SynchronizationErr); return tmp;}#else // #if !defined (APP_NO_THREADS)void XMLPlatformUtils::platformInit(){}void* XMLPlatformUtils::makeMutex(){ return 0;}void XMLPlatformUtils::closeMutex(void* const mtxHandle){}void XMLPlatformUtils::lockMutex(void* const mtxHandle){}void XMLPlatformUtils::unlockMutex(void* const mtxHandle){}void* XMLPlatformUtils::compareAndSwap ( void** toFill, const void* const newValue, const void* const toCompare){ void *retVal = *toFill; if (*toFill == toCompare) *toFill = (void *)newValue; return retVal;}int XMLPlatformUtils::atomicIncrement(int &location){ return ++location;}int XMLPlatformUtils::atomicDecrement(int &location){ return --location;}#endif // APP_NO_THREADSvoid XMLPlatformUtils::platformTerm(){#if !defined (APP_NO_THREADS) // delete the mutex we created pthread_mutex_destroy(gAtomicOpMutex); delete gAtomicOpMutex; gAtomicOpMutex = 0;#endif}#include <xercesc/util/LogicalPath.c>XERCES_CPP_NAMESPACE_END
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