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<li class="navelem"><a class="el" href="dir_accbe68f7f6ae56277732013f9f6e30d.html">fuse-3.8.0</a></li><li class="navelem"><a class="el" href="dir_8fed388a5f2bf0c904e350dd5e29317e.html">lib</a></li> </ul>
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<div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">/*</span></div><div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment"> FUSE: Filesystem in Userspace</span></div><div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment"> Copyright (C) 2010 Miklos Szeredi <miklos@szeredi.hu></span></div><div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment"></span></div><div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment"> Functions for dealing with `struct fuse_buf` and `struct</span></div><div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment"> fuse_bufvec`.</span></div><div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment"></span></div><div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment"> This program can be distributed under the terms of the GNU LGPLv2.</span></div><div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment"> See the file COPYING.LIB</span></div><div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="comment">*/</span></div><div class="line"><a name="l00011"></a><span class="lineno"> 11</span> </div><div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="preprocessor">#define _GNU_SOURCE</span></div><div class="line"><a name="l00013"></a><span class="lineno"> 13</span> </div><div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="preprocessor">#include "config.h"</span></div><div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="preprocessor">#include "fuse_i.h"</span></div><div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="preprocessor">#include "fuse_lowlevel.h"</span></div><div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="preprocessor">#include <string.h></span></div><div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="preprocessor">#include <unistd.h></span></div><div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="preprocessor">#include <errno.h></span></div><div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="preprocessor">#include <assert.h></span></div><div class="line"><a name="l00021"></a><span class="lineno"> 21</span> </div><div class="line"><a name="l00022"></a><span class="lineno"><a class="line" href="include_2fuse__common_8h.html#a4327f41b2fe1ca84151b407169bd86c0"> 22</a></span> <span class="keywordtype">size_t</span> <a class="code" href="fuse-3_88_80_2include_2fuse__common_8h.html#a4327f41b2fe1ca84151b407169bd86c0">fuse_buf_size</a>(<span class="keyword">const</span> <span class="keyword">struct</span> <a class="code" href="structfuse__bufvec.html">fuse_bufvec</a> *bufv)</div><div class="line"><a name="l00023"></a><span class="lineno"> 23</span> {</div><div class="line"><a name="l00024"></a><span class="lineno"> 24</span>  <span class="keywordtype">size_t</span> i;</div><div class="line"><a name="l00025"></a><span class="lineno"> 25</span>  <span class="keywordtype">size_t</span> size = 0;</div><div class="line"><a name="l00026"></a><span class="lineno"> 26</span> </div><div class="line"><a name="l00027"></a><span class="lineno"> 27</span>  <span class="keywordflow">for</span> (i = 0; i < bufv-><a class="code" href="structfuse__bufvec.html#ac303661a9c39ade1feeb05d8238b4ed6">count</a>; i++) {</div><div class="line"><a name="l00028"></a><span class="lineno"> 28</span>  <span class="keywordflow">if</span> (bufv-><a class="code" href="structfuse__bufvec.html#a4182555be43b16c0778d0dd9eb2bf7c4">buf</a>[i].<a class="code" href="structfuse__buf.html#afb58c1e18f434d1d4edb784d00e2e13d">size</a> == SIZE_MAX)</div><div class="line"><a name="l00029"></a><span class="lineno"> 29</span>  size = SIZE_MAX;</div><div class="line"><a name="l00030"></a><span class="lineno"> 30</span>  <span class="keywordflow">else</span></div><div class="line"><a name="l00031"></a><span class="lineno"> 31</span>  size += bufv-><a class="code" href="structfuse__bufvec.html#a4182555be43b16c0778d0dd9eb2bf7c4">buf</a>[i].<a class="code" href="structfuse__buf.html#afb58c1e18f434d1d4edb784d00e2e13d">size</a>;</div><div class="line"><a name="l00032"></a><span class="lineno"> 32</span>  }</div><div class="line"><a name="l00033"></a><span class="lineno"> 33</span> </div><div class="line"><a name="l00034"></a><span class="lineno"> 34</span>  <span class="keywordflow">return</span> size;</div><div class="line"><a name="l00035"></a><span class="lineno"> 35</span> }</div><div class="line"><a name="l00036"></a><span class="lineno"> 36</span> </div><div class="line"><a name="l00037"></a><span class="lineno"> 37</span> <span class="keyword">static</span> <span class="keywordtype">size_t</span> min_size(<span class="keywordtype">size_t</span> s1, <span class="keywordtype">size_t</span> s2)</div><div class="line"><a name="l00038"></a><span class="lineno"> 38</span> {</div><div class="line"><a name="l00039"></a><span class="lineno"> 39</span>  <span class="keywordflow">return</span> s1 < s2 ? s1 : s2;</div><div class="line"><a name="l00040"></a><span class="lineno"> 40</span> }</div><div class="line"><a name="l00041"></a><span class="lineno"> 41</span> </div><div class="line"><a name="l00042"></a><span class="lineno"> 42</span> <span class="keyword">static</span> ssize_t fuse_buf_write(<span class="keyword">const</span> <span class="keyword">struct</span> <a class="code" href="structfuse__buf.html">fuse_buf</a> *dst, <span class="keywordtype">size_t</span> dst_off,</div><div class="line"><a name="l00043"></a><span class="lineno"> 43</span>  <span class="keyword">const</span> <span class="keyword">struct</span> <a class="code" href="structfuse__buf.html">fuse_buf</a> *src, <span class="keywordtype">size_t</span> src_off,</div><div class="line"><a name="l00044"></a><span class="lineno"> 44</span>  <span class="keywordtype">size_t</span> len)</div><div class="line"><a name="l00045"></a><span class="lineno"> 45</span> {</div><div class="line"><a name="l00046"></a><span class="lineno"> 46</span>  ssize_t res = 0;</div><div class="line"><a name="l00047"></a><span class="lineno"> 47</span>  <span class="keywordtype">size_t</span> copied = 0;</div><div class="line"><a name="l00048"></a><span class="lineno"> 48</span> </div><div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  <span class="keywordflow">while</span> (len) {</div><div class="line"><a name="l00050"></a><span class="lineno"> 50</span>  <span class="keywordflow">if</span> (dst-><a class="code" href="structfuse__buf.html#a1928e204554f2d37cb8dac28a8a2f28c">flags</a> & <a class="code" href="fuse-3_88_80_2include_2fuse__common_8h.html#a5e36b839c4dbf0439bd85b61c7213a58ad67d5c6075febad0594f06d46d02bfa9">FUSE_BUF_FD_SEEK</a>) {</div><div class="line"><a name="l00051"></a><span class="lineno"> 51</span>  res = pwrite(dst-><a class="code" href="structfuse__buf.html#a62b2ae82904ac4355142984b9dd90d68">fd</a>, (<span class="keywordtype">char</span> *)src-><a class="code" href="structfuse__buf.html#ac431db720526e68fd6c83eb0951ea1de">mem</a> + src_off, len,</div><div class="line"><a name="l00052"></a><span class="lineno"> 52</span>  dst-><a class="code" href="structfuse__buf.html#a8de23b7869b06b9a9caef6beb7c9e88e">pos</a> + dst_off);</div><div class="line"><a name="l00053"></a><span class="lineno"> 53</span>  } <span class="keywordflow">else</span> {</div><div class="line"><a name="l00054"></a><span class="lineno"> 54</span>  res = write(dst-><a class="code" href="structfuse__buf.html#a62b2ae82904ac4355142984b9dd90d68">fd</a>, (<span class="keywordtype">char</span> *)src-><a class="code" href="structfuse__buf.html#ac431db720526e68fd6c83eb0951ea1de">mem</a> + src_off, len);</div><div class="line"><a name="l00055"></a><span class="lineno"> 55</span>  }</div><div class="line"><a name="l00056"></a><span class="lineno"> 56</span>  <span class="keywordflow">if</span> (res == -1) {</div><div class="line"><a name="l00057"></a><span class="lineno"> 57</span>  <span class="keywordflow">if</span> (!copied)</div><div class="line"><a name="l00058"></a><span class="lineno"> 58</span>  <span class="keywordflow">return</span> -errno;</div><div class="line"><a name="l00059"></a><span class="lineno"> 59</span>  <span class="keywordflow">break</span>;</div><div class="line"><a name="l00060"></a><span class="lineno"> 60</span>  }</div><div class="line"><a name="l00061"></a><span class="lineno"> 61</span>  <span class="keywordflow">if</span> (res == 0)</div><div class="line"><a name="l00062"></a><span class="lineno"> 62</span>  <span class="keywordflow">break</span>;</div><div class="line"><a name="l00063"></a><span class="lineno"> 63</span> </div><div class="line"><a name="l00064"></a><span class="lineno"> 64</span>  copied += res;</div><div class="line"><a name="l00065"></a><span class="lineno"> 65</span>  <span class="keywordflow">if</span> (!(dst-><a class="code" href="structfuse__buf.html#a1928e204554f2d37cb8dac28a8a2f28c">flags</a> & <a class="code" href="fuse-3_88_80_2include_2fuse__common_8h.html#a5e36b839c4dbf0439bd85b61c7213a58af89b4b00a2d4a06d8458b320c2cb28cf">FUSE_BUF_FD_RETRY</a>))</div><div class="line"><a name="l00066"></a><span class="lineno"> 66</span>  <span class="keywordflow">break</span>;</div><div class="line"><a name="l00067"></a><span class="lineno"> 67</span> </div><div class="line"><a name="l00068"></a><span class="lineno"> 68</span>  src_off += res;</div><div class="line"><a name="l00069"></a><span class="lineno"> 69</span>  dst_off += res;</div><div class="line"><a name="l00070"></a><span class="lineno"> 70</span>  len -= res;</div><div class="line"><a name="l00071"></a><span class="lineno"> 71</span>  }</div><div class="line"><a name="l00072"></a><span class="lineno"> 72</span> </div><div class="line"><a name="l00073"></a><span class="lineno"> 73</span>  <span class="keywordflow">return</span> copied;</div><div class="line"><a name="l00074"></a><span class="lineno"> 74</span> }</div><div class="line"><a name="l00075"></a><span class="lineno"> 75</span> </div><div class="line"><a name="l00076"></a><span class="lineno"> 76</span> <span class="keyword">static</span> ssize_t fuse_buf_read(<span class="keyword">const</span> <span class="keyword">struct</span> <a class="code" href="structfuse__buf.html">fuse_buf</a> *dst, <span class="keywordtype">size_t</span> dst_off,</div><div class="line"><a name="l00077"></a><span class="lineno"> 77</span>  <span class="keyword">const</span> <span class="keyword">struct</span> <a class="code" href="structfuse__buf.html">fuse_buf</a> *src, <span class="keywordtype">size_t</span> src_off,</div><div class="line"><a name="l00078"></a><span class="lineno"> 78</span>  <span class="keywordtype">size_t</span> len)</div><div class="line"><a name="l00079"></a><span class="lineno"> 79</span> {</div><div class="line"><a name="l00080"></a><span class="lineno"> 80</span>  ssize_t res = 0;</div><div class="line"><a name="l00081"></a><span class="lineno"> 81</span>  <span class="keywordtype">size_t</span> copied = 0;</div><div class="line"><a name="l00082"></a><span class="lineno"> 82</span> </div><div class="line"><a name="l00083"></a><span class="lineno"> 83</span>  <span class="keywordflow">while</span> (len) {</div><div class="line"><a name="l00084"></a><span class="lineno"> 84</span>  <span class="keywordflow">if</span> (src-><a class="code" href="structfuse__buf.html#a1928e204554f2d37cb8dac28a8a2f28c">flags</a> & <a class="code" href="fuse-3_88_80_2include_2fuse__common_8h.html#a5e36b839c4dbf0439bd85b61c7213a58ad67d5c6075febad0594f06d46d02bfa9">FUSE_BUF_FD_SEEK</a>) {</div><div class="line"><a name="l00085"></a><span class="lineno"> 85</span>  res = pread(src-><a class="code" href="structfuse__buf.html#a62b2ae82904ac4355142984b9dd90d68">fd</a>, (<span class="keywordtype">char</span> *)dst-><a class="code" href="structfuse__buf.html#ac431db720526e68fd6c83eb0951ea1de">mem</a> + dst_off, len,</div><div class="line"><a name="l00086"></a><span class="lineno"> 86</span>  src-><a class="code" href="structfuse__buf.html#a8de23b7869b06b9a9caef6beb7c9e88e">pos</a> + src_off);</div><div class="line"><a name="l00087"></a><span class="lineno"> 87</span>  } <span class="keywordflow">else</span> {</div><div class="line"><a name="l00088"></a><span class="lineno"> 88</span>  res = read(src-><a class="code" href="structfuse__buf.html#a62b2ae82904ac4355142984b9dd90d68">fd</a>, (<span class="keywordtype">char</span> *)dst-><a class="code" href="structfuse__buf.html#ac431db720526e68fd6c83eb0951ea1de">mem</a> + dst_off, len);</div><div class="line"><a name="l00089"></a><span class="lineno"> 89</span>  }</div><div class="line"><a name="l00090"></a><span class="lineno"> 90</span>  <span class="keywordflow">if</span> (res == -1) {</div><div class="line"><a name="l00091"></a><span class="lineno"> 91</span>  <span class="keywordflow">if</span> (!copied)</div><div class="line"><a name="l00092"></a><span class="lineno"> 92</span>  <span class="keywordflow">return</span> -errno;</div><div class="line"><a name="l00093"></a><span class="lineno"> 93</span>  <span class="keywordflow">break</span>;</div><div class="line"><a name="l00094"></a><span class="lineno"> 94</span>  }</div><div class="line"><a name="l00095"></a><span class="lineno"> 95</span>  <span class="keywordflow">if</span> (res == 0)</div><div class="line"><a name="l00096"></a><span class="lineno"> 96</span>  <span class="keywordflow">break</span>;</div><div class="line"><a name="l00097"></a><span class="lineno"> 97</span> </div><div class="line"><a name="l00098"></a><span class="lineno"> 98</span>  copied += res;</div><div class="line"><a name="l00099"></a><span class="lineno"> 99</span>  <span class="keywordflow">if</span> (!(src-><a class="code" href="structfuse__buf.html#a1928e204554f2d37cb8dac28a8a2f28c">flags</a> & <a class="code" href="fuse-3_88_80_2include_2fuse__common_8h.html#a5e36b839c4dbf0439bd85b61c7213a58af89b4b00a2d4a06d8458b320c2cb28cf">FUSE_BUF_FD_RETRY</a>))</div><div class="line"><a name="l00100"></a><span class="lineno"> 100</span>  <span class="keywordflow">break</span>;</div><div class="line"><a name="l00101"></a><span class="lineno"> 101</span> </div><div class="line"><a name="l00102"></a><span class="lineno"> 102</span>  dst_off += res;</div><div class="line"><a name="l00103"></a><span class="lineno"> 103</span>  src_off += res;</div><div class="line"><a name="l00104"></a><span class="lineno"> 104</span>  len -= res;</div><div class="line"><a name="l00105"></a><span class="lineno"> 105</span>  }</div><div class="line"><a name="l00106"></a><span class="lineno"> 106</span> </div><div class="line"><a name="l00107"></a><span class="lineno"> 107</span>  <span class="keywordflow">return</span> copied;</div><div class="line"><a name="l00108"></a><span class="lineno"> 108</span> }</div><div class="line"><a name="l00109"></a><span class="lineno"> 109</span> </div><div class="line"><a name="l00110"></a><span class="lineno"> 110</span> <span class="keyword">static</span> ssize_t fuse_buf_fd_to_fd(<span class="keyword">const</span> <span class="keyword">struct</span> <a class="code" href="structfuse__buf.html">fuse_buf</a> *dst, <span class="keywordtype">size_t</span> dst_off,</div><div class="line"><a name="l00111"></a><span class="lineno"> 111</span>  <span class="keyword">const</span> <span class="keyword">struct</span> <a class="code" href="structfuse__buf.html">fuse_buf</a> *src, <span class="keywordtype">size_t</span> src_off,</div><div class="line"><a name="l00112"></a><span class="lineno"> 112</span>  <span class="keywordtype">size_t</span> len)</div><div class="line"><a name="l00113"></a><span class="lineno"> 113</span> {</div><div class="line"><a name="l00114"></a><span class="lineno"> 114</span>  <span class="keywordtype">char</span> buf[4096];</div><div class="line"><a name="l00115"></a><span class="lineno"> 115</span>  <span class="keyword">struct </span><a class="code" href="structfuse__buf.html">fuse_buf</a> tmp = {</div><div class="line"><a name="l00116"></a><span class="lineno"> 116</span>  .<a class="code" href="structfuse__buf.html#afb58c1e18f434d1d4edb784d00e2e13d">size</a> = <span class="keyword">sizeof</span>(buf),</div><div class="line"><a name="l00117"></a><span class="lineno"> 117</span>  .<a class="code" href="structfuse__buf.html#a1928e204554f2d37cb8dac28a8a2f28c">flags</a> = 0,</div><div class="line"><a name="l00118"></a><span class="lineno"> 118</span>  };</div><div class="line"><a name="l00119"></a><span class="lineno"> 119</span>  ssize_t res;</div><div class="line"><a name="l00120"></a><span class="lineno"> 120</span>  <span class="keywordtype">size_t</span> copied = 0;</div><div class="line"><a name="l00121"></a><span class="lineno"> 121</span> </div><div class="line"><a name="l00122"></a><span class="lineno"> 122</span>  tmp.<a class="code" href="structfuse__buf.html#ac431db720526e68fd6c83eb0951ea1de">mem</a> = buf;</div><div class="line"><a name="l00123"></a><span class="lineno"> 123</span> </div><div class="line"><a name="l00124"></a><span class="lineno"> 124</span>  <span class="keywordflow">while</span> (len) {</div><div class="line"><a name="l00125"></a><span class="lineno"> 125</span>  <span class="keywordtype">size_t</span> this_len = min_size(tmp.<a class="code" href="structfuse__buf.html#afb58c1e18f434d1d4edb784d00e2e13d">size</a>, len);</div><div class="line"><a name="l00126"></a><span class="lineno"> 126</span>  <span class="keywordtype">size_t</span> read_len;</div><div class="line"><a name="l00127"></a><span class="lineno"> 127</span> </div><div class="line"><a name="l00128"></a><span class="lineno"> 128</span>  res = fuse_buf_read(&tmp, 0, src, src_off, this_len);</div><div class="line"><a name="l00129"></a><span class="lineno"> 129</span>  <span class="keywordflow">if</span> (res < 0) {</div><div class="line"><a name="l00130"></a><span class="lineno"> 130</span>  <span class="keywordflow">if</span> (!copied)</div><div class="line"><a name="l00131"></a><span class="lineno"> 131</span>  <span class="keywordflow">return</span> res;</div><div class="line"><a name="l00132"></a><span class="lineno"> 132</span>  <span class="keywordflow">break</span>;</div><div class="line"><a name="l00133"></a><span class="lineno"> 133</span>  }</div><div class="line"><a name="l00134"></a><span class="lineno"> 134</span>  <span class="keywordflow">if</span> (res == 0)</div><div class="line"><a name="l00135"></a><span class="lineno"> 135</span>  <span class="keywordflow">break</span>;</div><div class="line"><a name="l00136"></a><span class="lineno"> 136</span> </div><div class="line"><a name="l00137"></a><span class="lineno"> 137</span>  read_len = res;</div><div class="line"><a name="l00138"></a><span class="lineno"> 138</span>  res = fuse_buf_write(dst, dst_off, &tmp, 0, read_len);</div><div class="line"><a name="l00139"></a><span class="lineno"> 139</span>  <span class="keywordflow">if</span> (res < 0) {</div><div class="line"><a name="l00140"></a><span class="lineno"> 140</span>  <span class="keywordflow">if</span> (!copied)</div><div class="line"><a name="l00141"></a><span class="lineno"> 141</span>  <span class="keywordflow">return</span> res;</div><div class="line"><a name="l00142"></a><span class="lineno"> 142</span>  <span class="keywordflow">break</span>;</div><div class="line"><a name="l00143"></a><span class="lineno"> 143</span>  }</div><div class="line"><a name="l00144"></a><span class="lineno"> 144</span>  <span class="keywordflow">if</span> (res == 0)</div><div class="line"><a name="l00145"></a><span class="lineno"> 145</span>  <span class="keywordflow">break</span>;</div><div class="line"><a name="l00146"></a><span class="lineno"> 146</span> </div><div class="line"><a name="l00147"></a><span class="lineno"> 147</span>  copied += res;</div><div class="line"><a name="l00148"></a><span class="lineno"> 148</span> </div><div class="line"><a name="l00149"></a><span class="lineno"> 149</span>  <span class="keywordflow">if</span> (res < this_len)</div><div class="line"><a name="l00150"></a><span class="lineno"> 150</span>  <span class="keywordflow">break</span>;</div><div class="line"><a name="l00151"></a><span class="lineno"> 151</span> </div><div class="line"><a name="l00152"></a><span class="lineno"> 152</span>  dst_off += res;</div><div class="line"><a name="l00153"></a><span class="lineno"> 153</span>  src_off += res;</div><div class="line"><a name="l00154"></a><span class="lineno"> 154</span>  len -= res;</div><div class="line"><a name="l00155"></a><span class="lineno"> 155</span>  }</div><div class="line"><a name="l00156"></a><span class="lineno"> 156</span> </div><div class="line"><a name="l00157"></a><span class="lineno"> 157</span>  <span class="keywordflow">return</span> copied;</div><div class="line"><a name="l00158"></a><span class="lineno"> 158</span> }</div><div class="line"><a name="l00159"></a><span class="lineno"> 159</span> </div><div class="line"><a name="l00160"></a><span class="lineno"> 160</span> <span class="preprocessor">#ifdef HAVE_SPLICE</span></div><div class="line"><a name="l00161"></a><span class="lineno"> 161</span> <span class="keyword">static</span> ssize_t fuse_buf_splice(<span class="keyword">const</span> <span class="keyword">struct</span> <a class="code" href="structfuse__buf.html">fuse_buf</a> *dst, <span class="keywordtype">size_t</span> dst_off,</div><div class="line"><a name="l00162"></a><span class="lineno"> 162</span>  <span class="keyword">const</span> <span class="keyword">struct</span> <a class="code" href="structfuse__buf.html">fuse_buf</a> *src, <span class="keywordtype">size_t</span> src_off,</div><div class="line"><a name="l00163"></a><span class="lineno"> 163</span>  <span class="keywordtype">size_t</span> len, <span class="keyword">enum</span> <a class="code" href="fuse-3_88_80_2include_2fuse__common_8h.html#aec0ad71a3e8c357ebe7e87cdecbdbe18">fuse_buf_copy_flags</a> <a class="code" href="structfuse__buf.html#a1928e204554f2d37cb8dac28a8a2f28c">flags</a>)</div><div class="line"><a name="l00164"></a><span class="lineno"> 164</span> {</div><div class="line"><a name="l00165"></a><span class="lineno"> 165</span>  <span class="keywordtype">int</span> splice_flags = 0;</div><div class="line"><a name="l00166"></a><span class="lineno"> 166</span>  off_t *srcpos = NULL;</div><div class="line"><a name="l00167"></a><span class="lineno"> 167</span>  off_t *dstpos = NULL;</div><div class="line"><a name="l00168"></a><span class="lineno"> 168</span>  off_t srcpos_val;</div><div class="line"><a name="l00169"></a><span class="lineno"> 169</span>  off_t dstpos_val;</div><div class="line"><a name="l00170"></a><span class="lineno"> 170</span>  ssize_t res;</div><div class="line"><a name="l00171"></a><span class="lineno"> 171</span>  <span class="keywordtype">size_t</span> copied = 0;</div><div class="line"><a name="l00172"></a><span class="lineno"> 172</span> </div><div class="line"><a name="l00173"></a><span class="lineno"> 173</span>  <span class="keywordflow">if</span> (flags & <a class="code" href="fuse-3_88_80_2include_2fuse__common_8h.html#aec0ad71a3e8c357ebe7e87cdecbdbe18af239e556066a5d73b3ff542216b157b9">FUSE_BUF_SPLICE_MOVE</a>)</div><div class="line"><a name="l00174"></a><span class="lineno"> 174</span>  splice_flags |= SPLICE_F_MOVE;</div><div class="line"><a name="l00175"></a><span class="lineno"> 175</span>  <span class="keywordflow">if</span> (flags & <a class="code" href="fuse-3_88_80_2include_2fuse__common_8h.html#aec0ad71a3e8c357ebe7e87cdecbdbe18a32ec833f1eb4b5cd9283cf9d93021037">FUSE_BUF_SPLICE_NONBLOCK</a>)</div><div class="line"><a name="l00176"></a><span class="lineno"> 176</span>  splice_flags |= SPLICE_F_NONBLOCK;</div><div class="line"><a name="l00177"></a><span class="lineno"> 177</span> </div><div class="line"><a name="l00178"></a><span class="lineno"> 178</span>  <span class="keywordflow">if</span> (src-><a class="code" href="structfuse__buf.html#a1928e204554f2d37cb8dac28a8a2f28c">flags</a> & <a class="code" href="fuse-3_88_80_2include_2fuse__common_8h.html#a5e36b839c4dbf0439bd85b61c7213a58ad67d5c6075febad0594f06d46d02bfa9">FUSE_BUF_FD_SEEK</a>) {</div><div class="line"><a name="l00179"></a><span class="lineno"> 179</span>  srcpos_val = src-><a class="code" href="structfuse__buf.html#a8de23b7869b06b9a9caef6beb7c9e88e">pos</a> + src_off;</div><div class="line"><a name="l00180"></a><span class="lineno"> 180</span>  srcpos = &srcpos_val;</div><div class="line"><a name="l00181"></a><span class="lineno"> 181</span>  }</div><div class="line"><a name="l00182"></a><span class="lineno"> 182</span>  <span class="keywordflow">if</span> (dst-><a class="code" href="structfuse__buf.html#a1928e204554f2d37cb8dac28a8a2f28c">flags</a> & <a class="code" href="fuse-3_88_80_2include_2fuse__common_8h.html#a5e36b839c4dbf0439bd85b61c7213a58ad67d5c6075febad0594f06d46d02bfa9">FUSE_BUF_FD_SEEK</a>) {</div><div class="line"><a name="l00183"></a><span class="lineno"> 183</span>  dstpos_val = dst-><a class="code" href="structfuse__buf.html#a8de23b7869b06b9a9caef6beb7c9e88e">pos</a> + dst_off;</div><div class="line"><a name="l00184"></a><span class="lineno"> 184</span>  dstpos = &dstpos_val;</div><div class="line"><a name="l00185"></a><span class="lineno"> 185</span>  }</div><div class="line"><a name="l00186"></a><span class="lineno"> 186</span> </div><div class="line"><a name="l00187"></a><span class="lineno"> 187</span>  <span class="keywordflow">while</span> (len) {</div><div class="line"><a name="l00188"></a><span class="lineno"> 188</span>  res = splice(src-><a class="code" href="structfuse__buf.html#a62b2ae82904ac4355142984b9dd90d68">fd</a>, srcpos, dst-><a class="code" href="structfuse__buf.html#a62b2ae82904ac4355142984b9dd90d68">fd</a>, dstpos, len,</div><div class="line"><a name="l00189"></a><span class="lineno"> 189</span>  splice_flags);</div><div class="line"><a name="l00190"></a><span class="lineno"> 190</span>  <span class="keywordflow">if</span> (res == -1) {</div><div class="line"><a name="l00191"></a><span class="lineno"> 191</span>  <span class="keywordflow">if</span> (copied)</div><div class="line"><a name="l00192"></a><span class="lineno"> 192</span>  <span class="keywordflow">break</span>;</div><div class="line"><a name="l00193"></a><span class="lineno"> 193</span> </div><div class="line"><a name="l00194"></a><span class="lineno"> 194</span>  <span class="keywordflow">if</span> (errno != EINVAL || (flags & <a class="code" href="fuse-3_88_80_2include_2fuse__common_8h.html#aec0ad71a3e8c357ebe7e87cdecbdbe18a375767de945f5178e8949d284abf1f5b">FUSE_BUF_FORCE_SPLICE</a>))</div><div class="line"><a name="l00195"></a><span class="lineno"> 195</span>  <span class="keywordflow">return</span> -errno;</div><div class="line"><a name="l00196"></a><span class="lineno"> 196</span> </div><div class="line"><a name="l00197"></a><span class="lineno"> 197</span>  <span class="comment">/* Maybe splice is not supported for this combination */</span></div><div class="line"><a name="l00198"></a><span class="lineno"> 198</span>  <span class="keywordflow">return</span> fuse_buf_fd_to_fd(dst, dst_off, src, src_off,</div><div class="line"><a name="l00199"></a><span class="lineno"> 199</span>  len);</div><div class="line"><a name="l00200"></a><span class="lineno"> 200</span>  }</div><div class="line"><a name="l00201"></a><span class="lineno"> 201</span>  <span class="keywordflow">if</span> (res == 0)</div><div class="line"><a name="l00202"></a><span class="lineno"> 202</span>  <span class="keywordflow">break</span>;</div><div class="line"><a name="l00203"></a><span class="lineno"> 203</span> </div><div class="line"><a name="l00204"></a><span class="lineno"> 204</span>  copied += res;</div><div class="line"><a name="l00205"></a><span class="lineno"> 205</span>  <span class="keywordflow">if</span> (!(src-><a class="code" href="structfuse__buf.html#a1928e204554f2d37cb8dac28a8a2f28c">flags</a> & <a class="code" href="fuse-3_88_80_2include_2fuse__common_8h.html#a5e36b839c4dbf0439bd85b61c7213a58af89b4b00a2d4a06d8458b320c2cb28cf">FUSE_BUF_FD_RETRY</a>) &&</div><div class="line"><a name="l00206"></a><span class="lineno"> 206</span>  !(dst-><a class="code" href="structfuse__buf.html#a1928e204554f2d37cb8dac28a8a2f28c">flags</a> & <a class="code" href="fuse-3_88_80_2include_2fuse__common_8h.html#a5e36b839c4dbf0439bd85b61c7213a58af89b4b00a2d4a06d8458b320c2cb28cf">FUSE_BUF_FD_RETRY</a>)) {</div><div class="line"><a name="l00207"></a><span class="lineno"> 207</span>  <span class="keywordflow">break</span>;</div><div class="line"><a name="l00208"></a><span class="lineno"> 208</span>  }</div><div class="line"><a name="l00209"></a><span class="lineno"> 209</span> </div><div class="line"><a name="l00210"></a><span class="lineno"> 210</span>  len -= res;</div><div class="line"><a name="l00211"></a><span class="lineno"> 211</span>  }</div><div class="line"><a name="l00212"></a><span class="lineno"> 212</span> </div><div class="line"><a name="l00213"></a><span class="lineno"> 213</span>  <span class="keywordflow">return</span> copied;</div><div class="line"><a name="l00214"></a><span class="lineno"> 214</span> }</div><div class="line"><a name="l00215"></a><span class="lineno"> 215</span> <span class="preprocessor">#else</span></div><div class="line"><a name="l00216"></a><span class="lineno"> 216</span> <span class="keyword">static</span> ssize_t fuse_buf_splice(<span class="keyword">const</span> <span class="keyword">struct</span> <a class="code" href="structfuse__buf.html">fuse_buf</a> *dst, <span class="keywordtype">size_t</span> dst_off,</div><div class="line"><a name="l00217"></a><span class="lineno"> 217</span>  <span class="keyword">const</span> <span class="keyword">struct</span> <a class="code" href="structfuse__buf.html">fuse_buf</a> *src, <span class="keywordtype">size_t</span> src_off,</div><div class="line"><a name="l00218"></a><span class="lineno"> 218</span>  <span class="keywordtype">size_t</span> len, <span class="keyword">enum</span> <a class="code" href="fuse-3_88_80_2include_2fuse__common_8h.html#aec0ad71a3e8c357ebe7e87cdecbdbe18">fuse_buf_copy_flags</a> <a class="code" href="structfuse__buf.html#a1928e204554f2d37cb8dac28a8a2f28c">flags</a>)</div><div class="line"><a name="l00219"></a><span class="lineno"> 219</span> {</div><div class="line"><a name="l00220"></a><span class="lineno"> 220</span>  (void) flags;</div><div class="line"><a name="l00221"></a><span class="lineno"> 221</span> </div><div class="line"><a name="l00222"></a><span class="lineno"> 222</span>  <span class="keywordflow">return</span> fuse_buf_fd_to_fd(dst, dst_off, src, src_off, len);</div><div class="line"><a name="l00223"></a><span class="lineno"> 223</span> }</div><div class="line"><a name="l00224"></a><span class="lineno"> 224</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00225"></a><span class="lineno"> 225</span> </div><div class="line"><a name="l00226"></a><span class="lineno"> 226</span> </div><div class="line"><a name="l00227"></a><span class="lineno"> 227</span> <span class="keyword">static</span> ssize_t fuse_buf_copy_one(<span class="keyword">const</span> <span class="keyword">struct</span> <a class="code" href="structfuse__buf.html">fuse_buf</a> *dst, <span class="keywordtype">size_t</span> dst_off,</div><div class="line"><a name="l00228"></a><span class="lineno"> 228</span>  <span class="keyword">const</span> <span class="keyword">struct</span> <a class="code" href="structfuse__buf.html">fuse_buf</a> *src, <span class="keywordtype">size_t</span> src_off,</div><div class="line"><a name="l00229"></a><span class="lineno"> 229</span>  <span class="keywordtype">size_t</span> len, <span class="keyword">enum</span> <a class="code" href="fuse-3_88_80_2include_2fuse__common_8h.html#aec0ad71a3e8c357ebe7e87cdecbdbe18">fuse_buf_copy_flags</a> <a class="code" href="structfuse__buf.html#a1928e204554f2d37cb8dac28a8a2f28c">flags</a>)</div><div class="line"><a name="l00230"></a><span class="lineno"> 230</span> {</div><div class="line"><a name="l00231"></a><span class="lineno"> 231</span>  <span class="keywordtype">int</span> src_is_fd = src-><a class="code" href="structfuse__buf.html#a1928e204554f2d37cb8dac28a8a2f28c">flags</a> & <a class="code" href="fuse-3_88_80_2include_2fuse__common_8h.html#a5e36b839c4dbf0439bd85b61c7213a58affd5b3b7e9cdd5f89b3126eea96e033b">FUSE_BUF_IS_FD</a>;</div><div class="line"><a name="l00232"></a><span class="lineno"> 232</span>  <span class="keywordtype">int</span> dst_is_fd = dst-><a class="code" href="structfuse__buf.html#a1928e204554f2d37cb8dac28a8a2f28c">flags</a> & <a class="code" href="fuse-3_88_80_2include_2fuse__common_8h.html#a5e36b839c4dbf0439bd85b61c7213a58affd5b3b7e9cdd5f89b3126eea96e033b">FUSE_BUF_IS_FD</a>;</div><div class="line"><a name="l00233"></a><span class="lineno"> 233</span> </div><div class="line"><a name="l00234"></a><span class="lineno"> 234</span>  <span class="keywordflow">if</span> (!src_is_fd && !dst_is_fd) {</div><div class="line"><a name="l00235"></a><span class="lineno"> 235</span>  <span class="keywordtype">char</span> *dstmem = (<span class="keywordtype">char</span> *)dst-><a class="code" href="structfuse__buf.html#ac431db720526e68fd6c83eb0951ea1de">mem</a> + dst_off;</div><div class="line"><a name="l00236"></a><span class="lineno"> 236</span>  <span class="keywordtype">char</span> *srcmem = (<span class="keywordtype">char</span> *)src-><a class="code" href="structfuse__buf.html#ac431db720526e68fd6c83eb0951ea1de">mem</a> + src_off;</div><div class="line"><a name="l00237"></a><span class="lineno"> 237</span> </div><div class="line"><a name="l00238"></a><span class="lineno"> 238</span>  <span class="keywordflow">if</span> (dstmem != srcmem) {</div><div class="line"><a name="l00239"></a><span class="lineno"> 239</span>  <span class="keywordflow">if</span> (dstmem + len <= srcmem || srcmem + len <= dstmem)</div><div class="line"><a name="l00240"></a><span class="lineno"> 240</span>  memcpy(dstmem, srcmem, len);</div><div class="line"><a name="l00241"></a><span class="lineno"> 241</span>  <span class="keywordflow">else</span></div><div class="line"><a name="l00242"></a><span class="lineno"> 242</span>  memmove(dstmem, srcmem, len);</div><div class="line"><a name="l00243"></a><span class="lineno"> 243</span>  }</div><div class="line"><a name="l00244"></a><span class="lineno"> 244</span> </div><div class="line"><a name="l00245"></a><span class="lineno"> 245</span>  <span class="keywordflow">return</span> len;</div><div class="line"><a name="l00246"></a><span class="lineno"> 246</span>  } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (!src_is_fd) {</div><div class="line"><a name="l00247"></a><span class="lineno"> 247</span>  <span class="keywordflow">return</span> fuse_buf_write(dst, dst_off, src, src_off, len);</div><div class="line"><a name="l00248"></a><span class="lineno"> 248</span>  } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (!dst_is_fd) {</div><div class="line"><a name="l00249"></a><span class="lineno"> 249</span>  <span class="keywordflow">return</span> fuse_buf_read(dst, dst_off, src, src_off, len);</div><div class="line"><a name="l00250"></a><span class="lineno"> 250</span>  } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (flags & <a class="code" href="fuse-3_88_80_2include_2fuse__common_8h.html#aec0ad71a3e8c357ebe7e87cdecbdbe18adcef8052c48f314d4d9f9f05a5b4f838">FUSE_BUF_NO_SPLICE</a>) {</div><div class="line"><a name="l00251"></a><span class="lineno"> 251</span>  <span class="keywordflow">return</span> fuse_buf_fd_to_fd(dst, dst_off, src, src_off, len);</div><div class="line"><a name="l00252"></a><span class="lineno"> 252</span>  } <span class="keywordflow">else</span> {</div><div class="line"><a name="l00253"></a><span class="lineno"> 253</span>  <span class="keywordflow">return</span> fuse_buf_splice(dst, dst_off, src, src_off, len, flags);</div><div class="line"><a name="l00254"></a><span class="lineno"> 254</span>  }</div><div class="line"><a name="l00255"></a><span class="lineno"> 255</span> }</div><div class="line"><a name="l00256"></a><span class="lineno"> 256</span> </div><div class="line"><a name="l00257"></a><span class="lineno"> 257</span> <span class="keyword">static</span> <span class="keyword">const</span> <span class="keyword">struct </span><a class="code" href="structfuse__buf.html">fuse_buf</a> *fuse_bufvec_current(<span class="keyword">struct</span> <a class="code" href="structfuse__bufvec.html">fuse_bufvec</a> *bufv)</div><div class="line"><a name="l00258"></a><span class="lineno"> 258</span> {</div><div class="line"><a name="l00259"></a><span class="lineno"> 259</span>  <span class="keywordflow">if</span> (bufv-><a class="code" href="structfuse__bufvec.html#a41cc18cb303ee16d20b3ae1ebb0ef830">idx</a> < bufv-><a class="code" href="structfuse__bufvec.html#ac303661a9c39ade1feeb05d8238b4ed6">count</a>)</div><div class="line"><a name="l00260"></a><span class="lineno"> 260</span>  <span class="keywordflow">return</span> &bufv-><a class="code" href="structfuse__bufvec.html#a4182555be43b16c0778d0dd9eb2bf7c4">buf</a>[bufv-><a class="code" href="structfuse__bufvec.html#a41cc18cb303ee16d20b3ae1ebb0ef830">idx</a>];</div><div class="line"><a name="l00261"></a><span class="lineno"> 261</span>  <span class="keywordflow">else</span></div><div class="line"><a name="l00262"></a><span class="lineno"> 262</span>  <span class="keywordflow">return</span> NULL;</div><div class="line"><a name="l00263"></a><span class="lineno"> 263</span> }</div><div class="line"><a name="l00264"></a><span class="lineno"> 264</span> </div><div class="line"><a name="l00265"></a><span class="lineno"> 265</span> <span class="keyword">static</span> <span class="keywordtype">int</span> fuse_bufvec_advance(<span class="keyword">struct</span> <a class="code" href="structfuse__bufvec.html">fuse_bufvec</a> *bufv, <span class="keywordtype">size_t</span> len)</div><div class="line"><a name="l00266"></a><span class="lineno"> 266</span> {</div><div class="line"><a name="l00267"></a><span class="lineno"> 267</span>  <span class="keyword">const</span> <span class="keyword">struct </span><a class="code" href="structfuse__buf.html">fuse_buf</a> *buf = fuse_bufvec_current(bufv);</div><div class="line"><a name="l00268"></a><span class="lineno"> 268</span> </div><div class="line"><a name="l00269"></a><span class="lineno"> 269</span>  bufv-><a class="code" href="structfuse__bufvec.html#a0fbb583168d52562f0f848562ecf63bc">off</a> += len;</div><div class="line"><a name="l00270"></a><span class="lineno"> 270</span>  assert(bufv-><a class="code" href="structfuse__bufvec.html#a0fbb583168d52562f0f848562ecf63bc">off</a> <= buf-><a class="code" href="structfuse__buf.html#afb58c1e18f434d1d4edb784d00e2e13d">size</a>);</div><div class="line"><a name="l00271"></a><span class="lineno"> 271</span>  <span class="keywordflow">if</span> (bufv-><a class="code" href="structfuse__bufvec.html#a0fbb583168d52562f0f848562ecf63bc">off</a> == buf-><a class="code" href="structfuse__buf.html#afb58c1e18f434d1d4edb784d00e2e13d">size</a>) {</div><div class="line"><a name="l00272"></a><span class="lineno"> 272</span>  assert(bufv-><a class="code" href="structfuse__bufvec.html#a41cc18cb303ee16d20b3ae1ebb0ef830">idx</a> < bufv-><a class="code" href="structfuse__bufvec.html#ac303661a9c39ade1feeb05d8238b4ed6">count</a>);</div><div class="line"><a name="l00273"></a><span class="lineno"> 273</span>  bufv-><a class="code" href="structfuse__bufvec.html#a41cc18cb303ee16d20b3ae1ebb0ef830">idx</a>++;</div><div class="line"><a name="l00274"></a><span class="lineno"> 274</span>  <span class="keywordflow">if</span> (bufv-><a class="code" href="structfuse__bufvec.html#a41cc18cb303ee16d20b3ae1ebb0ef830">idx</a> == bufv-><a class="code" href="structfuse__bufvec.html#ac303661a9c39ade1feeb05d8238b4ed6">count</a>)</div><div class="line"><a name="l00275"></a><span class="lineno"> 275</span>  <span class="keywordflow">return</span> 0;</div><div class="line"><a name="l00276"></a><span class="lineno"> 276</span>  bufv-><a class="code" href="structfuse__bufvec.html#a0fbb583168d52562f0f848562ecf63bc">off</a> = 0;</div><div class="line"><a name="l00277"></a><span class="lineno"> 277</span>  }</div><div class="line"><a name="l00278"></a><span class="lineno"> 278</span>  <span class="keywordflow">return</span> 1;</div><div class="line"><a name="l00279"></a><span class="lineno"> 279</span> }</div><div class="line"><a name="l00280"></a><span class="lineno"> 280</span> </div><div class="line"><a name="l00281"></a><span class="lineno"><a class="line" href="include_2fuse__common_8h.html#a9ca301390fb5e85b85153abb1891a3f7"> 281</a></span> ssize_t <a class="code" href="fuse-3_88_80_2include_2fuse__common_8h.html#a9ca301390fb5e85b85153abb1891a3f7">fuse_buf_copy</a>(<span class="keyword">struct</span> <a class="code" href="structfuse__bufvec.html">fuse_bufvec</a> *dstv, <span class="keyword">struct</span> <a class="code" href="structfuse__bufvec.html">fuse_bufvec</a> *srcv,</div><div class="line"><a name="l00282"></a><span class="lineno"> 282</span>  <span class="keyword">enum</span> <a class="code" href="fuse-3_88_80_2include_2fuse__common_8h.html#aec0ad71a3e8c357ebe7e87cdecbdbe18">fuse_buf_copy_flags</a> <a class="code" href="structfuse__buf.html#a1928e204554f2d37cb8dac28a8a2f28c">flags</a>)</div><div class="line"><a name="l00283"></a><span class="lineno"> 283</span> {</div><div class="line"><a name="l00284"></a><span class="lineno"> 284</span>  <span class="keywordtype">size_t</span> copied = 0;</div><div class="line"><a name="l00285"></a><span class="lineno"> 285</span> </div><div class="line"><a name="l00286"></a><span class="lineno"> 286</span>  <span class="keywordflow">if</span> (dstv == srcv)</div><div class="line"><a name="l00287"></a><span class="lineno"> 287</span>  <span class="keywordflow">return</span> <a class="code" href="fuse-3_88_80_2include_2fuse__common_8h.html#a4327f41b2fe1ca84151b407169bd86c0">fuse_buf_size</a>(dstv);</div><div class="line"><a name="l00288"></a><span class="lineno"> 288</span> </div><div class="line"><a name="l00289"></a><span class="lineno"> 289</span>  <span class="keywordflow">for</span> (;;) {</div><div class="line"><a name="l00290"></a><span class="lineno"> 290</span>  <span class="keyword">const</span> <span class="keyword">struct </span><a class="code" href="structfuse__buf.html">fuse_buf</a> *src = fuse_bufvec_current(srcv);</div><div class="line"><a name="l00291"></a><span class="lineno"> 291</span>  <span class="keyword">const</span> <span class="keyword">struct </span><a class="code" href="structfuse__buf.html">fuse_buf</a> *dst = fuse_bufvec_current(dstv);</div><div class="line"><a name="l00292"></a><span class="lineno"> 292</span>  <span class="keywordtype">size_t</span> src_len;</div><div class="line"><a name="l00293"></a><span class="lineno"> 293</span>  <span class="keywordtype">size_t</span> dst_len;</div><div class="line"><a name="l00294"></a><span class="lineno"> 294</span>  <span class="keywordtype">size_t</span> len;</div><div class="line"><a name="l00295"></a><span class="lineno"> 295</span>  ssize_t res;</div><div class="line"><a name="l00296"></a><span class="lineno"> 296</span> </div><div class="line"><a name="l00297"></a><span class="lineno"> 297</span>  <span class="keywordflow">if</span> (src == NULL || dst == NULL)</div><div class="line"><a name="l00298"></a><span class="lineno"> 298</span>  <span class="keywordflow">break</span>;</div><div class="line"><a name="l00299"></a><span class="lineno"> 299</span> </div><div class="line"><a name="l00300"></a><span class="lineno"> 300</span>  src_len = src-><a class="code" href="structfuse__buf.html#afb58c1e18f434d1d4edb784d00e2e13d">size</a> - srcv-><a class="code" href="structfuse__bufvec.html#a0fbb583168d52562f0f848562ecf63bc">off</a>;</div><div class="line"><a name="l00301"></a><span class="lineno"> 301</span>  dst_len = dst-><a class="code" href="structfuse__buf.html#afb58c1e18f434d1d4edb784d00e2e13d">size</a> - dstv-><a class="code" href="structfuse__bufvec.html#a0fbb583168d52562f0f848562ecf63bc">off</a>;</div><div class="line"><a name="l00302"></a><span class="lineno"> 302</span>  len = min_size(src_len, dst_len);</div><div class="line"><a name="l00303"></a><span class="lineno"> 303</span> </div><div class="line"><a name="l00304"></a><span class="lineno"> 304</span>  res = fuse_buf_copy_one(dst, dstv-><a class="code" href="structfuse__bufvec.html#a0fbb583168d52562f0f848562ecf63bc">off</a>, src, srcv-><a class="code" href="structfuse__bufvec.html#a0fbb583168d52562f0f848562ecf63bc">off</a>, len, flags);</div><div class="line"><a name="l00305"></a><span class="lineno"> 305</span>  <span class="keywordflow">if</span> (res < 0) {</div><div class="line"><a name="l00306"></a><span class="lineno"> 306</span>  <span class="keywordflow">if</span> (!copied)</div><div class="line"><a name="l00307"></a><span class="lineno"> 307</span>  <span class="keywordflow">return</span> res;</div><div class="line"><a name="l00308"></a><span class="lineno"> 308</span>  <span class="keywordflow">break</span>;</div><div class="line"><a name="l00309"></a><span class="lineno"> 309</span>  }</div><div class="line"><a name="l00310"></a><span class="lineno"> 310</span>  copied += res;</div><div class="line"><a name="l00311"></a><span class="lineno"> 311</span> </div><div class="line"><a name="l00312"></a><span class="lineno"> 312</span>  <span class="keywordflow">if</span> (!fuse_bufvec_advance(srcv, res) ||</div><div class="line"><a name="l00313"></a><span class="lineno"> 313</span>  !fuse_bufvec_advance(dstv, res))</div><div class="line"><a name="l00314"></a><span class="lineno"> 314</span>  <span class="keywordflow">break</span>;</div><div class="line"><a name="l00315"></a><span class="lineno"> 315</span> </div><div class="line"><a name="l00316"></a><span class="lineno"> 316</span>  <span class="keywordflow">if</span> (res < len)</div><div class="line"><a name="l00317"></a><span class="lineno"> 317</span>  <span class="keywordflow">break</span>;</div><div class="line"><a name="l00318"></a><span class="lineno"> 318</span>  }</div><div class="line"><a name="l00319"></a><span class="lineno"> 319</span> </div><div class="line"><a name="l00320"></a><span class="lineno"> 320</span>  <span class="keywordflow">return</span> copied;</div><div class="line"><a name="l00321"></a><span class="lineno"> 321</span> }</div><div class="ttc" id="structfuse__bufvec_html_a0fbb583168d52562f0f848562ecf63bc"><div class="ttname"><a href="structfuse__bufvec.html#a0fbb583168d52562f0f848562ecf63bc">fuse_bufvec::off</a></div><div class="ttdeci">size_t off</div><div class="ttdef"><b>Definition:</b> <a href="fuse-3_88_80_2include_2fuse__common_8h_source.html#l00721">fuse_common.h:721</a></div></div>
<div class="ttc" id="structfuse__buf_html_a8de23b7869b06b9a9caef6beb7c9e88e"><div class="ttname"><a href="structfuse__buf.html#a8de23b7869b06b9a9caef6beb7c9e88e">fuse_buf::pos</a></div><div class="ttdeci">off_t pos</div><div class="ttdef"><b>Definition:</b> <a href="fuse-3_88_80_2include_2fuse__common_8h_source.html#l00696">fuse_common.h:696</a></div></div>
<div class="ttc" id="fuse-3_88_80_2include_2fuse__common_8h_html_aec0ad71a3e8c357ebe7e87cdecbdbe18a375767de945f5178e8949d284abf1f5b"><div class="ttname"><a href="fuse-3_88_80_2include_2fuse__common_8h.html#aec0ad71a3e8c357ebe7e87cdecbdbe18a375767de945f5178e8949d284abf1f5b">FUSE_BUF_FORCE_SPLICE</a></div><div class="ttdef"><b>Definition:</b> <a href="fuse-3_88_80_2include_2fuse__common_8h_source.html#l00639">fuse_common.h:639</a></div></div>
<div class="ttc" id="fuse-3_88_80_2include_2fuse__common_8h_html_aec0ad71a3e8c357ebe7e87cdecbdbe18"><div class="ttname"><a href="fuse-3_88_80_2include_2fuse__common_8h.html#aec0ad71a3e8c357ebe7e87cdecbdbe18">fuse_buf_copy_flags</a></div><div class="ttdeci">fuse_buf_copy_flags</div><div class="ttdef"><b>Definition:</b> <a href="fuse-3_88_80_2include_2fuse__common_8h_source.html#l00621">fuse_common.h:621</a></div></div>
<div class="ttc" id="structfuse__bufvec_html"><div class="ttname"><a href="structfuse__bufvec.html">fuse_bufvec</a></div><div class="ttdef"><b>Definition:</b> <a href="fuse-3_88_80_2include_2fuse__common_8h_source.html#l00707">fuse_common.h:707</a></div></div>
<div class="ttc" id="structfuse__bufvec_html_a41cc18cb303ee16d20b3ae1ebb0ef830"><div class="ttname"><a href="structfuse__bufvec.html#a41cc18cb303ee16d20b3ae1ebb0ef830">fuse_bufvec::idx</a></div><div class="ttdeci">size_t idx</div><div class="ttdef"><b>Definition:</b> <a href="fuse-3_88_80_2include_2fuse__common_8h_source.html#l00716">fuse_common.h:716</a></div></div>
<div class="ttc" id="structfuse__bufvec_html_ac303661a9c39ade1feeb05d8238b4ed6"><div class="ttname"><a href="structfuse__bufvec.html#ac303661a9c39ade1feeb05d8238b4ed6">fuse_bufvec::count</a></div><div class="ttdeci">size_t count</div><div class="ttdef"><b>Definition:</b> <a href="fuse-3_88_80_2include_2fuse__common_8h_source.html#l00711">fuse_common.h:711</a></div></div>
<div class="ttc" id="structfuse__buf_html_a1928e204554f2d37cb8dac28a8a2f28c"><div class="ttname"><a href="structfuse__buf.html#a1928e204554f2d37cb8dac28a8a2f28c">fuse_buf::flags</a></div><div class="ttdeci">enum fuse_buf_flags flags</div><div class="ttdef"><b>Definition:</b> <a href="fuse-3_88_80_2include_2fuse__common_8h_source.html#l00675">fuse_common.h:675</a></div></div>
<div class="ttc" id="fuse-3_88_80_2include_2fuse__common_8h_html_aec0ad71a3e8c357ebe7e87cdecbdbe18a32ec833f1eb4b5cd9283cf9d93021037"><div class="ttname"><a href="fuse-3_88_80_2include_2fuse__common_8h.html#aec0ad71a3e8c357ebe7e87cdecbdbe18a32ec833f1eb4b5cd9283cf9d93021037">FUSE_BUF_SPLICE_NONBLOCK</a></div><div class="ttdef"><b>Definition:</b> <a href="fuse-3_88_80_2include_2fuse__common_8h_source.html#l00657">fuse_common.h:657</a></div></div>
<div class="ttc" id="fuse-3_88_80_2include_2fuse__common_8h_html_a9ca301390fb5e85b85153abb1891a3f7"><div class="ttname"><a href="fuse-3_88_80_2include_2fuse__common_8h.html#a9ca301390fb5e85b85153abb1891a3f7">fuse_buf_copy</a></div><div class="ttdeci">ssize_t fuse_buf_copy(struct fuse_bufvec *dst, struct fuse_bufvec *src, enum fuse_buf_copy_flags flags)</div><div class="ttdef"><b>Definition:</b> <a href="fuse-3_88_80_2lib_2buffer_8c_source.html#l00281">buffer.c:281</a></div></div>
<div class="ttc" id="fuse-3_88_80_2include_2fuse__common_8h_html_a5e36b839c4dbf0439bd85b61c7213a58ad67d5c6075febad0594f06d46d02bfa9"><div class="ttname"><a href="fuse-3_88_80_2include_2fuse__common_8h.html#a5e36b839c4dbf0439bd85b61c7213a58ad67d5c6075febad0594f06d46d02bfa9">FUSE_BUF_FD_SEEK</a></div><div class="ttdef"><b>Definition:</b> <a href="fuse-3_88_80_2include_2fuse__common_8h_source.html#l00606">fuse_common.h:606</a></div></div>
<div class="ttc" id="fuse-3_88_80_2include_2fuse__common_8h_html_a4327f41b2fe1ca84151b407169bd86c0"><div class="ttname"><a href="fuse-3_88_80_2include_2fuse__common_8h.html#a4327f41b2fe1ca84151b407169bd86c0">fuse_buf_size</a></div><div class="ttdeci">size_t fuse_buf_size(const struct fuse_bufvec *bufv)</div><div class="ttdef"><b>Definition:</b> <a href="fuse-3_88_80_2lib_2buffer_8c_source.html#l00022">buffer.c:22</a></div></div>
<div class="ttc" id="fuse-3_88_80_2include_2fuse__common_8h_html_aec0ad71a3e8c357ebe7e87cdecbdbe18af239e556066a5d73b3ff542216b157b9"><div class="ttname"><a href="fuse-3_88_80_2include_2fuse__common_8h.html#aec0ad71a3e8c357ebe7e87cdecbdbe18af239e556066a5d73b3ff542216b157b9">FUSE_BUF_SPLICE_MOVE</a></div><div class="ttdef"><b>Definition:</b> <a href="fuse-3_88_80_2include_2fuse__common_8h_source.html#l00648">fuse_common.h:648</a></div></div>
<div class="ttc" id="structfuse__buf_html_ac431db720526e68fd6c83eb0951ea1de"><div class="ttname"><a href="structfuse__buf.html#ac431db720526e68fd6c83eb0951ea1de">fuse_buf::mem</a></div><div class="ttdeci">void * mem</div><div class="ttdef"><b>Definition:</b> <a href="fuse-3_88_80_2include_2fuse__common_8h_source.html#l00682">fuse_common.h:682</a></div></div>
<div class="ttc" id="structfuse__bufvec_html_a4182555be43b16c0778d0dd9eb2bf7c4"><div class="ttname"><a href="structfuse__bufvec.html#a4182555be43b16c0778d0dd9eb2bf7c4">fuse_bufvec::buf</a></div><div class="ttdeci">struct fuse_buf buf[1]</div><div class="ttdef"><b>Definition:</b> <a href="fuse-3_88_80_2include_2fuse__common_8h_source.html#l00726">fuse_common.h:726</a></div></div>
<div class="ttc" id="fuse-3_88_80_2include_2fuse__common_8h_html_a5e36b839c4dbf0439bd85b61c7213a58af89b4b00a2d4a06d8458b320c2cb28cf"><div class="ttname"><a href="fuse-3_88_80_2include_2fuse__common_8h.html#a5e36b839c4dbf0439bd85b61c7213a58af89b4b00a2d4a06d8458b320c2cb28cf">FUSE_BUF_FD_RETRY</a></div><div class="ttdef"><b>Definition:</b> <a href="fuse-3_88_80_2include_2fuse__common_8h_source.html#l00615">fuse_common.h:615</a></div></div>
<div class="ttc" id="structfuse__buf_html_afb58c1e18f434d1d4edb784d00e2e13d"><div class="ttname"><a href="structfuse__buf.html#afb58c1e18f434d1d4edb784d00e2e13d">fuse_buf::size</a></div><div class="ttdeci">size_t size</div><div class="ttdef"><b>Definition:</b> <a href="fuse-3_88_80_2include_2fuse__common_8h_source.html#l00670">fuse_common.h:670</a></div></div>
<div class="ttc" id="structfuse__buf_html_a62b2ae82904ac4355142984b9dd90d68"><div class="ttname"><a href="structfuse__buf.html#a62b2ae82904ac4355142984b9dd90d68">fuse_buf::fd</a></div><div class="ttdeci">int fd</div><div class="ttdef"><b>Definition:</b> <a href="fuse-3_88_80_2include_2fuse__common_8h_source.html#l00689">fuse_common.h:689</a></div></div>
<div class="ttc" id="fuse-3_88_80_2include_2fuse__common_8h_html_aec0ad71a3e8c357ebe7e87cdecbdbe18adcef8052c48f314d4d9f9f05a5b4f838"><div class="ttname"><a href="fuse-3_88_80_2include_2fuse__common_8h.html#aec0ad71a3e8c357ebe7e87cdecbdbe18adcef8052c48f314d4d9f9f05a5b4f838">FUSE_BUF_NO_SPLICE</a></div><div class="ttdef"><b>Definition:</b> <a href="fuse-3_88_80_2include_2fuse__common_8h_source.html#l00631">fuse_common.h:631</a></div></div>
<div class="ttc" id="fuse-3_88_80_2include_2fuse__common_8h_html_a5e36b839c4dbf0439bd85b61c7213a58affd5b3b7e9cdd5f89b3126eea96e033b"><div class="ttname"><a href="fuse-3_88_80_2include_2fuse__common_8h.html#a5e36b839c4dbf0439bd85b61c7213a58affd5b3b7e9cdd5f89b3126eea96e033b">FUSE_BUF_IS_FD</a></div><div class="ttdef"><b>Definition:</b> <a href="fuse-3_88_80_2include_2fuse__common_8h_source.html#l00597">fuse_common.h:597</a></div></div>
<div class="ttc" id="structfuse__buf_html"><div class="ttname"><a href="structfuse__buf.html">fuse_buf</a></div><div class="ttdef"><b>Definition:</b> <a href="fuse-3_88_80_2include_2fuse__common_8h_source.html#l00666">fuse_common.h:666</a></div></div>
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