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rbtree和hash的全量持久化操作。rbtree的二进制安全。

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粗略测试。
This commit is contained in:
1iaan
2026-01-08 21:42:20 +08:00
parent de21fe94ec
commit 4b4e06b33d
16 changed files with 1997 additions and 1450 deletions
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1
.gitignore vendored
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@@ -1,6 +1,7 @@
NtyCo/
.vscode/
*.db
*.copy
proactor copy.c
ntyco copy.c

2
Makefile
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@@ -2,7 +2,7 @@
CC = gcc
FLAGS = -I ./NtyCo/core/ -L ./NtyCo/ -lntyco -lpthread -luring -ldl
# SRCS = kvstore.c ntyco.c proactor.c reactor.c kvs_array.c kvs_rbtree.c kvs_hash.c kvs_rw_tools.c
SRCS = kvstore.c ntyco.c proactor.c reactor.c kvs_array.c kvs_rbtree.c kvs_hash_bin.c kvs_rw_tools.c
SRCS = kvstore.c ntyco.c proactor.c reactor.c kvs_array_bin.c kvs_rbtree_bin.c kvs_hash_bin.c kvs_rw_tools.c kvs_cmd_log.c
TESTCASE_SRCS = testcase.c
TARGET = kvstore
SUBDIR = ./NtyCo/

220
kvs_array.c
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@@ -38,224 +38,7 @@ void kvs_array_destroy(kvs_array_t *inst) {
}
#if BIN_SAFE
/**
* return: ==-2 not exist, == -1 error, >= 0 exist idx
*/
int kvs_array_find_index(kvs_array_t *inst, const void *key, uint32_t key_len) {
if (!inst || !inst->table || !key) return -1;
for (int i = 0; i < inst->total; i++) {
kvs_array_item_t *it = &inst->table[i];
if (!it->key) continue;
if (it->key_len == key_len && memcmp(it->key, key, key_len) == 0) {
return i;
}
}
return -2; // not found
}
/*
* return: <0 error; 0 success; 1 exist
*/
int kvs_array_set_bin(kvs_array_t *inst,
const void *key, uint32_t key_len,
const void *value, uint32_t value_len) {
if (!inst || !inst->table || !key || key_len == 0 || !value) return -1;
if (inst->total >= KVS_ARRAY_SIZE) return -1;
int idx = kvs_array_find_index(inst, key, key_len);
// -2 not exist
if (idx >= 0) return 1; // exist
if (idx == -1) return -1; // error
uint8_t *kcopy = (uint8_t *)kvs_malloc(key_len);
if (!kcopy) return -2;
memcpy(kcopy, key, key_len);
uint8_t *vcopy = NULL;
if (value_len > 0) {
vcopy = (uint8_t *)kvs_malloc(value_len);
if (!vcopy) {
kvs_free(kcopy);
return -2;
}
memcpy(vcopy, value, value_len);
} else {
// 允许空 value（长度0），value 指针置 NULL
vcopy = NULL;
}
int i = 0;
for (i = 0;i < inst->total;i ++) {
if (inst->table[i].key == NULL) {
inst->table[i].key = kcopy;
inst->table[i].key_len = key_len;
inst->table[i].value = vcopy;
inst->table[i].value_len = value_len;
inst->total ++;
return 0;
}
}
if (i == inst->total && i < KVS_ARRAY_SIZE) {
inst->table[i].key = kcopy;
inst->table[i].key_len = key_len;
inst->table[i].value = vcopy;
inst->table[i].value_len = value_len;
inst->total ++;
}
return 0;
}
void *kvs_array_get_bin(kvs_array_t *inst, const void *key, uint32_t key_len, uint32_t *out_value_len) {
if (out_value_len) *out_value_len = 0;
if (!inst || !inst->table || !key || key_len == 0) return NULL;
int idx = kvs_array_find_index(inst, key, key_len);
if (idx < 0) return NULL;
kvs_array_item_t *it = &inst->table[idx];
if (out_value_len) *out_value_len = it->value_len;
return it->value; // 注意：由 store 持有
}
int kvs_array_del_bin(kvs_array_t *inst, const void *key, uint32_t key_len) {
if (!inst || !inst->table || !key || key_len == 0) return -1;
int idx = kvs_array_find_index(inst, key, key_len);
if (idx == -2) return 1; // not exist
if (idx < 0) return -1;
kvs_array_item_t *it = &inst->table[idx];
if (it->key) kvs_free(it->key);
if (it->value) kvs_free(it->value);
// 用末尾元素填洞，保证 total 连续，避免 “total 只增不减” 问题
int last = inst->total - 1;
if (idx != last) {
inst->table[idx] = inst->table[last];
}
// 清理末尾（已被移动或删除）
memset(&inst->table[last], 0, sizeof(kvs_array_item_t));
inst->total--;
return 0;
}
int kvs_array_mod_bin(kvs_array_t *inst,
const void *key, uint32_t key_len,
const void *value, uint32_t value_len) {
if (!inst || !inst->table || !key || key_len == 0 || !value) return -1;
int idx = kvs_array_find_index(inst, key, key_len);
if (idx == -2) return 1; // not exist
if (idx < 0) return -1;
kvs_array_item_t *it = &inst->table[idx];
uint8_t *vcopy = NULL;
if (value_len > 0) {
vcopy = (uint8_t *)kvs_malloc(value_len);
if (!vcopy) return -2;
memcpy(vcopy, value, value_len);
} else {
vcopy = NULL;
}
if (it->value) kvs_free(it->value);
it->value = vcopy;
it->value_len = value_len;
return 0;
}
int kvs_array_exist_bin(kvs_array_t *inst, const void *key, uint32_t key_len) {
if (!inst || !inst->table || !key || key_len == 0) return -1;
int idx = kvs_array_find_index(inst, key, key_len);
return (idx >= 0) ? 0 : 1;
}
// return: 0 success, <0 error
int kvs_array_save(kvs_array_t *inst, const char* filename){
if(!inst || !filename) return -1;
FILE *fp = fopen(filename, "wb");
if(!fp) return -2;
for(int i = 0;i < inst->total; ++ i){
kvs_array_item_t *it = &inst->table[i];
if(!it->key || it->key_len == 0) continue; // 跳过空槽
if(it->value_len > 0 && !it->value) { fclose(fp); return -3; }
uint32_t klen = htonl(it->key_len);
uint32_t vlen = htonl(it->value_len);
if (kvs_write_file(fp, &klen, 4) < 0) { fclose(fp); return -4; }
if (kvs_write_file(fp, &vlen, 4) < 0) { fclose(fp); return -4; }
if (kvs_write_file(fp, it->key, it->key_len) < 0) { fclose(fp); return -4; }
if (it->value_len > 0) {
if (kvs_write_file(fp, it->value, it->value_len) < 0) { fclose(fp); return -4; }
}
}
fclose(fp);
return 0;
}
int kvs_array_load(kvs_array_t *inst, const char* filename) {
if (!inst || !filename) return -1;
if (!inst->table) return -1;
FILE *fp = fopen(filename, "rb");
if (!fp) return -2;
int idx = 0;
while(1){
uint32_t klen = 0, vlen = 0;
if (kvs_read_file(fp, &klen, 4) < 0) { fclose(fp); return -3; }
if (kvs_read_file(fp, &vlen, 4) < 0) { fclose(fp); return -3; }
klen = ntohl(klen);
vlen = ntohl(vlen);
if (klen == 0) { fclose(fp); return -3; }
kvs_array_item_t *it = &inst->table[idx];
memset(it, 0, sizeof(*it));
it->key = (uint8_t *)kvs_malloc(klen);
if (!it->key) { fclose(fp); return -3; }
it->key_len = klen;
if (kvs_read_file(fp, it->key, klen) < 0) { fclose(fp); return -3; }
if (vlen > 0) {
it->value = (uint8_t *)kvs_malloc(vlen);
if (!it->value) { fclose(fp); return -4; }
it->value_len = vlen;
if (kvs_read_file(fp, it->value, vlen) < 0) { fclose(fp); return -3; }
} else {
it->value = NULL;
it->value_len = 0;
}
inst->total ++;
idx++;
if(idx >= KVS_ARRAY_SIZE){ break; }
}
fclose(fp);
return 0;
}
#else
/*
* @return: <0, error; =0, success; >0, exist
*/
@@ -406,6 +189,3 @@ int kvs_array_exist(kvs_array_t *inst, char *key) {
}
return 0;
}
#endif

267
kvs_array_bin.c Normal file
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@@ -0,0 +1,267 @@
#include "kvstore.h"
#include "kvs_rw_tools.h"
#include <arpa/inet.h>
// singleton
kvs_array_t global_array = {0};
int kvs_array_create(kvs_array_t *inst) {
if (!inst) return -1;
if (inst->table) {
printf("table has alloc\n");
return -1;
}
inst->table = kvs_malloc(KVS_ARRAY_SIZE * sizeof(kvs_array_item_t));
if (!inst->table) {
return -1;
}
memset(inst->table, 0, (size_t)KVS_ARRAY_SIZE * sizeof(kvs_array_item_t));
inst->total = 0;
return 0;
}
void kvs_array_destroy(kvs_array_t *inst) {
if (!inst) return ;
if (inst->table) {
kvs_free(inst->table);
}
}
/**
* return: ==-2 not exist, == -1 error, >= 0 exist idx
*/
int kvs_array_find_index(kvs_array_t *inst, const void *key, uint32_t key_len) {
if (!inst || !inst->table || !key) return -1;
for (int i = 0; i < inst->total; i++) {
kvs_array_item_t *it = &inst->table[i];
if (!it->key) continue;
if (it->key_len == key_len && memcmp(it->key, key, key_len) == 0) {
return i;
}
}
return -2; // not found
}
/*
* return: <0 error; 0 success; 1 exist
*/
int kvs_array_set_bin(kvs_array_t *inst,
const void *key, uint32_t key_len,
const void *value, uint32_t value_len) {
if (!inst || !inst->table || !key || key_len == 0 || !value) return -1;
if (inst->total >= KVS_ARRAY_SIZE) return -1;
int idx = kvs_array_find_index(inst, key, key_len);
// -2 not exist
if (idx >= 0) return 1; // exist
if (idx == -1) return -1; // error
uint8_t *kcopy = (uint8_t *)kvs_malloc(key_len);
if (!kcopy) return -2;
memcpy(kcopy, key, key_len);
uint8_t *vcopy = NULL;
if (value_len > 0) {
vcopy = (uint8_t *)kvs_malloc(value_len);
if (!vcopy) {
kvs_free(kcopy);
return -2;
}
memcpy(vcopy, value, value_len);
} else {
// 允许空 value（长度0），value 指针置 NULL
vcopy = NULL;
}
int i = 0;
for (i = 0;i < inst->total;i ++) {
if (inst->table[i].key == NULL) {
inst->table[i].key = kcopy;
inst->table[i].key_len = key_len;
inst->table[i].value = vcopy;
inst->table[i].value_len = value_len;
inst->total ++;
return 0;
}
}
if (i == inst->total && i < KVS_ARRAY_SIZE) {
inst->table[i].key = kcopy;
inst->table[i].key_len = key_len;
inst->table[i].value = vcopy;
inst->table[i].value_len = value_len;
inst->total ++;
}
return 0;
}
/*
* @return: NULL notexist, NOTNULL exist
*/
void *kvs_array_get_bin(kvs_array_t *inst, const void *key, uint32_t key_len, uint32_t *out_value_len) {
if (out_value_len) *out_value_len = 0;
if (!inst || !inst->table || !key || key_len == 0) return NULL;
int idx = kvs_array_find_index(inst, key, key_len);
if (idx < 0) return NULL;
kvs_array_item_t *it = &inst->table[idx];
if (out_value_len) *out_value_len = it->value_len;
return it->value; // 注意：由 store 持有
}
/*
* @return < 0, error; =0, success; >0, no exist
*/
int kvs_array_del_bin(kvs_array_t *inst, const void *key, uint32_t key_len) {
if (!inst || !inst->table || !key || key_len == 0) return -1;
int idx = kvs_array_find_index(inst, key, key_len);
if (idx == -2) return 1; // not exist
if (idx < 0) return -1;
kvs_array_item_t *it = &inst->table[idx];
if (it->key) kvs_free(it->key);
if (it->value) kvs_free(it->value);
// 用末尾元素填洞，保证 total 连续，避免 “total 只增不减” 问题
int last = inst->total - 1;
if (idx != last) {
inst->table[idx] = inst->table[last];
}
// 清理末尾（已被移动或删除）
memset(&inst->table[last], 0, sizeof(kvs_array_item_t));
inst->total--;
return 0;
}
/*
* @return : < 0, error; =0, success; >0, no exist
*/
int kvs_array_mod_bin(kvs_array_t *inst,
const void *key, uint32_t key_len,
const void *value, uint32_t value_len) {
if (!inst || !inst->table || !key || key_len == 0 || !value) return -1;
int idx = kvs_array_find_index(inst, key, key_len);
if (idx == -2) return 1; // not exist
if (idx < 0) return -1;
kvs_array_item_t *it = &inst->table[idx];
uint8_t *vcopy = NULL;
if (value_len > 0) {
vcopy = (uint8_t *)kvs_malloc(value_len);
if (!vcopy) return -2;
memcpy(vcopy, value, value_len);
} else {
vcopy = NULL;
}
if (it->value) kvs_free(it->value);
it->value = vcopy;
it->value_len = value_len;
return 0;
}
/*
* @return 0: exist, 1: no exist
*/
int kvs_array_exist_bin(kvs_array_t *inst, const void *key, uint32_t key_len) {
if (!inst || !inst->table || !key || key_len == 0) return -1;
int idx = kvs_array_find_index(inst, key, key_len);
return (idx >= 0) ? 0 : 1;
}
// return: 0 success, <0 error
int kvs_array_save(kvs_array_t *inst, const char* filename){
if(!inst || !filename) return -1;
FILE *fp = fopen(filename, "wb");
if(!fp) return -2;
for(int i = 0;i < inst->total; ++ i){
kvs_array_item_t *it = &inst->table[i];
if(!it->key || it->key_len == 0) continue; // 跳过空槽
if(it->value_len > 0 && !it->value) { fclose(fp); return -3; }
uint32_t klen = htonl(it->key_len);
uint32_t vlen = htonl(it->value_len);
if (kvs_write_file(fp, &klen, 4) < 0) { fclose(fp); return -4; }
if (kvs_write_file(fp, &vlen, 4) < 0) { fclose(fp); return -4; }
if (kvs_write_file(fp, it->key, it->key_len) < 0) { fclose(fp); return -4; }
if (it->value_len > 0) {
if (kvs_write_file(fp, it->value, it->value_len) < 0) { fclose(fp); return -4; }
}
}
fclose(fp);
return 0;
}
int kvs_array_load(kvs_array_t *inst, const char* filename) {
if (!inst || !filename) return -1;
if (!inst->table) return -1;
FILE *fp = fopen(filename, "rb");
if (!fp) return -2;
int idx = 0;
while(1){
uint32_t klen_n = 0, vlen_n = 0;
if (kvs_read_file(fp, &klen_n, 4) < 0) { fclose(fp); return -3; }
if (kvs_read_file(fp, &vlen_n, 4) < 0) { fclose(fp); return -3; }
uint32_t klen = ntohl(klen_n);
uint32_t vlen = ntohl(vlen_n);
if (klen == 0) { fclose(fp); return -3; }
kvs_array_item_t *it = &inst->table[idx];
memset(it, 0, sizeof(*it));
it->key = (uint8_t *)kvs_malloc(klen);
if (!it->key) { fclose(fp); return -3; }
it->key_len = klen;
if (kvs_read_file(fp, it->key, klen) < 0) { fclose(fp); return -3; }
if (vlen > 0) {
it->value = (uint8_t *)kvs_malloc(vlen);
if (!it->value) { fclose(fp); return -4; }
it->value_len = vlen;
if (kvs_read_file(fp, it->value, vlen) < 0) { fclose(fp); return -3; }
} else {
it->value = NULL;
it->value_len = 0;
}
inst->total ++;
idx++;
if(idx >= KVS_ARRAY_SIZE){ break; }
}
fclose(fp);
return 0;
}

100
kvs_cmd_log.c Normal file
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@@ -0,0 +1,100 @@
#include "kvstore.h"
#include "kvs_rw_tools.h"
#include <arpa/inet.h>
#include <fcntl.h>
#include <unistd.h>
int init_cmd_log(const char *file, int *logfd){
if(!file) return -1;
int fd = open(file, O_RDWR | O_CREAT | O_APPEND, 0644);
if(fd < 0) return -2;
*logfd = fd;
return 0;
}
int destroy_cmd_log(int logfd){
close(logfd);
return 0;
}
int kvs_save_cmd_to_logfile(const uint8_t *cmd, size_t len, int logfd){
if (logfd < 0 || !cmd || len == 0)
return -1;
if (len > UINT32_MAX)
return -2;
uint32_t nlen = htonl((uint32_t)len);
if (write_full(logfd, &nlen, sizeof(nlen)) < 0)
return -3;
if (write_full(logfd, cmd, len) < 0)
return -4;
if (fsync(logfd) < 0)
return -5;
return 0;
}
int kvs_replay_log(const char *logfile, int logfd){
if (!logfile|| logfd<0) return -1;
for (;;) {
uint32_t nlen = 0;
int hr = read_full(logfd, &nlen, sizeof(nlen));
if (hr == 0) break; /* EOF：正常结束 */
if (hr < 0) { return -2; } /* 半截头 */
uint32_t len = ntohl(nlen);
if (len == 0) { return -3; }
uint8_t *cmd = (uint8_t *)kvs_malloc(len);
if (!cmd) { return -5; }
int pr = read_full(logfd, cmd, len);
if (pr <= 0) { /* 半截 payload */
kvs_free(cmd);
return -6;
}
kvs_req_t req;
memset(&req, 0, sizeof(req));
int clen = kvs_parse_one_cmd(cmd, (int)len, &req);
if (clen <= 0 || clen != (int)len) {
kvs_free_request(&req);
kvs_free(cmd);
return -7;
}
kvs_rsp_t rsp;
memset(&rsp, 0, sizeof(rsp));
if (kvs_execute_one_cmd(&req, &rsp) < 0) {
kvs_free_request(&req);
kvs_free(cmd);
return -8;
}
kvs_free_request(&req);
kvs_free(cmd);
}
return 0;
}
/**
* clear log file not close
*/
int ksv_clear_log(int logfd){
if(logfd < 0) return -1;
ftruncate(logfd, 0);
lseek(logfd, 0, SEEK_SET);
return 0;
}

108
kvs_hash_bin.c
View File

@@ -8,7 +8,8 @@
#include "kvstore.h"
#include "kvs_rw_tools.h"
#include <arpa/inet.h>
// Key, Value -->
// Modify
@@ -114,7 +115,7 @@ void kvs_hash_destroy(kvs_hash_t *hash) {
* @return: <0 error; =0 success; >0 exist
*/
int kvs_hash_set_bin(kvs_hash_t *hash, const void *key, uint32_t key_len, const void *value, uint32_t value_len) {
if (!hash || !hash->nodes || !key || key_len == 0 || !value) return -1;
if (!hash || !hash->nodes || !key || key_len == 0) return -1;
int idx = _hash(key, key_len, MAX_TABLE_SIZE);
if (idx < 0) return -1;
@@ -208,16 +209,16 @@ int kvs_hash_count(kvs_hash_t *hash) {
}
/*
* @return 0 success; <0 error/noexist
* @return < 0, error; =0, success; >0, no exist
*/
int kvs_hash_del_bin(kvs_hash_t *hash, const void *key, uint32_t key_len) {
if (!hash || !key || key_len == 0) return -2;
if (!hash || !key || key_len == 0) return -1;
int idx = _hash(key, key_len, MAX_TABLE_SIZE);
if (idx < 0) return -2;
if (idx < 0) return -1;
hashnode_t *head = hash->nodes[idx];
if (head == NULL) return -1; // noexist
if (head == NULL) return 1; // noexist
// head node
if (_key_equal(head, key, key_len)) {
@@ -241,7 +242,7 @@ int kvs_hash_del_bin(kvs_hash_t *hash, const void *key, uint32_t key_len) {
if (cur->next == NULL) {
return -1;
return 1;
}
hashnode_t *tmp = cur->next;
@@ -264,37 +265,86 @@ int kvs_hash_exist_bin(kvs_hash_t *hash, const void *key, uint32_t key_len) {
return value ? 0 : 1;
}
#if 0
int main() {
// 0 suc, <0 error
int kvs_hash_save(kvs_hash_t *inst, const char* filename){
if(!inst || !filename) return -1;
FILE *fp = fopen(filename, "wb");
if(!fp) return -2;
kvs_hash_create(&hash);
kvs_hash_set(&hash, "Teacher1", "King");
kvs_hash_set(&hash, "Teacher2", "Darren");
kvs_hash_set(&hash, "Teacher3", "Mark");
kvs_hash_set(&hash, "Teacher4", "Vico");
kvs_hash_set(&hash, "Teacher5", "Nick");
for(int i = 0;i < inst->max_slots; ++ i){
for (hashnode_t *n = inst->nodes[i]; n != NULL; n = n->next) {
if (!n->key || n->key_len == 0) continue;
if (n->value_len > 0 && !n->value) { fclose(fp); return -3; }
char *value1 = kvs_hash_get(&hash, "Teacher1");
printf("Teacher1 : %s\n", value1);
int ret = kvs_hash_mod(&hash, "Teacher1", "King1");
printf("mode Teacher1 ret : %d\n", ret);
uint32_t klen = htonl((uint32_t)n->key_len);
uint32_t vlen = htonl((uint32_t)n->value_len);
char *value2 = kvs_hash_get(&hash, "Teacher1");
printf("Teacher2 : %s\n", value1);
if (kvs_write_file(fp, &klen, 4) < 0) { fclose(fp); return -4; }
if (kvs_write_file(fp, &vlen, 4) < 0) { fclose(fp); return -4; }
ret = kvs_hash_del(&hash, "Teacher1");
printf("delete Teacher1 ret : %d\n", ret);
ret = kvs_hash_exist(&hash, "Teacher1");
printf("Exist Teacher1 ret : %d\n", ret);
kvs_hash_destroy(&hash);
if (kvs_write_file(fp, n->key, n->key_len) < 0) { fclose(fp); return -4; }
if (n->value_len > 0) {
if (kvs_write_file(fp, n->value, n->value_len) < 0) { fclose(fp); return -4; }
}
}
}
fclose(fp);
return 0;
}
#endif
int kvs_hash_load(kvs_hash_t *inst, const char* filename){
if (!inst || !filename) return -1;
if (!inst->nodes || inst->max_slots <= 0) return -1;
FILE *fp = fopen(filename, "rb");
if (!fp) return -2;
while(1){
uint32_t klen_n = 0, vlen_n = 0;
if (kvs_read_file(fp, &klen_n, 4) < 0) { fclose(fp); return -3; }
if (kvs_read_file(fp, &vlen_n, 4) < 0) { fclose(fp); return -3; }
uint32_t klen = ntohl(klen_n);
uint32_t vlen = ntohl(vlen_n);
if (klen == 0) { fclose(fp); return -3; }
uint8_t *keybuf = (uint8_t*)kvs_malloc((size_t)klen);
if (!keybuf) { fclose(fp); return -4; }
if (kvs_read_file(fp, keybuf, (size_t)klen) < 0) {
kvs_free(keybuf);
fclose(fp);
return -3;
}
uint8_t *valbuf = NULL;
if (vlen > 0) {
valbuf = (uint8_t*)kvs_malloc((size_t)vlen);
if (!valbuf) {
kvs_free(keybuf);
fclose(fp);
return -4;
}
if (kvs_read_file(fp, valbuf, (size_t)vlen) < 0) {
kvs_free(valbuf);
kvs_free(keybuf);
fclose(fp);
return -3;
}
}
int rc = kvs_hash_set_bin(inst, keybuf, klen, valbuf, vlen);
kvs_free(keybuf);
if (vlen > 0) kvs_free(valbuf);
if (rc < 0) { // error
fclose(fp);
return -5;
}
}
fclose(fp);
return 0;
}

934
kvs_rbtree.c
View File

File diff suppressed because it is too large Load Diff

568
kvs_rbtree_bin.c Normal file
View File

@@ -0,0 +1,568 @@
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "kvstore.h"
#include "kvs_rw_tools.h"
#include <arpa/inet.h>
int kvs_keycmp(const uint8_t *a, uint32_t alen,
const uint8_t *b, uint32_t blen) {
uint32_t min = (alen < blen) ? alen : blen;
int r = 0;
if (min > 0) {
r = memcmp(a, b, min);
if (r != 0) return r;
}
// 前缀相同，则短的更小
if (alen < blen) return -1;
if (alen > blen) return 1;
return 0;
}
rbtree_node *rbtree_mini(rbtree *T, rbtree_node *x) {
while (x->left != T->nil) {
x = x->left;
}
return x;
}
rbtree_node *rbtree_maxi(rbtree *T, rbtree_node *x) {
while (x->right != T->nil) {
x = x->right;
}
return x;
}
rbtree_node *rbtree_successor(rbtree *T, rbtree_node *x) {
rbtree_node *y = x->parent;
if (x->right != T->nil) {
return rbtree_mini(T, x->right);
}
while ((y != T->nil) && (x == y->right)) {
x = y;
y = y->parent;
}
return y;
}
void rbtree_left_rotate(rbtree *T, rbtree_node *x) {
rbtree_node *y = x->right; // x --> y , y --> x, right --> left, left --> right
x->right = y->left; //1 1
if (y->left != T->nil) { //1 2
y->left->parent = x;
}
y->parent = x->parent; //1 3
if (x->parent == T->nil) { //1 4
T->root = y;
} else if (x == x->parent->left) {
x->parent->left = y;
} else {
x->parent->right = y;
}
y->left = x; //1 5
x->parent = y; //1 6
}
void rbtree_right_rotate(rbtree *T, rbtree_node *y) {
rbtree_node *x = y->left;
y->left = x->right;
if (x->right != T->nil) {
x->right->parent = y;
}
x->parent = y->parent;
if (y->parent == T->nil) {
T->root = x;
} else if (y == y->parent->right) {
y->parent->right = x;
} else {
y->parent->left = x;
}
x->right = y;
y->parent = x;
}
void rbtree_insert_fixup(rbtree *T, rbtree_node *z) {
while (z->parent->color == RED) { //z ---> RED
if (z->parent == z->parent->parent->left) {
rbtree_node *y = z->parent->parent->right;
if (y->color == RED) {
z->parent->color = BLACK;
y->color = BLACK;
z->parent->parent->color = RED;
z = z->parent->parent; //z --> RED
} else {
if (z == z->parent->right) {
z = z->parent;
rbtree_left_rotate(T, z);
}
z->parent->color = BLACK;
z->parent->parent->color = RED;
rbtree_right_rotate(T, z->parent->parent);
}
}else {
rbtree_node *y = z->parent->parent->left;
if (y->color == RED) {
z->parent->color = BLACK;
y->color = BLACK;
z->parent->parent->color = RED;
z = z->parent->parent; //z --> RED
} else {
if (z == z->parent->left) {
z = z->parent;
rbtree_right_rotate(T, z);
}
z->parent->color = BLACK;
z->parent->parent->color = RED;
rbtree_left_rotate(T, z->parent->parent);
}
}
}
T->root->color = BLACK;
}
int rbtree_insert(rbtree *T, rbtree_node *z) {
rbtree_node *y = T->nil;
rbtree_node *x = T->root;
while (x != T->nil) {
y = x;
int c = kvs_keycmp(z->key, z->key_len, x->key, x->key_len);
if (c < 0) {
x = x->left;
} else if (c > 0) {
x = x->right;
} else {
return -1;
}
}
z->parent = y;
if (y == T->nil) {
T->root = z;
}else{
int c = kvs_keycmp(z->key, z->key_len, y->key, y->key_len);
if (c < 0) y->left = z;
else y->right = z;
}
z->left = T->nil;
z->right = T->nil;
z->color = RED;
rbtree_insert_fixup(T, z);
return 0;
}
void rbtree_delete_fixup(rbtree *T, rbtree_node *x) {
while ((x != T->root) && (x->color == BLACK)) {
if (x == x->parent->left) {
rbtree_node *w= x->parent->right;
if (w->color == RED) {
w->color = BLACK;
x->parent->color = RED;
rbtree_left_rotate(T, x->parent);
w = x->parent->right;
}
if ((w->left->color == BLACK) && (w->right->color == BLACK)) {
w->color = RED;
x = x->parent;
} else {
if (w->right->color == BLACK) {
w->left->color = BLACK;
w->color = RED;
rbtree_right_rotate(T, w);
w = x->parent->right;
}
w->color = x->parent->color;
x->parent->color = BLACK;
w->right->color = BLACK;
rbtree_left_rotate(T, x->parent);
x = T->root;
}
} else {
rbtree_node *w = x->parent->left;
if (w->color == RED) {
w->color = BLACK;
x->parent->color = RED;
rbtree_right_rotate(T, x->parent);
w = x->parent->left;
}
if ((w->left->color == BLACK) && (w->right->color == BLACK)) {
w->color = RED;
x = x->parent;
} else {
if (w->left->color == BLACK) {
w->right->color = BLACK;
w->color = RED;
rbtree_left_rotate(T, w);
w = x->parent->left;
}
w->color = x->parent->color;
x->parent->color = BLACK;
w->left->color = BLACK;
rbtree_right_rotate(T, x->parent);
x = T->root;
}
}
}
x->color = BLACK;
}
rbtree_node *rbtree_delete(rbtree *T, rbtree_node *z) {
rbtree_node *y = T->nil;
rbtree_node *x = T->nil;
if ((z->left == T->nil) || (z->right == T->nil)) {
y = z;
} else {
y = rbtree_successor(T, z);
}
if (y->left != T->nil) {
x = y->left;
} else if (y->right != T->nil) {
x = y->right;
}
x->parent = y->parent;
if (y->parent == T->nil) {
T->root = x;
} else if (y == y->parent->left) {
y->parent->left = x;
} else {
y->parent->right = x;
}
if (y != z) {
uint8_t *ktmp = z->key; z->key = y->key; y->key = ktmp;
uint32_t ltmp = z->key_len; z->key_len = y->key_len; y->key_len = ltmp;
uint8_t *vtmp = z->value; z->value = y->value; y->value = vtmp;
uint32_t tlen = z->value_len; z->value_len = y->value_len; y->value_len = tlen;
}
if (y->color == BLACK) {
rbtree_delete_fixup(T, x);
}
return y;
}
rbtree_node *rbtree_search(rbtree *T, KEY_TYPE* key, uint32_t keylen) {
rbtree_node *node = T->root;
while (node != T->nil) {
int c = kvs_keycmp(key, keylen, node->key, node->key_len);
if (c < 0) node = node->left;
else if (c > 0) node = node->right;
else return node;
}
return T->nil;
}
void rbtree_traversal(rbtree *T, rbtree_node *node) {
if (node != T->nil) {
rbtree_traversal(T, node->left);
printf("key:%s, color:%d\n", (char*)node->key, node->color);
rbtree_traversal(T, node->right);
}
}
typedef struct _rbtree kvs_rbtree_t;
kvs_rbtree_t global_rbtree;
// 5 + 2
int kvs_rbtree_create(kvs_rbtree_t *inst) {
if (inst == NULL) return 1;
inst->nil = (rbtree_node*)kvs_malloc(sizeof(rbtree_node));
if (!inst->nil) return 2;
inst->nil->color = BLACK;
inst->nil->left = inst->nil->right = inst->nil->parent = inst->nil;
inst->root = inst->nil;
return 0;
}
void kvs_rbtree_destroy(kvs_rbtree_t *inst) {
if (inst == NULL) return ;
rbtree_node *node = NULL;
while (inst->root != inst->nil) {
rbtree_node *mini = rbtree_mini(inst, node);
rbtree_node *cur = rbtree_delete(inst, mini);
if (cur != inst->nil) {
if (cur->key) kvs_free(cur->key);
if (cur->value) kvs_free(cur->value);
kvs_free(cur);
}
}
kvs_free(inst->nil);
inst->nil = NULL;
inst->root = NULL;
return ;
}
/*
* return: <0 error; 0 success; 1 exist
*/
int kvs_rbtree_set(kvs_rbtree_t *inst, const void *key, uint32_t key_len, const void *value, uint32_t value_len) {
if (!inst || !key || !value) return -1;
rbtree_node *node = (rbtree_node*)kvs_malloc(sizeof(rbtree_node));
if (!node) return -2;
memset(node, 0, sizeof(*node));
node->key = (uint8_t*)kvs_malloc(key_len);
if (!node->key) {
kvs_free(node);return -2;
}
memcpy(node->key, key, key_len);
node->key_len = key_len;
node->value = (uint8_t*)kvs_malloc(value_len);
if (!node->value) { kvs_free(node->key); kvs_free(node); return -2; }
if (value_len) memcpy(node->value, value, value_len);
node->value_len = value_len;
if(rbtree_insert(inst, node) < 0){
kvs_free(node->value);
kvs_free(node->key);
kvs_free(node);
return 1;
}
return 0;
}
/*
* @return: NULL notexist, NOTNULL exist
*/
void* kvs_rbtree_get(kvs_rbtree_t *inst, const void *key, uint32_t key_len, uint32_t *out_valuelen) {
if (!inst || !key || key_len == 0 || !out_valuelen) return NULL;
rbtree_node *node = rbtree_search(inst, (uint8_t *)key, key_len);
if (!node) return NULL; // no exist
if (node == inst->nil) return NULL;
*out_valuelen = node->value_len;
return node->value;
}
/*
* @return < 0, error; =0, success; >0, no exist
*/
int kvs_rbtree_del(rbtree *inst, const void *key, uint32_t key_len) {
if (!inst || !key || key_len == 0) return -1;
rbtree_node *node = rbtree_search(inst, (uint8_t *)key, key_len);
if (!node) return 1; // no exist
if (node == inst->nil) return 1;
rbtree_node *cur = rbtree_delete(inst, node);
if (cur != inst->nil) {
if (cur->key) kvs_free(cur->key);
if (cur->value) kvs_free(cur->value);
kvs_free(cur);
}
return 0;
}
/*
* @return : < 0, error; =0, success; >0, no exist
*/
int kvs_rbtree_mod(kvs_rbtree_t *inst, const void *key, uint32_t key_len, const void *value, uint32_t value_len) {
if (!inst || !key || key_len==0 || !value) return -1;
rbtree_node *node = rbtree_search(inst, (uint8_t *)key, key_len);
if (!node) return 1; // no exist
if (node == inst->nil) return 1;
if (node->value) kvs_free(node->value);
node->value = (uint8_t*)kvs_malloc(value_len);
if (!node->value) { node->value_len = 0; return -2; }
if (value_len) memcpy(node->value, value, value_len);
node->value_len = value_len;
return 0;
}
/*
* @return 0: exist, 1: no exist
*/
int kvs_rbtree_exist(kvs_rbtree_t *inst, const void *key, uint32_t key_len) {
if (!inst || !key || key_len == 0) return -1;
rbtree_node *node = rbtree_search(inst, (uint8_t*)key, key_len);
if (!node) return 1; // no exist
if (node == inst->nil) return 1;
return 0;
}
static int kvs_rbtree_save_node(FILE *fp, kvs_rbtree_t *inst, rbtree_node *node) {
if (!fp || !inst || !node) return -1;
if (node == inst->nil) return 0;
int rc = 0;
rc = kvs_rbtree_save_node(fp, inst, node->left);
if (rc < 0) return rc;
uint32_t klen_n = htonl(node->key_len);
uint32_t vlen_n = htonl(node->value_len);
if (kvs_write_file(fp, &klen_n, sizeof(klen_n)) < 0) return -1;
if (kvs_write_file(fp, &vlen_n, sizeof(vlen_n)) < 0) return -1;
if (node->key_len) {
if (!node->key) return -1;
if (kvs_write_file(fp, node->key, node->key_len) < 0) return -1;
}
if (node->value_len) {
if (!node->value) return -1;
if (kvs_write_file(fp, node->value, node->value_len) < 0) return -1;
}
rc = kvs_rbtree_save_node(fp, inst, node->right);
if (rc < 0) return rc;
return 0;
}
// 0 success, <0 error
int kvs_rbtree_save(kvs_rbtree_t *inst, const char* filename){
if (!inst || !filename) return -1;
FILE *fp = fopen(filename, "wb");
if (!fp) return -2;
int rc = kvs_rbtree_save_node(fp, inst, inst->root);
if (fflush(fp) != 0) rc = -3;
fclose(fp);
return rc;
}
int kvs_rbtree_load(kvs_rbtree_t *inst, const char* filename){
if (!inst || !filename) return -1;
FILE *fp = fopen(filename, "rb");
if (!fp) return -2;
for (;;) {
uint32_t klen_n = 0, vlen_n = 0;
if (kvs_read_file(fp, &klen_n, 4) < 0) { fclose(fp); return -3; }
if (kvs_read_file(fp, &vlen_n, 4) < 0) { fclose(fp); return -3; }
uint32_t klen = ntohl(klen_n);
uint32_t vlen = ntohl(vlen_n);
if (klen == 0) { fclose(fp); return -3; }
uint8_t *keybuf = (uint8_t*)kvs_malloc((size_t)klen);
if (!keybuf) { fclose(fp); return -4; }
if (kvs_read_file(fp, keybuf, (size_t)klen) < 0) {
kvs_free(keybuf);
fclose(fp);
return -3;
}
uint8_t *valbuf = NULL;
if (vlen > 0) {
valbuf = (uint8_t*)kvs_malloc((size_t)vlen);
if (!valbuf) {
kvs_free(keybuf);
fclose(fp);
return -4;
}
if (kvs_read_file(fp, valbuf, (size_t)vlen) < 0) {
kvs_free(valbuf);
kvs_free(keybuf);
fclose(fp);
return -3;
}
}
int rc = kvs_rbtree_set(inst, keybuf, klen, valbuf, vlen);
if (vlen > 0) kvs_free(valbuf);
if (rc < 0) { // error
fclose(fp);
return -5;
}
}
fclose(fp);
return 0;
}

495
kvs_rw_tools.c
View File

@@ -17,6 +17,49 @@ extern kvs_hash_t global_hash;
extern int global_cmd_log_fd;
#include <errno.h>
int write_full(int fd, const void *buf, size_t len)
{
const uint8_t *p = buf;
while (len > 0) {
ssize_t n = write(fd, p, len);
if (n < 0) {
if (errno == EINTR)
continue;
return -1;
}
p += n;
len -= n;
}
return 0;
}
// 1 read n suc, 0 eof, -1 error
int read_full(int fd, void *buf, size_t n)
{
uint8_t *p = (uint8_t *)buf;
size_t got = 0;
while (got < n) {
ssize_t r = read(fd, p + got, n - got);
if (r > 0) {
got += (size_t)r;
continue;
}
if (r == 0) {
return (got == 0) ? 0 : -1;
}
/* r < 0 */
if (errno == EINTR) {
continue;
}
return -1;
}
return 1;
}
// 0 suc, -1 err
int kvs_need(const uint8_t *p, const uint8_t *end, size_t n) {
return (p + n <= end) ? 0 : -1;
@@ -101,455 +144,3 @@ int kvs_read_file(FILE *fp, void *buf, size_t n){
}
return 0;
}
// return: -1 fail, 0 half, >0 consumed
int kvs_parse_one_cmd(const uint8_t *request, int request_length, kvs_req_t *req_out){
if (!request || request_length <= 0 || !req_out) return -1;
req_out->op = 0;
req_out->argc = 0;
req_out->args = NULL;
const uint8_t *p = request;
const uint8_t *end = request + (size_t)request_length;
// OP + ARGC
if (kvs_need(p, end, 2)) {
return 0; // NEED_MORE
}
uint8_t op = 0, argc = 0;
if (kvs_read_u8(&p, end, &op) < 0) return -1;
if (kvs_read_u8(&p, end, &argc) < 0) return -1;
if (argc > KVS_MAX_ARGC) return -1;
// 先扫描一遍确认整条命令数据都在 buffer 里
const uint8_t *scan = p;
uint32_t lens[KVS_MAX_ARGC];
if (argc > 0) {
for (uint8_t i = 0; i < argc; i++) {
if (kvs_need(scan, end, 4)) {
return 0; // NEED_MORE
}
uint32_t alen = 0;
if (kvs_read_u32(&scan, end, &alen) < 0) return -1;
// 防御：单个参数长度限制
if (alen > KVS_MAX_ARGLEN) return -1;
// 防御：scan + alen 越界 / 半包
if (kvs_need(scan, end, (size_t)alen)) {
return 0; // NEED_MORE
}
lens[i] = alen;
scan += alen;
}
}
size_t total_len = (size_t)(scan - request);
if (total_len > KVS_MAX_CMD_BYTES) return -1;
req_out->op = op;
req_out->argc = argc;
if (argc == 0) {
return (int)total_len;
}
kvs_arg_t *args = (kvs_arg_t *)kvs_malloc((size_t)argc * sizeof(kvs_arg_t));
if (!args) {
kvs_free_request(req_out);
return -1;
}
memset(args, 0, (size_t)argc * sizeof(kvs_arg_t));
for (uint8_t i = 0; i < argc; i++) {
uint32_t alen = 0;
if (kvs_read_u32(&p, end, &alen) < 0) {
kvs_free(args);
kvs_free_request(req_out);
return -1;
}
// alen 与 lens[i] 应当一致（扫描时读过），不一致说明解析器/输入异常
if (alen != lens[i]) {
kvs_free(args);
kvs_free_request(req_out);
return -1;
}
args[i].len = alen;
args[i].data = p; // 直接指向输入 buffer（零拷贝）
p += alen;
}
req_out->args = args;
return (int)(p - request);
}
void kvs_free_request(kvs_req_t *req) {
if (!req) return;
if (req->args) {
kvs_free(req->args);
req->args = NULL;
}
req->op = 0;
req->argc = 0;
}
/**
* 输入：req
* 输出：rsp
* 返回：-1 失败，参数错误，0 成功
*/
int kvs_execute_one_cmd(const kvs_req_t *req, kvs_rsp_t *rsp_out) {
if(!req || !rsp_out) return -1;
rsp_out->op = req->op;
rsp_out->status = KVS_STATUS_ERROR;
rsp_out->data = NULL;
rsp_out->dlen = 0;
int argc = req->argc;
int op = req->op;
kvs_arg_t *argv = req->args;
uint32_t key_len = 0;
const void *key = NULL;
uint32_t value_len = 0;
const void *val = NULL;
if(argc == 1){
key_len = argv[0].len;
key = argv[0].data;
}else if(argc == 2){
key_len = argv[0].len;
key = argv[0].data;
value_len = argv[1].len;
val = argv[1].data;
}
// 基本参数校验（按你原有命令语义）
switch (op) {
case KVS_CMD_SET:
case KVS_CMD_MOD:
case KVS_CMD_RSET:
case KVS_CMD_RMOD:
case KVS_CMD_HSET:
case KVS_CMD_HMOD:
if (argc != 2 || !key || !val) { rsp_out->status = KVS_STATUS_BADREQ; return -1; }
break;
case KVS_CMD_GET:
case KVS_CMD_DEL:
case KVS_CMD_EXIST:
case KVS_CMD_RGET:
case KVS_CMD_RDEL:
case KVS_CMD_REXIST:
case KVS_CMD_HGET:
case KVS_CMD_HDEL:
case KVS_CMD_HEXIST:
if (argc != 1 || !key) { rsp_out->status = KVS_STATUS_BADREQ; return -1; }
break;
case KVS_CMD_SAVE:
if(argc != 0) { rsp_out->status = KVS_STATUS_BADREQ; return -1; }
break;
default:
rsp_out->status = KVS_STATUS_BADREQ;
return -1;
}
int ret = 0;
const char *result = NULL;
switch (op) {
#if ENABLE_ARRAY
case KVS_CMD_SET:
ret = kvs_array_set_bin(&global_array, key, key_len, val, value_len);
if (ret < 0) rsp_out->status = KVS_STATUS_ERROR;
else if (ret == 0) rsp_out->status = KVS_STATUS_OK;
else rsp_out->status = KVS_STATUS_EXIST;
return 0;
case KVS_CMD_GET:
result = kvs_array_get_bin(&global_array, key, key_len, &value_len);
if (!result) { rsp_out->status = KVS_STATUS_NO_EXIST; return 0; }
rsp_out->status = KVS_STATUS_OK;
rsp_out->data = result;
rsp_out->dlen = (uint32_t)value_len;
return 0;
case KVS_CMD_DEL:
ret = kvs_array_del_bin(&global_array, key, key_len);
if (ret < 0) rsp_out->status = KVS_STATUS_ERROR;
else if (ret == 0) rsp_out->status = KVS_STATUS_OK;
else rsp_out->status = KVS_STATUS_NO_EXIST;
return 0;
case KVS_CMD_MOD:
ret = kvs_array_mod_bin(&global_array, key, key_len, val, value_len);
if (ret < 0) rsp_out->status = KVS_STATUS_ERROR;
else if (ret == 0) rsp_out->status = KVS_STATUS_OK;
else rsp_out->status = KVS_STATUS_NO_EXIST;
return 0;
case KVS_CMD_EXIST:
ret = kvs_array_exist_bin(&global_array, key, key_len);
rsp_out->status = (ret == 0) ? KVS_STATUS_EXIST : KVS_STATUS_NO_EXIST;
return 0;
#endif
#if ENABLE_RBTREE
case KVS_CMD_RSET:
ret = kvs_rbtree_set(&global_rbtree, (char*)key, (char*)val);
if (ret < 0) rsp_out->status = KVS_STATUS_ERROR;
else if (ret == 0) rsp_out->status = KVS_STATUS_OK;
else rsp_out->status = KVS_STATUS_EXIST;
return 0;
case KVS_CMD_RGET:
result = kvs_rbtree_get(&global_rbtree, (char*)key);
if (!result) { rsp_out->status = KVS_STATUS_NO_EXIST; return 0; }
rsp_out->status = KVS_STATUS_OK;
rsp_out->data = result;
rsp_out->dlen = (uint32_t)strlen(result);
return 0;
case KVS_CMD_RDEL:
ret = kvs_rbtree_del(&global_rbtree, (char*)key);
if (ret < 0) rsp_out->status = KVS_STATUS_ERROR;
else if (ret == 0) rsp_out->status = KVS_STATUS_OK;
else rsp_out->status = KVS_STATUS_NO_EXIST;
return 0;
case KVS_CMD_RMOD:
ret = kvs_rbtree_mod(&global_rbtree, (char*)key, (char*)val);
if (ret < 0) rsp_out->status = KVS_STATUS_ERROR;
else if (ret == 0) rsp_out->status = KVS_STATUS_OK;
else rsp_out->status = KVS_STATUS_NO_EXIST;
return 0;
case KVS_CMD_REXIST:
ret = kvs_rbtree_exist(&global_rbtree, (char*)key);
rsp_out->status = (ret == 0) ? KVS_STATUS_EXIST : KVS_STATUS_NO_EXIST;
return 0;
#endif
#if ENABLE_HASH
case KVS_CMD_HSET:
ret = kvs_hash_set_bin(&global_hash, key, key_len, val, value_len);
if (ret < 0) rsp_out->status = KVS_STATUS_ERROR;
else if (ret == 0) rsp_out->status = KVS_STATUS_OK;
else rsp_out->status = KVS_STATUS_EXIST;
return 0;
case KVS_CMD_HGET:
result = kvs_hash_get_bin(&global_hash, key, key_len, &value_len);
if (!result) { rsp_out->status = KVS_STATUS_NO_EXIST; return 0; }
rsp_out->status = KVS_STATUS_OK;
rsp_out->data = result;
rsp_out->dlen = (uint32_t)value_len;
return 0;
case KVS_CMD_HDEL:
ret = kvs_hash_del_bin(&global_hash, key, key_len);
if (ret < 0) rsp_out->status = KVS_STATUS_ERROR;
else if (ret == 0) rsp_out->status = KVS_STATUS_OK;
else rsp_out->status = KVS_STATUS_NO_EXIST;
return 0;
case KVS_CMD_HMOD:
ret = kvs_hash_mod_bin(&global_hash, key, key_len, val, value_len);
if (ret < 0) rsp_out->status = KVS_STATUS_ERROR;
else if (ret == 0) rsp_out->status = KVS_STATUS_OK;
else rsp_out->status = KVS_STATUS_NO_EXIST;
return 0;
case KVS_CMD_HEXIST:
ret = kvs_hash_exist_bin(&global_hash, key, key_len);
rsp_out->status = (ret == 0) ? KVS_STATUS_EXIST : KVS_STATUS_NO_EXIST;
return 0;
#endif
case KVS_CMD_SAVE:
ret = kvs_save_to_file();
if(ret == 0) rsp_out->status = KVS_STATUS_OK;
else rsp_out->status = KVS_STATUS_ERROR;
return 0;
default:
rsp_out->status = KVS_STATUS_BADREQ;
return -1;
}
return -1;
}
/**
* 构建单条响应
* 返回：-1 失败，>=0 响应长度
*/
int kvs_build_one_rsp(const kvs_rsp_t *results, uint8_t *response, size_t response_cap){
if (!results || !response) return -1;
const uint8_t *end = response + response_cap;
uint8_t *p = response;
// 计算所需长度：1 + 1 + 4 + dlen
// 注意防止 size_t 溢出
size_t need = 1u + 1u + 4u + (size_t)results->dlen;
if (need > response_cap) return -1;
if (kvs_write_u8(&p, end, results->op) < 0) return -1;
if (kvs_write_u8(&p, end, results->status) < 0) return -1;
if (kvs_write_u32(&p, end, results->dlen) < 0) return -1;
if (results->dlen > 0) {
if (!results->data) return -1; // 有长度却没指针，视为错误
if (kvs_need(p, end, (size_t)results->dlen) < 0) return -1;
memcpy(p, results->data, results->dlen);
p += results->dlen;
}
return (int)(p - response);
}
int kvs_save_to_file(){
#if ENABLE_ARRAY
int ret = kvs_array_save(&global_array, KVS_ARRAY_FILE);
#endif
#if ENABLE_RBTREE
#endif
#if ENABLE_HASH
#endif
ksv_clear_log(global_cmd_log_fd);
return ret;
}
#include <errno.h>
int write_full(int fd, const void *buf, size_t len)
{
const uint8_t *p = buf;
while (len > 0) {
ssize_t n = write(fd, p, len);
if (n < 0) {
if (errno == EINTR)
continue;
return -1;
}
p += n;
len -= n;
}
return 0;
}
// 1 read n suc, 0 eof, -1 error
int read_full(int fd, void *buf, size_t n)
{
uint8_t *p = (uint8_t *)buf;
size_t got = 0;
while (got < n) {
ssize_t r = read(fd, p + got, n - got);
if (r > 0) {
got += (size_t)r;
continue;
}
if (r == 0) {
return (got == 0) ? 0 : -1;
}
/* r < 0 */
if (errno == EINTR) {
continue;
}
return -1;
}
return 1;
}
int kvs_save_cmd_to_logfile(const uint8_t *cmd, size_t len, int logfd){
if (logfd < 0 || !cmd || len == 0)
return -1;
if (len > UINT32_MAX)
return -2;
uint32_t nlen = htonl((uint32_t)len);
if (write_full(logfd, &nlen, sizeof(nlen)) < 0)
return -3;
if (write_full(logfd, cmd, len) < 0)
return -4;
if (fsync(logfd) < 0)
return -5;
return 0;
}
int kvs_replay_log(const char *logfile, int logfd){
if (!logfile|| logfd<0) return -1;
for (;;) {
uint32_t nlen = 0;
int hr = read_full(logfd, &nlen, sizeof(nlen));
if (hr == 0) break; /* EOF：正常结束 */
if (hr < 0) { return -2; } /* 半截头 */
uint32_t len = ntohl(nlen);
if (len == 0) { return -3; }
uint8_t *cmd = (uint8_t *)kvs_malloc(len);
if (!cmd) { return -5; }
int pr = read_full(logfd, cmd, len);
if (pr <= 0) { /* 半截 payload */
kvs_free(cmd);
return -6;
}
kvs_req_t req;
memset(&req, 0, sizeof(req));
int clen = kvs_parse_one_cmd(cmd, (int)len, &req);
if (clen <= 0 || clen != (int)len) {
kvs_free_request(&req);
kvs_free(cmd);
return -7;
}
kvs_rsp_t rsp;
memset(&rsp, 0, sizeof(rsp));
if (kvs_execute_one_cmd(&req, &rsp) < 0) {
kvs_free_request(&req);
kvs_free(cmd);
return -8;
}
kvs_free_request(&req);
kvs_free(cmd);
}
return 0;
}
/**
* clear log file not close
*/
int ksv_clear_log(int logfd){
if(logfd < 0) return -1;
ftruncate(logfd, 0);
lseek(logfd, 0, SEEK_SET);
return 0;
}

10
kvs_rw_tools.h
View File

@@ -16,6 +16,8 @@ int kvs_write_u32(uint8_t **pp, const uint8_t *end, uint32_t v);
int kvs_write_file(FILE *fp, const void *buf, size_t n);
int kvs_read_file(FILE *fp, void *buf, size_t n);
int write_full(int fd, const void *buf, size_t len);
int read_full(int fd, void *buf, size_t n);
/**
* Request
@@ -39,7 +41,7 @@ enum {
KVS_STATUS_BADREQ = 4
};
enum {
typedef enum {
KVS_CMD_START = 0,
// array
KVS_CMD_SET = KVS_CMD_START,
@@ -62,7 +64,7 @@ enum {
KVS_CMD_SAVE,
KVS_CMD_COUNT,
};
}kvs_cmd_t;
typedef struct kvs_arg_s{
uint32_t len;
@@ -70,13 +72,13 @@ typedef struct kvs_arg_s{
} kvs_arg_t;
typedef struct kvs_req_s{
uint8_t op;
kvs_cmd_t op;
uint8_t argc;
kvs_arg_t *args;
}kvs_req_t;
typedef struct kvs_rsp_s{
uint8_t op;
kvs_cmd_t op;
uint8_t status;
uint32_t dlen;
const uint8_t *data;

511
kvstore.c
View File

@@ -42,211 +42,350 @@ const char *response[] = {
};
// return: -1 fail, 0 half, >0 consumed
int kvs_parse_one_cmd(const uint8_t *request, int request_length, kvs_req_t *req_out){
if (!request || request_length <= 0 || !req_out) return -1;
int kvs_split_token(char *msg, char *tokens[]) {
req_out->op = KVS_CMD_COUNT;
req_out->argc = 0;
req_out->args = NULL;
if (msg == NULL || tokens == NULL) return -1;
const uint8_t *p = request;
const uint8_t *end = request + (size_t)request_length;
int idx = 0;
char *token = strtok(msg, " ");
while (token != NULL) {
//printf("idx: %d, %s\n", idx, token);
tokens[idx ++] = token;
token = strtok(NULL, " ");
// OP + ARGC
if (kvs_need(p, end, 2)) {
return 0; // NEED_MORE
}
return idx;
uint8_t op = 0, argc = 0;
if (kvs_read_u8(&p, end, &op) < 0) return -1;
if (kvs_read_u8(&p, end, &argc) < 0) return -1;
if (argc > KVS_MAX_ARGC) return -1;
// 先扫描一遍确认整条命令数据都在 buffer 里
const uint8_t *scan = p;
uint32_t lens[KVS_MAX_ARGC];
if (argc > 0) {
for (uint8_t i = 0; i < argc; i++) {
if (kvs_need(scan, end, 4)) {
return 0; // NEED_MORE
}
uint32_t alen = 0;
if (kvs_read_u32(&scan, end, &alen) < 0) return -1;
// 防御：单个参数长度限制
if (alen > KVS_MAX_ARGLEN) return -1;
// 防御：scan + alen 越界 / 半包
if (kvs_need(scan, end, (size_t)alen)) {
return 0; // NEED_MORE
}
lens[i] = alen;
scan += alen;
}
}
size_t total_len = (size_t)(scan - request);
if (total_len > KVS_MAX_CMD_BYTES) return -1;
req_out->op = op;
req_out->argc = argc;
if (argc == 0) {
return (int)total_len;
}
kvs_arg_t *args = (kvs_arg_t *)kvs_malloc((size_t)argc * sizeof(kvs_arg_t));
if (!args) {
kvs_free_request(req_out);
return -1;
}
memset(args, 0, (size_t)argc * sizeof(kvs_arg_t));
for (uint8_t i = 0; i < argc; i++) {
uint32_t alen = 0;
if (kvs_read_u32(&p, end, &alen) < 0) {
kvs_free(args);
kvs_free_request(req_out);
return -1;
}
// alen 与 lens[i] 应当一致（扫描时读过），不一致说明解析器/输入异常
if (alen != lens[i]) {
kvs_free(args);
kvs_free_request(req_out);
return -1;
}
args[i].len = alen;
args[i].data = p; // 直接指向输入 buffer（零拷贝）
p += alen;
}
req_out->args = args;
return (int)(p - request);
}
void kvs_free_request(kvs_req_t *req) {
if (!req) return;
if (req->args) {
kvs_free(req->args);
req->args = NULL;
}
req->op = KVS_CMD_COUNT;
req->argc = 0;
}
// SET Key Value
// tokens[0] : SET
// tokens[1] : Key
// tokens[2] : Value
/**
* 输入：req
* 输出：rsp
* 返回：-1 失败，参数错误，0 成功
*/
int kvs_execute_one_cmd(const kvs_req_t *req, kvs_rsp_t *rsp_out) {
if(!req || !rsp_out) return -1;
rsp_out->op = req->op;
rsp_out->status = KVS_STATUS_ERROR;
rsp_out->data = NULL;
rsp_out->dlen = 0;
#if !BIN_SAFE
int kvs_filter_protocol(char **tokens, int count, char *response) {
int argc = req->argc;
kvs_cmd_t op = req->op;
kvs_arg_t *argv = req->args;
if (tokens[0] == NULL || count == 0 || response == NULL) return -1;
uint32_t key_len = 0;
const void *key = NULL;
uint32_t value_len = 0;
const void *val = NULL;
int cmd = KVS_CMD_START;
for (cmd = KVS_CMD_START;cmd < KVS_CMD_COUNT;cmd ++) {
if (strcmp(tokens[0], command[cmd]) == 0) {
if(argc == 1){
key_len = argv[0].len;
key = argv[0].data;
}else if(argc == 2){
key_len = argv[0].len;
key = argv[0].data;
value_len = argv[1].len;
val = argv[1].data;
}
// 基本参数校验（按你原有命令语义）
switch (op) {
case KVS_CMD_SET:
case KVS_CMD_MOD:
case KVS_CMD_RSET:
case KVS_CMD_RMOD:
case KVS_CMD_HSET:
case KVS_CMD_HMOD:
if (argc != 2 || !key || !val) { rsp_out->status = KVS_STATUS_BADREQ; return -1; }
break;
}
case KVS_CMD_GET:
case KVS_CMD_DEL:
case KVS_CMD_EXIST:
case KVS_CMD_RGET:
case KVS_CMD_RDEL:
case KVS_CMD_REXIST:
case KVS_CMD_HGET:
case KVS_CMD_HDEL:
case KVS_CMD_HEXIST:
if (argc != 1 || !key) { rsp_out->status = KVS_STATUS_BADREQ; return -1; }
break;
case KVS_CMD_SAVE:
if(argc != 0) { rsp_out->status = KVS_STATUS_BADREQ; return -1; }
break;
default:
rsp_out->status = KVS_STATUS_BADREQ;
return -1;
}
int length = 0;
int ret = 0;
char *key = tokens[1];
char *value = tokens[2];
const char *result = NULL;
switch(cmd) {
switch (op) {
#if ENABLE_ARRAY
case KVS_CMD_SET:
ret = kvs_array_set(&global_array ,key, value);
if (ret < 0) {
length = sprintf(response, "ERROR\r\n");
} else if (ret == 0) {
length = sprintf(response, "OK\r\n");
} else {
length = sprintf(response, "EXIST\r\n");
}
ret = kvs_array_set_bin(&global_array, key, key_len, val, value_len);
if (ret < 0) rsp_out->status = KVS_STATUS_ERROR;
else if (ret == 0) rsp_out->status = KVS_STATUS_OK;
else rsp_out->status = KVS_STATUS_EXIST;
return 0;
case KVS_CMD_GET:
result = kvs_array_get_bin(&global_array, key, key_len, &value_len);
if (!result) { rsp_out->status = KVS_STATUS_NO_EXIST; return 0; }
rsp_out->status = KVS_STATUS_OK;
rsp_out->data = (uint8_t*)result;
rsp_out->dlen = (uint32_t)value_len;
return 0;
break;
case KVS_CMD_GET: {
char *result = kvs_array_get(&global_array, key);
if (result == NULL) {
length = sprintf(response, "NO EXIST\r\n");
} else {
length = sprintf(response, "%s\r\n", result);
}
break;
}
case KVS_CMD_DEL:
ret = kvs_array_del(&global_array ,key);
if (ret < 0) {
length = sprintf(response, "ERROR\r\n");
} else if (ret == 0) {
length = sprintf(response, "OK\r\n");
} else {
length = sprintf(response, "NO EXIST\r\n");
}
break;
ret = kvs_array_del_bin(&global_array, key, key_len);
if (ret < 0) rsp_out->status = KVS_STATUS_ERROR;
else if (ret == 0) rsp_out->status = KVS_STATUS_OK;
else rsp_out->status = KVS_STATUS_NO_EXIST;
return 0;
case KVS_CMD_MOD:
ret = kvs_array_mod(&global_array ,key, value);
if (ret < 0) {
length = sprintf(response, "ERROR\r\n");
} else if (ret == 0) {
length = sprintf(response, "OK\r\n");
} else {
length = sprintf(response, "NO EXIST\r\n");
}
break;
ret = kvs_array_mod_bin(&global_array, key, key_len, val, value_len);
if (ret < 0) rsp_out->status = KVS_STATUS_ERROR;
else if (ret == 0) rsp_out->status = KVS_STATUS_OK;
else rsp_out->status = KVS_STATUS_NO_EXIST;
return 0;
case KVS_CMD_EXIST:
ret = kvs_array_exist(&global_array ,key);
if (ret == 0) {
length = sprintf(response, "EXIST\r\n");
} else {
length = sprintf(response, "NO EXIST\r\n");
}
break;
ret = kvs_array_exist_bin(&global_array, key, key_len);
rsp_out->status = (ret == 0) ? KVS_STATUS_EXIST : KVS_STATUS_NO_EXIST;
return 0;
#endif
// rbtree
#if ENABLE_RBTREE
case KVS_CMD_RSET:
ret = kvs_rbtree_set(&global_rbtree ,key, value);
if (ret < 0) {
length = sprintf(response, "ERROR\r\n");
} else if (ret == 0) {
length = sprintf(response, "OK\r\n");
} else {
length = sprintf(response, "EXIST\r\n");
}
ret = kvs_rbtree_set(&global_rbtree, key, key_len, val, value_len);
if (ret < 0) rsp_out->status = KVS_STATUS_ERROR;
else if (ret == 0) rsp_out->status = KVS_STATUS_OK;
else rsp_out->status = KVS_STATUS_EXIST;
return 0;
case KVS_CMD_RGET:
result = kvs_rbtree_get(&global_rbtree, key, key_len, &value_len);
if (!result) { rsp_out->status = KVS_STATUS_NO_EXIST; return 0; }
rsp_out->status = KVS_STATUS_OK;
rsp_out->data = (uint8_t*)result;
rsp_out->dlen = (uint32_t)value_len;
return 0;
break;
case KVS_CMD_RGET: {
char *result = kvs_rbtree_get(&global_rbtree, key);
if (result == NULL) {
length = sprintf(response, "NO EXIST\r\n");
} else {
length = sprintf(response, "%s\r\n", result);
}
break;
}
case KVS_CMD_RDEL:
ret = kvs_rbtree_del(&global_rbtree ,key);
if (ret < 0) {
length = sprintf(response, "ERROR\r\n");
} else if (ret == 0) {
length = sprintf(response, "OK\r\n");
} else {
length = sprintf(response, "NO EXIST\r\n");
}
break;
ret = kvs_rbtree_del(&global_rbtree, key, key_len);
if (ret < 0) rsp_out->status = KVS_STATUS_ERROR;
else if (ret == 0) rsp_out->status = KVS_STATUS_OK;
else rsp_out->status = KVS_STATUS_NO_EXIST;
return 0;
case KVS_CMD_RMOD:
ret = kvs_rbtree_mod(&global_rbtree ,key, value);
if (ret < 0) {
length = sprintf(response, "ERROR\r\n");
} else if (ret == 0) {
length = sprintf(response, "OK\r\n");
} else {
length = sprintf(response, "NO EXIST\r\n");
}
break;
ret = kvs_rbtree_mod(&global_rbtree, key, key_len, val, value_len);
if (ret < 0) rsp_out->status = KVS_STATUS_ERROR;
else if (ret == 0) rsp_out->status = KVS_STATUS_OK;
else rsp_out->status = KVS_STATUS_NO_EXIST;
return 0;
case KVS_CMD_REXIST:
ret = kvs_rbtree_exist(&global_rbtree ,key);
if (ret == 0) {
length = sprintf(response, "EXIST\r\n");
} else {
length = sprintf(response, "NO EXIST\r\n");
}
break;
ret = kvs_rbtree_exist(&global_rbtree, key, key_len);
rsp_out->status = (ret == 0) ? KVS_STATUS_EXIST : KVS_STATUS_NO_EXIST;
return 0;
#endif
#if ENABLE_HASH
case KVS_CMD_HSET:
ret = kvs_hash_set(&global_hash ,key, value);
if (ret < 0) {
length = sprintf(response, "ERROR\r\n");
} else if (ret == 0) {
length = sprintf(response, "OK\r\n");
} else {
length = sprintf(response, "EXIST\r\n");
}
ret = kvs_hash_set_bin(&global_hash, key, key_len, val, value_len);
if (ret < 0) rsp_out->status = KVS_STATUS_ERROR;
else if (ret == 0) rsp_out->status = KVS_STATUS_OK;
else rsp_out->status = KVS_STATUS_EXIST;
return 0;
case KVS_CMD_HGET:
result = kvs_hash_get_bin(&global_hash, key, key_len, &value_len);
if (!result) { rsp_out->status = KVS_STATUS_NO_EXIST; return 0; }
rsp_out->status = KVS_STATUS_OK;
rsp_out->data = (uint8_t*)result;
rsp_out->dlen = (uint32_t)value_len;
return 0;
break;
case KVS_CMD_HGET: {
char *result = kvs_hash_get(&global_hash, key);
if (result == NULL) {
length = sprintf(response, "NO EXIST\r\n");
} else {
length = sprintf(response, "%s\r\n", result);
}
break;
}
case KVS_CMD_HDEL:
ret = kvs_hash_del(&global_hash ,key);
if (ret < 0) {
length = sprintf(response, "ERROR\r\n");
} else if (ret == 0) {
length = sprintf(response, "OK\r\n");
} else {
length = sprintf(response, "NO EXIST\r\n");
}
break;
ret = kvs_hash_del_bin(&global_hash, key, key_len);
if (ret < 0) rsp_out->status = KVS_STATUS_ERROR;
else if (ret == 0) rsp_out->status = KVS_STATUS_OK;
else rsp_out->status = KVS_STATUS_NO_EXIST;
return 0;
case KVS_CMD_HMOD:
ret = kvs_hash_mod(&global_hash ,key, value);
if (ret < 0) {
length = sprintf(response, "ERROR\r\n");
} else if (ret == 0) {
length = sprintf(response, "OK\r\n");
} else {
length = sprintf(response, "NO EXIST\r\n");
}
break;
ret = kvs_hash_mod_bin(&global_hash, key, key_len, val, value_len);
if (ret < 0) rsp_out->status = KVS_STATUS_ERROR;
else if (ret == 0) rsp_out->status = KVS_STATUS_OK;
else rsp_out->status = KVS_STATUS_NO_EXIST;
return 0;
case KVS_CMD_HEXIST:
ret = kvs_hash_exist(&global_hash ,key);
if (ret == 0) {
length = sprintf(response, "EXIST\r\n");
} else {
length = sprintf(response, "NO EXIST\r\n");
}
break;
ret = kvs_hash_exist_bin(&global_hash, key, key_len);
rsp_out->status = (ret == 0) ? KVS_STATUS_EXIST : KVS_STATUS_NO_EXIST;
return 0;
#endif
case KVS_CMD_SAVE:
ret = kvs_save_to_file();
if(ret == 0) rsp_out->status = KVS_STATUS_OK;
else rsp_out->status = KVS_STATUS_ERROR;
return 0;
default:
assert(0);
rsp_out->status = KVS_STATUS_BADREQ;
return -1;
}
return length;
return -1;
}
#endif
/**
* 构建单条响应
* 返回：-1 失败，>=0 响应长度
*/
int kvs_build_one_rsp(const kvs_rsp_t *results, uint8_t *response, size_t response_cap){
if (!results || !response) return -1;
const uint8_t *end = response + response_cap;
uint8_t *p = response;
// 计算所需长度：1 + 1 + 4 + dlen
// 注意防止 size_t 溢出
size_t need = 1u + 1u + 4u + (size_t)results->dlen;
if (need > response_cap) return -1;
if (kvs_write_u8(&p, end, (uint8_t)results->op) < 0) return -1;
if (kvs_write_u8(&p, end, results->status) < 0) return -1;
if (kvs_write_u32(&p, end, results->dlen) < 0) return -1;
if (results->dlen > 0) {
if (!results->data) return -1; // 有长度却没指针，视为错误
if (kvs_need(p, end, (size_t)results->dlen) < 0) return -1;
memcpy(p, results->data, results->dlen);
p += results->dlen;
}
return (int)(p - response);
}
int kvs_save_to_file(){
int ret = 0;
int rc = 0;
#if ENABLE_ARRAY
rc = kvs_array_save(&global_array, KVS_ARRAY_FILE);
if(rc < 0){
printf("kvs_engine_array save error\n");
ret = -1;
}
#endif
#if ENABLE_RBTREE
rc = kvs_rbtree_save(&global_rbtree, KVS_RBTREE_FILE);
if(rc < 0){
printf("kvs_engine_rbtree save error\n");
ret = -1;
}
#endif
#if ENABLE_HASH
rc = kvs_hash_save(&global_hash, KVS_HASH_FILE);
if(rc < 0){
printf("kvs_engine_hash save error\n");
ret = -1;
}
#endif
ksv_clear_log(global_cmd_log_fd);
return ret;
}
#if NEW_KVSTORE
/**
* input : request request_length
* output : response response_length
@@ -296,7 +435,9 @@ int kvs_protocol(char *request, int request_length, char *response, int *respons
}else{
// 执行成功，在这里保存到日志中。
if(rsp.status == KVS_STATUS_OK){
if(req.op == KVS_CMD_SET || req.op == KVS_CMD_MOD || req.op == KVS_CMD_DEL){
if(req.op != KVS_CMD_GET && req.op != KVS_CMD_EXIST
&& req.op != KVS_CMD_RGET && req.op != KVS_CMD_REXIST
&& req.op != KVS_CMD_HGET && req.op != KVS_CMD_HEXIST ){
kvs_save_cmd_to_logfile(p, len, global_cmd_log_fd);
}
}
@@ -319,48 +460,6 @@ int kvs_protocol(char *request, int request_length, char *response, int *respons
*response_length = out_len;
return consumed;
}
#else
/*
* msg: request message
* length: length of request message
* response: need to send
* @return : length of response
*/
int kvs_protocol(char *msg, int length, char *response) { //
// SET Key Value
// GET Key
// DEL Key
if (msg == NULL || length <= 0 || response == NULL) return -1;
//printf("recv %d : %s\n", length, msg);
char *tokens[KVS_MAX_TOKENS] = {0};
int count = kvs_split_token(msg, tokens);
if (count == -1) return -1;
//memcpy(response, msg, length);
return kvs_filter_protocol(tokens, count, response);
}
#endif
int init_cmd_log(const char *file, int *logfd){
if(!file) return -1;
int fd = open(file, O_RDWR | O_CREAT | O_APPEND, 0644);
if(fd < 0) return -2;
*logfd = fd;
return 0;
}
int destroy_cmd_log(int logfd){
close(logfd);
return 0;
}
int init_kvengine(void) {
@@ -374,11 +473,15 @@ int init_kvengine(void) {
#if ENABLE_RBTREE
memset(&global_rbtree, 0, sizeof(kvs_rbtree_t));
kvs_rbtree_create(&global_rbtree);
kvs_rbtree_load(&global_rbtree, KVS_RBTREE_FILE);
#endif
#if ENABLE_HASH
memset(&global_hash, 0, sizeof(kvs_hash_t));
kvs_hash_create(&global_hash);
kvs_hash_load(&global_hash, KVS_HASH_FILE);
#endif
init_cmd_log(KVS_CMD_LOG_FILE, &global_cmd_log_fd);

55
kvstore.h
View File

@@ -31,7 +31,10 @@
#define BIN_SAFE 1
#define KVS_CMD_LOG_FILE "kvs_cmd_log.db"
#define KVS_ARRAY_FILE "kvs_array.db"
#define KVS_ARRAY_FILE "kvs_snap_array.db"
#define KVS_RBTREE_FILE "kvs_snap_rbtree.db"
#define KVS_HASH_FILE "kvs_snap_hash.db"
// typedef int (*msg_handler)(char *msg, int length, char *response);
@@ -41,7 +44,11 @@ extern int reactor_start(unsigned short port, msg_handler handler);
extern int proactor_start(unsigned short port, msg_handler handler);
extern int ntyco_start(unsigned short port, msg_handler handler);
extern int init_cmd_log(const char *file, int *logfd);
extern int destroy_cmd_log(int logfd);
extern int kvs_save_cmd_to_logfile(const uint8_t *cmd, size_t len, int logfd);
extern int kvs_replay_log(const char *logfile, int logfd);
extern int ksv_clear_log(int logfd);
#if ENABLE_ARRAY
@@ -112,6 +119,38 @@ int kvs_array_exist(kvs_array_t *inst, char *key);
#define RED 1
#define BLACK 2
#if BIN_SAFE
typedef uint8_t KEY_TYPE; // key
typedef struct _rbtree_node {
unsigned char color;
struct _rbtree_node *right;
struct _rbtree_node *left;
struct _rbtree_node *parent;
KEY_TYPE *key;
uint32_t key_len;
KEY_TYPE *value;
uint32_t value_len;
} rbtree_node;
typedef struct _rbtree {
rbtree_node *root;
rbtree_node *nil;
} rbtree;
typedef struct _rbtree kvs_rbtree_t;
int kvs_rbtree_create(kvs_rbtree_t *inst);
void kvs_rbtree_destroy(kvs_rbtree_t *inst);
int kvs_rbtree_set(kvs_rbtree_t *inst, const void *key, uint32_t key_len, const void *value, uint32_t value_len);
void* kvs_rbtree_get(kvs_rbtree_t *inst, const void *key, uint32_t key_len, uint32_t *out_valuelen);
int kvs_rbtree_del(rbtree *inst, const void *key, uint32_t key_len);
int kvs_rbtree_mod(kvs_rbtree_t *inst, const void *key, uint32_t key_len, const void *value, uint32_t value_len);
int kvs_rbtree_exist(kvs_rbtree_t *inst, const void *key, uint32_t key_len);
int kvs_rbtree_save(kvs_rbtree_t *inst, const char* filename);
int kvs_rbtree_load(kvs_rbtree_t *inst, const char* filename);
#else
#define ENABLE_KEY_CHAR 1
#if ENABLE_KEY_CHAR
@@ -144,7 +183,7 @@ char* kvs_rbtree_get(kvs_rbtree_t *inst, char *key);
int kvs_rbtree_del(kvs_rbtree_t *inst, char *key);
int kvs_rbtree_mod(kvs_rbtree_t *inst, char *key, char *value);
int kvs_rbtree_exist(kvs_rbtree_t *inst, char *key);
#endif
#endif
@@ -152,9 +191,6 @@ int kvs_rbtree_exist(kvs_rbtree_t *inst, char *key);
#if ENABLE_HASH
#define MAX_KEY_LEN 128
#define MAX_VALUE_LEN 512
#define MAX_TABLE_SIZE 1024
#if BIN_SAFE
#define MAX_TABLE_SIZE 1024
@@ -186,9 +222,14 @@ 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);
int kvs_hash_save(kvs_hash_t *inst, const char* filename);
int kvs_hash_load(kvs_hash_t *inst, const char* filename);
#else
#define MAX_KEY_LEN 128
#define MAX_VALUE_LEN 512
#define MAX_TABLE_SIZE 1024
#define ENABLE_KEY_POINTER 1

2
reactor.c
View File

@@ -139,7 +139,7 @@ int accept_cb(int fd) {
int recv_cb(int fd) {
struct conn *c = &conn_list[fd];
int avail = BUFFER_LENGTH - c->rlength;
printf("avail: %d\n", avail);
// printf("avail: %d\n", avail);
if (avail <= 0) {
// 缓冲满了还没解析出来：协议异常或包过大
close(fd);

12
test/test_client.c
View File

@@ -65,7 +65,7 @@ int kvs_write_u32(uint8_t **pp, const uint8_t *end, uint32_t v) {
int getcmd(uint8_t op, const char *key, const char *value, uint8_t *buf){
int getcmd(uint8_t op, const char *key, uint32_t key_len, const char *value, uint32_t value_len, uint8_t *buf){
if(!buf) return -1;
uint8_t *end = buf + CMD_SIZE;
uint8_t *p = buf;
@@ -79,7 +79,7 @@ int getcmd(uint8_t op, const char *key, const char *value, uint8_t *buf){
// 写入 key
if(key){
int keylen = strlen(key);
int keylen = key_len;
if (kvs_write_u32(&p, end, keylen) < 0) return -1;
if (kvs_need(p, end, keylen) < 0) return -1;
if (keylen > 0) {
@@ -89,7 +89,7 @@ int getcmd(uint8_t op, const char *key, const char *value, uint8_t *buf){
}
if(value){
int vallen = strlen(value);
int vallen = value_len;
if (kvs_write_u32(&p, end, vallen) < 0) return -1;
if (kvs_need(p, end, vallen) < 0) return -1;
if (vallen > 0) {
@@ -102,6 +102,7 @@ int getcmd(uint8_t op, const char *key, const char *value, uint8_t *buf){
}
int parse_response(const uint8_t *buf, int buflen, kvs_response_t *rsp) {
if(buflen == 0) return 0;
const uint8_t *p = buf;
const uint8_t *end = buf + buflen;
@@ -139,7 +140,7 @@ int parse_response(const uint8_t *buf, int buflen, kvs_response_t *rsp) {
void print_response(const char *cmd_name, const kvs_response_t *rsp) {
printf("%s ", cmd_name);
if(rsp->op == KVS_CMD_GET){
if(rsp->op == KVS_CMD_GET || rsp->op == KVS_CMD_HGET || rsp->op == KVS_CMD_RGET){
if (rsp->datalen > 0 && rsp->data != NULL) {
printf("Data: ");
// 尝试以字符串形式打印（如果是可打印字符）
@@ -190,7 +191,7 @@ void print_response(const char *cmd_name, const kvs_response_t *rsp) {
}
int verify_response(const kvs_response_t *rsp, uint8_t expected_op,
uint8_t expected_status, const char *expected_data) {
uint8_t expected_status, const char *expected_data, uint32_t expected_len) {
if (rsp->op != expected_op) {
printf("❌ OP mismatch: expected %u, got %u\n", expected_op, rsp->op);
return 0;
@@ -202,7 +203,6 @@ int verify_response(const kvs_response_t *rsp, uint8_t expected_op,
}
if (expected_data != NULL) {
uint32_t expected_len = strlen(expected_data);
if (rsp->datalen != expected_len) {
printf("❌ Data length mismatch: expected %u, got %u\n", expected_len, rsp->datalen);
return 0;

13
test/test_client.h
View File

@@ -72,12 +72,12 @@ int kvs_write_u8(uint8_t **pp, const uint8_t *end, uint8_t v);
int kvs_write_u16(uint8_t **pp, const uint8_t *end, uint16_t v);
int kvs_write_u32(uint8_t **pp, const uint8_t *end, uint32_t v);
int getcmd(uint8_t op, const char *key, const char *value, uint8_t *buf);
int getcmd(uint8_t op, const char *key, uint32_t key_len, const char *value, uint32_t value_len, uint8_t *buf);
int parse_response(const uint8_t *buf, int buflen, kvs_response_t *rsp);
void print_response(const char *cmd_name, const kvs_response_t *rsp);
int verify_response(const kvs_response_t *rsp, uint8_t expected_op,
uint8_t expected_status, const char *expected_data);
uint8_t expected_status, const char *expected_data, uint32_t expected_len);
@@ -101,10 +101,10 @@ static void kvs_batch_init(kvs_batch_t *b)
* 用 getcmd() 生成单条命令，然后 append 到 batch buffer
* 返回：0 成功，-1 失败（太多条 or buffer 不够）
*/
static int kvs_batch_add(kvs_batch_t *b, uint8_t op, const char *key, const char *value){
static int kvs_batch_add(kvs_batch_t *b, uint8_t op, const char *key, uint32_t key_len, const char *value, uint32_t value_len){
if (b->cnt >= KVS_BATCH_MAX) return -1;
uint8_t tmp[CMD_SIZE];
int n = getcmd(op, key, value, tmp); // 你提供的函数
int n = getcmd(op, key, key_len, value, value_len, tmp); // 你提供的函数
if (n <= 0) return -1;
if (b->len + n > (int)sizeof(b->buf)) return -1;
@@ -122,7 +122,7 @@ static int kvs_batch_add(kvs_batch_t *b, uint8_t op, const char *key, const char
*/
static int kvs_batch_send(int fd, const kvs_batch_t *b)
{
printf("send : %d\n", b->len);
// printf("send : %d\n", b->len);
return (int)send(fd, b->buf, b->len, 0);
}
@@ -141,9 +141,7 @@ static int kvs_batch_recv_parse(int fd,
int used = 0;
while(parsed < b->cnt){
printf("recv loop: parsed=%d\n", parsed);
int nrecv = (int)recv(fd, recvbuf+used, recvbuf_cap, 0);
printf("recv nrecv=%d\n", nrecv);
if (nrecv <= 0) return -1;
int off = 0;
@@ -156,7 +154,6 @@ static int kvs_batch_recv_parse(int fd,
used+= consumed;
parsed++;
}
printf("after parse: parsed=%d, used=%d\n", parsed, used);
}
return parsed;
}

263
test/testcase.c
View File

@@ -45,18 +45,19 @@ int recv_msg(int connfd, char *msg, int length) {
}
void testcase(int connfd, uint8_t op, const char* key, const char* value, rsp_ret_status_e st, const char* rsp_value, const char* command_name){
void testcase(int connfd, uint8_t op, const char* key, uint32_t key_len, const char* value,
uint32_t value_len, rsp_ret_status_e st, const char* rsp_value, uint32_t expect_len, const char* command_name){
uint8_t buf[CMD_SIZE];
uint8_t result[CMD_SIZE];
kvs_response_t rsp;
int len, recv_len;
len = getcmd(op, key, value, buf);
len = getcmd(op, key, key_len, value, value_len, buf);
send_msg(connfd, buf, len);
recv_len = recv_msg(connfd, result, CMD_SIZE);
if (parse_response(result, recv_len, &rsp) > 0) {
PRESP(command_name, &rsp);
if(!verify_response(&rsp, op, st, rsp_value)) printf("%s\n", command_name);
if(!verify_response(&rsp, op, st, rsp_value, expect_len)) printf("%s\n", command_name);
}else{
printf("parser error\n");
}
@@ -67,23 +68,23 @@ void testcase(int connfd, uint8_t op, const char* key, const char* value, rsp_re
void array_testcase_1w(int connfd) {
int count = 1000;
int count = 1;
int i = 0;
struct timeval tv_begin;
gettimeofday(&tv_begin, NULL);
for (i = 0;i < count;i ++) {
testcase(connfd, KVS_CMD_SET, "name", "lian", KVS_STATUS_OK, NULL, "SET NAME");
testcase(connfd, KVS_CMD_GET, "name", NULL, KVS_STATUS_OK, "lian", "GET NAME");
testcase(connfd, KVS_CMD_MOD, "name", "liu", KVS_STATUS_OK, NULL, "MOD NAME");
testcase(connfd, KVS_CMD_GET, "name", NULL, KVS_STATUS_OK, "liu", "GET NAME");
testcase(connfd, KVS_CMD_EXIST, "name", NULL, KVS_STATUS_EXIST, NULL, "EXIST NAME");
testcase(connfd, KVS_CMD_DEL, "name", NULL, KVS_STATUS_OK, NULL, "DEL NAME");
testcase(connfd, KVS_CMD_EXIST, "name", NULL, KVS_STATUS_NO_EXIST, NULL, "NOT EXIST NAME");
testcase(connfd, KVS_CMD_SET, "name", 4, "l\r\0n", 4, KVS_STATUS_OK, NULL, 0, "SET NAME");
testcase(connfd, KVS_CMD_GET, "name", 4, NULL, 0, KVS_STATUS_OK, "l\r\0n", 4, "GET NAME");
testcase(connfd, KVS_CMD_MOD, "name", 4, "liu", 3, KVS_STATUS_OK, NULL, 0, "MOD NAME");
testcase(connfd, KVS_CMD_GET, "name", 4, NULL, 0, KVS_STATUS_OK, "liu", 3, "GET NAME");
testcase(connfd, KVS_CMD_EXIST, "name", 4, NULL, 0, KVS_STATUS_EXIST, NULL, 0, "EXIST NAME");
testcase(connfd, KVS_CMD_DEL, "name", 4, NULL, 0, KVS_STATUS_OK, NULL, 0, "DEL NAME");
testcase(connfd, KVS_CMD_EXIST, "name", 4, NULL, 0, KVS_STATUS_NO_EXIST, NULL, 0, "EXIST NAME");
testcase(connfd, KVS_CMD_MOD, "stu", "liu", KVS_STATUS_NO_EXIST, NULL, "MOD NAME");
testcase(connfd, KVS_CMD_DEL, "stu", NULL, KVS_STATUS_NO_EXIST, NULL, "DEL SUT");
testcase(connfd, KVS_CMD_MOD, "stu", 3, "liu", 3, KVS_STATUS_NO_EXIST, NULL, 0, "MOD NAME");
testcase(connfd, KVS_CMD_DEL, "stu", 3, NULL, 0, KVS_STATUS_NO_EXIST, NULL, 0, "DEL SUT");
}
struct timeval tv_end;
@@ -97,23 +98,23 @@ void array_testcase_1w(int connfd) {
void rbtree_testcase_1w(int connfd) {
int count = 1000;
int count = 1;
int i = 0;
struct timeval tv_begin;
gettimeofday(&tv_begin, NULL);
for (i = 0;i < count;i ++) {
testcase(connfd, KVS_CMD_RSET, "name", "lian", KVS_STATUS_OK, NULL, "SET NAME");
testcase(connfd, KVS_CMD_RGET, "name", NULL, KVS_STATUS_OK, "lian", "GET NAME");
testcase(connfd, KVS_CMD_RMOD, "name", "liu", KVS_STATUS_OK, NULL, "MOD NAME");
testcase(connfd, KVS_CMD_RGET, "name", NULL, KVS_STATUS_OK, "liu", "GET NAME");
testcase(connfd, KVS_CMD_REXIST, "name", NULL, KVS_STATUS_EXIST, NULL, "EXIST NAME");
testcase(connfd, KVS_CMD_RDEL, "name", NULL, KVS_STATUS_OK, NULL, "DEL NAME");
testcase(connfd, KVS_CMD_REXIST, "name", NULL, KVS_STATUS_NO_EXIST, NULL, "NOT EXIST NAME");
testcase(connfd, KVS_CMD_RSET, "name", 4, "l\r\0n", 4, KVS_STATUS_OK, NULL, 0, "RSET NAME");
testcase(connfd, KVS_CMD_RGET, "name", 4, NULL, 0, KVS_STATUS_OK, "l\r\0n", 4, "RGET NAME");
testcase(connfd, KVS_CMD_RMOD, "name", 4, "liu", 3, KVS_STATUS_OK, NULL, 0, "RMOD NAME");
testcase(connfd, KVS_CMD_RGET, "name", 4, NULL, 0, KVS_STATUS_OK, "liu", 3, "RGET NAME");
testcase(connfd, KVS_CMD_REXIST, "name", 4, NULL, 0, KVS_STATUS_EXIST, NULL, 0, "REXIST NAME");
testcase(connfd, KVS_CMD_RDEL, "name", 4, NULL, 0, KVS_STATUS_OK, NULL, 0, "RDEL NAME");
testcase(connfd, KVS_CMD_REXIST, "name", 4, NULL, 0, KVS_STATUS_NO_EXIST, NULL, 0, "REXIST NAME");
testcase(connfd, KVS_CMD_RMOD, "stu", "liu", KVS_STATUS_NO_EXIST, NULL, "MOD NAME");
testcase(connfd, KVS_CMD_RDEL, "stu", NULL, KVS_STATUS_NO_EXIST, NULL, "DEL SUT");
testcase(connfd, KVS_CMD_RMOD, "stu", 3, "liu", 3, KVS_STATUS_NO_EXIST, NULL, 0, "RMOD NAME");
testcase(connfd, KVS_CMD_RDEL, "stu", 3, NULL, 0, KVS_STATUS_NO_EXIST, NULL, 0, "RDEL SUT");
}
struct timeval tv_end;
@@ -127,23 +128,23 @@ void rbtree_testcase_1w(int connfd) {
void hash_testcase_1w(int connfd) {
int count = 1000;
int count = 1;
int i = 0;
struct timeval tv_begin;
gettimeofday(&tv_begin, NULL);
for (i = 0;i < count;i ++) {
testcase(connfd, KVS_CMD_HSET, "name", "lian", KVS_STATUS_OK, NULL, "SET NAME");
testcase(connfd, KVS_CMD_HGET, "name", NULL, KVS_STATUS_OK, "lian", "GET NAME");
testcase(connfd, KVS_CMD_HMOD, "name", "liu", KVS_STATUS_OK, NULL, "MOD NAME");
testcase(connfd, KVS_CMD_HGET, "name", NULL, KVS_STATUS_OK, "liu", "GET NAME");
testcase(connfd, KVS_CMD_HEXIST, "name", NULL, KVS_STATUS_EXIST, NULL, "EXIST NAME");
testcase(connfd, KVS_CMD_HDEL, "name", NULL, KVS_STATUS_OK, NULL, "DEL NAME");
testcase(connfd, KVS_CMD_HEXIST, "name", NULL, KVS_STATUS_NO_EXIST, NULL, "NOT EXIST NAME");
testcase(connfd, KVS_CMD_HSET, "name", 4, "l\r\0n", 4, KVS_STATUS_OK, NULL, 0, "HSET NAME");
testcase(connfd, KVS_CMD_HGET, "name", 4, NULL, 0, KVS_STATUS_OK, "l\r\0n", 4, "HGET NAME");
testcase(connfd, KVS_CMD_HMOD, "name", 4, "liu", 3, KVS_STATUS_OK, NULL, 0, "HMOD NAME");
testcase(connfd, KVS_CMD_HGET, "name", 4, NULL, 0, KVS_STATUS_OK, "liu", 3, "HGET NAME");
testcase(connfd, KVS_CMD_HEXIST, "name", 4, NULL, 0, KVS_STATUS_EXIST, NULL, 0, "HEXIST NAME");
testcase(connfd, KVS_CMD_HDEL, "name", 4, NULL, 0, KVS_STATUS_OK, NULL, 0, "HDEL NAME");
testcase(connfd, KVS_CMD_HEXIST, "name", 4, NULL, 0, KVS_STATUS_NO_EXIST, NULL, 0, "HEXIST NAME");
testcase(connfd, KVS_CMD_HMOD, "stu", "liu", KVS_STATUS_NO_EXIST, NULL, "MOD NAME");
testcase(connfd, KVS_CMD_HDEL, "stu", NULL, KVS_STATUS_NO_EXIST, NULL, "DEL SUT");
testcase(connfd, KVS_CMD_HMOD, "stu", 3, "liu", 3, KVS_STATUS_NO_EXIST, NULL, 0, "HMOD NAME");
testcase(connfd, KVS_CMD_HDEL, "stu", 3, NULL, 0, KVS_STATUS_NO_EXIST, NULL, 0, "HDEL SUT");
}
struct timeval tv_end;
@@ -155,18 +156,110 @@ void hash_testcase_1w(int connfd) {
}
void do_batch_SET_example(int fd)
{
// void do_batch_SET_example(int fd)
// {
// kvs_batch_t batch;
// kvs_batch_init(&batch);
// char key[10]={0}, val[10]={0};
// // 组 batch（最多 64 条）
// for(int i = 0;i < 48; ++ i){
// int len = sprintf(key, "k%d", i);
// len = sprintf(val, "v%d", i);
// kvs_batch_add(&batch, KVS_CMD_SET, key, val);
// }
// // 一次性发送
// kvs_batch_send(fd, &batch);
// // 一次性 recv + parse
// uint8_t recvbuf[BATCH_SIZE];
// kvs_response_t rsps[KVS_BATCH_MAX];
// int nrsp = kvs_batch_recv_parse(fd, &batch, rsps, recvbuf, sizeof(recvbuf));
// // 打印/处理
// for (int i = 0; i < nrsp; i++) {
// int len = sprintf(key, "SET%d", i);
// PRESP(key, &rsps[i]);
// }
// }
// void do_batch_GET_example(int fd)
// {
// kvs_batch_t batch;
// kvs_batch_init(&batch);
// char key[10]={0}, val[10]={0};
// // 组 batch（最多 64 条）
// for(int i = 0;i < 48; ++ i){
// int len = sprintf(key, "k%d", i);
// kvs_batch_add(&batch, KVS_CMD_GET, key, NULL);
// }
// // 一次性发送
// kvs_batch_send(fd, &batch);
// // 一次性 recv + parse
// uint8_t recvbuf[BATCH_SIZE];
// kvs_response_t rsps[KVS_BATCH_MAX];
// int nrsp = kvs_batch_recv_parse(fd, &batch, rsps, recvbuf, sizeof(recvbuf));
// // 打印/处理
// for (int i = 0; i < nrsp; i++) {
// int len = sprintf(key, "GET%d", i);
// PRESP(key, &rsps[i]);
// }
// }
// void do_batch_DEL_example(int fd)
// {
// kvs_batch_t batch;
// kvs_batch_init(&batch);
// char key[10]={0}, val[10]={0};
// // 组 batch（最多 64 条）
// for(int i = 0;i < 48; ++ i){
// int len = sprintf(key, "k%d", i);
// kvs_batch_add(&batch, KVS_CMD_DEL, key, NULL);
// }
// // 一次性发送
// kvs_batch_send(fd, &batch);
// // 一次性 recv + parse
// uint8_t recvbuf[BATCH_SIZE];
// kvs_response_t rsps[KVS_BATCH_MAX];
// int nrsp = kvs_batch_recv_parse(fd, &batch, rsps, recvbuf, sizeof(recvbuf));
// // 打印/处理
// for (int i = 0; i < nrsp; i++) {
// int len = sprintf(key, "DEL%d", i);
// PRESP(key, &rsps[i]);
// }
// }
void do_batch_test(int fd, int op, const char *key, const char *value){
kvs_batch_t batch;
kvs_batch_init(&batch);
char key[10]={0}, val[10]={0};
char bkey[15]={0}, bval[15]={0};
// 组 batch（最多 64 条）
for(int i = 0;i < 48; ++ i){
int len = sprintf(key, "k%d", i);
len = sprintf(val, "v%d", i);
kvs_batch_add(&batch, KVS_CMD_SET, key, val);
if(value == NULL){
int klen = sprintf(bkey, "%s%d", key, i);
kvs_batch_add(&batch, op, bkey, klen, NULL, 0);
}else{
int klen = sprintf(bkey, "%s%d", key, i);
int vlen = sprintf(bval, "%s%d", value, i);
kvs_batch_add(&batch, op, bkey, klen, bval, vlen);
}
}
// 一次性发送
@@ -180,71 +273,13 @@ void do_batch_SET_example(int fd)
// 打印/处理
for (int i = 0; i < nrsp; i++) {
int len = sprintf(key, "SET%d", i);
PRESP(key, &rsps[i]);
}
}
void do_batch_GET_example(int fd)
{
kvs_batch_t batch;
kvs_batch_init(&batch);
char key[10]={0}, val[10]={0};
// 组 batch（最多 64 条）
for(int i = 0;i < 48; ++ i){
int len = sprintf(key, "k%d", i);
kvs_batch_add(&batch, KVS_CMD_GET, key, NULL);
}
// 一次性发送
kvs_batch_send(fd, &batch);
// 一次性 recv + parse
uint8_t recvbuf[BATCH_SIZE];
kvs_response_t rsps[KVS_BATCH_MAX];
int nrsp = kvs_batch_recv_parse(fd, &batch, rsps, recvbuf, sizeof(recvbuf));
// 打印/处理
for (int i = 0; i < nrsp; i++) {
int len = sprintf(key, "GET%d", i);
PRESP(key, &rsps[i]);
}
}
void do_batch_DEL_example(int fd)
{
kvs_batch_t batch;
kvs_batch_init(&batch);
char key[10]={0}, val[10]={0};
// 组 batch（最多 64 条）
for(int i = 0;i < 48; ++ i){
int len = sprintf(key, "k%d", i);
kvs_batch_add(&batch, KVS_CMD_DEL, key, NULL);
}
// 一次性发送
kvs_batch_send(fd, &batch);
// 一次性 recv + parse
uint8_t recvbuf[BATCH_SIZE];
kvs_response_t rsps[KVS_BATCH_MAX];
int nrsp = kvs_batch_recv_parse(fd, &batch, rsps, recvbuf, sizeof(recvbuf));
// 打印/处理
for (int i = 0; i < nrsp; i++) {
int len = sprintf(key, "DEL%d", i);
PRESP(key, &rsps[i]);
int len = sprintf(bkey, "PRT%d", i);
PRESP(bkey, &rsps[i]);
}
}
void save(int connfd){
testcase(connfd, KVS_CMD_SAVE, NULL, NULL, KVS_STATUS_OK, NULL, "SAVE");
testcase(connfd, KVS_CMD_SAVE, NULL, 0, NULL, 0, KVS_STATUS_OK, NULL, 0, "SAVE");
}
@@ -261,17 +296,29 @@ int main(int argc, char *argv[]) {
int connfd = connect_tcpserver(ip, port);
if(mode == 0){
do_batch_SET_example(connfd);
}else if(mode == 1){
do_batch_GET_example(connfd);
}else if(mode == 2){
do_batch_DEL_example(connfd);
}else if(mode == 10){
array_testcase_1w(connfd);
}else if(mode == 11){
}else if(mode == 1){
rbtree_testcase_1w(connfd);
}else if(mode == 12){
}else if(mode == 2){
hash_testcase_1w(connfd);
}else if(mode == 10){
do_batch_test(connfd, KVS_CMD_SET, "array_set", "array_val");
}else if(mode == 11){
do_batch_test(connfd, KVS_CMD_GET, "array_set", NULL);
}else if(mode == 12){
do_batch_test(connfd, KVS_CMD_EXIST, "array_set", NULL);
}else if(mode == 20){
do_batch_test(connfd, KVS_CMD_RSET, "rbtree_set", "rbtree_val");
}else if(mode == 21){
do_batch_test(connfd, KVS_CMD_RGET, "rbtree_set", NULL);
}else if(mode == 22){
do_batch_test(connfd, KVS_CMD_REXIST, "rbtree_set", NULL);
}else if(mode == 30){
do_batch_test(connfd, KVS_CMD_HSET, "hash_set", "hash_val");
}else if(mode == 31){
do_batch_test(connfd, KVS_CMD_HGET, "hash_set", NULL);
}else if(mode == 32){
do_batch_test(connfd, KVS_CMD_HEXIST, "hash_set", NULL);
}else if(mode == -1){
save(connfd);
}