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| <a name="omp_005funset_005fnest_005flock-_002d_002d-Unset-nested-lock"></a> |
| <h3 class="section">2.37 <code>omp_unset_nest_lock</code> – Unset nested lock</h3> |
| <dl compact="compact"> |
| <dt><em>Description</em>:</dt> |
| <dd><p>A nested lock about to be unset must have been locked by <code>omp_set_nested_lock</code> |
| or <code>omp_test_nested_lock</code> before. In addition, the lock must be held by the |
| thread calling <code>omp_unset_nested_lock</code>. If the nesting count drops to zero, the |
| lock becomes unlocked. If one ore more threads attempted to set the lock before, |
| one of them is chosen to, again, set the lock to itself. |
| </p> |
| </dd> |
| <dt><em>C/C++</em>:</dt> |
| <dd><table> |
| <tr><td width="20%"><em>Prototype</em>:</td><td width="80%"><code>void omp_unset_nest_lock(omp_nest_lock_t *lock);</code></td></tr> |
| </table> |
| |
| </dd> |
| <dt><em>Fortran</em>:</dt> |
| <dd><table> |
| <tr><td width="20%"><em>Interface</em>:</td><td width="80%"><code>subroutine omp_unset_nest_lock(nvar)</code></td></tr> |
| <tr><td width="20%"></td><td width="80%"><code>integer(omp_nest_lock_kind), intent(inout) :: nvar</code></td></tr> |
| </table> |
| |
| </dd> |
| <dt><em>See also</em>:</dt> |
| <dd><p><a href="omp_005fset_005fnest_005flock.html#omp_005fset_005fnest_005flock">omp_set_nest_lock</a> |
| </p> |
| </dd> |
| <dt><em>Reference</em>:</dt> |
| <dd><p><a href="http://www.openmp.org/">OpenMP specification v4.0</a>, Section 3.3.4. |
| </p></dd> |
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