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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
23 #include "ae.h" /* Event driven programming library */
24 #include "sds.h" /* Dynamic safe strings */
25 #include "dict.h" /* Hash tables */
26 #include "adlist.h" /* Linked lists */
27 #include "zmalloc.h" /* total memory usage aware version of malloc/free */
28 #include "anet.h" /* Networking the easy way */
29 #include "zipmap.h" /* Compact string -> string data structure */
30 #include "ziplist.h" /* Compact list data structure */
31 #include "intset.h" /* Compact integer set structure */
32 #include "version.h"
33
34 /* Error codes */
35 #define REDIS_OK 0
36 #define REDIS_ERR -1
37
38 /* Static server configuration */
39 #define REDIS_SERVERPORT 6379 /* TCP port */
40 #define REDIS_MAXIDLETIME (60*5) /* default client timeout */
41 #define REDIS_IOBUF_LEN 1024
42 #define REDIS_LOADBUF_LEN 1024
43 #define REDIS_STATIC_ARGS 8
44 #define REDIS_DEFAULT_DBNUM 16
45 #define REDIS_CONFIGLINE_MAX 1024
46 #define REDIS_MAX_SYNC_TIME 60 /* Slave can't take more to sync */
47 #define REDIS_EXPIRELOOKUPS_PER_CRON 10 /* lookup 10 expires per loop */
48 #define REDIS_MAX_WRITE_PER_EVENT (1024*64)
49 #define REDIS_REQUEST_MAX_SIZE (1024*1024*256) /* max bytes in inline command */
50 #define REDIS_SHARED_INTEGERS 10000
51 #define REDIS_REPLY_CHUNK_BYTES (5*1500) /* 5 TCP packets with default MTU */
52 #define REDIS_MAX_LOGMSG_LEN 1024 /* Default maximum length of syslog messages */
53
54 /* Hash table parameters */
55 #define REDIS_HT_MINFILL 10 /* Minimal hash table fill 10% */
56
57 /* Command flags:
58 * REDIS_CMD_DENYOOM:
59 * Commands marked with this flag will return an error when 'maxmemory' is
60 * set and the server is using more than 'maxmemory' bytes of memory.
61 * In short: commands with this flag are denied on low memory conditions.
62 * REDIS_CMD_FORCE_REPLICATION:
63 * Force replication even if dirty is 0. */
64 #define REDIS_CMD_DENYOOM 4
65 #define REDIS_CMD_FORCE_REPLICATION 8
66
67 /* Object types */
68 #define REDIS_STRING 0
69 #define REDIS_LIST 1
70 #define REDIS_SET 2
71 #define REDIS_ZSET 3
72 #define REDIS_HASH 4
73 #define REDIS_VMPOINTER 8
74 /* Object types only used for persistence in .rdb files */
75 #define REDIS_HASH_ZIPMAP 9
76 #define REDIS_LIST_ZIPLIST 10
77 #define REDIS_SET_INTSET 11
78
79 /* Objects encoding. Some kind of objects like Strings and Hashes can be
80 * internally represented in multiple ways. The 'encoding' field of the object
81 * is set to one of this fields for this object. */
82 #define REDIS_ENCODING_RAW 0 /* Raw representation */
83 #define REDIS_ENCODING_INT 1 /* Encoded as integer */
84 #define REDIS_ENCODING_HT 2 /* Encoded as hash table */
85 #define REDIS_ENCODING_ZIPMAP 3 /* Encoded as zipmap */
86 #define REDIS_ENCODING_LINKEDLIST 4 /* Encoded as regular linked list */
87 #define REDIS_ENCODING_ZIPLIST 5 /* Encoded as ziplist */
88 #define REDIS_ENCODING_INTSET 6 /* Encoded as intset */
89
90 /* Object types only used for dumping to disk */
91 #define REDIS_EXPIRETIME 253
92 #define REDIS_SELECTDB 254
93 #define REDIS_EOF 255
94
95 /* Defines related to the dump file format. To store 32 bits lengths for short
96 * keys requires a lot of space, so we check the most significant 2 bits of
97 * the first byte to interpreter the length:
98 *
99 * 00|000000 => if the two MSB are 00 the len is the 6 bits of this byte
100 * 01|000000 00000000 => 01, the len is 14 byes, 6 bits + 8 bits of next byte
101 * 10|000000 [32 bit integer] => if it's 01, a full 32 bit len will follow
102 * 11|000000 this means: specially encoded object will follow. The six bits
103 * number specify the kind of object that follows.
104 * See the REDIS_RDB_ENC_* defines.
105 *
106 * Lenghts up to 63 are stored using a single byte, most DB keys, and may
107 * values, will fit inside. */
108 #define REDIS_RDB_6BITLEN 0
109 #define REDIS_RDB_14BITLEN 1
110 #define REDIS_RDB_32BITLEN 2
111 #define REDIS_RDB_ENCVAL 3
112 #define REDIS_RDB_LENERR UINT_MAX
113
114 /* When a length of a string object stored on disk has the first two bits
115 * set, the remaining two bits specify a special encoding for the object
116 * accordingly to the following defines: */
117 #define REDIS_RDB_ENC_INT8 0 /* 8 bit signed integer */
118 #define REDIS_RDB_ENC_INT16 1 /* 16 bit signed integer */
119 #define REDIS_RDB_ENC_INT32 2 /* 32 bit signed integer */
120 #define REDIS_RDB_ENC_LZF 3 /* string compressed with FASTLZ */
121
122 /* Scheduled IO opeations flags. */
123 #define REDIS_IO_LOAD 1
124 #define REDIS_IO_SAVE 2
125 #define REDIS_IO_LOADINPROG 4
126 #define REDIS_IO_SAVEINPROG 8
127
128 /* Generic IO flags */
129 #define REDIS_IO_ONLYLOADS 1
130 #define REDIS_IO_ASAP 2
131
132 #define REDIS_MAX_COMPLETED_JOBS_PROCESSED 1
133 #define REDIS_THREAD_STACK_SIZE (1024*1024*4)
134
135 /* Client flags */
136 #define REDIS_SLAVE 1 /* This client is a slave server */
137 #define REDIS_MASTER 2 /* This client is a master server */
138 #define REDIS_MONITOR 4 /* This client is a slave monitor, see MONITOR */
139 #define REDIS_MULTI 8 /* This client is in a MULTI context */
140 #define REDIS_BLOCKED 16 /* The client is waiting in a blocking operation */
141 #define REDIS_IO_WAIT 32 /* The client is waiting for Virtual Memory I/O */
142 #define REDIS_DIRTY_CAS 64 /* Watched keys modified. EXEC will fail. */
143 #define REDIS_CLOSE_AFTER_REPLY 128 /* Close after writing entire reply. */
144 #define REDIS_UNBLOCKED 256 /* This client was unblocked and is stored in
145 server.unblocked_clients */
146
147 /* Client request types */
148 #define REDIS_REQ_INLINE 1
149 #define REDIS_REQ_MULTIBULK 2
150
151 /* Slave replication state - slave side */
152 #define REDIS_REPL_NONE 0 /* No active replication */
153 #define REDIS_REPL_CONNECT 1 /* Must connect to master */
154 #define REDIS_REPL_TRANSFER 2 /* Receiving .rdb from master */
155 #define REDIS_REPL_CONNECTED 3 /* Connected to master */
156
157 /* Slave replication state - from the point of view of master
158 * Note that in SEND_BULK and ONLINE state the slave receives new updates
159 * in its output queue. In the WAIT_BGSAVE state instead the server is waiting
160 * to start the next background saving in order to send updates to it. */
161 #define REDIS_REPL_WAIT_BGSAVE_START 3 /* master waits bgsave to start feeding it */
162 #define REDIS_REPL_WAIT_BGSAVE_END 4 /* master waits bgsave to start bulk DB transmission */
163 #define REDIS_REPL_SEND_BULK 5 /* master is sending the bulk DB */
164 #define REDIS_REPL_ONLINE 6 /* bulk DB already transmitted, receive updates */
165
166 /* List related stuff */
167 #define REDIS_HEAD 0
168 #define REDIS_TAIL 1
169
170 /* Sort operations */
171 #define REDIS_SORT_GET 0
172 #define REDIS_SORT_ASC 1
173 #define REDIS_SORT_DESC 2
174 #define REDIS_SORTKEY_MAX 1024
175
176 /* Log levels */
177 #define REDIS_DEBUG 0
178 #define REDIS_VERBOSE 1
179 #define REDIS_NOTICE 2
180 #define REDIS_WARNING 3
181
182 /* Anti-warning macro... */
183 #define REDIS_NOTUSED(V) ((void) V)
184
185 #define ZSKIPLIST_MAXLEVEL 32 /* Should be enough for 2^32 elements */
186 #define ZSKIPLIST_P 0.25 /* Skiplist P = 1/4 */
187
188 /* Append only defines */
189 #define APPENDFSYNC_NO 0
190 #define APPENDFSYNC_ALWAYS 1
191 #define APPENDFSYNC_EVERYSEC 2
192
193 /* Zip structure related defaults */
194 #define REDIS_HASH_MAX_ZIPMAP_ENTRIES 512
195 #define REDIS_HASH_MAX_ZIPMAP_VALUE 64
196 #define REDIS_LIST_MAX_ZIPLIST_ENTRIES 512
197 #define REDIS_LIST_MAX_ZIPLIST_VALUE 64
198 #define REDIS_SET_MAX_INTSET_ENTRIES 512
199
200 /* Sets operations codes */
201 #define REDIS_OP_UNION 0
202 #define REDIS_OP_DIFF 1
203 #define REDIS_OP_INTER 2
204
205 /* Redis maxmemory strategies */
206 #define REDIS_MAXMEMORY_VOLATILE_LRU 0
207 #define REDIS_MAXMEMORY_VOLATILE_TTL 1
208 #define REDIS_MAXMEMORY_VOLATILE_RANDOM 2
209 #define REDIS_MAXMEMORY_ALLKEYS_LRU 3
210 #define REDIS_MAXMEMORY_ALLKEYS_RANDOM 4
211 #define REDIS_MAXMEMORY_NO_EVICTION 5
212
213 /* Diskstore background saving thread states */
214 #define REDIS_BGSAVE_THREAD_UNACTIVE 0
215 #define REDIS_BGSAVE_THREAD_ACTIVE 1
216 #define REDIS_BGSAVE_THREAD_DONE_OK 2
217 #define REDIS_BGSAVE_THREAD_DONE_ERR 3
218
219 /* We can print the stacktrace, so our assert is defined this way: */
220 #define redisAssert(_e) ((_e)?(void)0 : (_redisAssert(#_e,__FILE__,__LINE__),_exit(1)))
221 #define redisPanic(_e) _redisPanic(#_e,__FILE__,__LINE__),_exit(1)
222 void _redisAssert(char *estr, char *file, int line);
223 void _redisPanic(char *msg, char *file, int line);
224
225 /*-----------------------------------------------------------------------------
226 * Data types
227 *----------------------------------------------------------------------------*/
228
229 /* A redis object, that is a type able to hold a string / list / set */
230
231 /* The actual Redis Object */
232 #define REDIS_LRU_CLOCK_MAX ((1<<21)-1) /* Max value of obj->lru */
233 #define REDIS_LRU_CLOCK_RESOLUTION 10 /* LRU clock resolution in seconds */
234 typedef struct redisObject {
235 unsigned type:4;
236 unsigned notused:2; /* Not used */
237 unsigned encoding:4;
238 unsigned lru:22; /* lru time (relative to server.lruclock) */
239 int refcount;
240 void *ptr;
241 /* VM fields are only allocated if VM is active, otherwise the
242 * object allocation function will just allocate
243 * sizeof(redisObjct) minus sizeof(redisObjectVM), so using
244 * Redis without VM active will not have any overhead. */
245 } robj;
246
247 /* The VM pointer structure - identifies an object in the swap file.
248 *
249 * This object is stored in place of the value
250 * object in the main key->value hash table representing a database.
251 * Note that the first fields (type, storage) are the same as the redisObject
252 * structure so that vmPointer strucuters can be accessed even when casted
253 * as redisObject structures.
254 *
255 * This is useful as we don't know if a value object is or not on disk, but we
256 * are always able to read obj->storage to check this. For vmPointer
257 * structures "type" is set to REDIS_VMPOINTER (even if without this field
258 * is still possible to check the kind of object from the value of 'storage').*/
259 typedef struct vmPointer {
260 unsigned type:4;
261 unsigned storage:2; /* REDIS_VM_SWAPPED or REDIS_VM_LOADING */
262 unsigned notused:26;
263 unsigned int vtype; /* type of the object stored in the swap file */
264 off_t page; /* the page at witch the object is stored on disk */
265 off_t usedpages; /* number of pages used on disk */
266 } vmpointer;
267
268 /* Macro used to initalize a Redis object allocated on the stack.
269 * Note that this macro is taken near the structure definition to make sure
270 * we'll update it when the structure is changed, to avoid bugs like
271 * bug #85 introduced exactly in this way. */
272 #define initStaticStringObject(_var,_ptr) do { \
273 _var.refcount = 1; \
274 _var.type = REDIS_STRING; \
275 _var.encoding = REDIS_ENCODING_RAW; \
276 _var.ptr = _ptr; \
277 } while(0);
278
279 typedef struct redisDb {
280 dict *dict; /* The keyspace for this DB */
281 dict *expires; /* Timeout of keys with a timeout set */
282 dict *blocking_keys; /* Keys with clients waiting for data (BLPOP) */
283 dict *io_keys; /* Keys with clients waiting for DS I/O */
284 dict *io_negcache; /* Negative caching for disk store */
285 dict *io_queued; /* Queued IO operations hash table */
286 dict *watched_keys; /* WATCHED keys for MULTI/EXEC CAS */
287 int id;
288 } redisDb;
289
290 /* Client MULTI/EXEC state */
291 typedef struct multiCmd {
292 robj **argv;
293 int argc;
294 struct redisCommand *cmd;
295 } multiCmd;
296
297 typedef struct multiState {
298 multiCmd *commands; /* Array of MULTI commands */
299 int count; /* Total number of MULTI commands */
300 } multiState;
301
302 typedef struct blockingState {
303 robj **keys; /* The key we are waiting to terminate a blocking
304 * operation such as BLPOP. Otherwise NULL. */
305 int count; /* Number of blocking keys */
306 time_t timeout; /* Blocking operation timeout. If UNIX current time
307 * is >= timeout then the operation timed out. */
308 robj *target; /* The key that should receive the element,
309 * for BRPOPLPUSH. */
310 } blockingState;
311
312 /* With multiplexing we need to take per-clinet state.
313 * Clients are taken in a liked list. */
314 typedef struct redisClient {
315 int fd;
316 redisDb *db;
317 int dictid;
318 sds querybuf;
319 int argc;
320 robj **argv;
321 int reqtype;
322 int multibulklen; /* number of multi bulk arguments left to read */
323 long bulklen; /* length of bulk argument in multi bulk request */
324 list *reply;
325 int sentlen;
326 time_t lastinteraction; /* time of the last interaction, used for timeout */
327 int flags; /* REDIS_SLAVE | REDIS_MONITOR | REDIS_MULTI ... */
328 int slaveseldb; /* slave selected db, if this client is a slave */
329 int authenticated; /* when requirepass is non-NULL */
330 int replstate; /* replication state if this is a slave */
331 int repldbfd; /* replication DB file descriptor */
332 long repldboff; /* replication DB file offset */
333 off_t repldbsize; /* replication DB file size */
334 multiState mstate; /* MULTI/EXEC state */
335 blockingState bpop; /* blocking state */
336 list *io_keys; /* Keys this client is waiting to be loaded from the
337 * swap file in order to continue. */
338 list *watched_keys; /* Keys WATCHED for MULTI/EXEC CAS */
339 dict *pubsub_channels; /* channels a client is interested in (SUBSCRIBE) */
340 list *pubsub_patterns; /* patterns a client is interested in (SUBSCRIBE) */
341
342 /* Response buffer */
343 int bufpos;
344 char buf[REDIS_REPLY_CHUNK_BYTES];
345 } redisClient;
346
347 struct saveparam {
348 time_t seconds;
349 int changes;
350 };
351
352 struct sharedObjectsStruct {
353 robj *crlf, *ok, *err, *emptybulk, *czero, *cone, *cnegone, *pong, *space,
354 *colon, *nullbulk, *nullmultibulk, *queued,
355 *emptymultibulk, *wrongtypeerr, *nokeyerr, *syntaxerr, *sameobjecterr,
356 *outofrangeerr, *loadingerr, *plus,
357 *select0, *select1, *select2, *select3, *select4,
358 *select5, *select6, *select7, *select8, *select9,
359 *messagebulk, *pmessagebulk, *subscribebulk, *unsubscribebulk, *mbulk3,
360 *mbulk4, *psubscribebulk, *punsubscribebulk,
361 *integers[REDIS_SHARED_INTEGERS];
362 };
363
364 /*-----------------------------------------------------------------------------
365 * Redis cluster data structures
366 *----------------------------------------------------------------------------*/
367
368 #define REDIS_CLUSTER_SLOTS 4096
369 #define REDIS_CLUSTER_OK 0 /* Everything looks ok */
370 #define REDIS_CLUSTER_FAIL 1 /* The cluster can't work */
371 #define REDIS_CLUSTER_NEEDHELP 2 /* The cluster works, but needs some help */
372 #define REDIS_CLUSTER_NAMELEN 40 /* sha1 hex length */
373 #define REDIS_CLUSTER_PORT_INCR 10000 /* Cluster port = baseport + PORT_INCR */
374
375 struct clusterNode;
376
377 /* clusterLink encapsulates everything needed to talk with a remote node. */
378 typedef struct clusterLink {
379 int fd; /* TCP socket file descriptor */
380 sds sndbuf; /* Packet send buffer */
381 sds rcvbuf; /* Packet reception buffer */
382 struct clusterNode *node; /* Node related to this link if any, or NULL */
383 } clusterLink;
384
385 /* Node flags */
386 #define REDIS_NODE_MASTER 1 /* The node is a master */
387 #define REDIS_NODE_SLAVE 2 /* The node is a slave */
388 #define REDIS_NODE_PFAIL 4 /* Failure? Need acknowledge */
389 #define REDIS_NODE_FAIL 8 /* The node is believed to be malfunctioning */
390 #define REDIS_NODE_MYSELF 16 /* This node is myself */
391 #define REDIS_NODE_HANDSHAKE 32 /* We have still to exchange the first ping */
392 #define REDIS_NODE_NOADDR 64 /* We don't know the address of this node */
393 #define REDIS_NODE_MEET 128 /* Send a MEET message to this node */
394 #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"
395
396 struct clusterNode {
397 char name[REDIS_CLUSTER_NAMELEN]; /* Node name, hex string, sha1-size */
398 int flags; /* REDIS_NODE_... */
399 unsigned char slots[REDIS_CLUSTER_SLOTS/8]; /* slots handled by this node */
400 int numslaves; /* Number of slave nodes, if this is a master */
401 struct clusterNode **slaves; /* pointers to slave nodes */
402 struct clusterNode *slaveof; /* pointer to the master node */
403 time_t ping_sent; /* Unix time we sent latest ping */
404 time_t pong_received; /* Unix time we received the pong */
405 char *configdigest; /* Configuration digest of this node */
406 time_t configdigest_ts; /* Configuration digest timestamp */
407 char ip[16]; /* Latest known IP address of this node */
408 int port; /* Latest known port of this node */
409 clusterLink *link; /* TCP/IP link with this node */
410 };
411 typedef struct clusterNode clusterNode;
412
413 typedef struct {
414 char *configfile;
415 clusterNode *myself; /* This node */
416 int state; /* REDIS_CLUSTER_OK, REDIS_CLUSTER_FAIL, ... */
417 int node_timeout;
418 dict *nodes; /* Hash table of name -> clusterNode structures */
419 clusterNode *migrating_slots_to[REDIS_CLUSTER_SLOTS];
420 clusterNode *importing_slots_from[REDIS_CLUSTER_SLOTS];
421 clusterNode *slots[REDIS_CLUSTER_SLOTS];
422 } clusterState;
423
424 /* Redis cluster messages header */
425
426 /* Note that the PING, PONG and MEET messages are actually the same exact
427 * kind of packet. PONG is the reply to ping, in the extact format as a PING,
428 * while MEET is a special PING that forces the receiver to add the sender
429 * as a node (if it is not already in the list). */
430 #define CLUSTERMSG_TYPE_PING 0 /* Ping */
431 #define CLUSTERMSG_TYPE_PONG 1 /* Pong (reply to Ping) */
432 #define CLUSTERMSG_TYPE_MEET 2 /* Meet "let's join" message */
433 #define CLUSTERMSG_TYPE_FAIL 3 /* Mark node xxx as failing */
434
435 /* Initially we don't know our "name", but we'll find it once we connect
436 * to the first node, using the getsockname() function. Then we'll use this
437 * address for all the next messages. */
438 typedef struct {
439 char nodename[REDIS_CLUSTER_NAMELEN];
440 uint32_t ping_sent;
441 uint32_t pong_received;
442 char ip[16]; /* IP address last time it was seen */
443 uint16_t port; /* port last time it was seen */
444 uint16_t flags;
445 uint32_t notused; /* for 64 bit alignment */
446 } clusterMsgDataGossip;
447
448 typedef struct {
449 char nodename[REDIS_CLUSTER_NAMELEN];
450 } clusterMsgDataFail;
451
452 union clusterMsgData {
453 /* PING, MEET and PONG */
454 struct {
455 /* Array of N clusterMsgDataGossip structures */
456 clusterMsgDataGossip gossip[1];
457 } ping;
458 /* FAIL */
459 struct {
460 clusterMsgDataFail about;
461 } fail;
462 };
463
464 typedef struct {
465 uint32_t totlen; /* Total length of this message */
466 uint16_t type; /* Message type */
467 uint16_t count; /* Only used for some kind of messages. */
468 char sender[REDIS_CLUSTER_NAMELEN]; /* Name of the sender node */
469 unsigned char myslots[REDIS_CLUSTER_SLOTS/8];
470 char slaveof[REDIS_CLUSTER_NAMELEN];
471 char configdigest[32];
472 uint16_t port; /* Sender TCP base port */
473 unsigned char state; /* Cluster state from the POV of the sender */
474 unsigned char notused[5]; /* Reserved for future use. For alignment. */
475 union clusterMsgData data;
476 } clusterMsg;
477
478 /*-----------------------------------------------------------------------------
479 * Global server state
480 *----------------------------------------------------------------------------*/
481
482 struct redisServer {
483 /* General */
484 pthread_t mainthread;
485 redisDb *db;
486 dict *commands; /* Command table hahs table */
487 aeEventLoop *el;
488 /* Networking */
489 int port;
490 char *bindaddr;
491 char *unixsocket;
492 int ipfd;
493 int sofd;
494 int cfd;
495 list *clients;
496 list *slaves, *monitors;
497 char neterr[ANET_ERR_LEN];
498 /* RDB / AOF loading information */
499 int loading;
500 off_t loading_total_bytes;
501 off_t loading_loaded_bytes;
502 time_t loading_start_time;
503 /* Fast pointers to often looked up command */
504 struct redisCommand *delCommand, *multiCommand;
505 int cronloops; /* number of times the cron function run */
506 time_t lastsave; /* Unix time of last save succeeede */
507 /* Fields used only for stats */
508 time_t stat_starttime; /* server start time */
509 long long stat_numcommands; /* number of processed commands */
510 long long stat_numconnections; /* number of connections received */
511 long long stat_expiredkeys; /* number of expired keys */
512 long long stat_evictedkeys; /* number of evicted keys (maxmemory) */
513 long long stat_keyspace_hits; /* number of successful lookups of keys */
514 long long stat_keyspace_misses; /* number of failed lookups of keys */
515 /* Configuration */
516 int verbosity;
517 int maxidletime;
518 int dbnum;
519 int daemonize;
520 int appendonly;
521 int appendfsync;
522 int no_appendfsync_on_rewrite;
523 int shutdown_asap;
524 int activerehashing;
525 char *requirepass;
526 /* Persistence */
527 long long dirty; /* changes to DB from the last save */
528 long long dirty_before_bgsave; /* used to restore dirty on failed BGSAVE */
529 time_t lastfsync;
530 int appendfd;
531 int appendseldb;
532 char *pidfile;
533 pid_t bgsavechildpid;
534 pid_t bgrewritechildpid;
535 int bgsavethread_state;
536 pthread_mutex_t bgsavethread_mutex;
537 pthread_t bgsavethread;
538 sds bgrewritebuf; /* buffer taken by parent during oppend only rewrite */
539 sds aofbuf; /* AOF buffer, written before entering the event loop */
540 struct saveparam *saveparams;
541 int saveparamslen;
542 char *dbfilename;
543 int rdbcompression;
544 char *appendfilename;
545 /* Logging */
546 char *logfile;
547 int syslog_enabled;
548 char *syslog_ident;
549 int syslog_facility;
550 /* Replication related */
551 int isslave;
552 /* Slave specific fields */
553 char *masterauth;
554 char *masterhost;
555 int masterport;
556 redisClient *master; /* client that is master for this slave */
557 int replstate; /* replication status if the instance is a slave */
558 off_t repl_transfer_left; /* bytes left reading .rdb */
559 int repl_transfer_s; /* slave -> master SYNC socket */
560 int repl_transfer_fd; /* slave -> master SYNC temp file descriptor */
561 char *repl_transfer_tmpfile; /* slave-> master SYNC temp file name */
562 time_t repl_transfer_lastio; /* unix time of the latest read, for timeout */
563 int repl_serve_stale_data; /* Serve stale data when link is down? */
564 /* Limits */
565 unsigned int maxclients;
566 unsigned long long maxmemory;
567 int maxmemory_policy;
568 int maxmemory_samples;
569 /* Blocked clients */
570 unsigned int bpop_blocked_clients;
571 unsigned int cache_blocked_clients;
572 list *unblocked_clients; /* list of clients to unblock before next loop */
573 list *cache_io_queue; /* IO operations queue */
574 int cache_flush_delay; /* seconds to wait before flushing keys */
575 /* Sort parameters - qsort_r() is only available under BSD so we
576 * have to take this state global, in order to pass it to sortCompare() */
577 int sort_desc;
578 int sort_alpha;
579 int sort_bypattern;
580 /* Virtual memory configuration */
581 int ds_enabled; /* backend disk in redis.conf */
582 char *ds_path; /* location of the disk store on disk */
583 unsigned long long cache_max_memory;
584 /* Zip structure config */
585 size_t hash_max_zipmap_entries;
586 size_t hash_max_zipmap_value;
587 size_t list_max_ziplist_entries;
588 size_t list_max_ziplist_value;
589 size_t set_max_intset_entries;
590 time_t unixtime; /* Unix time sampled every second. */
591 /* Virtual memory I/O threads stuff */
592 /* An I/O thread process an element taken from the io_jobs queue and
593 * put the result of the operation in the io_done list. While the
594 * job is being processed, it's put on io_processing queue. */
595 list *io_newjobs; /* List of VM I/O jobs yet to be processed */
596 list *io_processing; /* List of VM I/O jobs being processed */
597 list *io_processed; /* List of VM I/O jobs already processed */
598 list *io_ready_clients; /* Clients ready to be unblocked. All keys loaded */
599 pthread_mutex_t io_mutex; /* lock to access io_jobs/io_done/io_thread_job */
600 pthread_cond_t io_condvar; /* I/O threads conditional variable */
601 pthread_attr_t io_threads_attr; /* attributes for threads creation */
602 int io_active_threads; /* Number of running I/O threads */
603 int vm_max_threads; /* Max number of I/O threads running at the same time */
604 /* Our main thread is blocked on the event loop, locking for sockets ready
605 * to be read or written, so when a threaded I/O operation is ready to be
606 * processed by the main thread, the I/O thread will use a unix pipe to
607 * awake the main thread. The followings are the two pipe FDs. */
608 int io_ready_pipe_read;
609 int io_ready_pipe_write;
610 /* Virtual memory stats */
611 unsigned long long vm_stats_used_pages;
612 unsigned long long vm_stats_swapped_objects;
613 unsigned long long vm_stats_swapouts;
614 unsigned long long vm_stats_swapins;
615 /* Pubsub */
616 dict *pubsub_channels; /* Map channels to list of subscribed clients */
617 list *pubsub_patterns; /* A list of pubsub_patterns */
618 /* Misc */
619 unsigned lruclock:22; /* clock incrementing every minute, for LRU */
620 unsigned lruclock_padding:10;
621 int cluster_enabled;
622 clusterState cluster;
623 };
624
625 typedef struct pubsubPattern {
626 redisClient *client;
627 robj *pattern;
628 } pubsubPattern;
629
630 typedef void redisCommandProc(redisClient *c);
631 typedef int *redisGetKeysProc(struct redisCommand *cmd, robj **argv, int argc, int *numkeys, int flags);
632 struct redisCommand {
633 char *name;
634 redisCommandProc *proc;
635 int arity;
636 int flags;
637 /* Use a function to determine keys arguments in a command line.
638 * Used both for diskstore preloading and Redis Cluster. */
639 redisGetKeysProc *getkeys_proc;
640 /* What keys should be loaded in background when calling this command? */
641 int firstkey; /* The first argument that's a key (0 = no keys) */
642 int lastkey; /* THe last argument that's a key */
643 int keystep; /* The step between first and last key */
644 long long microseconds, calls;
645 };
646
647 struct redisFunctionSym {
648 char *name;
649 unsigned long pointer;
650 };
651
652 typedef struct _redisSortObject {
653 robj *obj;
654 union {
655 double score;
656 robj *cmpobj;
657 } u;
658 } redisSortObject;
659
660 typedef struct _redisSortOperation {
661 int type;
662 robj *pattern;
663 } redisSortOperation;
664
665 /* ZSETs use a specialized version of Skiplists */
666 typedef struct zskiplistNode {
667 robj *obj;
668 double score;
669 struct zskiplistNode *backward;
670 struct zskiplistLevel {
671 struct zskiplistNode *forward;
672 unsigned int span;
673 } level[];
674 } zskiplistNode;
675
676 typedef struct zskiplist {
677 struct zskiplistNode *header, *tail;
678 unsigned long length;
679 int level;
680 } zskiplist;
681
682 typedef struct zset {
683 dict *dict;
684 zskiplist *zsl;
685 } zset;
686
687 /* DIsk store threaded I/O request message */
688 #define REDIS_IOJOB_LOAD 0
689 #define REDIS_IOJOB_SAVE 1
690
691 typedef struct iojob {
692 int type; /* Request type, REDIS_IOJOB_* */
693 redisDb *db;/* Redis database */
694 robj *key; /* This I/O request is about this key */
695 robj *val; /* the value to swap for REDIS_IOJOB_SAVE, otherwise this
696 * field is populated by the I/O thread for REDIS_IOJOB_LOAD. */
697 time_t expire; /* Expire time for this key on REDIS_IOJOB_LOAD */
698 } iojob;
699
700 /* IO operations scheduled -- check dscache.c for more info */
701 typedef struct ioop {
702 int type;
703 redisDb *db;
704 robj *key;
705 time_t ctime; /* This is the creation time of the entry. */
706 } ioop;
707
708 /* Structure to hold list iteration abstraction. */
709 typedef struct {
710 robj *subject;
711 unsigned char encoding;
712 unsigned char direction; /* Iteration direction */
713 unsigned char *zi;
714 listNode *ln;
715 } listTypeIterator;
716
717 /* Structure for an entry while iterating over a list. */
718 typedef struct {
719 listTypeIterator *li;
720 unsigned char *zi; /* Entry in ziplist */
721 listNode *ln; /* Entry in linked list */
722 } listTypeEntry;
723
724 /* Structure to hold set iteration abstraction. */
725 typedef struct {
726 robj *subject;
727 int encoding;
728 int ii; /* intset iterator */
729 dictIterator *di;
730 } setTypeIterator;
731
732 /* Structure to hold hash iteration abstration. Note that iteration over
733 * hashes involves both fields and values. Because it is possible that
734 * not both are required, store pointers in the iterator to avoid
735 * unnecessary memory allocation for fields/values. */
736 typedef struct {
737 int encoding;
738 unsigned char *zi;
739 unsigned char *zk, *zv;
740 unsigned int zklen, zvlen;
741
742 dictIterator *di;
743 dictEntry *de;
744 } hashTypeIterator;
745
746 #define REDIS_HASH_KEY 1
747 #define REDIS_HASH_VALUE 2
748
749 /*-----------------------------------------------------------------------------
750 * Extern declarations
751 *----------------------------------------------------------------------------*/
752
753 extern struct redisServer server;
754 extern struct sharedObjectsStruct shared;
755 extern dictType setDictType;
756 extern dictType zsetDictType;
757 extern dictType clusterNodesDictType;
758 extern double R_Zero, R_PosInf, R_NegInf, R_Nan;
759 dictType hashDictType;
760
761 /*-----------------------------------------------------------------------------
762 * Functions prototypes
763 *----------------------------------------------------------------------------*/
764
765 /* Utils */
766 long long ustime(void);
767
768 /* networking.c -- Networking and Client related operations */
769 redisClient *createClient(int fd);
770 void closeTimedoutClients(void);
771 void freeClient(redisClient *c);
772 void resetClient(redisClient *c);
773 void sendReplyToClient(aeEventLoop *el, int fd, void *privdata, int mask);
774 void addReply(redisClient *c, robj *obj);
775 void *addDeferredMultiBulkLength(redisClient *c);
776 void setDeferredMultiBulkLength(redisClient *c, void *node, long length);
777 void addReplySds(redisClient *c, sds s);
778 void processInputBuffer(redisClient *c);
779 void acceptTcpHandler(aeEventLoop *el, int fd, void *privdata, int mask);
780 void acceptUnixHandler(aeEventLoop *el, int fd, void *privdata, int mask);
781 void readQueryFromClient(aeEventLoop *el, int fd, void *privdata, int mask);
782 void addReplyBulk(redisClient *c, robj *obj);
783 void addReplyBulkCString(redisClient *c, char *s);
784 void addReplyBulkCBuffer(redisClient *c, void *p, size_t len);
785 void addReplyBulkLongLong(redisClient *c, long long ll);
786 void acceptHandler(aeEventLoop *el, int fd, void *privdata, int mask);
787 void addReply(redisClient *c, robj *obj);
788 void addReplySds(redisClient *c, sds s);
789 void addReplyError(redisClient *c, char *err);
790 void addReplyStatus(redisClient *c, char *status);
791 void addReplyDouble(redisClient *c, double d);
792 void addReplyLongLong(redisClient *c, long long ll);
793 void addReplyMultiBulkLen(redisClient *c, long length);
794 void *dupClientReplyValue(void *o);
795 void getClientsMaxBuffers(unsigned long *longest_output_list,
796 unsigned long *biggest_input_buffer);
797
798 #ifdef __GNUC__
799 void addReplyErrorFormat(redisClient *c, const char *fmt, ...)
800 __attribute__((format(printf, 2, 3)));
801 void addReplyStatusFormat(redisClient *c, const char *fmt, ...)
802 __attribute__((format(printf, 2, 3)));
803 #else
804 void addReplyErrorFormat(redisClient *c, const char *fmt, ...);
805 void addReplyStatusFormat(redisClient *c, const char *fmt, ...);
806 #endif
807
808 /* List data type */
809 void listTypeTryConversion(robj *subject, robj *value);
810 void listTypePush(robj *subject, robj *value, int where);
811 robj *listTypePop(robj *subject, int where);
812 unsigned long listTypeLength(robj *subject);
813 listTypeIterator *listTypeInitIterator(robj *subject, int index, unsigned char direction);
814 void listTypeReleaseIterator(listTypeIterator *li);
815 int listTypeNext(listTypeIterator *li, listTypeEntry *entry);
816 robj *listTypeGet(listTypeEntry *entry);
817 void listTypeInsert(listTypeEntry *entry, robj *value, int where);
818 int listTypeEqual(listTypeEntry *entry, robj *o);
819 void listTypeDelete(listTypeEntry *entry);
820 void listTypeConvert(robj *subject, int enc);
821 void unblockClientWaitingData(redisClient *c);
822 int handleClientsWaitingListPush(redisClient *c, robj *key, robj *ele);
823 void popGenericCommand(redisClient *c, int where);
824
825 /* MULTI/EXEC/WATCH... */
826 void unwatchAllKeys(redisClient *c);
827 void initClientMultiState(redisClient *c);
828 void freeClientMultiState(redisClient *c);
829 void queueMultiCommand(redisClient *c, struct redisCommand *cmd);
830 void touchWatchedKey(redisDb *db, robj *key);
831 void touchWatchedKeysOnFlush(int dbid);
832
833 /* Redis object implementation */
834 void decrRefCount(void *o);
835 void incrRefCount(robj *o);
836 void freeStringObject(robj *o);
837 void freeListObject(robj *o);
838 void freeSetObject(robj *o);
839 void freeZsetObject(robj *o);
840 void freeHashObject(robj *o);
841 robj *createObject(int type, void *ptr);
842 robj *createStringObject(char *ptr, size_t len);
843 robj *dupStringObject(robj *o);
844 robj *tryObjectEncoding(robj *o);
845 robj *getDecodedObject(robj *o);
846 size_t stringObjectLen(robj *o);
847 robj *createStringObjectFromLongLong(long long value);
848 robj *createListObject(void);
849 robj *createZiplistObject(void);
850 robj *createSetObject(void);
851 robj *createIntsetObject(void);
852 robj *createHashObject(void);
853 robj *createZsetObject(void);
854 int getLongFromObjectOrReply(redisClient *c, robj *o, long *target, const char *msg);
855 int checkType(redisClient *c, robj *o, int type);
856 int getLongLongFromObjectOrReply(redisClient *c, robj *o, long long *target, const char *msg);
857 int getDoubleFromObjectOrReply(redisClient *c, robj *o, double *target, const char *msg);
858 int getLongLongFromObject(robj *o, long long *target);
859 char *strEncoding(int encoding);
860 int compareStringObjects(robj *a, robj *b);
861 int equalStringObjects(robj *a, robj *b);
862 unsigned long estimateObjectIdleTime(robj *o);
863
864 /* Synchronous I/O with timeout */
865 int syncWrite(int fd, char *ptr, ssize_t size, int timeout);
866 int syncRead(int fd, char *ptr, ssize_t size, int timeout);
867 int syncReadLine(int fd, char *ptr, ssize_t size, int timeout);
868 int fwriteBulkString(FILE *fp, char *s, unsigned long len);
869 int fwriteBulkDouble(FILE *fp, double d);
870 int fwriteBulkLongLong(FILE *fp, long long l);
871 int fwriteBulkObject(FILE *fp, robj *obj);
872 int fwriteBulkCount(FILE *fp, char prefix, int count);
873
874 /* Replication */
875 void replicationFeedSlaves(list *slaves, int dictid, robj **argv, int argc);
876 void replicationFeedMonitors(list *monitors, int dictid, robj **argv, int argc);
877 int syncWithMaster(void);
878 void updateSlavesWaitingBgsave(int bgsaveerr);
879 void replicationCron(void);
880
881 /* Generic persistence functions */
882 void startLoading(FILE *fp);
883 void loadingProgress(off_t pos);
884 void stopLoading(void);
885
886 /* RDB persistence */
887 int rdbLoad(char *filename);
888 int rdbSaveBackground(char *filename);
889 void rdbRemoveTempFile(pid_t childpid);
890 int rdbSave(char *filename);
891 int rdbSaveObject(FILE *fp, robj *o);
892 off_t rdbSavedObjectLen(robj *o);
893 off_t rdbSavedObjectPages(robj *o);
894 robj *rdbLoadObject(int type, FILE *fp);
895 void backgroundSaveDoneHandler(int exitcode, int bysignal);
896 int rdbSaveKeyValuePair(FILE *fp, robj *key, robj *val, time_t expireitme, time_t now);
897 int rdbLoadType(FILE *fp);
898 time_t rdbLoadTime(FILE *fp);
899 robj *rdbLoadStringObject(FILE *fp);
900 int rdbSaveType(FILE *fp, unsigned char type);
901 int rdbSaveLen(FILE *fp, uint32_t len);
902
903 /* AOF persistence */
904 void flushAppendOnlyFile(void);
905 void feedAppendOnlyFile(struct redisCommand *cmd, int dictid, robj **argv, int argc);
906 void aofRemoveTempFile(pid_t childpid);
907 int rewriteAppendOnlyFileBackground(void);
908 int loadAppendOnlyFile(char *filename);
909 void stopAppendOnly(void);
910 int startAppendOnly(void);
911 void backgroundRewriteDoneHandler(int exitcode, int bysignal);
912
913 /* Sorted sets data type */
914 zskiplist *zslCreate(void);
915 void zslFree(zskiplist *zsl);
916 zskiplistNode *zslInsert(zskiplist *zsl, double score, robj *obj);
917
918 /* Core functions */
919 void freeMemoryIfNeeded(void);
920 int processCommand(redisClient *c);
921 void setupSignalHandlers(void);
922 struct redisCommand *lookupCommand(sds name);
923 struct redisCommand *lookupCommandByCString(char *s);
924 void call(redisClient *c, struct redisCommand *cmd);
925 int prepareForShutdown();
926 void redisLog(int level, const char *fmt, ...);
927 void usage();
928 void updateDictResizePolicy(void);
929 int htNeedsResize(dict *dict);
930 void oom(const char *msg);
931 void populateCommandTable(void);
932 void resetCommandTableStats(void);
933
934 /* Disk store */
935 int dsOpen(void);
936 int dsClose(void);
937 int dsSet(redisDb *db, robj *key, robj *val, time_t expire);
938 robj *dsGet(redisDb *db, robj *key, time_t *expire);
939 int dsDel(redisDb *db, robj *key);
940 int dsExists(redisDb *db, robj *key);
941 void dsFlushDb(int dbid);
942 int dsRdbSaveBackground(char *filename);
943 int dsRdbSave(char *filename);
944
945 /* Disk Store Cache */
946 void dsInit(void);
947 void vmThreadedIOCompletedJob(aeEventLoop *el, int fd, void *privdata, int mask);
948 void lockThreadedIO(void);
949 void unlockThreadedIO(void);
950 void freeIOJob(iojob *j);
951 void queueIOJob(iojob *j);
952 void waitEmptyIOJobsQueue(void);
953 void processAllPendingIOJobs(void);
954 int blockClientOnSwappedKeys(redisClient *c, struct redisCommand *cmd);
955 int dontWaitForSwappedKey(redisClient *c, robj *key);
956 void handleClientsBlockedOnSwappedKey(redisDb *db, robj *key);
957 int cacheFreeOneEntry(void);
958 void cacheScheduleIOAddFlag(redisDb *db, robj *key, long flag);
959 void cacheScheduleIODelFlag(redisDb *db, robj *key, long flag);
960 int cacheScheduleIOGetFlags(redisDb *db, robj *key);
961 void cacheScheduleIO(redisDb *db, robj *key, int type);
962 void cacheCron(void);
963 int cacheKeyMayExist(redisDb *db, robj *key);
964 void cacheSetKeyMayExist(redisDb *db, robj *key);
965 void cacheSetKeyDoesNotExist(redisDb *db, robj *key);
966 void cacheForcePointInTime(void);
967
968 /* Set data type */
969 robj *setTypeCreate(robj *value);
970 int setTypeAdd(robj *subject, robj *value);
971 int setTypeRemove(robj *subject, robj *value);
972 int setTypeIsMember(robj *subject, robj *value);
973 setTypeIterator *setTypeInitIterator(robj *subject);
974 void setTypeReleaseIterator(setTypeIterator *si);
975 int setTypeNext(setTypeIterator *si, robj **objele, int64_t *llele);
976 robj *setTypeNextObject(setTypeIterator *si);
977 int setTypeRandomElement(robj *setobj, robj **objele, int64_t *llele);
978 unsigned long setTypeSize(robj *subject);
979 void setTypeConvert(robj *subject, int enc);
980
981 /* Hash data type */
982 void convertToRealHash(robj *o);
983 void hashTypeTryConversion(robj *subject, robj **argv, int start, int end);
984 void hashTypeTryObjectEncoding(robj *subject, robj **o1, robj **o2);
985 int hashTypeGet(robj *o, robj *key, robj **objval, unsigned char **v, unsigned int *vlen);
986 robj *hashTypeGetObject(robj *o, robj *key);
987 int hashTypeExists(robj *o, robj *key);
988 int hashTypeSet(robj *o, robj *key, robj *value);
989 int hashTypeDelete(robj *o, robj *key);
990 unsigned long hashTypeLength(robj *o);
991 hashTypeIterator *hashTypeInitIterator(robj *subject);
992 void hashTypeReleaseIterator(hashTypeIterator *hi);
993 int hashTypeNext(hashTypeIterator *hi);
994 int hashTypeCurrent(hashTypeIterator *hi, int what, robj **objval, unsigned char **v, unsigned int *vlen);
995 robj *hashTypeCurrentObject(hashTypeIterator *hi, int what);
996 robj *hashTypeLookupWriteOrCreate(redisClient *c, robj *key);
997
998 /* Pub / Sub */
999 int pubsubUnsubscribeAllChannels(redisClient *c, int notify);
1000 int pubsubUnsubscribeAllPatterns(redisClient *c, int notify);
1001 void freePubsubPattern(void *p);
1002 int listMatchPubsubPattern(void *a, void *b);
1003
1004 /* Utility functions */
1005 int stringmatchlen(const char *pattern, int patternLen,
1006 const char *string, int stringLen, int nocase);
1007 int stringmatch(const char *pattern, const char *string, int nocase);
1008 long long memtoll(const char *p, int *err);
1009 int ll2string(char *s, size_t len, long long value);
1010 int isStringRepresentableAsLong(sds s, long *longval);
1011 int isStringRepresentableAsLongLong(sds s, long long *longval);
1012 int isObjectRepresentableAsLongLong(robj *o, long long *llongval);
1013
1014 /* Configuration */
1015 void loadServerConfig(char *filename);
1016 void appendServerSaveParams(time_t seconds, int changes);
1017 void resetServerSaveParams();
1018
1019 /* db.c -- Keyspace access API */
1020 int removeExpire(redisDb *db, robj *key);
1021 void propagateExpire(redisDb *db, robj *key);
1022 int expireIfNeeded(redisDb *db, robj *key);
1023 time_t getExpire(redisDb *db, robj *key);
1024 void setExpire(redisDb *db, robj *key, time_t when);
1025 robj *lookupKey(redisDb *db, robj *key);
1026 robj *lookupKeyRead(redisDb *db, robj *key);
1027 robj *lookupKeyWrite(redisDb *db, robj *key);
1028 robj *lookupKeyReadOrReply(redisClient *c, robj *key, robj *reply);
1029 robj *lookupKeyWriteOrReply(redisClient *c, robj *key, robj *reply);
1030 int dbAdd(redisDb *db, robj *key, robj *val);
1031 int dbReplace(redisDb *db, robj *key, robj *val);
1032 int dbExists(redisDb *db, robj *key);
1033 robj *dbRandomKey(redisDb *db);
1034 int dbDelete(redisDb *db, robj *key);
1035 long long emptyDb();
1036 int selectDb(redisClient *c, int id);
1037 void signalModifiedKey(redisDb *db, robj *key);
1038 void signalFlushedDb(int dbid);
1039
1040 /* API to get key arguments from commands */
1041 #define REDIS_GETKEYS_ALL 0
1042 #define REDIS_GETKEYS_PRELOAD 1
1043 int *getKeysFromCommand(struct redisCommand *cmd, robj **argv, int argc, int *numkeys, int flags);
1044 void getKeysFreeResult(int *result);
1045 int *noPreloadGetKeys(struct redisCommand *cmd,robj **argv, int argc, int *numkeys, int flags);
1046 int *renameGetKeys(struct redisCommand *cmd,robj **argv, int argc, int *numkeys, int flags);
1047 int *zunionInterGetKeys(struct redisCommand *cmd,robj **argv, int argc, int *numkeys, int flags);
1048
1049 /* Cluster */
1050 void clusterInit(void);
1051 unsigned short crc16(const char *buf, int len);
1052 unsigned int keyHashSlot(char *key, int keylen);
1053 clusterNode *createClusterNode(char *nodename, int flags);
1054 int clusterAddNode(clusterNode *node);
1055 void clusterCron(void);
1056 clusterNode *getNodeByQuery(redisClient *c, struct redisCommand *cmd, robj **argv, int argc, int *hashslot);
1057
1058 /* Git SHA1 */
1059 char *redisGitSHA1(void);
1060 char *redisGitDirty(void);
1061
1062 /* Commands prototypes */
1063 void authCommand(redisClient *c);
1064 void pingCommand(redisClient *c);
1065 void echoCommand(redisClient *c);
1066 void setCommand(redisClient *c);
1067 void setnxCommand(redisClient *c);
1068 void setexCommand(redisClient *c);
1069 void getCommand(redisClient *c);
1070 void delCommand(redisClient *c);
1071 void existsCommand(redisClient *c);
1072 void setbitCommand(redisClient *c);
1073 void getbitCommand(redisClient *c);
1074 void setrangeCommand(redisClient *c);
1075 void getrangeCommand(redisClient *c);
1076 void incrCommand(redisClient *c);
1077 void decrCommand(redisClient *c);
1078 void incrbyCommand(redisClient *c);
1079 void decrbyCommand(redisClient *c);
1080 void selectCommand(redisClient *c);
1081 void randomkeyCommand(redisClient *c);
1082 void keysCommand(redisClient *c);
1083 void dbsizeCommand(redisClient *c);
1084 void lastsaveCommand(redisClient *c);
1085 void saveCommand(redisClient *c);
1086 void bgsaveCommand(redisClient *c);
1087 void bgrewriteaofCommand(redisClient *c);
1088 void shutdownCommand(redisClient *c);
1089 void moveCommand(redisClient *c);
1090 void renameCommand(redisClient *c);
1091 void renamenxCommand(redisClient *c);
1092 void lpushCommand(redisClient *c);
1093 void rpushCommand(redisClient *c);
1094 void lpushxCommand(redisClient *c);
1095 void rpushxCommand(redisClient *c);
1096 void linsertCommand(redisClient *c);
1097 void lpopCommand(redisClient *c);
1098 void rpopCommand(redisClient *c);
1099 void llenCommand(redisClient *c);
1100 void lindexCommand(redisClient *c);
1101 void lrangeCommand(redisClient *c);
1102 void ltrimCommand(redisClient *c);
1103 void typeCommand(redisClient *c);
1104 void lsetCommand(redisClient *c);
1105 void saddCommand(redisClient *c);
1106 void sremCommand(redisClient *c);
1107 void smoveCommand(redisClient *c);
1108 void sismemberCommand(redisClient *c);
1109 void scardCommand(redisClient *c);
1110 void spopCommand(redisClient *c);
1111 void srandmemberCommand(redisClient *c);
1112 void sinterCommand(redisClient *c);
1113 void sinterstoreCommand(redisClient *c);
1114 void sunionCommand(redisClient *c);
1115 void sunionstoreCommand(redisClient *c);
1116 void sdiffCommand(redisClient *c);
1117 void sdiffstoreCommand(redisClient *c);
1118 void syncCommand(redisClient *c);
1119 void flushdbCommand(redisClient *c);
1120 void flushallCommand(redisClient *c);
1121 void sortCommand(redisClient *c);
1122 void lremCommand(redisClient *c);
1123 void rpoplpushCommand(redisClient *c);
1124 void infoCommand(redisClient *c);
1125 void mgetCommand(redisClient *c);
1126 void monitorCommand(redisClient *c);
1127 void expireCommand(redisClient *c);
1128 void expireatCommand(redisClient *c);
1129 void getsetCommand(redisClient *c);
1130 void ttlCommand(redisClient *c);
1131 void persistCommand(redisClient *c);
1132 void slaveofCommand(redisClient *c);
1133 void debugCommand(redisClient *c);
1134 void msetCommand(redisClient *c);
1135 void msetnxCommand(redisClient *c);
1136 void zaddCommand(redisClient *c);
1137 void zincrbyCommand(redisClient *c);
1138 void zrangeCommand(redisClient *c);
1139 void zrangebyscoreCommand(redisClient *c);
1140 void zrevrangebyscoreCommand(redisClient *c);
1141 void zcountCommand(redisClient *c);
1142 void zrevrangeCommand(redisClient *c);
1143 void zcardCommand(redisClient *c);
1144 void zremCommand(redisClient *c);
1145 void zscoreCommand(redisClient *c);
1146 void zremrangebyscoreCommand(redisClient *c);
1147 void multiCommand(redisClient *c);
1148 void execCommand(redisClient *c);
1149 void discardCommand(redisClient *c);
1150 void blpopCommand(redisClient *c);
1151 void brpopCommand(redisClient *c);
1152 void brpoplpushCommand(redisClient *c);
1153 void appendCommand(redisClient *c);
1154 void strlenCommand(redisClient *c);
1155 void zrankCommand(redisClient *c);
1156 void zrevrankCommand(redisClient *c);
1157 void hsetCommand(redisClient *c);
1158 void hsetnxCommand(redisClient *c);
1159 void hgetCommand(redisClient *c);
1160 void hmsetCommand(redisClient *c);
1161 void hmgetCommand(redisClient *c);
1162 void hdelCommand(redisClient *c);
1163 void hlenCommand(redisClient *c);
1164 void zremrangebyrankCommand(redisClient *c);
1165 void zunionstoreCommand(redisClient *c);
1166 void zinterstoreCommand(redisClient *c);
1167 void hkeysCommand(redisClient *c);
1168 void hvalsCommand(redisClient *c);
1169 void hgetallCommand(redisClient *c);
1170 void hexistsCommand(redisClient *c);
1171 void configCommand(redisClient *c);
1172 void hincrbyCommand(redisClient *c);
1173 void subscribeCommand(redisClient *c);
1174 void unsubscribeCommand(redisClient *c);
1175 void psubscribeCommand(redisClient *c);
1176 void punsubscribeCommand(redisClient *c);
1177 void publishCommand(redisClient *c);
1178 void watchCommand(redisClient *c);
1179 void unwatchCommand(redisClient *c);
1180 void clusterCommand(redisClient *c);
1181 void restoreCommand(redisClient *c);
1182 void migrateCommand(redisClient *c);
1183 void dumpCommand(redisClient *c);
1184 void objectCommand(redisClient *c);
1185
1186 #if defined(__GNUC__)
1187 void *calloc(size_t count, size_t size) __attribute__ ((deprecated));
1188 void free(void *ptr) __attribute__ ((deprecated));
1189 void *malloc(size_t size) __attribute__ ((deprecated));
1190 void *realloc(void *ptr, size_t size) __attribute__ ((deprecated));
1191 #endif
1192
1193 #endif
Redis += OpenLDAP MDB