netbsdplatformutils.cpp

来自「IBM的解析xml的工具Xerces的源代码」· C++ 代码 · 共 636 行 · 第 1/2 页

/*
 * Copyright 1999-2004 The Apache Software Foundation.
 * 
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 *      http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

/*
 * 
 *
 */


// ---------------------------------------------------------------------------
//  Includes
// ---------------------------------------------------------------------------

#if !defined(APP_NO_THREADS)
#include    <pthread.h>
#endif

/* #ifndef __USE_UNIX98
    #error __USE_UNIX98 is not defined in your compile settings
#endif */

#include    <unistd.h>
#include    <stdio.h>
#include    <stdlib.h>
#include    <errno.h>
#include    <libgen.h>
#include    <sys/time.h>
#include    <string.h>
#include    <strings.h>/* for strcasecmp & strncasecmp */
#include    <wchar.h>  /* for win_t */
#include    <xercesc/util/PlatformUtils.hpp>
#include    <xercesc/util/RuntimeException.hpp>
#include    <xercesc/util/Janitor.hpp>
#include    <xercesc/util/Mutexes.hpp>
#include    <xercesc/util/XMLString.hpp>
#include    <xercesc/util/XMLUniDefs.hpp>
#include    <xercesc/util/XMLUni.hpp>
#include    <xercesc/util/PanicHandler.hpp>
#include    <xercesc/util/OutOfMemoryException.hpp>

#if defined(XML_USE_ICU_TRANSCODER)
    #include <xercesc/util/Transcoders/ICU/ICUTransService.hpp>
#else
    // Use native transcoder. Same as -DXML_USE_NATIVE_TRANSCODER
    #include <xercesc/util/Transcoders/Iconv/IconvTransService.hpp>
#endif


#if defined(XML_USE_ICU_MESSAGELOADER)
    #include <xercesc/util/MsgLoaders/ICU/ICUMsgLoader.hpp>
#else
    // Same as -DXML_USE_INMEM_MESSAGELOADER
    #include <xercesc/util/MsgLoaders/InMemory/InMemMsgLoader.hpp>
#endif


#if defined (XML_USE_NETACCESSOR_SOCKET)
    #include <xercesc/util/NetAccessors/Socket/SocketNetAccessor.hpp>
#endif

XERCES_CPP_NAMESPACE_BEGIN

// ---------------------------------------------------------------------------
//  Local Methods
// ---------------------------------------------------------------------------

static void WriteCharStr( FILE* stream, const char* const toWrite)
{
    if (fputs(toWrite, stream) == EOF)
    {
        ThrowXML(XMLPlatformUtilsException,
                 XMLExcepts::Strm_StdErrWriteFailure);
    }
}

static void WriteUStrStdErr( const XMLCh* const toWrite)
{
    char* tmpVal = XMLString::transcode(toWrite, XMLPlatformUtils::fgMemoryManager);
    ArrayJanitor<char> janText(tmpVal, XMLPlatformUtils::fgMemoryManager);
    if (fputs(tmpVal, stderr) == EOF)
    {
       ThrowXML(XMLPlatformUtilsException,
                XMLExcepts::Strm_StdErrWriteFailure);
   }
}

static void WriteUStrStdOut( const XMLCh* const toWrite)
 {
    char* tmpVal = XMLString::transcode(toWrite, XMLPlatformUtils::fgMemoryManager);
    ArrayJanitor<char> janText(tmpVal, XMLPlatformUtils::fgMemoryManager);
    if (fputs(tmpVal, stdout) == EOF)
    {
        ThrowXML(XMLPlatformUtilsException,
                 XMLExcepts::Strm_StdOutWriteFailure);
    }
}

XMLNetAccessor* XMLPlatformUtils::makeNetAccessor()
{
#if defined (XML_USE_NETACCESSOR_SOCKET)
    return new SocketNetAccessor();
#else
    return 0;
#endif
}

// ---------------------------------------------------------------------------
//  XMLPlatformUtils: Private Static Methods
// ---------------------------------------------------------------------------

//
//  This method is called by the platform independent part of this class
//  when client code asks to have one of the supported message sets loaded.
//

XMLMsgLoader* XMLPlatformUtils::loadAMsgSet(const XMLCh* const msgDomain)
{
    XMLMsgLoader* retVal;
    try
    {
#if defined (XML_USE_ICU_MESSAGELOADER)
        retVal = new ICUMsgLoader(msgDomain);
#else
        // same as -DXML_USE_INMEM_MESSAGELOADER
        retVal = new InMemMsgLoader(msgDomain);
#endif
    }
    catch(const OutOfMemoryException&)
    {
        throw;
    }
    catch(...)
    {
        panic(PanicHandler::Panic_CantLoadMsgDomain);
    }
    return retVal;
}


//
//  This method is called very early in the bootstrapping process. This guy
//  must create a transcoding service and return it. It cannot use any string
//  methods, any transcoding services, throw any exceptions, etc... It just
//  makes a transcoding service and returns it, or returns zero on failure.
//

XMLTransService* XMLPlatformUtils::makeTransService()
{
#if defined (XML_USE_ICU_TRANSCODER)
    // Use ICU transcoding services.
    // same as -DXML_USE_ICU_MESSAGELOADER
    return new ICUTransService;
#else
    // Use native transcoding services.
    // same as -DXML_USE_INMEM_MESSAGELOADER
    return new IconvTransService;

#endif
}

// ---------------------------------------------------------------------------
//  XMLPlatformUtils: The panic method
// ---------------------------------------------------------------------------
void XMLPlatformUtils::panic(const PanicHandler::PanicReasons reason)
{
    fgUserPanicHandler? fgUserPanicHandler->panic(reason) : fgDefaultPanicHandler->panic(reason);
}


// ---------------------------------------------------------------------------
//  XMLPlatformUtils: File Methods
// ---------------------------------------------------------------------------

unsigned int XMLPlatformUtils::curFilePos(FileHandle theFile
                                          , MemoryManager* const manager)
{
    if (theFile == NULL)
        ThrowXMLwithMemMgr(XMLPlatformUtilsException,
                 XMLExcepts::CPtr_PointerIsZero, manager);
    int curPos = ftell( (FILE*)theFile);
    if (curPos == -1)
        ThrowXMLwithMemMgr(XMLPlatformUtilsException,
                 XMLExcepts::File_CouldNotGetSize, manager);

    return (unsigned int)curPos;
}

void XMLPlatformUtils::closeFile(FileHandle theFile
                                 , MemoryManager* const manager)
{
    if (theFile == NULL)
        ThrowXMLwithMemMgr(XMLPlatformUtilsException,
                 XMLExcepts::CPtr_PointerIsZero, manager);
    if (fclose((FILE*)theFile))
        ThrowXMLwithMemMgr(XMLPlatformUtilsException,
                 XMLExcepts::File_CouldNotCloseFile, manager);
}

unsigned int XMLPlatformUtils::fileSize(FileHandle theFile
                                        , MemoryManager* const manager)
{
    if (theFile == NULL)
        ThrowXMLwithMemMgr(XMLPlatformUtilsException,
                 XMLExcepts::CPtr_PointerIsZero, manager);
    // Get the current position
    long  int curPos = ftell((FILE*) theFile);
    if (curPos == -1)
        ThrowXMLwithMemMgr(XMLPlatformUtilsException,
                 XMLExcepts::File_CouldNotGetCurPos, manager);

    // Seek to the end and save that value for return
     if (fseek((FILE*) theFile, 0, SEEK_END))
        ThrowXMLwithMemMgr(XMLPlatformUtilsException,
                 XMLExcepts::File_CouldNotSeekToEnd, manager);

    long int retVal = ftell((FILE*)theFile);
    if (retVal == -1)
        ThrowXMLwithMemMgr(XMLPlatformUtilsException,
                 XMLExcepts::File_CouldNotSeekToEnd, manager);

    // And put the pointer back

    if (fseek( (FILE*)theFile, curPos, SEEK_SET) )
        ThrowXMLwithMemMgr(XMLPlatformUtilsException,
                 XMLExcepts::File_CouldNotSeekToPos, manager);

    return (unsigned int)retVal;
}

FileHandle XMLPlatformUtils::openFile(const XMLCh* const fileName
                                      , MemoryManager* const manager)
{
    if (fileName == NULL)
        ThrowXMLwithMemMgr(XMLPlatformUtilsException,
                 XMLExcepts::CPtr_PointerIsZero, manager);
    const char* tmpFileName = XMLString::transcode(fileName, manager);
    ArrayJanitor<char> janText((char*)tmpFileName, manager);
    FileHandle retVal = (FILE*)fopen( tmpFileName , "r+" );

    if (retVal == NULL)
        return 0;
    return retVal;
}

FileHandle XMLPlatformUtils::openFile(const char* const fileName
                                      , MemoryManager* const manager)
{
    if (fileName == NULL)
        ThrowXMLwithMemMgr(XMLPlatformUtilsException,
                 XMLExcepts::CPtr_PointerIsZero, manager);
    FileHandle retVal = (FILE*)fopen( fileName , "r+" );

    if (retVal == NULL)
        return 0;
    return retVal;
}

FileHandle XMLPlatformUtils::openFileToWrite(const XMLCh* const fileName
                                             , MemoryManager* const manager)
{
    if (fileName == NULL)
        ThrowXMLwithMemMgr(XMLPlatformUtilsException,
                 XMLExcepts::CPtr_PointerIsZero, manager);
    const char* tmpFileName = XMLString::transcode(fileName, manager);
    ArrayJanitor<char> janText((char*)tmpFileName, manager);

    FileHandle retVal = (FILE*)fopen( tmpFileName, "r+" );
    if (retVal == NULL)
        return 0;
    return retVal;
}

FileHandle XMLPlatformUtils::openFileToWrite(const char* const fileName
                                             , MemoryManager* const manager)
{
    if (fileName == NULL)
        ThrowXMLwithMemMgr(XMLPlatformUtilsException,
                 XMLExcepts::CPtr_PointerIsZero, manager);
    FileHandle retVal = (FILE*)fopen( fileName, "r+" );

    if (retVal == NULL)
        return 0;
    return retVal;
}

FileHandle XMLPlatformUtils::openStdInHandle(MemoryManager* const manager)
{
    int nfd = dup(0);
    if (nfd == -1)
        ThrowXMLwithMemMgr(XMLPlatformUtilsException,
                XMLExcepts::File_CouldNotDupHandle, manager);
    return (FileHandle)fdopen(dup(0), "r");
}



unsigned int
XMLPlatformUtils::readFileBuffer( FileHandle           theFile
                                , const unsigned int   toRead
                                , XMLByte* const       toFill
                                , MemoryManager* const manager)
{
    if ( !theFile || !toFill )
        ThrowXMLwithMemMgr(XMLPlatformUtilsException,
                 XMLExcepts::CPtr_PointerIsZero, manager);