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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
24 #include "ae.h" /* Event driven programming library */
25 #include "sds.h" /* Dynamic safe strings */
26 #include "dict.h" /* Hash tables */
27 #include "adlist.h" /* Linked lists */
28 #include "zmalloc.h" /* total memory usage aware version of malloc/free */
29 #include "anet.h" /* Networking the easy way */
30 #include "zipmap.h" /* Compact string -> string data structure */
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_SERVERPORT 6379 /* TCP port */
42 #define REDIS_MAXIDLETIME 0 /* default client timeout: infinite */
43 #define REDIS_DEFAULT_DBNUM 16
44 #define REDIS_CONFIGLINE_MAX 1024
45 #define REDIS_EXPIRELOOKUPS_PER_CRON 10 /* lookup 10 expires per loop */
46 #define REDIS_MAX_WRITE_PER_EVENT (1024*64)
47 #define REDIS_SHARED_INTEGERS 10000
48 #define REDIS_MAX_LOGMSG_LEN 1024 /* Default maximum length of syslog messages */
49 #define REDIS_AOF_REWRITE_PERC 100
50 #define REDIS_AOF_REWRITE_MIN_SIZE (1024*1024)
51 #define REDIS_AOF_REWRITE_ITEMS_PER_CMD 64
52 #define REDIS_SLOWLOG_LOG_SLOWER_THAN 10000
53 #define REDIS_SLOWLOG_MAX_LEN 64
54 #define REDIS_MAX_CLIENTS 10000
55
56 #define REDIS_REPL_TIMEOUT 60
57 #define REDIS_REPL_PING_SLAVE_PERIOD 10
58
59 /* Protocol and I/O related defines */
60 #define REDIS_MAX_QUERYBUF_LEN (1024*1024*1024) /* 1GB max query buffer. */
61 #define REDIS_IOBUF_LEN (1024*16) /* Generic I/O buffer size */
62 #define REDIS_REPLY_CHUNK_BYTES (16*1024) /* 16k output buffer */
63 #define REDIS_INLINE_MAX_SIZE (1024*64) /* Max size of inline reads */
64 #define REDIS_MBULK_BIG_ARG (1024*32)
65
66 /* Hash table parameters */
67 #define REDIS_HT_MINFILL 10 /* Minimal hash table fill 10% */
68
69 /* Command flags. Please check the command table defined in the redis.c file
70 * for more information about the meaning of every flag. */
71 #define REDIS_CMD_WRITE 1 /* "w" flag */
72 #define REDIS_CMD_READONLY 2 /* "r" flag */
73 #define REDIS_CMD_DENYOOM 4 /* "m" flag */
74 #define REDIS_CMD_FORCE_REPLICATION 8 /* "f" flag */
75 #define REDIS_CMD_ADMIN 16 /* "a" flag */
76 #define REDIS_CMD_PUBSUB 32 /* "p" flag */
77 #define REDIS_CMD_NOSCRIPT 64 /* "s" flag */
78 #define REDIS_CMD_RANDOM 128 /* "R" flag */
79
80 /* Object types */
81 #define REDIS_STRING 0
82 #define REDIS_LIST 1
83 #define REDIS_SET 2
84 #define REDIS_ZSET 3
85 #define REDIS_HASH 4
86 #define REDIS_VMPOINTER 8
87
88 /* Objects encoding. Some kind of objects like Strings and Hashes can be
89 * internally represented in multiple ways. The 'encoding' field of the object
90 * is set to one of this fields for this object. */
91 #define REDIS_ENCODING_RAW 0 /* Raw representation */
92 #define REDIS_ENCODING_INT 1 /* Encoded as integer */
93 #define REDIS_ENCODING_HT 2 /* Encoded as hash table */
94 #define REDIS_ENCODING_ZIPMAP 3 /* Encoded as zipmap */
95 #define REDIS_ENCODING_LINKEDLIST 4 /* Encoded as regular linked list */
96 #define REDIS_ENCODING_ZIPLIST 5 /* Encoded as ziplist */
97 #define REDIS_ENCODING_INTSET 6 /* Encoded as intset */
98 #define REDIS_ENCODING_SKIPLIST 7 /* Encoded as skiplist */
99
100 /* Defines related to the dump file format. To store 32 bits lengths for short
101 * keys requires a lot of space, so we check the most significant 2 bits of
102 * the first byte to interpreter the length:
103 *
104 * 00|000000 => if the two MSB are 00 the len is the 6 bits of this byte
105 * 01|000000 00000000 => 01, the len is 14 byes, 6 bits + 8 bits of next byte
106 * 10|000000 [32 bit integer] => if it's 01, a full 32 bit len will follow
107 * 11|000000 this means: specially encoded object will follow. The six bits
108 * number specify the kind of object that follows.
109 * See the REDIS_RDB_ENC_* defines.
110 *
111 * Lenghts up to 63 are stored using a single byte, most DB keys, and may
112 * values, will fit inside. */
113 #define REDIS_RDB_6BITLEN 0
114 #define REDIS_RDB_14BITLEN 1
115 #define REDIS_RDB_32BITLEN 2
116 #define REDIS_RDB_ENCVAL 3
117 #define REDIS_RDB_LENERR UINT_MAX
118
119 /* When a length of a string object stored on disk has the first two bits
120 * set, the remaining two bits specify a special encoding for the object
121 * accordingly to the following defines: */
122 #define REDIS_RDB_ENC_INT8 0 /* 8 bit signed integer */
123 #define REDIS_RDB_ENC_INT16 1 /* 16 bit signed integer */
124 #define REDIS_RDB_ENC_INT32 2 /* 32 bit signed integer */
125 #define REDIS_RDB_ENC_LZF 3 /* string compressed with FASTLZ */
126
127 /* AOF states */
128 #define REDIS_AOF_OFF 0 /* AOF is off */
129 #define REDIS_AOF_ON 1 /* AOF is on */
130 #define REDIS_AOF_WAIT_REWRITE 2 /* AOF waits rewrite to start appending */
131
132 /* Client flags */
133 #define REDIS_SLAVE 1 /* This client is a slave server */
134 #define REDIS_MASTER 2 /* This client is a master server */
135 #define REDIS_MONITOR 4 /* This client is a slave monitor, see MONITOR */
136 #define REDIS_MULTI 8 /* This client is in a MULTI context */
137 #define REDIS_BLOCKED 16 /* The client is waiting in a blocking operation */
138 #define REDIS_DIRTY_CAS 64 /* Watched keys modified. EXEC will fail. */
139 #define REDIS_CLOSE_AFTER_REPLY 128 /* Close after writing entire reply. */
140 #define REDIS_UNBLOCKED 256 /* This client was unblocked and is stored in
141 server.unblocked_clients */
142 #define REDIS_LUA_CLIENT 512 /* This is a non connected client used by Lua */
143 #define REDIS_ASKING 1024 /* Client issued the ASKING command */
144
145 /* Client request types */
146 #define REDIS_REQ_INLINE 1
147 #define REDIS_REQ_MULTIBULK 2
148
149 /* Slave replication state - slave side */
150 #define REDIS_REPL_NONE 0 /* No active replication */
151 #define REDIS_REPL_CONNECT 1 /* Must connect to master */
152 #define REDIS_REPL_CONNECTING 2 /* Connecting to master */
153 #define REDIS_REPL_TRANSFER 3 /* Receiving .rdb from master */
154 #define REDIS_REPL_CONNECTED 4 /* Connected to master */
155
156 /* Synchronous read timeout - slave side */
157 #define REDIS_REPL_SYNCIO_TIMEOUT 5
158
159 /* Slave replication state - from the point of view of master
160 * Note that in SEND_BULK and ONLINE state the slave receives new updates
161 * in its output queue. In the WAIT_BGSAVE state instead the server is waiting
162 * to start the next background saving in order to send updates to it. */
163 #define REDIS_REPL_WAIT_BGSAVE_START 3 /* master waits bgsave to start feeding it */
164 #define REDIS_REPL_WAIT_BGSAVE_END 4 /* master waits bgsave to start bulk DB transmission */
165 #define REDIS_REPL_SEND_BULK 5 /* master is sending the bulk DB */
166 #define REDIS_REPL_ONLINE 6 /* bulk DB already transmitted, receive updates */
167
168 /* List related stuff */
169 #define REDIS_HEAD 0
170 #define REDIS_TAIL 1
171
172 /* Sort operations */
173 #define REDIS_SORT_GET 0
174 #define REDIS_SORT_ASC 1
175 #define REDIS_SORT_DESC 2
176 #define REDIS_SORTKEY_MAX 1024
177
178 /* Log levels */
179 #define REDIS_DEBUG 0
180 #define REDIS_VERBOSE 1
181 #define REDIS_NOTICE 2
182 #define REDIS_WARNING 3
183 #define REDIS_LOG_RAW (1<<10) /* Modifier to log without timestamp */
184
185 /* Anti-warning macro... */
186 #define REDIS_NOTUSED(V) ((void) V)
187
188 #define ZSKIPLIST_MAXLEVEL 32 /* Should be enough for 2^32 elements */
189 #define ZSKIPLIST_P 0.25 /* Skiplist P = 1/4 */
190
191 /* Append only defines */
192 #define AOF_FSYNC_NO 0
193 #define AOF_FSYNC_ALWAYS 1
194 #define AOF_FSYNC_EVERYSEC 2
195
196 /* Zip structure related defaults */
197 #define REDIS_HASH_MAX_ZIPMAP_ENTRIES 512
198 #define REDIS_HASH_MAX_ZIPMAP_VALUE 64
199 #define REDIS_LIST_MAX_ZIPLIST_ENTRIES 512
200 #define REDIS_LIST_MAX_ZIPLIST_VALUE 64
201 #define REDIS_SET_MAX_INTSET_ENTRIES 512
202 #define REDIS_ZSET_MAX_ZIPLIST_ENTRIES 128
203 #define REDIS_ZSET_MAX_ZIPLIST_VALUE 64
204
205 /* Sets operations codes */
206 #define REDIS_OP_UNION 0
207 #define REDIS_OP_DIFF 1
208 #define REDIS_OP_INTER 2
209
210 /* Redis maxmemory strategies */
211 #define REDIS_MAXMEMORY_VOLATILE_LRU 0
212 #define REDIS_MAXMEMORY_VOLATILE_TTL 1
213 #define REDIS_MAXMEMORY_VOLATILE_RANDOM 2
214 #define REDIS_MAXMEMORY_ALLKEYS_LRU 3
215 #define REDIS_MAXMEMORY_ALLKEYS_RANDOM 4
216 #define REDIS_MAXMEMORY_NO_EVICTION 5
217
218 /* Scripting */
219 #define REDIS_LUA_TIME_LIMIT 5000 /* milliseconds */
220
221 /* Units */
222 #define UNIT_SECONDS 0
223 #define UNIT_MILLISECONDS 1
224
225 /* SHUTDOWN flags */
226 #define REDIS_SHUTDOWN_SAVE 1 /* Force SAVE on SHUTDOWN even if no save
227 points are configured. */
228 #define REDIS_SHUTDOWN_NOSAVE 2 /* Don't SAVE on SHUTDOWN. */
229
230 /* We can print the stacktrace, so our assert is defined this way: */
231 #define redisAssertWithInfo(_c,_o,_e) ((_e)?(void)0 : (_redisAssertWithInfo(_c,_o,#_e,__FILE__,__LINE__),_exit(1)))
232 #define redisAssert(_e) ((_e)?(void)0 : (_redisAssert(#_e,__FILE__,__LINE__),_exit(1)))
233 #define redisPanic(_e) _redisPanic(#_e,__FILE__,__LINE__),_exit(1)
234
235 /*-----------------------------------------------------------------------------
236 * Data types
237 *----------------------------------------------------------------------------*/
238
239 /* A redis object, that is a type able to hold a string / list / set */
240
241 /* The actual Redis Object */
242 #define REDIS_LRU_CLOCK_MAX ((1<<21)-1) /* Max value of obj->lru */
243 #define REDIS_LRU_CLOCK_RESOLUTION 10 /* LRU clock resolution in seconds */
244 typedef struct redisObject {
245 unsigned type:4;
246 unsigned notused:2; /* Not used */
247 unsigned encoding:4;
248 unsigned lru:22; /* lru time (relative to server.lruclock) */
249 int refcount;
250 void *ptr;
251 } robj;
252
253 /* Macro used to initalize a Redis object allocated on the stack.
254 * Note that this macro is taken near the structure definition to make sure
255 * we'll update it when the structure is changed, to avoid bugs like
256 * bug #85 introduced exactly in this way. */
257 #define initStaticStringObject(_var,_ptr) do { \
258 _var.refcount = 1; \
259 _var.type = REDIS_STRING; \
260 _var.encoding = REDIS_ENCODING_RAW; \
261 _var.ptr = _ptr; \
262 } while(0);
263
264 typedef struct redisDb {
265 dict *dict; /* The keyspace for this DB */
266 dict *expires; /* Timeout of keys with a timeout set */
267 dict *blocking_keys; /* Keys with clients waiting for data (BLPOP) */
268 dict *watched_keys; /* WATCHED keys for MULTI/EXEC CAS */
269 int id;
270 } redisDb;
271
272 /* Client MULTI/EXEC state */
273 typedef struct multiCmd {
274 robj **argv;
275 int argc;
276 struct redisCommand *cmd;
277 } multiCmd;
278
279 typedef struct multiState {
280 multiCmd *commands; /* Array of MULTI commands */
281 int count; /* Total number of MULTI commands */
282 } multiState;
283
284 typedef struct blockingState {
285 robj **keys; /* The key we are waiting to terminate a blocking
286 * operation such as BLPOP. Otherwise NULL. */
287 int count; /* Number of blocking keys */
288 time_t timeout; /* Blocking operation timeout. If UNIX current time
289 * is >= timeout then the operation timed out. */
290 robj *target; /* The key that should receive the element,
291 * for BRPOPLPUSH. */
292 } blockingState;
293
294 /* With multiplexing we need to take per-clinet state.
295 * Clients are taken in a liked list. */
296 typedef struct redisClient {
297 int fd;
298 redisDb *db;
299 int dictid;
300 sds querybuf;
301 int argc;
302 robj **argv;
303 struct redisCommand *cmd, *lastcmd;
304 int reqtype;
305 int multibulklen; /* number of multi bulk arguments left to read */
306 long bulklen; /* length of bulk argument in multi bulk request */
307 list *reply;
308 int sentlen;
309 time_t lastinteraction; /* time of the last interaction, used for timeout */
310 int flags; /* REDIS_SLAVE | REDIS_MONITOR | REDIS_MULTI ... */
311 int slaveseldb; /* slave selected db, if this client is a slave */
312 int authenticated; /* when requirepass is non-NULL */
313 int replstate; /* replication state if this is a slave */
314 int repldbfd; /* replication DB file descriptor */
315 long repldboff; /* replication DB file offset */
316 off_t repldbsize; /* replication DB file size */
317 multiState mstate; /* MULTI/EXEC state */
318 blockingState bpop; /* blocking state */
319 list *io_keys; /* Keys this client is waiting to be loaded from the
320 * swap file in order to continue. */
321 list *watched_keys; /* Keys WATCHED for MULTI/EXEC CAS */
322 dict *pubsub_channels; /* channels a client is interested in (SUBSCRIBE) */
323 list *pubsub_patterns; /* patterns a client is interested in (SUBSCRIBE) */
324
325 /* Response buffer */
326 int bufpos;
327 char buf[REDIS_REPLY_CHUNK_BYTES];
328 } redisClient;
329
330 struct saveparam {
331 time_t seconds;
332 int changes;
333 };
334
335 struct sharedObjectsStruct {
336 robj *crlf, *ok, *err, *emptybulk, *czero, *cone, *cnegone, *pong, *space,
337 *colon, *nullbulk, *nullmultibulk, *queued,
338 *emptymultibulk, *wrongtypeerr, *nokeyerr, *syntaxerr, *sameobjecterr,
339 *outofrangeerr, *noscripterr, *loadingerr, *slowscripterr, *plus,
340 *select0, *select1, *select2, *select3, *select4,
341 *select5, *select6, *select7, *select8, *select9,
342 *messagebulk, *pmessagebulk, *subscribebulk, *unsubscribebulk, *mbulk3,
343 *mbulk4, *psubscribebulk, *punsubscribebulk,
344 *integers[REDIS_SHARED_INTEGERS];
345 };
346
347 /* ZSETs use a specialized version of Skiplists */
348 typedef struct zskiplistNode {
349 robj *obj;
350 double score;
351 struct zskiplistNode *backward;
352 struct zskiplistLevel {
353 struct zskiplistNode *forward;
354 unsigned int span;
355 } level[];
356 } zskiplistNode;
357
358 typedef struct zskiplist {
359 struct zskiplistNode *header, *tail;
360 unsigned long length;
361 int level;
362 } zskiplist;
363
364 typedef struct zset {
365 dict *dict;
366 zskiplist *zsl;
367 } zset;
368
369 /*-----------------------------------------------------------------------------
370 * Redis cluster data structures
371 *----------------------------------------------------------------------------*/
372
373 #define REDIS_CLUSTER_SLOTS 4096
374 #define REDIS_CLUSTER_OK 0 /* Everything looks ok */
375 #define REDIS_CLUSTER_FAIL 1 /* The cluster can't work */
376 #define REDIS_CLUSTER_NEEDHELP 2 /* The cluster works, but needs some help */
377 #define REDIS_CLUSTER_NAMELEN 40 /* sha1 hex length */
378 #define REDIS_CLUSTER_PORT_INCR 10000 /* Cluster port = baseport + PORT_INCR */
379
380 struct clusterNode;
381
382 /* clusterLink encapsulates everything needed to talk with a remote node. */
383 typedef struct clusterLink {
384 int fd; /* TCP socket file descriptor */
385 sds sndbuf; /* Packet send buffer */
386 sds rcvbuf; /* Packet reception buffer */
387 struct clusterNode *node; /* Node related to this link if any, or NULL */
388 } clusterLink;
389
390 /* Node flags */
391 #define REDIS_NODE_MASTER 1 /* The node is a master */
392 #define REDIS_NODE_SLAVE 2 /* The node is a slave */
393 #define REDIS_NODE_PFAIL 4 /* Failure? Need acknowledge */
394 #define REDIS_NODE_FAIL 8 /* The node is believed to be malfunctioning */
395 #define REDIS_NODE_MYSELF 16 /* This node is myself */
396 #define REDIS_NODE_HANDSHAKE 32 /* We have still to exchange the first ping */
397 #define REDIS_NODE_NOADDR 64 /* We don't know the address of this node */
398 #define REDIS_NODE_MEET 128 /* Send a MEET message to this node */
399 #define REDIS_NODE_NULL_NAME "\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000"
400
401 struct clusterNode {
402 char name[REDIS_CLUSTER_NAMELEN]; /* Node name, hex string, sha1-size */
403 int flags; /* REDIS_NODE_... */
404 unsigned char slots[REDIS_CLUSTER_SLOTS/8]; /* slots handled by this node */
405 int numslaves; /* Number of slave nodes, if this is a master */
406 struct clusterNode **slaves; /* pointers to slave nodes */
407 struct clusterNode *slaveof; /* pointer to the master node */
408 time_t ping_sent; /* Unix time we sent latest ping */
409 time_t pong_received; /* Unix time we received the pong */
410 char *configdigest; /* Configuration digest of this node */
411 time_t configdigest_ts; /* Configuration digest timestamp */
412 char ip[16]; /* Latest known IP address of this node */
413 int port; /* Latest known port of this node */
414 clusterLink *link; /* TCP/IP link with this node */
415 };
416 typedef struct clusterNode clusterNode;
417
418 typedef struct {
419 char *configfile;
420 clusterNode *myself; /* This node */
421 int state; /* REDIS_CLUSTER_OK, REDIS_CLUSTER_FAIL, ... */
422 int node_timeout;
423 dict *nodes; /* Hash table of name -> clusterNode structures */
424 clusterNode *migrating_slots_to[REDIS_CLUSTER_SLOTS];
425 clusterNode *importing_slots_from[REDIS_CLUSTER_SLOTS];
426 clusterNode *slots[REDIS_CLUSTER_SLOTS];
427 zskiplist *slots_to_keys;
428 } clusterState;
429
430 /* Redis cluster messages header */
431
432 /* Note that the PING, PONG and MEET messages are actually the same exact
433 * kind of packet. PONG is the reply to ping, in the extact format as a PING,
434 * while MEET is a special PING that forces the receiver to add the sender
435 * as a node (if it is not already in the list). */
436 #define CLUSTERMSG_TYPE_PING 0 /* Ping */
437 #define CLUSTERMSG_TYPE_PONG 1 /* Pong (reply to Ping) */
438 #define CLUSTERMSG_TYPE_MEET 2 /* Meet "let's join" message */
439 #define CLUSTERMSG_TYPE_FAIL 3 /* Mark node xxx as failing */
440 #define CLUSTERMSG_TYPE_PUBLISH 4 /* Pub/Sub Publish propatagion */
441
442 /* Initially we don't know our "name", but we'll find it once we connect
443 * to the first node, using the getsockname() function. Then we'll use this
444 * address for all the next messages. */
445 typedef struct {
446 char nodename[REDIS_CLUSTER_NAMELEN];
447 uint32_t ping_sent;
448 uint32_t pong_received;
449 char ip[16]; /* IP address last time it was seen */
450 uint16_t port; /* port last time it was seen */
451 uint16_t flags;
452 uint32_t notused; /* for 64 bit alignment */
453 } clusterMsgDataGossip;
454
455 typedef struct {
456 char nodename[REDIS_CLUSTER_NAMELEN];
457 } clusterMsgDataFail;
458
459 typedef struct {
460 uint32_t channel_len;
461 uint32_t message_len;
462 unsigned char bulk_data[8]; /* defined as 8 just for alignment concerns. */
463 } clusterMsgDataPublish;
464
465 union clusterMsgData {
466 /* PING, MEET and PONG */
467 struct {
468 /* Array of N clusterMsgDataGossip structures */
469 clusterMsgDataGossip gossip[1];
470 } ping;
471
472 /* FAIL */
473 struct {
474 clusterMsgDataFail about;
475 } fail;
476
477 /* PUBLISH */
478 struct {
479 clusterMsgDataPublish msg;
480 } publish;
481 };
482
483 typedef struct {
484 uint32_t totlen; /* Total length of this message */
485 uint16_t type; /* Message type */
486 uint16_t count; /* Only used for some kind of messages. */
487 char sender[REDIS_CLUSTER_NAMELEN]; /* Name of the sender node */
488 unsigned char myslots[REDIS_CLUSTER_SLOTS/8];
489 char slaveof[REDIS_CLUSTER_NAMELEN];
490 char configdigest[32];
491 uint16_t port; /* Sender TCP base port */
492 unsigned char state; /* Cluster state from the POV of the sender */
493 unsigned char notused[5]; /* Reserved for future use. For alignment. */
494 union clusterMsgData data;
495 } clusterMsg;
496
497 /*-----------------------------------------------------------------------------
498 * Global server state
499 *----------------------------------------------------------------------------*/
500
501 struct redisServer {
502 /* General */
503 redisDb *db;
504 dict *commands; /* Command table hahs table */
505 aeEventLoop *el;
506 unsigned lruclock:22; /* Clock incrementing every minute, for LRU */
507 unsigned lruclock_padding:10;
508 int shutdown_asap; /* SHUTDOWN needed ASAP */
509 int activerehashing; /* Incremental rehash in serverCron() */
510 char *requirepass; /* Pass for AUTH command, or NULL */
511 char *pidfile; /* PID file path */
512 /* Networking */
513 int port; /* TCP listening port */
514 char *bindaddr; /* Bind address or NULL */
515 char *unixsocket; /* UNIX socket path */
516 mode_t unixsocketperm; /* UNIX socket permission */
517 int ipfd; /* TCP socket file descriptor */
518 int sofd; /* Unix socket file descriptor */
519 int cfd; /* Cluster bus lisetning socket */
520 list *clients; /* List of active clients */
521 list *slaves, *monitors; /* List of slaves and MONITORs */
522 redisClient *current_client; /* Current client, only used on crash report */
523 char neterr[ANET_ERR_LEN]; /* Error buffer for anet.c */
524 /* RDB / AOF loading information */
525 int loading; /* We are loading data from disk if true */
526 off_t loading_total_bytes;
527 off_t loading_loaded_bytes;
528 time_t loading_start_time;
529 /* Fast pointers to often looked up command */
530 struct redisCommand *delCommand, *multiCommand;
531 int cronloops; /* Number of times the cron function run */
532 time_t lastsave; /* Unix time of last save succeeede */
533 /* Fields used only for stats */
534 time_t stat_starttime; /* Server start time */
535 long long stat_numcommands; /* Number of processed commands */
536 long long stat_numconnections; /* Number of connections received */
537 long long stat_expiredkeys; /* Number of expired keys */
538 long long stat_evictedkeys; /* Number of evicted keys (maxmemory) */
539 long long stat_keyspace_hits; /* Number of successful lookups of keys */
540 long long stat_keyspace_misses; /* Number of failed lookups of keys */
541 size_t stat_peak_memory; /* Max used memory record */
542 long long stat_fork_time; /* Time needed to perform latets fork() */
543 long long stat_rejected_conn; /* Clients rejected because of maxclients */
544 list *slowlog; /* SLOWLOG list of commands */
545 long long slowlog_entry_id; /* SLOWLOG current entry ID */
546 long long slowlog_log_slower_than; /* SLOWLOG time limit (to get logged) */
547 unsigned long slowlog_max_len; /* SLOWLOG max number of items logged */
548 /* Configuration */
549 int verbosity; /* Loglevel in redis.conf */
550 int maxidletime; /* Client timeout in seconds */
551 size_t client_max_querybuf_len; /* Limit for client query buffer length */
552 int dbnum; /* Total number of configured DBs */
553 int daemonize; /* True if running as a daemon */
554 /* AOF persistence */
555 int aof_state; /* REDIS_AOF_(ON|OFF|WAIT_REWRITE) */
556 int aof_fsync; /* Kind of fsync() policy */
557 char *aof_filename; /* Name of the AOF file */
558 int aof_no_fsync_on_rewrite; /* Don't fsync if a rewrite is in prog. */
559 int aof_rewrite_perc; /* Rewrite AOF if % growth is > M and... */
560 off_t aof_rewrite_min_size; /* the AOF file is at least N bytes. */
561 off_t aof_rewrite_base_size; /* AOF size on latest startup or rewrite. */
562 off_t aof_current_size; /* AOF current size. */
563 int aof_rewrite_scheduled; /* Rewrite once BGSAVE terminates. */
564 pid_t aof_child_pid; /* PID if rewriting process */
565 sds aof_rewrite_buf; /* buffer taken by parent during oppend only rewrite */
566 sds aof_buf; /* AOF buffer, written before entering the event loop */
567 int aof_fd; /* File descriptor of currently selected AOF file */
568 int aof_selected_db; /* Currently selected DB in AOF */
569 time_t aof_flush_postponed_start; /* UNIX time of postponed AOF flush */
570 time_t aof_last_fsync; /* UNIX time of last fsync() */
571 /* RDB persistence */
572 long long dirty; /* Changes to DB from the last save */
573 long long dirty_before_bgsave; /* Used to restore dirty on failed BGSAVE */
574 pid_t rdb_child_pid; /* PID of RDB saving child */
575 struct saveparam *saveparams; /* Save points array for RDB */
576 int saveparamslen; /* Number of saving points */
577 char *rdb_filename; /* Name of RDB file */
578 int rdb_compression; /* Use compression in RDB? */
579 /* Logging */
580 char *logfile; /* Path of log file */
581 int syslog_enabled; /* Is syslog enabled? */
582 char *syslog_ident; /* Syslog ident */
583 int syslog_facility; /* Syslog facility */
584 /* Slave specific fields */
585 char *masterauth; /* AUTH with this password with master */
586 char *masterhost; /* Hostname of master */
587 int masterport; /* Port of master */
588 int repl_ping_slave_period; /* Master pings the salve every N seconds */
589 int repl_timeout; /* Timeout after N seconds of master idle */
590 redisClient *master; /* Client that is master for this slave */
591 int repl_syncio_timeout; /* Timeout for synchronous I/O calls */
592 int repl_state; /* Replication status if the instance is a slave */
593 off_t repl_transfer_left; /* Bytes left reading .rdb */
594 int repl_transfer_s; /* Slave -> Master SYNC socket */
595 int repl_transfer_fd; /* Slave -> Master SYNC temp file descriptor */
596 char *repl_transfer_tmpfile; /* Slave-> master SYNC temp file name */
597 time_t repl_transfer_lastio; /* Unix time of the latest read, for timeout */
598 int repl_serve_stale_data; /* Serve stale data when link is down? */
599 time_t repl_down_since; /* Unix time at which link with master went down */
600 /* Limits */
601 unsigned int maxclients; /* Max number of simultaneous clients */
602 unsigned long long maxmemory; /* Max number of memory bytes to use */
603 int maxmemory_policy; /* Policy for key evition */
604 int maxmemory_samples; /* Pricision of random sampling */
605 /* Blocked clients */
606 unsigned int bpop_blocked_clients; /* Number of clients blocked by lists */
607 list *unblocked_clients; /* list of clients to unblock before next loop */
608 /* Sort parameters - qsort_r() is only available under BSD so we
609 * have to take this state global, in order to pass it to sortCompare() */
610 int sort_desc;
611 int sort_alpha;
612 int sort_bypattern;
613 /* Zip structure config, see redis.conf for more information */
614 size_t hash_max_zipmap_entries;
615 size_t hash_max_zipmap_value;
616 size_t list_max_ziplist_entries;
617 size_t list_max_ziplist_value;
618 size_t set_max_intset_entries;
619 size_t zset_max_ziplist_entries;
620 size_t zset_max_ziplist_value;
621 time_t unixtime; /* Unix time sampled every second. */
622 /* Pubsub */
623 dict *pubsub_channels; /* Map channels to list of subscribed clients */
624 list *pubsub_patterns; /* A list of pubsub_patterns */
625 /* Cluster */
626 int cluster_enabled; /* Is cluster enabled? */
627 clusterState cluster; /* State of the cluster */
628 /* Scripting */
629 lua_State *lua; /* The Lua interpreter. We use just one for all clients */
630 redisClient *lua_client; /* The "fake client" to query Redis from Lua */
631 redisClient *lua_caller; /* The client running EVAL right now, or NULL */
632 dict *lua_scripts; /* A dictionary of SHA1 -> Lua scripts */
633 long long lua_time_limit; /* Script timeout in seconds */
634 long long lua_time_start; /* Start time of script */
635 int lua_write_dirty; /* True if a write command was called during the
636 execution of the current script. */
637 int lua_random_dirty; /* True if a random command was called during the
638 execution of the current script. */
639 int lua_timedout; /* True if we reached the time limit for script
640 execution. */
641 int lua_kill; /* Kill the script if true. */
642 /* Assert & bug reportign */
643 char *assert_failed;
644 char *assert_file;
645 int assert_line;
646 int bug_report_start; /* True if bug report header was already logged. */
647 };
648
649 typedef struct pubsubPattern {
650 redisClient *client;
651 robj *pattern;
652 } pubsubPattern;
653
654 typedef void redisCommandProc(redisClient *c);
655 typedef int *redisGetKeysProc(struct redisCommand *cmd, robj **argv, int argc, int *numkeys, int flags);
656 struct redisCommand {
657 char *name;
658 redisCommandProc *proc;
659 int arity;
660 char *sflags; /* Flags as string represenation, one char per flag. */
661 int flags; /* The actual flags, obtained from the 'sflags' field. */
662 /* Use a function to determine keys arguments in a command line.
663 * Used for Redis Cluster redirect. */
664 redisGetKeysProc *getkeys_proc;
665 /* What keys should be loaded in background when calling this command? */
666 int firstkey; /* The first argument that's a key (0 = no keys) */
667 int lastkey; /* THe last argument that's a key */
668 int keystep; /* The step between first and last key */
669 long long microseconds, calls;
670 };
671
672 struct redisFunctionSym {
673 char *name;
674 unsigned long pointer;
675 };
676
677 typedef struct _redisSortObject {
678 robj *obj;
679 union {
680 double score;
681 robj *cmpobj;
682 } u;
683 } redisSortObject;
684
685 typedef struct _redisSortOperation {
686 int type;
687 robj *pattern;
688 } redisSortOperation;
689
690 /* Structure to hold list iteration abstraction. */
691 typedef struct {
692 robj *subject;
693 unsigned char encoding;
694 unsigned char direction; /* Iteration direction */
695 unsigned char *zi;
696 listNode *ln;
697 } listTypeIterator;
698
699 /* Structure for an entry while iterating over a list. */
700 typedef struct {
701 listTypeIterator *li;
702 unsigned char *zi; /* Entry in ziplist */
703 listNode *ln; /* Entry in linked list */
704 } listTypeEntry;
705
706 /* Structure to hold set iteration abstraction. */
707 typedef struct {
708 robj *subject;
709 int encoding;
710 int ii; /* intset iterator */
711 dictIterator *di;
712 } setTypeIterator;
713
714 /* Structure to hold hash iteration abstration. Note that iteration over
715 * hashes involves both fields and values. Because it is possible that
716 * not both are required, store pointers in the iterator to avoid
717 * unnecessary memory allocation for fields/values. */
718 typedef struct {
719 int encoding;
720 unsigned char *zi;
721 unsigned char *zk, *zv;
722 unsigned int zklen, zvlen;
723
724 dictIterator *di;
725 dictEntry *de;
726 } hashTypeIterator;
727
728 #define REDIS_HASH_KEY 1
729 #define REDIS_HASH_VALUE 2
730
731 /*-----------------------------------------------------------------------------
732 * Extern declarations
733 *----------------------------------------------------------------------------*/
734
735 extern struct redisServer server;
736 extern struct sharedObjectsStruct shared;
737 extern dictType setDictType;
738 extern dictType zsetDictType;
739 extern dictType clusterNodesDictType;
740 extern dictType dbDictType;
741 extern double R_Zero, R_PosInf, R_NegInf, R_Nan;
742 dictType hashDictType;
743
744 /*-----------------------------------------------------------------------------
745 * Functions prototypes
746 *----------------------------------------------------------------------------*/
747
748 /* Utils */
749 long long ustime(void);
750 long long mstime(void);
751
752 /* networking.c -- Networking and Client related operations */
753 redisClient *createClient(int fd);
754 void closeTimedoutClients(void);
755 void freeClient(redisClient *c);
756 void resetClient(redisClient *c);
757 void sendReplyToClient(aeEventLoop *el, int fd, void *privdata, int mask);
758 void addReply(redisClient *c, robj *obj);
759 void *addDeferredMultiBulkLength(redisClient *c);
760 void setDeferredMultiBulkLength(redisClient *c, void *node, long length);
761 void addReplySds(redisClient *c, sds s);
762 void processInputBuffer(redisClient *c);
763 void acceptTcpHandler(aeEventLoop *el, int fd, void *privdata, int mask);
764 void acceptUnixHandler(aeEventLoop *el, int fd, void *privdata, int mask);
765 void readQueryFromClient(aeEventLoop *el, int fd, void *privdata, int mask);
766 void addReplyBulk(redisClient *c, robj *obj);
767 void addReplyBulkCString(redisClient *c, char *s);
768 void addReplyBulkCBuffer(redisClient *c, void *p, size_t len);
769 void addReplyBulkLongLong(redisClient *c, long long ll);
770 void acceptHandler(aeEventLoop *el, int fd, void *privdata, int mask);
771 void addReply(redisClient *c, robj *obj);
772 void addReplySds(redisClient *c, sds s);
773 void addReplyError(redisClient *c, char *err);
774 void addReplyStatus(redisClient *c, char *status);
775 void addReplyDouble(redisClient *c, double d);
776 void addReplyLongLong(redisClient *c, long long ll);
777 void addReplyMultiBulkLen(redisClient *c, long length);
778 void copyClientOutputBuffer(redisClient *dst, redisClient *src);
779 void *dupClientReplyValue(void *o);
780 void getClientsMaxBuffers(unsigned long *longest_output_list,
781 unsigned long *biggest_input_buffer);
782 sds getClientInfoString(redisClient *client);
783 sds getAllClientsInfoString(void);
784 void rewriteClientCommandVector(redisClient *c, int argc, ...);
785 void rewriteClientCommandArgument(redisClient *c, int i, robj *newval);
786
787 #ifdef __GNUC__
788 void addReplyErrorFormat(redisClient *c, const char *fmt, ...)
789 __attribute__((format(printf, 2, 3)));
790 void addReplyStatusFormat(redisClient *c, const char *fmt, ...)
791 __attribute__((format(printf, 2, 3)));
792 #else
793 void addReplyErrorFormat(redisClient *c, const char *fmt, ...);
794 void addReplyStatusFormat(redisClient *c, const char *fmt, ...);
795 #endif
796
797 /* List data type */
798 void listTypeTryConversion(robj *subject, robj *value);
799 void listTypePush(robj *subject, robj *value, int where);
800 robj *listTypePop(robj *subject, int where);
801 unsigned long listTypeLength(robj *subject);
802 listTypeIterator *listTypeInitIterator(robj *subject, int index, unsigned char direction);
803 void listTypeReleaseIterator(listTypeIterator *li);
804 int listTypeNext(listTypeIterator *li, listTypeEntry *entry);
805 robj *listTypeGet(listTypeEntry *entry);
806 void listTypeInsert(listTypeEntry *entry, robj *value, int where);
807 int listTypeEqual(listTypeEntry *entry, robj *o);
808 void listTypeDelete(listTypeEntry *entry);
809 void listTypeConvert(robj *subject, int enc);
810 void unblockClientWaitingData(redisClient *c);
811 int handleClientsWaitingListPush(redisClient *c, robj *key, robj *ele);
812 void popGenericCommand(redisClient *c, int where);
813
814 /* MULTI/EXEC/WATCH... */
815 void unwatchAllKeys(redisClient *c);
816 void initClientMultiState(redisClient *c);
817 void freeClientMultiState(redisClient *c);
818 void queueMultiCommand(redisClient *c);
819 void touchWatchedKey(redisDb *db, robj *key);
820 void touchWatchedKeysOnFlush(int dbid);
821
822 /* Redis object implementation */
823 void decrRefCount(void *o);
824 void incrRefCount(robj *o);
825 robj *resetRefCount(robj *obj);
826 void freeStringObject(robj *o);
827 void freeListObject(robj *o);
828 void freeSetObject(robj *o);
829 void freeZsetObject(robj *o);
830 void freeHashObject(robj *o);
831 robj *createObject(int type, void *ptr);
832 robj *createStringObject(char *ptr, size_t len);
833 robj *dupStringObject(robj *o);
834 int isObjectRepresentableAsLongLong(robj *o, long long *llongval);
835 robj *tryObjectEncoding(robj *o);
836 robj *getDecodedObject(robj *o);
837 size_t stringObjectLen(robj *o);
838 robj *createStringObjectFromLongLong(long long value);
839 robj *createStringObjectFromLongDouble(long double value);
840 robj *createListObject(void);
841 robj *createZiplistObject(void);
842 robj *createSetObject(void);
843 robj *createIntsetObject(void);
844 robj *createHashObject(void);
845 robj *createZsetObject(void);
846 robj *createZsetZiplistObject(void);
847 int getLongFromObjectOrReply(redisClient *c, robj *o, long *target, const char *msg);
848 int checkType(redisClient *c, robj *o, int type);
849 int getLongLongFromObjectOrReply(redisClient *c, robj *o, long long *target, const char *msg);
850 int getDoubleFromObjectOrReply(redisClient *c, robj *o, double *target, const char *msg);
851 int getLongLongFromObject(robj *o, long long *target);
852 int getLongDoubleFromObject(robj *o, long double *target);
853 int getLongDoubleFromObjectOrReply(redisClient *c, robj *o, long double *target, const char *msg);
854 char *strEncoding(int encoding);
855 int compareStringObjects(robj *a, robj *b);
856 int equalStringObjects(robj *a, robj *b);
857 unsigned long estimateObjectIdleTime(robj *o);
858
859 /* Synchronous I/O with timeout */
860 int syncWrite(int fd, char *ptr, ssize_t size, int timeout);
861 int syncRead(int fd, char *ptr, ssize_t size, int timeout);
862 int syncReadLine(int fd, char *ptr, ssize_t size, int timeout);
863
864 /* Replication */
865 void replicationFeedSlaves(list *slaves, int dictid, robj **argv, int argc);
866 void replicationFeedMonitors(list *monitors, int dictid, robj **argv, int argc);
867 void updateSlavesWaitingBgsave(int bgsaveerr);
868 void replicationCron(void);
869
870 /* Generic persistence functions */
871 void startLoading(FILE *fp);
872 void loadingProgress(off_t pos);
873 void stopLoading(void);
874
875 /* RDB persistence */
876 #include "rdb.h"
877
878 /* AOF persistence */
879 void flushAppendOnlyFile(int force);
880 void feedAppendOnlyFile(struct redisCommand *cmd, int dictid, robj **argv, int argc);
881 void aofRemoveTempFile(pid_t childpid);
882 int rewriteAppendOnlyFileBackground(void);
883 int loadAppendOnlyFile(char *filename);
884 void stopAppendOnly(void);
885 int startAppendOnly(void);
886 void backgroundRewriteDoneHandler(int exitcode, int bysignal);
887
888 /* Sorted sets data type */
889
890 /* Struct to hold a inclusive/exclusive range spec. */
891 typedef struct {
892 double min, max;
893 int minex, maxex; /* are min or max exclusive? */
894 } zrangespec;
895
896 zskiplist *zslCreate(void);
897 void zslFree(zskiplist *zsl);
898 zskiplistNode *zslInsert(zskiplist *zsl, double score, robj *obj);
899 unsigned char *zzlInsert(unsigned char *zl, robj *ele, double score);
900 int zslDelete(zskiplist *zsl, double score, robj *obj);
901 zskiplistNode *zslFirstInRange(zskiplist *zsl, zrangespec range);
902 double zzlGetScore(unsigned char *sptr);
903 void zzlNext(unsigned char *zl, unsigned char **eptr, unsigned char **sptr);
904 void zzlPrev(unsigned char *zl, unsigned char **eptr, unsigned char **sptr);
905 unsigned int zsetLength(robj *zobj);
906 void zsetConvert(robj *zobj, int encoding);
907
908 /* Core functions */
909 void freeMemoryIfNeeded(void);
910 int processCommand(redisClient *c);
911 void setupSignalHandlers(void);
912 struct redisCommand *lookupCommand(sds name);
913 struct redisCommand *lookupCommandByCString(char *s);
914 void call(redisClient *c);
915 int prepareForShutdown();
916 void redisLog(int level, const char *fmt, ...);
917 void redisLogRaw(int level, const char *msg);
918 void usage();
919 void updateDictResizePolicy(void);
920 int htNeedsResize(dict *dict);
921 void oom(const char *msg);
922 void populateCommandTable(void);
923 void resetCommandTableStats(void);
924
925 /* Set data type */
926 robj *setTypeCreate(robj *value);
927 int setTypeAdd(robj *subject, robj *value);
928 int setTypeRemove(robj *subject, robj *value);
929 int setTypeIsMember(robj *subject, robj *value);
930 setTypeIterator *setTypeInitIterator(robj *subject);
931 void setTypeReleaseIterator(setTypeIterator *si);
932 int setTypeNext(setTypeIterator *si, robj **objele, int64_t *llele);
933 robj *setTypeNextObject(setTypeIterator *si);
934 int setTypeRandomElement(robj *setobj, robj **objele, int64_t *llele);
935 unsigned long setTypeSize(robj *subject);
936 void setTypeConvert(robj *subject, int enc);
937
938 /* Hash data type */
939 void convertToRealHash(robj *o);
940 void hashTypeTryConversion(robj *subject, robj **argv, int start, int end);
941 void hashTypeTryObjectEncoding(robj *subject, robj **o1, robj **o2);
942 int hashTypeGet(robj *o, robj *key, robj **objval, unsigned char **v, unsigned int *vlen);
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 int hashTypeCurrent(hashTypeIterator *hi, int what, robj **objval, unsigned char **v, unsigned int *vlen);
952 robj *hashTypeCurrentObject(hashTypeIterator *hi, int what);
953 robj *hashTypeLookupWriteOrCreate(redisClient *c, robj *key);
954
955 /* Pub / Sub */
956 int pubsubUnsubscribeAllChannels(redisClient *c, int notify);
957 int pubsubUnsubscribeAllPatterns(redisClient *c, int notify);
958 void freePubsubPattern(void *p);
959 int listMatchPubsubPattern(void *a, void *b);
960 int pubsubPublishMessage(robj *channel, robj *message);
961
962 /* Configuration */
963 void loadServerConfig(char *filename, char *options);
964 void appendServerSaveParams(time_t seconds, int changes);
965 void resetServerSaveParams();
966
967 /* db.c -- Keyspace access API */
968 int removeExpire(redisDb *db, robj *key);
969 void propagateExpire(redisDb *db, robj *key);
970 int expireIfNeeded(redisDb *db, robj *key);
971 long long getExpire(redisDb *db, robj *key);
972 void setExpire(redisDb *db, robj *key, long long when);
973 robj *lookupKey(redisDb *db, robj *key);
974 robj *lookupKeyRead(redisDb *db, robj *key);
975 robj *lookupKeyWrite(redisDb *db, robj *key);
976 robj *lookupKeyReadOrReply(redisClient *c, robj *key, robj *reply);
977 robj *lookupKeyWriteOrReply(redisClient *c, robj *key, robj *reply);
978 void dbAdd(redisDb *db, robj *key, robj *val);
979 void dbOverwrite(redisDb *db, robj *key, robj *val);
980 void setKey(redisDb *db, robj *key, robj *val);
981 int dbExists(redisDb *db, robj *key);
982 robj *dbRandomKey(redisDb *db);
983 int dbDelete(redisDb *db, robj *key);
984 long long emptyDb();
985 int selectDb(redisClient *c, int id);
986 void signalModifiedKey(redisDb *db, robj *key);
987 void signalFlushedDb(int dbid);
988 unsigned int GetKeysInSlot(unsigned int hashslot, robj **keys, unsigned int count);
989
990 /* API to get key arguments from commands */
991 #define REDIS_GETKEYS_ALL 0
992 #define REDIS_GETKEYS_PRELOAD 1
993 int *getKeysFromCommand(struct redisCommand *cmd, robj **argv, int argc, int *numkeys, int flags);
994 void getKeysFreeResult(int *result);
995 int *noPreloadGetKeys(struct redisCommand *cmd,robj **argv, int argc, int *numkeys, int flags);
996 int *renameGetKeys(struct redisCommand *cmd,robj **argv, int argc, int *numkeys, int flags);
997 int *zunionInterGetKeys(struct redisCommand *cmd,robj **argv, int argc, int *numkeys, int flags);
998
999 /* Cluster */
1000 void clusterInit(void);
1001 unsigned short crc16(const char *buf, int len);
1002 unsigned int keyHashSlot(char *key, int keylen);
1003 clusterNode *createClusterNode(char *nodename, int flags);
1004 int clusterAddNode(clusterNode *node);
1005 void clusterCron(void);
1006 clusterNode *getNodeByQuery(redisClient *c, struct redisCommand *cmd, robj **argv, int argc, int *hashslot, int *ask);
1007 void clusterPropagatePublish(robj *channel, robj *message);
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 clusterCommand(redisClient *c);
1141 void restoreCommand(redisClient *c);
1142 void migrateCommand(redisClient *c);
1143 void askingCommand(redisClient *c);
1144 void dumpCommand(redisClient *c);
1145 void objectCommand(redisClient *c);
1146 void clientCommand(redisClient *c);
1147 void evalCommand(redisClient *c);
1148 void evalShaCommand(redisClient *c);
1149 void scriptCommand(redisClient *c);
1150
1151 #if defined(__GNUC__)
1152 void *calloc(size_t count, size_t size) __attribute__ ((deprecated));
1153 void free(void *ptr) __attribute__ ((deprecated));
1154 void *malloc(size_t size) __attribute__ ((deprecated));
1155 void *realloc(void *ptr, size_t size) __attribute__ ((deprecated));
1156 #endif
1157
1158 /* Debugging stuff */
1159 void _redisAssertWithInfo(redisClient *c, robj *o, char *estr, char *file, int line);
1160 void _redisAssert(char *estr, char *file, int line);
1161 void _redisPanic(char *msg, char *file, int line);
1162 void bugReportStart(void);
1163 void redisLogObjectDebugInfo(robj *o);
1164 void sigsegvHandler(int sig, siginfo_t *info, void *secret);
1165 sds genRedisInfoString(char *section);
1166 #endif
Redis += OpenLDAP MDB