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Diff for /pegasus/src/Pegasus/Common/TraceFileHandlerPOSIX.cpp between version 1.1 and 1.2

version 1.1, 2006/07/30 16:50:28 version 1.2, 2006/08/09 21:12:42
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   //%2006////////////////////////////////////////////////////////////////////////
   //
   // Copyright (c) 2000, 2001, 2002 BMC Software; Hewlett-Packard Development
   // Company, L.P.; IBM Corp.; The Open Group; Tivoli Systems.
   // Copyright (c) 2003 BMC Software; Hewlett-Packard Development Company, L.P.;
   // IBM Corp.; EMC Corporation, The Open Group.
   // Copyright (c) 2004 BMC Software; Hewlett-Packard Development Company, L.P.;
   // IBM Corp.; EMC Corporation; VERITAS Software Corporation; The Open Group.
   // Copyright (c) 2005 Hewlett-Packard Development Company, L.P.; IBM Corp.;
   // EMC Corporation; VERITAS Software Corporation; The Open Group.
   // Copyright (c) 2006 Hewlett-Packard Development Company, L.P.; IBM Corp.;
   // EMC Corporation; Symantec Corporation; The Open Group.
   //
   // Permission is hereby granted, free of charge, to any person obtaining a copy
   // of this software and associated documentation files (the "Software"), to
   // deal in the Software without restriction, including without limitation the
   // rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
   // sell copies of the Software, and to permit persons to whom the Software is
   // furnished to do so, subject to the following conditions:
   //
   // THE ABOVE COPYRIGHT NOTICE AND THIS PERMISSION NOTICE SHALL BE INCLUDED IN
   // ALL COPIES OR SUBSTANTIAL PORTIONS OF THE SOFTWARE. THE SOFTWARE IS PROVIDED
   // "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT
   // LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
   // PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
   // HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
   // ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
   // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
   //
   //==============================================================================
   //
   // Author: Sushma Fernandes, Hewlett-Packard Company (sushma_fernandes@hp.com)
   //
   // Modified By: Amit K Arora, IBM (amita@in.ibm.com) for Bug#1527
   //              Roger Kumpf, Hewlett-Packard Company (roger_kumpf@hp.com)
   //              David Dillard, VERITAS Software Corp.
   //                  (david.dillard@veritas.com)
   //
   //%/////////////////////////////////////////////////////////////////////////////
   
   #if defined(PEGASUS_OS_VMS)
   # include <fcntl.h>
   #endif
   #include <Pegasus/Common/Logger.h>
   #include <Pegasus/Common/System.h>
   #include <Pegasus/Common/TraceFileHandler.h>
   #include <Pegasus/Common/Mutex.h>
   
   PEGASUS_USING_STD;
   
   PEGASUS_NAMESPACE_BEGIN static Mutex writeMutex;
   
   ///////////////////////////////////////////////////////////////////////////////
   //  Writes message to file. Locks the file before writing to it
   //  Implementation of this function is platform specific
   ///////////////////////////////////////////////////////////////////////////////
   
   #if defined(PEGASUS_OS_VMS)
   
   void TraceFileHandler::handleMessage(
       const char *message,
       const char *fmt, va_list argList)
   {
       Sint32 retCode;
       Sint32 fileDesc;
   
       // Do not add Trace calls in the Critical section
       // ---- BEGIN CRITICAL SECTION
   
       // Check if the file has been deleted, if so re-open the file and
       // continue
       if (!System::exists(_fileName))
       {
           if (_fileHandle == 0)
           {
               _fileHandle = fopen(_fileName, "a+", "shr=get,put,upd");
               // _fileHandle = fopen(_fileName,"a","shr=get");
           }
           else
           {
               _fileHandle =
                   freopen(_fileName, "a+", _fileHandle, "shr=get,put,upd");
               // _fileHandle = freopen(_fileName,"a",_fileHandle,"shr=get");
           }
           if (!_fileHandle)
           {
               // Unable to re-open file, log a message
   
               Logger::put_l(Logger::DEBUG_LOG, System::CIMSERVER,
                             Logger::WARNING,
                             "Common.TraceFileHandlerVms.FAILED_TO_OPEN_FILE",
                             "Failed to open File $0", _fileName);
               return;
           }
   
           // Set permissions on the trace file to 0400
   
           if (!FileSystem::
               changeFilePermissions(String(_fileName), (S_IRUSR | S_IWUSR)))
           {
               Logger::put_l(Logger::DEBUG_LOG, "Tracer", Logger::WARNING,
                             "Common.TraceFileHandlerVms.FAILED_TO_SET_FILE_PERMISSIONS",
                             "Failed to set permissions on file $0", _fileName);
               return;
           }
       }
   
       // Seek to the end of File
   
       retCode = fseek(_fileHandle, 0, SEEK_END);
   
       // Write the message to the file
   
       retCode = fprintf(_fileHandle, "%s", message);
       retCode = vfprintf(_fileHandle, fmt, argList);
       retCode = fprintf(_fileHandle, "\n");
       retCode = fflush(_fileHandle);
       fileDesc = fileno(_fileHandle);
       retCode = fsync(fileDesc);
       _wroteToLog = false;
       // retCode = fclose(_fileHandle);
       // _fileHandle = 0;
   
       // ---- END CRITICAL SECTION
   
       return;
   }
   
   #else /* PEGASUS_OS_VMS */
   
   void TraceFileHandler::handleMessage(
       const char *message,
       const char *fmt, va_list argList)
   {
       if (!_fileHandle)
       {
           // The trace file is not open, which means an earlier fopen() was
           // unsuccessful.  Stop now to avoid logging duplicate error messages.
           return;
       }
   
       // Do not add Trace calls in the Critical section
       // ---- BEGIN CRITICAL SECTION
       AutoMutex writeLock(writeMutex);
   
       // If the file has been deleted, re-open it and continue
       if (!System::exists(_fileName))
       {
           fclose(_fileHandle);
           _fileHandle = _openFile(_fileName);
           if (!_fileHandle)
           {
               return;
           }
       }
   
       // Got the Lock on the File. Seek to the end of File
       fseek(_fileHandle, 0, SEEK_END);
   # ifdef PEGASUS_PLATFORM_LINUX_GENERIC_GNU
       long pos = ftell(_fileHandle);
       // Check if the file size is approaching 2GB - which is the
       // maximum size a file on 32 bit Linux can grow (ofcourse if
       // not using large-files option). If this is not checked, the
       // cimserver may get a SIGXFSZ signal and shutdown. See Bug#1527.
       if (pos >= 0x7ff00000)
       {
           // If the file size is almost 2 GB in size, close this trace
           // file and open a new trace file which would have _fileCount
           // as the suffix. So, if "cimserver.trc" is the trace file that
           // approaches 2GB, the next file which gets created would be
           // named "cimserver.trc.1" and so on ...
           fclose(_fileHandle);
           sprintf(_fileName, "%s.%u", _baseFileName, ++_fileCount);
           _fileHandle = fopen(_fileName, "a+");
           if (!_fileHandle)
           {
               // Unable to open file, log a message
               if (!_wroteToLog)
               {
                   Logger::put_l(Logger::DEBUG_LOG, "Tracer", Logger::WARNING,
                                 "Common.TraceFileHandler.FAILED_TO_OPEN_FILE",
                                 "Failed to open File $0", _fileName);
                   _wroteToLog = true;
               }
               return;
           }
       }
   # endif
   
       // Write the message to the file
       fprintf(_fileHandle, "%s", message);
       vfprintf(_fileHandle, fmt, argList);
       fprintf(_fileHandle, "\n");
       fflush(_fileHandle);
   }
   
   #endif /* !PEGASUS_OS_VMS */
   
   PEGASUS_NAMESPACE_END

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