bitmap.h
/*
* SPDX-License-Identifier: BSD-3-Clause
* Copyright © 2009 CNRS
* Copyright © 2009-2025 Inria. All rights reserved.
* Copyright © 2009-2012 Université Bordeaux
* Copyright © 2009-2011 Cisco Systems, Inc. All rights reserved.
* See COPYING in top-level directory.
*/
#ifndef HWLOC_BITMAP_H
#define HWLOC_BITMAP_H
#include "hwloc/autogen/config.h"
#include <assert.h>
#ifdef __cplusplus
extern "C" {
#endif
typedef struct hwloc_bitmap_s * hwloc_bitmap_t;
typedef const struct hwloc_bitmap_s * hwloc_const_bitmap_t;
/*
* Bitmap allocation, freeing and copying.
*/
HWLOC_DECLSPEC hwloc_bitmap_t hwloc_bitmap_alloc(void) __hwloc_attribute_malloc;
HWLOC_DECLSPEC hwloc_bitmap_t hwloc_bitmap_alloc_full(void) __hwloc_attribute_malloc;
HWLOC_DECLSPEC void hwloc_bitmap_free(hwloc_bitmap_t bitmap);
HWLOC_DECLSPEC hwloc_bitmap_t hwloc_bitmap_dup(hwloc_const_bitmap_t bitmap) __hwloc_attribute_malloc;
HWLOC_DECLSPEC int hwloc_bitmap_copy(hwloc_bitmap_t dst, hwloc_const_bitmap_t src);
/*
* Bitmap/String Conversion
*/
HWLOC_DECLSPEC int hwloc_bitmap_snprintf(char * __hwloc_restrict buf, size_t buflen, hwloc_const_bitmap_t bitmap);
HWLOC_DECLSPEC int hwloc_bitmap_asprintf(char ** strp, hwloc_const_bitmap_t bitmap);
HWLOC_DECLSPEC int hwloc_bitmap_sscanf(hwloc_bitmap_t bitmap, const char * __hwloc_restrict string);
HWLOC_DECLSPEC int hwloc_bitmap_list_snprintf(char * __hwloc_restrict buf, size_t buflen, hwloc_const_bitmap_t bitmap);
HWLOC_DECLSPEC int hwloc_bitmap_list_asprintf(char ** strp, hwloc_const_bitmap_t bitmap);
HWLOC_DECLSPEC int hwloc_bitmap_list_sscanf(hwloc_bitmap_t bitmap, const char * __hwloc_restrict string);
HWLOC_DECLSPEC int hwloc_bitmap_taskset_snprintf(char * __hwloc_restrict buf, size_t buflen, hwloc_const_bitmap_t bitmap);
HWLOC_DECLSPEC int hwloc_bitmap_taskset_asprintf(char ** strp, hwloc_const_bitmap_t bitmap);
HWLOC_DECLSPEC int hwloc_bitmap_taskset_sscanf(hwloc_bitmap_t bitmap, const char * __hwloc_restrict string);
/*
* Building bitmaps.
*/
HWLOC_DECLSPEC void hwloc_bitmap_zero(hwloc_bitmap_t bitmap);
HWLOC_DECLSPEC void hwloc_bitmap_fill(hwloc_bitmap_t bitmap);
HWLOC_DECLSPEC int hwloc_bitmap_only(hwloc_bitmap_t bitmap, unsigned id);
HWLOC_DECLSPEC int hwloc_bitmap_allbut(hwloc_bitmap_t bitmap, unsigned id);
HWLOC_DECLSPEC int hwloc_bitmap_from_ulong(hwloc_bitmap_t bitmap, unsigned long mask);
HWLOC_DECLSPEC int hwloc_bitmap_from_ith_ulong(hwloc_bitmap_t bitmap, unsigned i, unsigned long mask);
HWLOC_DECLSPEC int hwloc_bitmap_from_ulongs(hwloc_bitmap_t bitmap, unsigned nr, const unsigned long *masks);
/*
* Modifying bitmaps.
*/
HWLOC_DECLSPEC int hwloc_bitmap_set(hwloc_bitmap_t bitmap, unsigned id);
HWLOC_DECLSPEC int hwloc_bitmap_set_range(hwloc_bitmap_t bitmap, unsigned begin, int end);
HWLOC_DECLSPEC int hwloc_bitmap_set_ith_ulong(hwloc_bitmap_t bitmap, unsigned i, unsigned long mask);
HWLOC_DECLSPEC int hwloc_bitmap_clr(hwloc_bitmap_t bitmap, unsigned id);
HWLOC_DECLSPEC int hwloc_bitmap_clr_range(hwloc_bitmap_t bitmap, unsigned begin, int end);
HWLOC_DECLSPEC int hwloc_bitmap_singlify(hwloc_bitmap_t bitmap);
/*
* Consulting bitmaps.
*/
HWLOC_DECLSPEC unsigned long hwloc_bitmap_to_ulong(hwloc_const_bitmap_t bitmap) __hwloc_attribute_pure;
HWLOC_DECLSPEC unsigned long hwloc_bitmap_to_ith_ulong(hwloc_const_bitmap_t bitmap, unsigned i) __hwloc_attribute_pure;
HWLOC_DECLSPEC int hwloc_bitmap_to_ulongs(hwloc_const_bitmap_t bitmap, unsigned nr, unsigned long *masks);
HWLOC_DECLSPEC int hwloc_bitmap_nr_ulongs(hwloc_const_bitmap_t bitmap) __hwloc_attribute_pure;
HWLOC_DECLSPEC int hwloc_bitmap_isset(hwloc_const_bitmap_t bitmap, unsigned id) __hwloc_attribute_pure;
HWLOC_DECLSPEC int hwloc_bitmap_iszero(hwloc_const_bitmap_t bitmap) __hwloc_attribute_pure;
HWLOC_DECLSPEC int hwloc_bitmap_isfull(hwloc_const_bitmap_t bitmap) __hwloc_attribute_pure;
HWLOC_DECLSPEC int hwloc_bitmap_first(hwloc_const_bitmap_t bitmap) __hwloc_attribute_pure;
HWLOC_DECLSPEC int hwloc_bitmap_next(hwloc_const_bitmap_t bitmap, int prev) __hwloc_attribute_pure;
HWLOC_DECLSPEC int hwloc_bitmap_last(hwloc_const_bitmap_t bitmap) __hwloc_attribute_pure;
HWLOC_DECLSPEC int hwloc_bitmap_weight(hwloc_const_bitmap_t bitmap) __hwloc_attribute_pure;
HWLOC_DECLSPEC int hwloc_bitmap_first_unset(hwloc_const_bitmap_t bitmap) __hwloc_attribute_pure;
HWLOC_DECLSPEC int hwloc_bitmap_next_unset(hwloc_const_bitmap_t bitmap, int prev) __hwloc_attribute_pure;
HWLOC_DECLSPEC int hwloc_bitmap_last_unset(hwloc_const_bitmap_t bitmap) __hwloc_attribute_pure;
#define hwloc_bitmap_foreach_begin(id, bitmap) \
do { \
assert(hwloc_bitmap_weight(bitmap) != -1); \
for (id = hwloc_bitmap_first(bitmap); \
(unsigned) id != (unsigned) -1; \
id = hwloc_bitmap_next(bitmap, id)) {
#define hwloc_bitmap_foreach_end() \
} \
} while (0)
/*
* Combining bitmaps.
*/
HWLOC_DECLSPEC int hwloc_bitmap_or (hwloc_bitmap_t res, hwloc_const_bitmap_t bitmap1, hwloc_const_bitmap_t bitmap2);
HWLOC_DECLSPEC int hwloc_bitmap_and (hwloc_bitmap_t res, hwloc_const_bitmap_t bitmap1, hwloc_const_bitmap_t bitmap2);
HWLOC_DECLSPEC int hwloc_bitmap_andnot (hwloc_bitmap_t res, hwloc_const_bitmap_t bitmap1, hwloc_const_bitmap_t bitmap2);
HWLOC_DECLSPEC int hwloc_bitmap_xor (hwloc_bitmap_t res, hwloc_const_bitmap_t bitmap1, hwloc_const_bitmap_t bitmap2);
HWLOC_DECLSPEC int hwloc_bitmap_not (hwloc_bitmap_t res, hwloc_const_bitmap_t bitmap);
/*
* Comparing bitmaps.
*/
HWLOC_DECLSPEC int hwloc_bitmap_intersects (hwloc_const_bitmap_t bitmap1, hwloc_const_bitmap_t bitmap2) __hwloc_attribute_pure;
HWLOC_DECLSPEC int hwloc_bitmap_isincluded (hwloc_const_bitmap_t sub_bitmap, hwloc_const_bitmap_t super_bitmap) __hwloc_attribute_pure;
HWLOC_DECLSPEC int hwloc_bitmap_isequal (hwloc_const_bitmap_t bitmap1, hwloc_const_bitmap_t bitmap2) __hwloc_attribute_pure;
HWLOC_DECLSPEC int hwloc_bitmap_compare_first(hwloc_const_bitmap_t bitmap1, hwloc_const_bitmap_t bitmap2) __hwloc_attribute_pure;
HWLOC_DECLSPEC int hwloc_bitmap_compare(hwloc_const_bitmap_t bitmap1, hwloc_const_bitmap_t bitmap2) __hwloc_attribute_pure;
#ifdef __cplusplus
} /* extern "C" */
#endif
#endif /* HWLOC_BITMAP_H */
hwloc_bitmap_weight
int hwloc_bitmap_weight(hwloc_const_bitmap_t bitmap)
Compute the "weight" of bitmap bitmap (i.e., number of indexes that are in the bitmap).
hwloc_bitmap_alloc_full
hwloc_bitmap_t hwloc_bitmap_alloc_full(void)
Allocate a new full bitmap.
hwloc_bitmap_isincluded
int hwloc_bitmap_isincluded(hwloc_const_bitmap_t sub_bitmap, hwloc_const_bitmap_t super_bitmap)
Test whether bitmap sub_bitmap is part of bitmap super_bitmap.
hwloc_bitmap_set
int hwloc_bitmap_set(hwloc_bitmap_t bitmap, unsigned id)
Add index id in bitmap bitmap.
hwloc_bitmap_sscanf
int hwloc_bitmap_sscanf(hwloc_bitmap_t bitmap, const char *restrict string)
Parse a bitmap string as the default hwloc format and stores it in bitmap bitmap.
hwloc_bitmap_allbut
int hwloc_bitmap_allbut(hwloc_bitmap_t bitmap, unsigned id)
Fill the bitmap and clear the index id.
hwloc_bitmap_fill
void hwloc_bitmap_fill(hwloc_bitmap_t bitmap)
Fill bitmap bitmap with all possible indexes (even if those objects don't exist or are otherwise unav...
hwloc_bitmap_asprintf
int hwloc_bitmap_asprintf(char **strp, hwloc_const_bitmap_t bitmap)
Stringify a bitmap into a newly allocated string in the default hwloc format.
hwloc_bitmap_only
int hwloc_bitmap_only(hwloc_bitmap_t bitmap, unsigned id)
Empty the bitmap bitmap and add bit id.
hwloc_bitmap_isset
int hwloc_bitmap_isset(hwloc_const_bitmap_t bitmap, unsigned id)
Test whether index id is part of bitmap bitmap.
hwloc_bitmap_or
int hwloc_bitmap_or(hwloc_bitmap_t res, hwloc_const_bitmap_t bitmap1, hwloc_const_bitmap_t bitmap2)
Or bitmaps bitmap1 and bitmap2 and store the result in bitmap res.
hwloc_bitmap_compare
int hwloc_bitmap_compare(hwloc_const_bitmap_t bitmap1, hwloc_const_bitmap_t bitmap2)
Compare bitmaps bitmap1 and bitmap2 in lexicographic order.
hwloc_bitmap_free
void hwloc_bitmap_free(hwloc_bitmap_t bitmap)
Free bitmap bitmap.
hwloc_bitmap_xor
int hwloc_bitmap_xor(hwloc_bitmap_t res, hwloc_const_bitmap_t bitmap1, hwloc_const_bitmap_t bitmap2)
Xor bitmaps bitmap1 and bitmap2 and store the result in bitmap res.
hwloc_bitmap_isequal
int hwloc_bitmap_isequal(hwloc_const_bitmap_t bitmap1, hwloc_const_bitmap_t bitmap2)
Test whether bitmap bitmap1 is equal to bitmap bitmap2.
hwloc_bitmap_taskset_asprintf
int hwloc_bitmap_taskset_asprintf(char **strp, hwloc_const_bitmap_t bitmap)
Stringify a bitmap into a newly allocated taskset-specific string.
hwloc_bitmap_list_asprintf
int hwloc_bitmap_list_asprintf(char **strp, hwloc_const_bitmap_t bitmap)
Stringify a bitmap into a newly allocated list string.
hwloc_bitmap_list_snprintf
int hwloc_bitmap_list_snprintf(char *restrict buf, size_t buflen, hwloc_const_bitmap_t bitmap)
Stringify a bitmap in the list format.
hwloc_bitmap_last
int hwloc_bitmap_last(hwloc_const_bitmap_t bitmap)
Compute the last index (most significant bit) in bitmap bitmap.
hwloc_bitmap_set_ith_ulong
int hwloc_bitmap_set_ith_ulong(hwloc_bitmap_t bitmap, unsigned i, unsigned long mask)
Replace i -th subset of bitmap bitmap with unsigned long mask.
hwloc_bitmap_first
int hwloc_bitmap_first(hwloc_const_bitmap_t bitmap)
Compute the first index (least significant bit) in bitmap bitmap.
hwloc_bitmap_last_unset
int hwloc_bitmap_last_unset(hwloc_const_bitmap_t bitmap)
Compute the last unset index (most significant bit) in bitmap bitmap.
hwloc_bitmap_from_ith_ulong
int hwloc_bitmap_from_ith_ulong(hwloc_bitmap_t bitmap, unsigned i, unsigned long mask)
Setup bitmap bitmap from unsigned long mask used as i -th subset.
hwloc_bitmap_taskset_sscanf
int hwloc_bitmap_taskset_sscanf(hwloc_bitmap_t bitmap, const char *restrict string)
Parse a taskset-specific bitmap string and stores it in bitmap bitmap.
hwloc_bitmap_iszero
int hwloc_bitmap_iszero(hwloc_const_bitmap_t bitmap)
Test whether bitmap bitmap is empty.
hwloc_bitmap_taskset_snprintf
int hwloc_bitmap_taskset_snprintf(char *restrict buf, size_t buflen, hwloc_const_bitmap_t bitmap)
Stringify a bitmap in the taskset-specific format.
hwloc_bitmap_isfull
int hwloc_bitmap_isfull(hwloc_const_bitmap_t bitmap)
Test whether bitmap bitmap is completely full.
hwloc_bitmap_and
int hwloc_bitmap_and(hwloc_bitmap_t res, hwloc_const_bitmap_t bitmap1, hwloc_const_bitmap_t bitmap2)
And bitmaps bitmap1 and bitmap2 and store the result in bitmap res.
hwloc_bitmap_copy
int hwloc_bitmap_copy(hwloc_bitmap_t dst, hwloc_const_bitmap_t src)
Copy the contents of bitmap src into the already allocated bitmap dst.
hwloc_bitmap_andnot
int hwloc_bitmap_andnot(hwloc_bitmap_t res, hwloc_const_bitmap_t bitmap1, hwloc_const_bitmap_t bitmap2)
And bitmap bitmap1 and the negation of bitmap2 and store the result in bitmap res.
hwloc_bitmap_clr_range
int hwloc_bitmap_clr_range(hwloc_bitmap_t bitmap, unsigned begin, int end)
Remove indexes from begin to end in bitmap bitmap.
hwloc_bitmap_not
int hwloc_bitmap_not(hwloc_bitmap_t res, hwloc_const_bitmap_t bitmap)
Negate bitmap bitmap and store the result in bitmap res.
hwloc_bitmap_snprintf
int hwloc_bitmap_snprintf(char *restrict buf, size_t buflen, hwloc_const_bitmap_t bitmap)
Stringify a bitmap in the default hwloc format.
hwloc_bitmap_next_unset
int hwloc_bitmap_next_unset(hwloc_const_bitmap_t bitmap, int prev)
Compute the next unset index in bitmap bitmap which is after index prev.
hwloc_bitmap_set_range
int hwloc_bitmap_set_range(hwloc_bitmap_t bitmap, unsigned begin, int end)
Add indexes from begin to end in bitmap bitmap.
hwloc_bitmap_compare_first
int hwloc_bitmap_compare_first(hwloc_const_bitmap_t bitmap1, hwloc_const_bitmap_t bitmap2)
Compare bitmaps bitmap1 and bitmap2 using their lowest index.
hwloc_bitmap_t
struct hwloc_bitmap_s * hwloc_bitmap_t
Set of bits represented as an opaque pointer to an internal bitmap.
Definition bitmap.h:70
hwloc_bitmap_singlify
int hwloc_bitmap_singlify(hwloc_bitmap_t bitmap)
Keep a single index among those set in bitmap bitmap.
hwloc_bitmap_zero
void hwloc_bitmap_zero(hwloc_bitmap_t bitmap)
Empty the bitmap bitmap.
hwloc_bitmap_next
int hwloc_bitmap_next(hwloc_const_bitmap_t bitmap, int prev)
Compute the next index in bitmap bitmap which is after index prev.
hwloc_bitmap_to_ulong
unsigned long hwloc_bitmap_to_ulong(hwloc_const_bitmap_t bitmap)
Convert the beginning part of bitmap bitmap into unsigned long mask.
hwloc_bitmap_from_ulongs
int hwloc_bitmap_from_ulongs(hwloc_bitmap_t bitmap, unsigned nr, const unsigned long *masks)
Setup bitmap bitmap from unsigned longs masks used as first nr subsets.
hwloc_bitmap_nr_ulongs
int hwloc_bitmap_nr_ulongs(hwloc_const_bitmap_t bitmap)
Return the number of unsigned longs required for storing bitmap bitmap entirely.
hwloc_bitmap_to_ith_ulong
unsigned long hwloc_bitmap_to_ith_ulong(hwloc_const_bitmap_t bitmap, unsigned i)
Convert the i -th subset of bitmap bitmap into unsigned long mask.
hwloc_bitmap_to_ulongs
int hwloc_bitmap_to_ulongs(hwloc_const_bitmap_t bitmap, unsigned nr, unsigned long *masks)
Convert the first nr subsets of bitmap bitmap into the array of nr unsigned long masks.
hwloc_bitmap_from_ulong
int hwloc_bitmap_from_ulong(hwloc_bitmap_t bitmap, unsigned long mask)
Setup bitmap bitmap from unsigned long mask.
hwloc_bitmap_alloc
hwloc_bitmap_t hwloc_bitmap_alloc(void)
Allocate a new empty bitmap.
hwloc_bitmap_first_unset
int hwloc_bitmap_first_unset(hwloc_const_bitmap_t bitmap)
Compute the first unset index (least significant bit) in bitmap bitmap.
hwloc_bitmap_dup
hwloc_bitmap_t hwloc_bitmap_dup(hwloc_const_bitmap_t bitmap)
Duplicate bitmap bitmap by allocating a new bitmap and copying bitmap contents.
hwloc_const_bitmap_t
const struct hwloc_bitmap_s * hwloc_const_bitmap_t
a non-modifiable hwloc_bitmap_t
Definition bitmap.h:72
hwloc_bitmap_intersects
int hwloc_bitmap_intersects(hwloc_const_bitmap_t bitmap1, hwloc_const_bitmap_t bitmap2)
Test whether bitmaps bitmap1 and bitmap2 intersects.
hwloc_bitmap_clr
int hwloc_bitmap_clr(hwloc_bitmap_t bitmap, unsigned id)
Remove index id from bitmap bitmap.
hwloc_bitmap_list_sscanf
int hwloc_bitmap_list_sscanf(hwloc_bitmap_t bitmap, const char *restrict string)
Parse a list string and stores it in bitmap bitmap.