| <h2>The <code>upc_lock_t</code> type</h2> |
| |
| <h4>Synopsis</h4> |
| <p>The type declared is |
| <pre> |
| upc_lock_t |
| </pre> |
| <p> |
| <h4>Description</h4> |
| <p> |
| The type <code>upc_lock_t </code> is an opaque UPC type. <code>upc_lock_t </code> is a shared |
| datatype with incomplete type (as defined in [ISO/IEC00 Sec 6.2.5]). |
| Objects |
| of type <code>upc_lock_t </code> may therefore only be manipulated through pointers. |
| Such objects have two states called locked and unlocked. |
| <p>Two pointers to that reference the same lock object will compare as equal. |
| The results of applying upc_phaseof(), upc_threadof(), and upc_addrfield() |
| to such pointers are undefined. |
| |
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| <p>  |
| <p>  |
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