(file) Return to TraceFileHandlerUnix.cpp CVS log (file) (dir) Up to [Pegasus] / pegasus / src / Pegasus / Common

File: [Pegasus] / pegasus / src / Pegasus / Common / Attic / TraceFileHandlerUnix.cpp (download)
Revision: 1.18, Wed Aug 9 20:12:42 2006 UTC (17 years, 10 months ago) by mike
Branch: MAIN
CVS Tags: TASK-PEP362_RestfulService-merged_out_from_trunk, TASK-PEP348_SCMO-merged_out_from_trunk, TASK-PEP317_pullop-merged_out_from_trunk, TASK-PEP317_pullop-merged_in_to_trunk, TASK-PEP311_WSMan-root, TASK-PEP311_WSMan-branch, HPUX_TEST, HEAD
Changes since 1.17: +0 -0 lines
FILE REMOVED
BUG#: 5314
TITLE: IPC Refactoring

DESCRIPTION: This patch cleans up the IPC related classes. It (1) reorganizes
related classes into their own headers, (2) makes the mutex class recursive to
eliminate recursive lock exclusion logic, (3) reimplements condition variables,
renames dozens of global functions.

//%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)
//
//%/////////////////////////////////////////////////////////////////////////////


#include <Pegasus/Common/Logger.h>
#include <Pegasus/Common/System.h>
#include <Pegasus/Common/IPC.h>
#include <Pegasus/Common/TraceFileHandler.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
///////////////////////////////////////////////////////////////////////////////
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);
}

PEGASUS_NAMESPACE_END

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