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<div class="textblock"><code>#include &lt;<a class="el" href="impl_2codegen_2port__platform_8h_source.html">grpc/impl/codegen/port_platform.h</a>&gt;</code><br />
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<p><a href="impl_2codegen_2atm_8h_source.html">Go to the source code of this file.</a></p>
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Functions</h2></td></tr>
<tr class="memitem:acd924aafc13347097cc06c74c8b5a68d"><td class="memItemLeft" align="right" valign="top"><a class="el" href="impl_2codegen_2atm__gcc__atomic_8h.html#a0a6314f31fcae0666a93961bed98af51">gpr_atm</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="impl_2codegen_2atm_8h.html#acd924aafc13347097cc06c74c8b5a68d">gpr_atm_no_barrier_clamped_add</a> (<a class="el" href="impl_2codegen_2atm__gcc__atomic_8h.html#a0a6314f31fcae0666a93961bed98af51">gpr_atm</a> *value, <a class="el" href="impl_2codegen_2atm__gcc__atomic_8h.html#a0a6314f31fcae0666a93961bed98af51">gpr_atm</a> delta, <a class="el" href="impl_2codegen_2atm__gcc__atomic_8h.html#a0a6314f31fcae0666a93961bed98af51">gpr_atm</a> min, <a class="el" href="impl_2codegen_2atm__gcc__atomic_8h.html#a0a6314f31fcae0666a93961bed98af51">gpr_atm</a> max)</td></tr>
<tr class="memdesc:acd924aafc13347097cc06c74c8b5a68d"><td class="mdescLeft">&#160;</td><td class="mdescRight">This interface provides atomic operations and barriers.  <a href="impl_2codegen_2atm_8h.html#acd924aafc13347097cc06c74c8b5a68d">More...</a><br /></td></tr>
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<h2 class="memtitle"><span class="permalink"><a href="#acd924aafc13347097cc06c74c8b5a68d">&#9670;&nbsp;</a></span>gpr_atm_no_barrier_clamped_add()</h2>

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          <td class="memname"><a class="el" href="impl_2codegen_2atm__gcc__atomic_8h.html#a0a6314f31fcae0666a93961bed98af51">gpr_atm</a> gpr_atm_no_barrier_clamped_add </td>
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          <td class="paramtype"><a class="el" href="impl_2codegen_2atm__gcc__atomic_8h.html#a0a6314f31fcae0666a93961bed98af51">gpr_atm</a> *&#160;</td>
          <td class="paramname"><em>value</em>, </td>
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          <td class="paramtype"><a class="el" href="impl_2codegen_2atm__gcc__atomic_8h.html#a0a6314f31fcae0666a93961bed98af51">gpr_atm</a>&#160;</td>
          <td class="paramname"><em>delta</em>, </td>
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          <td class="paramtype"><a class="el" href="impl_2codegen_2atm__gcc__atomic_8h.html#a0a6314f31fcae0666a93961bed98af51">gpr_atm</a>&#160;</td>
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          <td class="paramtype"><a class="el" href="impl_2codegen_2atm__gcc__atomic_8h.html#a0a6314f31fcae0666a93961bed98af51">gpr_atm</a>&#160;</td>
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<p>This interface provides atomic operations and barriers. </p>
<p>It is internal to gpr support code and should not be used outside it.</p>
<p>If an operation with acquire semantics precedes another memory access by the same thread, the operation will precede that other access as seen by other threads.</p>
<p>If an operation with release semantics follows another memory access by the same thread, the operation will follow that other access as seen by other threads.</p>
<p>Routines with "acq" or "full" in the name have acquire semantics. Routines with "rel" or "full" in the name have release semantics. Routines with "no_barrier" in the name have neither acquire not release semantics.</p>
<p>The routines may be implemented as macros.</p>
<p>Atomic operations act on an intergral_type gpr_atm that is guaranteed to be the same size as a pointer. typedef intptr_t gpr_atm;</p>
<p>A memory barrier, providing both acquire and release semantics, but not otherwise acting on memory. void <a class="el" href="impl_2codegen_2atm__gcc__sync_8h.html#a95f86e51ae9a479026bd237cb792193e">gpr_atm_full_barrier(void)</a>;</p>
<p>Atomically return *p, with acquire semantics. gpr_atm <a class="el" href="impl_2codegen_2atm__gcc__atomic_8h.html#a44607f95f7ee40eba592c7fe10960a06">gpr_atm_acq_load(gpr_atm *p)</a>; gpr_atm <a class="el" href="impl_2codegen_2atm__gcc__atomic_8h.html#aa647aa9c97294a6709bbf2ac401cd9a6">gpr_atm_no_barrier_load(gpr_atm *p)</a>;</p>
<p>Atomically set *p = value, with release semantics. void <a class="el" href="impl_2codegen_2atm__gcc__atomic_8h.html#a42e3982d45ae4cec439a12b8fcd618e9">gpr_atm_rel_store(gpr_atm *p, gpr_atm value)</a>;</p>
<p>Atomically add delta to *p, and return the old value of *p, with the barriers specified. gpr_atm <a class="el" href="impl_2codegen_2atm__gcc__sync_8h.html#ae337dc477a6a45ac3d91e41e8f3f2f8c">gpr_atm_no_barrier_fetch_add(gpr_atm *p, gpr_atm delta)</a>; gpr_atm <a class="el" href="impl_2codegen_2atm__gcc__sync_8h.html#abada8771b338845e4c6ef93c8392582c">gpr_atm_full_fetch_add(gpr_atm *p, gpr_atm delta)</a>;</p>
<p>Atomically, if *p==o, set *p=n and return non-zero otherwise return 0, with the barriers specified if the operation succeeds. int <a class="el" href="impl_2codegen_2atm__gcc__sync_8h.html#ad39536b08912ac4a0770655ed334d260">gpr_atm_no_barrier_cas(gpr_atm *p, gpr_atm o, gpr_atm n)</a>; int <a class="el" href="impl_2codegen_2atm__gcc__sync_8h.html#a1a90e5777158aaa53624822f1f87dd90">gpr_atm_acq_cas(gpr_atm *p, gpr_atm o, gpr_atm n)</a>; int <a class="el" href="impl_2codegen_2atm__gcc__sync_8h.html#ae7c3b215cda868ee9ee778822000c3f2">gpr_atm_rel_cas(gpr_atm *p, gpr_atm o, gpr_atm n)</a>; int <a class="el" href="impl_2codegen_2atm__gcc__sync_8h.html#a9d29f224b49d4de8bb2b0d7feae64fcb">gpr_atm_full_cas(gpr_atm *p, gpr_atm o, gpr_atm n)</a>;</p>
<p>Atomically, set *p=n and return the old value of *p gpr_atm <a class="el" href="impl_2codegen_2atm__gcc__atomic_8h.html#a724691b6d48f35bbd9f575c82fdfb526">gpr_atm_full_xchg(gpr_atm *p, gpr_atm n)</a>; Adds <em>delta</em> to <em>*value</em>, clamping the result to the range specified by <em>min</em> and <em>max</em>. Returns the new value. </p>

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