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<li class="navelem"><a class="el" href="namespacewreport.html">wreport</a></li><li class="navelem"><b>sys</b></li><li class="navelem"><a class="el" href="classwreport_1_1sys_1_1File.html">File</a></li> </ul>
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<a href="#pub-methods">Public Member Functions</a> |
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<p>open(2) file descriptors
<a href="classwreport_1_1sys_1_1File.html#details">More...</a></p>
<p><code>#include <<a class="el" href="sys_8h_source.html">sys.h</a>></code></p>
<div class="dynheader">
Inheritance diagram for wreport::sys::File:</div>
<div class="dyncontent">
<div class="center">
<img src="classwreport_1_1sys_1_1File.png" usemap="#wreport::sys::File_map" alt=""/>
<map id="wreport::sys::File_map" name="wreport::sys::File_map">
<area href="classwreport_1_1sys_1_1NamedFileDescriptor.html" title="File descriptor with a name. " alt="wreport::sys::NamedFileDescriptor" shape="rect" coords="0,56,205,80"/>
<area href="classwreport_1_1sys_1_1FileDescriptor.html" title="Common operations on file descriptors. " alt="wreport::sys::FileDescriptor" shape="rect" coords="0,0,205,24"/>
</map>
</div></div>
<table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pub-methods"></a>
Public Member Functions</h2></td></tr>
<tr class="memitem:a90d04917cb8b8f8d60a6e2b2001bb253"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a90d04917cb8b8f8d60a6e2b2001bb253"></a>
 </td><td class="memItemRight" valign="bottom"><b>File</b> (<a class="el" href="classwreport_1_1sys_1_1File.html">File</a> &&)=default</td></tr>
<tr class="separator:a90d04917cb8b8f8d60a6e2b2001bb253"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a6b9966cf231b3c7363f3163611f7df2d"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a6b9966cf231b3c7363f3163611f7df2d"></a>
 </td><td class="memItemRight" valign="bottom"><b>File</b> (const <a class="el" href="classwreport_1_1sys_1_1File.html">File</a> &)=delete</td></tr>
<tr class="separator:a6b9966cf231b3c7363f3163611f7df2d"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a8e0ba4e69138663f76de276f81e2be4a"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a8e0ba4e69138663f76de276f81e2be4a"></a>
 </td><td class="memItemRight" valign="bottom"><a class="el" href="classwreport_1_1sys_1_1File.html#a8e0ba4e69138663f76de276f81e2be4a">File</a> (const std::string &pathname)</td></tr>
<tr class="memdesc:a8e0ba4e69138663f76de276f81e2be4a"><td class="mdescLeft"> </td><td class="mdescRight">Create an unopened <a class="el" href="classwreport_1_1sys_1_1File.html" title="open(2) file descriptors ">File</a> object for the given pathname. <br /></td></tr>
<tr class="separator:a8e0ba4e69138663f76de276f81e2be4a"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a50f08e7763161406755d1827cb8fcaa4"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a50f08e7763161406755d1827cb8fcaa4"></a>
 </td><td class="memItemRight" valign="bottom"><a class="el" href="classwreport_1_1sys_1_1File.html#a50f08e7763161406755d1827cb8fcaa4">File</a> (const std::string &pathname, int flags, mode_t mode=0777)</td></tr>
<tr class="memdesc:a50f08e7763161406755d1827cb8fcaa4"><td class="mdescLeft"> </td><td class="mdescRight">Wrapper around open(2) <br /></td></tr>
<tr class="separator:a50f08e7763161406755d1827cb8fcaa4"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a1c9692459cae9d7ea6c4bb8abe236a8e"><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="classwreport_1_1sys_1_1File.html#a1c9692459cae9d7ea6c4bb8abe236a8e">~File</a> ()</td></tr>
<tr class="memdesc:a1c9692459cae9d7ea6c4bb8abe236a8e"><td class="mdescLeft"> </td><td class="mdescRight">The destructor closes the file descriptor, but does not check errors on ::close(). <a href="#a1c9692459cae9d7ea6c4bb8abe236a8e">More...</a><br /></td></tr>
<tr class="separator:a1c9692459cae9d7ea6c4bb8abe236a8e"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a035e86f3644f8408dd0dbb1c84fb39ac"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a035e86f3644f8408dd0dbb1c84fb39ac"></a>
<a class="el" href="classwreport_1_1sys_1_1File.html">File</a> & </td><td class="memItemRight" valign="bottom"><b>operator=</b> (const <a class="el" href="classwreport_1_1sys_1_1File.html">File</a> &)=delete</td></tr>
<tr class="separator:a035e86f3644f8408dd0dbb1c84fb39ac"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a566042aa19dd189dcd44719f24e01f99"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a566042aa19dd189dcd44719f24e01f99"></a>
<a class="el" href="classwreport_1_1sys_1_1File.html">File</a> & </td><td class="memItemRight" valign="bottom"><b>operator=</b> (<a class="el" href="classwreport_1_1sys_1_1File.html">File</a> &&)=default</td></tr>
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<tr class="memitem:a0bb76c95444057e355f5b51bc2593d97"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a0bb76c95444057e355f5b51bc2593d97"></a>
void </td><td class="memItemRight" valign="bottom"><a class="el" href="classwreport_1_1sys_1_1File.html#a0bb76c95444057e355f5b51bc2593d97">open</a> (int flags, mode_t mode=0777)</td></tr>
<tr class="memdesc:a0bb76c95444057e355f5b51bc2593d97"><td class="mdescLeft"> </td><td class="mdescRight">Wrapper around open(2) <br /></td></tr>
<tr class="separator:a0bb76c95444057e355f5b51bc2593d97"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:adfe5ad9d1e9fe4491c743dcfa13937a0"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="adfe5ad9d1e9fe4491c743dcfa13937a0"></a>
bool </td><td class="memItemRight" valign="bottom"><a class="el" href="classwreport_1_1sys_1_1File.html#adfe5ad9d1e9fe4491c743dcfa13937a0">open_ifexists</a> (int flags, mode_t mode=0777)</td></tr>
<tr class="memdesc:adfe5ad9d1e9fe4491c743dcfa13937a0"><td class="mdescLeft"> </td><td class="mdescRight">Wrap open(2) and return false instead of throwing an exception if open fails with ENOENT. <br /></td></tr>
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<tr class="inherit_header pub_methods_classwreport_1_1sys_1_1NamedFileDescriptor"><td colspan="2" onclick="javascript:toggleInherit('pub_methods_classwreport_1_1sys_1_1NamedFileDescriptor')"><img src="closed.png" alt="-"/> Public Member Functions inherited from <a class="el" href="classwreport_1_1sys_1_1NamedFileDescriptor.html">wreport::sys::NamedFileDescriptor</a></td></tr>
<tr class="memitem:a580d36d0817a1fe55c554927ff34fb5a inherit pub_methods_classwreport_1_1sys_1_1NamedFileDescriptor"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a580d36d0817a1fe55c554927ff34fb5a"></a>
 </td><td class="memItemRight" valign="bottom"><b>NamedFileDescriptor</b> (int fd, const std::string &pathname)</td></tr>
<tr class="separator:a580d36d0817a1fe55c554927ff34fb5a inherit pub_methods_classwreport_1_1sys_1_1NamedFileDescriptor"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:aa08ee633e54364744d828e2810edd83b inherit pub_methods_classwreport_1_1sys_1_1NamedFileDescriptor"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="aa08ee633e54364744d828e2810edd83b"></a>
 </td><td class="memItemRight" valign="bottom"><b>NamedFileDescriptor</b> (<a class="el" href="classwreport_1_1sys_1_1NamedFileDescriptor.html">NamedFileDescriptor</a> &&)</td></tr>
<tr class="separator:aa08ee633e54364744d828e2810edd83b inherit pub_methods_classwreport_1_1sys_1_1NamedFileDescriptor"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:abd9a18950b181ac8d6e36224fb9a84b6 inherit pub_methods_classwreport_1_1sys_1_1NamedFileDescriptor"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="abd9a18950b181ac8d6e36224fb9a84b6"></a>
<a class="el" href="classwreport_1_1sys_1_1NamedFileDescriptor.html">NamedFileDescriptor</a> & </td><td class="memItemRight" valign="bottom"><b>operator=</b> (<a class="el" href="classwreport_1_1sys_1_1NamedFileDescriptor.html">NamedFileDescriptor</a> &&)</td></tr>
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<tr class="memitem:a2edc2e9776c3c9165005066887aa15b4 inherit pub_methods_classwreport_1_1sys_1_1NamedFileDescriptor"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a2edc2e9776c3c9165005066887aa15b4"></a>
 </td><td class="memItemRight" valign="bottom"><b>NamedFileDescriptor</b> (const <a class="el" href="classwreport_1_1sys_1_1NamedFileDescriptor.html">NamedFileDescriptor</a> &o)=default</td></tr>
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<tr class="memitem:aeaafb4f2d4b72ba6a6712b67b0b71317 inherit pub_methods_classwreport_1_1sys_1_1NamedFileDescriptor"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="aeaafb4f2d4b72ba6a6712b67b0b71317"></a>
<a class="el" href="classwreport_1_1sys_1_1NamedFileDescriptor.html">NamedFileDescriptor</a> & </td><td class="memItemRight" valign="bottom"><b>operator=</b> (const <a class="el" href="classwreport_1_1sys_1_1NamedFileDescriptor.html">NamedFileDescriptor</a> &o)=default</td></tr>
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<tr class="memitem:af48d4a2762cc96028790d49ec1942f84 inherit pub_methods_classwreport_1_1sys_1_1NamedFileDescriptor"><td class="memItemLeft" align="right" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="classwreport_1_1sys_1_1NamedFileDescriptor.html#af48d4a2762cc96028790d49ec1942f84">throw_error</a> (const char *desc)</td></tr>
<tr class="memdesc:af48d4a2762cc96028790d49ec1942f84 inherit pub_methods_classwreport_1_1sys_1_1NamedFileDescriptor"><td class="mdescLeft"> </td><td class="mdescRight">Throw an exception based on errno and the given message. <a href="#af48d4a2762cc96028790d49ec1942f84">More...</a><br /></td></tr>
<tr class="separator:af48d4a2762cc96028790d49ec1942f84 inherit pub_methods_classwreport_1_1sys_1_1NamedFileDescriptor"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a997b6bb787ece80d723752fbf7adfc9e inherit pub_methods_classwreport_1_1sys_1_1NamedFileDescriptor"><td class="memItemLeft" align="right" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="classwreport_1_1sys_1_1NamedFileDescriptor.html#a997b6bb787ece80d723752fbf7adfc9e">throw_runtime_error</a> (const char *desc)</td></tr>
<tr class="memdesc:a997b6bb787ece80d723752fbf7adfc9e inherit pub_methods_classwreport_1_1sys_1_1NamedFileDescriptor"><td class="mdescLeft"> </td><td class="mdescRight">Throw a runtime_error unrelated from errno. <a href="#a997b6bb787ece80d723752fbf7adfc9e">More...</a><br /></td></tr>
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<tr class="memitem:a1c500df0d35303469947540e877d54af inherit pub_methods_classwreport_1_1sys_1_1NamedFileDescriptor"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a1c500df0d35303469947540e877d54af"></a>
const std::string & </td><td class="memItemRight" valign="bottom"><a class="el" href="classwreport_1_1sys_1_1NamedFileDescriptor.html#a1c500df0d35303469947540e877d54af">name</a> () const </td></tr>
<tr class="memdesc:a1c500df0d35303469947540e877d54af inherit pub_methods_classwreport_1_1sys_1_1NamedFileDescriptor"><td class="mdescLeft"> </td><td class="mdescRight">Return the file pathname. <br /></td></tr>
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<tr class="inherit_header pub_methods_classwreport_1_1sys_1_1FileDescriptor"><td colspan="2" onclick="javascript:toggleInherit('pub_methods_classwreport_1_1sys_1_1FileDescriptor')"><img src="closed.png" alt="-"/> Public Member Functions inherited from <a class="el" href="classwreport_1_1sys_1_1FileDescriptor.html">wreport::sys::FileDescriptor</a></td></tr>
<tr class="memitem:a790dd94a76ef01897ef6d948fb43f69a inherit pub_methods_classwreport_1_1sys_1_1FileDescriptor"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a790dd94a76ef01897ef6d948fb43f69a"></a>
 </td><td class="memItemRight" valign="bottom"><b>FileDescriptor</b> (<a class="el" href="classwreport_1_1sys_1_1FileDescriptor.html">FileDescriptor</a> &&o)</td></tr>
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 </td><td class="memItemRight" valign="bottom"><b>FileDescriptor</b> (int fd)</td></tr>
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 </td><td class="memItemRight" valign="bottom"><b>FileDescriptor</b> (const <a class="el" href="classwreport_1_1sys_1_1FileDescriptor.html">FileDescriptor</a> &o)=default</td></tr>
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<tr class="memitem:a1f063c3bb85834c0f8961ccd3605b449 inherit pub_methods_classwreport_1_1sys_1_1FileDescriptor"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a1f063c3bb85834c0f8961ccd3605b449"></a>
<a class="el" href="classwreport_1_1sys_1_1FileDescriptor.html">FileDescriptor</a> & </td><td class="memItemRight" valign="bottom"><b>operator=</b> (const <a class="el" href="classwreport_1_1sys_1_1FileDescriptor.html">FileDescriptor</a> &o)=default</td></tr>
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void </td><td class="memItemRight" valign="bottom"><b>close</b> ()</td></tr>
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void </td><td class="memItemRight" valign="bottom"><b>fstat</b> (struct stat &st)</td></tr>
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void </td><td class="memItemRight" valign="bottom"><b>fchmod</b> (mode_t mode)</td></tr>
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int </td><td class="memItemRight" valign="bottom"><b>dup</b> ()</td></tr>
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size_t </td><td class="memItemRight" valign="bottom"><b>read</b> (void *buf, size_t count)</td></tr>
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void </td><td class="memItemRight" valign="bottom"><a class="el" href="classwreport_1_1sys_1_1FileDescriptor.html#ad25f1cf7b87dd32ad861109c2eb6af0b">read_all_or_throw</a> (void *buf, size_t count)</td></tr>
<tr class="memdesc:ad25f1cf7b87dd32ad861109c2eb6af0b inherit pub_methods_classwreport_1_1sys_1_1FileDescriptor"><td class="mdescLeft"> </td><td class="mdescRight">Read all the data into buf, throwing runtime_error in case of a partial read. <br /></td></tr>
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size_t </td><td class="memItemRight" valign="bottom"><b>write</b> (const void *buf, size_t count)</td></tr>
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template<typename Container > </td></tr>
<tr class="memitem:a7301fc74adf7bf403555d5dc092333d8 inherit pub_methods_classwreport_1_1sys_1_1FileDescriptor"><td class="memTemplItemLeft" align="right" valign="top">size_t </td><td class="memTemplItemRight" valign="bottom"><b>write</b> (const Container &c)</td></tr>
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void </td><td class="memItemRight" valign="bottom"><a class="el" href="classwreport_1_1sys_1_1FileDescriptor.html#a353886ff759002fc73a807a61e550b1c">write_all_or_retry</a> (const void *buf, size_t count)</td></tr>
<tr class="memdesc:a353886ff759002fc73a807a61e550b1c inherit pub_methods_classwreport_1_1sys_1_1FileDescriptor"><td class="mdescLeft"> </td><td class="mdescRight">Write all the data in buf, retrying partial writes. <br /></td></tr>
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template<typename Container > </td></tr>
<tr class="memitem:a9b8bbe01bd31cb68d9153ece0ce5866d inherit pub_methods_classwreport_1_1sys_1_1FileDescriptor"><td class="memTemplItemLeft" align="right" valign="top">void </td><td class="memTemplItemRight" valign="bottom"><b>write_all_or_retry</b> (const Container &c)</td></tr>
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<tr class="memitem:ab794bc5fc0cd05ba9f98f408841b337c inherit pub_methods_classwreport_1_1sys_1_1FileDescriptor"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="ab794bc5fc0cd05ba9f98f408841b337c"></a>
void </td><td class="memItemRight" valign="bottom"><a class="el" href="classwreport_1_1sys_1_1FileDescriptor.html#ab794bc5fc0cd05ba9f98f408841b337c">write_all_or_throw</a> (const void *buf, size_t count)</td></tr>
<tr class="memdesc:ab794bc5fc0cd05ba9f98f408841b337c inherit pub_methods_classwreport_1_1sys_1_1FileDescriptor"><td class="mdescLeft"> </td><td class="mdescRight">Write all the data in buf, throwing runtime_error in case of a partial write. <br /></td></tr>
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<tr class="memitem:a6ef85c018873737c818c7c0456ec3ac3 inherit pub_methods_classwreport_1_1sys_1_1FileDescriptor"><td class="memTemplParams" colspan="2"><a class="anchor" id="a6ef85c018873737c818c7c0456ec3ac3"></a>
template<typename Container > </td></tr>
<tr class="memitem:a6ef85c018873737c818c7c0456ec3ac3 inherit pub_methods_classwreport_1_1sys_1_1FileDescriptor"><td class="memTemplItemLeft" align="right" valign="top">void </td><td class="memTemplItemRight" valign="bottom"><b>write_all_or_throw</b> (const Container &c)</td></tr>
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off_t </td><td class="memItemRight" valign="bottom"><b>lseek</b> (off_t offset, int whence=SEEK_SET)</td></tr>
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size_t </td><td class="memItemRight" valign="bottom"><b>pread</b> (void *buf, size_t count, off_t offset)</td></tr>
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size_t </td><td class="memItemRight" valign="bottom"><b>pwrite</b> (const void *buf, size_t count, off_t offset)</td></tr>
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<tr class="memitem:a7995b586f3842c7a366f56ffcd4a725f inherit pub_methods_classwreport_1_1sys_1_1FileDescriptor"><td class="memTemplParams" colspan="2"><a class="anchor" id="a7995b586f3842c7a366f56ffcd4a725f"></a>
template<typename Container > </td></tr>
<tr class="memitem:a7995b586f3842c7a366f56ffcd4a725f inherit pub_methods_classwreport_1_1sys_1_1FileDescriptor"><td class="memTemplItemLeft" align="right" valign="top">size_t </td><td class="memTemplItemRight" valign="bottom"><b>pwrite</b> (const Container &c, off_t offset)</td></tr>
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void </td><td class="memItemRight" valign="bottom"><b>ftruncate</b> (off_t length)</td></tr>
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<a class="el" href="classwreport_1_1sys_1_1MMap.html">MMap</a> </td><td class="memItemRight" valign="bottom"><b>mmap</b> (size_t length, int prot, int flags, off_t offset=0)</td></tr>
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 </td><td class="memItemRight" valign="bottom"><b>operator int</b> () const </td></tr>
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</table><table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pub-static-methods"></a>
Static Public Member Functions</h2></td></tr>
<tr class="memitem:a3bdb3f2a5748cb865e74cdbaa93f4c50"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a3bdb3f2a5748cb865e74cdbaa93f4c50"></a>
static <a class="el" href="classwreport_1_1sys_1_1File.html">File</a> </td><td class="memItemRight" valign="bottom"><b>mkstemp</b> (const std::string &prefix)</td></tr>
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</table><table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="inherited"></a>
Additional Inherited Members</h2></td></tr>
<tr class="inherit_header pro_attribs_classwreport_1_1sys_1_1NamedFileDescriptor"><td colspan="2" onclick="javascript:toggleInherit('pro_attribs_classwreport_1_1sys_1_1NamedFileDescriptor')"><img src="closed.png" alt="-"/> Protected Attributes inherited from <a class="el" href="classwreport_1_1sys_1_1NamedFileDescriptor.html">wreport::sys::NamedFileDescriptor</a></td></tr>
<tr class="memitem:ae66517b3289dac35edf94f05baff1325 inherit pro_attribs_classwreport_1_1sys_1_1NamedFileDescriptor"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="ae66517b3289dac35edf94f05baff1325"></a>
std::string </td><td class="memItemRight" valign="bottom"><b>pathname</b></td></tr>
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<tr class="inherit_header pro_attribs_classwreport_1_1sys_1_1FileDescriptor"><td colspan="2" onclick="javascript:toggleInherit('pro_attribs_classwreport_1_1sys_1_1FileDescriptor')"><img src="closed.png" alt="-"/> Protected Attributes inherited from <a class="el" href="classwreport_1_1sys_1_1FileDescriptor.html">wreport::sys::FileDescriptor</a></td></tr>
<tr class="memitem:adbdd8b349209226f76655137329474f1 inherit pro_attribs_classwreport_1_1sys_1_1FileDescriptor"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="adbdd8b349209226f76655137329474f1"></a>
int </td><td class="memItemRight" valign="bottom"><b>fd</b> = -1</td></tr>
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</table>
<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<div class="textblock"><p>open(2) file descriptors </p>
</div><h2 class="groupheader">Constructor & Destructor Documentation</h2>
<a class="anchor" id="a1c9692459cae9d7ea6c4bb8abe236a8e"></a>
<div class="memitem">
<div class="memproto">
<table class="memname">
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<td class="memname">wreport::sys::File::~File </td>
<td>(</td>
<td class="paramname"></td><td>)</td>
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</tr>
</table>
</div><div class="memdoc">
<p>The destructor closes the file descriptor, but does not check errors on ::close(). </p>
<p>In normal program flow, it is a good idea to explicitly call File::close() in places where it can throw safely. </p>
</div>
</div>
<hr/>The documentation for this class was generated from the following file:<ul>
<li><a class="el" href="sys_8h_source.html">sys.h</a></li>
</ul>
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