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<div id="projectname">Crashpad
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<li class="navelem"><a class="el" href="namespacecrashpad.html">crashpad</a></li><li class="navelem"><a class="el" href="classcrashpad_1_1FileReader.html">FileReader</a></li> </ul>
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<div class="header">
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<div class="summary">
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<a href="#pub-methods">Public Member Functions</a> |
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<a href="classcrashpad_1_1FileReader-members.html">List of all members</a> </div>
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<div class="headertitle">
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<div class="title">crashpad::FileReader Class Reference</div> </div>
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<div class="contents">
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<p>A file reader implementation that wraps traditional system file operations on files accessed through the filesystem.
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<a href="classcrashpad_1_1FileReader.html#details">More...</a></p>
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<p><code>#include "util/file/file_reader.h"</code></p>
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<div class="dynheader">
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Inheritance diagram for crashpad::FileReader:</div>
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<div class="dyncontent">
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<div class="center">
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<img src="classcrashpad_1_1FileReader.png" usemap="#crashpad::FileReader_map" alt=""/>
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<map id="crashpad::FileReader_map" name="crashpad::FileReader_map">
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<area href="classcrashpad_1_1FileReaderInterface.html" title="An interface to read to files and other file-like objects with semantics matching the underlying plat..." alt="crashpad::FileReaderInterface" shape="rect" coords="0,56,183,80"/>
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<area href="classcrashpad_1_1FileSeekerInterface.html" title="An interface to seek in files and other file-like objects with semantics matching the underlying plat..." alt="crashpad::FileSeekerInterface" shape="rect" coords="0,0,183,24"/>
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</map>
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</div></div>
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<table class="memberdecls">
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<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pub-methods"></a>
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Public Member Functions</h2></td></tr>
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<tr class="memitem:a7b1d936d3040a4ba89fca13fc6566ddd"><td class="memItemLeft" align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="classcrashpad_1_1FileReader.html#a7b1d936d3040a4ba89fca13fc6566ddd">Open</a> (const base::FilePath &path)</td></tr>
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<tr class="memdesc:a7b1d936d3040a4ba89fca13fc6566ddd"><td class="mdescLeft"> </td><td class="mdescRight">Wraps <a class="el" href="namespacecrashpad.html#ab3712d59104f641109b170c78a912b4d" title="Wraps OpenFileForRead(), logging an error if the operation fails. ">LoggingOpenFileForRead()</a>. <a href="#a7b1d936d3040a4ba89fca13fc6566ddd">More...</a><br /></td></tr>
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<tr class="separator:a7b1d936d3040a4ba89fca13fc6566ddd"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a95e3c16213d1b2eb9a6896057afd7463"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classcrashpad_1_1FileReader.html#a95e3c16213d1b2eb9a6896057afd7463">Close</a> ()</td></tr>
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<tr class="memdesc:a95e3c16213d1b2eb9a6896057afd7463"><td class="mdescLeft"> </td><td class="mdescRight">Wraps CheckedCloseHandle(). <a href="#a95e3c16213d1b2eb9a6896057afd7463">More...</a><br /></td></tr>
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<tr class="separator:a95e3c16213d1b2eb9a6896057afd7463"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a71bb3e12f135a0e84b1385ab89e46611"><td class="memItemLeft" align="right" valign="top"><a class="el" href="namespacecrashpad.html#a25465a3a2d289a06addf93c346c6f917">FileOperationResult</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="classcrashpad_1_1FileReader.html#a71bb3e12f135a0e84b1385ab89e46611">Read</a> (void *data, size_t size) override</td></tr>
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<tr class="memdesc:a71bb3e12f135a0e84b1385ab89e46611"><td class="mdescLeft"> </td><td class="mdescRight">Wraps <a class="el" href="namespacecrashpad.html#a8599600814a17d622766decd5f122a96" title="Reads from a file, retrying when interrupted before reading any data on POSIX. ">ReadFile()</a>, or provides an implementation with identical semantics. <a href="#a71bb3e12f135a0e84b1385ab89e46611">More...</a><br /></td></tr>
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<tr class="separator:a71bb3e12f135a0e84b1385ab89e46611"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:aa468e6ee52895d46173aed720230f4b8"><td class="memItemLeft" align="right" valign="top"><a class="el" href="namespacecrashpad.html#a1e53a1957d9edcba8b406ea632b6daf2">FileOffset</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="classcrashpad_1_1FileReader.html#aa468e6ee52895d46173aed720230f4b8">Seek</a> (<a class="el" href="namespacecrashpad.html#a1e53a1957d9edcba8b406ea632b6daf2">FileOffset</a> offset, int whence) override</td></tr>
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<tr class="memdesc:aa468e6ee52895d46173aed720230f4b8"><td class="mdescLeft"> </td><td class="mdescRight">Wraps <a class="el" href="namespacecrashpad.html#a3d6cedc10e24145d4a0c1000c33f8a10" title="Wraps lseek() or SetFilePointerEx(). Logs an error if the operation fails. ">LoggingSeekFile()</a> or provides an alternate implementation with identical semantics. <a href="#aa468e6ee52895d46173aed720230f4b8">More...</a><br /></td></tr>
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<tr class="separator:aa468e6ee52895d46173aed720230f4b8"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="inherit_header pub_methods_classcrashpad_1_1FileReaderInterface"><td colspan="2" onclick="javascript:toggleInherit('pub_methods_classcrashpad_1_1FileReaderInterface')"><img src="closed.png" alt="-"/> Public Member Functions inherited from <a class="el" href="classcrashpad_1_1FileReaderInterface.html">crashpad::FileReaderInterface</a></td></tr>
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<tr class="memitem:ad046f1ebf1071eb6b92a2a8d06c14a56 inherit pub_methods_classcrashpad_1_1FileReaderInterface"><td class="memItemLeft" align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="classcrashpad_1_1FileReaderInterface.html#ad046f1ebf1071eb6b92a2a8d06c14a56">ReadExactly</a> (void *data, size_t size)</td></tr>
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<tr class="memdesc:ad046f1ebf1071eb6b92a2a8d06c14a56 inherit pub_methods_classcrashpad_1_1FileReaderInterface"><td class="mdescLeft"> </td><td class="mdescRight">Wraps <a class="el" href="classcrashpad_1_1FileReaderInterface.html#ad9035ff345274f33cef248712d53d9e1" title="Wraps ReadFile(), or provides an implementation with identical semantics. ">Read()</a>, ensuring that the read succeeded and exactly <em>size</em> bytes were read. <a href="classcrashpad_1_1FileReaderInterface.html#ad046f1ebf1071eb6b92a2a8d06c14a56">More...</a><br /></td></tr>
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<tr class="separator:ad046f1ebf1071eb6b92a2a8d06c14a56 inherit pub_methods_classcrashpad_1_1FileReaderInterface"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="inherit_header pub_methods_classcrashpad_1_1FileSeekerInterface"><td colspan="2" onclick="javascript:toggleInherit('pub_methods_classcrashpad_1_1FileSeekerInterface')"><img src="closed.png" alt="-"/> Public Member Functions inherited from <a class="el" href="classcrashpad_1_1FileSeekerInterface.html">crashpad::FileSeekerInterface</a></td></tr>
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<tr class="memitem:a49a884bfb0a61461b0291c975aa15382 inherit pub_methods_classcrashpad_1_1FileSeekerInterface"><td class="memItemLeft" align="right" valign="top"><a class="el" href="namespacecrashpad.html#a1e53a1957d9edcba8b406ea632b6daf2">FileOffset</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="classcrashpad_1_1FileSeekerInterface.html#a49a884bfb0a61461b0291c975aa15382">SeekGet</a> ()</td></tr>
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<tr class="memdesc:a49a884bfb0a61461b0291c975aa15382 inherit pub_methods_classcrashpad_1_1FileSeekerInterface"><td class="mdescLeft"> </td><td class="mdescRight">Wraps <a class="el" href="classcrashpad_1_1FileSeekerInterface.html#a8d56f7d12dfcce3e4a39ad1524302aa1" title="Wraps LoggingSeekFile() or provides an alternate implementation with identical semantics. ">Seek()</a>, using <code>SEEK_CUR</code> to obtain the file’s current position. <a href="classcrashpad_1_1FileSeekerInterface.html#a49a884bfb0a61461b0291c975aa15382">More...</a><br /></td></tr>
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<tr class="separator:a49a884bfb0a61461b0291c975aa15382 inherit pub_methods_classcrashpad_1_1FileSeekerInterface"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:add2e1ee642d94c91ef722911e9aee250 inherit pub_methods_classcrashpad_1_1FileSeekerInterface"><td class="memItemLeft" align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="classcrashpad_1_1FileSeekerInterface.html#add2e1ee642d94c91ef722911e9aee250">SeekSet</a> (<a class="el" href="namespacecrashpad.html#a1e53a1957d9edcba8b406ea632b6daf2">FileOffset</a> offset)</td></tr>
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<tr class="memdesc:add2e1ee642d94c91ef722911e9aee250 inherit pub_methods_classcrashpad_1_1FileSeekerInterface"><td class="mdescLeft"> </td><td class="mdescRight">Wraps <a class="el" href="classcrashpad_1_1FileSeekerInterface.html#a8d56f7d12dfcce3e4a39ad1524302aa1" title="Wraps LoggingSeekFile() or provides an alternate implementation with identical semantics. ">Seek()</a>, using <code>SEEK_SET</code>, ensuring that the seek succeeded and the file is positioned as desired. <a href="classcrashpad_1_1FileSeekerInterface.html#add2e1ee642d94c91ef722911e9aee250">More...</a><br /></td></tr>
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<tr class="separator:add2e1ee642d94c91ef722911e9aee250 inherit pub_methods_classcrashpad_1_1FileSeekerInterface"><td class="memSeparator" colspan="2"> </td></tr>
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</table>
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<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
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<div class="textblock"><p>A file reader implementation that wraps traditional system file operations on files accessed through the filesystem. </p>
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</div><h2 class="groupheader">Member Function Documentation</h2>
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<a id="a95e3c16213d1b2eb9a6896057afd7463"></a>
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<h2 class="memtitle"><span class="permalink"><a href="#a95e3c16213d1b2eb9a6896057afd7463">◆ </a></span>Close()</h2>
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<td class="memname">void crashpad::FileReader::Close </td>
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<td>(</td>
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<td class="paramname"></td><td>)</td>
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<td></td>
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</div><div class="memdoc">
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<p>Wraps CheckedCloseHandle(). </p>
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<dl class="section note"><dt>Note</dt><dd>It is only valid to call this method on an object that has had a successful <a class="el" href="classcrashpad_1_1FileReader.html#a7b1d936d3040a4ba89fca13fc6566ddd" title="Wraps LoggingOpenFileForRead(). ">Open()</a> that has not yet been matched by a subsequent call to this method. </dd></dl>
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</div>
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<a id="a7b1d936d3040a4ba89fca13fc6566ddd"></a>
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<h2 class="memtitle"><span class="permalink"><a href="#a7b1d936d3040a4ba89fca13fc6566ddd">◆ </a></span>Open()</h2>
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<div class="memitem">
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<div class="memproto">
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<td class="memname">bool crashpad::FileReader::Open </td>
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<td>(</td>
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<td class="paramtype">const base::FilePath & </td>
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<td class="paramname"><em>path</em></td><td>)</td>
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<td></td>
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</tr>
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</div><div class="memdoc">
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<p>Wraps <a class="el" href="namespacecrashpad.html#ab3712d59104f641109b170c78a912b4d" title="Wraps OpenFileForRead(), logging an error if the operation fails. ">LoggingOpenFileForRead()</a>. </p>
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<dl class="section return"><dt>Returns</dt><dd><code>true</code> if the operation succeeded, <code>false</code> if it failed, with an error message logged.</dd></dl>
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<dl class="section note"><dt>Note</dt><dd>After a successful call, this method cannot be called again until after <a class="el" href="classcrashpad_1_1FileReader.html#a95e3c16213d1b2eb9a6896057afd7463" title="Wraps CheckedCloseHandle(). ">Close()</a>. </dd></dl>
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</div>
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</div>
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<a id="a71bb3e12f135a0e84b1385ab89e46611"></a>
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<h2 class="memtitle"><span class="permalink"><a href="#a71bb3e12f135a0e84b1385ab89e46611">◆ </a></span>Read()</h2>
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<div class="memitem">
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<div class="memproto">
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<table class="mlabels">
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<td class="mlabels-left">
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<table class="memname">
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<tr>
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<td class="memname"><a class="el" href="namespacecrashpad.html#a25465a3a2d289a06addf93c346c6f917">FileOperationResult</a> crashpad::FileReader::Read </td>
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<td>(</td>
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<td class="paramtype">void * </td>
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<td class="paramname"><em>data</em>, </td>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype">size_t </td>
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<td class="paramname"><em>size</em> </td>
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</tr>
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<td></td>
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<td>)</td>
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<td></td><td></td>
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</td>
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<td class="mlabels-right">
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<span class="mlabels"><span class="mlabel">override</span><span class="mlabel">virtual</span></span> </td>
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</tr>
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</table>
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</div><div class="memdoc">
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<p>Wraps <a class="el" href="namespacecrashpad.html#a8599600814a17d622766decd5f122a96" title="Reads from a file, retrying when interrupted before reading any data on POSIX. ">ReadFile()</a>, or provides an implementation with identical semantics. </p>
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<dl class="section return"><dt>Returns</dt><dd>The number of bytes actually read if the operation succeeded, which may be <code>0</code> or any positive value less than or equal to <em>size</em>. <code>-1</code> if the operation failed, with an error message logged.</dd></dl>
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<dl class="section note"><dt>Note</dt><dd>It is only valid to call this method between a successful <a class="el" href="classcrashpad_1_1FileReader.html#a7b1d936d3040a4ba89fca13fc6566ddd" title="Wraps LoggingOpenFileForRead(). ">Open()</a> and a <a class="el" href="classcrashpad_1_1FileReader.html#a95e3c16213d1b2eb9a6896057afd7463" title="Wraps CheckedCloseHandle(). ">Close()</a>. </dd></dl>
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<p>Implements <a class="el" href="classcrashpad_1_1FileReaderInterface.html#ad9035ff345274f33cef248712d53d9e1">crashpad::FileReaderInterface</a>.</p>
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</div>
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</div>
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<a id="aa468e6ee52895d46173aed720230f4b8"></a>
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<h2 class="memtitle"><span class="permalink"><a href="#aa468e6ee52895d46173aed720230f4b8">◆ </a></span>Seek()</h2>
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<div class="memitem">
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<div class="memproto">
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<table class="mlabels">
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<td class="mlabels-left">
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<table class="memname">
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<tr>
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<td class="memname"><a class="el" href="namespacecrashpad.html#a1e53a1957d9edcba8b406ea632b6daf2">FileOffset</a> crashpad::FileReader::Seek </td>
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<td>(</td>
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<td class="paramtype"><a class="el" href="namespacecrashpad.html#a1e53a1957d9edcba8b406ea632b6daf2">FileOffset</a> </td>
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<td class="paramname"><em>offset</em>, </td>
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</tr>
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<tr>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype">int </td>
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<td class="paramname"><em>whence</em> </td>
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<tr>
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<td></td>
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<td>)</td>
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<td></td><td></td>
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</td>
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<td class="mlabels-right">
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<span class="mlabels"><span class="mlabel">override</span><span class="mlabel">virtual</span></span> </td>
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</tr>
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</table>
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</div><div class="memdoc">
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<p>Wraps <a class="el" href="namespacecrashpad.html#a3d6cedc10e24145d4a0c1000c33f8a10" title="Wraps lseek() or SetFilePointerEx(). Logs an error if the operation fails. ">LoggingSeekFile()</a> or provides an alternate implementation with identical semantics. </p>
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<dl class="section return"><dt>Returns</dt><dd>The return value of <a class="el" href="namespacecrashpad.html#a3d6cedc10e24145d4a0c1000c33f8a10" title="Wraps lseek() or SetFilePointerEx(). Logs an error if the operation fails. ">LoggingSeekFile()</a>. <code>-1</code> on failure, with an error message logged.</dd></dl>
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<dl class="section note"><dt>Note</dt><dd>It is only valid to call this method between a successful <a class="el" href="classcrashpad_1_1FileReader.html#a7b1d936d3040a4ba89fca13fc6566ddd" title="Wraps LoggingOpenFileForRead(). ">Open()</a> and a <a class="el" href="classcrashpad_1_1FileReader.html#a95e3c16213d1b2eb9a6896057afd7463" title="Wraps CheckedCloseHandle(). ">Close()</a>. </dd></dl>
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<p>Implements <a class="el" href="classcrashpad_1_1FileSeekerInterface.html#a8d56f7d12dfcce3e4a39ad1524302aa1">crashpad::FileSeekerInterface</a>.</p>
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</div>
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</div>
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<hr/>The documentation for this class was generated from the following files:<ul>
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<li>util/file/file_reader.h</li>
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<li>util/file/file_reader.cc</li>
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</ul>
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</a> 1.8.13
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