Commit | Line | Data |
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fb91c0ef | 1 | /* |
0235b0db | 2 | * SPDX-License-Identifier: MIT |
fb91c0ef | 3 | * |
0235b0db | 4 | * Copyright 2019 Philippe Proulx <pproulx@efficios.com> |
fb91c0ef PP |
5 | */ |
6 | ||
7 | #define BT_LOG_TAG "LIB/INT-RANGE-SET" | |
8 | #include "lib/logging.h" | |
9 | ||
c4f23e30 FD |
10 | #include <stdbool.h> |
11 | ||
fb91c0ef | 12 | #include <babeltrace2/babeltrace.h> |
c4f23e30 | 13 | |
d98421f2 | 14 | #include "lib/assert-cond.h" |
fb91c0ef PP |
15 | #include "common/assert.h" |
16 | #include "func-status.h" | |
17 | #include "integer-range-set.h" | |
18 | ||
1353b066 | 19 | BT_EXPORT |
6769570a PP |
20 | uint64_t bt_integer_range_unsigned_get_lower( |
21 | const struct bt_integer_range_unsigned *u_range) | |
fb91c0ef PP |
22 | { |
23 | const struct bt_integer_range *range = (const void *) u_range; | |
24 | ||
d5b13b9b | 25 | BT_ASSERT_PRE_DEV_INT_RANGE_NON_NULL(range); |
fb91c0ef PP |
26 | return range->lower.u; |
27 | } | |
28 | ||
1353b066 | 29 | BT_EXPORT |
6769570a PP |
30 | uint64_t bt_integer_range_unsigned_get_upper( |
31 | const struct bt_integer_range_unsigned *u_range) | |
fb91c0ef PP |
32 | { |
33 | const struct bt_integer_range *range = (const void *) u_range; | |
34 | ||
d5b13b9b | 35 | BT_ASSERT_PRE_DEV_INT_RANGE_NON_NULL(range); |
fb91c0ef PP |
36 | return range->upper.u; |
37 | } | |
38 | ||
1353b066 | 39 | BT_EXPORT |
6769570a PP |
40 | int64_t bt_integer_range_signed_get_lower( |
41 | const struct bt_integer_range_signed *i_range) | |
fb91c0ef PP |
42 | { |
43 | const struct bt_integer_range *range = (const void *) i_range; | |
44 | ||
d5b13b9b | 45 | BT_ASSERT_PRE_DEV_INT_RANGE_NON_NULL(range); |
fb91c0ef PP |
46 | return range->lower.i; |
47 | } | |
48 | ||
1353b066 | 49 | BT_EXPORT |
6769570a PP |
50 | int64_t bt_integer_range_signed_get_upper( |
51 | const struct bt_integer_range_signed *i_range) | |
fb91c0ef PP |
52 | { |
53 | const struct bt_integer_range *range = (const void *) i_range; | |
54 | ||
d5b13b9b | 55 | BT_ASSERT_PRE_DEV_INT_RANGE_NON_NULL(range); |
fb91c0ef PP |
56 | return range->upper.i; |
57 | } | |
58 | ||
59 | static | |
60 | bool compare_ranges(const struct bt_integer_range *range_a, | |
61 | const struct bt_integer_range *range_b) | |
62 | { | |
63 | return range_a->lower.u == range_b->lower.u && | |
64 | range_a->upper.u == range_b->upper.u; | |
65 | } | |
66 | ||
1353b066 | 67 | BT_EXPORT |
cd933d89 | 68 | bt_bool bt_integer_range_unsigned_is_equal( |
fb91c0ef PP |
69 | const struct bt_integer_range_unsigned *range_a, |
70 | const struct bt_integer_range_unsigned *range_b) | |
71 | { | |
1778c2a4 PP |
72 | BT_ASSERT_PRE_DEV_NON_NULL("integer-range-a", range_a, |
73 | "Integer range A"); | |
74 | BT_ASSERT_PRE_DEV_NON_NULL("integer-range-b", range_b, | |
75 | "Integer range B"); | |
fb91c0ef PP |
76 | return (bt_bool) compare_ranges((const void *) range_a, |
77 | (const void *) range_b); | |
78 | } | |
79 | ||
1353b066 | 80 | BT_EXPORT |
cd933d89 | 81 | bt_bool bt_integer_range_signed_is_equal( |
fb91c0ef PP |
82 | const struct bt_integer_range_signed *range_a, |
83 | const struct bt_integer_range_signed *range_b) | |
84 | { | |
1778c2a4 PP |
85 | BT_ASSERT_PRE_DEV_NON_NULL("integer-range-a", range_a, |
86 | "Integer range A"); | |
87 | BT_ASSERT_PRE_DEV_NON_NULL("integer-range-b", range_b, | |
88 | "Integer range B"); | |
fb91c0ef PP |
89 | return (bt_bool) compare_ranges((const void *) range_a, |
90 | (const void *) range_b); | |
91 | } | |
92 | ||
1353b066 | 93 | BT_EXPORT |
fb91c0ef PP |
94 | uint64_t bt_integer_range_set_get_range_count( |
95 | const bt_integer_range_set *range_set) | |
96 | { | |
d5b13b9b | 97 | BT_ASSERT_PRE_DEV_INT_RANGE_SET_NON_NULL(range_set); |
fb91c0ef PP |
98 | return (uint64_t) range_set->ranges->len; |
99 | } | |
100 | ||
1353b066 | 101 | BT_EXPORT |
6769570a PP |
102 | const struct bt_integer_range_unsigned * |
103 | bt_integer_range_set_unsigned_borrow_range_by_index_const( | |
104 | const bt_integer_range_set_unsigned *u_range_set, | |
105 | uint64_t index) | |
fb91c0ef | 106 | { |
6769570a PP |
107 | const struct bt_integer_range_set *range_set = |
108 | (const void *) u_range_set; | |
fb91c0ef | 109 | |
d5b13b9b | 110 | BT_ASSERT_PRE_DEV_INT_RANGE_SET_NON_NULL(range_set); |
fb91c0ef | 111 | BT_ASSERT_PRE_DEV_VALID_INDEX(index, range_set->ranges->len); |
6769570a PP |
112 | return (const void *) BT_INTEGER_RANGE_SET_RANGE_AT_INDEX(range_set, |
113 | index); | |
fb91c0ef PP |
114 | } |
115 | ||
1353b066 | 116 | BT_EXPORT |
6769570a PP |
117 | const struct bt_integer_range_signed * |
118 | bt_integer_range_set_signed_borrow_range_by_index_const( | |
fb91c0ef PP |
119 | const bt_integer_range_set_signed *i_range_set, uint64_t index) |
120 | { | |
6769570a PP |
121 | const struct bt_integer_range_set *range_set = |
122 | (const void *) i_range_set; | |
fb91c0ef | 123 | |
d5b13b9b | 124 | BT_ASSERT_PRE_DEV_INT_RANGE_SET_NON_NULL(range_set); |
fb91c0ef | 125 | BT_ASSERT_PRE_DEV_VALID_INDEX(index, range_set->ranges->len); |
6769570a PP |
126 | return (const void *) BT_INTEGER_RANGE_SET_RANGE_AT_INDEX(range_set, |
127 | index); | |
fb91c0ef PP |
128 | } |
129 | ||
130 | static | |
131 | void destroy_range_set(struct bt_object *obj) | |
132 | { | |
133 | struct bt_integer_range_set *range_set = (void *) obj; | |
134 | ||
6769570a PP |
135 | BT_LIB_LOGD("Destroying integer range set: %!+R", range_set); |
136 | ||
fb91c0ef PP |
137 | if (range_set->ranges) { |
138 | g_array_free(range_set->ranges, TRUE); | |
139 | range_set->ranges = NULL; | |
140 | } | |
141 | ||
142 | g_free(range_set); | |
143 | } | |
144 | ||
145 | static | |
146 | struct bt_integer_range_set *create_range_set(void) | |
147 | { | |
6769570a PP |
148 | struct bt_integer_range_set *range_set; |
149 | ||
150 | BT_LOGD_STR("Creating empty integer range set."); | |
151 | range_set = g_new0(struct bt_integer_range_set, 1); | |
fb91c0ef PP |
152 | |
153 | if (!range_set) { | |
6769570a PP |
154 | BT_LIB_LOGE_APPEND_CAUSE( |
155 | "Failed to allocate one integer range set."); | |
fb91c0ef PP |
156 | goto error; |
157 | } | |
158 | ||
159 | bt_object_init_shared(&range_set->base, destroy_range_set); | |
160 | range_set->ranges = g_array_new(FALSE, TRUE, | |
161 | sizeof(struct bt_integer_range)); | |
162 | if (!range_set->ranges) { | |
163 | BT_LIB_LOGE_APPEND_CAUSE( | |
6769570a | 164 | "Failed to allocate integer range set's range array."); |
fb91c0ef PP |
165 | goto error; |
166 | } | |
167 | ||
6769570a | 168 | BT_LOGD_STR("Created empty integer range set."); |
fb91c0ef PP |
169 | goto end; |
170 | ||
171 | error: | |
172 | BT_OBJECT_PUT_REF_AND_RESET(range_set); | |
173 | ||
174 | end: | |
175 | return range_set; | |
176 | } | |
177 | ||
1353b066 | 178 | BT_EXPORT |
fb91c0ef PP |
179 | struct bt_integer_range_set_unsigned *bt_integer_range_set_unsigned_create(void) |
180 | { | |
17f3083a SM |
181 | BT_ASSERT_PRE_NO_ERROR(); |
182 | ||
fb91c0ef PP |
183 | return (void *) create_range_set(); |
184 | } | |
185 | ||
1353b066 | 186 | BT_EXPORT |
fb91c0ef PP |
187 | struct bt_integer_range_set_signed *bt_integer_range_set_signed_create(void) |
188 | { | |
17f3083a SM |
189 | BT_ASSERT_PRE_NO_ERROR(); |
190 | ||
fb91c0ef PP |
191 | return (void *) create_range_set(); |
192 | } | |
193 | ||
7c7301d5 | 194 | static |
fb91c0ef PP |
195 | void add_range_to_range_set(struct bt_integer_range_set *range_set, |
196 | uint64_t u_lower, uint64_t u_upper) | |
197 | { | |
198 | struct bt_integer_range range = { | |
199 | .lower.u = u_lower, | |
200 | .upper.u = u_upper, | |
201 | }; | |
202 | ||
d5b13b9b | 203 | BT_ASSERT_PRE_INT_RANGE_SET_NON_NULL(range_set); |
1778c2a4 PP |
204 | BT_ASSERT_PRE_DEV_HOT("integer-range-set", range_set, |
205 | "Integer range set", ": %!+R", range_set); | |
fb91c0ef | 206 | g_array_append_val(range_set->ranges, range); |
6769570a PP |
207 | BT_LIB_LOGD("Added integer range to integer range set: " |
208 | "%![range-set-]+R, lower-unsigned=%" PRIu64 ", " | |
209 | "upper-unsigned=%" PRIu64, range_set, u_lower, u_upper); | |
fb91c0ef PP |
210 | } |
211 | ||
1353b066 | 212 | BT_EXPORT |
6769570a PP |
213 | enum bt_integer_range_set_add_range_status |
214 | bt_integer_range_set_unsigned_add_range( | |
fb91c0ef PP |
215 | struct bt_integer_range_set_unsigned *range_set, |
216 | uint64_t lower, uint64_t upper) | |
217 | { | |
17f3083a | 218 | BT_ASSERT_PRE_NO_ERROR(); |
1778c2a4 | 219 | BT_ASSERT_PRE("lower-lteq-upper", lower <= upper, |
fb91c0ef PP |
220 | "Range's upper bound is less than lower bound: " |
221 | "upper=%" PRIu64 ", lower=%" PRIu64, lower, upper); | |
222 | add_range_to_range_set((void *) range_set, lower, upper); | |
223 | return BT_FUNC_STATUS_OK; | |
224 | } | |
225 | ||
1353b066 | 226 | BT_EXPORT |
6769570a PP |
227 | enum bt_integer_range_set_add_range_status |
228 | bt_integer_range_set_signed_add_range( | |
fb91c0ef PP |
229 | struct bt_integer_range_set_signed *range_set, |
230 | int64_t lower, int64_t upper) | |
231 | { | |
17f3083a | 232 | BT_ASSERT_PRE_NO_ERROR(); |
1778c2a4 | 233 | BT_ASSERT_PRE("lower-lteq-upper", lower <= upper, |
fb91c0ef PP |
234 | "Range's upper bound is less than lower bound: " |
235 | "upper=%" PRId64 ", lower=%" PRId64, lower, upper); | |
236 | add_range_to_range_set((void *) range_set, | |
237 | (int64_t) lower, (int64_t) upper); | |
238 | return BT_FUNC_STATUS_OK; | |
239 | } | |
240 | ||
fb91c0ef PP |
241 | void _bt_integer_range_set_freeze(const struct bt_integer_range_set *range_set) |
242 | { | |
243 | BT_ASSERT(range_set); | |
6769570a | 244 | BT_LIB_LOGD("Freezing integer range set: %!+R", range_set); |
fb91c0ef PP |
245 | ((struct bt_integer_range_set *) range_set)->frozen = true; |
246 | } | |
247 | ||
6769570a PP |
248 | bool bt_integer_range_set_unsigned_has_overlaps( |
249 | const struct bt_integer_range_set *range_set) | |
fb91c0ef PP |
250 | { |
251 | uint64_t i, j; | |
252 | bool has_overlap = false; | |
253 | ||
254 | BT_ASSERT(range_set); | |
255 | ||
256 | for (i = 0; i < range_set->ranges->len; i++) { | |
257 | const struct bt_integer_range *range_i = | |
258 | BT_INTEGER_RANGE_SET_RANGE_AT_INDEX(range_set, i); | |
259 | ||
260 | for (j = 0; j < range_set->ranges->len; j++) { | |
261 | const struct bt_integer_range *range_j = | |
6769570a PP |
262 | BT_INTEGER_RANGE_SET_RANGE_AT_INDEX( |
263 | range_set, j); | |
fb91c0ef PP |
264 | |
265 | if (i == j) { | |
266 | continue; | |
267 | } | |
268 | ||
269 | if (range_i->lower.u <= range_j->upper.u && | |
270 | range_j->lower.u <= range_i->upper.u) { | |
271 | has_overlap = true; | |
272 | goto end; | |
273 | } | |
274 | } | |
275 | } | |
276 | ||
277 | end: | |
278 | return has_overlap; | |
279 | } | |
280 | ||
6769570a PP |
281 | bool bt_integer_range_set_signed_has_overlaps( |
282 | const struct bt_integer_range_set *range_set) | |
fb91c0ef PP |
283 | { |
284 | uint64_t i, j; | |
285 | bool has_overlap = false; | |
286 | ||
287 | BT_ASSERT(range_set); | |
288 | ||
289 | for (i = 0; i < range_set->ranges->len; i++) { | |
290 | const struct bt_integer_range *range_i = | |
291 | BT_INTEGER_RANGE_SET_RANGE_AT_INDEX(range_set, i); | |
292 | ||
293 | for (j = 0; j < range_set->ranges->len; j++) { | |
294 | const struct bt_integer_range *range_j = | |
6769570a PP |
295 | BT_INTEGER_RANGE_SET_RANGE_AT_INDEX( |
296 | range_set, j); | |
fb91c0ef PP |
297 | |
298 | if (i == j) { | |
299 | continue; | |
300 | } | |
301 | ||
302 | if (range_i->lower.i <= range_j->upper.i && | |
303 | range_j->lower.i <= range_i->upper.i) { | |
304 | has_overlap = true; | |
305 | goto end; | |
306 | } | |
307 | } | |
308 | } | |
309 | ||
310 | end: | |
311 | return has_overlap; | |
312 | } | |
313 | ||
314 | static | |
315 | bool compare_range_sets(const struct bt_integer_range_set *range_set_a, | |
316 | const struct bt_integer_range_set *range_set_b) | |
317 | { | |
318 | uint64_t a_i, b_i; | |
319 | bool is_equal = true; | |
320 | ||
98b15851 PP |
321 | BT_ASSERT_DBG(range_set_a); |
322 | BT_ASSERT_DBG(range_set_b); | |
fb91c0ef PP |
323 | |
324 | if (range_set_a == range_set_b) { | |
325 | goto end; | |
326 | } | |
327 | ||
328 | /* | |
329 | * Not super effective for the moment: do a O(N²) compare, also | |
330 | * checking that the sizes match. | |
331 | */ | |
332 | if (range_set_a->ranges->len != range_set_b->ranges->len) { | |
333 | is_equal = false; | |
334 | goto end; | |
335 | } | |
336 | ||
337 | for (a_i = 0; a_i < range_set_a->ranges->len; a_i++) { | |
338 | const struct bt_integer_range *range_a = | |
339 | BT_INTEGER_RANGE_SET_RANGE_AT_INDEX(range_set_a, | |
340 | a_i); | |
341 | bool b_has_range = false; | |
342 | ||
343 | for (b_i = 0; b_i < range_set_b->ranges->len; b_i++) { | |
344 | const struct bt_integer_range *range_b = | |
345 | BT_INTEGER_RANGE_SET_RANGE_AT_INDEX( | |
346 | range_set_b, b_i); | |
347 | ||
348 | if (compare_ranges(range_a, range_b)) { | |
349 | b_has_range = true; | |
350 | break; | |
351 | } | |
352 | } | |
353 | ||
354 | if (!b_has_range) { | |
355 | is_equal = false; | |
356 | goto end; | |
357 | } | |
358 | } | |
359 | ||
360 | end: | |
361 | return is_equal; | |
362 | } | |
363 | ||
1353b066 | 364 | BT_EXPORT |
cd933d89 | 365 | bt_bool bt_integer_range_set_unsigned_is_equal( |
fb91c0ef PP |
366 | const struct bt_integer_range_set_unsigned *range_set_a, |
367 | const struct bt_integer_range_set_unsigned *range_set_b) | |
368 | { | |
1778c2a4 PP |
369 | BT_ASSERT_PRE_DEV_NON_NULL("integer-range-set-a", range_set_a, |
370 | "Range set A"); | |
371 | BT_ASSERT_PRE_DEV_NON_NULL("integer-range-set-b", range_set_b, | |
372 | "Range set B"); | |
fb91c0ef PP |
373 | return (bt_bool) compare_range_sets((const void *) range_set_a, |
374 | (const void *) range_set_b); | |
375 | } | |
376 | ||
1353b066 | 377 | BT_EXPORT |
cd933d89 | 378 | bt_bool bt_integer_range_set_signed_is_equal( |
fb91c0ef PP |
379 | const struct bt_integer_range_set_signed *range_set_a, |
380 | const struct bt_integer_range_set_signed *range_set_b) | |
381 | { | |
1778c2a4 PP |
382 | BT_ASSERT_PRE_DEV_NON_NULL("integer-range-set-a", range_set_a, |
383 | "Range set A"); | |
384 | BT_ASSERT_PRE_DEV_NON_NULL("integer-range-set-b", range_set_b, | |
385 | "Range set B"); | |
fb91c0ef PP |
386 | return (bt_bool) compare_range_sets((const void *) range_set_a, |
387 | (const void *) range_set_b); | |
388 | } | |
389 | ||
1353b066 | 390 | BT_EXPORT |
fb91c0ef PP |
391 | void bt_integer_range_set_unsigned_get_ref( |
392 | const struct bt_integer_range_set_unsigned *range_set) | |
393 | { | |
394 | bt_object_get_ref(range_set); | |
395 | } | |
396 | ||
1353b066 | 397 | BT_EXPORT |
fb91c0ef PP |
398 | void bt_integer_range_set_unsigned_put_ref( |
399 | const struct bt_integer_range_set_unsigned *range_set) | |
400 | { | |
401 | bt_object_put_ref(range_set); | |
402 | } | |
403 | ||
1353b066 | 404 | BT_EXPORT |
6769570a PP |
405 | void bt_integer_range_set_signed_get_ref( |
406 | const struct bt_integer_range_set_signed *range_set) | |
fb91c0ef PP |
407 | { |
408 | bt_object_get_ref(range_set); | |
409 | } | |
410 | ||
1353b066 | 411 | BT_EXPORT |
6769570a PP |
412 | void bt_integer_range_set_signed_put_ref( |
413 | const struct bt_integer_range_set_signed *range_set) | |
fb91c0ef PP |
414 | { |
415 | bt_object_put_ref(range_set); | |
416 | } |