MacPosixFile.cpp
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- /*
- * The Apache Software License, Version 1.1
- *
- * Copyright (c) 1999-2000 The Apache Software Foundation. All rights
- * reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in
- * the documentation and/or other materials provided with the
- * distribution.
- *
- * 3. The end-user documentation included with the redistribution,
- * if any, must include the following acknowledgment:
- * "This product includes software developed by the
- * Apache Software Foundation (http://www.apache.org/)."
- * Alternately, this acknowledgment may appear in the software itself,
- * if and wherever such third-party acknowledgments normally appear.
- *
- * 4. The names "Xerces" and "Apache Software Foundation" must
- * not be used to endorse or promote products derived from this
- * software without prior written permission. For written
- * permission, please contact apache@apache.org.
- *
- * 5. Products derived from this software may not be called "Apache",
- * nor may "Apache" appear in their name, without prior written
- * permission of the Apache Software Foundation.
- *
- * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
- * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
- * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
- * DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
- * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
- * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
- * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
- * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
- * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- * ====================================================================
- *
- * This software consists of voluntary contributions made by many
- * individuals on behalf of the Apache Software Foundation, and was
- * originally based on software copyright (c) 1999, International
- * Business Machines, Inc., http://www.ibm.com . For more information
- * on the Apache Software Foundation, please see
- * <http://www.apache.org/>.
- */
- /*
- * $Id: MacPosixFile.cpp,v 1.1 2003/02/23 04:41:26 jberry Exp $
- */
- #include <xercesc/util/XercesDefs.hpp>
- #include <xercesc/util/XMLString.hpp>
- #include <xercesc/util/Janitor.hpp>
- #include <limits.h>
- #include <stdio.h>
- #include <xercesc/util/Platforms/MacOS/MacPosixFile.hpp>
- XERCES_CPP_NAMESPACE_BEGIN
- //----------------------------------------------------------------------------
- // XMLMacPosixFile methods
- //----------------------------------------------------------------------------
- XMLMacPosixFile::XMLMacPosixFile()
- : mFile(NULL)
- {
- }
- XMLMacPosixFile::~XMLMacPosixFile()
- {
- if (mFile)
- close();
- }
- unsigned int
- XMLMacPosixFile::currPos()
- {
- if (!mFile)
- ThrowXML(XMLPlatformUtilsException, XMLExcepts::CPtr_PointerIsZero);
-
- long curPos = ftell(mFile);
-
- if (curPos == -1)
- ThrowXML(XMLPlatformUtilsException, XMLExcepts::File_CouldNotGetSize);
- return (unsigned int)curPos;
- }
- void
- XMLMacPosixFile::close()
- {
- if (!mFile)
- ThrowXML(XMLPlatformUtilsException, XMLExcepts::CPtr_PointerIsZero);
-
- if (fclose(mFile))
- ThrowXML(XMLPlatformUtilsException, XMLExcepts::File_CouldNotCloseFile);
-
- mFile = NULL;
- }
- unsigned int
- XMLMacPosixFile::size()
- {
- if (mFile == NULL)
- ThrowXML(XMLPlatformUtilsException, XMLExcepts::CPtr_PointerIsZero);
-
- // Get the current position
- long curPos = ftell(mFile);
- if (curPos == -1)
- ThrowXML(XMLPlatformUtilsException, XMLExcepts::File_CouldNotGetCurPos);
- // Seek to the end and save that value for return
- if (fseek(mFile, 0, SEEK_END))
- ThrowXML(XMLPlatformUtilsException, XMLExcepts::File_CouldNotSeekToEnd);
- long retVal = ftell(mFile);
- if (retVal == -1)
- ThrowXML(XMLPlatformUtilsException, XMLExcepts::File_CouldNotSeekToEnd);
- // And put the pointer back
- if (fseek(mFile, curPos, SEEK_SET))
- ThrowXML(XMLPlatformUtilsException, XMLExcepts::File_CouldNotSeekToPos);
- return (unsigned int)retVal;
- }
- bool
- XMLMacPosixFile::open(const XMLCh* const path, bool toWrite)
- {
- if (!path)
- ThrowXML(XMLPlatformUtilsException, XMLExcepts::CPtr_PointerIsZero);
- // Transcode the unicode path to UTF8, which is what the Mac posix routines want
- char tmpPath[kMaxMacStaticPathChars];
- std::size_t len = TranscodeUniCharsToUTF8(path, tmpPath, XMLString::stringLen(path), kMaxMacStaticPathChars-1);
- tmpPath[len] = 0;
-
- // Call through to the char version to do the work
- return open(tmpPath, toWrite);
- }
- bool
- XMLMacPosixFile::open(const char* const path, bool toWrite)
- {
- if (!path)
- ThrowXML(XMLPlatformUtilsException, XMLExcepts::CPtr_PointerIsZero);
- const char* perms = (toWrite) ? "w" : "r+";
- mFile = fopen(path, perms);
-
- return (mFile != NULL);
- }
- unsigned int
- XMLMacPosixFile::read(const unsigned int byteCount, XMLByte* const buffer)
- {
- if (!mFile || !buffer)
- ThrowXML(XMLPlatformUtilsException, XMLExcepts::CPtr_PointerIsZero);
-
- size_t bytesRead = 0;
- if (byteCount > 0)
- {
- bytesRead = fread((void*)buffer, 1, byteCount, mFile);
- if (ferror(mFile))
- ThrowXML(XMLPlatformUtilsException, XMLExcepts::File_CouldNotReadFromFile);
- }
-
- return (unsigned int)bytesRead;
- }
- void
- XMLMacPosixFile::write(long byteCount, const XMLByte* buffer)
- {
- if (!mFile || !buffer)
- ThrowXML(XMLPlatformUtilsException, XMLExcepts::CPtr_PointerIsZero);
- while (byteCount > 0)
- {
- size_t bytesWritten = fwrite(buffer, sizeof(XMLByte), byteCount, mFile);
- if (ferror(mFile))
- ThrowXML(XMLPlatformUtilsException, XMLExcepts::File_CouldNotWriteToFile);
- buffer += bytesWritten;
- byteCount -= bytesWritten;
- }
- }
- void
- XMLMacPosixFile::reset()
- {
- if (!mFile)
- ThrowXML(XMLPlatformUtilsException, XMLExcepts::CPtr_PointerIsZero);
-
- // Seek to the start of the file
- if (fseek(mFile, 0, SEEK_SET))
- ThrowXML(XMLPlatformUtilsException, XMLExcepts::File_CouldNotResetFile);
- }
- XERCES_CPP_NAMESPACE_END