snapraid/cov/cmdline/handle.c.gcov.html
2015-12-28 16:31:46 +01:00

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<title>LCOV - lcov.info - cmdline/handle.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>
<td width="35%" class="headerValue"><a href="../index.html">top level</a> - <a href="index.html">cmdline</a> - handle.c<span style="font-size: 80%;"> (source / <a href="handle.c.func.html">functions</a>)</span></td>
<td width="5%"></td>
<td width="15%"></td>
<td width="10%" class="headerCovTableHead">Hit</td>
<td width="10%" class="headerCovTableHead">Total</td>
<td width="15%" class="headerCovTableHead">Coverage</td>
</tr>
<tr>
<td class="headerItem">Test:</td>
<td class="headerValue">lcov.info</td>
<td></td>
<td class="headerItem">Lines:</td>
<td class="headerCovTableEntry">126</td>
<td class="headerCovTableEntry">128</td>
<td class="headerCovTableEntryHi">98.4 %</td>
</tr>
<tr>
<td class="headerItem">Date:</td>
<td class="headerValue">2015-05-12</td>
<td></td>
<td class="headerItem">Functions:</td>
<td class="headerCovTableEntry">8</td>
<td class="headerCovTableEntry">8</td>
<td class="headerCovTableEntryHi">100.0 %</td>
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<pre class="sourceHeading"> Line data Source code</pre>
<pre class="source">
<a name="1"><span class="lineNum"> 1 </span> : /*</a>
<span class="lineNum"> 2 </span> : * Copyright (C) 2011 Andrea Mazzoleni
<span class="lineNum"> 3 </span> : *
<span class="lineNum"> 4 </span> : * This program is free software: you can redistribute it and/or modify
<span class="lineNum"> 5 </span> : * it under the terms of the GNU General Public License as published by
<span class="lineNum"> 6 </span> : * the Free Software Foundation, either version 3 of the License, or
<span class="lineNum"> 7 </span> : * (at your option) any later version.
<span class="lineNum"> 8 </span> : *
<span class="lineNum"> 9 </span> : * This program is distributed in the hope that it will be useful,
<span class="lineNum"> 10 </span> : * but WITHOUT ANY WARRANTY; without even the implied warranty of
<span class="lineNum"> 11 </span> : * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
<span class="lineNum"> 12 </span> : * GNU General Public License for more details.
<span class="lineNum"> 13 </span> : *
<span class="lineNum"> 14 </span> : * You should have received a copy of the GNU General Public License
<span class="lineNum"> 15 </span> : * along with this program. If not, see &lt;http://www.gnu.org/licenses/&gt;.
<span class="lineNum"> 16 </span> : */
<span class="lineNum"> 17 </span> :
<span class="lineNum"> 18 </span> : #include &quot;portable.h&quot;
<span class="lineNum"> 19 </span> :
<span class="lineNum"> 20 </span> : #include &quot;elem.h&quot;
<span class="lineNum"> 21 </span> : #include &quot;support.h&quot;
<span class="lineNum"> 22 </span> : #include &quot;handle.h&quot;
<span class="lineNum"> 23 </span> :
<span class="lineNum"> 24 </span> : /****************************************************************************/
<a name="25"><span class="lineNum"> 25 </span> : /* handle */</a>
<span class="lineNum"> 26 </span> :
<span class="lineNum"> 27 </span><span class="lineCov"> 773174 : int handle_create(struct snapraid_handle* handle, struct snapraid_file* file, int mode)</span>
<span class="lineNum"> 28 </span> : {
<span class="lineNum"> 29 </span> : int ret;
<span class="lineNum"> 30 </span> : int flags;
<span class="lineNum"> 31 </span> :
<span class="lineNum"> 32 </span> : /* if it's the same file, and already opened, nothing to do */
<span class="lineNum"> 33 </span><span class="lineCov"> 773174 : if (handle-&gt;file == file &amp;&amp; handle-&gt;f != -1) {</span>
<span class="lineNum"> 34 </span><span class="lineNoCov"> 0 : return 0;</span>
<span class="lineNum"> 35 </span> : }
<span class="lineNum"> 36 </span> :
<span class="lineNum"> 37 </span><span class="lineCov"> 773174 : pathprint(handle-&gt;path, sizeof(handle-&gt;path), &quot;%s%s&quot;, handle-&gt;disk-&gt;dir, file-&gt;sub);</span>
<span class="lineNum"> 38 </span> :
<span class="lineNum"> 39 </span><span class="lineCov"> 773174 : ret = mkancestor(handle-&gt;path);</span>
<span class="lineNum"> 40 </span><span class="lineCov"> 773174 : if (ret != 0) {</span>
<span class="lineNum"> 41 </span> : /* LCOV_EXCL_START */
<span class="lineNum"> 42 </span> : return -1;
<span class="lineNum"> 43 </span> : /* LCOV_EXCL_STOP */
<span class="lineNum"> 44 </span> : }
<span class="lineNum"> 45 </span> :
<span class="lineNum"> 46 </span> : /* initial values, changed later if required */
<span class="lineNum"> 47 </span><span class="lineCov"> 773174 : handle-&gt;created = 0;</span>
<span class="lineNum"> 48 </span> :
<span class="lineNum"> 49 </span> : /* flags for opening */
<span class="lineNum"> 50 </span> : /* O_BINARY: open as binary file (Windows only) */
<span class="lineNum"> 51 </span> : /* O_NOFOLLOW: do not follow links to ensure to open the real file */
<span class="lineNum"> 52 </span> : /* O_SEQUENTIAL: improve performance for sequential access (Windows only) */
<span class="lineNum"> 53 </span><span class="lineCov"> 773174 : flags = O_BINARY | O_NOFOLLOW;</span>
<span class="lineNum"> 54 </span><span class="lineCov"> 773174 : if ((mode &amp; MODE_SEQUENTIAL) != 0)</span>
<span class="lineNum"> 55 </span><span class="lineCov"> 773174 : flags |= O_SEQUENTIAL;</span>
<span class="lineNum"> 56 </span> :
<span class="lineNum"> 57 </span> : /* open for read write */
<span class="lineNum"> 58 </span><span class="lineCov"> 773174 : handle-&gt;f = open(handle-&gt;path, flags | O_RDWR);</span>
<span class="lineNum"> 59 </span> :
<span class="lineNum"> 60 </span> : /* if failed for missing write permission */
<span class="lineNum"> 61 </span><span class="lineCov"> 773174 : if (handle-&gt;f == -1 &amp;&amp; (errno == EACCES || errno == EROFS)) {</span>
<span class="lineNum"> 62 </span> : /* open for real-only */
<span class="lineNum"> 63 </span><span class="lineNoCov"> 0 : handle-&gt;f = open(handle-&gt;path, flags | O_RDONLY);</span>
<span class="lineNum"> 64 </span> : }
<span class="lineNum"> 65 </span> :
<span class="lineNum"> 66 </span> : /* if failed for missing file */
<span class="lineNum"> 67 </span><span class="lineCov"> 773174 : if (handle-&gt;f == -1 &amp;&amp; errno == ENOENT) {</span>
<span class="lineNum"> 68 </span> : char path_from[PATH_MAX];
<span class="lineNum"> 69 </span> :
<span class="lineNum"> 70 </span> : /* check if exists a .unrecoverable copy, and rename to the real one */
<span class="lineNum"> 71 </span><span class="lineCov"> 176361 : pathprint(path_from, sizeof(path_from), &quot;%s.unrecoverable&quot;, handle-&gt;path);</span>
<span class="lineNum"> 72 </span> :
<span class="lineNum"> 73 </span><span class="lineCov"> 176361 : if (rename(path_from, handle-&gt;path) == 0) {</span>
<span class="lineNum"> 74 </span> : /* open for read write */
<span class="lineNum"> 75 </span><span class="lineCov"> 63387 : handle-&gt;f = open(handle-&gt;path, flags | O_RDWR);</span>
<span class="lineNum"> 76 </span> : } else {
<span class="lineNum"> 77 </span> : /* create it */
<span class="lineNum"> 78 </span><span class="lineCov"> 112974 : handle-&gt;f = open(handle-&gt;path, flags | O_RDWR | O_CREAT, 0600);</span>
<span class="lineNum"> 79 </span><span class="lineCov"> 112974 : if (handle-&gt;f != -1) {</span>
<span class="lineNum"> 80 </span> : /* mark it as created if really done */
<span class="lineNum"> 81 </span><span class="lineCov"> 112974 : handle-&gt;created = 1;</span>
<span class="lineNum"> 82 </span> : }
<span class="lineNum"> 83 </span> : }
<span class="lineNum"> 84 </span> : }
<span class="lineNum"> 85 </span> :
<span class="lineNum"> 86 </span><span class="lineCov"> 773174 : if (handle-&gt;f == -1) {</span>
<span class="lineNum"> 87 </span> : /* LCOV_EXCL_START */
<span class="lineNum"> 88 </span> : /* invalidate for error */
<span class="lineNum"> 89 </span> : handle-&gt;file = 0;
<span class="lineNum"> 90 </span> : handle-&gt;f = -1;
<span class="lineNum"> 91 </span> : handle-&gt;valid_size = 0;
<span class="lineNum"> 92 </span> :
<span class="lineNum"> 93 </span> : log_fatal(&quot;Error opening file '%s'. %s.\n&quot;, handle-&gt;path, strerror(errno));
<span class="lineNum"> 94 </span> : return -1;
<span class="lineNum"> 95 </span> : /* LCOV_EXCL_STOP */
<span class="lineNum"> 96 </span> : }
<span class="lineNum"> 97 </span> :
<span class="lineNum"> 98 </span> : /* just opened */
<span class="lineNum"> 99 </span><span class="lineCov"> 773174 : handle-&gt;file = file;</span>
<span class="lineNum"> 100 </span> :
<span class="lineNum"> 101 </span> : /* get the stat info */
<span class="lineNum"> 102 </span><span class="lineCov"> 773174 : ret = fstat(handle-&gt;f, &amp;handle-&gt;st);</span>
<span class="lineNum"> 103 </span><span class="lineCov"> 773174 : if (ret != 0) {</span>
<span class="lineNum"> 104 </span> : /* LCOV_EXCL_START */
<span class="lineNum"> 105 </span> : log_fatal(&quot;Error accessing file '%s'. %s.\n&quot;, handle-&gt;path, strerror(errno));
<span class="lineNum"> 106 </span> : return -1;
<span class="lineNum"> 107 </span> : /* LCOV_EXCL_STOP */
<span class="lineNum"> 108 </span> : }
<span class="lineNum"> 109 </span> :
<span class="lineNum"> 110 </span> : /* get the size of the existing data */
<span class="lineNum"> 111 </span><span class="lineCov"> 773174 : handle-&gt;valid_size = handle-&gt;st.st_size;</span>
<span class="lineNum"> 112 </span> :
<span class="lineNum"> 113 </span> : #if HAVE_POSIX_FADVISE
<span class="lineNum"> 114 </span><span class="lineCov"> 773174 : if ((mode &amp; MODE_SEQUENTIAL) != 0) {</span>
<span class="lineNum"> 115 </span> : /* advise sequential access */
<span class="lineNum"> 116 </span><span class="lineCov"> 773174 : ret = posix_fadvise(handle-&gt;f, 0, 0, POSIX_FADV_SEQUENTIAL);</span>
<span class="lineNum"> 117 </span><span class="lineCov"> 773174 : if (ret != 0) {</span>
<span class="lineNum"> 118 </span> : /* LCOV_EXCL_START */
<span class="lineNum"> 119 </span> : log_fatal(&quot;Error advising file '%s'. %s.\n&quot;, handle-&gt;path, strerror(ret));
<span class="lineNum"> 120 </span> : return -1;
<span class="lineNum"> 121 </span> : /* LCOV_EXCL_STOP */
<span class="lineNum"> 122 </span> : }
<span class="lineNum"> 123 </span> : }
<span class="lineNum"> 124 </span> : #endif
<span class="lineNum"> 125 </span> :
<span class="lineNum"> 126 </span><span class="lineCov"> 773174 : return 0;</span>
<a name="127"><span class="lineNum"> 127 </span> : }</a>
<span class="lineNum"> 128 </span> :
<span class="lineNum"> 129 </span><span class="lineCov"> 3195 : int handle_truncate(struct snapraid_handle* handle, struct snapraid_file* file)</span>
<span class="lineNum"> 130 </span> : {
<span class="lineNum"> 131 </span> : int ret;
<span class="lineNum"> 132 </span> :
<span class="lineNum"> 133 </span><span class="lineCov"> 3195 : ret = ftruncate(handle-&gt;f, file-&gt;size);</span>
<span class="lineNum"> 134 </span><span class="lineCov"> 3195 : if (ret != 0) {</span>
<span class="lineNum"> 135 </span> : /* LCOV_EXCL_START */
<span class="lineNum"> 136 </span> : if (errno == EACCES) {
<span class="lineNum"> 137 </span> : log_fatal(&quot;Failed to truncate file '%s' for missing write permission.\n&quot;, handle-&gt;path);
<span class="lineNum"> 138 </span> : } else {
<span class="lineNum"> 139 </span> : log_fatal(&quot;Error truncating file '%s'. %s.\n&quot;, handle-&gt;path, strerror(errno));
<span class="lineNum"> 140 </span> : }
<span class="lineNum"> 141 </span> : return -1;
<span class="lineNum"> 142 </span> : /* LCOV_EXCL_STOP */
<span class="lineNum"> 143 </span> : }
<span class="lineNum"> 144 </span> :
<span class="lineNum"> 145 </span> : /* adjust the size to the truncated size */
<span class="lineNum"> 146 </span><span class="lineCov"> 3195 : handle-&gt;valid_size = file-&gt;size;</span>
<span class="lineNum"> 147 </span> :
<span class="lineNum"> 148 </span><span class="lineCov"> 3195 : return 0;</span>
<a name="149"><span class="lineNum"> 149 </span> : }</a>
<span class="lineNum"> 150 </span> :
<span class="lineNum"> 151 </span><span class="lineCov"> 2005010 : int handle_open(struct snapraid_handle* handle, struct snapraid_file* file, int mode, fptr* out, fptr* out_missing)</span>
<span class="lineNum"> 152 </span> : {
<span class="lineNum"> 153 </span> : int ret;
<span class="lineNum"> 154 </span> : int flags;
<span class="lineNum"> 155 </span> :
<span class="lineNum"> 156 </span><span class="lineCov"> 2005010 : if (!out_missing)</span>
<span class="lineNum"> 157 </span><span class="lineCov"> 2004503 : out_missing = out;</span>
<span class="lineNum"> 158 </span> :
<span class="lineNum"> 159 </span> : /* if already opened, nothing to do */
<span class="lineNum"> 160 </span><span class="lineCov"> 2005010 : if (handle-&gt;file == file &amp;&amp; handle-&gt;f != -1) {</span>
<span class="lineNum"> 161 </span><span class="lineCov"> 284379 : return 0;</span>
<span class="lineNum"> 162 </span> : }
<span class="lineNum"> 163 </span> :
<span class="lineNum"> 164 </span><span class="lineCov"> 1720631 : pathprint(handle-&gt;path, sizeof(handle-&gt;path), &quot;%s%s&quot;, handle-&gt;disk-&gt;dir, file-&gt;sub);</span>
<span class="lineNum"> 165 </span> :
<span class="lineNum"> 166 </span> : /* for sure not created */
<span class="lineNum"> 167 </span><span class="lineCov"> 1720631 : handle-&gt;created = 0;</span>
<span class="lineNum"> 168 </span> :
<span class="lineNum"> 169 </span> : /* flags for opening */
<span class="lineNum"> 170 </span> : /* O_BINARY: open as binary file (Windows only) */
<span class="lineNum"> 171 </span> : /* O_NOFOLLOW: do not follow links to ensure to open the real file */
<span class="lineNum"> 172 </span> : /* O_SEQUENTIAL: improve performance for sequential access (Windows only) */
<span class="lineNum"> 173 </span><span class="lineCov"> 1720631 : flags = O_BINARY | O_NOFOLLOW;</span>
<span class="lineNum"> 174 </span><span class="lineCov"> 1720631 : if ((mode &amp; MODE_SEQUENTIAL) != 0)</span>
<span class="lineNum"> 175 </span><span class="lineCov"> 1709301 : flags |= O_SEQUENTIAL;</span>
<span class="lineNum"> 176 </span> :
<span class="lineNum"> 177 </span> : /* open for read */
<span class="lineNum"> 178 </span><span class="lineCov"> 1720631 : handle-&gt;f = open_noatime(handle-&gt;path, flags | O_RDONLY);</span>
<span class="lineNum"> 179 </span><span class="lineCov"> 1720631 : if (handle-&gt;f == -1) {</span>
<span class="lineNum"> 180 </span> : /* invalidate for error */
<span class="lineNum"> 181 </span><span class="lineCov"> 189310 : handle-&gt;file = 0;</span>
<span class="lineNum"> 182 </span><span class="lineCov"> 189310 : handle-&gt;f = -1;</span>
<span class="lineNum"> 183 </span><span class="lineCov"> 189310 : handle-&gt;valid_size = 0;</span>
<span class="lineNum"> 184 </span> :
<span class="lineNum"> 185 </span><span class="lineCov"> 189310 : if (errno == ENOENT)</span>
<span class="lineNum"> 186 </span><span class="lineCov"> 189298 : out_missing(&quot;Missing file '%s'.\n&quot;, handle-&gt;path);</span>
<span class="lineNum"> 187 </span> : else
<span class="lineNum"> 188 </span><span class="lineCov"> 12 : out(&quot;Error opening file '%s'. %s.\n&quot;, handle-&gt;path, strerror(errno));</span>
<span class="lineNum"> 189 </span><span class="lineCov"> 189310 : return -1;</span>
<span class="lineNum"> 190 </span> : }
<span class="lineNum"> 191 </span> :
<span class="lineNum"> 192 </span> : /* just opened */
<span class="lineNum"> 193 </span><span class="lineCov"> 1531321 : handle-&gt;file = file;</span>
<span class="lineNum"> 194 </span> :
<span class="lineNum"> 195 </span> : /* get the stat info */
<span class="lineNum"> 196 </span><span class="lineCov"> 1531321 : ret = fstat(handle-&gt;f, &amp;handle-&gt;st);</span>
<span class="lineNum"> 197 </span><span class="lineCov"> 1531321 : if (ret != 0) {</span>
<span class="lineNum"> 198 </span> : /* LCOV_EXCL_START */
<span class="lineNum"> 199 </span> : out(&quot;Error accessing file '%s'. %s.\n&quot;, handle-&gt;path, strerror(errno));
<span class="lineNum"> 200 </span> : return -1;
<span class="lineNum"> 201 </span> : /* LCOV_EXCL_STOP */
<span class="lineNum"> 202 </span> : }
<span class="lineNum"> 203 </span> :
<span class="lineNum"> 204 </span> : /* get the size of the existing data */
<span class="lineNum"> 205 </span><span class="lineCov"> 1531321 : handle-&gt;valid_size = handle-&gt;st.st_size;</span>
<span class="lineNum"> 206 </span> :
<span class="lineNum"> 207 </span> : #if HAVE_POSIX_FADVISE
<span class="lineNum"> 208 </span><span class="lineCov"> 1531321 : if ((mode &amp; MODE_SEQUENTIAL) != 0) {</span>
<span class="lineNum"> 209 </span> : /* advise sequential access */
<span class="lineNum"> 210 </span><span class="lineCov"> 1519991 : ret = posix_fadvise(handle-&gt;f, 0, 0, POSIX_FADV_SEQUENTIAL);</span>
<span class="lineNum"> 211 </span><span class="lineCov"> 1519991 : if (ret != 0) {</span>
<span class="lineNum"> 212 </span> : /* LCOV_EXCL_START */
<span class="lineNum"> 213 </span> : out(&quot;Error advising file '%s'. %s.\n&quot;, handle-&gt;path, strerror(ret));
<span class="lineNum"> 214 </span> : return -1;
<span class="lineNum"> 215 </span> : /* LCOV_EXCL_STOP */
<span class="lineNum"> 216 </span> : }
<span class="lineNum"> 217 </span> : }
<span class="lineNum"> 218 </span> : #endif
<span class="lineNum"> 219 </span> :
<span class="lineNum"> 220 </span><span class="lineCov"> 1531321 : return 0;</span>
<a name="221"><span class="lineNum"> 221 </span> : }</a>
<span class="lineNum"> 222 </span> :
<span class="lineNum"> 223 </span><span class="lineCov"> 4545866 : int handle_close(struct snapraid_handle* handle)</span>
<span class="lineNum"> 224 </span> : {
<span class="lineNum"> 225 </span> : int ret;
<span class="lineNum"> 226 </span> :
<span class="lineNum"> 227 </span> : /* close if open */
<span class="lineNum"> 228 </span><span class="lineCov"> 4545866 : if (handle-&gt;f != -1) {</span>
<span class="lineNum"> 229 </span><span class="lineCov"> 2304495 : ret = close(handle-&gt;f);</span>
<span class="lineNum"> 230 </span><span class="lineCov"> 2304495 : if (ret != 0) {</span>
<span class="lineNum"> 231 </span> : /* LCOV_EXCL_START */
<span class="lineNum"> 232 </span> : log_fatal(&quot;Error closing file '%s'. %s.\n&quot;, handle-&gt;file-&gt;sub, strerror(errno));
<span class="lineNum"> 233 </span> :
<span class="lineNum"> 234 </span> : /* invalidate for error */
<span class="lineNum"> 235 </span> : handle-&gt;file = 0;
<span class="lineNum"> 236 </span> : handle-&gt;f = -1;
<span class="lineNum"> 237 </span> : handle-&gt;valid_size = 0;
<span class="lineNum"> 238 </span> : return -1;
<span class="lineNum"> 239 </span> : /* LCOV_EXCL_STOP */
<span class="lineNum"> 240 </span> : }
<span class="lineNum"> 241 </span> : }
<span class="lineNum"> 242 </span> :
<span class="lineNum"> 243 </span> : /* reset the descriptor */
<span class="lineNum"> 244 </span><span class="lineCov"> 4545866 : handle-&gt;file = 0;</span>
<span class="lineNum"> 245 </span><span class="lineCov"> 4545866 : handle-&gt;f = -1;</span>
<span class="lineNum"> 246 </span><span class="lineCov"> 4545866 : handle-&gt;valid_size = 0;</span>
<span class="lineNum"> 247 </span> :
<span class="lineNum"> 248 </span><span class="lineCov"> 4545866 : return 0;</span>
<a name="249"><span class="lineNum"> 249 </span> : }</a>
<span class="lineNum"> 250 </span> :
<span class="lineNum"> 251 </span><span class="lineCov"> 5583462 : int handle_read(struct snapraid_handle* handle, struct snapraid_block* block, unsigned char* block_buffer, unsigned block_size, fptr* out, fptr* out_missing)</span>
<span class="lineNum"> 252 </span> : {
<span class="lineNum"> 253 </span> : ssize_t read_ret;
<span class="lineNum"> 254 </span> : data_off_t offset;
<span class="lineNum"> 255 </span> : unsigned read_size;
<span class="lineNum"> 256 </span> : unsigned count;
<span class="lineNum"> 257 </span> :
<span class="lineNum"> 258 </span><span class="lineCov"> 5583462 : offset = block_file_pos(block) * (data_off_t)block_size;</span>
<span class="lineNum"> 259 </span> :
<span class="lineNum"> 260 </span><span class="lineCov"> 5583462 : if (!out_missing)</span>
<span class="lineNum"> 261 </span><span class="lineCov"> 5570037 : out_missing = out;</span>
<span class="lineNum"> 262 </span> :
<span class="lineNum"> 263 </span> : /* check if we are going to read only not initialized data */
<span class="lineNum"> 264 </span><span class="lineCov"> 5583462 : if (offset &gt;= handle-&gt;valid_size) {</span>
<span class="lineNum"> 265 </span> : /* if the file is missing, it's at 0 size, or it's rebuilt while reading */
<span class="lineNum"> 266 </span><span class="lineCov"> 432889 : if (offset == handle-&gt;valid_size || handle-&gt;valid_size == 0)</span>
<span class="lineNum"> 267 </span><span class="lineCov"> 431572 : out_missing(&quot;Reading data from missing file '%s' at offset %&quot; PRIu64 &quot;.\n&quot;, handle-&gt;path, offset);</span>
<span class="lineNum"> 268 </span> : else
<span class="lineNum"> 269 </span><span class="lineCov"> 1317 : out(&quot;Reading missing data from file '%s' at offset %&quot; PRIu64 &quot;.\n&quot;, handle-&gt;path, offset);</span>
<span class="lineNum"> 270 </span><span class="lineCov"> 432889 : return -1;</span>
<span class="lineNum"> 271 </span> : }
<span class="lineNum"> 272 </span> :
<span class="lineNum"> 273 </span><span class="lineCov"> 5150573 : read_size = block_file_size(block, block_size);</span>
<span class="lineNum"> 274 </span> :
<span class="lineNum"> 275 </span> : #if !HAVE_PREAD
<span class="lineNum"> 276 </span> : if (lseek(handle-&gt;f, offset, SEEK_SET) != offset) {
<span class="lineNum"> 277 </span> : /* LCOV_EXCL_START */
<span class="lineNum"> 278 </span> : out(&quot;Error seeking file '%s' at offset %&quot; PRIu64 &quot;. %s.\n&quot;, handle-&gt;path, offset, strerror(errno));
<span class="lineNum"> 279 </span> : return -1;
<span class="lineNum"> 280 </span> : /* LCOV_EXCL_STOP */
<span class="lineNum"> 281 </span> : }
<span class="lineNum"> 282 </span> : #endif
<span class="lineNum"> 283 </span> :
<span class="lineNum"> 284 </span><span class="lineCov"> 5150573 : count = 0;</span>
<span class="lineNum"> 285 </span> : do {
<span class="lineNum"> 286 </span> :
<span class="lineNum"> 287 </span> : #if HAVE_PREAD
<span class="lineNum"> 288 </span><span class="lineCov"> 5159817 : read_ret = pread(handle-&gt;f, block_buffer + count, read_size - count, offset + count);</span>
<span class="lineNum"> 289 </span> : #else
<span class="lineNum"> 290 </span> : read_ret = read(handle-&gt;f, block_buffer + count, read_size - count);
<span class="lineNum"> 291 </span> : #endif
<span class="lineNum"> 292 </span> :
<span class="lineNum"> 293 </span><span class="lineCov"> 5159817 : if (read_ret &lt; 0) {</span>
<span class="lineNum"> 294 </span> : /* LCOV_EXCL_START */
<span class="lineNum"> 295 </span> : out(&quot;Error reading file '%s' at offset %&quot; PRIu64 &quot; for size %u. %s.\n&quot;, handle-&gt;path, offset + count, read_size - count, strerror(errno));
<span class="lineNum"> 296 </span> : return -1;
<span class="lineNum"> 297 </span> : /* LCOV_EXCL_STOP */
<span class="lineNum"> 298 </span> : }
<span class="lineNum"> 299 </span><span class="lineCov"> 5159817 : if (read_ret == 0) {</span>
<span class="lineNum"> 300 </span><span class="lineCov"> 9244 : out(&quot;Unexpected end of file '%s' at offset %&quot; PRIu64 &quot;. %s.\n&quot;, handle-&gt;path, offset, strerror(errno));</span>
<span class="lineNum"> 301 </span><span class="lineCov"> 9244 : return -1;</span>
<span class="lineNum"> 302 </span> : }
<span class="lineNum"> 303 </span> :
<span class="lineNum"> 304 </span><span class="lineCov"> 5150573 : count += read_ret;</span>
<span class="lineNum"> 305 </span><span class="lineCov"> 5150573 : } while (count &lt; read_size);</span>
<span class="lineNum"> 306 </span> :
<span class="lineNum"> 307 </span> : /* pad with 0 */
<span class="lineNum"> 308 </span><span class="lineCov"> 5141329 : if (read_size &lt; block_size) {</span>
<span class="lineNum"> 309 </span><span class="lineCov"> 2081857 : memset(block_buffer + read_size, 0, block_size - read_size);</span>
<span class="lineNum"> 310 </span> : }
<span class="lineNum"> 311 </span> :
<span class="lineNum"> 312 </span> : /* Here isn't needed to call posix_fadvise(..., POSIX_FADV_DONTNEED) */
<span class="lineNum"> 313 </span> : /* because we already advised sequential access with POSIX_FADV_SEQUENTIAL. */
<span class="lineNum"> 314 </span> : /* In Linux 2.6.33 it's enough to ensure that data is not kept in the cache. */
<span class="lineNum"> 315 </span> : /* Better to do nothing and save a syscall for each block. */
<span class="lineNum"> 316 </span> :
<span class="lineNum"> 317 </span> : /* Here we cannot call posix_fadvise(..., POSIX_FADV_WILLNEED) for the next block */
<span class="lineNum"> 318 </span> : /* because it may be blocking */
<span class="lineNum"> 319 </span> : /* See Ted Ts'o comment in &quot;posix_fadvise(POSIX_FADV_WILLNEED) waits before returning?&quot; */
<span class="lineNum"> 320 </span> : /* at: https://lkml.org/lkml/2010/12/6/122 */
<span class="lineNum"> 321 </span> : /* We relay only on the automatic readahead triggered by POSIX_FADV_SEQUENTIAL. */
<span class="lineNum"> 322 </span> :
<span class="lineNum"> 323 </span><span class="lineCov"> 5141329 : return read_size;</span>
<a name="324"><span class="lineNum"> 324 </span> : }</a>
<span class="lineNum"> 325 </span> :
<span class="lineNum"> 326 </span><span class="lineCov"> 288068 : int handle_write(struct snapraid_handle* handle, struct snapraid_block* block, unsigned char* block_buffer, unsigned block_size)</span>
<span class="lineNum"> 327 </span> : {
<span class="lineNum"> 328 </span> : ssize_t write_ret;
<span class="lineNum"> 329 </span> : data_off_t offset;
<span class="lineNum"> 330 </span> : unsigned write_size;
<span class="lineNum"> 331 </span> :
<span class="lineNum"> 332 </span><span class="lineCov"> 288068 : offset = block_file_pos(block) * (data_off_t)block_size;</span>
<span class="lineNum"> 333 </span> :
<span class="lineNum"> 334 </span><span class="lineCov"> 288068 : write_size = block_file_size(block, block_size);</span>
<span class="lineNum"> 335 </span> :
<span class="lineNum"> 336 </span> : #if HAVE_PWRITE
<span class="lineNum"> 337 </span><span class="lineCov"> 288068 : write_ret = pwrite(handle-&gt;f, block_buffer, write_size, offset);</span>
<span class="lineNum"> 338 </span> : #else
<span class="lineNum"> 339 </span> : if (lseek(handle-&gt;f, offset, SEEK_SET) != offset) {
<span class="lineNum"> 340 </span> : /* LCOV_EXCL_START */
<span class="lineNum"> 341 </span> : log_fatal(&quot;Error seeking file '%s'. %s.\n&quot;, handle-&gt;path, strerror(errno));
<span class="lineNum"> 342 </span> : return -1;
<span class="lineNum"> 343 </span> : /* LCOV_EXCL_STOP */
<span class="lineNum"> 344 </span> : }
<span class="lineNum"> 345 </span> :
<span class="lineNum"> 346 </span> : write_ret = write(handle-&gt;f, block_buffer, write_size);
<span class="lineNum"> 347 </span> : #endif
<span class="lineNum"> 348 </span><span class="lineCov"> 288068 : if (write_ret != (ssize_t)write_size) { /* conversion is safe because block_size is always small */</span>
<span class="lineNum"> 349 </span> : /* LCOV_EXCL_START */
<span class="lineNum"> 350 </span> : log_fatal(&quot;Error writing file '%s'. %s.\n&quot;, handle-&gt;path, strerror(errno));
<span class="lineNum"> 351 </span> : return -1;
<span class="lineNum"> 352 </span> : /* LCOV_EXCL_STOP */
<span class="lineNum"> 353 </span> : }
<span class="lineNum"> 354 </span> :
<span class="lineNum"> 355 </span> : /* adjust the size of the valid data */
<span class="lineNum"> 356 </span><span class="lineCov"> 288068 : if (handle-&gt;valid_size &lt; offset + write_size) {</span>
<span class="lineNum"> 357 </span><span class="lineCov"> 282038 : handle-&gt;valid_size = offset + write_size;</span>
<span class="lineNum"> 358 </span> : }
<span class="lineNum"> 359 </span> :
<span class="lineNum"> 360 </span> : /* Here doesn't make sense to call posix_fadvise(..., POSIX_FADV_DONTNEED) because */
<span class="lineNum"> 361 </span> : /* at this time the data is still not yet written and it cannot be discharged. */
<span class="lineNum"> 362 </span> :
<span class="lineNum"> 363 </span><span class="lineCov"> 288068 : return 0;</span>
<a name="364"><span class="lineNum"> 364 </span> : }</a>
<span class="lineNum"> 365 </span> :
<span class="lineNum"> 366 </span><span class="lineCov"> 119610 : int handle_utime(struct snapraid_handle* handle)</span>
<span class="lineNum"> 367 </span> : {
<span class="lineNum"> 368 </span> : int ret;
<span class="lineNum"> 369 </span> :
<span class="lineNum"> 370 </span> : /* do nothing if not opened */
<span class="lineNum"> 371 </span><span class="lineCov"> 119610 : if (handle-&gt;f == -1)</span>
<span class="lineNum"> 372 </span><span class="lineCov"> 7 : return 0;</span>
<span class="lineNum"> 373 </span> :
<span class="lineNum"> 374 </span><span class="lineCov"> 119603 : ret = fmtime(handle-&gt;f, handle-&gt;file-&gt;mtime_sec, handle-&gt;file-&gt;mtime_nsec);</span>
<span class="lineNum"> 375 </span> :
<span class="lineNum"> 376 </span><span class="lineCov"> 119603 : if (ret != 0) {</span>
<span class="lineNum"> 377 </span> : /* LCOV_EXCL_START */
<span class="lineNum"> 378 </span> : log_fatal(&quot;Error timing file '%s'. %s.\n&quot;, handle-&gt;file-&gt;sub, strerror(errno));
<span class="lineNum"> 379 </span> : return -1;
<span class="lineNum"> 380 </span> : /* LCOV_EXCL_STOP */
<span class="lineNum"> 381 </span> : }
<span class="lineNum"> 382 </span> :
<span class="lineNum"> 383 </span><span class="lineCov"> 119603 : return 0;</span>
<a name="384"><span class="lineNum"> 384 </span> : }</a>
<span class="lineNum"> 385 </span> :
<span class="lineNum"> 386 </span><span class="lineCov"> 197 : struct snapraid_handle* handle_map(struct snapraid_state* state, unsigned* handlemax)</span>
<span class="lineNum"> 387 </span> : {
<span class="lineNum"> 388 </span> : tommy_node* i;
<span class="lineNum"> 389 </span> : unsigned j;
<span class="lineNum"> 390 </span><span class="lineCov"> 197 : unsigned size = 0;</span>
<span class="lineNum"> 391 </span> : struct snapraid_handle* handle;
<span class="lineNum"> 392 </span> :
<span class="lineNum"> 393 </span> : /* get the size of the mapping */
<span class="lineNum"> 394 </span><span class="lineCov"> 197 : size = 0;</span>
<span class="lineNum"> 395 </span><span class="lineCov"> 1374 : for (i = state-&gt;maplist; i != 0; i = i-&gt;next) {</span>
<span class="lineNum"> 396 </span><span class="lineCov"> 1177 : struct snapraid_map* map = i-&gt;data;</span>
<span class="lineNum"> 397 </span><span class="lineCov"> 1177 : if (map-&gt;position &gt; size)</span>
<span class="lineNum"> 398 </span><span class="lineCov"> 850 : size = map-&gt;position;</span>
<span class="lineNum"> 399 </span> : }
<span class="lineNum"> 400 </span><span class="lineCov"> 197 : ++size; /* size is one more than the max */</span>
<span class="lineNum"> 401 </span> :
<span class="lineNum"> 402 </span><span class="lineCov"> 197 : handle = malloc_nofail(size * sizeof(struct snapraid_handle));</span>
<span class="lineNum"> 403 </span> :
<span class="lineNum"> 404 </span><span class="lineCov"> 1379 : for (j = 0; j &lt; size; ++j) {</span>
<span class="lineNum"> 405 </span> : /* default for empty position */
<span class="lineNum"> 406 </span><span class="lineCov"> 1182 : handle[j].disk = 0;</span>
<span class="lineNum"> 407 </span><span class="lineCov"> 1182 : handle[j].file = 0;</span>
<span class="lineNum"> 408 </span><span class="lineCov"> 1182 : handle[j].f = -1;</span>
<span class="lineNum"> 409 </span><span class="lineCov"> 1182 : handle[j].valid_size = 0;</span>
<span class="lineNum"> 410 </span> : }
<span class="lineNum"> 411 </span> :
<span class="lineNum"> 412 </span> : /* set the vector */
<span class="lineNum"> 413 </span><span class="lineCov"> 1374 : for (i = state-&gt;disklist; i != 0; i = i-&gt;next) {</span>
<span class="lineNum"> 414 </span> : struct snapraid_map* map;
<span class="lineNum"> 415 </span><span class="lineCov"> 1177 : struct snapraid_disk* disk = i-&gt;data;</span>
<span class="lineNum"> 416 </span> : tommy_node* k;
<span class="lineNum"> 417 </span> :
<span class="lineNum"> 418 </span> : /* search the mapping for this disk */
<span class="lineNum"> 419 </span><span class="lineCov"> 4107 : for (k = state-&gt;maplist; k != 0; k = k-&gt;next) {</span>
<span class="lineNum"> 420 </span><span class="lineCov"> 4107 : map = k-&gt;data;</span>
<span class="lineNum"> 421 </span><span class="lineCov"> 4107 : if (strcmp(disk-&gt;name, map-&gt;name) == 0)</span>
<span class="lineNum"> 422 </span><span class="lineCov"> 1177 : break;</span>
<span class="lineNum"> 423 </span> : }
<span class="lineNum"> 424 </span><span class="lineCov"> 1177 : if (k == 0) {</span>
<span class="lineNum"> 425 </span> : /* LCOV_EXCL_START */
<span class="lineNum"> 426 </span> : log_fatal(&quot;Internal error for inconsistent disk mapping.\n&quot;);
<span class="lineNum"> 427 </span> : exit(EXIT_FAILURE);
<span class="lineNum"> 428 </span> : /* LCOV_EXCL_STOP */
<span class="lineNum"> 429 </span> : }
<span class="lineNum"> 430 </span> :
<span class="lineNum"> 431 </span><span class="lineCov"> 1177 : handle[map-&gt;position].disk = disk;</span>
<span class="lineNum"> 432 </span> : }
<span class="lineNum"> 433 </span> :
<span class="lineNum"> 434 </span><span class="lineCov"> 197 : *handlemax = size;</span>
<span class="lineNum"> 435 </span><span class="lineCov"> 197 : return handle;</span>
<span class="lineNum"> 436 </span> : }
<span class="lineNum"> 437 </span> :
</pre>
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