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1 #ifndef __REDIS_H
2 #define __REDIS_H
3
4 #include "fmacros.h"
5 #include "config.h"
6
7 #if defined(__sun)
8 #include "solarisfixes.h"
9 #endif
10
11 #include <stdio.h>
12 #include <stdlib.h>
13 #include <string.h>
14 #include <time.h>
15 #include <limits.h>
16 #include <unistd.h>
17 #include <errno.h>
18 #include <inttypes.h>
19 #include <pthread.h>
20 #include <syslog.h>
21 #include <netinet/in.h>
22 #include <lua.h>
23 #include <signal.h>
24
25 #include "ae.h" /* Event driven programming library */
26 #include "sds.h" /* Dynamic safe strings */
27 #include "dict.h" /* Hash tables */
28 #include "adlist.h" /* Linked lists */
29 #include "zmalloc.h" /* total memory usage aware version of malloc/free */
30 #include "anet.h" /* Networking the easy way */
31 #include "ziplist.h" /* Compact list data structure */
32 #include "intset.h" /* Compact integer set structure */
33 #include "version.h" /* Version macro */
34 #include "util.h" /* Misc functions useful in many places */
35
36 /* Error codes */
37 #define REDIS_OK 0
38 #define REDIS_ERR -1
39
40 /* Static server configuration */
41 #define REDIS_HZ 100 /* Time interrupt calls/sec. */
42 #define REDIS_SERVERPORT 6379 /* TCP port */
43 #define REDIS_MAXIDLETIME 0 /* default client timeout: infinite */
44 #define REDIS_DEFAULT_DBNUM 16
45 #define REDIS_CONFIGLINE_MAX 1024
46 #define REDIS_EXPIRELOOKUPS_PER_CRON 10 /* lookup 10 expires per loop */
47 #define REDIS_EXPIRELOOKUPS_TIME_PERC 25 /* CPU max % for keys collection */
48 #define REDIS_MAX_WRITE_PER_EVENT (1024*64)
49 #define REDIS_SHARED_SELECT_CMDS 10
50 #define REDIS_SHARED_INTEGERS 10000
51 #define REDIS_SHARED_BULKHDR_LEN 32
52 #define REDIS_MAX_LOGMSG_LEN 1024 /* Default maximum length of syslog messages */
53 #define REDIS_AOF_REWRITE_PERC 100
54 #define REDIS_AOF_REWRITE_MIN_SIZE (1024*1024)
55 #define REDIS_AOF_REWRITE_ITEMS_PER_CMD 64
56 #define REDIS_SLOWLOG_LOG_SLOWER_THAN 10000
57 #define REDIS_SLOWLOG_MAX_LEN 128
58 #define REDIS_MAX_CLIENTS 10000
59 #define REDIS_AUTHPASS_MAX_LEN 512
60 #define REDIS_DEFAULT_SLAVE_PRIORITY 100
61 #define REDIS_REPL_TIMEOUT 60
62 #define REDIS_REPL_PING_SLAVE_PERIOD 10
63 #define REDIS_RUN_ID_SIZE 40
64 #define REDIS_OPS_SEC_SAMPLES 16
65
66 /* Protocol and I/O related defines */
67 #define REDIS_MAX_QUERYBUF_LEN (1024*1024*1024) /* 1GB max query buffer. */
68 #define REDIS_IOBUF_LEN (1024*16) /* Generic I/O buffer size */
69 #define REDIS_REPLY_CHUNK_BYTES (16*1024) /* 16k output buffer */
70 #define REDIS_INLINE_MAX_SIZE (1024*64) /* Max size of inline reads */
71 #define REDIS_MBULK_BIG_ARG (1024*32)
72
73 /* Hash table parameters */
74 #define REDIS_HT_MINFILL 10 /* Minimal hash table fill 10% */
75
76 /* Command flags. Please check the command table defined in the redis.c file
77 * for more information about the meaning of every flag. */
78 #define REDIS_CMD_WRITE 1 /* "w" flag */
79 #define REDIS_CMD_READONLY 2 /* "r" flag */
80 #define REDIS_CMD_DENYOOM 4 /* "m" flag */
81 #define REDIS_CMD_FORCE_REPLICATION 8 /* "f" flag */
82 #define REDIS_CMD_ADMIN 16 /* "a" flag */
83 #define REDIS_CMD_PUBSUB 32 /* "p" flag */
84 #define REDIS_CMD_NOSCRIPT 64 /* "s" flag */
85 #define REDIS_CMD_RANDOM 128 /* "R" flag */
86 #define REDIS_CMD_SORT_FOR_SCRIPT 256 /* "S" flag */
87 #define REDIS_CMD_LOADING 512 /* "l" flag */
88 #define REDIS_CMD_STALE 1024 /* "t" flag */
89
90 /* Object types */
91 #define REDIS_STRING 0
92 #define REDIS_LIST 1
93 #define REDIS_SET 2
94 #define REDIS_ZSET 3
95 #define REDIS_HASH 4
96
97 /* Objects encoding. Some kind of objects like Strings and Hashes can be
98 * internally represented in multiple ways. The 'encoding' field of the object
99 * is set to one of this fields for this object. */
100 #define REDIS_ENCODING_RAW 0 /* Raw representation */
101 #define REDIS_ENCODING_INT 1 /* Encoded as integer */
102 #define REDIS_ENCODING_HT 2 /* Encoded as hash table */
103 #define REDIS_ENCODING_ZIPMAP 3 /* Encoded as zipmap */
104 #define REDIS_ENCODING_LINKEDLIST 4 /* Encoded as regular linked list */
105 #define REDIS_ENCODING_ZIPLIST 5 /* Encoded as ziplist */
106 #define REDIS_ENCODING_INTSET 6 /* Encoded as intset */
107 #define REDIS_ENCODING_SKIPLIST 7 /* Encoded as skiplist */
108
109 /* Defines related to the dump file format. To store 32 bits lengths for short
110 * keys requires a lot of space, so we check the most significant 2 bits of
111 * the first byte to interpreter the length:
112 *
113 * 00|000000 => if the two MSB are 00 the len is the 6 bits of this byte
114 * 01|000000 00000000 => 01, the len is 14 byes, 6 bits + 8 bits of next byte
115 * 10|000000 [32 bit integer] => if it's 01, a full 32 bit len will follow
116 * 11|000000 this means: specially encoded object will follow. The six bits
117 * number specify the kind of object that follows.
118 * See the REDIS_RDB_ENC_* defines.
119 *
120 * Lenghts up to 63 are stored using a single byte, most DB keys, and may
121 * values, will fit inside. */
122 #define REDIS_RDB_6BITLEN 0
123 #define REDIS_RDB_14BITLEN 1
124 #define REDIS_RDB_32BITLEN 2
125 #define REDIS_RDB_ENCVAL 3
126 #define REDIS_RDB_LENERR UINT_MAX
127
128 /* When a length of a string object stored on disk has the first two bits
129 * set, the remaining two bits specify a special encoding for the object
130 * accordingly to the following defines: */
131 #define REDIS_RDB_ENC_INT8 0 /* 8 bit signed integer */
132 #define REDIS_RDB_ENC_INT16 1 /* 16 bit signed integer */
133 #define REDIS_RDB_ENC_INT32 2 /* 32 bit signed integer */
134 #define REDIS_RDB_ENC_LZF 3 /* string compressed with FASTLZ */
135
136 /* AOF states */
137 #define REDIS_AOF_OFF 0 /* AOF is off */
138 #define REDIS_AOF_ON 1 /* AOF is on */
139 #define REDIS_AOF_WAIT_REWRITE 2 /* AOF waits rewrite to start appending */
140
141 /* Client flags */
142 #define REDIS_SLAVE 1 /* This client is a slave server */
143 #define REDIS_MASTER 2 /* This client is a master server */
144 #define REDIS_MONITOR 4 /* This client is a slave monitor, see MONITOR */
145 #define REDIS_MULTI 8 /* This client is in a MULTI context */
146 #define REDIS_BLOCKED 16 /* The client is waiting in a blocking operation */
147 #define REDIS_DIRTY_CAS 64 /* Watched keys modified. EXEC will fail. */
148 #define REDIS_CLOSE_AFTER_REPLY 128 /* Close after writing entire reply. */
149 #define REDIS_UNBLOCKED 256 /* This client was unblocked and is stored in
150 server.unblocked_clients */
151 #define REDIS_LUA_CLIENT 512 /* This is a non connected client used by Lua */
152 #define REDIS_ASKING 1024 /* Client issued the ASKING command */
153 #define REDIS_CLOSE_ASAP 2048 /* Close this client ASAP */
154
155 /* Client request types */
156 #define REDIS_REQ_INLINE 1
157 #define REDIS_REQ_MULTIBULK 2
158
159 /* Client classes for client limits, currently used only for
160 * the max-client-output-buffer limit implementation. */
161 #define REDIS_CLIENT_LIMIT_CLASS_NORMAL 0
162 #define REDIS_CLIENT_LIMIT_CLASS_SLAVE 1
163 #define REDIS_CLIENT_LIMIT_CLASS_PUBSUB 2
164 #define REDIS_CLIENT_LIMIT_NUM_CLASSES 3
165
166 /* Slave replication state - slave side */
167 #define REDIS_REPL_NONE 0 /* No active replication */
168 #define REDIS_REPL_CONNECT 1 /* Must connect to master */
169 #define REDIS_REPL_CONNECTING 2 /* Connecting to master */
170 #define REDIS_REPL_RECEIVE_PONG 3 /* Wait for PING reply */
171 #define REDIS_REPL_TRANSFER 4 /* Receiving .rdb from master */
172 #define REDIS_REPL_CONNECTED 5 /* Connected to master */
173
174 /* Synchronous read timeout - slave side */
175 #define REDIS_REPL_SYNCIO_TIMEOUT 5
176
177 /* Slave replication state - from the point of view of master
178 * Note that in SEND_BULK and ONLINE state the slave receives new updates
179 * in its output queue. In the WAIT_BGSAVE state instead the server is waiting
180 * to start the next background saving in order to send updates to it. */
181 #define REDIS_REPL_WAIT_BGSAVE_START 3 /* master waits bgsave to start feeding it */
182 #define REDIS_REPL_WAIT_BGSAVE_END 4 /* master waits bgsave to start bulk DB transmission */
183 #define REDIS_REPL_SEND_BULK 5 /* master is sending the bulk DB */
184 #define REDIS_REPL_ONLINE 6 /* bulk DB already transmitted, receive updates */
185
186 /* List related stuff */
187 #define REDIS_HEAD 0
188 #define REDIS_TAIL 1
189
190 /* Sort operations */
191 #define REDIS_SORT_GET 0
192 #define REDIS_SORT_ASC 1
193 #define REDIS_SORT_DESC 2
194 #define REDIS_SORTKEY_MAX 1024
195
196 /* Log levels */
197 #define REDIS_DEBUG 0
198 #define REDIS_VERBOSE 1
199 #define REDIS_NOTICE 2
200 #define REDIS_WARNING 3
201 #define REDIS_LOG_RAW (1<<10) /* Modifier to log without timestamp */
202
203 /* Anti-warning macro... */
204 #define REDIS_NOTUSED(V) ((void) V)
205
206 #define ZSKIPLIST_MAXLEVEL 32 /* Should be enough for 2^32 elements */
207 #define ZSKIPLIST_P 0.25 /* Skiplist P = 1/4 */
208
209 /* Append only defines */
210 #define AOF_FSYNC_NO 0
211 #define AOF_FSYNC_ALWAYS 1
212 #define AOF_FSYNC_EVERYSEC 2
213
214 /* Zip structure related defaults */
215 #define REDIS_HASH_MAX_ZIPLIST_ENTRIES 512
216 #define REDIS_HASH_MAX_ZIPLIST_VALUE 64
217 #define REDIS_LIST_MAX_ZIPLIST_ENTRIES 512
218 #define REDIS_LIST_MAX_ZIPLIST_VALUE 64
219 #define REDIS_SET_MAX_INTSET_ENTRIES 512
220 #define REDIS_ZSET_MAX_ZIPLIST_ENTRIES 128
221 #define REDIS_ZSET_MAX_ZIPLIST_VALUE 64
222
223 /* Sets operations codes */
224 #define REDIS_OP_UNION 0
225 #define REDIS_OP_DIFF 1
226 #define REDIS_OP_INTER 2
227
228 /* Redis maxmemory strategies */
229 #define REDIS_MAXMEMORY_VOLATILE_LRU 0
230 #define REDIS_MAXMEMORY_VOLATILE_TTL 1
231 #define REDIS_MAXMEMORY_VOLATILE_RANDOM 2
232 #define REDIS_MAXMEMORY_ALLKEYS_LRU 3
233 #define REDIS_MAXMEMORY_ALLKEYS_RANDOM 4
234 #define REDIS_MAXMEMORY_NO_EVICTION 5
235
236 /* Scripting */
237 #define REDIS_LUA_TIME_LIMIT 5000 /* milliseconds */
238
239 /* Units */
240 #define UNIT_SECONDS 0
241 #define UNIT_MILLISECONDS 1
242
243 /* SHUTDOWN flags */
244 #define REDIS_SHUTDOWN_SAVE 1 /* Force SAVE on SHUTDOWN even if no save
245 points are configured. */
246 #define REDIS_SHUTDOWN_NOSAVE 2 /* Don't SAVE on SHUTDOWN. */
247
248 /* Command call flags, see call() function */
249 #define REDIS_CALL_NONE 0
250 #define REDIS_CALL_SLOWLOG 1
251 #define REDIS_CALL_STATS 2
252 #define REDIS_CALL_PROPAGATE 4
253 #define REDIS_CALL_FULL (REDIS_CALL_SLOWLOG | REDIS_CALL_STATS | REDIS_CALL_PROPAGATE)
254
255 /* Command propagation flags, see propagate() function */
256 #define REDIS_PROPAGATE_NONE 0
257 #define REDIS_PROPAGATE_AOF 1
258 #define REDIS_PROPAGATE_REPL 2
259
260 /* Using the following macro you can run code inside serverCron() with the
261 * specified period, specified in milliseconds.
262 * The actual resolution depends on REDIS_HZ. */
263 #define run_with_period(_ms_) if (!(server.cronloops%((_ms_)/(1000/REDIS_HZ))))
264
265 /* We can print the stacktrace, so our assert is defined this way: */
266 #define redisAssertWithInfo(_c,_o,_e) ((_e)?(void)0 : (_redisAssertWithInfo(_c,_o,#_e,__FILE__,__LINE__),_exit(1)))
267 #define redisAssert(_e) ((_e)?(void)0 : (_redisAssert(#_e,__FILE__,__LINE__),_exit(1)))
268 #define redisPanic(_e) _redisPanic(#_e,__FILE__,__LINE__),_exit(1)
269
270 /*-----------------------------------------------------------------------------
271 * Data types
272 *----------------------------------------------------------------------------*/
273
274 /* A redis object, that is a type able to hold a string / list / set */
275
276 /* The actual Redis Object */
277 #define REDIS_LRU_CLOCK_MAX ((1<<21)-1) /* Max value of obj->lru */
278 #define REDIS_LRU_CLOCK_RESOLUTION 10 /* LRU clock resolution in seconds */
279 typedef struct redisObject {
280 unsigned type:4;
281 unsigned notused:2; /* Not used */
282 unsigned encoding:4;
283 unsigned lru:22; /* lru time (relative to server.lruclock) */
284 int refcount;
285 void *ptr;
286 } robj;
287
288 /* Macro used to initalize a Redis object allocated on the stack.
289 * Note that this macro is taken near the structure definition to make sure
290 * we'll update it when the structure is changed, to avoid bugs like
291 * bug #85 introduced exactly in this way. */
292 #define initStaticStringObject(_var,_ptr) do { \
293 _var.refcount = 1; \
294 _var.type = REDIS_STRING; \
295 _var.encoding = REDIS_ENCODING_RAW; \
296 _var.ptr = _ptr; \
297 } while(0);
298
299 typedef struct redisDb {
300 dict *dict; /* The keyspace for this DB */
301 dict *expires; /* Timeout of keys with a timeout set */
302 dict *blocking_keys; /* Keys with clients waiting for data (BLPOP) */
303 dict *ready_keys; /* Blocked keys that received a PUSH */
304 dict *watched_keys; /* WATCHED keys for MULTI/EXEC CAS */
305 int id;
306 } redisDb;
307
308 /* Client MULTI/EXEC state */
309 typedef struct multiCmd {
310 robj **argv;
311 int argc;
312 struct redisCommand *cmd;
313 } multiCmd;
314
315 typedef struct multiState {
316 multiCmd *commands; /* Array of MULTI commands */
317 int count; /* Total number of MULTI commands */
318 } multiState;
319
320 typedef struct blockingState {
321 robj **keys; /* The key we are waiting to terminate a blocking
322 * operation such as BLPOP. Otherwise NULL. */
323 int count; /* Number of blocking keys */
324 time_t timeout; /* Blocking operation timeout. If UNIX current time
325 * is >= timeout then the operation timed out. */
326 robj *target; /* The key that should receive the element,
327 * for BRPOPLPUSH. */
328 } blockingState;
329
330 /* The following structure represents a node in the server.ready_keys list,
331 * where we accumulate all the keys that had clients blocked with a blocking
332 * operation such as B[LR]POP, but received new data in the context of the
333 * last executed command.
334 *
335 * After the execution of every command or script, we run this list to check
336 * if as a result we should serve data to clients blocked, unblocking them.
337 * Note that server.ready_keys will not have duplicates as there dictionary
338 * also called ready_keys in every structure representing a Redis database,
339 * where we make sure to remember if a given key was already added in the
340 * server.ready_keys list. */
341 typedef struct readyList {
342 redisDb *db;
343 robj *key;
344 } readyList;
345
346 /* With multiplexing we need to take per-clinet state.
347 * Clients are taken in a liked list. */
348 typedef struct redisClient {
349 int fd;
350 redisDb *db;
351 int dictid;
352 sds querybuf;
353 size_t querybuf_peak; /* Recent (100ms or more) peak of querybuf size */
354 int argc;
355 robj **argv;
356 struct redisCommand *cmd, *lastcmd;
357 int reqtype;
358 int multibulklen; /* number of multi bulk arguments left to read */
359 long bulklen; /* length of bulk argument in multi bulk request */
360 list *reply;
361 unsigned long reply_bytes; /* Tot bytes of objects in reply list */
362 int sentlen;
363 time_t ctime; /* Client creation time */
364 time_t lastinteraction; /* time of the last interaction, used for timeout */
365 time_t obuf_soft_limit_reached_time;
366 int flags; /* REDIS_SLAVE | REDIS_MONITOR | REDIS_MULTI ... */
367 int slaveseldb; /* slave selected db, if this client is a slave */
368 int authenticated; /* when requirepass is non-NULL */
369 int replstate; /* replication state if this is a slave */
370 int repldbfd; /* replication DB file descriptor */
371 long repldboff; /* replication DB file offset */
372 off_t repldbsize; /* replication DB file size */
373 int slave_listening_port; /* As configured with: SLAVECONF listening-port */
374 multiState mstate; /* MULTI/EXEC state */
375 blockingState bpop; /* blocking state */
376 list *io_keys; /* Keys this client is waiting to be loaded from the
377 * swap file in order to continue. */
378 list *watched_keys; /* Keys WATCHED for MULTI/EXEC CAS */
379 dict *pubsub_channels; /* channels a client is interested in (SUBSCRIBE) */
380 list *pubsub_patterns; /* patterns a client is interested in (SUBSCRIBE) */
381
382 /* Response buffer */
383 int bufpos;
384 char buf[REDIS_REPLY_CHUNK_BYTES];
385 } redisClient;
386
387 struct saveparam {
388 time_t seconds;
389 int changes;
390 };
391
392 struct sharedObjectsStruct {
393 robj *crlf, *ok, *err, *emptybulk, *czero, *cone, *cnegone, *pong, *space,
394 *colon, *nullbulk, *nullmultibulk, *queued,
395 *emptymultibulk, *wrongtypeerr, *nokeyerr, *syntaxerr, *sameobjecterr,
396 *outofrangeerr, *noscripterr, *loadingerr, *slowscripterr, *bgsaveerr,
397 *masterdownerr, *roslaveerr,
398 *oomerr, *plus, *messagebulk, *pmessagebulk, *subscribebulk,
399 *unsubscribebulk, *psubscribebulk, *punsubscribebulk, *del, *rpop, *lpop,
400 *lpush,
401 *select[REDIS_SHARED_SELECT_CMDS],
402 *integers[REDIS_SHARED_INTEGERS],
403 *mbulkhdr[REDIS_SHARED_BULKHDR_LEN], /* "*<value>\r\n" */
404 *bulkhdr[REDIS_SHARED_BULKHDR_LEN]; /* "$<value>\r\n" */
405 };
406
407 /* ZSETs use a specialized version of Skiplists */
408 typedef struct zskiplistNode {
409 robj *obj;
410 double score;
411 struct zskiplistNode *backward;
412 struct zskiplistLevel {
413 struct zskiplistNode *forward;
414 unsigned int span;
415 } level[];
416 } zskiplistNode;
417
418 typedef struct zskiplist {
419 struct zskiplistNode *header, *tail;
420 unsigned long length;
421 int level;
422 } zskiplist;
423
424 typedef struct zset {
425 dict *dict;
426 zskiplist *zsl;
427 } zset;
428
429 typedef struct clientBufferLimitsConfig {
430 unsigned long long hard_limit_bytes;
431 unsigned long long soft_limit_bytes;
432 time_t soft_limit_seconds;
433 } clientBufferLimitsConfig;
434
435 /* The redisOp structure defines a Redis Operation, that is an instance of
436 * a command with an argument vector, database ID, propagation target
437 * (REDIS_PROPAGATE_*), and command pointer.
438 *
439 * Currently only used to additionally propagate more commands to AOF/Replication
440 * after the propagation of the executed command. */
441 typedef struct redisOp {
442 robj **argv;
443 int argc, dbid, target;
444 struct redisCommand *cmd;
445 } redisOp;
446
447 /* Defines an array of Redis operations. There is an API to add to this
448 * structure in a easy way.
449 *
450 * redisOpArrayInit();
451 * redisOpArrayAppend();
452 * redisOpArrayFree();
453 */
454 typedef struct redisOpArray {
455 redisOp *ops;
456 int numops;
457 } redisOpArray;
458
459 /*-----------------------------------------------------------------------------
460 * Global server state
461 *----------------------------------------------------------------------------*/
462
463 struct redisServer {
464 /* General */
465 redisDb *db;
466 dict *commands; /* Command table hahs table */
467 aeEventLoop *el;
468 unsigned lruclock:22; /* Clock incrementing every minute, for LRU */
469 unsigned lruclock_padding:10;
470 int shutdown_asap; /* SHUTDOWN needed ASAP */
471 int activerehashing; /* Incremental rehash in serverCron() */
472 char *requirepass; /* Pass for AUTH command, or NULL */
473 char *pidfile; /* PID file path */
474 int arch_bits; /* 32 or 64 depending on sizeof(long) */
475 int cronloops; /* Number of times the cron function run */
476 char runid[REDIS_RUN_ID_SIZE+1]; /* ID always different at every exec. */
477 int sentinel_mode; /* True if this instance is a Sentinel. */
478 /* Networking */
479 int port; /* TCP listening port */
480 char *bindaddr; /* Bind address or NULL */
481 char *unixsocket; /* UNIX socket path */
482 mode_t unixsocketperm; /* UNIX socket permission */
483 int ipfd; /* TCP socket file descriptor */
484 int sofd; /* Unix socket file descriptor */
485 list *clients; /* List of active clients */
486 list *clients_to_close; /* Clients to close asynchronously */
487 list *slaves, *monitors; /* List of slaves and MONITORs */
488 redisClient *current_client; /* Current client, only used on crash report */
489 char neterr[ANET_ERR_LEN]; /* Error buffer for anet.c */
490 /* RDB / AOF loading information */
491 int loading; /* We are loading data from disk if true */
492 off_t loading_total_bytes;
493 off_t loading_loaded_bytes;
494 time_t loading_start_time;
495 /* Fast pointers to often looked up command */
496 struct redisCommand *delCommand, *multiCommand, *lpushCommand, *lpopCommand,
497 *rpopCommand;
498 /* Fields used only for stats */
499 time_t stat_starttime; /* Server start time */
500 long long stat_numcommands; /* Number of processed commands */
501 long long stat_numconnections; /* Number of connections received */
502 long long stat_expiredkeys; /* Number of expired keys */
503 long long stat_evictedkeys; /* Number of evicted keys (maxmemory) */
504 long long stat_keyspace_hits; /* Number of successful lookups of keys */
505 long long stat_keyspace_misses; /* Number of failed lookups of keys */
506 size_t stat_peak_memory; /* Max used memory record */
507 long long stat_fork_time; /* Time needed to perform latets fork() */
508 long long stat_rejected_conn; /* Clients rejected because of maxclients */
509 list *slowlog; /* SLOWLOG list of commands */
510 long long slowlog_entry_id; /* SLOWLOG current entry ID */
511 long long slowlog_log_slower_than; /* SLOWLOG time limit (to get logged) */
512 unsigned long slowlog_max_len; /* SLOWLOG max number of items logged */
513 /* The following two are used to track instantaneous "load" in terms
514 * of operations per second. */
515 long long ops_sec_last_sample_time; /* Timestamp of last sample (in ms) */
516 long long ops_sec_last_sample_ops; /* numcommands in last sample */
517 long long ops_sec_samples[REDIS_OPS_SEC_SAMPLES];
518 int ops_sec_idx;
519 /* Configuration */
520 int verbosity; /* Loglevel in redis.conf */
521 int maxidletime; /* Client timeout in seconds */
522 size_t client_max_querybuf_len; /* Limit for client query buffer length */
523 int dbnum; /* Total number of configured DBs */
524 int daemonize; /* True if running as a daemon */
525 clientBufferLimitsConfig client_obuf_limits[REDIS_CLIENT_LIMIT_NUM_CLASSES];
526 /* AOF persistence */
527 int aof_state; /* REDIS_AOF_(ON|OFF|WAIT_REWRITE) */
528 int aof_fsync; /* Kind of fsync() policy */
529 char *aof_filename; /* Name of the AOF file */
530 int aof_no_fsync_on_rewrite; /* Don't fsync if a rewrite is in prog. */
531 int aof_rewrite_perc; /* Rewrite AOF if % growth is > M and... */
532 off_t aof_rewrite_min_size; /* the AOF file is at least N bytes. */
533 off_t aof_rewrite_base_size; /* AOF size on latest startup or rewrite. */
534 off_t aof_current_size; /* AOF current size. */
535 int aof_rewrite_scheduled; /* Rewrite once BGSAVE terminates. */
536 pid_t aof_child_pid; /* PID if rewriting process */
537 list *aof_rewrite_buf_blocks; /* Hold changes during an AOF rewrite. */
538 sds aof_buf; /* AOF buffer, written before entering the event loop */
539 int aof_fd; /* File descriptor of currently selected AOF file */
540 int aof_selected_db; /* Currently selected DB in AOF */
541 time_t aof_flush_postponed_start; /* UNIX time of postponed AOF flush */
542 time_t aof_last_fsync; /* UNIX time of last fsync() */
543 time_t aof_rewrite_time_last; /* Time used by last AOF rewrite run. */
544 time_t aof_rewrite_time_start; /* Current AOF rewrite start time. */
545 int aof_lastbgrewrite_status; /* REDIS_OK or REDIS_ERR */
546 unsigned long aof_delayed_fsync; /* delayed AOF fsync() counter */
547 /* RDB persistence */
548 long long dirty; /* Changes to DB from the last save */
549 long long dirty_before_bgsave; /* Used to restore dirty on failed BGSAVE */
550 pid_t rdb_child_pid; /* PID of RDB saving child */
551 struct saveparam *saveparams; /* Save points array for RDB */
552 int saveparamslen; /* Number of saving points */
553 char *rdb_filename; /* Name of RDB file */
554 int rdb_compression; /* Use compression in RDB? */
555 int rdb_checksum; /* Use RDB checksum? */
556 time_t lastsave; /* Unix time of last save succeeede */
557 time_t rdb_save_time_last; /* Time used by last RDB save run. */
558 time_t rdb_save_time_start; /* Current RDB save start time. */
559 int lastbgsave_status; /* REDIS_OK or REDIS_ERR */
560 int stop_writes_on_bgsave_err; /* Don't allow writes if can't BGSAVE */
561 /* Propagation of commands in AOF / replication */
562 redisOpArray also_propagate; /* Additional command to propagate. */
563 /* Logging */
564 char *logfile; /* Path of log file */
565 int syslog_enabled; /* Is syslog enabled? */
566 char *syslog_ident; /* Syslog ident */
567 int syslog_facility; /* Syslog facility */
568 /* Slave specific fields */
569 char *masterauth; /* AUTH with this password with master */
570 char *masterhost; /* Hostname of master */
571 int masterport; /* Port of master */
572 int repl_ping_slave_period; /* Master pings the slave every N seconds */
573 int repl_timeout; /* Timeout after N seconds of master idle */
574 redisClient *master; /* Client that is master for this slave */
575 int repl_syncio_timeout; /* Timeout for synchronous I/O calls */
576 int repl_state; /* Replication status if the instance is a slave */
577 off_t repl_transfer_size; /* Size of RDB to read from master during sync. */
578 off_t repl_transfer_read; /* Amount of RDB read from master during sync. */
579 off_t repl_transfer_last_fsync_off; /* Offset when we fsync-ed last time. */
580 int repl_transfer_s; /* Slave -> Master SYNC socket */
581 int repl_transfer_fd; /* Slave -> Master SYNC temp file descriptor */
582 char *repl_transfer_tmpfile; /* Slave-> master SYNC temp file name */
583 time_t repl_transfer_lastio; /* Unix time of the latest read, for timeout */
584 int repl_serve_stale_data; /* Serve stale data when link is down? */
585 int repl_slave_ro; /* Slave is read only? */
586 time_t repl_down_since; /* Unix time at which link with master went down */
587 int slave_priority; /* Reported in INFO and used by Sentinel. */
588 /* Limits */
589 unsigned int maxclients; /* Max number of simultaneous clients */
590 unsigned long long maxmemory; /* Max number of memory bytes to use */
591 int maxmemory_policy; /* Policy for key evition */
592 int maxmemory_samples; /* Pricision of random sampling */
593 /* Blocked clients */
594 unsigned int bpop_blocked_clients; /* Number of clients blocked by lists */
595 list *unblocked_clients; /* list of clients to unblock before next loop */
596 list *ready_keys; /* List of readyList structures for BLPOP & co */
597 /* Sort parameters - qsort_r() is only available under BSD so we
598 * have to take this state global, in order to pass it to sortCompare() */
599 int sort_desc;
600 int sort_alpha;
601 int sort_bypattern;
602 /* Zip structure config, see redis.conf for more information */
603 size_t hash_max_ziplist_entries;
604 size_t hash_max_ziplist_value;
605 size_t list_max_ziplist_entries;
606 size_t list_max_ziplist_value;
607 size_t set_max_intset_entries;
608 size_t zset_max_ziplist_entries;
609 size_t zset_max_ziplist_value;
610 time_t unixtime; /* Unix time sampled every second. */
611 /* Pubsub */
612 dict *pubsub_channels; /* Map channels to list of subscribed clients */
613 list *pubsub_patterns; /* A list of pubsub_patterns */
614 /* Scripting */
615 lua_State *lua; /* The Lua interpreter. We use just one for all clients */
616 redisClient *lua_client; /* The "fake client" to query Redis from Lua */
617 redisClient *lua_caller; /* The client running EVAL right now, or NULL */
618 dict *lua_scripts; /* A dictionary of SHA1 -> Lua scripts */
619 long long lua_time_limit; /* Script timeout in seconds */
620 long long lua_time_start; /* Start time of script */
621 int lua_write_dirty; /* True if a write command was called during the
622 execution of the current script. */
623 int lua_random_dirty; /* True if a random command was called during the
624 execution of the current script. */
625 int lua_timedout; /* True if we reached the time limit for script
626 execution. */
627 int lua_kill; /* Kill the script if true. */
628 /* Assert & bug reportign */
629 char *assert_failed;
630 char *assert_file;
631 int assert_line;
632 int bug_report_start; /* True if bug report header was already logged. */
633 int watchdog_period; /* Software watchdog period in ms. 0 = off */
634 };
635
636 typedef struct pubsubPattern {
637 redisClient *client;
638 robj *pattern;
639 } pubsubPattern;
640
641 typedef void redisCommandProc(redisClient *c);
642 typedef int *redisGetKeysProc(struct redisCommand *cmd, robj **argv, int argc, int *numkeys, int flags);
643 struct redisCommand {
644 char *name;
645 redisCommandProc *proc;
646 int arity;
647 char *sflags; /* Flags as string represenation, one char per flag. */
648 int flags; /* The actual flags, obtained from the 'sflags' field. */
649 /* Use a function to determine keys arguments in a command line. */
650 redisGetKeysProc *getkeys_proc;
651 /* What keys should be loaded in background when calling this command? */
652 int firstkey; /* The first argument that's a key (0 = no keys) */
653 int lastkey; /* THe last argument that's a key */
654 int keystep; /* The step between first and last key */
655 long long microseconds, calls;
656 };
657
658 struct redisFunctionSym {
659 char *name;
660 unsigned long pointer;
661 };
662
663 typedef struct _redisSortObject {
664 robj *obj;
665 union {
666 double score;
667 robj *cmpobj;
668 } u;
669 } redisSortObject;
670
671 typedef struct _redisSortOperation {
672 int type;
673 robj *pattern;
674 } redisSortOperation;
675
676 /* Structure to hold list iteration abstraction. */
677 typedef struct {
678 robj *subject;
679 unsigned char encoding;
680 unsigned char direction; /* Iteration direction */
681 unsigned char *zi;
682 listNode *ln;
683 } listTypeIterator;
684
685 /* Structure for an entry while iterating over a list. */
686 typedef struct {
687 listTypeIterator *li;
688 unsigned char *zi; /* Entry in ziplist */
689 listNode *ln; /* Entry in linked list */
690 } listTypeEntry;
691
692 /* Structure to hold set iteration abstraction. */
693 typedef struct {
694 robj *subject;
695 int encoding;
696 int ii; /* intset iterator */
697 dictIterator *di;
698 } setTypeIterator;
699
700 /* Structure to hold hash iteration abstration. Note that iteration over
701 * hashes involves both fields and values. Because it is possible that
702 * not both are required, store pointers in the iterator to avoid
703 * unnecessary memory allocation for fields/values. */
704 typedef struct {
705 robj *subject;
706 int encoding;
707
708 unsigned char *fptr, *vptr;
709
710 dictIterator *di;
711 dictEntry *de;
712 } hashTypeIterator;
713
714 #define REDIS_HASH_KEY 1
715 #define REDIS_HASH_VALUE 2
716
717 /*-----------------------------------------------------------------------------
718 * Extern declarations
719 *----------------------------------------------------------------------------*/
720
721 extern struct redisServer server;
722 extern struct sharedObjectsStruct shared;
723 extern dictType setDictType;
724 extern dictType zsetDictType;
725 extern dictType dbDictType;
726 extern double R_Zero, R_PosInf, R_NegInf, R_Nan;
727 extern dictType hashDictType;
728
729 /*-----------------------------------------------------------------------------
730 * Functions prototypes
731 *----------------------------------------------------------------------------*/
732
733 /* Utils */
734 long long ustime(void);
735 long long mstime(void);
736 void getRandomHexChars(char *p, unsigned int len);
737 uint64_t crc64(uint64_t crc, const unsigned char *s, uint64_t l);
738 void exitFromChild(int retcode);
739
740 /* networking.c -- Networking and Client related operations */
741 redisClient *createClient(int fd);
742 void closeTimedoutClients(void);
743 void freeClient(redisClient *c);
744 void resetClient(redisClient *c);
745 void sendReplyToClient(aeEventLoop *el, int fd, void *privdata, int mask);
746 void addReply(redisClient *c, robj *obj);
747 void *addDeferredMultiBulkLength(redisClient *c);
748 void setDeferredMultiBulkLength(redisClient *c, void *node, long length);
749 void addReplySds(redisClient *c, sds s);
750 void processInputBuffer(redisClient *c);
751 void acceptTcpHandler(aeEventLoop *el, int fd, void *privdata, int mask);
752 void acceptUnixHandler(aeEventLoop *el, int fd, void *privdata, int mask);
753 void readQueryFromClient(aeEventLoop *el, int fd, void *privdata, int mask);
754 void addReplyBulk(redisClient *c, robj *obj);
755 void addReplyBulkCString(redisClient *c, char *s);
756 void addReplyBulkCBuffer(redisClient *c, void *p, size_t len);
757 void addReplyBulkLongLong(redisClient *c, long long ll);
758 void acceptHandler(aeEventLoop *el, int fd, void *privdata, int mask);
759 void addReply(redisClient *c, robj *obj);
760 void addReplySds(redisClient *c, sds s);
761 void addReplyError(redisClient *c, char *err);
762 void addReplyStatus(redisClient *c, char *status);
763 void addReplyDouble(redisClient *c, double d);
764 void addReplyLongLong(redisClient *c, long long ll);
765 void addReplyMultiBulkLen(redisClient *c, long length);
766 void copyClientOutputBuffer(redisClient *dst, redisClient *src);
767 void *dupClientReplyValue(void *o);
768 void getClientsMaxBuffers(unsigned long *longest_output_list,
769 unsigned long *biggest_input_buffer);
770 sds getClientInfoString(redisClient *client);
771 sds getAllClientsInfoString(void);
772 void rewriteClientCommandVector(redisClient *c, int argc, ...);
773 void rewriteClientCommandArgument(redisClient *c, int i, robj *newval);
774 unsigned long getClientOutputBufferMemoryUsage(redisClient *c);
775 void freeClientsInAsyncFreeQueue(void);
776 void asyncCloseClientOnOutputBufferLimitReached(redisClient *c);
777 int getClientLimitClassByName(char *name);
778 char *getClientLimitClassName(int class);
779 void flushSlavesOutputBuffers(void);
780 void disconnectSlaves(void);
781
782 #ifdef __GNUC__
783 void addReplyErrorFormat(redisClient *c, const char *fmt, ...)
784 __attribute__((format(printf, 2, 3)));
785 void addReplyStatusFormat(redisClient *c, const char *fmt, ...)
786 __attribute__((format(printf, 2, 3)));
787 #else
788 void addReplyErrorFormat(redisClient *c, const char *fmt, ...);
789 void addReplyStatusFormat(redisClient *c, const char *fmt, ...);
790 #endif
791
792 /* List data type */
793 void listTypeTryConversion(robj *subject, robj *value);
794 void listTypePush(robj *subject, robj *value, int where);
795 robj *listTypePop(robj *subject, int where);
796 unsigned long listTypeLength(robj *subject);
797 listTypeIterator *listTypeInitIterator(robj *subject, long index, unsigned char direction);
798 void listTypeReleaseIterator(listTypeIterator *li);
799 int listTypeNext(listTypeIterator *li, listTypeEntry *entry);
800 robj *listTypeGet(listTypeEntry *entry);
801 void listTypeInsert(listTypeEntry *entry, robj *value, int where);
802 int listTypeEqual(listTypeEntry *entry, robj *o);
803 void listTypeDelete(listTypeEntry *entry);
804 void listTypeConvert(robj *subject, int enc);
805 void unblockClientWaitingData(redisClient *c);
806 void handleClientsBlockedOnLists(void);
807 void popGenericCommand(redisClient *c, int where);
808
809 /* MULTI/EXEC/WATCH... */
810 void unwatchAllKeys(redisClient *c);
811 void initClientMultiState(redisClient *c);
812 void freeClientMultiState(redisClient *c);
813 void queueMultiCommand(redisClient *c);
814 void touchWatchedKey(redisDb *db, robj *key);
815 void touchWatchedKeysOnFlush(int dbid);
816 void discardTransaction(redisClient *c);
817
818 /* Redis object implementation */
819 void decrRefCount(void *o);
820 void incrRefCount(robj *o);
821 robj *resetRefCount(robj *obj);
822 void freeStringObject(robj *o);
823 void freeListObject(robj *o);
824 void freeSetObject(robj *o);
825 void freeZsetObject(robj *o);
826 void freeHashObject(robj *o);
827 robj *createObject(int type, void *ptr);
828 robj *createStringObject(char *ptr, size_t len);
829 robj *dupStringObject(robj *o);
830 int isObjectRepresentableAsLongLong(robj *o, long long *llongval);
831 robj *tryObjectEncoding(robj *o);
832 robj *getDecodedObject(robj *o);
833 size_t stringObjectLen(robj *o);
834 robj *createStringObjectFromLongLong(long long value);
835 robj *createStringObjectFromLongDouble(long double value);
836 robj *createListObject(void);
837 robj *createZiplistObject(void);
838 robj *createSetObject(void);
839 robj *createIntsetObject(void);
840 robj *createHashObject(void);
841 robj *createZsetObject(void);
842 robj *createZsetZiplistObject(void);
843 int getLongFromObjectOrReply(redisClient *c, robj *o, long *target, const char *msg);
844 int checkType(redisClient *c, robj *o, int type);
845 int getLongLongFromObjectOrReply(redisClient *c, robj *o, long long *target, const char *msg);
846 int getDoubleFromObjectOrReply(redisClient *c, robj *o, double *target, const char *msg);
847 int getLongLongFromObject(robj *o, long long *target);
848 int getLongDoubleFromObject(robj *o, long double *target);
849 int getLongDoubleFromObjectOrReply(redisClient *c, robj *o, long double *target, const char *msg);
850 char *strEncoding(int encoding);
851 int compareStringObjects(robj *a, robj *b);
852 int equalStringObjects(robj *a, robj *b);
853 unsigned long estimateObjectIdleTime(robj *o);
854
855 /* Synchronous I/O with timeout */
856 ssize_t syncWrite(int fd, char *ptr, ssize_t size, long long timeout);
857 ssize_t syncRead(int fd, char *ptr, ssize_t size, long long timeout);
858 ssize_t syncReadLine(int fd, char *ptr, ssize_t size, long long timeout);
859
860 /* Replication */
861 void replicationFeedSlaves(list *slaves, int dictid, robj **argv, int argc);
862 void replicationFeedMonitors(redisClient *c, list *monitors, int dictid, robj **argv, int argc);
863 void updateSlavesWaitingBgsave(int bgsaveerr);
864 void replicationCron(void);
865
866 /* Generic persistence functions */
867 void startLoading(FILE *fp);
868 void loadingProgress(off_t pos);
869 void stopLoading(void);
870
871 /* RDB persistence */
872 #include "rdb.h"
873
874 /* AOF persistence */
875 void flushAppendOnlyFile(int force);
876 void feedAppendOnlyFile(struct redisCommand *cmd, int dictid, robj **argv, int argc);
877 void aofRemoveTempFile(pid_t childpid);
878 int rewriteAppendOnlyFileBackground(void);
879 int loadAppendOnlyFile(char *filename);
880 void stopAppendOnly(void);
881 int startAppendOnly(void);
882 void backgroundRewriteDoneHandler(int exitcode, int bysignal);
883 void aofRewriteBufferReset(void);
884 unsigned long aofRewriteBufferSize(void);
885
886 /* Sorted sets data type */
887
888 /* Struct to hold a inclusive/exclusive range spec. */
889 typedef struct {
890 double min, max;
891 int minex, maxex; /* are min or max exclusive? */
892 } zrangespec;
893
894 zskiplist *zslCreate(void);
895 void zslFree(zskiplist *zsl);
896 zskiplistNode *zslInsert(zskiplist *zsl, double score, robj *obj);
897 unsigned char *zzlInsert(unsigned char *zl, robj *ele, double score);
898 int zslDelete(zskiplist *zsl, double score, robj *obj);
899 zskiplistNode *zslFirstInRange(zskiplist *zsl, zrangespec range);
900 double zzlGetScore(unsigned char *sptr);
901 void zzlNext(unsigned char *zl, unsigned char **eptr, unsigned char **sptr);
902 void zzlPrev(unsigned char *zl, unsigned char **eptr, unsigned char **sptr);
903 unsigned int zsetLength(robj *zobj);
904 void zsetConvert(robj *zobj, int encoding);
905
906 /* Core functions */
907 int freeMemoryIfNeeded(void);
908 int processCommand(redisClient *c);
909 void setupSignalHandlers(void);
910 struct redisCommand *lookupCommand(sds name);
911 struct redisCommand *lookupCommandByCString(char *s);
912 void call(redisClient *c, int flags);
913 void propagate(struct redisCommand *cmd, int dbid, robj **argv, int argc, int flags);
914 void alsoPropagate(struct redisCommand *cmd, int dbid, robj **argv, int argc, int target);
915 int prepareForShutdown();
916 void redisLog(int level, const char *fmt, ...);
917 void redisLogRaw(int level, const char *msg);
918 void redisLogFromHandler(int level, const char *msg);
919 void usage();
920 void updateDictResizePolicy(void);
921 int htNeedsResize(dict *dict);
922 void oom(const char *msg);
923 void populateCommandTable(void);
924 void resetCommandTableStats(void);
925
926 /* Set data type */
927 robj *setTypeCreate(robj *value);
928 int setTypeAdd(robj *subject, robj *value);
929 int setTypeRemove(robj *subject, robj *value);
930 int setTypeIsMember(robj *subject, robj *value);
931 setTypeIterator *setTypeInitIterator(robj *subject);
932 void setTypeReleaseIterator(setTypeIterator *si);
933 int setTypeNext(setTypeIterator *si, robj **objele, int64_t *llele);
934 robj *setTypeNextObject(setTypeIterator *si);
935 int setTypeRandomElement(robj *setobj, robj **objele, int64_t *llele);
936 unsigned long setTypeSize(robj *subject);
937 void setTypeConvert(robj *subject, int enc);
938
939 /* Hash data type */
940 void hashTypeConvert(robj *o, int enc);
941 void hashTypeTryConversion(robj *subject, robj **argv, int start, int end);
942 void hashTypeTryObjectEncoding(robj *subject, robj **o1, robj **o2);
943 robj *hashTypeGetObject(robj *o, robj *key);
944 int hashTypeExists(robj *o, robj *key);
945 int hashTypeSet(robj *o, robj *key, robj *value);
946 int hashTypeDelete(robj *o, robj *key);
947 unsigned long hashTypeLength(robj *o);
948 hashTypeIterator *hashTypeInitIterator(robj *subject);
949 void hashTypeReleaseIterator(hashTypeIterator *hi);
950 int hashTypeNext(hashTypeIterator *hi);
951 void hashTypeCurrentFromZiplist(hashTypeIterator *hi, int what,
952 unsigned char **vstr,
953 unsigned int *vlen,
954 long long *vll);
955 void hashTypeCurrentFromHashTable(hashTypeIterator *hi, int what, robj **dst);
956 robj *hashTypeCurrentObject(hashTypeIterator *hi, int what);
957 robj *hashTypeLookupWriteOrCreate(redisClient *c, robj *key);
958
959 /* Pub / Sub */
960 int pubsubUnsubscribeAllChannels(redisClient *c, int notify);
961 int pubsubUnsubscribeAllPatterns(redisClient *c, int notify);
962 void freePubsubPattern(void *p);
963 int listMatchPubsubPattern(void *a, void *b);
964 int pubsubPublishMessage(robj *channel, robj *message);
965
966 /* Configuration */
967 void loadServerConfig(char *filename, char *options);
968 void appendServerSaveParams(time_t seconds, int changes);
969 void resetServerSaveParams();
970
971 /* db.c -- Keyspace access API */
972 int removeExpire(redisDb *db, robj *key);
973 void propagateExpire(redisDb *db, robj *key);
974 int expireIfNeeded(redisDb *db, robj *key);
975 long long getExpire(redisDb *db, robj *key);
976 void setExpire(redisDb *db, robj *key, long long when);
977 robj *lookupKey(redisDb *db, robj *key);
978 robj *lookupKeyRead(redisDb *db, robj *key);
979 robj *lookupKeyWrite(redisDb *db, robj *key);
980 robj *lookupKeyReadOrReply(redisClient *c, robj *key, robj *reply);
981 robj *lookupKeyWriteOrReply(redisClient *c, robj *key, robj *reply);
982 void dbAdd(redisDb *db, robj *key, robj *val);
983 void dbOverwrite(redisDb *db, robj *key, robj *val);
984 void setKey(redisDb *db, robj *key, robj *val);
985 int dbExists(redisDb *db, robj *key);
986 robj *dbRandomKey(redisDb *db);
987 int dbDelete(redisDb *db, robj *key);
988 long long emptyDb();
989 int selectDb(redisClient *c, int id);
990 void signalModifiedKey(redisDb *db, robj *key);
991 void signalFlushedDb(int dbid);
992 unsigned int GetKeysInSlot(unsigned int hashslot, robj **keys, unsigned int count);
993
994 /* API to get key arguments from commands */
995 #define REDIS_GETKEYS_ALL 0
996 #define REDIS_GETKEYS_PRELOAD 1
997 int *getKeysFromCommand(struct redisCommand *cmd, robj **argv, int argc, int *numkeys, int flags);
998 void getKeysFreeResult(int *result);
999 int *noPreloadGetKeys(struct redisCommand *cmd,robj **argv, int argc, int *numkeys, int flags);
1000 int *renameGetKeys(struct redisCommand *cmd,robj **argv, int argc, int *numkeys, int flags);
1001 int *zunionInterGetKeys(struct redisCommand *cmd,robj **argv, int argc, int *numkeys, int flags);
1002
1003 /* Sentinel */
1004 void initSentinelConfig(void);
1005 void initSentinel(void);
1006 void sentinelTimer(void);
1007 char *sentinelHandleConfiguration(char **argv, int argc);
1008
1009 /* Scripting */
1010 void scriptingInit(void);
1011
1012 /* Git SHA1 */
1013 char *redisGitSHA1(void);
1014 char *redisGitDirty(void);
1015
1016 /* Commands prototypes */
1017 void authCommand(redisClient *c);
1018 void pingCommand(redisClient *c);
1019 void echoCommand(redisClient *c);
1020 void setCommand(redisClient *c);
1021 void setnxCommand(redisClient *c);
1022 void setexCommand(redisClient *c);
1023 void psetexCommand(redisClient *c);
1024 void getCommand(redisClient *c);
1025 void delCommand(redisClient *c);
1026 void existsCommand(redisClient *c);
1027 void setbitCommand(redisClient *c);
1028 void getbitCommand(redisClient *c);
1029 void setrangeCommand(redisClient *c);
1030 void getrangeCommand(redisClient *c);
1031 void incrCommand(redisClient *c);
1032 void decrCommand(redisClient *c);
1033 void incrbyCommand(redisClient *c);
1034 void decrbyCommand(redisClient *c);
1035 void incrbyfloatCommand(redisClient *c);
1036 void selectCommand(redisClient *c);
1037 void randomkeyCommand(redisClient *c);
1038 void keysCommand(redisClient *c);
1039 void dbsizeCommand(redisClient *c);
1040 void lastsaveCommand(redisClient *c);
1041 void saveCommand(redisClient *c);
1042 void bgsaveCommand(redisClient *c);
1043 void bgrewriteaofCommand(redisClient *c);
1044 void shutdownCommand(redisClient *c);
1045 void moveCommand(redisClient *c);
1046 void renameCommand(redisClient *c);
1047 void renamenxCommand(redisClient *c);
1048 void lpushCommand(redisClient *c);
1049 void rpushCommand(redisClient *c);
1050 void lpushxCommand(redisClient *c);
1051 void rpushxCommand(redisClient *c);
1052 void linsertCommand(redisClient *c);
1053 void lpopCommand(redisClient *c);
1054 void rpopCommand(redisClient *c);
1055 void llenCommand(redisClient *c);
1056 void lindexCommand(redisClient *c);
1057 void lrangeCommand(redisClient *c);
1058 void ltrimCommand(redisClient *c);
1059 void typeCommand(redisClient *c);
1060 void lsetCommand(redisClient *c);
1061 void saddCommand(redisClient *c);
1062 void sremCommand(redisClient *c);
1063 void smoveCommand(redisClient *c);
1064 void sismemberCommand(redisClient *c);
1065 void scardCommand(redisClient *c);
1066 void spopCommand(redisClient *c);
1067 void srandmemberCommand(redisClient *c);
1068 void sinterCommand(redisClient *c);
1069 void sinterstoreCommand(redisClient *c);
1070 void sunionCommand(redisClient *c);
1071 void sunionstoreCommand(redisClient *c);
1072 void sdiffCommand(redisClient *c);
1073 void sdiffstoreCommand(redisClient *c);
1074 void syncCommand(redisClient *c);
1075 void flushdbCommand(redisClient *c);
1076 void flushallCommand(redisClient *c);
1077 void sortCommand(redisClient *c);
1078 void lremCommand(redisClient *c);
1079 void rpoplpushCommand(redisClient *c);
1080 void infoCommand(redisClient *c);
1081 void mgetCommand(redisClient *c);
1082 void monitorCommand(redisClient *c);
1083 void expireCommand(redisClient *c);
1084 void expireatCommand(redisClient *c);
1085 void pexpireCommand(redisClient *c);
1086 void pexpireatCommand(redisClient *c);
1087 void getsetCommand(redisClient *c);
1088 void ttlCommand(redisClient *c);
1089 void pttlCommand(redisClient *c);
1090 void persistCommand(redisClient *c);
1091 void slaveofCommand(redisClient *c);
1092 void debugCommand(redisClient *c);
1093 void msetCommand(redisClient *c);
1094 void msetnxCommand(redisClient *c);
1095 void zaddCommand(redisClient *c);
1096 void zincrbyCommand(redisClient *c);
1097 void zrangeCommand(redisClient *c);
1098 void zrangebyscoreCommand(redisClient *c);
1099 void zrevrangebyscoreCommand(redisClient *c);
1100 void zcountCommand(redisClient *c);
1101 void zrevrangeCommand(redisClient *c);
1102 void zcardCommand(redisClient *c);
1103 void zremCommand(redisClient *c);
1104 void zscoreCommand(redisClient *c);
1105 void zremrangebyscoreCommand(redisClient *c);
1106 void multiCommand(redisClient *c);
1107 void execCommand(redisClient *c);
1108 void discardCommand(redisClient *c);
1109 void blpopCommand(redisClient *c);
1110 void brpopCommand(redisClient *c);
1111 void brpoplpushCommand(redisClient *c);
1112 void appendCommand(redisClient *c);
1113 void strlenCommand(redisClient *c);
1114 void zrankCommand(redisClient *c);
1115 void zrevrankCommand(redisClient *c);
1116 void hsetCommand(redisClient *c);
1117 void hsetnxCommand(redisClient *c);
1118 void hgetCommand(redisClient *c);
1119 void hmsetCommand(redisClient *c);
1120 void hmgetCommand(redisClient *c);
1121 void hdelCommand(redisClient *c);
1122 void hlenCommand(redisClient *c);
1123 void zremrangebyrankCommand(redisClient *c);
1124 void zunionstoreCommand(redisClient *c);
1125 void zinterstoreCommand(redisClient *c);
1126 void hkeysCommand(redisClient *c);
1127 void hvalsCommand(redisClient *c);
1128 void hgetallCommand(redisClient *c);
1129 void hexistsCommand(redisClient *c);
1130 void configCommand(redisClient *c);
1131 void hincrbyCommand(redisClient *c);
1132 void hincrbyfloatCommand(redisClient *c);
1133 void subscribeCommand(redisClient *c);
1134 void unsubscribeCommand(redisClient *c);
1135 void psubscribeCommand(redisClient *c);
1136 void punsubscribeCommand(redisClient *c);
1137 void publishCommand(redisClient *c);
1138 void watchCommand(redisClient *c);
1139 void unwatchCommand(redisClient *c);
1140 void restoreCommand(redisClient *c);
1141 void migrateCommand(redisClient *c);
1142 void dumpCommand(redisClient *c);
1143 void objectCommand(redisClient *c);
1144 void clientCommand(redisClient *c);
1145 void evalCommand(redisClient *c);
1146 void evalShaCommand(redisClient *c);
1147 void scriptCommand(redisClient *c);
1148 void timeCommand(redisClient *c);
1149 void bitopCommand(redisClient *c);
1150 void bitcountCommand(redisClient *c);
1151 void replconfCommand(redisClient *c);
1152
1153 #if defined(__GNUC__)
1154 void *calloc(size_t count, size_t size) __attribute__ ((deprecated));
1155 void free(void *ptr) __attribute__ ((deprecated));
1156 void *malloc(size_t size) __attribute__ ((deprecated));
1157 void *realloc(void *ptr, size_t size) __attribute__ ((deprecated));
1158 #endif
1159
1160 /* Debugging stuff */
1161 void _redisAssertWithInfo(redisClient *c, robj *o, char *estr, char *file, int line);
1162 void _redisAssert(char *estr, char *file, int line);
1163 void _redisPanic(char *msg, char *file, int line);
1164 void bugReportStart(void);
1165 void redisLogObjectDebugInfo(robj *o);
1166 void sigsegvHandler(int sig, siginfo_t *info, void *secret);
1167 sds genRedisInfoString(char *section);
1168 void enableWatchdog(int period);
1169 void disableWatchdog(void);
1170 void watchdogScheduleSignal(int period);
1171 void redisLogHexDump(int level, char *descr, void *value, size_t len);
1172
1173 #define redisDebug(fmt, ...) \
1174 printf("DEBUG %s:%d > " fmt "\n", __FILE__, __LINE__, __VA_ARGS__)
1175 #define redisDebugMark() \
1176 printf("-- MARK %s:%d --\n", __FILE__, __LINE__)
1177
1178 #endif
Redis += OpenLDAP MDB