summaryrefslogtreecommitdiffstats
path: root/fluent-bit/lib/librdkafka-2.1.0/src/rdmap.c
diff options
context:
space:
mode:
Diffstat (limited to 'fluent-bit/lib/librdkafka-2.1.0/src/rdmap.c')
-rw-r--r--fluent-bit/lib/librdkafka-2.1.0/src/rdmap.c487
1 files changed, 0 insertions, 487 deletions
diff --git a/fluent-bit/lib/librdkafka-2.1.0/src/rdmap.c b/fluent-bit/lib/librdkafka-2.1.0/src/rdmap.c
deleted file mode 100644
index 4b854703..00000000
--- a/fluent-bit/lib/librdkafka-2.1.0/src/rdmap.c
+++ /dev/null
@@ -1,487 +0,0 @@
-/*
- * librdkafka - The Apache Kafka C/C++ library
- *
- * Copyright (c) 2020 Magnus Edenhill
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are met:
- *
- * 1. Redistributions of source code must retain the above copyright notice,
- * this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright notice,
- * this list of conditions and the following disclaimer in the documentation
- * and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
- * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
- * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
- * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
- * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
- * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
- * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
- * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
- */
-
-#include "rd.h"
-#include "rdsysqueue.h"
-#include "rdstring.h"
-#include "rdmap.h"
-
-
-static RD_INLINE int rd_map_elem_cmp(const rd_map_elem_t *a,
- const rd_map_elem_t *b,
- const rd_map_t *rmap) {
- int r = a->hash - b->hash;
- if (r != 0)
- return r;
- return rmap->rmap_cmp(a->key, b->key);
-}
-
-static void rd_map_elem_destroy(rd_map_t *rmap, rd_map_elem_t *elem) {
- rd_assert(rmap->rmap_cnt > 0);
- rmap->rmap_cnt--;
- if (rmap->rmap_destroy_key)
- rmap->rmap_destroy_key((void *)elem->key);
- if (rmap->rmap_destroy_value)
- rmap->rmap_destroy_value((void *)elem->value);
- LIST_REMOVE(elem, hlink);
- LIST_REMOVE(elem, link);
- rd_free(elem);
-}
-
-static rd_map_elem_t *
-rd_map_find(const rd_map_t *rmap, int *bktp, const rd_map_elem_t *skel) {
- int bkt = skel->hash % rmap->rmap_buckets.cnt;
- rd_map_elem_t *elem;
-
- if (bktp)
- *bktp = bkt;
-
- LIST_FOREACH(elem, &rmap->rmap_buckets.p[bkt], hlink) {
- if (!rd_map_elem_cmp(skel, elem, rmap))
- return elem;
- }
-
- return NULL;
-}
-
-
-/**
- * @brief Create and return new element based on \p skel without value set.
- */
-static rd_map_elem_t *
-rd_map_insert(rd_map_t *rmap, int bkt, const rd_map_elem_t *skel) {
- rd_map_elem_t *elem;
-
- elem = rd_calloc(1, sizeof(*elem));
- elem->hash = skel->hash;
- elem->key = skel->key; /* takes ownership of key */
- LIST_INSERT_HEAD(&rmap->rmap_buckets.p[bkt], elem, hlink);
- LIST_INSERT_HEAD(&rmap->rmap_iter, elem, link);
- rmap->rmap_cnt++;
-
- return elem;
-}
-
-
-rd_map_elem_t *rd_map_set(rd_map_t *rmap, void *key, void *value) {
- rd_map_elem_t skel = {.key = key, .hash = rmap->rmap_hash(key)};
- rd_map_elem_t *elem;
- int bkt;
-
- if (!(elem = rd_map_find(rmap, &bkt, &skel))) {
- elem = rd_map_insert(rmap, bkt, &skel);
- } else {
- if (elem->value && rmap->rmap_destroy_value)
- rmap->rmap_destroy_value((void *)elem->value);
- if (rmap->rmap_destroy_key)
- rmap->rmap_destroy_key(key);
- }
-
- elem->value = value; /* takes ownership of value */
-
- return elem;
-}
-
-
-void *rd_map_get(const rd_map_t *rmap, const void *key) {
- const rd_map_elem_t skel = {.key = (void *)key,
- .hash = rmap->rmap_hash(key)};
- rd_map_elem_t *elem;
-
- if (!(elem = rd_map_find(rmap, NULL, &skel)))
- return NULL;
-
- return (void *)elem->value;
-}
-
-
-void rd_map_delete(rd_map_t *rmap, const void *key) {
- const rd_map_elem_t skel = {.key = (void *)key,
- .hash = rmap->rmap_hash(key)};
- rd_map_elem_t *elem;
- int bkt;
-
- if (!(elem = rd_map_find(rmap, &bkt, &skel)))
- return;
-
- rd_map_elem_destroy(rmap, elem);
-}
-
-
-void rd_map_copy(rd_map_t *dst,
- const rd_map_t *src,
- rd_map_copy_t *key_copy,
- rd_map_copy_t *value_copy) {
- const rd_map_elem_t *elem;
-
- RD_MAP_FOREACH_ELEM(elem, src) {
- rd_map_set(
- dst, key_copy ? key_copy(elem->key) : (void *)elem->key,
- value_copy ? value_copy(elem->value) : (void *)elem->value);
- }
-}
-
-
-void rd_map_iter_begin(const rd_map_t *rmap, const rd_map_elem_t **elem) {
- *elem = LIST_FIRST(&rmap->rmap_iter);
-}
-
-size_t rd_map_cnt(const rd_map_t *rmap) {
- return (size_t)rmap->rmap_cnt;
-}
-
-rd_bool_t rd_map_is_empty(const rd_map_t *rmap) {
- return rmap->rmap_cnt == 0;
-}
-
-
-/**
- * @brief Calculates the number of desired buckets and returns
- * a struct with pre-allocated buckets.
- */
-struct rd_map_buckets rd_map_alloc_buckets(size_t expected_cnt) {
- static const int max_depth = 15;
- static const int bucket_sizes[] = {
- 5, 11, 23, 47, 97, 199, /* default */
- 409, 823, 1741, 3469, 6949, 14033,
- 28411, 57557, 116731, 236897, -1};
- struct rd_map_buckets buckets = RD_ZERO_INIT;
- int i;
-
- if (!expected_cnt) {
- buckets.cnt = 199;
- } else {
- /* Strive for an average (at expected element count) depth
- * of 15 elements per bucket, but limit the maximum
- * bucket count to the maximum value in bucket_sizes above.
- * When a real need arise we'll change this to a dynamically
- * growing hash map instead, but this will do for now. */
- buckets.cnt = bucket_sizes[0];
- for (i = 1; bucket_sizes[i] != -1 &&
- (int)expected_cnt / max_depth > bucket_sizes[i];
- i++)
- buckets.cnt = bucket_sizes[i];
- }
-
- rd_assert(buckets.cnt > 0);
-
- buckets.p = rd_calloc(buckets.cnt, sizeof(*buckets.p));
-
- return buckets;
-}
-
-
-void rd_map_init(rd_map_t *rmap,
- size_t expected_cnt,
- int (*cmp)(const void *a, const void *b),
- unsigned int (*hash)(const void *key),
- void (*destroy_key)(void *key),
- void (*destroy_value)(void *value)) {
-
- memset(rmap, 0, sizeof(*rmap));
- rmap->rmap_buckets = rd_map_alloc_buckets(expected_cnt);
- rmap->rmap_cmp = cmp;
- rmap->rmap_hash = hash;
- rmap->rmap_destroy_key = destroy_key;
- rmap->rmap_destroy_value = destroy_value;
-}
-
-void rd_map_clear(rd_map_t *rmap) {
- rd_map_elem_t *elem;
-
- while ((elem = LIST_FIRST(&rmap->rmap_iter)))
- rd_map_elem_destroy(rmap, elem);
-}
-
-void rd_map_destroy(rd_map_t *rmap) {
- rd_map_clear(rmap);
- rd_free(rmap->rmap_buckets.p);
-}
-
-
-int rd_map_str_cmp(const void *a, const void *b) {
- return strcmp((const char *)a, (const char *)b);
-}
-
-/**
- * @brief A djb2 string hasher.
- */
-unsigned int rd_map_str_hash(const void *key) {
- const char *str = key;
- return rd_string_hash(str, -1);
-}
-
-
-
-/**
- * @name Unit tests
- *
- */
-#include "rdtime.h"
-#include "rdunittest.h"
-#include "rdcrc32.h"
-
-
-/**
- * Typed hash maps
- */
-
-/* Complex key type */
-struct mykey {
- int k;
- int something_else; /* Ignored by comparator and hasher below */
-};
-
-/* Key comparator */
-static int mykey_cmp(const void *_a, const void *_b) {
- const struct mykey *a = _a, *b = _b;
- return a->k - b->k;
-}
-
-/* Key hasher */
-static unsigned int mykey_hash(const void *_key) {
- const struct mykey *key = _key;
- return (unsigned int)key->k;
-}
-
-/* Complex value type */
-struct person {
- char *name;
- char *surname;
-};
-
-/* Define typed hash map type */
-typedef RD_MAP_TYPE(const struct mykey *,
- const struct person *) ut_my_typed_map_t;
-
-
-/**
- * @brief Test typed hash map with pre-defined type.
- */
-static int unittest_typed_map(void) {
- ut_my_typed_map_t rmap =
- RD_MAP_INITIALIZER(0, mykey_cmp, mykey_hash, NULL, NULL);
- ut_my_typed_map_t dup =
- RD_MAP_INITIALIZER(0, mykey_cmp, mykey_hash, NULL, NULL);
- struct mykey k1 = {1};
- struct mykey k2 = {2};
- struct person v1 = {"Roy", "McPhearsome"};
- struct person v2 = {"Hedvig", "Lindahl"};
- const struct mykey *key;
- const struct person *value;
-
- RD_MAP_SET(&rmap, &k1, &v1);
- RD_MAP_SET(&rmap, &k2, &v2);
-
- value = RD_MAP_GET(&rmap, &k2);
- RD_UT_ASSERT(value == &v2, "mismatch");
-
- RD_MAP_FOREACH(key, value, &rmap) {
- RD_UT_SAY("enumerated key %d person %s %s", key->k, value->name,
- value->surname);
- }
-
- RD_MAP_COPY(&dup, &rmap, NULL, NULL);
-
- RD_MAP_DELETE(&rmap, &k1);
- value = RD_MAP_GET(&rmap, &k1);
- RD_UT_ASSERT(value == NULL, "expected no k1");
-
- value = RD_MAP_GET(&dup, &k1);
- RD_UT_ASSERT(value == &v1, "copied map: k1 mismatch");
- value = RD_MAP_GET(&dup, &k2);
- RD_UT_ASSERT(value == &v2, "copied map: k2 mismatch");
-
- RD_MAP_DESTROY(&rmap);
- RD_MAP_DESTROY(&dup);
-
- RD_UT_PASS();
-}
-
-
-static int person_cmp(const void *_a, const void *_b) {
- const struct person *a = _a, *b = _b;
- int r;
- if ((r = strcmp(a->name, b->name)))
- return r;
- return strcmp(a->surname, b->surname);
-}
-static unsigned int person_hash(const void *_key) {
- const struct person *key = _key;
- return 31 * rd_map_str_hash(key->name) + rd_map_str_hash(key->surname);
-}
-
-/**
- * @brief Test typed hash map with locally defined type.
- */
-static int unittest_typed_map2(void) {
- RD_MAP_LOCAL_INITIALIZER(usermap, 3, const char *,
- const struct person *, rd_map_str_cmp,
- rd_map_str_hash, NULL, NULL);
- RD_MAP_LOCAL_INITIALIZER(personmap, 3, const struct person *,
- const char *, person_cmp, person_hash, NULL,
- NULL);
- struct person p1 = {"Magnus", "Lundstrom"};
- struct person p2 = {"Peppy", "Popperpappies"};
- const char *user;
- const struct person *person;
-
- /* Populate user -> person map */
- RD_MAP_SET(&usermap, "user1234", &p1);
- RD_MAP_SET(&usermap, "user9999999999", &p2);
-
- person = RD_MAP_GET(&usermap, "user1234");
-
-
- RD_UT_ASSERT(person == &p1, "mismatch");
-
- RD_MAP_FOREACH(user, person, &usermap) {
- /* Populate reverse name -> user map */
- RD_MAP_SET(&personmap, person, user);
- }
-
- RD_MAP_FOREACH(person, user, &personmap) {
- /* Just reference the memory to catch memory errors.*/
- RD_UT_ASSERT(strlen(person->name) > 0 &&
- strlen(person->surname) > 0 &&
- strlen(user) > 0,
- "bug");
- }
-
- RD_MAP_DESTROY(&usermap);
- RD_MAP_DESTROY(&personmap);
-
- return 0;
-}
-
-
-/**
- * @brief Untyped hash map.
- *
- * This is a more thorough test of the underlying hash map implementation.
- */
-static int unittest_untyped_map(void) {
- rd_map_t rmap;
- int pass, i, r;
- int cnt = 100000;
- int exp_cnt = 0, get_cnt = 0, iter_cnt = 0;
- const rd_map_elem_t *elem;
- rd_ts_t ts = rd_clock();
- rd_ts_t ts_get = 0;
-
- rd_map_init(&rmap, cnt, rd_map_str_cmp, rd_map_str_hash, rd_free,
- rd_free);
-
- /* pass 0 is set,delete,overwrite,get
- * pass 1-5 is get */
- for (pass = 0; pass < 6; pass++) {
- if (pass == 1)
- ts_get = rd_clock();
-
- for (i = 1; i < cnt; i++) {
- char key[10];
- char val[64];
- const char *val2;
- rd_bool_t do_delete = !(i % 13);
- rd_bool_t overwrite = !do_delete && !(i % 5);
-
- rd_snprintf(key, sizeof(key), "key%d", i);
- rd_snprintf(val, sizeof(val), "VALUE=%d!", i);
-
- if (pass == 0) {
- rd_map_set(&rmap, rd_strdup(key),
- rd_strdup(val));
-
- if (do_delete)
- rd_map_delete(&rmap, key);
- }
-
- if (overwrite) {
- rd_snprintf(val, sizeof(val), "OVERWRITE=%d!",
- i);
- if (pass == 0)
- rd_map_set(&rmap, rd_strdup(key),
- rd_strdup(val));
- }
-
- val2 = rd_map_get(&rmap, key);
-
- if (do_delete)
- RD_UT_ASSERT(!val2,
- "map_get pass %d "
- "returned value %s "
- "for deleted key %s",
- pass, val2, key);
- else
- RD_UT_ASSERT(val2 && !strcmp(val, val2),
- "map_get pass %d: "
- "expected value %s, not %s, "
- "for key %s",
- pass, val, val2 ? val2 : "NULL",
- key);
-
- if (pass == 0 && !do_delete)
- exp_cnt++;
- }
-
- if (pass >= 1)
- get_cnt += cnt;
- }
-
- ts_get = rd_clock() - ts_get;
- RD_UT_SAY("%d map_get iterations took %.3fms = %" PRId64 "us/get",
- get_cnt, (float)ts_get / 1000.0, ts_get / get_cnt);
-
- RD_MAP_FOREACH_ELEM(elem, &rmap) {
- iter_cnt++;
- }
-
- r = (int)rd_map_cnt(&rmap);
- RD_UT_ASSERT(r == exp_cnt, "expected %d map entries, not %d", exp_cnt,
- r);
-
- RD_UT_ASSERT(r == iter_cnt,
- "map_cnt() = %d, iteration gave %d elements", r, iter_cnt);
-
- rd_map_destroy(&rmap);
-
- ts = rd_clock() - ts;
- RD_UT_SAY("Total time over %d entries took %.3fms", cnt,
- (float)ts / 1000.0);
-
- RD_UT_PASS();
-}
-
-
-int unittest_map(void) {
- int fails = 0;
- fails += unittest_untyped_map();
- fails += unittest_typed_map();
- fails += unittest_typed_map2();
- return 0;
-}