ports/openmpi
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openmpi/ompi/info/info.c
Jeff Squyres 54ca3310ea ompi: cleanup various string operations 
Several fixes to string handling:

1. strncpy() -> opal_string_copy() (because opal_string_copy()
   guarantees to NULL-terminate, and strncpy() does not)
2. Simplify a few places, such as:
   * Since opal_string_copy() guarantees to NULL terminate, eliminate
     some memsets(), etc.
   * Use opal_asprintf() to eliminate multi-step string creation

There's more work that could be done; e.g., this commit doesn't
attempt to clean up any strcpy() usage.

Signed-off-by: Jeff Squyres <jsquyres@cisco.com>
2018-10-14 16:10:20 -07:00

373 строки
12 KiB
C
Исходник Ответственный История

/* -*- Mode: C; c-basic-offset:4 ; indent-tabs-mode:nil -*- */
/*
* Copyright (c) 2004-2005 The Trustees of Indiana University and Indiana
* University Research and Technology
* Corporation. All rights reserved.
* Copyright (c) 2004-2017 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) 2007-2018 Cisco Systems, Inc. All rights reserved
* Copyright (c) 2009 Sun Microsystems, Inc. All rights reserved.
* Copyright (c) 2012-2015 Los Alamos National Security, LLC. All rights
* reserved.
* Copyright (c) 2015-2018 Research Organization for Information Science
* and Technology (RIST). All rights reserved.
* Copyright (c) 2016-2017 IBM Corporation. All rights reserved.
* $COPYRIGHT$
*
* Additional copyrights may follow
*
* $HEADER$
*/
#include "ompi_config.h"
#include "ompi/constants.h"
#include <string.h>
#include <errno.h>
#include <stdlib.h>
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
#include <limits.h>
#include <ctype.h>
#ifdef HAVE_SYS_UTSNAME_H
#include <sys/utsname.h>
#endif
#include <assert.h>
#include "opal/util/argv.h"
#include "opal/util/opal_getcwd.h"
#include "opal/util/output.h"
#include "opal/util/info.h"
#include "ompi/info/info.h"
#include "ompi/runtime/mpiruntime.h"
#include "ompi/runtime/params.h"
/*
* Global variables
*/
ompi_predefined_info_t ompi_mpi_info_null = {{{{{0}}}}};
ompi_predefined_info_t *ompi_mpi_info_null_addr = &ompi_mpi_info_null;
ompi_predefined_info_t ompi_mpi_info_env = {{{{{0}}}}};
/*
* Local functions
*/
static void info_constructor(ompi_info_t *info);
static void info_destructor(ompi_info_t *info);
/*
* ompi_info_t classes
*/
OBJ_CLASS_INSTANCE(ompi_info_t,
opal_info_t,
info_constructor,
info_destructor);
/*
* The global fortran <-> C translation table
*/
opal_pointer_array_t ompi_info_f_to_c_table = {{0}};
/*
* This function is called during ompi_init and initializes the
* fortran to C translation table. It also fills in the values
* for the MPI_INFO_GET_ENV object
*/
int ompi_mpiinfo_init(void)
{
char val[OPAL_MAXHOSTNAMELEN];
char *cptr;
/* initialize table */
OBJ_CONSTRUCT(&ompi_info_f_to_c_table, opal_pointer_array_t);
if( OPAL_SUCCESS != opal_pointer_array_init(&ompi_info_f_to_c_table, 0,
OMPI_FORTRAN_HANDLE_MAX, 16) ) {
return OMPI_ERROR;
}
/* Create MPI_INFO_NULL */
OBJ_CONSTRUCT(&ompi_mpi_info_null.info, ompi_info_t);
assert(ompi_mpi_info_null.info.i_f_to_c_index == 0);
/* Create MPI_INFO_ENV */
OBJ_CONSTRUCT(&ompi_mpi_info_env.info, ompi_info_t);
assert(ompi_mpi_info_env.info.i_f_to_c_index == 1);
/* fill the env info object */
/* command for this app_context */
if (NULL != (cptr = getenv("OMPI_COMMAND"))) {
opal_info_set(&ompi_mpi_info_env.info.super, "command", cptr);
}
/* space-separated list of argv for this command */
if (NULL != (cptr = getenv("OMPI_ARGV"))) {
opal_info_set(&ompi_mpi_info_env.info.super, "argv", cptr);
}
/* max procs for the entire job */
if (NULL != (cptr = getenv("OMPI_MCA_orte_ess_num_procs"))) {
opal_info_set(&ompi_mpi_info_env.info.super, "maxprocs", cptr);
/* Open MPI does not support the "soft" option, so set it to maxprocs */
opal_info_set(&ompi_mpi_info_env.info.super, "soft", cptr);
}
/* local host name */
gethostname(val, sizeof(val));
opal_info_set(&ompi_mpi_info_env.info.super, "host", val);
/* architecture name */
if (NULL != (cptr = getenv("OMPI_MCA_orte_cpu_type"))) {
opal_info_set(&ompi_mpi_info_env.info.super, "arch", cptr);
}
#ifdef HAVE_SYS_UTSNAME_H
else {
struct utsname sysname;
uname(&sysname);
cptr = sysname.machine;
opal_info_set(&ompi_mpi_info_env.info.super, "arch", cptr);
}
#endif
/* initial working dir of this process - only set when
* run by mpiexec as we otherwise have no reliable way
* of determining the value
*/
if (NULL != (cptr = getenv("OMPI_MCA_initial_wdir"))) {
opal_info_set(&ompi_mpi_info_env.info.super, "wdir", cptr);
}
/* provide the REQUESTED thread level - may be different
* than the ACTUAL thread level you get.
* ugly, but have to do a switch to find the string representation */
switch (ompi_mpi_thread_requested) {
case MPI_THREAD_SINGLE:
opal_info_set(&ompi_mpi_info_env.info.super, "thread_level", "MPI_THREAD_SINGLE");
break;
case MPI_THREAD_FUNNELED:
opal_info_set(&ompi_mpi_info_env.info.super, "thread_level", "MPI_THREAD_FUNNELED");
break;
case MPI_THREAD_SERIALIZED:
opal_info_set(&ompi_mpi_info_env.info.super, "thread_level", "MPI_THREAD_SERIALIZED");
break;
case MPI_THREAD_MULTIPLE:
opal_info_set(&ompi_mpi_info_env.info.super, "thread_level", "MPI_THREAD_MULTIPLE");
break;
default:
/* do nothing - don't know the value */
break;
}
/**** now some OMPI-specific values that other MPIs may not provide ****/
/* the number of app_contexts in this job */
if (NULL != (cptr = getenv("OMPI_NUM_APP_CTX"))) {
opal_info_set(&ompi_mpi_info_env.info.super, "ompi_num_apps", cptr);
}
/* space-separated list of first MPI rank of each app_context */
if (NULL != (cptr = getenv("OMPI_FIRST_RANKS"))) {
opal_info_set(&ompi_mpi_info_env.info.super, "ompi_first_rank", cptr);
}
/* space-separated list of num procs for each app_context */
if (NULL != (cptr = getenv("OMPI_APP_CTX_NUM_PROCS"))) {
opal_info_set(&ompi_mpi_info_env.info.super, "ompi_np", cptr);
}
/* location of the directory containing any prepositioned files
* the user may have requested
*/
if (NULL != (cptr = getenv("OMPI_FILE_LOCATION"))) {
opal_info_set(&ompi_mpi_info_env.info.super, "ompi_positioned_file_dir", cptr);
}
/* All done */
return OMPI_SUCCESS;
}
// Generally ompi_info_t processing is handled by opal_info_t now.
// But to avoid compiler warnings and to avoid having to constantly
// change code to mpiinfo->super to make MPI code use the opal_info_t
// it's convenient to have ompi_info_t wrappers for some of the opal_info_t
// related calls:
int ompi_info_dup (ompi_info_t *info, ompi_info_t **newinfo) {
return opal_info_dup (&(info->super), (opal_info_t **)newinfo);
}
int ompi_info_dup_mpistandard (ompi_info_t *info, ompi_info_t **newinfo) {
return opal_info_dup_mpistandard (&(info->super), (opal_info_t **)newinfo);
}
int ompi_info_set (ompi_info_t *info, const char *key, const char *value) {
return opal_info_set (&(info->super), key, value);
}
int ompi_info_set_value_enum (ompi_info_t *info, const char *key, int value,
mca_base_var_enum_t *var_enum)
{
return opal_info_set_value_enum (&(info->super), key, value, var_enum);
}
int ompi_info_get (ompi_info_t *info, const char *key, int valuelen,
char *value, int *flag)
{
return opal_info_get (&(info->super), key, valuelen, value, flag);
}
int ompi_info_get_value_enum (ompi_info_t *info, const char *key, int *value,
int default_value, mca_base_var_enum_t *var_enum,
int *flag)
{
return opal_info_get_value_enum (&(info->super), key, value,
default_value, var_enum, flag);
}
int ompi_info_get_bool(ompi_info_t *info, char *key, bool *value, int *flag) {
return opal_info_get_bool(&(info->super), key, value, flag);
}
int ompi_info_delete (ompi_info_t *info, const char *key) {
return opal_info_delete (&(info->super), key);
}
int ompi_info_get_valuelen (ompi_info_t *info, const char *key, int *valuelen,
int *flag)
{
return opal_info_get_valuelen (&(info->super), key, valuelen, flag);
}
int ompi_info_get_nthkey (ompi_info_t *info, int n, char *key) {
return opal_info_get_nthkey (&(info->super), n, key);
}
int ompi_info_get_nkeys(ompi_info_t *info, int *nkeys)
{
return opal_info_get_nkeys (&(info->super), nkeys);
}
/*
* Shut down MPI_Info handling
*/
int ompi_mpiinfo_finalize(void)
{
size_t i, max;
ompi_info_t *info;
opal_list_item_t *item;
opal_info_entry_t *entry;
bool found = false;
OBJ_DESTRUCT(&ompi_mpi_info_null);
OBJ_DESTRUCT(&ompi_mpi_info_env);
/* Go through the f2c table and see if anything is left. Free them
all. */
max = opal_pointer_array_get_size(&ompi_info_f_to_c_table);
for (i = 2; i < max; ++i) {
info = (ompi_info_t *)opal_pointer_array_get_item(&ompi_info_f_to_c_table, i);
/* If the info was freed but still exists because the user
told us to never free handles, then do an OBJ_RELEASE it
and all is well. Then get the value again and see if it's
actually been freed. */
if (NULL != info && ompi_debug_no_free_handles && info->i_freed) {
OBJ_RELEASE(info);
info = (ompi_info_t *)opal_pointer_array_get_item(&ompi_info_f_to_c_table, i);
}
/* If it still exists here and was never freed, then it's an
orphan */
if (NULL != info) {
/* If the user wanted warnings about MPI object leaks, print out
a message */
if (!info->i_freed && ompi_debug_show_handle_leaks) {
if (ompi_debug_show_handle_leaks) {
opal_output(0, "WARNING: MPI_Info still allocated at MPI_FINALIZE");
for (item = opal_list_get_first(&info->super.super);
opal_list_get_end(&(info->super.super)) != item;
item = opal_list_get_next(item)) {
entry = (opal_info_entry_t *) item;
opal_output(0, "WARNING: key=\"%s\", value=\"%s\"",
entry->ie_key,
NULL != entry->ie_value ? entry->ie_value : "(null)");
found = true;
}
}
OBJ_RELEASE(info);
}
/* Don't bother setting each element back down to NULL; it
would just take a lot of thread locks / unlocks and
since we're destroying everything, it isn't worth it */
if (!found && ompi_debug_show_handle_leaks) {
opal_output(0, "WARNING: (no keys)");
}
}
}
/* All done -- destroy the table */
OBJ_DESTRUCT(&ompi_info_f_to_c_table);
return OPAL_SUCCESS;
}
/*
* This function is invoked when OBJ_NEW() is called. Here, we add this
* info pointer to the table and then store its index as the handle
*/
static void info_constructor(ompi_info_t *info)
{
info->i_f_to_c_index = opal_pointer_array_add(&ompi_info_f_to_c_table,
info);
info->i_freed = false;
/*
* If the user doesn't want us to ever free it, then add an extra
* RETAIN here
*/
if (ompi_debug_no_free_handles) {
OBJ_RETAIN(&(info->super));
}
}
/*
* * This function is called during OBJ_DESTRUCT of "info". When this
* * done, we need to remove the entry from the opal fortran to C
* * translation table
* */
static void info_destructor(ompi_info_t *info)
{
/* reset the &ompi_info_f_to_c_table entry - make sure that the
entry is in the table */
if (MPI_UNDEFINED != info->i_f_to_c_index &&
NULL != opal_pointer_array_get_item(&ompi_info_f_to_c_table,
info->i_f_to_c_index)){
opal_pointer_array_set_item(&ompi_info_f_to_c_table,
info->i_f_to_c_index, NULL);
}
}
/*
* Free an info handle and all of its keys and values.
*/
int ompi_info_free (ompi_info_t **info)
{
(*info)->i_freed = true;
OBJ_RELEASE(*info);
*info = MPI_INFO_NULL;
return MPI_SUCCESS;
}
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