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实现全量持久化：save操作落盘，启动时读取到内存

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增量持久化：执行修改操作时将cmd追加到log中，启动时逐条取出顺序执行
This commit is contained in:
1iaan
2026-01-07 18:43:28 +08:00
parent cb0134a852
commit 3cc97b9454
9 changed files with 373 additions and 74 deletions
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41
kvstore.h
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@@ -30,6 +30,9 @@
#define BIN_SAFE 1
#define KVS_CMD_LOG_FILE "kvs_cmd_log.db"
#define KVS_ARRAY_FILE "kvs_array.db"
// typedef int (*msg_handler)(char *msg, int length, char *response);
typedef int (*msg_handler)(char *request, int request_length, int *consumed_out, char *response, int *response_length);
@@ -47,10 +50,10 @@ extern int ntyco_start(unsigned short port, msg_handler handler);
typedef struct kvs_array_item_s {
uint8_t *key;
size_t key_len;
uint32_t key_len;
uint8_t *value;
size_t value_len;
uint32_t value_len;
} kvs_array_item_t;
@@ -62,16 +65,21 @@ typedef struct kvs_array_s {
int kvs_array_create(kvs_array_t *inst);
void kvs_array_destroy(kvs_array_t *inst);
int kvs_array_set_bin(kvs_array_t *inst,
const void *key, size_t key_len,
const void *value, size_t value_len);
const void *key, uint32_t key_len,
const void *value, uint32_t value_len);
void *kvs_array_get_bin(kvs_array_t *inst,
const void *key, size_t key_len,
size_t *out_value_len);
int kvs_array_del_bin(kvs_array_t *inst, const void *key, size_t key_len);
const void *key, uint32_t key_len,
uint32_t *out_value_len);
int kvs_array_del_bin(kvs_array_t *inst, const void *key, uint32_t key_len);
int kvs_array_mod_bin(kvs_array_t *inst,
const void *key, size_t key_len,
const void *value, size_t value_len);
int kvs_array_exist_bin(kvs_array_t *inst, const void *key, size_t key_len);
const void *key, uint32_t key_len,
const void *value, uint32_t value_len);
int kvs_array_exist_bin(kvs_array_t *inst, const void *key, uint32_t key_len);
int kvs_array_save(kvs_array_t *inst, const char* filename);
int kvs_array_load(kvs_array_t *inst, const char* filename);
#else
typedef struct kvs_array_item_s {
char *key;
@@ -170,14 +178,15 @@ typedef struct hashtable_s kvs_hash_t;
int kvs_hash_create(kvs_hash_t *hash);
void kvs_hash_destroy(kvs_hash_t *hash);
int kvs_hash_set_bin(kvs_hash_t *h, const void *key, size_t key_len, const void *value, size_t value_len);
void *kvs_hash_get_bin(kvs_hash_t *h, const void *key, size_t key_len, size_t *out_value_len);
int kvs_hash_get_copy_bin(kvs_hash_t *h, const void *key, size_t key_len, void **out_buf, size_t *out_len);
int kvs_hash_mod_bin(kvs_hash_t *h, const void *key, size_t key_len, const void *value, size_t value_len);
int kvs_hash_del_bin(kvs_hash_t *h, const void *key, size_t key_len);
int kvs_hash_exist_bin(kvs_hash_t *h, const void *key, size_t key_len);
int kvs_hash_set_bin(kvs_hash_t *h, const void *key, uint32_t key_len, const void *value, uint32_t value_len);
void *kvs_hash_get_bin(kvs_hash_t *h, const void *key, uint32_t key_len, uint32_t *out_value_len);
int kvs_hash_get_copy_bin(kvs_hash_t *h, const void *key, uint32_t key_len, void **out_buf, uint32_t *out_len);
int kvs_hash_mod_bin(kvs_hash_t *h, const void *key, uint32_t key_len, const void *value, uint32_t value_len);
int kvs_hash_del_bin(kvs_hash_t *h, const void *key, uint32_t key_len);
int kvs_hash_exist_bin(kvs_hash_t *h, const void *key, uint32_t key_len);
int kvs_hash_count(kvs_hash_t *h);
int save(kvs_hash_t *h, const char* filename);
#else
#define ENABLE_KEY_POINTER 1