| <html>
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| <head>
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| <title>shmem_long_wait_until</title>
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| </head>
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| <h2 id="top">shmem_long_wait_until</h2>
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| <h4>Purpose</h4>
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| <p>Waits for a variable on the local processing element (PE) to change.
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| </p>
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| <h4>C syntax</h4>
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| <pre>
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| #include <shmem.h>
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| void shmem_long_wait_until(long *var, int cond, long value);
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| </pre>
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| <h4>Parameters</h4>
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| <dl>
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| <dt class="bold">INPUT</dt>
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| <dd>
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| </dd>
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| <dt class="bold ">ivar</dt>
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| <dd>A remotely accessible integer variable that is being updated by a remote PE.
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| </dd>
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| <dt class="bold ">cond</dt>
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| <dd>The compare operator that compares var with value. The following are the supported cond values:
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| <p> SHMEM_CMP_EQ Equal </p>
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| <p> SHMEM_CMP_NE Not equal</p>
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| <p> SHMEM_CMP_GT Greater then</p>
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| <p> SHMEM_CMP_LE Less then or equal</p>
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| <p> SHMEM_CMP_LT Less then operator</p>
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| <p> SHMEM_CMP_GE Greater then or equal.</p>
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| </dd>
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| <dt class="bold ">value</dt>
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| <dd>The right operand of the compare operator cond.
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| The left one is the value pointed by var.
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| </dd>
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| </dl>
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| <h4>Description</h4>
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| <div class="ledi">
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| <p>This function is used for point-to-point synchronization. It suspends the execution of the calling PE until the value of the symmetric variable var is changed</p>
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| <p>The function shmem_long_wait_until() blocks the calling PE until some remote PE
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| changes the long variable var to satisfy the condition implied by comp and val.</p>
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| <h4>C examples</h4>
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| <pre>
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| </pre>
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| <h4>Related information</h4>
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| <p>Subroutines: shmem_put
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| </p>
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| <hr><a href="apiIndex.html">OpenSHMEM API Index</a> |
| </html> |
