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windows_processor_groups.c
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windows_processor_groups.c
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/*
* Copyright © 2021 Inria. All rights reserved.
* See COPYING in top-level directory.
*/
#include "private/autogen/config.h"
#include "hwloc.h"
#include "hwloc/windows.h"
#include <assert.h>
int main(void)
{
hwloc_topology_t topology;
hwloc_bitmap_t set;
int nr, i, err;
char *s;
hwloc_topology_init(&topology);
hwloc_topology_load(topology);
set = hwloc_bitmap_alloc();
assert(set);
/* check invalid flag */
nr = hwloc_windows_get_nr_processor_groups(topology, 1);
assert(nr < 0);
assert(errno == EINVAL);
nr = hwloc_windows_get_nr_processor_groups(topology, 0);
assert(nr >= 1);
printf("found %d groups\n", nr);
/* check invalid flag */
err = hwloc_windows_get_processor_group_cpuset(topology, 0, set, 1);
assert(err < 0);
assert(errno == EINVAL);
/* check invalid index */
err = hwloc_windows_get_processor_group_cpuset(topology, nr, set, 0);
assert(err < 0);
assert(errno == ENOENT);
for(i=0; i<nr; i++) {
hwloc_bitmap_zero(set);
err = hwloc_windows_get_processor_group_cpuset(topology, i, set, 0);
assert(err == 0);
assert(!hwloc_bitmap_iszero(set));
err = hwloc_bitmap_asprintf(&s, set);
assert(err >= 0);
printf("processor group #%d has cpuset %s\n", i, s);
free(s);
}
hwloc_bitmap_free(set);
hwloc_topology_destroy(topology);
return 0;
}