Hardware Locality (hwloc)  master-20250612.1317.gitd03ae8e67
bitmap.h
1 /*
2  * Copyright © 2009 CNRS
3  * Copyright © 2009-2024 Inria. All rights reserved.
4  * Copyright © 2009-2012 Université Bordeaux
5  * Copyright © 2009-2011 Cisco Systems, Inc. All rights reserved.
6  * See COPYING in top-level directory.
7  */
8 
13 #ifndef HWLOC_BITMAP_H
14 #define HWLOC_BITMAP_H
15 
16 #include "hwloc/autogen/config.h"
17 
18 #include <assert.h>
19 
20 
21 #ifdef __cplusplus
22 extern "C" {
23 #endif
24 
25 
69 typedef struct hwloc_bitmap_s * hwloc_bitmap_t;
71 typedef const struct hwloc_bitmap_s * hwloc_const_bitmap_t;
72 
73 
74 /*
75  * Bitmap allocation, freeing and copying.
76  */
77 
85 HWLOC_DECLSPEC hwloc_bitmap_t hwloc_bitmap_alloc(void) __hwloc_attribute_malloc;
86 
94 HWLOC_DECLSPEC hwloc_bitmap_t hwloc_bitmap_alloc_full(void) __hwloc_attribute_malloc;
95 
100 HWLOC_DECLSPEC void hwloc_bitmap_free(hwloc_bitmap_t bitmap);
101 
106 HWLOC_DECLSPEC hwloc_bitmap_t hwloc_bitmap_dup(hwloc_const_bitmap_t bitmap) __hwloc_attribute_malloc;
107 
109 HWLOC_DECLSPEC int hwloc_bitmap_copy(hwloc_bitmap_t dst, hwloc_const_bitmap_t src);
110 
111 
112 /*
113  * Bitmap/String Conversion
114  */
115 
131 HWLOC_DECLSPEC int hwloc_bitmap_snprintf(char * __hwloc_restrict buf, size_t buflen, hwloc_const_bitmap_t bitmap);
132 
143 HWLOC_DECLSPEC int hwloc_bitmap_asprintf(char ** strp, hwloc_const_bitmap_t bitmap);
144 
155 HWLOC_DECLSPEC int hwloc_bitmap_sscanf(hwloc_bitmap_t bitmap, const char * __hwloc_restrict string);
156 
174 HWLOC_DECLSPEC int hwloc_bitmap_list_snprintf(char * __hwloc_restrict buf, size_t buflen, hwloc_const_bitmap_t bitmap);
175 
188 HWLOC_DECLSPEC int hwloc_bitmap_list_asprintf(char ** strp, hwloc_const_bitmap_t bitmap);
189 
201 HWLOC_DECLSPEC int hwloc_bitmap_list_sscanf(hwloc_bitmap_t bitmap, const char * __hwloc_restrict string);
202 
219 HWLOC_DECLSPEC int hwloc_bitmap_taskset_snprintf(char * __hwloc_restrict buf, size_t buflen, hwloc_const_bitmap_t bitmap);
220 
232 HWLOC_DECLSPEC int hwloc_bitmap_taskset_asprintf(char ** strp, hwloc_const_bitmap_t bitmap);
233 
245 HWLOC_DECLSPEC int hwloc_bitmap_taskset_sscanf(hwloc_bitmap_t bitmap, const char * __hwloc_restrict string);
246 
247 
248 /*
249  * Building bitmaps.
250  */
251 
253 HWLOC_DECLSPEC void hwloc_bitmap_zero(hwloc_bitmap_t bitmap);
254 
256 HWLOC_DECLSPEC void hwloc_bitmap_fill(hwloc_bitmap_t bitmap);
257 
259 HWLOC_DECLSPEC int hwloc_bitmap_only(hwloc_bitmap_t bitmap, unsigned id);
260 
262 HWLOC_DECLSPEC int hwloc_bitmap_allbut(hwloc_bitmap_t bitmap, unsigned id);
263 
265 HWLOC_DECLSPEC int hwloc_bitmap_from_ulong(hwloc_bitmap_t bitmap, unsigned long mask);
266 
268 HWLOC_DECLSPEC int hwloc_bitmap_from_ith_ulong(hwloc_bitmap_t bitmap, unsigned i, unsigned long mask);
269 
271 HWLOC_DECLSPEC int hwloc_bitmap_from_ulongs(hwloc_bitmap_t bitmap, unsigned nr, const unsigned long *masks);
272 
273 
274 /*
275  * Modifying bitmaps.
276  */
277 
279 HWLOC_DECLSPEC int hwloc_bitmap_set(hwloc_bitmap_t bitmap, unsigned id);
280 
285 HWLOC_DECLSPEC int hwloc_bitmap_set_range(hwloc_bitmap_t bitmap, unsigned begin, int end);
286 
288 HWLOC_DECLSPEC int hwloc_bitmap_set_ith_ulong(hwloc_bitmap_t bitmap, unsigned i, unsigned long mask);
289 
291 HWLOC_DECLSPEC int hwloc_bitmap_clr(hwloc_bitmap_t bitmap, unsigned id);
292 
297 HWLOC_DECLSPEC int hwloc_bitmap_clr_range(hwloc_bitmap_t bitmap, unsigned begin, int end);
298 
318 HWLOC_DECLSPEC int hwloc_bitmap_singlify(hwloc_bitmap_t bitmap);
319 
320 
321 /*
322  * Consulting bitmaps.
323  */
324 
326 HWLOC_DECLSPEC unsigned long hwloc_bitmap_to_ulong(hwloc_const_bitmap_t bitmap) __hwloc_attribute_pure;
327 
329 HWLOC_DECLSPEC unsigned long hwloc_bitmap_to_ith_ulong(hwloc_const_bitmap_t bitmap, unsigned i) __hwloc_attribute_pure;
330 
337 HWLOC_DECLSPEC int hwloc_bitmap_to_ulongs(hwloc_const_bitmap_t bitmap, unsigned nr, unsigned long *masks);
338 
353 HWLOC_DECLSPEC int hwloc_bitmap_nr_ulongs(hwloc_const_bitmap_t bitmap) __hwloc_attribute_pure;
354 
359 HWLOC_DECLSPEC int hwloc_bitmap_isset(hwloc_const_bitmap_t bitmap, unsigned id) __hwloc_attribute_pure;
360 
365 HWLOC_DECLSPEC int hwloc_bitmap_iszero(hwloc_const_bitmap_t bitmap) __hwloc_attribute_pure;
366 
373 HWLOC_DECLSPEC int hwloc_bitmap_isfull(hwloc_const_bitmap_t bitmap) __hwloc_attribute_pure;
374 
380 HWLOC_DECLSPEC int hwloc_bitmap_first(hwloc_const_bitmap_t bitmap) __hwloc_attribute_pure;
381 
388 HWLOC_DECLSPEC int hwloc_bitmap_next(hwloc_const_bitmap_t bitmap, int prev) __hwloc_attribute_pure;
389 
395 HWLOC_DECLSPEC int hwloc_bitmap_last(hwloc_const_bitmap_t bitmap) __hwloc_attribute_pure;
396 
403 HWLOC_DECLSPEC int hwloc_bitmap_weight(hwloc_const_bitmap_t bitmap) __hwloc_attribute_pure;
404 
410 HWLOC_DECLSPEC int hwloc_bitmap_first_unset(hwloc_const_bitmap_t bitmap) __hwloc_attribute_pure;
411 
418 HWLOC_DECLSPEC int hwloc_bitmap_next_unset(hwloc_const_bitmap_t bitmap, int prev) __hwloc_attribute_pure;
419 
425 HWLOC_DECLSPEC int hwloc_bitmap_last_unset(hwloc_const_bitmap_t bitmap) __hwloc_attribute_pure;
426 
442 #define hwloc_bitmap_foreach_begin(id, bitmap) \
443 do { \
444  assert(hwloc_bitmap_weight(bitmap) != -1); \
445  for (id = hwloc_bitmap_first(bitmap); \
446  (unsigned) id != (unsigned) -1; \
447  id = hwloc_bitmap_next(bitmap, id)) {
448 
456 #define hwloc_bitmap_foreach_end() \
457  } \
458 } while (0)
459 
460 
461 /*
462  * Combining bitmaps.
463  */
464 
469 HWLOC_DECLSPEC int hwloc_bitmap_or (hwloc_bitmap_t res, hwloc_const_bitmap_t bitmap1, hwloc_const_bitmap_t bitmap2);
470 
475 HWLOC_DECLSPEC int hwloc_bitmap_and (hwloc_bitmap_t res, hwloc_const_bitmap_t bitmap1, hwloc_const_bitmap_t bitmap2);
476 
481 HWLOC_DECLSPEC int hwloc_bitmap_andnot (hwloc_bitmap_t res, hwloc_const_bitmap_t bitmap1, hwloc_const_bitmap_t bitmap2);
482 
487 HWLOC_DECLSPEC int hwloc_bitmap_xor (hwloc_bitmap_t res, hwloc_const_bitmap_t bitmap1, hwloc_const_bitmap_t bitmap2);
488 
493 HWLOC_DECLSPEC int hwloc_bitmap_not (hwloc_bitmap_t res, hwloc_const_bitmap_t bitmap);
494 
495 
496 /*
497  * Comparing bitmaps.
498  */
499 
506 HWLOC_DECLSPEC int hwloc_bitmap_intersects (hwloc_const_bitmap_t bitmap1, hwloc_const_bitmap_t bitmap2) __hwloc_attribute_pure;
507 
514 HWLOC_DECLSPEC int hwloc_bitmap_isincluded (hwloc_const_bitmap_t sub_bitmap, hwloc_const_bitmap_t super_bitmap) __hwloc_attribute_pure;
515 
520 HWLOC_DECLSPEC int hwloc_bitmap_isequal (hwloc_const_bitmap_t bitmap1, hwloc_const_bitmap_t bitmap2) __hwloc_attribute_pure;
521 
539 HWLOC_DECLSPEC int hwloc_bitmap_compare_first(hwloc_const_bitmap_t bitmap1, hwloc_const_bitmap_t bitmap2) __hwloc_attribute_pure;
540 
558 HWLOC_DECLSPEC int hwloc_bitmap_compare(hwloc_const_bitmap_t bitmap1, hwloc_const_bitmap_t bitmap2) __hwloc_attribute_pure;
559 
563 #ifdef __cplusplus
564 } /* extern "C" */
565 #endif
566 
567 
568 #endif /* HWLOC_BITMAP_H */
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.
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_iszero
int hwloc_bitmap_iszero(hwloc_const_bitmap_t bitmap)
Test whether bitmap bitmap is empty.
hwloc_bitmap_isfull
int hwloc_bitmap_isfull(hwloc_const_bitmap_t bitmap)
Test whether bitmap bitmap is completely full.
hwloc_bitmap_zero
void hwloc_bitmap_zero(hwloc_bitmap_t bitmap)
Empty the bitmap bitmap.
hwloc_bitmap_set
int hwloc_bitmap_set(hwloc_bitmap_t bitmap, unsigned id)
Add index id in bitmap bitmap.
hwloc_bitmap_free
void hwloc_bitmap_free(hwloc_bitmap_t bitmap)
Free bitmap bitmap.
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_from_ulong
int hwloc_bitmap_from_ulong(hwloc_bitmap_t bitmap, unsigned long mask)
Setup bitmap bitmap from unsigned long mask.
hwloc_const_bitmap_t
const struct hwloc_bitmap_s * hwloc_const_bitmap_t
a non-modifiable hwloc_bitmap_t
Definition: bitmap.h:71
hwloc_bitmap_alloc_full
hwloc_bitmap_t hwloc_bitmap_alloc_full(void)
Allocate a new full 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_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_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_t
struct hwloc_bitmap_s * hwloc_bitmap_t
Set of bits represented as an opaque pointer to an internal bitmap.
Definition: bitmap.h:69
hwloc_bitmap_alloc
hwloc_bitmap_t hwloc_bitmap_alloc(void)
Allocate a new empty 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_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_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_first
int hwloc_bitmap_first(hwloc_const_bitmap_t bitmap)
Compute the first index (least significant bit) 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_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_last
int hwloc_bitmap_last(hwloc_const_bitmap_t bitmap)
Compute the last index (most significant bit) in bitmap bitmap.
hwloc_bitmap_only
int hwloc_bitmap_only(hwloc_bitmap_t bitmap, unsigned id)
Empty the bitmap bitmap and add bit id.
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_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_intersects
int hwloc_bitmap_intersects(hwloc_const_bitmap_t bitmap1, hwloc_const_bitmap_t bitmap2)
Test whether bitmaps bitmap1 and bitmap2 intersects.
hwloc_bitmap_singlify
int hwloc_bitmap_singlify(hwloc_bitmap_t bitmap)
Keep a single index among those set in bitmap bitmap.
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_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_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_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_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_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_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_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_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_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_clr
int hwloc_bitmap_clr(hwloc_bitmap_t bitmap, unsigned id)
Remove index id from 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_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_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_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_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_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_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_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_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_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_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_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_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_isset
int hwloc_bitmap_isset(hwloc_const_bitmap_t bitmap, unsigned id)
Test whether index id is part of bitmap bitmap.