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/* -*- Mode: C; c-basic-offset:4 ; indent-tabs-mode:nil -*- */
/*
* Copyright (c) 2016 Los Alamos National Security, LLC. All rights
* reserved.
* $COPYRIGHT$
*
* Additional copyrights may follow
*
* $HEADER$
*/
#include "opal_config.h"
#include "opal/mca/patcher/base/base.h"
#include "opal/mca/patcher/base/static-components.h"
#include "opal/mca/patcher/patcher.h"
/*
* Local variables
*/
static mca_patcher_base_module_t empty_module;
/*
* Globals
*/
mca_patcher_base_module_t *opal_patcher = &empty_module;
int opal_patcher_base_select(void)
{
mca_patcher_base_module_t *best_module;
mca_patcher_base_component_t *best_component;
int rc, priority;
rc = mca_base_select("patcher", opal_patcher_base_framework.framework_output,
&opal_patcher_base_framework.framework_components,
(mca_base_module_t **) &best_module,
(mca_base_component_t **) &best_component, &priority);
if (OPAL_SUCCESS != rc) {
return rc;
}
OBJ_CONSTRUCT(&best_module->patch_list, opal_list_t);
OBJ_CONSTRUCT(&best_module->patch_list_mutex, opal_mutex_t);
if (best_module->patch_init) {
rc = best_module->patch_init();
if (OPAL_SUCCESS != rc) {
return rc;
}
}
opal_patcher = best_module;
return OPAL_SUCCESS;
}
int opal_patcher_base_restore_all(void)
{
mca_patcher_base_patch_t *patch, *patch_next;
if (opal_patcher == &empty_module) {
return OPAL_SUCCESS;
}
opal_mutex_lock(&opal_patcher->patch_list_mutex);
OPAL_LIST_FOREACH_SAFE_REV(patch, patch_next, &opal_patcher->patch_list, mca_patcher_base_patch_t) {
patch->patch_restore (patch);
opal_list_remove_item(&opal_patcher->patch_list, &patch->super);
OBJ_RELEASE(patch);
}
opal_mutex_unlock(&opal_patcher->patch_list_mutex);
return OPAL_SUCCESS;
}
static int opal_patcher_base_close(void)
{
if (opal_patcher == &empty_module) {
return OPAL_SUCCESS;
}
opal_patcher_base_restore_all();
OPAL_LIST_DESTRUCT(&opal_patcher->patch_list);
OBJ_DESTRUCT(&opal_patcher->patch_list_mutex);
if (opal_patcher->patch_fini) {
return opal_patcher->patch_fini();
}
return OPAL_SUCCESS;
}
/* Use default register/open functions */
MCA_BASE_FRAMEWORK_DECLARE(opal, patcher, "runtime code patching", NULL, NULL,
opal_patcher_base_close, mca_patcher_base_static_components, 0);
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