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<title>LCOV - lcov.info - cmdline/touch.c</title>
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<tr><td class="title">LCOV - code coverage report</td></tr>
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<td width="10%" class="headerItem">Current view:</td>
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<td width="35%" class="headerValue"><a href="../index.html">top level</a> - <a href="index.html">cmdline</a> - touch.c<span style="font-size: 80%;"> (source / <a href="touch.c.func-sort-c.html">functions</a>)</span></td>
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<td width="10%" class="headerCovTableHead">Hit</td>
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<td width="10%" class="headerCovTableHead">Total</td>
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<td width="15%" class="headerCovTableHead">Coverage</td>
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<td class="headerItem">Test:</td>
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<td class="headerValue">lcov.info</td>
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<td></td>
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<td class="headerItem">Lines:</td>
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<td class="headerCovTableEntry">28</td>
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<td class="headerCovTableEntry">28</td>
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<td class="headerCovTableEntryHi">100.0 %</td>
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<tr>
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<td class="headerItem">Date:</td>
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<td class="headerValue">2026-03-15 15:58:19</td>
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<td></td>
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<td class="headerItem">Functions:</td>
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<td class="headerCovTableEntry">1</td>
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<td class="headerCovTableEntry">1</td>
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<td class="headerCovTableEntryHi">100.0 %</td>
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</tr>
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<tr><td><img src="../glass.png" width=3 height=3 alt=""></td></tr>
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<pre class="sourceHeading"> Line data Source code</pre>
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<pre class="source">
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<a name="1"><span class="lineNum"> 1 </span> : /*</a>
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<a name="2"><span class="lineNum"> 2 </span> : * Copyright (C) 2014 Andrea Mazzoleni</a>
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<a name="3"><span class="lineNum"> 3 </span> : *</a>
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<a name="4"><span class="lineNum"> 4 </span> : * This program is free software: you can redistribute it and/or modify</a>
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<a name="5"><span class="lineNum"> 5 </span> : * it under the terms of the GNU General Public License as published by</a>
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<a name="6"><span class="lineNum"> 6 </span> : * the Free Software Foundation, either version 3 of the License, or</a>
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<a name="7"><span class="lineNum"> 7 </span> : * (at your option) any later version.</a>
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<a name="8"><span class="lineNum"> 8 </span> : *</a>
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<a name="9"><span class="lineNum"> 9 </span> : * This program is distributed in the hope that it will be useful,</a>
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<a name="10"><span class="lineNum"> 10 </span> : * but WITHOUT ANY WARRANTY; without even the implied warranty of</a>
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<a name="11"><span class="lineNum"> 11 </span> : * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the</a>
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<a name="12"><span class="lineNum"> 12 </span> : * GNU General Public License for more details.</a>
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<a name="13"><span class="lineNum"> 13 </span> : *</a>
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<a name="14"><span class="lineNum"> 14 </span> : * You should have received a copy of the GNU General Public License</a>
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<a name="15"><span class="lineNum"> 15 </span> : * along with this program. If not, see <http://www.gnu.org/licenses/>.</a>
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<a name="16"><span class="lineNum"> 16 </span> : */</a>
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<a name="17"><span class="lineNum"> 17 </span> : </a>
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<a name="18"><span class="lineNum"> 18 </span> : #include "portable.h"</a>
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<a name="19"><span class="lineNum"> 19 </span> : </a>
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<a name="20"><span class="lineNum"> 20 </span> : #include "support.h"</a>
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<a name="21"><span class="lineNum"> 21 </span> : #include "elem.h"</a>
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<a name="22"><span class="lineNum"> 22 </span> : #include "state.h"</a>
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<a name="23"><span class="lineNum"> 23 </span> : #include "handle.h"</a>
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<a name="24"><span class="lineNum"> 24 </span> : </a>
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<a name="25"><span class="lineNum"> 25 </span><span class="lineCov"> 1 : void state_touch(struct snapraid_state* state)</span></a>
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<a name="26"><span class="lineNum"> 26 </span> : {</a>
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<a name="27"><span class="lineNum"> 27 </span> : tommy_node* i;</a>
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<a name="28"><span class="lineNum"> 28 </span> : char esc_buffer[ESC_MAX];</a>
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<a name="29"><span class="lineNum"> 29 </span> : </a>
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<a name="30"><span class="lineNum"> 30 </span><span class="lineCov"> 1 : msg_progress("Setting sub-second timestamps...\n");</span></a>
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<a name="31"><span class="lineNum"> 31 </span> : </a>
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<a name="32"><span class="lineNum"> 32 </span> : /* for all disks */</a>
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<a name="33"><span class="lineNum"> 33 </span><span class="lineCov"> 7 : for (i = state->disklist; i != 0; i = i->next) {</span></a>
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<a name="34"><span class="lineNum"> 34 </span><span class="lineCov"> 6 : struct snapraid_disk* disk = i->data;</span></a>
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<a name="35"><span class="lineNum"> 35 </span> : tommy_node* j;</a>
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<a name="36"><span class="lineNum"> 36 </span> : </a>
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<a name="37"><span class="lineNum"> 37 </span> : /* for all files */</a>
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<a name="38"><span class="lineNum"> 38 </span><span class="lineCov"> 5734 : for (j = disk->filelist; j != 0; j = j->next) {</span></a>
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<a name="39"><span class="lineNum"> 39 </span><span class="lineCov"> 5728 : struct snapraid_file* file = j->data;</span></a>
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<a name="40"><span class="lineNum"> 40 </span> : </a>
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<a name="41"><span class="lineNum"> 41 </span> : /* if the file has a zero nanosecond timestamp */</a>
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<a name="42"><span class="lineNum"> 42 </span> : /* note that symbolic links are not in the file list */</a>
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<a name="43"><span class="lineNum"> 43 </span> : /* and then are not processed */</a>
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<a name="44"><span class="lineNum"> 44 </span><span class="lineCov"> 5728 : if (file->mtime_nsec == 0) {</span></a>
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<a name="45"><span class="lineNum"> 45 </span> : char path[PATH_MAX];</a>
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<a name="46"><span class="lineNum"> 46 </span> : struct stat st;</a>
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<a name="47"><span class="lineNum"> 47 </span> : int f;</a>
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<a name="48"><span class="lineNum"> 48 </span> : int ret;</a>
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<a name="49"><span class="lineNum"> 49 </span> : int nsec;</a>
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<a name="50"><span class="lineNum"> 50 </span> : int flags;</a>
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<a name="51"><span class="lineNum"> 51 </span> : </a>
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<a name="52"><span class="lineNum"> 52 </span><span class="lineCov"> 16 : pathprint(path, sizeof(path), "%s%s", disk->dir, file->sub);</span></a>
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<a name="53"><span class="lineNum"> 53 </span> : </a>
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<a name="54"><span class="lineNum"> 54 </span> : /* set a new nanosecond timestamp different than 0 */</a>
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<a name="55"><span class="lineNum"> 55 </span> : do {</a>
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<a name="56"><span class="lineNum"> 56 </span> : uint32_t nano;</a>
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<a name="57"><span class="lineNum"> 57 </span> : </a>
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<a name="58"><span class="lineNum"> 58 </span> : /* get a random nanosecond value */</a>
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<a name="59"><span class="lineNum"> 59 </span><span class="lineCov"> 16 : if (randomize(&nano, sizeof(nano)) != 0) {</span></a>
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<a name="60"><span class="lineNum"> 60 </span> : /* LCOV_EXCL_START */</a>
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<a name="61"><span class="lineNum"> 61 </span> : log_fatal(errno, "Failed to retrieve random values.\n");</a>
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<a name="62"><span class="lineNum"> 62 </span> : exit(EXIT_FAILURE);</a>
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<a name="63"><span class="lineNum"> 63 </span> : /* LCOV_EXCL_STOP */</a>
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<a name="64"><span class="lineNum"> 64 </span> : }</a>
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<a name="65"><span class="lineNum"> 65 </span> : </a>
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<a name="66"><span class="lineNum"> 66 </span><span class="lineCov"> 16 : nsec = nano % 1000000000;</span></a>
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<a name="67"><span class="lineNum"> 67 </span><span class="lineCov"> 16 : } while (nsec == 0);</span></a>
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<a name="68"><span class="lineNum"> 68 </span> : </a>
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<a name="69"><span class="lineNum"> 69 </span> : /* O_BINARY: open as binary file (Windows only) */</a>
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<a name="70"><span class="lineNum"> 70 </span> : /* O_NOFOLLOW: do not follow links to ensure to open the real file */</a>
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<a name="71"><span class="lineNum"> 71 </span><span class="lineCov"> 16 : flags = O_BINARY | O_NOFOLLOW;</span></a>
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<a name="72"><span class="lineNum"> 72 </span> : #ifdef _WIN32</a>
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<a name="73"><span class="lineNum"> 73 </span> : /* in Windows we must have write access at the file */</a>
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<a name="74"><span class="lineNum"> 74 </span> : flags |= O_RDWR;</a>
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<a name="75"><span class="lineNum"> 75 </span> : #else</a>
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<a name="76"><span class="lineNum"> 76 </span> : /* in all others platforms, read access is enough */</a>
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<a name="77"><span class="lineNum"> 77 </span><span class="lineCov"> 16 : flags |= O_RDONLY;</span></a>
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<a name="78"><span class="lineNum"> 78 </span> : #endif</a>
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<a name="79"><span class="lineNum"> 79 </span> : </a>
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<a name="80"><span class="lineNum"> 80 </span> : /* open it */</a>
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<a name="81"><span class="lineNum"> 81 </span><span class="lineCov"> 16 : f = open(path, flags);</span></a>
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<a name="82"><span class="lineNum"> 82 </span><span class="lineCov"> 16 : if (f == -1) {</span></a>
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<a name="83"><span class="lineNum"> 83 </span> : /* LCOV_EXCL_START */</a>
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<a name="84"><span class="lineNum"> 84 </span> : log_error(errno, "Error opening file '%s'. %s.\n", path, strerror(errno));</a>
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<a name="85"><span class="lineNum"> 85 </span> : continue;</a>
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<a name="86"><span class="lineNum"> 86 </span> : /* LCOV_EXCL_STOP */</a>
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<a name="87"><span class="lineNum"> 87 </span> : }</a>
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<a name="88"><span class="lineNum"> 88 </span> : </a>
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<a name="89"><span class="lineNum"> 89 </span> : /* get the present timestamp, that may be different than the one */</a>
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<a name="90"><span class="lineNum"> 90 </span> : /* in the content file */</a>
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<a name="91"><span class="lineNum"> 91 </span><span class="lineCov"> 16 : ret = fstat(f, &st);</span></a>
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<a name="92"><span class="lineNum"> 92 </span><span class="lineCov"> 16 : if (ret == -1) {</span></a>
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<a name="93"><span class="lineNum"> 93 </span> : /* LCOV_EXCL_START */</a>
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<a name="94"><span class="lineNum"> 94 </span> : close(f);</a>
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<a name="95"><span class="lineNum"> 95 </span> : log_error(errno, "Error accessing file '%s'. %s.\n", path, strerror(errno));</a>
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<a name="96"><span class="lineNum"> 96 </span> : continue;</a>
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<a name="97"><span class="lineNum"> 97 </span> : /* LCOV_EXCL_STOP */</a>
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<a name="98"><span class="lineNum"> 98 </span> : }</a>
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<a name="99"><span class="lineNum"> 99 </span> : </a>
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<a name="100"><span class="lineNum"> 100 </span> : /* set the tweaked modification time, with new nano seconds */</a>
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<a name="101"><span class="lineNum"> 101 </span><span class="lineCov"> 16 : ret = fmtime(f, st.st_mtime, nsec);</span></a>
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<a name="102"><span class="lineNum"> 102 </span><span class="lineCov"> 16 : if (ret != 0) {</span></a>
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<a name="103"><span class="lineNum"> 103 </span> : /* LCOV_EXCL_START */</a>
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<a name="104"><span class="lineNum"> 104 </span> : close(f);</a>
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<a name="105"><span class="lineNum"> 105 </span> : log_error(errno, "Error timing file '%s'. %s.\n", path, strerror(errno));</a>
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<a name="106"><span class="lineNum"> 106 </span> : continue;</a>
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<a name="107"><span class="lineNum"> 107 </span> : /* LCOV_EXCL_STOP */</a>
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<a name="108"><span class="lineNum"> 108 </span> : }</a>
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<a name="109"><span class="lineNum"> 109 </span> : </a>
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<a name="110"><span class="lineNum"> 110 </span> : /* uses fstat again to get the present timestamp */</a>
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<a name="111"><span class="lineNum"> 111 </span> : /* this is needed because the value read */</a>
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<a name="112"><span class="lineNum"> 112 </span> : /* may be different than the written one */</a>
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<a name="113"><span class="lineNum"> 113 </span><span class="lineCov"> 16 : ret = fstat(f, &st);</span></a>
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<a name="114"><span class="lineNum"> 114 </span><span class="lineCov"> 16 : if (ret == -1) {</span></a>
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<a name="115"><span class="lineNum"> 115 </span> : /* LCOV_EXCL_START */</a>
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<a name="116"><span class="lineNum"> 116 </span> : close(f);</a>
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<a name="117"><span class="lineNum"> 117 </span> : log_error(errno, "Error accessing file '%s'. %s.\n", path, strerror(errno));</a>
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<a name="118"><span class="lineNum"> 118 </span> : continue;</a>
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<a name="119"><span class="lineNum"> 119 </span> : /* LCOV_EXCL_STOP */</a>
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<a name="120"><span class="lineNum"> 120 </span> : }</a>
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<a name="121"><span class="lineNum"> 121 </span> : </a>
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<a name="122"><span class="lineNum"> 122 </span> : /* close it */</a>
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<a name="123"><span class="lineNum"> 123 </span><span class="lineCov"> 16 : ret = close(f);</span></a>
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<a name="124"><span class="lineNum"> 124 </span><span class="lineCov"> 16 : if (ret != 0) {</span></a>
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<a name="125"><span class="lineNum"> 125 </span> : /* LCOV_EXCL_START */</a>
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<a name="126"><span class="lineNum"> 126 </span> : log_error(errno, "Error closing file '%s'. %s.\n", path, strerror(errno));</a>
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<a name="127"><span class="lineNum"> 127 </span> : continue;</a>
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<a name="128"><span class="lineNum"> 128 </span> : /* LCOV_EXCL_STOP */</a>
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<a name="129"><span class="lineNum"> 129 </span> : }</a>
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<a name="130"><span class="lineNum"> 130 </span> : </a>
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<a name="131"><span class="lineNum"> 131 </span> : /* set the same nanosecond value in the content file */</a>
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<a name="132"><span class="lineNum"> 132 </span> : /* note that if the seconds value is already matching */</a>
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<a name="133"><span class="lineNum"> 133 </span> : /* the file won't be synced because the content file will */</a>
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<a name="134"><span class="lineNum"> 134 </span> : /* contain the new updated timestamp */</a>
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<a name="135"><span class="lineNum"> 135 </span><span class="lineCov"> 16 : file->mtime_nsec = STAT_NSEC(&st);</span></a>
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<a name="136"><span class="lineNum"> 136 </span> : </a>
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<a name="137"><span class="lineNum"> 137 </span> : /* state changed, we need to update it */</a>
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<a name="138"><span class="lineNum"> 138 </span><span class="lineCov"> 16 : state->need_write = 1;</span></a>
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<a name="139"><span class="lineNum"> 139 </span> : </a>
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<a name="140"><span class="lineNum"> 140 </span><span class="lineCov"> 16 : log_tag("touch:%s:%s: %" PRIu64 ".%d\n", disk->name, esc_tag(file->sub, esc_buffer), (uint64_t)st.st_mtime, STAT_NSEC(&st));</span></a>
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<a name="141"><span class="lineNum"> 141 </span><span class="lineCov"> 16 : msg_info("touch %s\n", fmt_term(disk, file->sub, esc_buffer));</span></a>
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<a name="142"><span class="lineNum"> 142 </span> : }</a>
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<a name="143"><span class="lineNum"> 143 </span> : }</a>
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<a name="144"><span class="lineNum"> 144 </span> : }</a>
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<a name="145"><span class="lineNum"> 145 </span><span class="lineCov"> 1 : }</span></a>
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<a name="146"><span class="lineNum"> 146 </span> : </a>
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</pre>
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</td>
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</table>
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<br>
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<table width="100%" border=0 cellspacing=0 cellpadding=0>
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<tr><td class="ruler"><img src="../glass.png" width=3 height=3 alt=""></td></tr>
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<tr><td class="versionInfo">Generated by: <a href="https://github.com/linux-test-project/lcov" target="_parent">LCOV version 1.0</a></td></tr>
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