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/*
* 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.
* $COPYRIGHT$
*
* Additional copyrights may follow
*
* $HEADER$
*/
#include "opal_config.h"
#include <stdio.h>
#include <string.h>
#include "opal/util/cmd_line.h"
#include "opal/util/argv.h"
#include "opal/util/opal_environ.h"
#include "opal/mca/base/base.h"
#include "opal/constants.h"
/*
* Private variables
*/
/*
* Private functions
*/
static int process_arg(const char *param, const char *value,
char ***params, char ***values);
static void add_to_env(char **params, char **values, char ***env);
/*
* Add -mca to the possible command line options list
*/
int mca_base_cmd_line_setup(opal_cmd_line_t *cmd)
{
int ret;
ret = opal_cmd_line_make_opt3(cmd, '\0', "mca", "mca", 2,
"Pass context-specific MCA parameters; they are considered global if --gmca is not used and only one context is specified (arg0 is the parameter name; arg1 is the parameter value)");
if (OPAL_SUCCESS != ret) {
return ret;
}
ret = opal_cmd_line_make_opt3(cmd, '\0', "gmca", "gmca", 2,
"Pass global MCA parameters that are applicable to all contexts (arg0 is the parameter name; arg1 is the parameter value)");
return ret;
}
/*
* Look for and handle any -mca options on the command line
*/
int mca_base_cmd_line_process_args(opal_cmd_line_t *cmd,
char ***context_env, char ***global_env)
{
int i, num_insts;
char **params;
char **values;
/* If no relevant parameters were given, just return */
if (!opal_cmd_line_is_taken(cmd, "mca") &&
!opal_cmd_line_is_taken(cmd, "gmca")) {
return OPAL_SUCCESS;
}
/* Handle app context-specific parameters */
num_insts = opal_cmd_line_get_ninsts(cmd, "mca");
params = values = NULL;
for (i = 0; i < num_insts; ++i) {
process_arg(opal_cmd_line_get_param(cmd, "mca", i, 0),
opal_cmd_line_get_param(cmd, "mca", i, 1),
¶ms, &values);
}
if (NULL != params) {
add_to_env(params, values, context_env);
opal_argv_free(params);
opal_argv_free(values);
}
/* Handle global parameters */
num_insts = opal_cmd_line_get_ninsts(cmd, "gmca");
params = values = NULL;
for (i = 0; i < num_insts; ++i) {
process_arg(opal_cmd_line_get_param(cmd, "gmca", i, 0),
opal_cmd_line_get_param(cmd, "gmca", i, 1),
¶ms, &values);
}
if (NULL != params) {
add_to_env(params, values, global_env);
opal_argv_free(params);
opal_argv_free(values);
}
/* All done */
return OPAL_SUCCESS;
}
/*
* Process a single MCA argument.
*/
int static process_arg(const char *param, const char *value,
char ***params, char ***values)
{
int i;
char *new_str;
/* Look to see if we've already got an -mca argument for the same
param. Check against the list of MCA param's that we've
already saved arguments for. */
for (i = 0; NULL != *params && NULL != (*params)[i]; ++i) {
if (0 == strcmp(param, (*params)[i])) {
asprintf(&new_str, "%s,%s", (*values)[i], value);
free((*values)[i]);
(*values)[i] = new_str;
return OPAL_SUCCESS;
}
}
/* If we didn't already have an value for the same param, save
this one away */
opal_argv_append_nosize(params, param);
opal_argv_append_nosize(values, value);
return OPAL_SUCCESS;
}
static void add_to_env(char **params, char **values, char ***env)
{
int i;
char *name;
/* Loop through all the args that we've gotten and make env
vars of the form OMPI_MCA_*=value. */
for (i = 0; NULL != params && NULL != params[i]; ++i) {
name = mca_base_param_environ_variable(params[i], NULL, NULL);
opal_setenv(name, values[i], true, env);
free(name);
}
}
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