1
1
openmpi/ompi/mca/io/base/io_base_delete.c
Nathan Hjelm b68d66bb9b MCA: Add the project/project version to the MCA base component
This commit adds support for project_framework_component_* parameter
matching. This is the first step in allowing the same framework name
in multiple projects. This change also bumps the MCA component version
to 2.1.0.

All master frameworks have been updated to use the new component
versioning macro. An mca.h has been added to each project to add a
project specific versioning macro of the form
PROJECT_MCA_VERSION_2_1_0.

Signed-off-by: Nathan Hjelm <hjelmn@me.com>
2015-03-27 10:59:04 -06:00

377 строки
11 KiB
C

/*
* Copyright (c) 2004-2005 The Trustees of Indiana University and Indiana
* University Research and Technology
* Corporation. All rights reserved.
* Copyright (c) 2004-2005 The University of Tennessee and The University
* of Tennessee Research Foundation. All rights
* reserved.
* Copyright (c) 2004-2005 High Performance Computing Center Stuttgart,
* University of Stuttgart. All rights reserved.
* Copyright (c) 2004-2005 The Regents of the University of California.
* All rights reserved.
* Copyright (c) 2008 Sun Microsystems, Inc. All rights reserved.
* $COPYRIGHT$
*
* Additional copyrights may follow
*
* $HEADER$
*/
#include "ompi_config.h"
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include "mpi.h"
#include "opal/class/opal_list.h"
#include "opal/util/argv.h"
#include "opal/util/output.h"
#include "ompi/mca/mca.h"
#include "opal/mca/base/base.h"
#include "ompi/mca/io/io.h"
#include "ompi/mca/io/base/base.h"
/*
* Local types
*/
struct avail_io_t {
opal_list_item_t super;
mca_io_base_version_t ai_version;
int ai_priority;
mca_io_base_components_t ai_component;
struct mca_io_base_delete_t *ai_private_data;
};
typedef struct avail_io_t avail_io_t;
/*
* Local functions
*/
static opal_list_t *check_components(opal_list_t *components,
char *filename, struct ompi_info_t *info,
char **names, int num_names);
static avail_io_t *check_one_component(const mca_base_component_t *component,
char *filename, struct ompi_info_t *info);
static avail_io_t *query(const mca_base_component_t *component,
char *filename, struct ompi_info_t *info);
static avail_io_t *query_2_0_0(const mca_io_base_component_2_0_0_t *io_component,
char *filename, struct ompi_info_t *info);
static void unquery(avail_io_t *avail, char *filename, struct ompi_info_t *info);
static int delete_file(avail_io_t *avail, char *filename, struct ompi_info_t *info);
/*
* Stuff for the OBJ interface
*/
static OBJ_CLASS_INSTANCE(avail_io_t, opal_list_item_t, NULL, NULL);
/*
*/
int mca_io_base_delete(char *filename, struct ompi_info_t *info)
{
int err;
opal_list_t *selectable;
opal_list_item_t *item;
avail_io_t *avail, selected;
/* Announce */
opal_output_verbose(10, ompi_io_base_framework.framework_output,
"io:base:delete: deleting file: %s",
filename);
/* See if a set of component was requested by the MCA parameter.
Don't check for error. */
/* Compute the intersection of all of my available components with
the components from all the other processes in this file */
/* JMS CONTINUE HERE */
/* See if there were any listed in the MCA parameter; parse them
and check them all */
err = OMPI_ERROR;
opal_output_verbose(10, ompi_io_base_framework.framework_output,
"io:base:delete: Checking all available modules");
selectable = check_components(&ompi_io_base_framework.framework_components,
filename, info, NULL, 0);
/* Upon return from the above, the modules list will contain the
list of modules that returned (priority >= 0). If we have no
io modules available, it's an error */
if (NULL == selectable) {
/* There's no modules available. Doh! */
/* show_help */
return OMPI_ERROR;
}
/* Do some kind of collective operation to find a module that
everyone has available */
#if 1
/* For the moment, just take the top module off the list */
/* MSC actually take the buttom */
item = opal_list_remove_last(selectable);
avail = (avail_io_t *) item;
selected = *avail;
OBJ_RELEASE(avail);
#else
/* JMS CONTINUE HERE */
#endif
/* Everything left in the selectable list is therefore unwanted,
and we call their unquery() method (because they all had
query() invoked, but will never have init() invoked in this
scope). */
for (item = opal_list_remove_first(selectable); item != NULL;
item = opal_list_remove_first(selectable)) {
avail = (avail_io_t *) item;
unquery(avail, filename, info);
OBJ_RELEASE(item);
}
OBJ_RELEASE(selectable);
/* Finally -- delete the file with the selected component */
if (OMPI_SUCCESS != (err = delete_file(&selected, filename, info))) {
return err;
}
/* Announce the winner */
opal_output_verbose(10, ompi_io_base_framework.framework_output,
"io:base:delete: Selected io component %s",
selected.ai_component.v2_0_0.io_version.mca_component_name);
return OMPI_SUCCESS;
}
static int avail_io_compare (opal_list_item_t **itema,
opal_list_item_t **itemb)
{
const avail_io_t *availa = (const avail_io_t *) *itema;
const avail_io_t *availb = (const avail_io_t *) *itemb;
/* highest component last */
if (availa->ai_priority > availb->ai_priority) {
return 1;
} else if (availa->ai_priority < availb->ai_priority) {
return -1;
} else {
return 0;
}
}
/*
* For each module in the list, if it is in the list of names (or the
* list of names is NULL), then check and see if it wants to run, and
* do the resulting priority comparison. Make a list of components to
* be only those who returned that they want to run, and put them in
* priority order.
*/
static opal_list_t *check_components(opal_list_t *components,
char *filename, struct ompi_info_t *info,
char **names, int num_names)
{
int i;
const mca_base_component_t *component;
mca_base_component_list_item_t *cli;
bool want_to_check;
opal_list_t *selectable;
avail_io_t *avail;
/* Make a list of the components that query successfully */
selectable = OBJ_NEW(opal_list_t);
/* Scan through the list of components. This nested loop is
O(N^2), but we should never have too many components and/or
names, so this *hopefully* shouldn't matter... */
OPAL_LIST_FOREACH(cli, components, mca_base_component_list_item_t) {
component = cli->cli_component;
/* If we have a list of names, scan through it */
if (0 == num_names) {
want_to_check = true;
} else {
want_to_check = false;
for (i = 0; i < num_names; ++i) {
if (0 == strcmp(names[i], component->mca_component_name)) {
want_to_check = true;
}
}
}
/* If we determined that we want to check this component, then
do so */
if (want_to_check) {
avail = check_one_component(component, filename, info);
if (NULL != avail) {
/* Put this item on the list in priority order
(highest priority first). Should it go first? */
/* MSC actually put it Lowest priority first */
/* NTH sort this out later */
opal_list_append(selectable, (opal_list_item_t*)avail);
}
}
}
/* If we didn't find any available components, return an error */
if (0 == opal_list_get_size(selectable)) {
OBJ_RELEASE(selectable);
return NULL;
}
opal_list_sort(selectable, avail_io_compare);
/* All done */
return selectable;
}
/*
* Check a single component
*/
static avail_io_t *check_one_component(const mca_base_component_t *component,
char *filename, struct ompi_info_t *info)
{
avail_io_t *avail;
avail = query(component, filename, info);
if (NULL != avail) {
avail->ai_priority = (avail->ai_priority < 100) ?
avail->ai_priority : 100;
avail->ai_priority = (avail->ai_priority < 0) ?
0 : avail->ai_priority;
opal_output_verbose(10, ompi_io_base_framework.framework_output,
"io:base:delete: component available: %s, priority: %d",
component->mca_component_name,
avail->ai_priority);
} else {
opal_output_verbose(10, ompi_io_base_framework.framework_output,
"io:base:delete: component not available: %s",
component->mca_component_name);
}
return avail;
}
/**************************************************************************
* Query functions
**************************************************************************/
/*
* Take any version of a io module, query it, and return the right
* module struct
*/
static avail_io_t *query(const mca_base_component_t *component,
char *filename, struct ompi_info_t *info)
{
const mca_io_base_component_2_0_0_t *ioc_200;
/* io v2.0.0 */
if (2 == component->mca_major_version &&
0 == component->mca_minor_version &&
0 == component->mca_release_version) {
ioc_200 = (mca_io_base_component_2_0_0_t *) component;
return query_2_0_0(ioc_200, filename, info);
}
/* Unknown io API version -- return error */
return NULL;
}
static avail_io_t *query_2_0_0(const mca_io_base_component_2_0_0_t *component,
char *filename, struct ompi_info_t *info)
{
bool usable;
int priority, ret;
avail_io_t *avail;
struct mca_io_base_delete_t *private_data;
/* Query v2.0.0 */
avail = NULL;
private_data = NULL;
usable = false;
ret = component->io_delete_query(filename, info, &private_data, &usable,
&priority);
if (OMPI_SUCCESS == ret && usable) {
avail = OBJ_NEW(avail_io_t);
avail->ai_version = MCA_IO_BASE_V_2_0_0;
avail->ai_priority = priority;
avail->ai_component.v2_0_0 = *component;
avail->ai_private_data = private_data;
}
return avail;
}
/**************************************************************************
* Unquery functions
**************************************************************************/
static void unquery(avail_io_t *avail, char *filename, struct ompi_info_t *info)
{
const mca_io_base_component_2_0_0_t *ioc_200;
switch(avail->ai_version) {
case MCA_IO_BASE_V_2_0_0:
ioc_200 = &(avail->ai_component.v2_0_0);
if (NULL != ioc_200->io_delete_unquery) {
ioc_200->io_delete_unquery(filename, info, avail->ai_private_data);
}
break;
default:
break;
}
}
/**************************************************************************
* File delete functions
**************************************************************************/
/*
* Invoke the component's delete function
*/
static int delete_file(avail_io_t *avail, char *filename, struct ompi_info_t *info)
{
const mca_io_base_component_2_0_0_t *ioc_200;
switch(avail->ai_version) {
case MCA_IO_BASE_V_2_0_0:
ioc_200 = &(avail->ai_component.v2_0_0);
return ioc_200->io_delete_select(filename, info,
avail->ai_private_data);
break;
default:
return OMPI_ERROR;
break;
}
/* No way to reach here */
}