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openmpi/opal/mca/dl/base/dl_base_close.c
Jeff Squyres e81c070ef0 dl framework: new dynamic loader framework
Embedding libltdl without the use of Libtool bootstrapping has
proven... difficult.  Instead, create a new simple "dl" framework.  It
only provides 4 functions:

- open a DSO (very similar to lt_dlopenadvise())
- lookup a symbol in a previously-opened DSO (very similar to lt_dlsym())
- close a previously-opened DSO (very similar to lt_dlclose())
- iterate over all files in a directory (very similar to ld_dlforeachfile())

There will be follow-on commits with a simple dlopen-based component
(nowhere near as complete/functional as libltdl, but good enough for
Linux and OS X), and a libltdl-based component for all other
platforms.

The intent is that the dlopen-based component can be built by default
in almost all cases.  But if libltdl is available, that component will
be built.  End result: we still get DSO-based functionality by default
in (almost?) all cases.  Without embedding libltdl.  Which is what we
want.
2015-03-09 08:16:55 -07:00

26 строки
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C

/*
* Copyright (c) 2004-2010 The Trustees of Indiana University.
* All rights reserved.
* Copyright (c) 2015 Cisco Systems, Inc. All rights reserved.
* $COPYRIGHT$
*
* Additional copyrights may follow
*
* $HEADER$
*/
#include "opal_config.h"
#include "opal/mca/mca.h"
#include "opal/mca/base/base.h"
#include "opal/mca/dl/dl.h"
#include "opal/mca/dl/base/base.h"
int opal_dl_base_close(void)
{
/* Close all available modules that are open */
return mca_base_framework_components_close(&opal_dl_base_framework, NULL);
}