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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 (60*5) /* default client timeout */
43 #define REDIS_IOBUF_LEN 1024
44 #define REDIS_LOADBUF_LEN 1024
45 #define REDIS_DEFAULT_DBNUM 16
46 #define REDIS_CONFIGLINE_MAX 1024
47 #define REDIS_MAX_SYNC_TIME 60 /* Slave can't take more to sync */
48 #define REDIS_EXPIRELOOKUPS_PER_CRON 10 /* lookup 10 expires per loop */
49 #define REDIS_MAX_WRITE_PER_EVENT (1024*64)
50 #define REDIS_REQUEST_MAX_SIZE (1024*1024*256) /* max bytes in inline command */
51 #define REDIS_SHARED_INTEGERS 10000
52 #define REDIS_REPLY_CHUNK_BYTES (5*1500) /* 5 TCP packets with default MTU */
53 #define REDIS_MAX_LOGMSG_LEN 1024 /* Default maximum length of syslog messages */
54 #define REDIS_AUTO_AOFREWRITE_PERC 100
55 #define REDIS_AUTO_AOFREWRITE_MIN_SIZE (1024*1024)
56 #define REDIS_SLOWLOG_LOG_SLOWER_THAN 10000
57 #define REDIS_SLOWLOG_MAX_LEN 64
58
59 /* Hash table parameters */
60 #define REDIS_HT_MINFILL 10 /* Minimal hash table fill 10% */
61
62 /* Command flags:
63 * REDIS_CMD_DENYOOM:
64 * Commands marked with this flag will return an error when 'maxmemory' is
65 * set and the server is using more than 'maxmemory' bytes of memory.
66 * In short: commands with this flag are denied on low memory conditions.
67 * REDIS_CMD_FORCE_REPLICATION:
68 * Force replication even if dirty is 0. */
69 #define REDIS_CMD_DENYOOM 4
70 #define REDIS_CMD_FORCE_REPLICATION 8
71
72 /* Object types */
73 #define REDIS_STRING 0
74 #define REDIS_LIST 1
75 #define REDIS_SET 2
76 #define REDIS_ZSET 3
77 #define REDIS_HASH 4
78 #define REDIS_VMPOINTER 8
79
80 /* Objects encoding. Some kind of objects like Strings and Hashes can be
81 * internally represented in multiple ways. The 'encoding' field of the object
82 * is set to one of this fields for this object. */
83 #define REDIS_ENCODING_RAW 0 /* Raw representation */
84 #define REDIS_ENCODING_INT 1 /* Encoded as integer */
85 #define REDIS_ENCODING_HT 2 /* Encoded as hash table */
86 #define REDIS_ENCODING_ZIPMAP 3 /* Encoded as zipmap */
87 #define REDIS_ENCODING_LINKEDLIST 4 /* Encoded as regular linked list */
88 #define REDIS_ENCODING_ZIPLIST 5 /* Encoded as ziplist */
89 #define REDIS_ENCODING_INTSET 6 /* Encoded as intset */
90 #define REDIS_ENCODING_SKIPLIST 7 /* Encoded as skiplist */
91
92 /* Object types only used for dumping to disk */
93 #define REDIS_EXPIRETIME 253
94 #define REDIS_SELECTDB 254
95 #define REDIS_EOF 255
96
97 /* Defines related to the dump file format. To store 32 bits lengths for short
98 * keys requires a lot of space, so we check the most significant 2 bits of
99 * the first byte to interpreter the length:
100 *
101 * 00|000000 => if the two MSB are 00 the len is the 6 bits of this byte
102 * 01|000000 00000000 => 01, the len is 14 byes, 6 bits + 8 bits of next byte
103 * 10|000000 [32 bit integer] => if it's 01, a full 32 bit len will follow
104 * 11|000000 this means: specially encoded object will follow. The six bits
105 * number specify the kind of object that follows.
106 * See the REDIS_RDB_ENC_* defines.
107 *
108 * Lenghts up to 63 are stored using a single byte, most DB keys, and may
109 * values, will fit inside. */
110 #define REDIS_RDB_6BITLEN 0
111 #define REDIS_RDB_14BITLEN 1
112 #define REDIS_RDB_32BITLEN 2
113 #define REDIS_RDB_ENCVAL 3
114 #define REDIS_RDB_LENERR UINT_MAX
115
116 /* When a length of a string object stored on disk has the first two bits
117 * set, the remaining two bits specify a special encoding for the object
118 * accordingly to the following defines: */
119 #define REDIS_RDB_ENC_INT8 0 /* 8 bit signed integer */
120 #define REDIS_RDB_ENC_INT16 1 /* 16 bit signed integer */
121 #define REDIS_RDB_ENC_INT32 2 /* 32 bit signed integer */
122 #define REDIS_RDB_ENC_LZF 3 /* string compressed with FASTLZ */
123
124 /* Client flags */
125 #define REDIS_SLAVE 1 /* This client is a slave server */
126 #define REDIS_MASTER 2 /* This client is a master server */
127 #define REDIS_MONITOR 4 /* This client is a slave monitor, see MONITOR */
128 #define REDIS_MULTI 8 /* This client is in a MULTI context */
129 #define REDIS_BLOCKED 16 /* The client is waiting in a blocking operation */
130 #define REDIS_DIRTY_CAS 64 /* Watched keys modified. EXEC will fail. */
131 #define REDIS_CLOSE_AFTER_REPLY 128 /* Close after writing entire reply. */
132 #define REDIS_UNBLOCKED 256 /* This client was unblocked and is stored in
133 server.unblocked_clients */
134 #define REDIS_LUA_CLIENT 512 /* This is a non connected client used by Lua */
135
136 /* Client request types */
137 #define REDIS_REQ_INLINE 1
138 #define REDIS_REQ_MULTIBULK 2
139
140 /* Slave replication state - slave side */
141 #define REDIS_REPL_NONE 0 /* No active replication */
142 #define REDIS_REPL_CONNECT 1 /* Must connect to master */
143 #define REDIS_REPL_CONNECTING 2 /* Connecting to master */
144 #define REDIS_REPL_TRANSFER 3 /* Receiving .rdb from master */
145 #define REDIS_REPL_CONNECTED 4 /* Connected to master */
146
147 /* Synchronous read timeout - slave side */
148 #define REDIS_REPL_SYNCIO_TIMEOUT 5
149
150 /* Slave replication state - from the point of view of master
151 * Note that in SEND_BULK and ONLINE state the slave receives new updates
152 * in its output queue. In the WAIT_BGSAVE state instead the server is waiting
153 * to start the next background saving in order to send updates to it. */
154 #define REDIS_REPL_WAIT_BGSAVE_START 3 /* master waits bgsave to start feeding it */
155 #define REDIS_REPL_WAIT_BGSAVE_END 4 /* master waits bgsave to start bulk DB transmission */
156 #define REDIS_REPL_SEND_BULK 5 /* master is sending the bulk DB */
157 #define REDIS_REPL_ONLINE 6 /* bulk DB already transmitted, receive updates */
158
159 /* List related stuff */
160 #define REDIS_HEAD 0
161 #define REDIS_TAIL 1
162
163 /* Sort operations */
164 #define REDIS_SORT_GET 0
165 #define REDIS_SORT_ASC 1
166 #define REDIS_SORT_DESC 2
167 #define REDIS_SORTKEY_MAX 1024
168
169 /* Log levels */
170 #define REDIS_DEBUG 0
171 #define REDIS_VERBOSE 1
172 #define REDIS_NOTICE 2
173 #define REDIS_WARNING 3
174 #define REDIS_LOG_RAW (1<<10) /* Modifier to log without timestamp */
175
176 /* Anti-warning macro... */
177 #define REDIS_NOTUSED(V) ((void) V)
178
179 #define ZSKIPLIST_MAXLEVEL 32 /* Should be enough for 2^32 elements */
180 #define ZSKIPLIST_P 0.25 /* Skiplist P = 1/4 */
181
182 /* Append only defines */
183 #define APPENDFSYNC_NO 0
184 #define APPENDFSYNC_ALWAYS 1
185 #define APPENDFSYNC_EVERYSEC 2
186
187 /* Zip structure related defaults */
188 #define REDIS_HASH_MAX_ZIPMAP_ENTRIES 512
189 #define REDIS_HASH_MAX_ZIPMAP_VALUE 64
190 #define REDIS_LIST_MAX_ZIPLIST_ENTRIES 512
191 #define REDIS_LIST_MAX_ZIPLIST_VALUE 64
192 #define REDIS_SET_MAX_INTSET_ENTRIES 512
193 #define REDIS_ZSET_MAX_ZIPLIST_ENTRIES 128
194 #define REDIS_ZSET_MAX_ZIPLIST_VALUE 64
195
196 /* Sets operations codes */
197 #define REDIS_OP_UNION 0
198 #define REDIS_OP_DIFF 1
199 #define REDIS_OP_INTER 2
200
201 /* Redis maxmemory strategies */
202 #define REDIS_MAXMEMORY_VOLATILE_LRU 0
203 #define REDIS_MAXMEMORY_VOLATILE_TTL 1
204 #define REDIS_MAXMEMORY_VOLATILE_RANDOM 2
205 #define REDIS_MAXMEMORY_ALLKEYS_LRU 3
206 #define REDIS_MAXMEMORY_ALLKEYS_RANDOM 4
207 #define REDIS_MAXMEMORY_NO_EVICTION 5
208
209 /* Scripting */
210 #define REDIS_LUA_TIME_LIMIT 60000 /* milliseconds */
211
212 /* We can print the stacktrace, so our assert is defined this way: */
213 #define redisAssert(_e) ((_e)?(void)0 : (_redisAssert(#_e,__FILE__,__LINE__),_exit(1)))
214 #define redisPanic(_e) _redisPanic(#_e,__FILE__,__LINE__),_exit(1)
215 void _redisAssert(char *estr, char *file, int line);
216 void _redisPanic(char *msg, char *file, int line);
217
218 /*-----------------------------------------------------------------------------
219 * Data types
220 *----------------------------------------------------------------------------*/
221
222 /* A redis object, that is a type able to hold a string / list / set */
223
224 /* The actual Redis Object */
225 #define REDIS_LRU_CLOCK_MAX ((1<<21)-1) /* Max value of obj->lru */
226 #define REDIS_LRU_CLOCK_RESOLUTION 10 /* LRU clock resolution in seconds */
227 typedef struct redisObject {
228 unsigned type:4;
229 unsigned notused:2; /* Not used */
230 unsigned encoding:4;
231 unsigned lru:22; /* lru time (relative to server.lruclock) */
232 int refcount;
233 void *ptr;
234 /* VM fields are only allocated if VM is active, otherwise the
235 * object allocation function will just allocate
236 * sizeof(redisObjct) minus sizeof(redisObjectVM), so using
237 * Redis without VM active will not have any overhead. */
238 } robj;
239
240 /* The VM pointer structure - identifies an object in the swap file.
241 *
242 * This object is stored in place of the value
243 * object in the main key->value hash table representing a database.
244 * Note that the first fields (type, storage) are the same as the redisObject
245 * structure so that vmPointer strucuters can be accessed even when casted
246 * as redisObject structures.
247 *
248 * This is useful as we don't know if a value object is or not on disk, but we
249 * are always able to read obj->storage to check this. For vmPointer
250 * structures "type" is set to REDIS_VMPOINTER (even if without this field
251 * is still possible to check the kind of object from the value of 'storage').*/
252 typedef struct vmPointer {
253 unsigned type:4;
254 unsigned storage:2; /* REDIS_VM_SWAPPED or REDIS_VM_LOADING */
255 unsigned notused:26;
256 unsigned int vtype; /* type of the object stored in the swap file */
257 off_t page; /* the page at witch the object is stored on disk */
258 off_t usedpages; /* number of pages used on disk */
259 } vmpointer;
260
261 /* Macro used to initalize a Redis object allocated on the stack.
262 * Note that this macro is taken near the structure definition to make sure
263 * we'll update it when the structure is changed, to avoid bugs like
264 * bug #85 introduced exactly in this way. */
265 #define initStaticStringObject(_var,_ptr) do { \
266 _var.refcount = 1; \
267 _var.type = REDIS_STRING; \
268 _var.encoding = REDIS_ENCODING_RAW; \
269 _var.ptr = _ptr; \
270 } while(0);
271
272 typedef struct redisDb {
273 dict *dict; /* The keyspace for this DB */
274 dict *expires; /* Timeout of keys with a timeout set */
275 dict *blocking_keys; /* Keys with clients waiting for data (BLPOP) */
276 dict *watched_keys; /* WATCHED keys for MULTI/EXEC CAS */
277 int id;
278 } redisDb;
279
280 /* Client MULTI/EXEC state */
281 typedef struct multiCmd {
282 robj **argv;
283 int argc;
284 struct redisCommand *cmd;
285 } multiCmd;
286
287 typedef struct multiState {
288 multiCmd *commands; /* Array of MULTI commands */
289 int count; /* Total number of MULTI commands */
290 } multiState;
291
292 typedef struct blockingState {
293 robj **keys; /* The key we are waiting to terminate a blocking
294 * operation such as BLPOP. Otherwise NULL. */
295 int count; /* Number of blocking keys */
296 time_t timeout; /* Blocking operation timeout. If UNIX current time
297 * is >= timeout then the operation timed out. */
298 robj *target; /* The key that should receive the element,
299 * for BRPOPLPUSH. */
300 } blockingState;
301
302 /* With multiplexing we need to take per-clinet state.
303 * Clients are taken in a liked list. */
304 typedef struct redisClient {
305 int fd;
306 redisDb *db;
307 int dictid;
308 sds querybuf;
309 int argc;
310 robj **argv;
311 struct redisCommand *cmd;
312 int reqtype;
313 int multibulklen; /* number of multi bulk arguments left to read */
314 long bulklen; /* length of bulk argument in multi bulk request */
315 list *reply;
316 int sentlen;
317 time_t lastinteraction; /* time of the last interaction, used for timeout */
318 int flags; /* REDIS_SLAVE | REDIS_MONITOR | REDIS_MULTI ... */
319 int slaveseldb; /* slave selected db, if this client is a slave */
320 int authenticated; /* when requirepass is non-NULL */
321 int replstate; /* replication state if this is a slave */
322 int repldbfd; /* replication DB file descriptor */
323 long repldboff; /* replication DB file offset */
324 off_t repldbsize; /* replication DB file size */
325 multiState mstate; /* MULTI/EXEC state */
326 blockingState bpop; /* blocking state */
327 list *io_keys; /* Keys this client is waiting to be loaded from the
328 * swap file in order to continue. */
329 list *watched_keys; /* Keys WATCHED for MULTI/EXEC CAS */
330 dict *pubsub_channels; /* channels a client is interested in (SUBSCRIBE) */
331 list *pubsub_patterns; /* patterns a client is interested in (SUBSCRIBE) */
332
333 /* Response buffer */
334 int bufpos;
335 char buf[REDIS_REPLY_CHUNK_BYTES];
336 } redisClient;
337
338 struct saveparam {
339 time_t seconds;
340 int changes;
341 };
342
343 struct sharedObjectsStruct {
344 robj *crlf, *ok, *err, *emptybulk, *czero, *cone, *cnegone, *pong, *space,
345 *colon, *nullbulk, *nullmultibulk, *queued,
346 *emptymultibulk, *wrongtypeerr, *nokeyerr, *syntaxerr, *sameobjecterr,
347 *outofrangeerr, *noscripterr, *loadingerr, *plus,
348 *select0, *select1, *select2, *select3, *select4,
349 *select5, *select6, *select7, *select8, *select9,
350 *messagebulk, *pmessagebulk, *subscribebulk, *unsubscribebulk, *mbulk3,
351 *mbulk4, *psubscribebulk, *punsubscribebulk,
352 *integers[REDIS_SHARED_INTEGERS];
353 };
354
355 /* ZSETs use a specialized version of Skiplists */
356 typedef struct zskiplistNode {
357 robj *obj;
358 double score;
359 struct zskiplistNode *backward;
360 struct zskiplistLevel {
361 struct zskiplistNode *forward;
362 unsigned int span;
363 } level[];
364 } zskiplistNode;
365
366 typedef struct zskiplist {
367 struct zskiplistNode *header, *tail;
368 unsigned long length;
369 int level;
370 } zskiplist;
371
372 typedef struct zset {
373 dict *dict;
374 zskiplist *zsl;
375 } zset;
376
377 /*-----------------------------------------------------------------------------
378 * Redis cluster data structures
379 *----------------------------------------------------------------------------*/
380
381 #define REDIS_CLUSTER_SLOTS 4096
382 #define REDIS_CLUSTER_OK 0 /* Everything looks ok */
383 #define REDIS_CLUSTER_FAIL 1 /* The cluster can't work */
384 #define REDIS_CLUSTER_NEEDHELP 2 /* The cluster works, but needs some help */
385 #define REDIS_CLUSTER_NAMELEN 40 /* sha1 hex length */
386 #define REDIS_CLUSTER_PORT_INCR 10000 /* Cluster port = baseport + PORT_INCR */
387
388 struct clusterNode;
389
390 /* clusterLink encapsulates everything needed to talk with a remote node. */
391 typedef struct clusterLink {
392 int fd; /* TCP socket file descriptor */
393 sds sndbuf; /* Packet send buffer */
394 sds rcvbuf; /* Packet reception buffer */
395 struct clusterNode *node; /* Node related to this link if any, or NULL */
396 } clusterLink;
397
398 /* Node flags */
399 #define REDIS_NODE_MASTER 1 /* The node is a master */
400 #define REDIS_NODE_SLAVE 2 /* The node is a slave */
401 #define REDIS_NODE_PFAIL 4 /* Failure? Need acknowledge */
402 #define REDIS_NODE_FAIL 8 /* The node is believed to be malfunctioning */
403 #define REDIS_NODE_MYSELF 16 /* This node is myself */
404 #define REDIS_NODE_HANDSHAKE 32 /* We have still to exchange the first ping */
405 #define REDIS_NODE_NOADDR 64 /* We don't know the address of this node */
406 #define REDIS_NODE_MEET 128 /* Send a MEET message to this node */
407 #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"
408
409 struct clusterNode {
410 char name[REDIS_CLUSTER_NAMELEN]; /* Node name, hex string, sha1-size */
411 int flags; /* REDIS_NODE_... */
412 unsigned char slots[REDIS_CLUSTER_SLOTS/8]; /* slots handled by this node */
413 int numslaves; /* Number of slave nodes, if this is a master */
414 struct clusterNode **slaves; /* pointers to slave nodes */
415 struct clusterNode *slaveof; /* pointer to the master node */
416 time_t ping_sent; /* Unix time we sent latest ping */
417 time_t pong_received; /* Unix time we received the pong */
418 char *configdigest; /* Configuration digest of this node */
419 time_t configdigest_ts; /* Configuration digest timestamp */
420 char ip[16]; /* Latest known IP address of this node */
421 int port; /* Latest known port of this node */
422 clusterLink *link; /* TCP/IP link with this node */
423 };
424 typedef struct clusterNode clusterNode;
425
426 typedef struct {
427 char *configfile;
428 clusterNode *myself; /* This node */
429 int state; /* REDIS_CLUSTER_OK, REDIS_CLUSTER_FAIL, ... */
430 int node_timeout;
431 dict *nodes; /* Hash table of name -> clusterNode structures */
432 clusterNode *migrating_slots_to[REDIS_CLUSTER_SLOTS];
433 clusterNode *importing_slots_from[REDIS_CLUSTER_SLOTS];
434 clusterNode *slots[REDIS_CLUSTER_SLOTS];
435 zskiplist *slots_to_keys;
436 } clusterState;
437
438 /* Redis cluster messages header */
439
440 /* Note that the PING, PONG and MEET messages are actually the same exact
441 * kind of packet. PONG is the reply to ping, in the extact format as a PING,
442 * while MEET is a special PING that forces the receiver to add the sender
443 * as a node (if it is not already in the list). */
444 #define CLUSTERMSG_TYPE_PING 0 /* Ping */
445 #define CLUSTERMSG_TYPE_PONG 1 /* Pong (reply to Ping) */
446 #define CLUSTERMSG_TYPE_MEET 2 /* Meet "let's join" message */
447 #define CLUSTERMSG_TYPE_FAIL 3 /* Mark node xxx as failing */
448
449 /* Initially we don't know our "name", but we'll find it once we connect
450 * to the first node, using the getsockname() function. Then we'll use this
451 * address for all the next messages. */
452 typedef struct {
453 char nodename[REDIS_CLUSTER_NAMELEN];
454 uint32_t ping_sent;
455 uint32_t pong_received;
456 char ip[16]; /* IP address last time it was seen */
457 uint16_t port; /* port last time it was seen */
458 uint16_t flags;
459 uint32_t notused; /* for 64 bit alignment */
460 } clusterMsgDataGossip;
461
462 typedef struct {
463 char nodename[REDIS_CLUSTER_NAMELEN];
464 } clusterMsgDataFail;
465
466 union clusterMsgData {
467 /* PING, MEET and PONG */
468 struct {
469 /* Array of N clusterMsgDataGossip structures */
470 clusterMsgDataGossip gossip[1];
471 } ping;
472 /* FAIL */
473 struct {
474 clusterMsgDataFail about;
475 } fail;
476 };
477
478 typedef struct {
479 uint32_t totlen; /* Total length of this message */
480 uint16_t type; /* Message type */
481 uint16_t count; /* Only used for some kind of messages. */
482 char sender[REDIS_CLUSTER_NAMELEN]; /* Name of the sender node */
483 unsigned char myslots[REDIS_CLUSTER_SLOTS/8];
484 char slaveof[REDIS_CLUSTER_NAMELEN];
485 char configdigest[32];
486 uint16_t port; /* Sender TCP base port */
487 unsigned char state; /* Cluster state from the POV of the sender */
488 unsigned char notused[5]; /* Reserved for future use. For alignment. */
489 union clusterMsgData data;
490 } clusterMsg;
491
492 /*-----------------------------------------------------------------------------
493 * Global server state
494 *----------------------------------------------------------------------------*/
495
496 struct redisServer {
497 /* General */
498 redisDb *db;
499 dict *commands; /* Command table hahs table */
500 aeEventLoop *el;
501 /* Networking */
502 int port;
503 char *bindaddr;
504 char *unixsocket;
505 int ipfd;
506 int sofd;
507 int cfd;
508 list *clients;
509 list *slaves, *monitors;
510 char neterr[ANET_ERR_LEN];
511 /* RDB / AOF loading information */
512 int loading;
513 off_t loading_total_bytes;
514 off_t loading_loaded_bytes;
515 time_t loading_start_time;
516 /* Fast pointers to often looked up command */
517 struct redisCommand *delCommand, *multiCommand;
518 int cronloops; /* number of times the cron function run */
519 time_t lastsave; /* Unix time of last save succeeede */
520 /* Fields used only for stats */
521 time_t stat_starttime; /* server start time */
522 long long stat_numcommands; /* number of processed commands */
523 long long stat_numconnections; /* number of connections received */
524 long long stat_expiredkeys; /* number of expired keys */
525 long long stat_evictedkeys; /* number of evicted keys (maxmemory) */
526 long long stat_keyspace_hits; /* number of successful lookups of keys */
527 long long stat_keyspace_misses; /* number of failed lookups of keys */
528 size_t stat_peak_memory; /* max used memory record */
529 long long stat_fork_time; /* time needed to perform latets fork() */
530 list *slowlog;
531 long long slowlog_entry_id;
532 long long slowlog_log_slower_than;
533 unsigned long slowlog_max_len;
534 /* Configuration */
535 int verbosity;
536 int maxidletime;
537 int dbnum;
538 int daemonize;
539 int appendonly;
540 int appendfsync;
541 int no_appendfsync_on_rewrite;
542 int auto_aofrewrite_perc; /* Rewrite AOF if % growth is > M and... */
543 off_t auto_aofrewrite_min_size; /* the AOF file is at least N bytes. */
544 off_t auto_aofrewrite_base_size;/* AOF size on latest startup or rewrite. */
545 off_t appendonly_current_size; /* AOF current size. */
546 int aofrewrite_scheduled; /* Rewrite once BGSAVE terminates. */
547 int shutdown_asap;
548 int activerehashing;
549 char *requirepass;
550 /* Persistence */
551 long long dirty; /* changes to DB from the last save */
552 long long dirty_before_bgsave; /* used to restore dirty on failed BGSAVE */
553 time_t lastfsync;
554 int appendfd;
555 int appendseldb;
556 time_t aof_flush_postponed_start;
557 char *pidfile;
558 pid_t bgsavechildpid;
559 pid_t bgrewritechildpid;
560 sds bgrewritebuf; /* buffer taken by parent during oppend only rewrite */
561 sds aofbuf; /* AOF buffer, written before entering the event loop */
562 struct saveparam *saveparams;
563 int saveparamslen;
564 char *dbfilename;
565 int rdbcompression;
566 char *appendfilename;
567 /* Logging */
568 char *logfile;
569 int syslog_enabled;
570 char *syslog_ident;
571 int syslog_facility;
572 /* Replication related */
573 int isslave;
574 /* Slave specific fields */
575 char *masterauth;
576 char *masterhost;
577 int masterport;
578 redisClient *master; /* client that is master for this slave */
579 int repl_syncio_timeout; /* timeout for synchronous I/O calls */
580 int replstate; /* replication status if the instance is a slave */
581 off_t repl_transfer_left; /* bytes left reading .rdb */
582 int repl_transfer_s; /* slave -> master SYNC socket */
583 int repl_transfer_fd; /* slave -> master SYNC temp file descriptor */
584 char *repl_transfer_tmpfile; /* slave-> master SYNC temp file name */
585 time_t repl_transfer_lastio; /* unix time of the latest read, for timeout */
586 int repl_serve_stale_data; /* Serve stale data when link is down? */
587 time_t repl_down_since; /* unix time at which link with master went down */
588 /* Limits */
589 unsigned int maxclients;
590 unsigned long long maxmemory;
591 int maxmemory_policy;
592 int maxmemory_samples;
593 /* Blocked clients */
594 unsigned int bpop_blocked_clients;
595 list *unblocked_clients; /* list of clients to unblock before next loop */
596 /* Sort parameters - qsort_r() is only available under BSD so we
597 * have to take this state global, in order to pass it to sortCompare() */
598 int sort_desc;
599 int sort_alpha;
600 int sort_bypattern;
601 /* Zip structure config */
602 size_t hash_max_zipmap_entries;
603 size_t hash_max_zipmap_value;
604 size_t list_max_ziplist_entries;
605 size_t list_max_ziplist_value;
606 size_t set_max_intset_entries;
607 size_t zset_max_ziplist_entries;
608 size_t zset_max_ziplist_value;
609 time_t unixtime; /* Unix time sampled every second. */
610 /* Pubsub */
611 dict *pubsub_channels; /* Map channels to list of subscribed clients */
612 list *pubsub_patterns; /* A list of pubsub_patterns */
613 /* Misc */
614 unsigned lruclock:22; /* clock incrementing every minute, for LRU */
615 unsigned lruclock_padding:10;
616 /* Cluster */
617 int cluster_enabled;
618 clusterState cluster;
619 /* Scripting */
620 lua_State *lua; /* The Lua interpreter. We use just one for all clients */
621 redisClient *lua_client; /* The "fake client" to query Redis from Lua */
622 dict *lua_scripts; /* A dictionary of SHA1 -> Lua scripts */
623 long long lua_time_limit;
624 long long lua_time_start;
625 };
626
627 typedef struct pubsubPattern {
628 redisClient *client;
629 robj *pattern;
630 } pubsubPattern;
631
632 typedef void redisCommandProc(redisClient *c);
633 typedef int *redisGetKeysProc(struct redisCommand *cmd, robj **argv, int argc, int *numkeys, int flags);
634 struct redisCommand {
635 char *name;
636 redisCommandProc *proc;
637 int arity;
638 int flags;
639 /* Use a function to determine keys arguments in a command line.
640 * Used for Redis Cluster redirect. */
641 redisGetKeysProc *getkeys_proc;
642 /* What keys should be loaded in background when calling this command? */
643 int firstkey; /* The first argument that's a key (0 = no keys) */
644 int lastkey; /* THe last argument that's a key */
645 int keystep; /* The step between first and last key */
646 long long microseconds, calls;
647 };
648
649 struct redisFunctionSym {
650 char *name;
651 unsigned long pointer;
652 };
653
654 typedef struct _redisSortObject {
655 robj *obj;
656 union {
657 double score;
658 robj *cmpobj;
659 } u;
660 } redisSortObject;
661
662 typedef struct _redisSortOperation {
663 int type;
664 robj *pattern;
665 } redisSortOperation;
666
667 /* Structure to hold list iteration abstraction. */
668 typedef struct {
669 robj *subject;
670 unsigned char encoding;
671 unsigned char direction; /* Iteration direction */
672 unsigned char *zi;
673 listNode *ln;
674 } listTypeIterator;
675
676 /* Structure for an entry while iterating over a list. */
677 typedef struct {
678 listTypeIterator *li;
679 unsigned char *zi; /* Entry in ziplist */
680 listNode *ln; /* Entry in linked list */
681 } listTypeEntry;
682
683 /* Structure to hold set iteration abstraction. */
684 typedef struct {
685 robj *subject;
686 int encoding;
687 int ii; /* intset iterator */
688 dictIterator *di;
689 } setTypeIterator;
690
691 /* Structure to hold hash iteration abstration. Note that iteration over
692 * hashes involves both fields and values. Because it is possible that
693 * not both are required, store pointers in the iterator to avoid
694 * unnecessary memory allocation for fields/values. */
695 typedef struct {
696 int encoding;
697 unsigned char *zi;
698 unsigned char *zk, *zv;
699 unsigned int zklen, zvlen;
700
701 dictIterator *di;
702 dictEntry *de;
703 } hashTypeIterator;
704
705 #define REDIS_HASH_KEY 1
706 #define REDIS_HASH_VALUE 2
707
708 /*-----------------------------------------------------------------------------
709 * Extern declarations
710 *----------------------------------------------------------------------------*/
711
712 extern struct redisServer server;
713 extern struct sharedObjectsStruct shared;
714 extern dictType setDictType;
715 extern dictType zsetDictType;
716 extern dictType clusterNodesDictType;
717 extern dictType dbDictType;
718 extern double R_Zero, R_PosInf, R_NegInf, R_Nan;
719 dictType hashDictType;
720
721 /*-----------------------------------------------------------------------------
722 * Functions prototypes
723 *----------------------------------------------------------------------------*/
724
725 /* Utils */
726 long long ustime(void);
727
728 /* networking.c -- Networking and Client related operations */
729 redisClient *createClient(int fd);
730 void closeTimedoutClients(void);
731 void freeClient(redisClient *c);
732 void resetClient(redisClient *c);
733 void sendReplyToClient(aeEventLoop *el, int fd, void *privdata, int mask);
734 void addReply(redisClient *c, robj *obj);
735 void *addDeferredMultiBulkLength(redisClient *c);
736 void setDeferredMultiBulkLength(redisClient *c, void *node, long length);
737 void addReplySds(redisClient *c, sds s);
738 void processInputBuffer(redisClient *c);
739 void acceptTcpHandler(aeEventLoop *el, int fd, void *privdata, int mask);
740 void acceptUnixHandler(aeEventLoop *el, int fd, void *privdata, int mask);
741 void readQueryFromClient(aeEventLoop *el, int fd, void *privdata, int mask);
742 void addReplyBulk(redisClient *c, robj *obj);
743 void addReplyBulkCString(redisClient *c, char *s);
744 void addReplyBulkCBuffer(redisClient *c, void *p, size_t len);
745 void addReplyBulkLongLong(redisClient *c, long long ll);
746 void acceptHandler(aeEventLoop *el, int fd, void *privdata, int mask);
747 void addReply(redisClient *c, robj *obj);
748 void addReplySds(redisClient *c, sds s);
749 void addReplyError(redisClient *c, char *err);
750 void addReplyStatus(redisClient *c, char *status);
751 void addReplyDouble(redisClient *c, double d);
752 void addReplyLongLong(redisClient *c, long long ll);
753 void addReplyMultiBulkLen(redisClient *c, long length);
754 void *dupClientReplyValue(void *o);
755 void getClientsMaxBuffers(unsigned long *longest_output_list,
756 unsigned long *biggest_input_buffer);
757 void rewriteClientCommandVector(redisClient *c, int argc, ...);
758 void rewriteClientCommandArgument(redisClient *c, int i, robj *newval);
759
760 #ifdef __GNUC__
761 void addReplyErrorFormat(redisClient *c, const char *fmt, ...)
762 __attribute__((format(printf, 2, 3)));
763 void addReplyStatusFormat(redisClient *c, const char *fmt, ...)
764 __attribute__((format(printf, 2, 3)));
765 #else
766 void addReplyErrorFormat(redisClient *c, const char *fmt, ...);
767 void addReplyStatusFormat(redisClient *c, const char *fmt, ...);
768 #endif
769
770 /* List data type */
771 void listTypeTryConversion(robj *subject, robj *value);
772 void listTypePush(robj *subject, robj *value, int where);
773 robj *listTypePop(robj *subject, int where);
774 unsigned long listTypeLength(robj *subject);
775 listTypeIterator *listTypeInitIterator(robj *subject, int index, unsigned char direction);
776 void listTypeReleaseIterator(listTypeIterator *li);
777 int listTypeNext(listTypeIterator *li, listTypeEntry *entry);
778 robj *listTypeGet(listTypeEntry *entry);
779 void listTypeInsert(listTypeEntry *entry, robj *value, int where);
780 int listTypeEqual(listTypeEntry *entry, robj *o);
781 void listTypeDelete(listTypeEntry *entry);
782 void listTypeConvert(robj *subject, int enc);
783 void unblockClientWaitingData(redisClient *c);
784 int handleClientsWaitingListPush(redisClient *c, robj *key, robj *ele);
785 void popGenericCommand(redisClient *c, int where);
786
787 /* MULTI/EXEC/WATCH... */
788 void unwatchAllKeys(redisClient *c);
789 void initClientMultiState(redisClient *c);
790 void freeClientMultiState(redisClient *c);
791 void queueMultiCommand(redisClient *c);
792 void touchWatchedKey(redisDb *db, robj *key);
793 void touchWatchedKeysOnFlush(int dbid);
794
795 /* Redis object implementation */
796 void decrRefCount(void *o);
797 void incrRefCount(robj *o);
798 robj *resetRefCount(robj *obj);
799 void freeStringObject(robj *o);
800 void freeListObject(robj *o);
801 void freeSetObject(robj *o);
802 void freeZsetObject(robj *o);
803 void freeHashObject(robj *o);
804 robj *createObject(int type, void *ptr);
805 robj *createStringObject(char *ptr, size_t len);
806 robj *dupStringObject(robj *o);
807 int isObjectRepresentableAsLongLong(robj *o, long long *llongval);
808 robj *tryObjectEncoding(robj *o);
809 robj *getDecodedObject(robj *o);
810 size_t stringObjectLen(robj *o);
811 robj *createStringObjectFromLongLong(long long value);
812 robj *createListObject(void);
813 robj *createZiplistObject(void);
814 robj *createSetObject(void);
815 robj *createIntsetObject(void);
816 robj *createHashObject(void);
817 robj *createZsetObject(void);
818 robj *createZsetZiplistObject(void);
819 int getLongFromObjectOrReply(redisClient *c, robj *o, long *target, const char *msg);
820 int checkType(redisClient *c, robj *o, int type);
821 int getLongLongFromObjectOrReply(redisClient *c, robj *o, long long *target, const char *msg);
822 int getDoubleFromObjectOrReply(redisClient *c, robj *o, double *target, const char *msg);
823 int getLongLongFromObject(robj *o, long long *target);
824 char *strEncoding(int encoding);
825 int compareStringObjects(robj *a, robj *b);
826 int equalStringObjects(robj *a, robj *b);
827 unsigned long estimateObjectIdleTime(robj *o);
828
829 /* Synchronous I/O with timeout */
830 int syncWrite(int fd, char *ptr, ssize_t size, int timeout);
831 int syncRead(int fd, char *ptr, ssize_t size, int timeout);
832 int syncReadLine(int fd, char *ptr, ssize_t size, int timeout);
833
834 /* Replication */
835 void replicationFeedSlaves(list *slaves, int dictid, robj **argv, int argc);
836 void replicationFeedMonitors(list *monitors, int dictid, robj **argv, int argc);
837 void updateSlavesWaitingBgsave(int bgsaveerr);
838 void replicationCron(void);
839
840 /* Generic persistence functions */
841 void startLoading(FILE *fp);
842 void loadingProgress(off_t pos);
843 void stopLoading(void);
844
845 /* RDB persistence */
846 #include "rdb.h"
847
848 /* AOF persistence */
849 void flushAppendOnlyFile(int force);
850 void feedAppendOnlyFile(struct redisCommand *cmd, int dictid, robj **argv, int argc);
851 void aofRemoveTempFile(pid_t childpid);
852 int rewriteAppendOnlyFileBackground(void);
853 int loadAppendOnlyFile(char *filename);
854 void stopAppendOnly(void);
855 int startAppendOnly(void);
856 void backgroundRewriteDoneHandler(int exitcode, int bysignal);
857
858 /* Sorted sets data type */
859
860 /* Struct to hold a inclusive/exclusive range spec. */
861 typedef struct {
862 double min, max;
863 int minex, maxex; /* are min or max exclusive? */
864 } zrangespec;
865
866 zskiplist *zslCreate(void);
867 void zslFree(zskiplist *zsl);
868 zskiplistNode *zslInsert(zskiplist *zsl, double score, robj *obj);
869 unsigned char *zzlInsert(unsigned char *zl, robj *ele, double score);
870 int zslDelete(zskiplist *zsl, double score, robj *obj);
871 zskiplistNode *zslFirstInRange(zskiplist *zsl, zrangespec range);
872 double zzlGetScore(unsigned char *sptr);
873 void zzlNext(unsigned char *zl, unsigned char **eptr, unsigned char **sptr);
874 void zzlPrev(unsigned char *zl, unsigned char **eptr, unsigned char **sptr);
875 unsigned int zsetLength(robj *zobj);
876 void zsetConvert(robj *zobj, int encoding);
877
878 /* Core functions */
879 void freeMemoryIfNeeded(void);
880 int processCommand(redisClient *c);
881 void setupSignalHandlers(void);
882 struct redisCommand *lookupCommand(sds name);
883 struct redisCommand *lookupCommandByCString(char *s);
884 void call(redisClient *c);
885 int prepareForShutdown();
886 void redisLog(int level, const char *fmt, ...);
887 void redisLogRaw(int level, const char *msg);
888 void usage();
889 void updateDictResizePolicy(void);
890 int htNeedsResize(dict *dict);
891 void oom(const char *msg);
892 void populateCommandTable(void);
893 void resetCommandTableStats(void);
894
895 /* Set data type */
896 robj *setTypeCreate(robj *value);
897 int setTypeAdd(robj *subject, robj *value);
898 int setTypeRemove(robj *subject, robj *value);
899 int setTypeIsMember(robj *subject, robj *value);
900 setTypeIterator *setTypeInitIterator(robj *subject);
901 void setTypeReleaseIterator(setTypeIterator *si);
902 int setTypeNext(setTypeIterator *si, robj **objele, int64_t *llele);
903 robj *setTypeNextObject(setTypeIterator *si);
904 int setTypeRandomElement(robj *setobj, robj **objele, int64_t *llele);
905 unsigned long setTypeSize(robj *subject);
906 void setTypeConvert(robj *subject, int enc);
907
908 /* Hash data type */
909 void convertToRealHash(robj *o);
910 void hashTypeTryConversion(robj *subject, robj **argv, int start, int end);
911 void hashTypeTryObjectEncoding(robj *subject, robj **o1, robj **o2);
912 int hashTypeGet(robj *o, robj *key, robj **objval, unsigned char **v, unsigned int *vlen);
913 robj *hashTypeGetObject(robj *o, robj *key);
914 int hashTypeExists(robj *o, robj *key);
915 int hashTypeSet(robj *o, robj *key, robj *value);
916 int hashTypeDelete(robj *o, robj *key);
917 unsigned long hashTypeLength(robj *o);
918 hashTypeIterator *hashTypeInitIterator(robj *subject);
919 void hashTypeReleaseIterator(hashTypeIterator *hi);
920 int hashTypeNext(hashTypeIterator *hi);
921 int hashTypeCurrent(hashTypeIterator *hi, int what, robj **objval, unsigned char **v, unsigned int *vlen);
922 robj *hashTypeCurrentObject(hashTypeIterator *hi, int what);
923 robj *hashTypeLookupWriteOrCreate(redisClient *c, robj *key);
924
925 /* Pub / Sub */
926 int pubsubUnsubscribeAllChannels(redisClient *c, int notify);
927 int pubsubUnsubscribeAllPatterns(redisClient *c, int notify);
928 void freePubsubPattern(void *p);
929 int listMatchPubsubPattern(void *a, void *b);
930
931 /* Configuration */
932 void loadServerConfig(char *filename);
933 void appendServerSaveParams(time_t seconds, int changes);
934 void resetServerSaveParams();
935
936 /* db.c -- Keyspace access API */
937 int removeExpire(redisDb *db, robj *key);
938 void propagateExpire(redisDb *db, robj *key);
939 int expireIfNeeded(redisDb *db, robj *key);
940 time_t getExpire(redisDb *db, robj *key);
941 void setExpire(redisDb *db, robj *key, time_t when);
942 robj *lookupKey(redisDb *db, robj *key);
943 robj *lookupKeyRead(redisDb *db, robj *key);
944 robj *lookupKeyWrite(redisDb *db, robj *key);
945 robj *lookupKeyReadOrReply(redisClient *c, robj *key, robj *reply);
946 robj *lookupKeyWriteOrReply(redisClient *c, robj *key, robj *reply);
947 void dbAdd(redisDb *db, robj *key, robj *val);
948 void dbOverwrite(redisDb *db, robj *key, robj *val);
949 void setKey(redisDb *db, robj *key, robj *val);
950 int dbExists(redisDb *db, robj *key);
951 robj *dbRandomKey(redisDb *db);
952 int dbDelete(redisDb *db, robj *key);
953 long long emptyDb();
954 int selectDb(redisClient *c, int id);
955 void signalModifiedKey(redisDb *db, robj *key);
956 void signalFlushedDb(int dbid);
957 unsigned int GetKeysInSlot(unsigned int hashslot, robj **keys, unsigned int count);
958
959 /* API to get key arguments from commands */
960 #define REDIS_GETKEYS_ALL 0
961 #define REDIS_GETKEYS_PRELOAD 1
962 int *getKeysFromCommand(struct redisCommand *cmd, robj **argv, int argc, int *numkeys, int flags);
963 void getKeysFreeResult(int *result);
964 int *noPreloadGetKeys(struct redisCommand *cmd,robj **argv, int argc, int *numkeys, int flags);
965 int *renameGetKeys(struct redisCommand *cmd,robj **argv, int argc, int *numkeys, int flags);
966 int *zunionInterGetKeys(struct redisCommand *cmd,robj **argv, int argc, int *numkeys, int flags);
967
968 /* Cluster */
969 void clusterInit(void);
970 unsigned short crc16(const char *buf, int len);
971 unsigned int keyHashSlot(char *key, int keylen);
972 clusterNode *createClusterNode(char *nodename, int flags);
973 int clusterAddNode(clusterNode *node);
974 void clusterCron(void);
975 clusterNode *getNodeByQuery(redisClient *c, struct redisCommand *cmd, robj **argv, int argc, int *hashslot, int *ask);
976
977 /* Scripting */
978 void scriptingInit(void);
979
980 /* Git SHA1 */
981 char *redisGitSHA1(void);
982 char *redisGitDirty(void);
983
984 /* Commands prototypes */
985 void authCommand(redisClient *c);
986 void pingCommand(redisClient *c);
987 void echoCommand(redisClient *c);
988 void setCommand(redisClient *c);
989 void setnxCommand(redisClient *c);
990 void setexCommand(redisClient *c);
991 void getCommand(redisClient *c);
992 void delCommand(redisClient *c);
993 void existsCommand(redisClient *c);
994 void setbitCommand(redisClient *c);
995 void getbitCommand(redisClient *c);
996 void setrangeCommand(redisClient *c);
997 void getrangeCommand(redisClient *c);
998 void incrCommand(redisClient *c);
999 void decrCommand(redisClient *c);
1000 void incrbyCommand(redisClient *c);
1001 void decrbyCommand(redisClient *c);
1002 void selectCommand(redisClient *c);
1003 void randomkeyCommand(redisClient *c);
1004 void keysCommand(redisClient *c);
1005 void dbsizeCommand(redisClient *c);
1006 void lastsaveCommand(redisClient *c);
1007 void saveCommand(redisClient *c);
1008 void bgsaveCommand(redisClient *c);
1009 void bgrewriteaofCommand(redisClient *c);
1010 void shutdownCommand(redisClient *c);
1011 void moveCommand(redisClient *c);
1012 void renameCommand(redisClient *c);
1013 void renamenxCommand(redisClient *c);
1014 void lpushCommand(redisClient *c);
1015 void rpushCommand(redisClient *c);
1016 void lpushxCommand(redisClient *c);
1017 void rpushxCommand(redisClient *c);
1018 void linsertCommand(redisClient *c);
1019 void lpopCommand(redisClient *c);
1020 void rpopCommand(redisClient *c);
1021 void llenCommand(redisClient *c);
1022 void lindexCommand(redisClient *c);
1023 void lrangeCommand(redisClient *c);
1024 void ltrimCommand(redisClient *c);
1025 void typeCommand(redisClient *c);
1026 void lsetCommand(redisClient *c);
1027 void saddCommand(redisClient *c);
1028 void sremCommand(redisClient *c);
1029 void smoveCommand(redisClient *c);
1030 void sismemberCommand(redisClient *c);
1031 void scardCommand(redisClient *c);
1032 void spopCommand(redisClient *c);
1033 void srandmemberCommand(redisClient *c);
1034 void sinterCommand(redisClient *c);
1035 void sinterstoreCommand(redisClient *c);
1036 void sunionCommand(redisClient *c);
1037 void sunionstoreCommand(redisClient *c);
1038 void sdiffCommand(redisClient *c);
1039 void sdiffstoreCommand(redisClient *c);
1040 void syncCommand(redisClient *c);
1041 void flushdbCommand(redisClient *c);
1042 void flushallCommand(redisClient *c);
1043 void sortCommand(redisClient *c);
1044 void lremCommand(redisClient *c);
1045 void rpoplpushCommand(redisClient *c);
1046 void infoCommand(redisClient *c);
1047 void mgetCommand(redisClient *c);
1048 void monitorCommand(redisClient *c);
1049 void expireCommand(redisClient *c);
1050 void expireatCommand(redisClient *c);
1051 void getsetCommand(redisClient *c);
1052 void ttlCommand(redisClient *c);
1053 void persistCommand(redisClient *c);
1054 void slaveofCommand(redisClient *c);
1055 void debugCommand(redisClient *c);
1056 void msetCommand(redisClient *c);
1057 void msetnxCommand(redisClient *c);
1058 void zaddCommand(redisClient *c);
1059 void zincrbyCommand(redisClient *c);
1060 void zrangeCommand(redisClient *c);
1061 void zrangebyscoreCommand(redisClient *c);
1062 void zrevrangebyscoreCommand(redisClient *c);
1063 void zcountCommand(redisClient *c);
1064 void zrevrangeCommand(redisClient *c);
1065 void zcardCommand(redisClient *c);
1066 void zremCommand(redisClient *c);
1067 void zscoreCommand(redisClient *c);
1068 void zremrangebyscoreCommand(redisClient *c);
1069 void multiCommand(redisClient *c);
1070 void execCommand(redisClient *c);
1071 void discardCommand(redisClient *c);
1072 void blpopCommand(redisClient *c);
1073 void brpopCommand(redisClient *c);
1074 void brpoplpushCommand(redisClient *c);
1075 void appendCommand(redisClient *c);
1076 void strlenCommand(redisClient *c);
1077 void zrankCommand(redisClient *c);
1078 void zrevrankCommand(redisClient *c);
1079 void hsetCommand(redisClient *c);
1080 void hsetnxCommand(redisClient *c);
1081 void hgetCommand(redisClient *c);
1082 void hmsetCommand(redisClient *c);
1083 void hmgetCommand(redisClient *c);
1084 void hdelCommand(redisClient *c);
1085 void hlenCommand(redisClient *c);
1086 void zremrangebyrankCommand(redisClient *c);
1087 void zunionstoreCommand(redisClient *c);
1088 void zinterstoreCommand(redisClient *c);
1089 void hkeysCommand(redisClient *c);
1090 void hvalsCommand(redisClient *c);
1091 void hgetallCommand(redisClient *c);
1092 void hexistsCommand(redisClient *c);
1093 void configCommand(redisClient *c);
1094 void hincrbyCommand(redisClient *c);
1095 void subscribeCommand(redisClient *c);
1096 void unsubscribeCommand(redisClient *c);
1097 void psubscribeCommand(redisClient *c);
1098 void punsubscribeCommand(redisClient *c);
1099 void publishCommand(redisClient *c);
1100 void watchCommand(redisClient *c);
1101 void unwatchCommand(redisClient *c);
1102 void clusterCommand(redisClient *c);
1103 void restoreCommand(redisClient *c);
1104 void migrateCommand(redisClient *c);
1105 void dumpCommand(redisClient *c);
1106 void objectCommand(redisClient *c);
1107 void clientCommand(redisClient *c);
1108 void evalCommand(redisClient *c);
1109 void evalShaCommand(redisClient *c);
1110
1111 #if defined(__GNUC__)
1112 void *calloc(size_t count, size_t size) __attribute__ ((deprecated));
1113 void free(void *ptr) __attribute__ ((deprecated));
1114 void *malloc(size_t size) __attribute__ ((deprecated));
1115 void *realloc(void *ptr, size_t size) __attribute__ ((deprecated));
1116 #endif
1117
1118 #endif
Redis += OpenLDAP MDB