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| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 | 3x 3x 3x 3x 3x 3x 3x 3x 3x 3x 3x 3x 3x 3x 199x 199x 199x 125x 74x 74x 74x 3x 189x 189x 189x 255x 255x 255x 255x 189x 66x 66x 66x 22x 66x 189x 3x 6x 6x 6x 528x 528x 528x 528x 6x 522x 522x 522x 522x 522x 6x 3x | export interface Response {
code: ResponseCode;
data?: { [key: string]: Metadata };
stats?: Stats;
}
export interface StatsResponse {
code: ResponseCode;
stats: { [key: string]: Stats };
}
export interface Stats {
pid: number;
uptime: number;
time: number;
version: string;
libevent: string;
pointer_size: number;
rusage_user: number;
rusage_system: number;
max_connections: number;
curr_connections: number;
total_connections: number;
rejected_connections: number;
connection_structures: number;
response_obj_bytes: number;
response_obj_total: number;
response_obj_free: number;
response_obj_oom: number;
read_buf_bytes: number;
read_buf_bytes_free: number;
read_buf_oom: number;
reserved_fds: number;
cmd_get: number;
cmd_set: number;
cmd_flush: number;
cmd_touch: number;
cmd_meta: number;
get_hits: number;
get_misses: number;
get_expired: number;
get_flushed: number;
deleted_misses: number;
delete_hits: number;
incr_misses: number;
incre_hits: number;
descr_misses: number;
decr_hits: number;
cas_misses: number;
cas_hits: number;
cas_badval: number;
touch_hits: number;
touch_misses: number;
auth_cmds: number;
auth_errors: number;
bytes_read: number;
bytes_written: number;
limit_maxbytes: number;
accepting_conns: number;
listen_disabled_num: number;
time_in_listen_disabled_us: number;
threads: number;
conn_yields: number;
hash_power_level: number;
hash_bytes: number;
hash_is_expanding: number;
slab_reassign_rescues: number;
slab_reassign_chunk_rescues: number;
slab_reassign_evictions_nomem: number;
slab_reassign_inline_reclaim: number;
slab_reassign_busy_items: number;
slab_reassign_busy_deletes: number;
slab_reassign_running: number;
slabs_moved: number;
lru_crawler_running: number;
lru_crawler_starts: number;
lru_maintainer_juggles: number;
malloc_fails: number;
log_worker_dropped: number;
log_worker_written: number;
log_watcher_skipped: number;
log_watcher_sent: number;
bytes: number;
curr_items: number;
total_items: number;
slab_global_page_pool: number;
expired_unfetched: number;
evicted_unfetched: number;
evicted_active: number;
evictions: number;
reclaimed: number;
crawler_reclaimed: number;
crawler_items_checked: number;
lrutail_reflocked: number;
moves_to_cold: number;
moves_to_warm: number;
moves_within_lru: number;
direct_reclaims: number;
lru_bumps_dropped: number;
}
export interface Metadata {
key: string;
flags?: number;
bytes?: number;
value?: string | Record<string, any>;
casId?: number;
}
const RETURN = "\r\n";
export enum ResponseCode {
END = "END",
STORED = "STORED",
NOT_STORED = "NOT_STORED",
NOT_FOUND = "NOT_FOUND",
EXISTS = "EXISTS",
DELETED = "DELETED",
TOUCHED = "TOUCHED",
ERROR = "ERROR",
CLIENT_ERROR = "CLIENT_ERROR",
SERVER_ERROR = "SERVER_ERROR",
}
const codes: Array<string> = [
ResponseCode.END,
ResponseCode.STORED,
ResponseCode.NOT_STORED,
ResponseCode.NOT_FOUND,
ResponseCode.EXISTS,
ResponseCode.DELETED,
ResponseCode.TOUCHED,
ResponseCode.ERROR,
ResponseCode.CLIENT_ERROR,
ResponseCode.SERVER_ERROR,
];
export function parseResponseCode(chunk: Buffer): ResponseCode {
const str = chunk.toString();
const match = str.match(/^[A-Z_]+\r\n$/);
if (match) {
return match[0].replace(/\r\n$/, "") as ResponseCode;
}
const tail = str.match(/\r\n[A-Z_]+\r\n$/);
Eif (tail) {
return tail[0].replace(/\r\n/g, "") as ResponseCode;
}
throw new Error("no matching error");
}
export function parseResponse(chunk: Buffer): { [key: string]: Metadata } {
let base = 0;
const metadata: { [key: string]: Metadata } = {};
do {
let start = chunk.indexOf(RETURN, base);
const meta = chunk.slice(base, start).toString("utf8").split(" ");
start += RETURN.length;
if (codes.includes(meta[0])) {
break;
}
const value = chunk.slice(start, start + parseInt(meta[3], 10));
metadata[meta[1]] = {
key: meta[1],
flags: parseInt(meta[2], 10),
bytes: parseInt(meta[3], 10),
value: value.toString("utf8"),
};
if (meta.length > 3 && meta[4]) {
metadata[meta[1]].casId = parseInt(meta[4], 10);
}
base = start + parseInt(meta[3]) + RETURN.length;
} while (true);
return metadata;
}
export function parseStatResponse(chunk: Buffer): Stats {
let base = 0;
const stats = {};
do {
let start = chunk.indexOf(RETURN, base);
const meta = chunk.slice(base, start).toString("utf8").split(" ");
start += RETURN.length;
if (meta[0] === ResponseCode.END) {
break;
}
const key = meta[1];
let value: string | number = Number(meta[2]);
Iif (value === NaN) {
value = meta[2];
}
stats[key] = value;
base = start;
} while (true);
return stats as Stats;
}
export default {
parseResponseCode,
parseStatResponse,
};
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