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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "https://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
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<a href="#typedef-members">Typedefs</a> |
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<div class="headertitle"><div class="title">fuse_log.h File Reference</div></div>
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<div class="textblock"><code>#include <stdarg.h></code><br />
</div>
<p><a href="include_2fuse__log_8h_source.html">Go to the source code of this file.</a></p>
<table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a id="typedef-members" name="typedef-members"></a>
Typedefs</h2></td></tr>
<tr class="memitem:a76d80f5bae796dddb1d6b6a121968666" id="r_a76d80f5bae796dddb1d6b6a121968666"><td class="memItemLeft" align="right" valign="top">typedef void(* </td><td class="memItemRight" valign="bottom"><a class="el" href="include_2fuse__log_8h.html#a76d80f5bae796dddb1d6b6a121968666">fuse_log_func_t</a>) (enum <a class="el" href="fuse-3_817_83_2include_2fuse__log_8h.html#ad2c3b50473593e65865abaad574bd039">fuse_log_level</a> level, const char *fmt, va_list ap)</td></tr>
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Enumerations</h2></td></tr>
<tr class="memitem:ad2c3b50473593e65865abaad574bd039" id="r_ad2c3b50473593e65865abaad574bd039"><td class="memItemLeft" align="right" valign="top">enum  </td><td class="memItemRight" valign="bottom"><a class="el" href="include_2fuse__log_8h.html#ad2c3b50473593e65865abaad574bd039">fuse_log_level</a> </td></tr>
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Functions</h2></td></tr>
<tr class="memitem:af19307887778edec299c02c1e858addd" id="r_af19307887778edec299c02c1e858addd"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="include_2fuse__log_8h.html#af19307887778edec299c02c1e858addd">fuse_set_log_func</a> (<a class="el" href="fuse-3_817_83_2include_2fuse__log_8h.html#a76d80f5bae796dddb1d6b6a121968666">fuse_log_func_t</a> func)</td></tr>
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<tr class="memitem:a71cb594537921f3ff2ef0ca28173c198" id="r_a71cb594537921f3ff2ef0ca28173c198"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="include_2fuse__log_8h.html#a71cb594537921f3ff2ef0ca28173c198">fuse_log</a> (enum <a class="el" href="fuse-3_817_83_2include_2fuse__log_8h.html#ad2c3b50473593e65865abaad574bd039">fuse_log_level</a> level, const char *fmt,...) __attribute__((format(printf</td></tr>
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<tr class="memitem:ab6ec263c62b5a34be03c381942b3554e" id="r_ab6ec263c62b5a34be03c381942b3554e"><td class="memItemLeft" align="right" valign="top">void void </td><td class="memItemRight" valign="bottom"><a class="el" href="include_2fuse__log_8h.html#ab6ec263c62b5a34be03c381942b3554e">fuse_log_enable_syslog</a> (const char *ident, int option, int facility)</td></tr>
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<tr class="memitem:a18631fd738519af89db82de2ea7c0034" id="r_a18631fd738519af89db82de2ea7c0034"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="include_2fuse__log_8h.html#a18631fd738519af89db82de2ea7c0034">fuse_log_close_syslog</a> (void)</td></tr>
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<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<div class="textblock"><p>This file defines the logging interface of FUSE </p>
<p class="definition">Definition in file <a class="el" href="include_2fuse__log_8h_source.html">fuse_log.h</a>.</p>
</div><h2 class="groupheader">Typedef Documentation</h2>
<a id="a76d80f5bae796dddb1d6b6a121968666" name="a76d80f5bae796dddb1d6b6a121968666"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a76d80f5bae796dddb1d6b6a121968666">◆ </a></span>fuse_log_func_t</h2>
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<td class="memname">typedef void(* fuse_log_func_t) (enum <a class="el" href="fuse-3_817_83_2include_2fuse__log_8h.html#ad2c3b50473593e65865abaad574bd039">fuse_log_level</a> level, const char *fmt, va_list ap)</td>
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<p>Log message handler function.</p>
<p>This function must be thread-safe. It may be called from any libfuse function, including fuse_parse_cmdline() and other functions invoked before a FUSE filesystem is created.</p>
<p>Install a custom log message handler function using <a class="el" href="fuse-3_817_83_2include_2fuse__log_8h.html#af19307887778edec299c02c1e858addd">fuse_set_log_func()</a>.</p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">level</td><td>log severity level </td></tr>
<tr><td class="paramname">fmt</td><td>sprintf-style format string including newline </td></tr>
<tr><td class="paramname">ap</td><td>format string arguments </td></tr>
</table>
</dd>
</dl>
<p class="definition">Definition at line <a class="el" href="include_2fuse__log_8h_source.html#l00052">52</a> of file <a class="el" href="include_2fuse__log_8h_source.html">fuse_log.h</a>.</p>
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<h2 class="groupheader">Enumeration Type Documentation</h2>
<a id="ad2c3b50473593e65865abaad574bd039" name="ad2c3b50473593e65865abaad574bd039"></a>
<h2 class="memtitle"><span class="permalink"><a href="#ad2c3b50473593e65865abaad574bd039">◆ </a></span>fuse_log_level</h2>
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<td class="memname">enum <a class="el" href="fuse-3_817_83_2include_2fuse__log_8h.html#ad2c3b50473593e65865abaad574bd039">fuse_log_level</a></td>
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<p>Log severity level</p>
<p>These levels correspond to syslog(2) log levels since they are widely used. </p>
<p class="definition">Definition at line <a class="el" href="include_2fuse__log_8h_source.html#l00028">28</a> of file <a class="el" href="include_2fuse__log_8h_source.html">fuse_log.h</a>.</p>
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<h2 class="groupheader">Function Documentation</h2>
<a id="a71cb594537921f3ff2ef0ca28173c198" name="a71cb594537921f3ff2ef0ca28173c198"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a71cb594537921f3ff2ef0ca28173c198">◆ </a></span>fuse_log()</h2>
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<td class="memname">void fuse_log </td>
<td>(</td>
<td class="paramtype">enum <a class="el" href="fuse-3_817_83_2include_2fuse__log_8h.html#ad2c3b50473593e65865abaad574bd039">fuse_log_level</a> </td>
<td class="paramname"><em>level</em>, </td>
</tr>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">const char * </td>
<td class="paramname"><em>fmt</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype"> </td>
<td class="paramname"><em>...</em> </td>
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<td>)</td>
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<p>Emit a log message</p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">level</td><td>severity level (FUSE_LOG_ERR, FUSE_LOG_DEBUG, etc) </td></tr>
<tr><td class="paramname">fmt</td><td>sprintf-style format string including newline </td></tr>
</table>
</dd>
</dl>
<p class="definition">Definition at line <a class="el" href="fuse-3_817_83_2lib_2fuse__log_8c_source.html#l00076">76</a> of file <a class="el" href="fuse-3_817_83_2lib_2fuse__log_8c_source.html">fuse_log.c</a>.</p>
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<a id="a18631fd738519af89db82de2ea7c0034" name="a18631fd738519af89db82de2ea7c0034"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a18631fd738519af89db82de2ea7c0034">◆ </a></span>fuse_log_close_syslog()</h2>
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<td class="memname">void fuse_log_close_syslog </td>
<td>(</td>
<td class="paramtype">void </td>
<td class="paramname"></td><td>)</td>
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<p>To be called at teardown to close syslog. </p>
<p class="definition">Definition at line <a class="el" href="fuse-3_817_83_2lib_2fuse__log_8c_source.html#l00093">93</a> of file <a class="el" href="fuse-3_817_83_2lib_2fuse__log_8c_source.html">fuse_log.c</a>.</p>
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<a id="ab6ec263c62b5a34be03c381942b3554e" name="ab6ec263c62b5a34be03c381942b3554e"></a>
<h2 class="memtitle"><span class="permalink"><a href="#ab6ec263c62b5a34be03c381942b3554e">◆ </a></span>fuse_log_enable_syslog()</h2>
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<td class="memname">void void fuse_log_enable_syslog </td>
<td>(</td>
<td class="paramtype">const char * </td>
<td class="paramname"><em>ident</em>, </td>
</tr>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">int </td>
<td class="paramname"><em>option</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">int </td>
<td class="paramname"><em>facility</em> </td>
</tr>
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<td></td>
<td>)</td>
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<p>Switch default log handler from stderr to syslog</p>
<p>Passed options are according to 'man 3 openlog' </p>
<p class="definition">Definition at line <a class="el" href="fuse-3_817_83_2lib_2fuse__log_8c_source.html#l00086">86</a> of file <a class="el" href="fuse-3_817_83_2lib_2fuse__log_8c_source.html">fuse_log.c</a>.</p>
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<a id="af19307887778edec299c02c1e858addd" name="af19307887778edec299c02c1e858addd"></a>
<h2 class="memtitle"><span class="permalink"><a href="#af19307887778edec299c02c1e858addd">◆ </a></span>fuse_set_log_func()</h2>
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<td class="memname">void fuse_set_log_func </td>
<td>(</td>
<td class="paramtype"><a class="el" href="fuse-3_817_83_2include_2fuse__log_8h.html#a76d80f5bae796dddb1d6b6a121968666">fuse_log_func_t</a> </td>
<td class="paramname"><em>func</em></td><td>)</td>
<td></td>
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<p>Install a custom log handler function.</p>
<p>Log messages are emitted by libfuse functions to report errors and debug information. Messages are printed to stderr by default but this can be overridden by installing a custom log message handler function.</p>
<p>The log message handler function is global and affects all FUSE filesystems created within this process.</p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">func</td><td>a custom log message handler function or NULL to revert to the default </td></tr>
</table>
</dd>
</dl>
<p class="definition">Definition at line <a class="el" href="fuse-3_817_83_2lib_2fuse__log_8c_source.html#l00069">69</a> of file <a class="el" href="fuse-3_817_83_2lib_2fuse__log_8c_source.html">fuse_log.c</a>.</p>
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