| <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> |
| <html> |
| <!-- Copyright (C) 1999-2015 Free Software Foundation, Inc. |
| |
| Permission is granted to copy, distribute and/or modify this document |
| under the terms of the GNU Free Documentation License, Version 1.3 or |
| any later version published by the Free Software Foundation; with the |
| Invariant Sections being "Funding Free Software", the Front-Cover |
| Texts being (a) (see below), and with the Back-Cover Texts being (b) |
| (see below). A copy of the license is included in the section entitled |
| "GNU Free Documentation License". |
| |
| (a) The FSF's Front-Cover Text is: |
| |
| A GNU Manual |
| |
| (b) The FSF's Back-Cover Text is: |
| |
| You have freedom to copy and modify this GNU Manual, like GNU |
| software. Copies published by the Free Software Foundation raise |
| funds for GNU development. --> |
| <!-- Created by GNU Texinfo 5.2, http://www.gnu.org/software/texinfo/ --> |
| <head> |
| <title>The GNU Fortran Compiler: _gfortran_caf_send</title> |
| |
| <meta name="description" content="The GNU Fortran Compiler: _gfortran_caf_send"> |
| <meta name="keywords" content="The GNU Fortran Compiler: _gfortran_caf_send"> |
| <meta name="resource-type" content="document"> |
| <meta name="distribution" content="global"> |
| <meta name="Generator" content="makeinfo"> |
| <meta http-equiv="Content-Type" content="text/html; charset=utf-8"> |
| <link href="index.html#Top" rel="start" title="Top"> |
| <link href="Option-Index.html#Option-Index" rel="index" title="Option Index"> |
| <link href="index.html#SEC_Contents" rel="contents" title="Table of Contents"> |
| <link href="Function-ABI-Documentation.html#Function-ABI-Documentation" rel="up" title="Function ABI Documentation"> |
| <link href="_005fgfortran_005fcaf_005fget.html#g_t_005fgfortran_005fcaf_005fget" rel="next" title="_gfortran_caf_get"> |
| <link href="_005fgfortran_005fcaf_005fderegister.html#g_t_005fgfortran_005fcaf_005fderegister" rel="prev" title="_gfortran_caf_deregister"> |
| <style type="text/css"> |
| <!-- |
| a.summary-letter {text-decoration: none} |
| blockquote.smallquotation {font-size: smaller} |
| div.display {margin-left: 3.2em} |
| div.example {margin-left: 3.2em} |
| div.indentedblock {margin-left: 3.2em} |
| div.lisp {margin-left: 3.2em} |
| div.smalldisplay {margin-left: 3.2em} |
| div.smallexample {margin-left: 3.2em} |
| div.smallindentedblock {margin-left: 3.2em; font-size: smaller} |
| div.smalllisp {margin-left: 3.2em} |
| kbd {font-style:oblique} |
| pre.display {font-family: inherit} |
| pre.format {font-family: inherit} |
| pre.menu-comment {font-family: serif} |
| pre.menu-preformatted {font-family: serif} |
| pre.smalldisplay {font-family: inherit; font-size: smaller} |
| pre.smallexample {font-size: smaller} |
| pre.smallformat {font-family: inherit; font-size: smaller} |
| pre.smalllisp {font-size: smaller} |
| span.nocodebreak {white-space:nowrap} |
| span.nolinebreak {white-space:nowrap} |
| span.roman {font-family:serif; font-weight:normal} |
| span.sansserif {font-family:sans-serif; font-weight:normal} |
| ul.no-bullet {list-style: none} |
| --> |
| </style> |
| |
| |
| </head> |
| |
| <body lang="en" bgcolor="#FFFFFF" text="#000000" link="#0000FF" vlink="#800080" alink="#FF0000"> |
| <a name="g_t_005fgfortran_005fcaf_005fsend"></a> |
| <div class="header"> |
| <p> |
| Next: <a href="_005fgfortran_005fcaf_005fget.html#g_t_005fgfortran_005fcaf_005fget" accesskey="n" rel="next">_gfortran_caf_get</a>, Previous: <a href="_005fgfortran_005fcaf_005fderegister.html#g_t_005fgfortran_005fcaf_005fderegister" accesskey="p" rel="prev">_gfortran_caf_deregister</a>, Up: <a href="Function-ABI-Documentation.html#Function-ABI-Documentation" accesskey="u" rel="up">Function ABI Documentation</a> [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Option-Index.html#Option-Index" title="Index" rel="index">Index</a>]</p> |
| </div> |
| <hr> |
| <a name="g_t_005fgfortran_005fcaf_005fsend-_002d_002d_002d-Sending-data-from-a-local-image-to-a-remote-image"></a> |
| <h4 class="subsection">8.2.7 <code>_gfortran_caf_send</code> — Sending data from a local image to a remote image</h4> |
| <a name="index-Coarray_002c-_005fgfortran_005fcaf_005fsend"></a> |
| |
| <dl compact="compact"> |
| <dt><em>Description</em>:</dt> |
| <dd><p>Called to send a scalar, an array section or whole array from a local |
| to a remote image identified by the image_index. |
| </p> |
| </dd> |
| <dt><em>Syntax</em>:</dt> |
| <dd><p><code>void _gfortran_caf_send (caf_token_t token, size_t offset, |
| int image_index, gfc_descriptor_t *dest, caf_vector_t *dst_vector, |
| gfc_descriptor_t *src, int dst_kind, int src_kind, bool may_require_tmp)</code> |
| </p> |
| </dd> |
| <dt><em>Arguments</em>:</dt> |
| <dd><table> |
| <tr><td width="15%"><var>token</var></td><td width="70%">intent(in) An opaque pointer identifying the coarray.</td></tr> |
| <tr><td width="15%"><var>offset</var></td><td width="70%">By which amount of bytes the actual data is shifted |
| compared to the base address of the coarray.</td></tr> |
| <tr><td width="15%"><var>image_index</var></td><td width="70%">The ID of the remote image; must be a positive |
| number.</td></tr> |
| <tr><td width="15%"><var>dest</var></td><td width="70%">intent(in) Array descriptor for the remote image for the |
| bounds and the size. The base_addr shall not be accessed.</td></tr> |
| <tr><td width="15%"><var>dst_vector</var></td><td width="70%">intent(int) If not NULL, it contains the vector |
| subscript of the destination array; the values are relative to the dimension |
| triplet of the dest argument.</td></tr> |
| <tr><td width="15%"><var>src</var></td><td width="70%">intent(in) Array descriptor of the local array to be |
| transferred to the remote image</td></tr> |
| <tr><td width="15%"><var>dst_kind</var></td><td width="70%">Kind of the destination argument</td></tr> |
| <tr><td width="15%"><var>src_kind</var></td><td width="70%">Kind of the source argument</td></tr> |
| <tr><td width="15%"><var>may_require_tmp</var></td><td width="70%">The variable is false it is known at compile |
| time that the <var>dest</var> and <var>src</var> either cannot overlap or overlap (fully |
| or partially) such that walking <var>src</var> and <var>dest</var> in element wise |
| element order (honoring the stride value) will not lead to wrong results. |
| Otherwise, the value is true.</td></tr> |
| </table> |
| |
| </dd> |
| <dt><em>NOTES</em></dt> |
| <dd><p>It is permitted to have image_id equal the current image; the memory of the |
| send-to and the send-from might (partially) overlap in that case. The |
| implementation has to take care that it handles this case, e.g. using |
| <code>memmove</code> which handles (partially) overlapping memory. If |
| <var>may_require_tmp</var> is true, the library might additionally create a |
| temporary variable, unless additional checks show that this is not required |
| (e.g. because walking backward is possible or because both arrays are |
| contiguous and <code>memmove</code> takes care of overlap issues). |
| </p> |
| <p>Note that the assignment of a scalar to an array is permitted. In addition, |
| the library has to handle numeric-type conversion and for strings, padding |
| and different character kinds. |
| </p></dd> |
| </dl> |
| |
| |
| <hr> |
| <div class="header"> |
| <p> |
| Next: <a href="_005fgfortran_005fcaf_005fget.html#g_t_005fgfortran_005fcaf_005fget" accesskey="n" rel="next">_gfortran_caf_get</a>, Previous: <a href="_005fgfortran_005fcaf_005fderegister.html#g_t_005fgfortran_005fcaf_005fderegister" accesskey="p" rel="prev">_gfortran_caf_deregister</a>, Up: <a href="Function-ABI-Documentation.html#Function-ABI-Documentation" accesskey="u" rel="up">Function ABI Documentation</a> [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Option-Index.html#Option-Index" title="Index" rel="index">Index</a>]</p> |
| </div> |
| |
| |
| |
| </body> |
| </html> |