git / moonbite-core / src/leveldb/db/c_test.c · raw
/* Copyright (c) 2011 The LevelDB Authors. All rights reserved. Use of this source code is governed by a BSD-style license that can be found in the LICENSE file. See the AUTHORS file for names of contributors. */#include "leveldb/c.h"#include <stddef.h>#include <stdio.h>#include <stdlib.h>#include <string.h>const char* phase = "";static void StartPhase(const char* name) { fprintf(stderr, "=== Test %s\n", name); phase = name;}#define CheckNoError(err) \ if ((err) != NULL) { \ fprintf(stderr, "%s:%d: %s: %s\n", __FILE__, __LINE__, phase, (err)); \ abort(); \ }#define CheckCondition(cond) \ if (!(cond)) { \ fprintf(stderr, "%s:%d: %s: %s\n", __FILE__, __LINE__, phase, #cond); \ abort(); \ }static void CheckEqual(const char* expected, const char* v, size_t n) { if (expected == NULL && v == NULL) { // ok } else if (expected != NULL && v != NULL && n == strlen(expected) && memcmp(expected, v, n) == 0) { // ok return; } else { fprintf(stderr, "%s: expected '%s', got '%s'\n", phase, (expected ? expected : "(null)"), (v ? v : "(null")); abort(); }}static void Free(char** ptr) { if (*ptr) { free(*ptr); *ptr = NULL; }}static void CheckGet( leveldb_t* db, const leveldb_readoptions_t* options, const char* key, const char* expected) { char* err = NULL; size_t val_len; char* val; val = leveldb_get(db, options, key, strlen(key), &val_len, &err); CheckNoError(err); CheckEqual(expected, val, val_len); Free(&val);}static void CheckIter(leveldb_iterator_t* iter, const char* key, const char* val) { size_t len; const char* str; str = leveldb_iter_key(iter, &len); CheckEqual(key, str, len); str = leveldb_iter_value(iter, &len); CheckEqual(val, str, len);}// Callback from leveldb_writebatch_iterate()static void CheckPut(void* ptr, const char* k, size_t klen, const char* v, size_t vlen) { int* state = (int*) ptr; CheckCondition(*state < 2); switch (*state) { case 0: CheckEqual("bar", k, klen); CheckEqual("b", v, vlen); break; case 1: CheckEqual("box", k, klen); CheckEqual("c", v, vlen); break; } (*state)++;}// Callback from leveldb_writebatch_iterate()static void CheckDel(void* ptr, const char* k, size_t klen) { int* state = (int*) ptr; CheckCondition(*state == 2); CheckEqual("bar", k, klen); (*state)++;}static void CmpDestroy(void* arg) { }static int CmpCompare(void* arg, const char* a, size_t alen, const char* b, size_t blen) { int n = (alen < blen) ? alen : blen; int r = memcmp(a, b, n); if (r == 0) { if (alen < blen) r = -1; else if (alen > blen) r = +1; } return r;}static const char* CmpName(void* arg) { return "foo";}// Custom filter policystatic uint8_t fake_filter_result = 1;static void FilterDestroy(void* arg) { }static const char* FilterName(void* arg) { return "TestFilter";}static char* FilterCreate( void* arg, const char* const* key_array, const size_t* key_length_array, int num_keys, size_t* filter_length) { *filter_length = 4; char* result = malloc(4); memcpy(result, "fake", 4); return result;}uint8_t FilterKeyMatch(void* arg, const char* key, size_t length, const char* filter, size_t filter_length) { CheckCondition(filter_length == 4); CheckCondition(memcmp(filter, "fake", 4) == 0); return fake_filter_result;}int main(int argc, char** argv) { leveldb_t* db; leveldb_comparator_t* cmp; leveldb_cache_t* cache; leveldb_env_t* env; leveldb_options_t* options; leveldb_readoptions_t* roptions; leveldb_writeoptions_t* woptions; char* dbname; char* err = NULL; int run = -1; CheckCondition(leveldb_major_version() >= 1); CheckCondition(leveldb_minor_version() >= 1); StartPhase("create_objects"); cmp = leveldb_comparator_create(NULL, CmpDestroy, CmpCompare, CmpName); env = leveldb_create_default_env(); cache = leveldb_cache_create_lru(100000); dbname = leveldb_env_get_test_directory(env); CheckCondition(dbname != NULL); options = leveldb_options_create(); leveldb_options_set_comparator(options, cmp); leveldb_options_set_error_if_exists(options, 1); leveldb_options_set_cache(options, cache); leveldb_options_set_env(options, env); leveldb_options_set_info_log(options, NULL); leveldb_options_set_write_buffer_size(options, 100000); leveldb_options_set_paranoid_checks(options, 1); leveldb_options_set_max_open_files(options, 10); leveldb_options_set_block_size(options, 1024); leveldb_options_set_block_restart_interval(options, 8); leveldb_options_set_max_file_size(options, 3 << 20); leveldb_options_set_compression(options, leveldb_no_compression); roptions = leveldb_readoptions_create(); leveldb_readoptions_set_verify_checksums(roptions, 1); leveldb_readoptions_set_fill_cache(roptions, 0); woptions = leveldb_writeoptions_create(); leveldb_writeoptions_set_sync(woptions, 1); StartPhase("destroy"); leveldb_destroy_db(options, dbname, &err); Free(&err); StartPhase("open_error"); db = leveldb_open(options, dbname, &err); CheckCondition(err != NULL); Free(&err); StartPhase("leveldb_free"); db = leveldb_open(options, dbname, &err); CheckCondition(err != NULL); leveldb_free(err); err = NULL; StartPhase("open"); leveldb_options_set_create_if_missing(options, 1); db = leveldb_open(options, dbname, &err); CheckNoError(err); CheckGet(db, roptions, "foo", NULL); StartPhase("put"); leveldb_put(db, woptions, "foo", 3, "hello", 5, &err); CheckNoError(err); CheckGet(db, roptions, "foo", "hello"); StartPhase("compactall"); leveldb_compact_range(db, NULL, 0, NULL, 0); CheckGet(db, roptions, "foo", "hello"); StartPhase("compactrange"); leveldb_compact_range(db, "a", 1, "z", 1); CheckGet(db, roptions, "foo", "hello"); StartPhase("writebatch"); { leveldb_writebatch_t* wb = leveldb_writebatch_create(); leveldb_writebatch_put(wb, "foo", 3, "a", 1); leveldb_writebatch_clear(wb); leveldb_writebatch_put(wb, "bar", 3, "b", 1); leveldb_writebatch_put(wb, "box", 3, "c", 1); leveldb_writebatch_t* wb2 = leveldb_writebatch_create(); leveldb_writebatch_delete(wb2, "bar", 3); leveldb_writebatch_append(wb, wb2); leveldb_writebatch_destroy(wb2); leveldb_write(db, woptions, wb, &err); CheckNoError(err); CheckGet(db, roptions, "foo", "hello"); CheckGet(db, roptions, "bar", NULL); CheckGet(db, roptions, "box", "c"); int pos = 0; leveldb_writebatch_iterate(wb, &pos, CheckPut, CheckDel); CheckCondition(pos == 3); leveldb_writebatch_destroy(wb); } StartPhase("iter"); { leveldb_iterator_t* iter = leveldb_create_iterator(db, roptions); CheckCondition(!leveldb_iter_valid(iter)); leveldb_iter_seek_to_first(iter); CheckCondition(leveldb_iter_valid(iter)); CheckIter(iter, "box", "c"); leveldb_iter_next(iter); CheckIter(iter, "foo", "hello"); leveldb_iter_prev(iter); CheckIter(iter, "box", "c"); leveldb_iter_prev(iter); CheckCondition(!leveldb_iter_valid(iter)); leveldb_iter_seek_to_last(iter); CheckIter(iter, "foo", "hello"); leveldb_iter_seek(iter, "b", 1); CheckIter(iter, "box", "c"); leveldb_iter_get_error(iter, &err); CheckNoError(err); leveldb_iter_destroy(iter); } StartPhase("approximate_sizes"); { int i; int n = 20000; char keybuf[100]; char valbuf[100]; uint64_t sizes[2]; const char* start[2] = { "a", "k00000000000000010000" }; size_t start_len[2] = { 1, 21 }; const char* limit[2] = { "k00000000000000010000", "z" }; size_t limit_len[2] = { 21, 1 }; leveldb_writeoptions_set_sync(woptions, 0); for (i = 0; i < n; i++) { snprintf(keybuf, sizeof(keybuf), "k%020d", i); snprintf(valbuf, sizeof(valbuf), "v%020d", i); leveldb_put(db, woptions, keybuf, strlen(keybuf), valbuf, strlen(valbuf), &err); CheckNoError(err); } leveldb_approximate_sizes(db, 2, start, start_len, limit, limit_len, sizes); CheckCondition(sizes[0] > 0); CheckCondition(sizes[1] > 0); } StartPhase("property"); { char* prop = leveldb_property_value(db, "nosuchprop"); CheckCondition(prop == NULL); prop = leveldb_property_value(db, "leveldb.stats"); CheckCondition(prop != NULL); Free(&prop); } StartPhase("snapshot"); { const leveldb_snapshot_t* snap; snap = leveldb_create_snapshot(db); leveldb_delete(db, woptions, "foo", 3, &err); CheckNoError(err); leveldb_readoptions_set_snapshot(roptions, snap); CheckGet(db, roptions, "foo", "hello"); leveldb_readoptions_set_snapshot(roptions, NULL); CheckGet(db, roptions, "foo", NULL); leveldb_release_snapshot(db, snap); } StartPhase("repair"); { leveldb_close(db); leveldb_options_set_create_if_missing(options, 0); leveldb_options_set_error_if_exists(options, 0); leveldb_repair_db(options, dbname, &err); CheckNoError(err); db = leveldb_open(options, dbname, &err); CheckNoError(err); CheckGet(db, roptions, "foo", NULL); CheckGet(db, roptions, "bar", NULL); CheckGet(db, roptions, "box", "c"); leveldb_options_set_create_if_missing(options, 1); leveldb_options_set_error_if_exists(options, 1); } StartPhase("filter"); for (run = 0; run < 2; run++) { // First run uses custom filter, second run uses bloom filter CheckNoError(err); leveldb_filterpolicy_t* policy; if (run == 0) { policy = leveldb_filterpolicy_create( NULL, FilterDestroy, FilterCreate, FilterKeyMatch, FilterName); } else { policy = leveldb_filterpolicy_create_bloom(10); } // Create new database leveldb_close(db); leveldb_destroy_db(options, dbname, &err); leveldb_options_set_filter_policy(options, policy); db = leveldb_open(options, dbname, &err); CheckNoError(err); leveldb_put(db, woptions, "foo", 3, "foovalue", 8, &err); CheckNoError(err); leveldb_put(db, woptions, "bar", 3, "barvalue", 8, &err); CheckNoError(err); leveldb_compact_range(db, NULL, 0, NULL, 0); fake_filter_result = 1; CheckGet(db, roptions, "foo", "foovalue"); CheckGet(db, roptions, "bar", "barvalue"); if (phase == 0) { // Must not find value when custom filter returns false fake_filter_result = 0; CheckGet(db, roptions, "foo", NULL); CheckGet(db, roptions, "bar", NULL); fake_filter_result = 1; CheckGet(db, roptions, "foo", "foovalue"); CheckGet(db, roptions, "bar", "barvalue"); } leveldb_options_set_filter_policy(options, NULL); leveldb_filterpolicy_destroy(policy); } StartPhase("cleanup"); leveldb_close(db); leveldb_options_destroy(options); leveldb_readoptions_destroy(roptions); leveldb_writeoptions_destroy(woptions); leveldb_free(dbname); leveldb_cache_destroy(cache); leveldb_comparator_destroy(cmp); leveldb_env_destroy(env); fprintf(stderr, "PASS\n"); return 0;}