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misc.h
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misc.h
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/*
* Copyright © 2009 CNRS
* Copyright © 2009-2023 Inria. All rights reserved.
* Copyright © 2009-2012 Université Bordeaux
* Copyright © 2009-2011 Cisco Systems, Inc. All rights reserved.
* Copyright © 2023 Université de Reims Champagne-Ardenne. All rights reserved.
* See COPYING in top-level directory.
*/
#ifndef HWLOC_UTILS_MISC_H
#define HWLOC_UTILS_MISC_H
#include "private/autogen/config.h"
#include "hwloc.h"
#include "private/misc.h" /* for hwloc_strncasecmp() */
#include <ctype.h>
#include <stdio.h>
#include <string.h>
#include <sys/stat.h>
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
#ifdef HAVE_STDINT_H
#include <stdint.h>
#endif
#ifdef HAVE_DIRENT_H
#include <dirent.h>
#endif
#include <fcntl.h>
#include <assert.h>
extern void usage(const char *name, FILE *where);
static __hwloc_inline void
hwloc_utils_check_api_version(const char *callname)
{
unsigned version = hwloc_get_api_version();
if ((version >> 16) != (HWLOC_API_VERSION >> 16)) {
fprintf(stderr,
"%s compiled for hwloc API 0x%x but running on library API 0x%x.\n"
"You may need to point LD_LIBRARY_PATH to the right hwloc library.\n"
"Aborting since the new ABI is not backward compatible.\n",
callname, (unsigned) HWLOC_API_VERSION, version);
exit(EXIT_FAILURE);
}
}
static __hwloc_inline void
hwloc_utils_input_format_usage(FILE *where, int addspaces)
{
fprintf (where, " --input <XML file>\n");
fprintf (where, " -i <XML file> %*sRead topology from XML file <path>\n",
addspaces, " ");
#ifdef HWLOC_LINUX_SYS
fprintf (where, " --input <directory>\n");
fprintf (where, " -i <directory> %*sRead topology from chroot containing the /proc and /sys\n",
addspaces, " ");
fprintf (where, " %*sof another system\n",
addspaces, " ");
#endif
#ifdef HWLOC_HAVE_X86_CPUID
fprintf (where, " --input <directory>\n");
fprintf (where, " -i <directory> %*sRead topology from directory containing a CPUID dump\n",
addspaces, " ");
#endif
fprintf (where, " --input \"node:2 2\"\n");
fprintf (where, " -i \"node:2 2\" %*sSimulate a fake hierarchy, here with 2 NUMA nodes of 2\n",
addspaces, " ");
fprintf (where, " %*sprocessors\n",
addspaces, " ");
fprintf (where, " --input-format <format>\n");
fprintf (where, " --if <format> %*sEnforce input format among "
"xml, "
#ifdef HWLOC_LINUX_SYS
"fsroot, "
#endif
#ifdef HWLOC_HAVE_X86_CPUID
"cpuid, "
#endif
"synthetic\n",
addspaces, " ");
}
struct hwloc_utils_input_format_s {
enum hwloc_utils_input_format {
HWLOC_UTILS_INPUT_DEFAULT,
HWLOC_UTILS_INPUT_XML,
HWLOC_UTILS_INPUT_FSROOT,
HWLOC_UTILS_INPUT_SYNTHETIC,
HWLOC_UTILS_INPUT_CPUID,
HWLOC_UTILS_INPUT_SHMEM,
HWLOC_UTILS_INPUT_ARCHIVE
} format;
int oldworkdir;
};
#define HWLOC_UTILS_INPUT_FORMAT_DEFAULT (struct hwloc_utils_input_format_s) { HWLOC_UTILS_INPUT_DEFAULT, -1 }
static __hwloc_inline enum hwloc_utils_input_format
hwloc_utils_parse_input_format(const char *name, const char *callname)
{
if (!hwloc_strncasecmp(name, "default", 3))
return HWLOC_UTILS_INPUT_DEFAULT;
else if (!hwloc_strncasecmp(name, "xml", 1))
return HWLOC_UTILS_INPUT_XML;
else if (!hwloc_strncasecmp(name, "fsroot", 1))
return HWLOC_UTILS_INPUT_FSROOT;
else if (!hwloc_strncasecmp(name, "shmem", 5))
return HWLOC_UTILS_INPUT_SHMEM;
else if (!hwloc_strncasecmp(name, "synthetic", 1))
return HWLOC_UTILS_INPUT_SYNTHETIC;
else if (!hwloc_strncasecmp(name, "cpuid", 1))
return HWLOC_UTILS_INPUT_CPUID;
else if (!hwloc_strncasecmp(name, "archive", 1))
return HWLOC_UTILS_INPUT_ARCHIVE;
fprintf(stderr, "input format `%s' not supported\n", name);
usage(callname, stderr);
exit(EXIT_FAILURE);
}
static __hwloc_inline int
hwloc_utils_lookup_input_option(char *argv[], int argc, int *consumed_opts,
char **inputp, struct hwloc_utils_input_format_s *input_formatp,
const char *callname)
{
if (!strcmp (argv[0], "--input")
|| !strcmp (argv[0], "-i")) {
if (argc <= 1) {
usage (callname, stderr);
exit(EXIT_FAILURE);
}
if (strlen(argv[1]))
*inputp = argv[1];
else
*inputp = NULL;
*consumed_opts = 1;
return 1;
}
else if (!strcmp (argv[0], "--input-format")
|| !strcmp (argv[0], "--if")) {
if (argc <= 1) {
usage (callname, stderr);
exit(EXIT_FAILURE);
}
*input_formatp = HWLOC_UTILS_INPUT_FORMAT_DEFAULT;
input_formatp->format = hwloc_utils_parse_input_format (argv[1], callname);
*consumed_opts = 1;
return 1;
}
return 0;
}
static __hwloc_inline enum hwloc_utils_input_format
hwloc_utils_autodetect_input_format(const char *input, int verbose)
{
struct stat inputst;
int err;
err = stat(input, &inputst);
if (err < 0) {
if (verbose > 0)
printf("assuming `%s' is a synthetic topology description\n", input);
return HWLOC_UTILS_INPUT_SYNTHETIC;
}
if (S_ISREG(inputst.st_mode)) {
size_t len = strlen(input);
if (len >= 6 && !strcmp(input+len-6, ".shmem")) {
if (verbose > 0)
printf("assuming `%s' is a shmem topology file\n", input);
return HWLOC_UTILS_INPUT_SHMEM;
}
if ((len >= 7 && !strcmp(input+len-7, ".tar.gz"))
|| (len >= 8 && !strcmp(input+len-8, ".tar.bz2"))) {
if (verbose > 0)
printf("assuming `%s' is an archive topology file\n", input);
return HWLOC_UTILS_INPUT_ARCHIVE;
}
if (verbose > 0)
printf("assuming `%s' is a XML file\n", input);
return HWLOC_UTILS_INPUT_XML;
}
if (S_ISDIR(inputst.st_mode)) {
char *childpath;
struct stat childst;
childpath = malloc(strlen(input) + 10); /* enough for appending /sys, /proc or /pu0 */
if (childpath) {
snprintf(childpath, strlen(input) + 10, "%s/pu0", input);
if (stat(childpath, &childst) == 0 && S_ISREG(childst.st_mode)) {
if (verbose > 0)
printf("assuming `%s' is a cpuid dump\n", input);
free(childpath);
return HWLOC_UTILS_INPUT_CPUID;
}
snprintf(childpath, strlen(input) + 10, "%s/proc", input);
if (stat(childpath, &childst) == 0 && S_ISDIR(childst.st_mode)) {
if (verbose > 0)
printf("assuming `%s' is a file-system root\n", input);
free(childpath);
return HWLOC_UTILS_INPUT_FSROOT;
}
}
free(childpath);
}
fprintf (stderr, "Unrecognized input file: %s\n", input);
return HWLOC_UTILS_INPUT_DEFAULT;
}
static __hwloc_inline int
hwloc_utils_enable_input_format(struct hwloc_topology *topology, unsigned long flags,
const char *input,
struct hwloc_utils_input_format_s *input_formatp,
int verbose, const char *callname)
{
enum hwloc_utils_input_format *input_format = &input_formatp->format;
if (*input_format == HWLOC_UTILS_INPUT_DEFAULT && !strcmp(input, "-.xml")) {
*input_format = HWLOC_UTILS_INPUT_XML;
input = "-";
}
if (*input_format == HWLOC_UTILS_INPUT_DEFAULT) {
*input_format = hwloc_utils_autodetect_input_format(input, verbose);
if (*input_format == HWLOC_UTILS_INPUT_DEFAULT) {
usage (callname, stderr);
return EXIT_FAILURE;
}
}
switch (*input_format) {
case HWLOC_UTILS_INPUT_XML:
if (!strcmp(input, "-"))
input = "/dev/stdin";
if (hwloc_topology_set_xml(topology, input)) {
perror("Setting source XML file");
return EXIT_FAILURE;
}
break;
case HWLOC_UTILS_INPUT_FSROOT: {
#ifdef HWLOC_LINUX_SYS
char *env;
if (asprintf(&env, "HWLOC_FSROOT=%s", input) < 0)
fprintf(stderr, "Failed to pass input filesystem root directory to HWLOC_FSROOT environment variable\n");
else
putenv(env);
putenv((char *) "HWLOC_DUMPED_HWDATA_DIR=/var/run/hwloc");
env = getenv("HWLOC_COMPONENTS");
if (env)
fprintf(stderr, "Cannot force linux component first because HWLOC_COMPONENTS environment variable is already set to %s.\n", env);
else
putenv((char *) "HWLOC_COMPONENTS=linux,pci,stop");
/* normally-set flags are overriden by envvar-forced backends */
if (flags & HWLOC_TOPOLOGY_FLAG_IS_THISSYSTEM)
putenv((char *) "HWLOC_THISSYSTEM=1");
#else /* HWLOC_LINUX_SYS */
fprintf(stderr, "This installation of hwloc does not support changing the file-system root, sorry.\n");
exit(EXIT_FAILURE);
#endif /* HWLOC_LINUX_SYS */
break;
}
case HWLOC_UTILS_INPUT_CPUID: {
#ifdef HWLOC_HAVE_X86_CPUID
size_t len = strlen("HWLOC_CPUID_PATH=")+strlen(input)+1;
char *env = malloc(len);
if (!env) {
fprintf(stderr, "Failed to pass input cpuid dump path to HWLOC_CPUID_PATH environment variable\n");
} else {
snprintf(env, len, "HWLOC_CPUID_PATH=%s", input);
putenv(env);
}
env = getenv("HWLOC_COMPONENTS");
if (env)
fprintf(stderr, "Cannot force x86 component first because HWLOC_COMPONENTS environment variable is already set to %s.\n", env);
else
putenv((char *) "HWLOC_COMPONENTS=x86,stop");
/* normally-set flags are overriden by envvar-forced backends */
if (flags & HWLOC_TOPOLOGY_FLAG_IS_THISSYSTEM)
putenv((char *) "HWLOC_THISSYSTEM=1");
#else
fprintf(stderr, "This installation of hwloc does not support loading from a cpuid dump, sorry.\n");
exit(EXIT_FAILURE);
#endif
break;
}
case HWLOC_UTILS_INPUT_ARCHIVE: {
#ifdef HWLOC_LINUX_SYS
char mntpath[] = "/tmp/tmpdir.hwloc.archivemount.XXXXXX";
char mntcmd[512];
char umntcmd[512];
DIR *dir;
struct dirent *dirent;
/* oldworkdir == -1 -> close would fail if !defined(O_PATH), but we don't care */
struct hwloc_utils_input_format_s sub_input_format = HWLOC_UTILS_INPUT_FORMAT_DEFAULT;
char *subdir = NULL;
int err;
#ifdef O_PATH
if (-1 == input_formatp->oldworkdir) { /* if archivemount'ed recursively, only keep the first oldworkdir */
sub_input_format.oldworkdir = open(".", O_DIRECTORY|O_PATH); /* more efficient than getcwd(3) */
if (sub_input_format.oldworkdir < 0) {
perror("Saving current working directory");
return EXIT_FAILURE;
}
}
#endif
if (!mkdtemp(mntpath)) {
perror("Creating archivemount directory");
close(sub_input_format.oldworkdir);
return EXIT_FAILURE;
}
snprintf(mntcmd, sizeof(mntcmd), "archivemount -o ro %s %s", input, mntpath);
err = system(mntcmd);
if (err) {
perror("Archivemount'ing the archive");
rmdir(mntpath);
close(sub_input_format.oldworkdir);
return EXIT_FAILURE;
}
snprintf(umntcmd, sizeof(umntcmd), "umount -l %s", mntpath);
/* enter the mount point and stay there so that we can umount+rmdir immediately but still use it later */
if (chdir(mntpath) < 0) {
perror("Entering the archivemount'ed archive");
if (system(umntcmd) < 0)
perror("Unmounting the archivemount'ed archive (ignored)");
rmdir(mntpath);
close(sub_input_format.oldworkdir);
return EXIT_FAILURE;
}
if (system(umntcmd) < 0)
perror("Unmounting the archivemount'ed archive (ignored)");
rmdir(mntpath);
/* there should be a single subdirectory in the archive */
dir = opendir(".");
while ((dirent = readdir(dir)) != NULL) {
if (strcmp(dirent->d_name, ".") && strcmp(dirent->d_name, "..")) {
subdir = dirent->d_name;
break;
}
}
closedir(dir);
if (!subdir) {
perror("No subdirectory in archivemount directory");
close(sub_input_format.oldworkdir);
return EXIT_FAILURE;
}
/* call ourself recursively on subdir, it should be either a fsroot or a cpuid directory */
err = hwloc_utils_enable_input_format(topology, flags, subdir, &sub_input_format, verbose, callname);
if (!err)
*input_formatp = sub_input_format;
else {
close(sub_input_format.oldworkdir);
return err;
}
#else
fprintf(stderr, "This installation of hwloc does not support loading from an archive, sorry.\n");
exit(EXIT_FAILURE);
#endif
break;
}
case HWLOC_UTILS_INPUT_SYNTHETIC:
if (hwloc_topology_set_synthetic(topology, input)) {
perror("Setting synthetic topology description");
return EXIT_FAILURE;
}
break;
case HWLOC_UTILS_INPUT_SHMEM:
break;
case HWLOC_UTILS_INPUT_DEFAULT:
assert(0);
}
return 0;
}
static __hwloc_inline void
hwloc_utils_disable_input_format(struct hwloc_utils_input_format_s *input_format)
{
if (-1 < input_format->oldworkdir) {
#ifdef HWLOC_LINUX_SYS
#ifdef O_PATH
int err = fchdir(input_format->oldworkdir);
if (err) {
perror("Restoring current working directory");
}
#else
fprintf(stderr, "Couldn't restore working directory. Errors may arise.\n");
#endif
close(input_format->oldworkdir);
input_format->oldworkdir = -1;
#else
fprintf(stderr, "oldworkdir should not have been changed. You should not have reached this execution branch.\n");
exit(EXIT_FAILURE);
#endif
}
}
static __hwloc_inline void
hwloc_utils_print_distance_matrix(FILE *output, unsigned nbobjs, hwloc_obj_t *objs, hwloc_uint64_t *matrix, int logical, int show_types)
{
unsigned i, j;
#define MATRIX_ITEM_SIZE_MAX 17 /* 16 + ending \0 */
char *headers;
char *values;
char *buf;
size_t len, max;
headers = malloc((nbobjs+1)*MATRIX_ITEM_SIZE_MAX);
values = malloc(nbobjs*nbobjs*MATRIX_ITEM_SIZE_MAX);
if (!headers || !values) {
free(headers);
free(values);
return;
}
snprintf(headers, MATRIX_ITEM_SIZE_MAX, " index" /* 16 */);
max = 5;
/* prepare column headers */
for(i=0, buf = headers + MATRIX_ITEM_SIZE_MAX;
i<nbobjs;
i++, buf += MATRIX_ITEM_SIZE_MAX) {
char tmp[MATRIX_ITEM_SIZE_MAX];
hwloc_obj_t obj = objs[i];
unsigned index = logical ? obj->logical_index : obj->os_index;
if (obj->type == HWLOC_OBJ_OS_DEVICE)
len = snprintf(tmp, MATRIX_ITEM_SIZE_MAX,
"%s", obj->name);
else if (obj->type == HWLOC_OBJ_PCI_DEVICE)
len = snprintf(tmp, MATRIX_ITEM_SIZE_MAX,
"%04x:%02x:%02x.%01x",
obj->attr->pcidev.domain, obj->attr->pcidev.bus, obj->attr->pcidev.dev, obj->attr->pcidev.func);
else if (show_types)
len = snprintf(tmp, MATRIX_ITEM_SIZE_MAX,
"%s:%d", hwloc_obj_type_string(obj->type), (int) index);
else
len = snprintf(tmp, MATRIX_ITEM_SIZE_MAX,
"%d", (int) index);
if (len >= max)
max = len;
/* store it at the end of the slot in headers */
memcpy(buf + (MATRIX_ITEM_SIZE_MAX - len - 1), tmp, len+1);
/* and pad with spaces at the begining */
memset(buf, ' ', MATRIX_ITEM_SIZE_MAX - len - 1);
}
/* prepare values */
for(i=0, buf = values;
i<nbobjs;
i++) {
for(j=0; j<nbobjs; j++, buf += MATRIX_ITEM_SIZE_MAX) {
char tmp[MATRIX_ITEM_SIZE_MAX];
len = snprintf(tmp, MATRIX_ITEM_SIZE_MAX, "%llu", (unsigned long long) matrix[i*nbobjs+j]);
if (len >= max)
max = len;
/* store it at the end of the slot in values */
memcpy(buf + (MATRIX_ITEM_SIZE_MAX - len - 1), tmp, len+1);
/* and pad with spaces at the begining */
memset(buf, ' ', MATRIX_ITEM_SIZE_MAX - len - 1);
}
}
/* now display everything */
for(i=0; i<nbobjs + 1; i++)
fprintf(output, " %s", headers + i*MATRIX_ITEM_SIZE_MAX + MATRIX_ITEM_SIZE_MAX-max-1);
fprintf(output, "\n");
for(i=0; i<nbobjs; i++) {
fprintf(output, " %s", headers + (i+1)*MATRIX_ITEM_SIZE_MAX + MATRIX_ITEM_SIZE_MAX-max-1);
for(j=0; j<nbobjs; j++)
fprintf(output, " %s", values + (i*nbobjs+j)*MATRIX_ITEM_SIZE_MAX + MATRIX_ITEM_SIZE_MAX-max-1);
fprintf(output, "\n");
}
free(headers);
free(values);
}
static __hwloc_inline int
hwloc_pid_from_number(hwloc_pid_t *pidp, int pid_number, int set_info __hwloc_attribute_unused, int verbose __hwloc_attribute_unused)
{
hwloc_pid_t pid;
#ifdef HWLOC_WIN_SYS
pid = OpenProcess(set_info ? PROCESS_SET_INFORMATION : PROCESS_QUERY_INFORMATION, FALSE, pid_number);
if (!pid) {
if (verbose) {
DWORD error = GetLastError();
char *message;
FormatMessage(FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM,
NULL, error, MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), (char *)&message, 0, NULL);
fprintf(stderr, "OpenProcess %d failed %lu: %s\n", pid_number, (unsigned long) error, message);
}
return -1;
}
#else
pid = pid_number;
#endif
*pidp = pid;
return 0;
}
static __hwloc_inline void
hwloc_lstopo_show_summary_depth(FILE *output, size_t prefixmaxlen, hwloc_topology_t topology, int depth)
{
hwloc_obj_type_t type = hwloc_get_depth_type(topology, depth);
unsigned nbobjs = hwloc_get_nbobjs_by_depth(topology, depth);
if (nbobjs) {
size_t prefixlen;
char _types[64];
const char *types;
if (depth < 0)
prefixlen = fprintf(output, "Special depth %d:", depth);
else
prefixlen = fprintf(output, "%*sdepth %d:", depth, "", depth);
if (depth < 0) {
/* use plain type, we don't want OSdev subtype since it may differ for other objects in the level */
types = hwloc_obj_type_string(type);
} else {
/* use verbose type name, those are identical for all objects on normal levels */
hwloc_obj_type_snprintf(_types, sizeof(_types), hwloc_get_obj_by_depth(topology, depth, 0), HWLOC_OBJ_SNPRINTF_FLAG_LONG_NAMES);
types = _types;
}
fprintf(output, "%*s%u %s (type #%d)\n",
(int)(prefixmaxlen-prefixlen), "",
nbobjs, types, (int) type);
}
}
static __hwloc_inline void
hwloc_lstopo_show_summary(FILE *output, hwloc_topology_t topology)
{
int topodepth = hwloc_topology_get_depth(topology);
int depth;
size_t prefixmaxlen, sdepthmaxlen;
prefixmaxlen = topodepth-1 + strlen("depth xyz: ");
sdepthmaxlen = strlen("Special depth -x: ");
if (prefixmaxlen < sdepthmaxlen)
prefixmaxlen = sdepthmaxlen;
for (depth = 0; depth < topodepth; depth++)
hwloc_lstopo_show_summary_depth(output, prefixmaxlen, topology, depth);
/* FIXME: which order? */
hwloc_lstopo_show_summary_depth(output, prefixmaxlen, topology, HWLOC_TYPE_DEPTH_NUMANODE);
hwloc_lstopo_show_summary_depth(output, prefixmaxlen, topology, HWLOC_TYPE_DEPTH_MEMCACHE);
hwloc_lstopo_show_summary_depth(output, prefixmaxlen, topology, HWLOC_TYPE_DEPTH_BRIDGE);
hwloc_lstopo_show_summary_depth(output, prefixmaxlen, topology, HWLOC_TYPE_DEPTH_PCI_DEVICE);
hwloc_lstopo_show_summary_depth(output, prefixmaxlen, topology, HWLOC_TYPE_DEPTH_OS_DEVICE);
hwloc_lstopo_show_summary_depth(output, prefixmaxlen, topology, HWLOC_TYPE_DEPTH_MISC);
}
/*************************
* Importing/exporting userdata buffers without understanding/decoding/modifying them
* Caller must putenv("HWLOC_XML_USERDATA_NOT_DECODED=1") before loading the topology.
*/
struct hwloc_utils_userdata {
char *name;
size_t length;
char *buffer; /* NULL if userdata entry in the list is not meant to be exported to XML (added by somebody else) */
struct hwloc_utils_userdata *next;
};
static __hwloc_inline void
hwloc_utils_userdata_import_cb(hwloc_topology_t topology __hwloc_attribute_unused, hwloc_obj_t obj, const char *name, const void *buffer, size_t length)
{
struct hwloc_utils_userdata *u, **up = (struct hwloc_utils_userdata **) &obj->userdata;
while (*up)
up = &((*up)->next);
*up = u = malloc(sizeof(struct hwloc_utils_userdata));
u->name = strdup(name);
u->length = length;
u->buffer = strdup(buffer);
u->next = NULL;
}
static __hwloc_inline void
hwloc_utils_userdata_export_cb(void *reserved, hwloc_topology_t topology, hwloc_obj_t obj)
{
struct hwloc_utils_userdata *u = obj->userdata;
while (u) {
if (u->buffer) /* not meant to be exported to XML (added by somebody else) */
hwloc_export_obj_userdata(reserved, topology, obj, u->name, u->buffer, u->length);
u = u->next;
}
}
/* to be called when importing from shmem with non-NULL userdata pointing to stuff in the other process */
static __hwloc_inline void
hwloc_utils_userdata_clear_recursive(hwloc_obj_t obj)
{
hwloc_obj_t child;
obj->userdata= NULL;
for_each_child(child, obj)
hwloc_utils_userdata_clear_recursive(child);
for_each_memory_child(child, obj)
hwloc_utils_userdata_clear_recursive(child);
for_each_io_child(child, obj)
hwloc_utils_userdata_clear_recursive(child);
for_each_misc_child(child, obj)
hwloc_utils_userdata_clear_recursive(child);
}
/* must be called once the caller has removed its own userdata */
static __hwloc_inline void
hwloc_utils_userdata_free(hwloc_obj_t obj)
{
struct hwloc_utils_userdata *u = obj->userdata, *next;
while (u) {
next = u->next;
assert(u->buffer);
free(u->name);
free(u->buffer);
free(u);
u = next;
}
obj->userdata = NULL;
}
/* must be called once the caller has removed its own userdata */
static __hwloc_inline void
hwloc_utils_userdata_free_recursive(hwloc_obj_t obj)
{
hwloc_obj_t child;
hwloc_utils_userdata_free(obj);
for_each_child(child, obj)
hwloc_utils_userdata_free_recursive(child);
for_each_memory_child(child, obj)
hwloc_utils_userdata_free_recursive(child);
for_each_io_child(child, obj)
hwloc_utils_userdata_free_recursive(child);
for_each_misc_child(child, obj)
hwloc_utils_userdata_free_recursive(child);
}
struct hwloc_utils_parsing_flag
{
unsigned long ulong_flag;
const char *str_flag;
};
#define HWLOC_UTILS_PARSING_FLAG(flag){ flag, #flag }
static __hwloc_inline void
hwloc_utils_parsing_flag_error(const char *err_message, struct hwloc_utils_parsing_flag possible_flags[], int len_possible_flags) {
int i;
fprintf(stderr, "Supported %s flags are substrings of:\n", err_message);
for(i = 0; i < len_possible_flags; i++) {
fprintf(stderr, " ");
fprintf(stderr, "%s", possible_flags[i].str_flag);
fprintf(stderr, "\n");
}
}
static __hwloc_inline unsigned long
hwloc_utils_parse_flags(char * str, struct hwloc_utils_parsing_flag possible_flags[], int len_possible_flags, const char * kind) {
char *ptr;
char *end;
int ul_flag;
int i;
size_t j;
unsigned long ul_flags = 0;
ul_flag = strtoul(str, &end, 0);
if(end != str && *end == '\0')
return ul_flag;
for(j=0; str[j]; j++)
str[j] = toupper(str[j]);
if(strcmp(str, "NONE") == 0)
return 0;
ptr = str;
while (ptr) {
int count = 0;
unsigned long prv_flags = ul_flags;
char *pch;
int nosuffix = 0;
/* skip separators at the beginning */
ptr += strspn(ptr, ",|+");
/* find separator after next token */
j = strcspn(ptr, " ,|+");
if (!j)
break;
if (ptr[j]) {
/* mark the end of the token */
ptr[j] = '\0';
/* mark beginning of next token */
end = ptr + j + 1;
} else {
/* no next token */
end = NULL;
}
/* '$' means matching the end of a flag */
pch = strchr(ptr, '$');
if(pch) {
nosuffix = 1;
*pch = '\0';
}
for(i = 0; i < len_possible_flags; i++) {
if(nosuffix == 1) {
/* match the end */
if(strcmp(ptr, possible_flags[i].str_flag + strlen(possible_flags[i].str_flag) - strlen(ptr)))
continue;
} else {
/* match anywhere */
if(!strstr(possible_flags[i].str_flag, ptr))
continue;
}
if(count){
fprintf(stderr, "Duplicate match for %s flag `%s'.\n", kind, ptr);
hwloc_utils_parsing_flag_error(kind, possible_flags, len_possible_flags);
return (unsigned long) - 1;
}
ul_flags |= possible_flags[i].ulong_flag;
count++;
}
if(prv_flags == ul_flags) {
fprintf(stderr, "Failed to parse %s flag `%s'.\n", kind, ptr);
hwloc_utils_parsing_flag_error(kind, possible_flags, len_possible_flags);
return (unsigned long) - 1;
}
ptr = end;
}
return ul_flags;
}
static __hwloc_inline hwloc_memattr_id_t
hwloc_utils_parse_memattr_name(hwloc_topology_t topo, const char *str)
{
const char *name;
hwloc_memattr_id_t id;
int err;
/* try by name, case insensitive */
for(id=0; ; id++) {
err = hwloc_memattr_get_name(topo, id, &name);
if (err < 0)
break;
if (!strcasecmp(name, str))
return id;
}
/* try by id */
if (*str < '0' || *str > '9')
return (hwloc_memattr_id_t) -1;
id = atoi(str);
err = hwloc_memattr_get_name(topo, id, &name);
if (err < 0)
return (hwloc_memattr_id_t) -1;
else
return id;
}
static __hwloc_inline int
hwloc_utils_get_best_node_in_array_by_memattr(hwloc_topology_t topology, hwloc_memattr_id_t id,
unsigned nbnodes, hwloc_obj_t *nodes,
struct hwloc_location *initiator)
{
unsigned nbtgs, i, j;
hwloc_obj_t *tgs;
int best;
hwloc_uint64_t *values, bestvalue;
unsigned long mflags;
int err;
err = hwloc_memattr_get_flags(topology, id, &mflags);
if (err < 0)
goto out;
nbtgs = 0;
err = hwloc_memattr_get_targets(topology, id, initiator, 0, &nbtgs, NULL, NULL);
if (err < 0)
goto out;
tgs = malloc(nbtgs * sizeof(*tgs));
values = malloc(nbtgs * sizeof(*values));
if (!tgs || !values)
goto out_with_arrays;
err = hwloc_memattr_get_targets(topology, id, initiator, 0, &nbtgs, tgs, values);
if (err < 0)
goto out_with_arrays;
best = -1;
bestvalue = 0;
for(i=0; i<nbnodes; i++) {
for(j=0; j<nbtgs; j++)
if (tgs[j] == nodes[i])
break;
if (j==nbtgs)
/* no target info for this node */
continue;
if (best == -1) {
best = i;
bestvalue = values[j];
} else if (mflags & HWLOC_MEMATTR_FLAG_HIGHER_FIRST) {
if (values[j] > bestvalue) {
best = i;
bestvalue = values[j];
}
} else {
assert(mflags & HWLOC_MEMATTR_FLAG_LOWER_FIRST);
if (values[j] < bestvalue) {
best = i;
bestvalue = values[j];
}
}
}
free(tgs);
free(values);
return best;
out_with_arrays:
free(tgs);
free(values);
out:
return -1;
}
static __hwloc_inline int
hwloc_utils_get_best_node_in_nodeset_by_memattr(hwloc_topology_t topology, hwloc_memattr_id_t id,
hwloc_nodeset_t nodeset,
struct hwloc_location *initiator)
{
unsigned nbtgs, i, j;
hwloc_obj_t *tgs;
int best;
hwloc_uint64_t *values, bestvalue;
unsigned long mflags;
int err;
err = hwloc_memattr_get_flags(topology, id, &mflags);
if (err < 0)
goto out;
nbtgs = 0;
err = hwloc_memattr_get_targets(topology, id, initiator, 0, &nbtgs, NULL, NULL);
if (err < 0)
goto out;
tgs = malloc(nbtgs * sizeof(*tgs));
values = malloc(nbtgs * sizeof(*values));
if (!tgs || !values)
goto out_with_arrays;
err = hwloc_memattr_get_targets(topology, id, initiator, 0, &nbtgs, tgs, values);
if (err < 0)
goto out_with_arrays;
best = -1;
bestvalue = 0;
hwloc_bitmap_foreach_begin(i, nodeset) {
for(j=0; j<nbtgs; j++)
if (tgs[j]->os_index == i)
break;
if (j==nbtgs)
/* no target info for this node */
continue;
if (best == -1) {
best = i;
bestvalue = values[j];
} else if (mflags & HWLOC_MEMATTR_FLAG_HIGHER_FIRST) {
if (values[j] > bestvalue) {
best = i;
bestvalue = values[j];
}
} else {
assert(mflags & HWLOC_MEMATTR_FLAG_LOWER_FIRST);
if (values[j] < bestvalue) {
best = i;
bestvalue = values[j];
}
}
} hwloc_bitmap_foreach_end();
if (best == -1)
hwloc_bitmap_zero(nodeset);
else
hwloc_bitmap_only(nodeset, best);
free(tgs);
free(values);
return 0;
out_with_arrays:
free(tgs);
free(values);
out:
return -1;
}
static __hwloc_inline unsigned long
hwloc_utils_parse_restrict_flags(char * str){
struct hwloc_utils_parsing_flag possible_flags[] = {
HWLOC_UTILS_PARSING_FLAG(HWLOC_RESTRICT_FLAG_REMOVE_CPULESS),
HWLOC_UTILS_PARSING_FLAG(HWLOC_RESTRICT_FLAG_BYNODESET),
HWLOC_UTILS_PARSING_FLAG(HWLOC_RESTRICT_FLAG_REMOVE_MEMLESS),
HWLOC_UTILS_PARSING_FLAG(HWLOC_RESTRICT_FLAG_ADAPT_MISC),
HWLOC_UTILS_PARSING_FLAG(HWLOC_RESTRICT_FLAG_ADAPT_IO)
};
return hwloc_utils_parse_flags(str, possible_flags, (int) sizeof(possible_flags) / sizeof(possible_flags[0]), "restrict");
}
static __hwloc_inline unsigned long
hwloc_utils_parse_topology_flags(char * str) {
struct hwloc_utils_parsing_flag possible_flags[] = {
HWLOC_UTILS_PARSING_FLAG(HWLOC_TOPOLOGY_FLAG_INCLUDE_DISALLOWED),
HWLOC_UTILS_PARSING_FLAG(HWLOC_TOPOLOGY_FLAG_IS_THISSYSTEM),
HWLOC_UTILS_PARSING_FLAG(HWLOC_TOPOLOGY_FLAG_THISSYSTEM_ALLOWED_RESOURCES),
HWLOC_UTILS_PARSING_FLAG(HWLOC_TOPOLOGY_FLAG_IMPORT_SUPPORT),
HWLOC_UTILS_PARSING_FLAG(HWLOC_TOPOLOGY_FLAG_RESTRICT_TO_CPUBINDING),
HWLOC_UTILS_PARSING_FLAG(HWLOC_TOPOLOGY_FLAG_RESTRICT_TO_MEMBINDING),
HWLOC_UTILS_PARSING_FLAG(HWLOC_TOPOLOGY_FLAG_DONT_CHANGE_BINDING),
HWLOC_UTILS_PARSING_FLAG(HWLOC_TOPOLOGY_FLAG_NO_DISTANCES),
HWLOC_UTILS_PARSING_FLAG(HWLOC_TOPOLOGY_FLAG_NO_MEMATTRS),
HWLOC_UTILS_PARSING_FLAG(HWLOC_TOPOLOGY_FLAG_NO_CPUKINDS)
};
return hwloc_utils_parse_flags(str, possible_flags, (int) sizeof(possible_flags) / sizeof(possible_flags[0]), "topology");
}
static __hwloc_inline unsigned long
hwloc_utils_parse_allow_flags(char * str) {
struct hwloc_utils_parsing_flag possible_flags[] = {
HWLOC_UTILS_PARSING_FLAG(HWLOC_ALLOW_FLAG_ALL),
HWLOC_UTILS_PARSING_FLAG(HWLOC_ALLOW_FLAG_LOCAL_RESTRICTIONS),
HWLOC_UTILS_PARSING_FLAG(HWLOC_ALLOW_FLAG_CUSTOM)
};
return hwloc_utils_parse_flags(str, possible_flags, (int) sizeof(possible_flags) / sizeof(possible_flags[0]), "allow");
}
static __hwloc_inline unsigned long
hwloc_utils_parse_export_synthetic_flags(char * str) {
struct hwloc_utils_parsing_flag possible_flags[] = {
HWLOC_UTILS_PARSING_FLAG(HWLOC_TOPOLOGY_EXPORT_SYNTHETIC_FLAG_NO_EXTENDED_TYPES),
HWLOC_UTILS_PARSING_FLAG(HWLOC_TOPOLOGY_EXPORT_SYNTHETIC_FLAG_NO_ATTRS),
HWLOC_UTILS_PARSING_FLAG(HWLOC_TOPOLOGY_EXPORT_SYNTHETIC_FLAG_V1),
HWLOC_UTILS_PARSING_FLAG(HWLOC_TOPOLOGY_EXPORT_SYNTHETIC_FLAG_IGNORE_MEMORY)
};
return hwloc_utils_parse_flags(str, possible_flags, (int) sizeof(possible_flags) / sizeof(possible_flags[0]), "synthetic");
}
static __hwloc_inline unsigned long
hwloc_utils_parse_export_xml_flags(char * str) {
struct hwloc_utils_parsing_flag possible_flags[] = {
HWLOC_UTILS_PARSING_FLAG(HWLOC_TOPOLOGY_EXPORT_XML_FLAG_V2)
};
return hwloc_utils_parse_flags(str, possible_flags, (int) sizeof(possible_flags) / sizeof(possible_flags[0]), "xml");
}
static __hwloc_inline unsigned long
hwloc_utils_parse_distances_add_flags(char * str) {
struct hwloc_utils_parsing_flag possible_flags[] = {
HWLOC_UTILS_PARSING_FLAG(HWLOC_DISTANCES_ADD_FLAG_GROUP),
HWLOC_UTILS_PARSING_FLAG(HWLOC_DISTANCES_ADD_FLAG_GROUP_INACCURATE)
};
return hwloc_utils_parse_flags(str, possible_flags, (int) sizeof(possible_flags) / sizeof(possible_flags[0]), "distances_add");
}
static __hwloc_inline unsigned long
hwloc_utils_parse_memattr_flags(char *str) {
struct hwloc_utils_parsing_flag possible_flags[] = {
HWLOC_UTILS_PARSING_FLAG(HWLOC_MEMATTR_FLAG_HIGHER_FIRST),
HWLOC_UTILS_PARSING_FLAG(HWLOC_MEMATTR_FLAG_LOWER_FIRST),
HWLOC_UTILS_PARSING_FLAG(HWLOC_MEMATTR_FLAG_NEED_INITIATOR)
};
return hwloc_utils_parse_flags(str, possible_flags, (int) sizeof(possible_flags) / sizeof(possible_flags[0]), "memattr");
}
static __hwloc_inline unsigned long
hwloc_utils_parse_local_numanode_flags(char *str) {
struct hwloc_utils_parsing_flag possible_flags[] = {
HWLOC_UTILS_PARSING_FLAG(HWLOC_LOCAL_NUMANODE_FLAG_LARGER_LOCALITY),
HWLOC_UTILS_PARSING_FLAG(HWLOC_LOCAL_NUMANODE_FLAG_SMALLER_LOCALITY),