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<div class="title">slice.h</div> </div>
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<a href="slice_8h.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span>&#160;<span class="comment">/*</span></div>
<div class="line"><a name="l00002"></a><span class="lineno"> 2</span>&#160;<span class="comment"> *</span></div>
<div class="line"><a name="l00003"></a><span class="lineno"> 3</span>&#160;<span class="comment"> * Copyright 2015, Google Inc.</span></div>
<div class="line"><a name="l00004"></a><span class="lineno"> 4</span>&#160;<span class="comment"> * All rights reserved.</span></div>
<div class="line"><a name="l00005"></a><span class="lineno"> 5</span>&#160;<span class="comment"> *</span></div>
<div class="line"><a name="l00006"></a><span class="lineno"> 6</span>&#160;<span class="comment"> * Redistribution and use in source and binary forms, with or without</span></div>
<div class="line"><a name="l00007"></a><span class="lineno"> 7</span>&#160;<span class="comment"> * modification, are permitted provided that the following conditions are</span></div>
<div class="line"><a name="l00008"></a><span class="lineno"> 8</span>&#160;<span class="comment"> * met:</span></div>
<div class="line"><a name="l00009"></a><span class="lineno"> 9</span>&#160;<span class="comment"> *</span></div>
<div class="line"><a name="l00010"></a><span class="lineno"> 10</span>&#160;<span class="comment"> * * Redistributions of source code must retain the above copyright</span></div>
<div class="line"><a name="l00011"></a><span class="lineno"> 11</span>&#160;<span class="comment"> * notice, this list of conditions and the following disclaimer.</span></div>
<div class="line"><a name="l00012"></a><span class="lineno"> 12</span>&#160;<span class="comment"> * * Redistributions in binary form must reproduce the above</span></div>
<div class="line"><a name="l00013"></a><span class="lineno"> 13</span>&#160;<span class="comment"> * copyright notice, this list of conditions and the following disclaimer</span></div>
<div class="line"><a name="l00014"></a><span class="lineno"> 14</span>&#160;<span class="comment"> * in the documentation and/or other materials provided with the</span></div>
<div class="line"><a name="l00015"></a><span class="lineno"> 15</span>&#160;<span class="comment"> * distribution.</span></div>
<div class="line"><a name="l00016"></a><span class="lineno"> 16</span>&#160;<span class="comment"> * * Neither the name of Google Inc. nor the names of its</span></div>
<div class="line"><a name="l00017"></a><span class="lineno"> 17</span>&#160;<span class="comment"> * contributors may be used to endorse or promote products derived from</span></div>
<div class="line"><a name="l00018"></a><span class="lineno"> 18</span>&#160;<span class="comment"> * this software without specific prior written permission.</span></div>
<div class="line"><a name="l00019"></a><span class="lineno"> 19</span>&#160;<span class="comment"> *</span></div>
<div class="line"><a name="l00020"></a><span class="lineno"> 20</span>&#160;<span class="comment"> * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS</span></div>
<div class="line"><a name="l00021"></a><span class="lineno"> 21</span>&#160;<span class="comment"> * &quot;AS IS&quot; AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT</span></div>
<div class="line"><a name="l00022"></a><span class="lineno"> 22</span>&#160;<span class="comment"> * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR</span></div>
<div class="line"><a name="l00023"></a><span class="lineno"> 23</span>&#160;<span class="comment"> * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT</span></div>
<div class="line"><a name="l00024"></a><span class="lineno"> 24</span>&#160;<span class="comment"> * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,</span></div>
<div class="line"><a name="l00025"></a><span class="lineno"> 25</span>&#160;<span class="comment"> * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT</span></div>
<div class="line"><a name="l00026"></a><span class="lineno"> 26</span>&#160;<span class="comment"> * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,</span></div>
<div class="line"><a name="l00027"></a><span class="lineno"> 27</span>&#160;<span class="comment"> * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY</span></div>
<div class="line"><a name="l00028"></a><span class="lineno"> 28</span>&#160;<span class="comment"> * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT</span></div>
<div class="line"><a name="l00029"></a><span class="lineno"> 29</span>&#160;<span class="comment"> * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE</span></div>
<div class="line"><a name="l00030"></a><span class="lineno"> 30</span>&#160;<span class="comment"> * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.</span></div>
<div class="line"><a name="l00031"></a><span class="lineno"> 31</span>&#160;<span class="comment"> *</span></div>
<div class="line"><a name="l00032"></a><span class="lineno"> 32</span>&#160;<span class="comment"> */</span></div>
<div class="line"><a name="l00033"></a><span class="lineno"> 33</span>&#160;</div>
<div class="line"><a name="l00034"></a><span class="lineno"> 34</span>&#160;<span class="preprocessor">#ifndef GRPC_SUPPORT_SLICE_H</span></div>
<div class="line"><a name="l00035"></a><span class="lineno"> 35</span>&#160;<span class="preprocessor"></span><span class="preprocessor">#define GRPC_SUPPORT_SLICE_H</span></div>
<div class="line"><a name="l00036"></a><span class="lineno"> 36</span>&#160;<span class="preprocessor"></span></div>
<div class="line"><a name="l00037"></a><span class="lineno"> 37</span>&#160;<span class="preprocessor">#include &lt;<a class="code" href="sync_8h.html">grpc/support/sync.h</a>&gt;</span></div>
<div class="line"><a name="l00038"></a><span class="lineno"> 38</span>&#160;</div>
<div class="line"><a name="l00039"></a><span class="lineno"> 39</span>&#160;<span class="preprocessor">#include &lt;stddef.h&gt;</span></div>
<div class="line"><a name="l00040"></a><span class="lineno"> 40</span>&#160;</div>
<div class="line"><a name="l00041"></a><span class="lineno"> 41</span>&#160;<span class="preprocessor">#ifdef __cplusplus</span></div>
<div class="line"><a name="l00042"></a><span class="lineno"> 42</span>&#160;<span class="preprocessor"></span><span class="keyword">extern</span> <span class="stringliteral">&quot;C&quot;</span> {</div>
<div class="line"><a name="l00043"></a><span class="lineno"> 43</span>&#160;<span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00044"></a><span class="lineno"> 44</span>&#160;<span class="preprocessor"></span></div>
<div class="line"><a name="l00045"></a><span class="lineno"> 45</span>&#160;<span class="comment">/* Slice API</span></div>
<div class="line"><a name="l00046"></a><span class="lineno"> 46</span>&#160;<span class="comment"></span></div>
<div class="line"><a name="l00047"></a><span class="lineno"> 47</span>&#160;<span class="comment"> A slice represents a contiguous reference counted array of bytes.</span></div>
<div class="line"><a name="l00048"></a><span class="lineno"> 48</span>&#160;<span class="comment"> It is cheap to take references to a slice, and it is cheap to create a</span></div>
<div class="line"><a name="l00049"></a><span class="lineno"> 49</span>&#160;<span class="comment"> slice pointing to a subset of another slice.</span></div>
<div class="line"><a name="l00050"></a><span class="lineno"> 50</span>&#160;<span class="comment"></span></div>
<div class="line"><a name="l00051"></a><span class="lineno"> 51</span>&#160;<span class="comment"> The data-structure for slices is exposed here to allow non-gpr code to</span></div>
<div class="line"><a name="l00052"></a><span class="lineno"> 52</span>&#160;<span class="comment"> build slices from whatever data they have available.</span></div>
<div class="line"><a name="l00053"></a><span class="lineno"> 53</span>&#160;<span class="comment"></span></div>
<div class="line"><a name="l00054"></a><span class="lineno"> 54</span>&#160;<span class="comment"> When defining interfaces that handle slices, care should be taken to define</span></div>
<div class="line"><a name="l00055"></a><span class="lineno"> 55</span>&#160;<span class="comment"> reference ownership semantics (who should call unref?) and mutability</span></div>
<div class="line"><a name="l00056"></a><span class="lineno"> 56</span>&#160;<span class="comment"> constraints (is the callee allowed to modify the slice?) */</span></div>
<div class="line"><a name="l00057"></a><span class="lineno"> 57</span>&#160;</div>
<div class="line"><a name="l00058"></a><span class="lineno"> 58</span>&#160;<span class="comment">/* Reference count container for gpr_slice. Contains function pointers to</span></div>
<div class="line"><a name="l00059"></a><span class="lineno"> 59</span>&#160;<span class="comment"> increment and decrement reference counts. Implementations should cleanup</span></div>
<div class="line"><a name="l00060"></a><span class="lineno"> 60</span>&#160;<span class="comment"> when the reference count drops to zero.</span></div>
<div class="line"><a name="l00061"></a><span class="lineno"> 61</span>&#160;<span class="comment"> Typically client code should not touch this, and use gpr_slice_malloc,</span></div>
<div class="line"><a name="l00062"></a><span class="lineno"> 62</span>&#160;<span class="comment"> gpr_slice_new, or gpr_slice_new_with_len instead. */</span></div>
<div class="line"><a name="l00063"></a><span class="lineno"><a class="line" href="structgpr__slice__refcount.html"> 63</a></span>&#160;<span class="keyword">typedef</span> <span class="keyword">struct </span><a class="code" href="structgpr__slice__refcount.html">gpr_slice_refcount</a> {</div>
<div class="line"><a name="l00064"></a><span class="lineno"><a class="line" href="structgpr__slice__refcount.html#abf3fba35fdc6a4cd2d47e5ca19107ed7"> 64</a></span>&#160; void (*<a class="code" href="structgpr__slice__refcount.html#abf3fba35fdc6a4cd2d47e5ca19107ed7">ref</a>)(<span class="keywordtype">void</span> *);</div>
<div class="line"><a name="l00065"></a><span class="lineno"><a class="line" href="structgpr__slice__refcount.html#ae31a3f84f0032dd388418eee26aa9c00"> 65</a></span>&#160; void (*<a class="code" href="structgpr__slice__refcount.html#ae31a3f84f0032dd388418eee26aa9c00">unref</a>)(<span class="keywordtype">void</span> *);</div>
<div class="line"><a name="l00066"></a><span class="lineno"> 66</span>&#160;} <a class="code" href="slice_8h.html#af8841873e741f6cf38b2192147ea4f3e">gpr_slice_refcount</a>;</div>
<div class="line"><a name="l00067"></a><span class="lineno"> 67</span>&#160;</div>
<div class="line"><a name="l00068"></a><span class="lineno"><a class="line" href="slice_8h.html#a4063c3d8d4820472a4cf2655dd662a31"> 68</a></span>&#160;<span class="preprocessor">#define GPR_SLICE_INLINED_SIZE (sizeof(size_t) + sizeof(gpr_uint8 *) - 1)</span></div>
<div class="line"><a name="l00069"></a><span class="lineno"> 69</span>&#160;<span class="preprocessor"></span></div>
<div class="line"><a name="l00070"></a><span class="lineno"> 70</span>&#160;<span class="comment">/* A gpr_slice s, if initialized, represents the byte range</span></div>
<div class="line"><a name="l00071"></a><span class="lineno"> 71</span>&#160;<span class="comment"> s.bytes[0..s.length-1].</span></div>
<div class="line"><a name="l00072"></a><span class="lineno"> 72</span>&#160;<span class="comment"></span></div>
<div class="line"><a name="l00073"></a><span class="lineno"> 73</span>&#160;<span class="comment"> It can have an associated ref count which has a destruction routine to be run</span></div>
<div class="line"><a name="l00074"></a><span class="lineno"> 74</span>&#160;<span class="comment"> when the ref count reaches zero (see gpr_slice_new() and grp_slice_unref()).</span></div>
<div class="line"><a name="l00075"></a><span class="lineno"> 75</span>&#160;<span class="comment"> Multiple gpr_slice values may share a ref count.</span></div>
<div class="line"><a name="l00076"></a><span class="lineno"> 76</span>&#160;<span class="comment"></span></div>
<div class="line"><a name="l00077"></a><span class="lineno"> 77</span>&#160;<span class="comment"> If the slice does not have a refcount, it represents an inlined small piece</span></div>
<div class="line"><a name="l00078"></a><span class="lineno"> 78</span>&#160;<span class="comment"> of data that is copied by value. */</span></div>
<div class="line"><a name="l00079"></a><span class="lineno"><a class="line" href="structgpr__slice.html"> 79</a></span>&#160;<span class="keyword">typedef</span> <span class="keyword">struct </span><a class="code" href="structgpr__slice.html">gpr_slice</a> {</div>
<div class="line"><a name="l00080"></a><span class="lineno"><a class="line" href="structgpr__slice.html#a04d0bcc8331409fa3b3af29ee0b86a24"> 80</a></span>&#160; <span class="keyword">struct </span><a class="code" href="structgpr__slice__refcount.html">gpr_slice_refcount</a> *<a class="code" href="structgpr__slice.html#a04d0bcc8331409fa3b3af29ee0b86a24">refcount</a>;</div>
<div class="line"><a name="l00081"></a><span class="lineno"> 81</span>&#160; <span class="keyword">union </span>{</div>
<div class="line"><a name="l00082"></a><span class="lineno"> 82</span>&#160; <span class="keyword">struct </span>{</div>
<div class="line"><a name="l00083"></a><span class="lineno"><a class="line" href="structgpr__slice.html#a16646e1a137851f2b031cf2c431b2864"> 83</a></span>&#160; <a class="code" href="port__platform_8h.html#aeeb41e29e7c7a916a4e0fb6cfb9f92e0">gpr_uint8</a> *<a class="code" href="structgpr__slice.html#a16646e1a137851f2b031cf2c431b2864">bytes</a>;</div>
<div class="line"><a name="l00084"></a><span class="lineno"><a class="line" href="structgpr__slice.html#a8867b2d660a87061534be9c8098d4fa5"> 84</a></span>&#160; <span class="keywordtype">size_t</span> <a class="code" href="structgpr__slice.html#a8867b2d660a87061534be9c8098d4fa5">length</a>;</div>
<div class="line"><a name="l00085"></a><span class="lineno"> 85</span>&#160; } <a class="code" href="structgpr__slice.html#a50bbfa04c0c8f5db1190cbc86bdfd102">refcounted</a>;</div>
<div class="line"><a name="l00086"></a><span class="lineno"> 86</span>&#160; <span class="keyword">struct </span>{</div>
<div class="line"><a name="l00087"></a><span class="lineno"><a class="line" href="structgpr__slice.html#acd3242f89b2999d12788e65337662cf3"> 87</a></span>&#160; <a class="code" href="port__platform_8h.html#aeeb41e29e7c7a916a4e0fb6cfb9f92e0">gpr_uint8</a> <a class="code" href="structgpr__slice.html#acd3242f89b2999d12788e65337662cf3">length</a>;</div>
<div class="line"><a name="l00088"></a><span class="lineno"><a class="line" href="structgpr__slice.html#a39592633c4ad594a15b3a52aadff398d"> 88</a></span>&#160; <a class="code" href="port__platform_8h.html#aeeb41e29e7c7a916a4e0fb6cfb9f92e0">gpr_uint8</a> <a class="code" href="structgpr__slice.html#a16646e1a137851f2b031cf2c431b2864">bytes</a>[<a class="code" href="slice_8h.html#a4063c3d8d4820472a4cf2655dd662a31">GPR_SLICE_INLINED_SIZE</a>];</div>
<div class="line"><a name="l00089"></a><span class="lineno"> 89</span>&#160; } <a class="code" href="structgpr__slice.html#a1fd4cfd75079d6f30184f0340276eb28">inlined</a>;</div>
<div class="line"><a name="l00090"></a><span class="lineno"> 90</span>&#160; } <a class="code" href="structgpr__slice.html#a122218a8a00205225f56ee71ade6e8da">data</a>;</div>
<div class="line"><a name="l00091"></a><span class="lineno"> 91</span>&#160;} <a class="code" href="slice_8h.html#a91fe16db371db7c53d6e3adc90a6678c">gpr_slice</a>;</div>
<div class="line"><a name="l00092"></a><span class="lineno"> 92</span>&#160;</div>
<div class="line"><a name="l00093"></a><span class="lineno"><a class="line" href="slice_8h.html#ab8258afc3398c1426974b0b48dbf5a15"> 93</a></span>&#160;<span class="preprocessor">#define GPR_SLICE_START_PTR(slice) \</span></div>
<div class="line"><a name="l00094"></a><span class="lineno"> 94</span>&#160;<span class="preprocessor"> ((slice).refcount ? (slice).data.refcounted.bytes \</span></div>
<div class="line"><a name="l00095"></a><span class="lineno"> 95</span>&#160;<span class="preprocessor"> : (slice).data.inlined.bytes)</span></div>
<div class="line"><a name="l00096"></a><span class="lineno"><a class="line" href="slice_8h.html#ae97c2f992c1ebccaf44ceeee1f9fdabb"> 96</a></span>&#160;<span class="preprocessor"></span><span class="preprocessor">#define GPR_SLICE_LENGTH(slice) \</span></div>
<div class="line"><a name="l00097"></a><span class="lineno"> 97</span>&#160;<span class="preprocessor"> ((slice).refcount ? (slice).data.refcounted.length \</span></div>
<div class="line"><a name="l00098"></a><span class="lineno"> 98</span>&#160;<span class="preprocessor"> : (slice).data.inlined.length)</span></div>
<div class="line"><a name="l00099"></a><span class="lineno"><a class="line" href="slice_8h.html#a1f5333a1260aef2efe086d4e2188e613"> 99</a></span>&#160;<span class="preprocessor"></span><span class="preprocessor">#define GPR_SLICE_SET_LENGTH(slice, newlen) \</span></div>
<div class="line"><a name="l00100"></a><span class="lineno"> 100</span>&#160;<span class="preprocessor"> ((slice).refcount ? ((slice).data.refcounted.length = (size_t)(newlen)) \</span></div>
<div class="line"><a name="l00101"></a><span class="lineno"> 101</span>&#160;<span class="preprocessor"> : ((slice).data.inlined.length = (gpr_uint8)(newlen)))</span></div>
<div class="line"><a name="l00102"></a><span class="lineno"><a class="line" href="slice_8h.html#a9b7e9acd0eb92039a9bc897712a62a14"> 102</a></span>&#160;<span class="preprocessor"></span><span class="preprocessor">#define GPR_SLICE_END_PTR(slice) \</span></div>
<div class="line"><a name="l00103"></a><span class="lineno"> 103</span>&#160;<span class="preprocessor"> GPR_SLICE_START_PTR(slice) + GPR_SLICE_LENGTH(slice)</span></div>
<div class="line"><a name="l00104"></a><span class="lineno"><a class="line" href="slice_8h.html#ad4fe3efa7a8938045ce79271d79f79ef"> 104</a></span>&#160;<span class="preprocessor"></span><span class="preprocessor">#define GPR_SLICE_IS_EMPTY(slice) (GPR_SLICE_LENGTH(slice) == 0)</span></div>
<div class="line"><a name="l00105"></a><span class="lineno"> 105</span>&#160;<span class="preprocessor"></span></div>
<div class="line"><a name="l00106"></a><span class="lineno"> 106</span>&#160;<span class="comment">/* Increment the refcount of s. Requires slice is initialized.</span></div>
<div class="line"><a name="l00107"></a><span class="lineno"> 107</span>&#160;<span class="comment"> Returns s. */</span></div>
<div class="line"><a name="l00108"></a><span class="lineno"> 108</span>&#160;<a class="code" href="structgpr__slice.html">gpr_slice</a> <a class="code" href="slice_8h.html#ad28a2bcca348046cbe660a44180e75ca">gpr_slice_ref</a>(<a class="code" href="structgpr__slice.html">gpr_slice</a> s);</div>
<div class="line"><a name="l00109"></a><span class="lineno"> 109</span>&#160;</div>
<div class="line"><a name="l00110"></a><span class="lineno"> 110</span>&#160;<span class="comment">/* Decrement the ref count of s. If the ref count of s reaches zero, all</span></div>
<div class="line"><a name="l00111"></a><span class="lineno"> 111</span>&#160;<span class="comment"> slices sharing the ref count are destroyed, and considered no longer</span></div>
<div class="line"><a name="l00112"></a><span class="lineno"> 112</span>&#160;<span class="comment"> initialized. If s is ultimately derived from a call to gpr_slice_new(start,</span></div>
<div class="line"><a name="l00113"></a><span class="lineno"> 113</span>&#160;<span class="comment"> len, dest) where dest!=NULL , then (*dest)(start) is called, else if s is</span></div>
<div class="line"><a name="l00114"></a><span class="lineno"> 114</span>&#160;<span class="comment"> ultimately derived from a call to gpr_slice_new_with_len(start, len, dest)</span></div>
<div class="line"><a name="l00115"></a><span class="lineno"> 115</span>&#160;<span class="comment"> where dest!=NULL , then (*dest)(start, len). Requires s initialized. */</span></div>
<div class="line"><a name="l00116"></a><span class="lineno"> 116</span>&#160;<span class="keywordtype">void</span> <a class="code" href="slice_8h.html#a024429b0dd15e43a09e48e35ca8810d7">gpr_slice_unref</a>(<a class="code" href="structgpr__slice.html">gpr_slice</a> s);</div>
<div class="line"><a name="l00117"></a><span class="lineno"> 117</span>&#160;</div>
<div class="line"><a name="l00118"></a><span class="lineno"> 118</span>&#160;<span class="comment">/* Create a slice pointing at some data. Calls malloc to allocate a refcount</span></div>
<div class="line"><a name="l00119"></a><span class="lineno"> 119</span>&#160;<span class="comment"> for the object, and arranges that destroy will be called with the pointer</span></div>
<div class="line"><a name="l00120"></a><span class="lineno"> 120</span>&#160;<span class="comment"> passed in at destruction. */</span></div>
<div class="line"><a name="l00121"></a><span class="lineno"> 121</span>&#160;<a class="code" href="structgpr__slice.html">gpr_slice</a> <a class="code" href="slice_8h.html#aea43587a11bfe2e06fb8532035229bb2">gpr_slice_new</a>(<span class="keywordtype">void</span> *p, <span class="keywordtype">size_t</span> len, <span class="keywordtype">void</span> (*destroy)(<span class="keywordtype">void</span> *));</div>
<div class="line"><a name="l00122"></a><span class="lineno"> 122</span>&#160;</div>
<div class="line"><a name="l00123"></a><span class="lineno"> 123</span>&#160;<span class="comment">/* Equivalent to gpr_slice_new, but with a two argument destroy function that</span></div>
<div class="line"><a name="l00124"></a><span class="lineno"> 124</span>&#160;<span class="comment"> also takes the slice length. */</span></div>
<div class="line"><a name="l00125"></a><span class="lineno"> 125</span>&#160;<a class="code" href="structgpr__slice.html">gpr_slice</a> <a class="code" href="slice_8h.html#affd1fef2ffaca67e0b2e7b60923da812">gpr_slice_new_with_len</a>(<span class="keywordtype">void</span> *p, <span class="keywordtype">size_t</span> len,</div>
<div class="line"><a name="l00126"></a><span class="lineno"> 126</span>&#160; <span class="keywordtype">void</span> (*destroy)(<span class="keywordtype">void</span> *, <span class="keywordtype">size_t</span>));</div>
<div class="line"><a name="l00127"></a><span class="lineno"> 127</span>&#160;</div>
<div class="line"><a name="l00128"></a><span class="lineno"> 128</span>&#160;<span class="comment">/* Equivalent to gpr_slice_new(malloc(len), len, free), but saves one malloc()</span></div>
<div class="line"><a name="l00129"></a><span class="lineno"> 129</span>&#160;<span class="comment"> call.</span></div>
<div class="line"><a name="l00130"></a><span class="lineno"> 130</span>&#160;<span class="comment"> Aborts if malloc() fails. */</span></div>
<div class="line"><a name="l00131"></a><span class="lineno"> 131</span>&#160;<a class="code" href="structgpr__slice.html">gpr_slice</a> <a class="code" href="slice_8h.html#ab57463740ccedc00b50721dce66ebd7b">gpr_slice_malloc</a>(<span class="keywordtype">size_t</span> length);</div>
<div class="line"><a name="l00132"></a><span class="lineno"> 132</span>&#160;</div>
<div class="line"><a name="l00133"></a><span class="lineno"> 133</span>&#160;<span class="comment">/* Create a slice by copying a string.</span></div>
<div class="line"><a name="l00134"></a><span class="lineno"> 134</span>&#160;<span class="comment"> Does not preserve null terminators.</span></div>
<div class="line"><a name="l00135"></a><span class="lineno"> 135</span>&#160;<span class="comment"> Equivalent to:</span></div>
<div class="line"><a name="l00136"></a><span class="lineno"> 136</span>&#160;<span class="comment"> size_t len = strlen(source);</span></div>
<div class="line"><a name="l00137"></a><span class="lineno"> 137</span>&#160;<span class="comment"> gpr_slice slice = gpr_slice_malloc(len);</span></div>
<div class="line"><a name="l00138"></a><span class="lineno"> 138</span>&#160;<span class="comment"> memcpy(slice-&gt;data, source, len); */</span></div>
<div class="line"><a name="l00139"></a><span class="lineno"> 139</span>&#160;<a class="code" href="structgpr__slice.html">gpr_slice</a> <a class="code" href="slice_8h.html#adf4df32e55b1b09d3f11c39447dcc68b">gpr_slice_from_copied_string</a>(<span class="keyword">const</span> <span class="keywordtype">char</span> *source);</div>
<div class="line"><a name="l00140"></a><span class="lineno"> 140</span>&#160;</div>
<div class="line"><a name="l00141"></a><span class="lineno"> 141</span>&#160;<span class="comment">/* Create a slice by copying a buffer.</span></div>
<div class="line"><a name="l00142"></a><span class="lineno"> 142</span>&#160;<span class="comment"> Equivalent to:</span></div>
<div class="line"><a name="l00143"></a><span class="lineno"> 143</span>&#160;<span class="comment"> gpr_slice slice = gpr_slice_malloc(len);</span></div>
<div class="line"><a name="l00144"></a><span class="lineno"> 144</span>&#160;<span class="comment"> memcpy(slice-&gt;data, source, len); */</span></div>
<div class="line"><a name="l00145"></a><span class="lineno"> 145</span>&#160;<a class="code" href="structgpr__slice.html">gpr_slice</a> <a class="code" href="slice_8h.html#a83e8110a7a98132963f01eb9c7f7418e">gpr_slice_from_copied_buffer</a>(<span class="keyword">const</span> <span class="keywordtype">char</span> *source, <span class="keywordtype">size_t</span> len);</div>
<div class="line"><a name="l00146"></a><span class="lineno"> 146</span>&#160;</div>
<div class="line"><a name="l00147"></a><span class="lineno"> 147</span>&#160;<span class="comment">/* Return a result slice derived from s, which shares a ref count with s, where</span></div>
<div class="line"><a name="l00148"></a><span class="lineno"> 148</span>&#160;<span class="comment"> result.data==s.data+begin, and result.length==end-begin.</span></div>
<div class="line"><a name="l00149"></a><span class="lineno"> 149</span>&#160;<span class="comment"> The ref count of s is increased by one.</span></div>
<div class="line"><a name="l00150"></a><span class="lineno"> 150</span>&#160;<span class="comment"> Requires s initialized, begin &lt;= end, begin &lt;= s.length, and</span></div>
<div class="line"><a name="l00151"></a><span class="lineno"> 151</span>&#160;<span class="comment"> end &lt;= source-&gt;length. */</span></div>
<div class="line"><a name="l00152"></a><span class="lineno"> 152</span>&#160;<a class="code" href="structgpr__slice.html">gpr_slice</a> <a class="code" href="slice_8h.html#ac9d4e6e264e22c6c6d3748f522da91eb">gpr_slice_sub</a>(<a class="code" href="structgpr__slice.html">gpr_slice</a> s, <span class="keywordtype">size_t</span> begin, <span class="keywordtype">size_t</span> end);</div>
<div class="line"><a name="l00153"></a><span class="lineno"> 153</span>&#160;</div>
<div class="line"><a name="l00154"></a><span class="lineno"> 154</span>&#160;<span class="comment">/* The same as gpr_slice_sub, but without altering the ref count */</span></div>
<div class="line"><a name="l00155"></a><span class="lineno"> 155</span>&#160;<a class="code" href="structgpr__slice.html">gpr_slice</a> <a class="code" href="slice_8h.html#accf08ddad530a5f1cca82c834dc70965">gpr_slice_sub_no_ref</a>(<a class="code" href="structgpr__slice.html">gpr_slice</a> s, <span class="keywordtype">size_t</span> begin, <span class="keywordtype">size_t</span> end);</div>
<div class="line"><a name="l00156"></a><span class="lineno"> 156</span>&#160;</div>
<div class="line"><a name="l00157"></a><span class="lineno"> 157</span>&#160;<span class="comment">/* Splits s into two: modifies s to be s[0:split], and returns a new slice,</span></div>
<div class="line"><a name="l00158"></a><span class="lineno"> 158</span>&#160;<span class="comment"> sharing a refcount with s, that contains s[split:s.length].</span></div>
<div class="line"><a name="l00159"></a><span class="lineno"> 159</span>&#160;<span class="comment"> Requires s intialized, split &lt;= s.length */</span></div>
<div class="line"><a name="l00160"></a><span class="lineno"> 160</span>&#160;<a class="code" href="structgpr__slice.html">gpr_slice</a> <a class="code" href="slice_8h.html#a51315f2a9217a1d42711f48bfec9d39e">gpr_slice_split_tail</a>(<a class="code" href="structgpr__slice.html">gpr_slice</a> *s, <span class="keywordtype">size_t</span> split);</div>
<div class="line"><a name="l00161"></a><span class="lineno"> 161</span>&#160;</div>
<div class="line"><a name="l00162"></a><span class="lineno"> 162</span>&#160;<span class="comment">/* Splits s into two: modifies s to be s[split:s.length], and returns a new</span></div>
<div class="line"><a name="l00163"></a><span class="lineno"> 163</span>&#160;<span class="comment"> slice, sharing a refcount with s, that contains s[0:split].</span></div>
<div class="line"><a name="l00164"></a><span class="lineno"> 164</span>&#160;<span class="comment"> Requires s intialized, split &lt;= s.length */</span></div>
<div class="line"><a name="l00165"></a><span class="lineno"> 165</span>&#160;<a class="code" href="structgpr__slice.html">gpr_slice</a> <a class="code" href="slice_8h.html#a842ea6b4a9ab4d0d3becd6fda03bbc24">gpr_slice_split_head</a>(<a class="code" href="structgpr__slice.html">gpr_slice</a> *s, <span class="keywordtype">size_t</span> split);</div>
<div class="line"><a name="l00166"></a><span class="lineno"> 166</span>&#160;</div>
<div class="line"><a name="l00167"></a><span class="lineno"> 167</span>&#160;<a class="code" href="structgpr__slice.html">gpr_slice</a> <a class="code" href="slice_8h.html#a1a8906400c956fb8c508326a072b0662">gpr_empty_slice</a>(<span class="keywordtype">void</span>);</div>
<div class="line"><a name="l00168"></a><span class="lineno"> 168</span>&#160;</div>
<div class="line"><a name="l00169"></a><span class="lineno"> 169</span>&#160;<span class="comment">/* Returns &lt;0 if a &lt; b, ==0 if a == b, &gt;0 if a &gt; b</span></div>
<div class="line"><a name="l00170"></a><span class="lineno"> 170</span>&#160;<span class="comment"> The order is arbitrary, and is not guaranteed to be stable across different</span></div>
<div class="line"><a name="l00171"></a><span class="lineno"> 171</span>&#160;<span class="comment"> versions of the API. */</span></div>
<div class="line"><a name="l00172"></a><span class="lineno"> 172</span>&#160;<span class="keywordtype">int</span> <a class="code" href="slice_8h.html#add3c8736c46bea7517991f178c82ba3c">gpr_slice_cmp</a>(<a class="code" href="structgpr__slice.html">gpr_slice</a> a, <a class="code" href="structgpr__slice.html">gpr_slice</a> b);</div>
<div class="line"><a name="l00173"></a><span class="lineno"> 173</span>&#160;<span class="keywordtype">int</span> <a class="code" href="slice_8h.html#aef752203db50c932010a74c6845872c2">gpr_slice_str_cmp</a>(<a class="code" href="structgpr__slice.html">gpr_slice</a> a, <span class="keyword">const</span> <span class="keywordtype">char</span> *b);</div>
<div class="line"><a name="l00174"></a><span class="lineno"> 174</span>&#160;</div>
<div class="line"><a name="l00175"></a><span class="lineno"> 175</span>&#160;<span class="preprocessor">#ifdef __cplusplus</span></div>
<div class="line"><a name="l00176"></a><span class="lineno"> 176</span>&#160;<span class="preprocessor"></span>}</div>
<div class="line"><a name="l00177"></a><span class="lineno"> 177</span>&#160;<span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00178"></a><span class="lineno"> 178</span>&#160;<span class="preprocessor"></span></div>
<div class="line"><a name="l00179"></a><span class="lineno"> 179</span>&#160;<span class="preprocessor">#endif </span><span class="comment">/* GRPC_SUPPORT_SLICE_H */</span><span class="preprocessor"></span></div>
<div class="ttc" id="slice_8h_html_ac9d4e6e264e22c6c6d3748f522da91eb"><div class="ttname"><a href="slice_8h.html#ac9d4e6e264e22c6c6d3748f522da91eb">gpr_slice_sub</a></div><div class="ttdeci">gpr_slice gpr_slice_sub(gpr_slice s, size_t begin, size_t end)</div><div class="ttdef"><b>Definition:</b> slice.c:227</div></div>
<div class="ttc" id="port__platform_8h_html_aeeb41e29e7c7a916a4e0fb6cfb9f92e0"><div class="ttname"><a href="port__platform_8h.html#aeeb41e29e7c7a916a4e0fb6cfb9f92e0">gpr_uint8</a></div><div class="ttdeci">uint8_t gpr_uint8</div><div class="ttdef"><b>Definition:</b> port_platform.h:307</div></div>
<div class="ttc" id="slice_8h_html_affd1fef2ffaca67e0b2e7b60923da812"><div class="ttname"><a href="slice_8h.html#affd1fef2ffaca67e0b2e7b60923da812">gpr_slice_new_with_len</a></div><div class="ttdeci">gpr_slice gpr_slice_new_with_len(void *p, size_t len, void(*destroy)(void *, size_t))</div><div class="ttdef"><b>Definition:</b> slice.c:120</div></div>
<div class="ttc" id="slice_8h_html_a842ea6b4a9ab4d0d3becd6fda03bbc24"><div class="ttname"><a href="slice_8h.html#a842ea6b4a9ab4d0d3becd6fda03bbc24">gpr_slice_split_head</a></div><div class="ttdeci">gpr_slice gpr_slice_split_head(gpr_slice *s, size_t split)</div><div class="ttdef"><b>Definition:</b> slice.c:278</div></div>
<div class="ttc" id="structgpr__slice_html_a50bbfa04c0c8f5db1190cbc86bdfd102"><div class="ttname"><a href="structgpr__slice.html#a50bbfa04c0c8f5db1190cbc86bdfd102">gpr_slice::refcounted</a></div><div class="ttdeci">struct gpr_slice::@27::@28 refcounted</div></div>
<div class="ttc" id="structgpr__slice_html_a8867b2d660a87061534be9c8098d4fa5"><div class="ttname"><a href="structgpr__slice.html#a8867b2d660a87061534be9c8098d4fa5">gpr_slice::length</a></div><div class="ttdeci">size_t length</div><div class="ttdef"><b>Definition:</b> slice.h:84</div></div>
<div class="ttc" id="structgpr__slice_html_a122218a8a00205225f56ee71ade6e8da"><div class="ttname"><a href="structgpr__slice.html#a122218a8a00205225f56ee71ade6e8da">gpr_slice::data</a></div><div class="ttdeci">union gpr_slice::@27 data</div></div>
<div class="ttc" id="structgpr__slice_html_a16646e1a137851f2b031cf2c431b2864"><div class="ttname"><a href="structgpr__slice.html#a16646e1a137851f2b031cf2c431b2864">gpr_slice::bytes</a></div><div class="ttdeci">gpr_uint8 * bytes</div><div class="ttdef"><b>Definition:</b> slice.h:83</div></div>
<div class="ttc" id="slice_8h_html_adf4df32e55b1b09d3f11c39447dcc68b"><div class="ttname"><a href="slice_8h.html#adf4df32e55b1b09d3f11c39447dcc68b">gpr_slice_from_copied_string</a></div><div class="ttdeci">gpr_slice gpr_slice_from_copied_string(const char *source)</div><div class="ttdef"><b>Definition:</b> slice.c:144</div></div>
<div class="ttc" id="slice_8h_html_a1a8906400c956fb8c508326a072b0662"><div class="ttname"><a href="slice_8h.html#a1a8906400c956fb8c508326a072b0662">gpr_empty_slice</a></div><div class="ttdeci">gpr_slice gpr_empty_slice(void)</div><div class="ttdef"><b>Definition:</b> slice.c:40</div></div>
<div class="ttc" id="slice_8h_html_aef752203db50c932010a74c6845872c2"><div class="ttname"><a href="slice_8h.html#aef752203db50c932010a74c6845872c2">gpr_slice_str_cmp</a></div><div class="ttdeci">int gpr_slice_str_cmp(gpr_slice a, const char *b)</div><div class="ttdef"><b>Definition:</b> slice.c:322</div></div>
<div class="ttc" id="structgpr__slice_html_a1fd4cfd75079d6f30184f0340276eb28"><div class="ttname"><a href="structgpr__slice.html#a1fd4cfd75079d6f30184f0340276eb28">gpr_slice::inlined</a></div><div class="ttdeci">struct gpr_slice::@27::@29 inlined</div></div>
<div class="ttc" id="slice_8h_html_a83e8110a7a98132963f01eb9c7f7418e"><div class="ttname"><a href="slice_8h.html#a83e8110a7a98132963f01eb9c7f7418e">gpr_slice_from_copied_buffer</a></div><div class="ttdeci">gpr_slice gpr_slice_from_copied_buffer(const char *source, size_t len)</div><div class="ttdef"><b>Definition:</b> slice.c:138</div></div>
<div class="ttc" id="slice_8h_html_ad28a2bcca348046cbe660a44180e75ca"><div class="ttname"><a href="slice_8h.html#ad28a2bcca348046cbe660a44180e75ca">gpr_slice_ref</a></div><div class="ttdeci">gpr_slice gpr_slice_ref(gpr_slice s)</div><div class="ttdef"><b>Definition:</b> slice.c:47</div></div>
<div class="ttc" id="slice_8h_html_add3c8736c46bea7517991f178c82ba3c"><div class="ttname"><a href="slice_8h.html#add3c8736c46bea7517991f178c82ba3c">gpr_slice_cmp</a></div><div class="ttdeci">int gpr_slice_cmp(gpr_slice a, gpr_slice b)</div><div class="ttdef"><b>Definition:</b> slice.c:315</div></div>
<div class="ttc" id="slice_8h_html_aea43587a11bfe2e06fb8532035229bb2"><div class="ttname"><a href="slice_8h.html#aea43587a11bfe2e06fb8532035229bb2">gpr_slice_new</a></div><div class="ttdeci">gpr_slice gpr_slice_new(void *p, size_t len, void(*destroy)(void *))</div><div class="ttdef"><b>Definition:</b> slice.c:82</div></div>
<div class="ttc" id="structgpr__slice__refcount_html_ae31a3f84f0032dd388418eee26aa9c00"><div class="ttname"><a href="structgpr__slice__refcount.html#ae31a3f84f0032dd388418eee26aa9c00">gpr_slice_refcount::unref</a></div><div class="ttdeci">void(* unref)(void *)</div><div class="ttdef"><b>Definition:</b> slice.h:65</div></div>
<div class="ttc" id="structgpr__slice__refcount_html_abf3fba35fdc6a4cd2d47e5ca19107ed7"><div class="ttname"><a href="structgpr__slice__refcount.html#abf3fba35fdc6a4cd2d47e5ca19107ed7">gpr_slice_refcount::ref</a></div><div class="ttdeci">void(* ref)(void *)</div><div class="ttdef"><b>Definition:</b> slice.h:64</div></div>
<div class="ttc" id="structgpr__slice_html_a04d0bcc8331409fa3b3af29ee0b86a24"><div class="ttname"><a href="structgpr__slice.html#a04d0bcc8331409fa3b3af29ee0b86a24">gpr_slice::refcount</a></div><div class="ttdeci">struct gpr_slice_refcount * refcount</div><div class="ttdef"><b>Definition:</b> slice.h:80</div></div>
<div class="ttc" id="slice_8h_html_ab57463740ccedc00b50721dce66ebd7b"><div class="ttname"><a href="slice_8h.html#ab57463740ccedc00b50721dce66ebd7b">gpr_slice_malloc</a></div><div class="ttdeci">gpr_slice gpr_slice_malloc(size_t length)</div><div class="ttdef"><b>Definition:</b> slice.c:165</div></div>
<div class="ttc" id="slice_8h_html_a51315f2a9217a1d42711f48bfec9d39e"><div class="ttname"><a href="slice_8h.html#a51315f2a9217a1d42711f48bfec9d39e">gpr_slice_split_tail</a></div><div class="ttdeci">gpr_slice gpr_slice_split_tail(gpr_slice *s, size_t split)</div><div class="ttdef"><b>Definition:</b> slice.c:243</div></div>
<div class="ttc" id="sync_8h_html"><div class="ttname"><a href="sync_8h.html">sync.h</a></div></div>
<div class="ttc" id="slice_8h_html_a4063c3d8d4820472a4cf2655dd662a31"><div class="ttname"><a href="slice_8h.html#a4063c3d8d4820472a4cf2655dd662a31">GPR_SLICE_INLINED_SIZE</a></div><div class="ttdeci">#define GPR_SLICE_INLINED_SIZE</div><div class="ttdef"><b>Definition:</b> slice.h:68</div></div>
<div class="ttc" id="slice_8h_html_a024429b0dd15e43a09e48e35ca8810d7"><div class="ttname"><a href="slice_8h.html#a024429b0dd15e43a09e48e35ca8810d7">gpr_slice_unref</a></div><div class="ttdeci">void gpr_slice_unref(gpr_slice s)</div><div class="ttdef"><b>Definition:</b> slice.c:54</div></div>
<div class="ttc" id="structgpr__slice_html_acd3242f89b2999d12788e65337662cf3"><div class="ttname"><a href="structgpr__slice.html#acd3242f89b2999d12788e65337662cf3">gpr_slice::length</a></div><div class="ttdeci">gpr_uint8 length</div><div class="ttdef"><b>Definition:</b> slice.h:87</div></div>
<div class="ttc" id="structgpr__slice__refcount_html"><div class="ttname"><a href="structgpr__slice__refcount.html">gpr_slice_refcount</a></div><div class="ttdef"><b>Definition:</b> slice.h:63</div></div>
<div class="ttc" id="slice_8h_html_af8841873e741f6cf38b2192147ea4f3e"><div class="ttname"><a href="slice_8h.html#af8841873e741f6cf38b2192147ea4f3e">gpr_slice_refcount</a></div><div class="ttdeci">struct gpr_slice_refcount gpr_slice_refcount</div></div>
<div class="ttc" id="slice_8h_html_a91fe16db371db7c53d6e3adc90a6678c"><div class="ttname"><a href="slice_8h.html#a91fe16db371db7c53d6e3adc90a6678c">gpr_slice</a></div><div class="ttdeci">struct gpr_slice gpr_slice</div></div>
<div class="ttc" id="structgpr__slice_html"><div class="ttname"><a href="structgpr__slice.html">gpr_slice</a></div><div class="ttdef"><b>Definition:</b> slice.h:79</div></div>
<div class="ttc" id="slice_8h_html_accf08ddad530a5f1cca82c834dc70965"><div class="ttname"><a href="slice_8h.html#accf08ddad530a5f1cca82c834dc70965">gpr_slice_sub_no_ref</a></div><div class="ttdeci">gpr_slice gpr_slice_sub_no_ref(gpr_slice s, size_t begin, size_t end)</div><div class="ttdef"><b>Definition:</b> slice.c:202</div></div>
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