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<div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">// **************************************************************************</span>
<a name="l00002"></a>00002 <span class="comment">// * This file is part of the zen::Xml project. It is distributed under the *</span>
<a name="l00003"></a>00003 <span class="comment">// * Boost Software License: http://www.boost.org/LICENSE_1_0.txt *</span>
<a name="l00004"></a>00004 <span class="comment">// * Copyright (C) Zenju (zenju AT gmx DOT de) - All Rights Reserved *</span>
<a name="l00005"></a>00005 <span class="comment">// **************************************************************************</span>
<a name="l00006"></a>00006
<a name="l00007"></a>00007 <span class="preprocessor">#ifndef ZEN_XML_IO_HEADER_8917640501480763248343343</span>
<a name="l00008"></a>00008 <span class="preprocessor"></span><span class="preprocessor">#define ZEN_XML_IO_HEADER_8917640501480763248343343</span>
<a name="l00009"></a>00009 <span class="preprocessor"></span>
<a name="l00010"></a>00010 <span class="preprocessor">#include <cstdio></span>
<a name="l00011"></a>00011 <span class="preprocessor">#include <cerrno></span>
<a name="l00012"></a>00012 <span class="preprocessor">#include <zen/scope_guard.h></span>
<a name="l00013"></a>00013 <span class="preprocessor">#include <zen/utf.h></span>
<a name="l00014"></a>00014 <span class="preprocessor">#include "error.h"</span>
<a name="l00015"></a>00015
<a name="l00016"></a>00016 <span class="keyword">namespace </span>zen
<a name="l00017"></a>00017 {
<a name="l00023"></a>00023 <span class="preprocessor">#if !defined(ZEN_PLATFORM_WINDOWS) && !defined(ZEN_PLATFORM_OTHER)</span>
<a name="l00024"></a>00024 <span class="preprocessor"></span><span class="preprocessor">#error Please specify your platform: #define ZEN_PLATFORM_WINDOWS or ZEN_PLATFORM_OTHER</span>
<a name="l00025"></a>00025 <span class="preprocessor"></span><span class="preprocessor">#endif</span>
<a name="l00026"></a>00026 <span class="preprocessor"></span>
<a name="l00028"></a><a class="code" href="structzen_1_1_xml_file_error.html">00028</a> <span class="keyword">struct </span><a class="code" href="structzen_1_1_xml_file_error.html" title="Exception thrown due to failed file I/O.">XmlFileError</a> : <span class="keyword">public</span> <a class="code" href="structzen_1_1_xml_error.html" title="Exception base class for zen::Xml.">XmlError</a>
<a name="l00029"></a>00029 {
<a name="l00030"></a>00030 <span class="keyword">typedef</span> <span class="keywordtype">int</span> ErrorCode;
<a name="l00031"></a>00031
<a name="l00032"></a>00032 <span class="keyword">explicit</span> <a class="code" href="structzen_1_1_xml_file_error.html" title="Exception thrown due to failed file I/O.">XmlFileError</a>(ErrorCode ec) : <a class="code" href="structzen_1_1_xml_file_error.html#a4a109e749675a3887af8cfc140303b8f" title="Native error code: errno.">lastError</a>(ec) {}
<a name="l00034"></a><a class="code" href="structzen_1_1_xml_file_error.html#a4a109e749675a3887af8cfc140303b8f">00034</a> ErrorCode <a class="code" href="structzen_1_1_xml_file_error.html#a4a109e749675a3887af8cfc140303b8f" title="Native error code: errno.">lastError</a>;
<a name="l00035"></a>00035 };
<a name="l00036"></a>00036
<a name="l00037"></a>00037
<a name="l00038"></a>00038 <span class="preprocessor">#ifdef ZEN_PLATFORM_WINDOWS</span>
<a name="l00039"></a>00039 <span class="preprocessor"></span><span class="keyword">namespace </span>implemenation <span class="comment">//sad but true</span>
<a name="l00040"></a>00040 {
<a name="l00041"></a>00041 <span class="keyword">template</span> <<span class="keyword">class</span> String> <span class="keyword">inline</span>
<a name="l00042"></a>00042 FILE* fopen(<span class="keyword">const</span> String& filename, <span class="keyword">const</span> <span class="keywordtype">wchar_t</span>* mode)
<a name="l00043"></a>00043 {
<a name="l00044"></a>00044 <span class="preprocessor">#ifdef _MSC_VER</span>
<a name="l00045"></a>00045 <span class="preprocessor"></span> FILE* handle = <span class="keyword">nullptr</span>;
<a name="l00046"></a>00046 errno_t rv = ::_wfopen_s(&handle, utfCvrtTo<std::wstring>(filename).c_str(), mode); <span class="comment">//more secure?</span>
<a name="l00047"></a>00047 (void)rv;
<a name="l00048"></a>00048 <span class="keywordflow">return</span> handle;
<a name="l00049"></a>00049 <span class="preprocessor">#else</span>
<a name="l00050"></a>00050 <span class="preprocessor"></span> return ::_wfopen(utfCvrtTo<std::wstring>(filename).c_str(), mode);
<a name="l00051"></a>00051 <span class="preprocessor">#endif</span>
<a name="l00052"></a>00052 <span class="preprocessor"></span>}
<a name="l00053"></a>00053 }
<a name="l00054"></a>00054 <span class="preprocessor">#endif</span>
<a name="l00055"></a>00055 <span class="preprocessor"></span>
<a name="l00056"></a>00056
<a name="l00058"></a>00058
<a name="l00064"></a>00064 <span class="keyword">template</span> <<span class="keyword">class</span> String>
<a name="l00065"></a><a class="code" href="namespacezen.html#a4ba7bbaa14a787b07fc13da9145aabe2">00065</a> <span class="keywordtype">void</span> <a class="code" href="namespacezen.html#a4ba7bbaa14a787b07fc13da9145aabe2" title="Save byte stream to a file.">saveStream</a>(<span class="keyword">const</span> std::string& stream, <span class="keyword">const</span> String& filename) <span class="comment">//throw XmlFileError</span>
<a name="l00066"></a>00066 {
<a name="l00067"></a>00067 <span class="preprocessor">#ifdef ZEN_PLATFORM_WINDOWS</span>
<a name="l00068"></a>00068 <span class="preprocessor"></span> FILE* handle = implemenation::fopen(utfCvrtTo<std::wstring>(filename).c_str(), L<span class="stringliteral">"wb"</span>);
<a name="l00069"></a>00069 <span class="preprocessor">#else</span>
<a name="l00070"></a>00070 <span class="preprocessor"></span> FILE* handle = ::fopen(utfCvrtTo<std::string>(filename).c_str(), <span class="stringliteral">"w"</span>);
<a name="l00071"></a>00071 <span class="preprocessor">#endif</span>
<a name="l00072"></a>00072 <span class="preprocessor"></span> <span class="keywordflow">if</span> (handle == <span class="keyword">nullptr</span>)
<a name="l00073"></a>00073 <span class="keywordflow">throw</span> <a class="code" href="structzen_1_1_xml_file_error.html" title="Exception thrown due to failed file I/O.">XmlFileError</a>(errno);
<a name="l00074"></a>00074 ZEN_ON_SCOPE_EXIT(::fclose(handle));
<a name="l00075"></a>00075
<a name="l00076"></a>00076 <span class="keyword">const</span> <span class="keywordtype">size_t</span> bytesWritten = ::fwrite(stream.c_str(), 1, stream.size(), handle);
<a name="l00077"></a>00077 <span class="keywordflow">if</span> (::ferror(handle) != 0)
<a name="l00078"></a>00078 <span class="keywordflow">throw</span> <a class="code" href="structzen_1_1_xml_file_error.html" title="Exception thrown due to failed file I/O.">XmlFileError</a>(errno);
<a name="l00079"></a>00079
<a name="l00080"></a>00080 (void)bytesWritten;
<a name="l00081"></a>00081 assert(bytesWritten == stream.size());
<a name="l00082"></a>00082 }
<a name="l00083"></a>00083
<a name="l00084"></a>00084
<a name="l00086"></a>00086
<a name="l00092"></a>00092 <span class="keyword">template</span> <<span class="keyword">class</span> String>
<a name="l00093"></a><a class="code" href="namespacezen.html#a04fe23c3bd9b7d03309620b5ea763607">00093</a> std::string <a class="code" href="namespacezen.html#a04fe23c3bd9b7d03309620b5ea763607" title="Load byte stream from a file.">loadStream</a>(<span class="keyword">const</span> String& filename) <span class="comment">//throw XmlFileError</span>
<a name="l00094"></a>00094 {
<a name="l00095"></a>00095 <span class="preprocessor">#ifdef ZEN_PLATFORM_WINDOWS</span>
<a name="l00096"></a>00096 <span class="preprocessor"></span> FILE* handle = implemenation::fopen(utfCvrtTo<std::wstring>(filename).c_str(), L<span class="stringliteral">"rb"</span>);
<a name="l00097"></a>00097 <span class="preprocessor">#else</span>
<a name="l00098"></a>00098 <span class="preprocessor"></span> FILE* handle = ::fopen(utfCvrtTo<std::string>(filename).c_str(), <span class="stringliteral">"r"</span>);
<a name="l00099"></a>00099 <span class="preprocessor">#endif</span>
<a name="l00100"></a>00100 <span class="preprocessor"></span> <span class="keywordflow">if</span> (handle == <span class="keyword">nullptr</span>)
<a name="l00101"></a>00101 <span class="keywordflow">throw</span> <a class="code" href="structzen_1_1_xml_file_error.html" title="Exception thrown due to failed file I/O.">XmlFileError</a>(errno);
<a name="l00102"></a>00102 ZEN_ON_SCOPE_EXIT(::fclose(handle));
<a name="l00103"></a>00103
<a name="l00104"></a>00104 std::string stream;
<a name="l00105"></a>00105 <span class="keyword">const</span> <span class="keywordtype">size_t</span> blockSize = 64 * 1024;
<a name="l00106"></a>00106 <span class="keywordflow">do</span>
<a name="l00107"></a>00107 {
<a name="l00108"></a>00108 stream.resize(stream.size() + blockSize); <span class="comment">//let's pray std::string implements exponential growth!</span>
<a name="l00109"></a>00109
<a name="l00110"></a>00110 <span class="keyword">const</span> <span class="keywordtype">size_t</span> bytesRead = ::fread(&*(stream.begin() + stream.size() - blockSize), 1, blockSize, handle);
<a name="l00111"></a>00111 <span class="keywordflow">if</span> (::ferror(handle))
<a name="l00112"></a>00112 <span class="keywordflow">throw</span> <a class="code" href="structzen_1_1_xml_file_error.html" title="Exception thrown due to failed file I/O.">XmlFileError</a>(errno);
<a name="l00113"></a>00113 <span class="keywordflow">if</span> (bytesRead > blockSize)
<a name="l00114"></a>00114 <span class="keywordflow">throw</span> <a class="code" href="structzen_1_1_xml_file_error.html" title="Exception thrown due to failed file I/O.">XmlFileError</a>(0);
<a name="l00115"></a>00115 <span class="keywordflow">if</span> (bytesRead < blockSize)
<a name="l00116"></a>00116 stream.resize(stream.size() - (blockSize - bytesRead)); <span class="comment">//caveat: unsigned arithmetics</span>
<a name="l00117"></a>00117 }
<a name="l00118"></a>00118 <span class="keywordflow">while</span> (!::feof(handle));
<a name="l00119"></a>00119
<a name="l00120"></a>00120 <span class="keywordflow">return</span> stream;
<a name="l00121"></a>00121 }
<a name="l00122"></a>00122 }
<a name="l00123"></a>00123
<a name="l00124"></a>00124 <span class="preprocessor">#endif //ZEN_XML_IO_HEADER_8917640501480763248343343</span>
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