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/* -*- Mode: C; c-basic-offset:4 ; indent-tabs-mode:nil -*- */
/*
* Copyright (c) 2004-2010 The Trustees of Indiana University.
* All rights reserved.
*
* Copyright (c) 2015 Cisco Systems, Inc. All rights reserved.
* Copyright (c) 2015 Los Alamos National Security, LLC. All rights
* reserved.
* $COPYRIGHT$
*
* Additional copyrights may follow
*
* $HEADER$
*/
#include "opal_config.h"
#include <string.h>
#include <sys/types.h>
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif /* HAVE_UNISTD_H */
#include "opal/util/opal_environ.h"
#include "opal/util/output.h"
#include "opal/util/argv.h"
#include "opal/util/show_help.h"
#include "opal/util/opal_environ.h"
#include "opal/constants.h"
#include "opal/mca/base/mca_base_var.h"
#include "opal/mca/crs/crs.h"
#include "opal/mca/crs/base/base.h"
#include "opal/runtime/opal_cr.h"
#include "crs_none.h"
int opal_crs_none_module_init(void)
{
/*
* If not a tool, and requesting C/R support print a warning.
*/
if( opal_crs_none_select_warning &&
!opal_cr_is_tool && opal_cr_is_enabled ) {
opal_show_help("help-opal-crs-none.txt", "none:select-warning",
true);
}
return OPAL_SUCCESS;
}
int opal_crs_none_module_finalize(void)
{
return OPAL_SUCCESS;
}
int opal_crs_none_checkpoint(pid_t pid,
opal_crs_base_snapshot_t *snapshot,
opal_crs_base_ckpt_options_t *options,
opal_crs_state_type_t *state)
{
*state = OPAL_CRS_CONTINUE;
snapshot->component_name = strdup("none");
snapshot->cold_start = false;
/*
* Update the snapshot metadata
*/
if( NULL == snapshot->metadata ) {
if (NULL == (snapshot->metadata = fopen(snapshot->metadata_filename, "a")) ) {
opal_output(0,
"crs:none: checkpoint(): Error: Unable to open the file (%s)",
snapshot->metadata_filename);
return OPAL_ERROR;
}
}
fprintf(snapshot->metadata, "%s%s\n", CRS_METADATA_COMP, snapshot->component_name);
fclose(snapshot->metadata);
snapshot->metadata = NULL;
if( options->stop ) {
opal_output(0,
"crs:none: checkpoint(): Error: SIGSTOP Not currently supported!");
}
return OPAL_SUCCESS;
}
int opal_crs_none_restart(opal_crs_base_snapshot_t *base_snapshot, bool spawn_child, pid_t *child_pid)
{
int exit_status = OPAL_SUCCESS;
char **tmp_argv = NULL;
char **cr_argv = NULL;
int status;
*child_pid = getpid();
if( NULL == base_snapshot->metadata ) {
if (NULL == (base_snapshot->metadata = fopen(base_snapshot->metadata_filename, "a")) ) {
opal_output(0,
"crs:none: checkpoint(): Error: Unable to open the file (%s)",
base_snapshot->metadata_filename);
return OPAL_ERROR;
}
}
opal_crs_base_metadata_read_token(base_snapshot->metadata, CRS_METADATA_CONTEXT, &tmp_argv);
if( NULL == tmp_argv ) {
opal_output(opal_crs_base_framework.framework_output,
"crs:none: none_restart: Error: Failed to read the %s token from the local checkpoint in %s",
CRS_METADATA_CONTEXT, base_snapshot->metadata_filename);
exit_status = OPAL_ERROR;
goto cleanup;
}
if( opal_argv_count(tmp_argv) <= 0 ) {
opal_output_verbose(10, opal_crs_base_framework.framework_output,
"crs:none: none_restart: No command line to exec, so just returning");
exit_status = OPAL_SUCCESS;
goto cleanup;
}
if ( NULL == (cr_argv = opal_argv_split(tmp_argv[0], ' ')) ) {
exit_status = OPAL_ERROR;
goto cleanup;
}
if( !spawn_child ) {
opal_output_verbose(10, opal_crs_base_framework.framework_output,
"crs:none: none_restart: exec :(%s, %s):",
cr_argv[0], tmp_argv[0]);
status = execvp(cr_argv[0], cr_argv);
if(status < 0) {
opal_output(opal_crs_base_framework.framework_output,
"crs:none: none_restart: Child failed to execute :(%d):", status);
}
opal_output(opal_crs_base_framework.framework_output,
"crs:none: none_restart: execvp returned %d", status);
exit_status = status;
goto cleanup;
} else {
opal_output(opal_crs_base_framework.framework_output,
"crs:none: none_restart: Spawn not implemented");
exit_status = OPAL_ERR_NOT_IMPLEMENTED;
goto cleanup;
}
cleanup:
if (cr_argv) {
opal_argv_free (cr_argv);
}
fclose(base_snapshot->metadata);
return exit_status;
}
int opal_crs_none_disable_checkpoint(void)
{
return OPAL_SUCCESS;
}
int opal_crs_none_enable_checkpoint(void)
{
return OPAL_SUCCESS;
}
int opal_crs_none_prelaunch(int32_t rank,
char *base_snapshot_dir,
char **app,
char **cwd,
char ***argv,
char ***env)
{
char * tmp_env_var = NULL;
(void) mca_base_var_env_name("opal_cr_is_tool", &tmp_env_var);
opal_setenv(tmp_env_var,
"0", true, env);
free(tmp_env_var);
tmp_env_var = NULL;
return OPAL_SUCCESS;
}
int opal_crs_none_reg_thread(void)
{
return OPAL_SUCCESS;
}
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