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| <h4 class="subsection">8.2.13 <code>_gfortran_caf_sync_images</code> — Barrier for selected images</h4> |
| <a name="index-Coarray_002c-_005fgfortran_005fcaf_005fsync_005fimages"></a> |
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| <dl compact="compact"> |
| <dt><em>Description</em>:</dt> |
| <dd><p>Synchronization between the specified images; the program only continues on a |
| given image after this function has been called on all images specified for |
| that image. Note that one image can wait for all other images in the current |
| team (e.g. via <code>sync images(*)</code>) while those only wait for that specific |
| image. Additionally, <code>sync images</code> it ensures that all pending data |
| transfers of previous segment have completed. |
| </p> |
| </dd> |
| <dt><em>Syntax</em>:</dt> |
| <dd><p><code>void _gfortran_caf_sync_images (int count, int images[], int *stat, |
| char *errmsg, int errmsg_len)</code> |
| </p> |
| </dd> |
| <dt><em>Arguments</em>:</dt> |
| <dd><table> |
| <tr><td width="15%"><var>count</var></td><td width="70%">the number of images which are provided in the next |
| argument. For a zero-sized array, the value is zero. For <code>sync |
| images (*)</code>, the value is <em>-1</em>.</td></tr> |
| <tr><td width="15%"><var>images</var></td><td width="70%">intent(in) an array with the images provided by the |
| user. If <var>count</var> is zero, a NULL pointer is passed.</td></tr> |
| <tr><td width="15%"><var>stat</var></td><td width="70%">intent(out) Stores the status STAT= and may be NULL.</td></tr> |
| <tr><td width="15%"><var>errmsg</var></td><td width="70%">intent(out) When an error occurs, this will be set to |
| an error message; may be NULL</td></tr> |
| <tr><td width="15%"><var>errmsg_len</var></td><td width="70%">the buffer size of errmsg.</td></tr> |
| </table> |
| </dd> |
| </dl> |
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