]> git.saurik.com Git - redis.git/blame_incremental - src/redis.h
further optimizations for the multi bulk protocol parsing code when big objects are...
[redis.git] / src / redis.h
... / ...
CommitLineData
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*16)
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#define REDIS_MAX_CLIENTS 10000
59
60#define REDIS_REPL_TIMEOUT 60
61#define REDIS_REPL_PING_SLAVE_PERIOD 10
62
63/* Hash table parameters */
64#define REDIS_HT_MINFILL 10 /* Minimal hash table fill 10% */
65
66/* Command flags. Please check the command table defined in the redis.c file
67 * for more information about the meaning of every flag. */
68#define REDIS_CMD_WRITE 1 /* "w" flag */
69#define REDIS_CMD_READONLY 2 /* "r" flag */
70#define REDIS_CMD_DENYOOM 4 /* "m" flag */
71#define REDIS_CMD_FORCE_REPLICATION 8 /* "f" flag */
72#define REDIS_CMD_ADMIN 16 /* "a" flag */
73#define REDIS_CMD_PUBSUB 32 /* "p" flag */
74#define REDIS_CMD_NOSCRIPT 64 /* "s" flag */
75#define REDIS_CMD_RANDOM 128 /* "R" flag */
76
77/* Object types */
78#define REDIS_STRING 0
79#define REDIS_LIST 1
80#define REDIS_SET 2
81#define REDIS_ZSET 3
82#define REDIS_HASH 4
83#define REDIS_VMPOINTER 8
84
85/* Objects encoding. Some kind of objects like Strings and Hashes can be
86 * internally represented in multiple ways. The 'encoding' field of the object
87 * is set to one of this fields for this object. */
88#define REDIS_ENCODING_RAW 0 /* Raw representation */
89#define REDIS_ENCODING_INT 1 /* Encoded as integer */
90#define REDIS_ENCODING_HT 2 /* Encoded as hash table */
91#define REDIS_ENCODING_ZIPMAP 3 /* Encoded as zipmap */
92#define REDIS_ENCODING_LINKEDLIST 4 /* Encoded as regular linked list */
93#define REDIS_ENCODING_ZIPLIST 5 /* Encoded as ziplist */
94#define REDIS_ENCODING_INTSET 6 /* Encoded as intset */
95#define REDIS_ENCODING_SKIPLIST 7 /* Encoded as skiplist */
96
97/* Object types only used for dumping to disk */
98#define REDIS_EXPIRETIME 253
99#define REDIS_SELECTDB 254
100#define REDIS_EOF 255
101
102/* Defines related to the dump file format. To store 32 bits lengths for short
103 * keys requires a lot of space, so we check the most significant 2 bits of
104 * the first byte to interpreter the length:
105 *
106 * 00|000000 => if the two MSB are 00 the len is the 6 bits of this byte
107 * 01|000000 00000000 => 01, the len is 14 byes, 6 bits + 8 bits of next byte
108 * 10|000000 [32 bit integer] => if it's 01, a full 32 bit len will follow
109 * 11|000000 this means: specially encoded object will follow. The six bits
110 * number specify the kind of object that follows.
111 * See the REDIS_RDB_ENC_* defines.
112 *
113 * Lenghts up to 63 are stored using a single byte, most DB keys, and may
114 * values, will fit inside. */
115#define REDIS_RDB_6BITLEN 0
116#define REDIS_RDB_14BITLEN 1
117#define REDIS_RDB_32BITLEN 2
118#define REDIS_RDB_ENCVAL 3
119#define REDIS_RDB_LENERR UINT_MAX
120
121/* When a length of a string object stored on disk has the first two bits
122 * set, the remaining two bits specify a special encoding for the object
123 * accordingly to the following defines: */
124#define REDIS_RDB_ENC_INT8 0 /* 8 bit signed integer */
125#define REDIS_RDB_ENC_INT16 1 /* 16 bit signed integer */
126#define REDIS_RDB_ENC_INT32 2 /* 32 bit signed integer */
127#define REDIS_RDB_ENC_LZF 3 /* string compressed with FASTLZ */
128
129/* Client flags */
130#define REDIS_SLAVE 1 /* This client is a slave server */
131#define REDIS_MASTER 2 /* This client is a master server */
132#define REDIS_MONITOR 4 /* This client is a slave monitor, see MONITOR */
133#define REDIS_MULTI 8 /* This client is in a MULTI context */
134#define REDIS_BLOCKED 16 /* The client is waiting in a blocking operation */
135#define REDIS_DIRTY_CAS 64 /* Watched keys modified. EXEC will fail. */
136#define REDIS_CLOSE_AFTER_REPLY 128 /* Close after writing entire reply. */
137#define REDIS_UNBLOCKED 256 /* This client was unblocked and is stored in
138 server.unblocked_clients */
139#define REDIS_LUA_CLIENT 512 /* This is a non connected client used by Lua */
140#define REDIS_ASKING 1024 /* Client issued the ASKING command */
141
142/* Client request types */
143#define REDIS_REQ_INLINE 1
144#define REDIS_REQ_MULTIBULK 2
145
146/* Slave replication state - slave side */
147#define REDIS_REPL_NONE 0 /* No active replication */
148#define REDIS_REPL_CONNECT 1 /* Must connect to master */
149#define REDIS_REPL_CONNECTING 2 /* Connecting to master */
150#define REDIS_REPL_TRANSFER 3 /* Receiving .rdb from master */
151#define REDIS_REPL_CONNECTED 4 /* Connected to master */
152
153/* Synchronous read timeout - slave side */
154#define REDIS_REPL_SYNCIO_TIMEOUT 5
155
156/* Slave replication state - from the point of view of master
157 * Note that in SEND_BULK and ONLINE state the slave receives new updates
158 * in its output queue. In the WAIT_BGSAVE state instead the server is waiting
159 * to start the next background saving in order to send updates to it. */
160#define REDIS_REPL_WAIT_BGSAVE_START 3 /* master waits bgsave to start feeding it */
161#define REDIS_REPL_WAIT_BGSAVE_END 4 /* master waits bgsave to start bulk DB transmission */
162#define REDIS_REPL_SEND_BULK 5 /* master is sending the bulk DB */
163#define REDIS_REPL_ONLINE 6 /* bulk DB already transmitted, receive updates */
164
165/* List related stuff */
166#define REDIS_HEAD 0
167#define REDIS_TAIL 1
168
169/* Sort operations */
170#define REDIS_SORT_GET 0
171#define REDIS_SORT_ASC 1
172#define REDIS_SORT_DESC 2
173#define REDIS_SORTKEY_MAX 1024
174
175/* Log levels */
176#define REDIS_DEBUG 0
177#define REDIS_VERBOSE 1
178#define REDIS_NOTICE 2
179#define REDIS_WARNING 3
180#define REDIS_LOG_RAW (1<<10) /* Modifier to log without timestamp */
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#define REDIS_ZSET_MAX_ZIPLIST_ENTRIES 128
200#define REDIS_ZSET_MAX_ZIPLIST_VALUE 64
201
202/* Sets operations codes */
203#define REDIS_OP_UNION 0
204#define REDIS_OP_DIFF 1
205#define REDIS_OP_INTER 2
206
207/* Redis maxmemory strategies */
208#define REDIS_MAXMEMORY_VOLATILE_LRU 0
209#define REDIS_MAXMEMORY_VOLATILE_TTL 1
210#define REDIS_MAXMEMORY_VOLATILE_RANDOM 2
211#define REDIS_MAXMEMORY_ALLKEYS_LRU 3
212#define REDIS_MAXMEMORY_ALLKEYS_RANDOM 4
213#define REDIS_MAXMEMORY_NO_EVICTION 5
214
215/* Scripting */
216#define REDIS_LUA_TIME_LIMIT 5000 /* milliseconds */
217
218/* We can print the stacktrace, so our assert is defined this way: */
219#define redisAssertWithInfo(_c,_o,_e) ((_e)?(void)0 : (_redisAssertWithInfo(_c,_o,#_e,__FILE__,__LINE__),_exit(1)))
220#define redisAssert(_e) ((_e)?(void)0 : (_redisAssert(#_e,__FILE__,__LINE__),_exit(1)))
221#define redisPanic(_e) _redisPanic(#_e,__FILE__,__LINE__),_exit(1)
222
223/*-----------------------------------------------------------------------------
224 * Data types
225 *----------------------------------------------------------------------------*/
226
227/* A redis object, that is a type able to hold a string / list / set */
228
229/* The actual Redis Object */
230#define REDIS_LRU_CLOCK_MAX ((1<<21)-1) /* Max value of obj->lru */
231#define REDIS_LRU_CLOCK_RESOLUTION 10 /* LRU clock resolution in seconds */
232typedef struct redisObject {
233 unsigned type:4;
234 unsigned notused:2; /* Not used */
235 unsigned encoding:4;
236 unsigned lru:22; /* lru time (relative to server.lruclock) */
237 int refcount;
238 void *ptr;
239} robj;
240
241/* Macro used to initalize a Redis object allocated on the stack.
242 * Note that this macro is taken near the structure definition to make sure
243 * we'll update it when the structure is changed, to avoid bugs like
244 * bug #85 introduced exactly in this way. */
245#define initStaticStringObject(_var,_ptr) do { \
246 _var.refcount = 1; \
247 _var.type = REDIS_STRING; \
248 _var.encoding = REDIS_ENCODING_RAW; \
249 _var.ptr = _ptr; \
250} while(0);
251
252typedef struct redisDb {
253 dict *dict; /* The keyspace for this DB */
254 dict *expires; /* Timeout of keys with a timeout set */
255 dict *blocking_keys; /* Keys with clients waiting for data (BLPOP) */
256 dict *watched_keys; /* WATCHED keys for MULTI/EXEC CAS */
257 int id;
258} redisDb;
259
260/* Client MULTI/EXEC state */
261typedef struct multiCmd {
262 robj **argv;
263 int argc;
264 struct redisCommand *cmd;
265} multiCmd;
266
267typedef struct multiState {
268 multiCmd *commands; /* Array of MULTI commands */
269 int count; /* Total number of MULTI commands */
270} multiState;
271
272typedef struct blockingState {
273 robj **keys; /* The key we are waiting to terminate a blocking
274 * operation such as BLPOP. Otherwise NULL. */
275 int count; /* Number of blocking keys */
276 time_t timeout; /* Blocking operation timeout. If UNIX current time
277 * is >= timeout then the operation timed out. */
278 robj *target; /* The key that should receive the element,
279 * for BRPOPLPUSH. */
280} blockingState;
281
282/* With multiplexing we need to take per-clinet state.
283 * Clients are taken in a liked list. */
284typedef struct redisClient {
285 int fd;
286 redisDb *db;
287 int dictid;
288 sds querybuf;
289 int argc;
290 robj **argv;
291 struct redisCommand *cmd;
292 int reqtype;
293 int multibulklen; /* number of multi bulk arguments left to read */
294 long bulklen; /* length of bulk argument in multi bulk request */
295 list *reply;
296 int sentlen;
297 time_t lastinteraction; /* time of the last interaction, used for timeout */
298 int flags; /* REDIS_SLAVE | REDIS_MONITOR | REDIS_MULTI ... */
299 int slaveseldb; /* slave selected db, if this client is a slave */
300 int authenticated; /* when requirepass is non-NULL */
301 int replstate; /* replication state if this is a slave */
302 int repldbfd; /* replication DB file descriptor */
303 long repldboff; /* replication DB file offset */
304 off_t repldbsize; /* replication DB file size */
305 multiState mstate; /* MULTI/EXEC state */
306 blockingState bpop; /* blocking state */
307 list *io_keys; /* Keys this client is waiting to be loaded from the
308 * swap file in order to continue. */
309 list *watched_keys; /* Keys WATCHED for MULTI/EXEC CAS */
310 dict *pubsub_channels; /* channels a client is interested in (SUBSCRIBE) */
311 list *pubsub_patterns; /* patterns a client is interested in (SUBSCRIBE) */
312
313 /* Response buffer */
314 int bufpos;
315 char buf[REDIS_REPLY_CHUNK_BYTES];
316} redisClient;
317
318struct saveparam {
319 time_t seconds;
320 int changes;
321};
322
323struct sharedObjectsStruct {
324 robj *crlf, *ok, *err, *emptybulk, *czero, *cone, *cnegone, *pong, *space,
325 *colon, *nullbulk, *nullmultibulk, *queued,
326 *emptymultibulk, *wrongtypeerr, *nokeyerr, *syntaxerr, *sameobjecterr,
327 *outofrangeerr, *noscripterr, *loadingerr, *slowscripterr, *plus,
328 *select0, *select1, *select2, *select3, *select4,
329 *select5, *select6, *select7, *select8, *select9,
330 *messagebulk, *pmessagebulk, *subscribebulk, *unsubscribebulk, *mbulk3,
331 *mbulk4, *psubscribebulk, *punsubscribebulk,
332 *integers[REDIS_SHARED_INTEGERS];
333};
334
335/* ZSETs use a specialized version of Skiplists */
336typedef struct zskiplistNode {
337 robj *obj;
338 double score;
339 struct zskiplistNode *backward;
340 struct zskiplistLevel {
341 struct zskiplistNode *forward;
342 unsigned int span;
343 } level[];
344} zskiplistNode;
345
346typedef struct zskiplist {
347 struct zskiplistNode *header, *tail;
348 unsigned long length;
349 int level;
350} zskiplist;
351
352typedef struct zset {
353 dict *dict;
354 zskiplist *zsl;
355} zset;
356
357/*-----------------------------------------------------------------------------
358 * Redis cluster data structures
359 *----------------------------------------------------------------------------*/
360
361#define REDIS_CLUSTER_SLOTS 4096
362#define REDIS_CLUSTER_OK 0 /* Everything looks ok */
363#define REDIS_CLUSTER_FAIL 1 /* The cluster can't work */
364#define REDIS_CLUSTER_NEEDHELP 2 /* The cluster works, but needs some help */
365#define REDIS_CLUSTER_NAMELEN 40 /* sha1 hex length */
366#define REDIS_CLUSTER_PORT_INCR 10000 /* Cluster port = baseport + PORT_INCR */
367
368struct clusterNode;
369
370/* clusterLink encapsulates everything needed to talk with a remote node. */
371typedef struct clusterLink {
372 int fd; /* TCP socket file descriptor */
373 sds sndbuf; /* Packet send buffer */
374 sds rcvbuf; /* Packet reception buffer */
375 struct clusterNode *node; /* Node related to this link if any, or NULL */
376} clusterLink;
377
378/* Node flags */
379#define REDIS_NODE_MASTER 1 /* The node is a master */
380#define REDIS_NODE_SLAVE 2 /* The node is a slave */
381#define REDIS_NODE_PFAIL 4 /* Failure? Need acknowledge */
382#define REDIS_NODE_FAIL 8 /* The node is believed to be malfunctioning */
383#define REDIS_NODE_MYSELF 16 /* This node is myself */
384#define REDIS_NODE_HANDSHAKE 32 /* We have still to exchange the first ping */
385#define REDIS_NODE_NOADDR 64 /* We don't know the address of this node */
386#define REDIS_NODE_MEET 128 /* Send a MEET message to this node */
387#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"
388
389struct clusterNode {
390 char name[REDIS_CLUSTER_NAMELEN]; /* Node name, hex string, sha1-size */
391 int flags; /* REDIS_NODE_... */
392 unsigned char slots[REDIS_CLUSTER_SLOTS/8]; /* slots handled by this node */
393 int numslaves; /* Number of slave nodes, if this is a master */
394 struct clusterNode **slaves; /* pointers to slave nodes */
395 struct clusterNode *slaveof; /* pointer to the master node */
396 time_t ping_sent; /* Unix time we sent latest ping */
397 time_t pong_received; /* Unix time we received the pong */
398 char *configdigest; /* Configuration digest of this node */
399 time_t configdigest_ts; /* Configuration digest timestamp */
400 char ip[16]; /* Latest known IP address of this node */
401 int port; /* Latest known port of this node */
402 clusterLink *link; /* TCP/IP link with this node */
403};
404typedef struct clusterNode clusterNode;
405
406typedef struct {
407 char *configfile;
408 clusterNode *myself; /* This node */
409 int state; /* REDIS_CLUSTER_OK, REDIS_CLUSTER_FAIL, ... */
410 int node_timeout;
411 dict *nodes; /* Hash table of name -> clusterNode structures */
412 clusterNode *migrating_slots_to[REDIS_CLUSTER_SLOTS];
413 clusterNode *importing_slots_from[REDIS_CLUSTER_SLOTS];
414 clusterNode *slots[REDIS_CLUSTER_SLOTS];
415 zskiplist *slots_to_keys;
416} clusterState;
417
418/* Redis cluster messages header */
419
420/* Note that the PING, PONG and MEET messages are actually the same exact
421 * kind of packet. PONG is the reply to ping, in the extact format as a PING,
422 * while MEET is a special PING that forces the receiver to add the sender
423 * as a node (if it is not already in the list). */
424#define CLUSTERMSG_TYPE_PING 0 /* Ping */
425#define CLUSTERMSG_TYPE_PONG 1 /* Pong (reply to Ping) */
426#define CLUSTERMSG_TYPE_MEET 2 /* Meet "let's join" message */
427#define CLUSTERMSG_TYPE_FAIL 3 /* Mark node xxx as failing */
428#define CLUSTERMSG_TYPE_PUBLISH 4 /* Pub/Sub Publish propatagion */
429
430/* Initially we don't know our "name", but we'll find it once we connect
431 * to the first node, using the getsockname() function. Then we'll use this
432 * address for all the next messages. */
433typedef struct {
434 char nodename[REDIS_CLUSTER_NAMELEN];
435 uint32_t ping_sent;
436 uint32_t pong_received;
437 char ip[16]; /* IP address last time it was seen */
438 uint16_t port; /* port last time it was seen */
439 uint16_t flags;
440 uint32_t notused; /* for 64 bit alignment */
441} clusterMsgDataGossip;
442
443typedef struct {
444 char nodename[REDIS_CLUSTER_NAMELEN];
445} clusterMsgDataFail;
446
447typedef struct {
448 uint32_t channel_len;
449 uint32_t message_len;
450 unsigned char bulk_data[8]; /* defined as 8 just for alignment concerns. */
451} clusterMsgDataPublish;
452
453union clusterMsgData {
454 /* PING, MEET and PONG */
455 struct {
456 /* Array of N clusterMsgDataGossip structures */
457 clusterMsgDataGossip gossip[1];
458 } ping;
459
460 /* FAIL */
461 struct {
462 clusterMsgDataFail about;
463 } fail;
464
465 /* PUBLISH */
466 struct {
467 clusterMsgDataPublish msg;
468 } publish;
469};
470
471typedef struct {
472 uint32_t totlen; /* Total length of this message */
473 uint16_t type; /* Message type */
474 uint16_t count; /* Only used for some kind of messages. */
475 char sender[REDIS_CLUSTER_NAMELEN]; /* Name of the sender node */
476 unsigned char myslots[REDIS_CLUSTER_SLOTS/8];
477 char slaveof[REDIS_CLUSTER_NAMELEN];
478 char configdigest[32];
479 uint16_t port; /* Sender TCP base port */
480 unsigned char state; /* Cluster state from the POV of the sender */
481 unsigned char notused[5]; /* Reserved for future use. For alignment. */
482 union clusterMsgData data;
483} clusterMsg;
484
485/*-----------------------------------------------------------------------------
486 * Global server state
487 *----------------------------------------------------------------------------*/
488
489struct redisServer {
490 /* General */
491 redisDb *db;
492 dict *commands; /* Command table hahs table */
493 aeEventLoop *el;
494 /* Networking */
495 int port;
496 char *bindaddr;
497 char *unixsocket;
498 mode_t unixsocketperm;
499 int ipfd;
500 int sofd;
501 int cfd;
502 list *clients;
503 list *slaves, *monitors;
504 char neterr[ANET_ERR_LEN];
505 /* RDB / AOF loading information */
506 int loading;
507 off_t loading_total_bytes;
508 off_t loading_loaded_bytes;
509 time_t loading_start_time;
510 /* Fast pointers to often looked up command */
511 struct redisCommand *delCommand, *multiCommand;
512 int cronloops; /* number of times the cron function run */
513 time_t lastsave; /* Unix time of last save succeeede */
514 /* Fields used only for stats */
515 time_t stat_starttime; /* server start time */
516 long long stat_numcommands; /* number of processed commands */
517 long long stat_numconnections; /* number of connections received */
518 long long stat_expiredkeys; /* number of expired keys */
519 long long stat_evictedkeys; /* number of evicted keys (maxmemory) */
520 long long stat_keyspace_hits; /* number of successful lookups of keys */
521 long long stat_keyspace_misses; /* number of failed lookups of keys */
522 size_t stat_peak_memory; /* max used memory record */
523 long long stat_fork_time; /* time needed to perform latets fork() */
524 list *slowlog;
525 long long slowlog_entry_id;
526 long long slowlog_log_slower_than;
527 unsigned long slowlog_max_len;
528 /* Configuration */
529 int verbosity;
530 int maxidletime;
531 int dbnum;
532 int daemonize;
533 int appendonly;
534 int appendfsync;
535 int no_appendfsync_on_rewrite;
536 int auto_aofrewrite_perc; /* Rewrite AOF if % growth is > M and... */
537 off_t auto_aofrewrite_min_size; /* the AOF file is at least N bytes. */
538 off_t auto_aofrewrite_base_size;/* AOF size on latest startup or rewrite. */
539 off_t appendonly_current_size; /* AOF current size. */
540 int aofrewrite_scheduled; /* Rewrite once BGSAVE terminates. */
541 int shutdown_asap;
542 int activerehashing;
543 char *requirepass;
544 /* Persistence */
545 long long dirty; /* changes to DB from the last save */
546 long long dirty_before_bgsave; /* used to restore dirty on failed BGSAVE */
547 time_t lastfsync;
548 int appendfd;
549 int appendseldb;
550 time_t aof_flush_postponed_start;
551 char *pidfile;
552 pid_t bgsavechildpid;
553 pid_t bgrewritechildpid;
554 sds bgrewritebuf; /* buffer taken by parent during oppend only rewrite */
555 sds aofbuf; /* AOF buffer, written before entering the event loop */
556 struct saveparam *saveparams;
557 int saveparamslen;
558 char *dbfilename;
559 int rdbcompression;
560 char *appendfilename;
561 /* Logging */
562 char *logfile;
563 int syslog_enabled;
564 char *syslog_ident;
565 int syslog_facility;
566 /* Replication related */
567 int isslave;
568 /* Slave specific fields */
569 char *masterauth;
570 char *masterhost;
571 int masterport;
572 int repl_ping_slave_period;
573 int repl_timeout;
574 redisClient *master; /* client that is master for this slave */
575 int repl_syncio_timeout; /* timeout for synchronous I/O calls */
576 int replstate; /* replication status if the instance is a slave */
577 off_t repl_transfer_left; /* bytes left reading .rdb */
578 int repl_transfer_s; /* slave -> master SYNC socket */
579 int repl_transfer_fd; /* slave -> master SYNC temp file descriptor */
580 char *repl_transfer_tmpfile; /* slave-> master SYNC temp file name */
581 time_t repl_transfer_lastio; /* unix time of the latest read, for timeout */
582 int repl_serve_stale_data; /* Serve stale data when link is down? */
583 time_t repl_down_since; /* unix time at which link with master went down */
584 /* Limits */
585 unsigned int maxclients;
586 unsigned long long maxmemory;
587 int maxmemory_policy;
588 int maxmemory_samples;
589 /* Blocked clients */
590 unsigned int bpop_blocked_clients;
591 list *unblocked_clients; /* list of clients to unblock before next loop */
592 /* Sort parameters - qsort_r() is only available under BSD so we
593 * have to take this state global, in order to pass it to sortCompare() */
594 int sort_desc;
595 int sort_alpha;
596 int sort_bypattern;
597 /* Zip structure config */
598 size_t hash_max_zipmap_entries;
599 size_t hash_max_zipmap_value;
600 size_t list_max_ziplist_entries;
601 size_t list_max_ziplist_value;
602 size_t set_max_intset_entries;
603 size_t zset_max_ziplist_entries;
604 size_t zset_max_ziplist_value;
605 time_t unixtime; /* Unix time sampled every second. */
606 /* Pubsub */
607 dict *pubsub_channels; /* Map channels to list of subscribed clients */
608 list *pubsub_patterns; /* A list of pubsub_patterns */
609 /* Misc */
610 unsigned lruclock:22; /* clock incrementing every minute, for LRU */
611 unsigned lruclock_padding:10;
612 /* Cluster */
613 int cluster_enabled;
614 clusterState cluster;
615 /* Scripting */
616 lua_State *lua; /* The Lua interpreter. We use just one for all clients */
617 redisClient *lua_client; /* The "fake client" to query Redis from Lua */
618 dict *lua_scripts; /* A dictionary of SHA1 -> Lua scripts */
619 long long lua_time_limit;
620 long long lua_time_start;
621 int lua_random_dirty; /* True if a random command was called during the
622 exection of the current script. */
623 int lua_timedout; /* True if we reached the time limit for script
624 execution. */
625};
626
627typedef struct pubsubPattern {
628 redisClient *client;
629 robj *pattern;
630} pubsubPattern;
631
632typedef void redisCommandProc(redisClient *c);
633typedef int *redisGetKeysProc(struct redisCommand *cmd, robj **argv, int argc, int *numkeys, int flags);
634struct redisCommand {
635 char *name;
636 redisCommandProc *proc;
637 int arity;
638 char *sflags; /* Flags as string represenation, one char per flag. */
639 int flags; /* The actual flags, obtained from the 'sflags' field. */
640 /* Use a function to determine keys arguments in a command line.
641 * Used for Redis Cluster redirect. */
642 redisGetKeysProc *getkeys_proc;
643 /* What keys should be loaded in background when calling this command? */
644 int firstkey; /* The first argument that's a key (0 = no keys) */
645 int lastkey; /* THe last argument that's a key */
646 int keystep; /* The step between first and last key */
647 long long microseconds, calls;
648};
649
650struct redisFunctionSym {
651 char *name;
652 unsigned long pointer;
653};
654
655typedef struct _redisSortObject {
656 robj *obj;
657 union {
658 double score;
659 robj *cmpobj;
660 } u;
661} redisSortObject;
662
663typedef struct _redisSortOperation {
664 int type;
665 robj *pattern;
666} redisSortOperation;
667
668/* Structure to hold list iteration abstraction. */
669typedef struct {
670 robj *subject;
671 unsigned char encoding;
672 unsigned char direction; /* Iteration direction */
673 unsigned char *zi;
674 listNode *ln;
675} listTypeIterator;
676
677/* Structure for an entry while iterating over a list. */
678typedef struct {
679 listTypeIterator *li;
680 unsigned char *zi; /* Entry in ziplist */
681 listNode *ln; /* Entry in linked list */
682} listTypeEntry;
683
684/* Structure to hold set iteration abstraction. */
685typedef struct {
686 robj *subject;
687 int encoding;
688 int ii; /* intset iterator */
689 dictIterator *di;
690} setTypeIterator;
691
692/* Structure to hold hash iteration abstration. Note that iteration over
693 * hashes involves both fields and values. Because it is possible that
694 * not both are required, store pointers in the iterator to avoid
695 * unnecessary memory allocation for fields/values. */
696typedef struct {
697 int encoding;
698 unsigned char *zi;
699 unsigned char *zk, *zv;
700 unsigned int zklen, zvlen;
701
702 dictIterator *di;
703 dictEntry *de;
704} hashTypeIterator;
705
706#define REDIS_HASH_KEY 1
707#define REDIS_HASH_VALUE 2
708
709/*-----------------------------------------------------------------------------
710 * Extern declarations
711 *----------------------------------------------------------------------------*/
712
713extern struct redisServer server;
714extern struct sharedObjectsStruct shared;
715extern dictType setDictType;
716extern dictType zsetDictType;
717extern dictType clusterNodesDictType;
718extern dictType dbDictType;
719extern double R_Zero, R_PosInf, R_NegInf, R_Nan;
720dictType hashDictType;
721
722/*-----------------------------------------------------------------------------
723 * Functions prototypes
724 *----------------------------------------------------------------------------*/
725
726/* Utils */
727long long ustime(void);
728
729/* networking.c -- Networking and Client related operations */
730redisClient *createClient(int fd);
731void closeTimedoutClients(void);
732void freeClient(redisClient *c);
733void resetClient(redisClient *c);
734void sendReplyToClient(aeEventLoop *el, int fd, void *privdata, int mask);
735void addReply(redisClient *c, robj *obj);
736void *addDeferredMultiBulkLength(redisClient *c);
737void setDeferredMultiBulkLength(redisClient *c, void *node, long length);
738void addReplySds(redisClient *c, sds s);
739void processInputBuffer(redisClient *c);
740void acceptTcpHandler(aeEventLoop *el, int fd, void *privdata, int mask);
741void acceptUnixHandler(aeEventLoop *el, int fd, void *privdata, int mask);
742void readQueryFromClient(aeEventLoop *el, int fd, void *privdata, int mask);
743void addReplyBulk(redisClient *c, robj *obj);
744void addReplyBulkCString(redisClient *c, char *s);
745void addReplyBulkCBuffer(redisClient *c, void *p, size_t len);
746void addReplyBulkLongLong(redisClient *c, long long ll);
747void acceptHandler(aeEventLoop *el, int fd, void *privdata, int mask);
748void addReply(redisClient *c, robj *obj);
749void addReplySds(redisClient *c, sds s);
750void addReplyError(redisClient *c, char *err);
751void addReplyStatus(redisClient *c, char *status);
752void addReplyDouble(redisClient *c, double d);
753void addReplyLongLong(redisClient *c, long long ll);
754void addReplyMultiBulkLen(redisClient *c, long length);
755void *dupClientReplyValue(void *o);
756void getClientsMaxBuffers(unsigned long *longest_output_list,
757 unsigned long *biggest_input_buffer);
758void rewriteClientCommandVector(redisClient *c, int argc, ...);
759void rewriteClientCommandArgument(redisClient *c, int i, robj *newval);
760
761#ifdef __GNUC__
762void addReplyErrorFormat(redisClient *c, const char *fmt, ...)
763 __attribute__((format(printf, 2, 3)));
764void addReplyStatusFormat(redisClient *c, const char *fmt, ...)
765 __attribute__((format(printf, 2, 3)));
766#else
767void addReplyErrorFormat(redisClient *c, const char *fmt, ...);
768void addReplyStatusFormat(redisClient *c, const char *fmt, ...);
769#endif
770
771/* List data type */
772void listTypeTryConversion(robj *subject, robj *value);
773void listTypePush(robj *subject, robj *value, int where);
774robj *listTypePop(robj *subject, int where);
775unsigned long listTypeLength(robj *subject);
776listTypeIterator *listTypeInitIterator(robj *subject, int index, unsigned char direction);
777void listTypeReleaseIterator(listTypeIterator *li);
778int listTypeNext(listTypeIterator *li, listTypeEntry *entry);
779robj *listTypeGet(listTypeEntry *entry);
780void listTypeInsert(listTypeEntry *entry, robj *value, int where);
781int listTypeEqual(listTypeEntry *entry, robj *o);
782void listTypeDelete(listTypeEntry *entry);
783void listTypeConvert(robj *subject, int enc);
784void unblockClientWaitingData(redisClient *c);
785int handleClientsWaitingListPush(redisClient *c, robj *key, robj *ele);
786void popGenericCommand(redisClient *c, int where);
787
788/* MULTI/EXEC/WATCH... */
789void unwatchAllKeys(redisClient *c);
790void initClientMultiState(redisClient *c);
791void freeClientMultiState(redisClient *c);
792void queueMultiCommand(redisClient *c);
793void touchWatchedKey(redisDb *db, robj *key);
794void touchWatchedKeysOnFlush(int dbid);
795
796/* Redis object implementation */
797void decrRefCount(void *o);
798void incrRefCount(robj *o);
799robj *resetRefCount(robj *obj);
800void freeStringObject(robj *o);
801void freeListObject(robj *o);
802void freeSetObject(robj *o);
803void freeZsetObject(robj *o);
804void freeHashObject(robj *o);
805robj *createObject(int type, void *ptr);
806robj *createStringObject(char *ptr, size_t len);
807robj *dupStringObject(robj *o);
808int isObjectRepresentableAsLongLong(robj *o, long long *llongval);
809robj *tryObjectEncoding(robj *o);
810robj *getDecodedObject(robj *o);
811size_t stringObjectLen(robj *o);
812robj *createStringObjectFromLongLong(long long value);
813robj *createListObject(void);
814robj *createZiplistObject(void);
815robj *createSetObject(void);
816robj *createIntsetObject(void);
817robj *createHashObject(void);
818robj *createZsetObject(void);
819robj *createZsetZiplistObject(void);
820int getLongFromObjectOrReply(redisClient *c, robj *o, long *target, const char *msg);
821int checkType(redisClient *c, robj *o, int type);
822int getLongLongFromObjectOrReply(redisClient *c, robj *o, long long *target, const char *msg);
823int getDoubleFromObjectOrReply(redisClient *c, robj *o, double *target, const char *msg);
824int getLongLongFromObject(robj *o, long long *target);
825char *strEncoding(int encoding);
826int compareStringObjects(robj *a, robj *b);
827int equalStringObjects(robj *a, robj *b);
828unsigned long estimateObjectIdleTime(robj *o);
829
830/* Synchronous I/O with timeout */
831int syncWrite(int fd, char *ptr, ssize_t size, int timeout);
832int syncRead(int fd, char *ptr, ssize_t size, int timeout);
833int syncReadLine(int fd, char *ptr, ssize_t size, int timeout);
834
835/* Replication */
836void replicationFeedSlaves(list *slaves, int dictid, robj **argv, int argc);
837void replicationFeedMonitors(list *monitors, int dictid, robj **argv, int argc);
838void updateSlavesWaitingBgsave(int bgsaveerr);
839void replicationCron(void);
840
841/* Generic persistence functions */
842void startLoading(FILE *fp);
843void loadingProgress(off_t pos);
844void stopLoading(void);
845
846/* RDB persistence */
847#include "rdb.h"
848
849/* AOF persistence */
850void flushAppendOnlyFile(int force);
851void feedAppendOnlyFile(struct redisCommand *cmd, int dictid, robj **argv, int argc);
852void aofRemoveTempFile(pid_t childpid);
853int rewriteAppendOnlyFileBackground(void);
854int loadAppendOnlyFile(char *filename);
855void stopAppendOnly(void);
856int startAppendOnly(void);
857void backgroundRewriteDoneHandler(int exitcode, int bysignal);
858
859/* Sorted sets data type */
860
861/* Struct to hold a inclusive/exclusive range spec. */
862typedef struct {
863 double min, max;
864 int minex, maxex; /* are min or max exclusive? */
865} zrangespec;
866
867zskiplist *zslCreate(void);
868void zslFree(zskiplist *zsl);
869zskiplistNode *zslInsert(zskiplist *zsl, double score, robj *obj);
870unsigned char *zzlInsert(unsigned char *zl, robj *ele, double score);
871int zslDelete(zskiplist *zsl, double score, robj *obj);
872zskiplistNode *zslFirstInRange(zskiplist *zsl, zrangespec range);
873double zzlGetScore(unsigned char *sptr);
874void zzlNext(unsigned char *zl, unsigned char **eptr, unsigned char **sptr);
875void zzlPrev(unsigned char *zl, unsigned char **eptr, unsigned char **sptr);
876unsigned int zsetLength(robj *zobj);
877void zsetConvert(robj *zobj, int encoding);
878
879/* Core functions */
880void freeMemoryIfNeeded(void);
881int processCommand(redisClient *c);
882void setupSignalHandlers(void);
883struct redisCommand *lookupCommand(sds name);
884struct redisCommand *lookupCommandByCString(char *s);
885void call(redisClient *c);
886int prepareForShutdown();
887void redisLog(int level, const char *fmt, ...);
888void redisLogRaw(int level, const char *msg);
889void usage();
890void updateDictResizePolicy(void);
891int htNeedsResize(dict *dict);
892void oom(const char *msg);
893void populateCommandTable(void);
894void resetCommandTableStats(void);
895
896/* Set data type */
897robj *setTypeCreate(robj *value);
898int setTypeAdd(robj *subject, robj *value);
899int setTypeRemove(robj *subject, robj *value);
900int setTypeIsMember(robj *subject, robj *value);
901setTypeIterator *setTypeInitIterator(robj *subject);
902void setTypeReleaseIterator(setTypeIterator *si);
903int setTypeNext(setTypeIterator *si, robj **objele, int64_t *llele);
904robj *setTypeNextObject(setTypeIterator *si);
905int setTypeRandomElement(robj *setobj, robj **objele, int64_t *llele);
906unsigned long setTypeSize(robj *subject);
907void setTypeConvert(robj *subject, int enc);
908
909/* Hash data type */
910void convertToRealHash(robj *o);
911void hashTypeTryConversion(robj *subject, robj **argv, int start, int end);
912void hashTypeTryObjectEncoding(robj *subject, robj **o1, robj **o2);
913int hashTypeGet(robj *o, robj *key, robj **objval, unsigned char **v, unsigned int *vlen);
914robj *hashTypeGetObject(robj *o, robj *key);
915int hashTypeExists(robj *o, robj *key);
916int hashTypeSet(robj *o, robj *key, robj *value);
917int hashTypeDelete(robj *o, robj *key);
918unsigned long hashTypeLength(robj *o);
919hashTypeIterator *hashTypeInitIterator(robj *subject);
920void hashTypeReleaseIterator(hashTypeIterator *hi);
921int hashTypeNext(hashTypeIterator *hi);
922int hashTypeCurrent(hashTypeIterator *hi, int what, robj **objval, unsigned char **v, unsigned int *vlen);
923robj *hashTypeCurrentObject(hashTypeIterator *hi, int what);
924robj *hashTypeLookupWriteOrCreate(redisClient *c, robj *key);
925
926/* Pub / Sub */
927int pubsubUnsubscribeAllChannels(redisClient *c, int notify);
928int pubsubUnsubscribeAllPatterns(redisClient *c, int notify);
929void freePubsubPattern(void *p);
930int listMatchPubsubPattern(void *a, void *b);
931int pubsubPublishMessage(robj *channel, robj *message);
932
933/* Configuration */
934void loadServerConfig(char *filename);
935void appendServerSaveParams(time_t seconds, int changes);
936void resetServerSaveParams();
937
938/* db.c -- Keyspace access API */
939int removeExpire(redisDb *db, robj *key);
940void propagateExpire(redisDb *db, robj *key);
941int expireIfNeeded(redisDb *db, robj *key);
942time_t getExpire(redisDb *db, robj *key);
943void setExpire(redisDb *db, robj *key, time_t when);
944robj *lookupKey(redisDb *db, robj *key);
945robj *lookupKeyRead(redisDb *db, robj *key);
946robj *lookupKeyWrite(redisDb *db, robj *key);
947robj *lookupKeyReadOrReply(redisClient *c, robj *key, robj *reply);
948robj *lookupKeyWriteOrReply(redisClient *c, robj *key, robj *reply);
949void dbAdd(redisDb *db, robj *key, robj *val);
950void dbOverwrite(redisDb *db, robj *key, robj *val);
951void setKey(redisDb *db, robj *key, robj *val);
952int dbExists(redisDb *db, robj *key);
953robj *dbRandomKey(redisDb *db);
954int dbDelete(redisDb *db, robj *key);
955long long emptyDb();
956int selectDb(redisClient *c, int id);
957void signalModifiedKey(redisDb *db, robj *key);
958void signalFlushedDb(int dbid);
959unsigned int GetKeysInSlot(unsigned int hashslot, robj **keys, unsigned int count);
960
961/* API to get key arguments from commands */
962#define REDIS_GETKEYS_ALL 0
963#define REDIS_GETKEYS_PRELOAD 1
964int *getKeysFromCommand(struct redisCommand *cmd, robj **argv, int argc, int *numkeys, int flags);
965void getKeysFreeResult(int *result);
966int *noPreloadGetKeys(struct redisCommand *cmd,robj **argv, int argc, int *numkeys, int flags);
967int *renameGetKeys(struct redisCommand *cmd,robj **argv, int argc, int *numkeys, int flags);
968int *zunionInterGetKeys(struct redisCommand *cmd,robj **argv, int argc, int *numkeys, int flags);
969
970/* Cluster */
971void clusterInit(void);
972unsigned short crc16(const char *buf, int len);
973unsigned int keyHashSlot(char *key, int keylen);
974clusterNode *createClusterNode(char *nodename, int flags);
975int clusterAddNode(clusterNode *node);
976void clusterCron(void);
977clusterNode *getNodeByQuery(redisClient *c, struct redisCommand *cmd, robj **argv, int argc, int *hashslot, int *ask);
978void clusterPropagatePublish(robj *channel, robj *message);
979
980/* Scripting */
981void scriptingInit(void);
982
983/* Git SHA1 */
984char *redisGitSHA1(void);
985char *redisGitDirty(void);
986
987/* Commands prototypes */
988void authCommand(redisClient *c);
989void pingCommand(redisClient *c);
990void echoCommand(redisClient *c);
991void setCommand(redisClient *c);
992void setnxCommand(redisClient *c);
993void setexCommand(redisClient *c);
994void getCommand(redisClient *c);
995void delCommand(redisClient *c);
996void existsCommand(redisClient *c);
997void setbitCommand(redisClient *c);
998void getbitCommand(redisClient *c);
999void setrangeCommand(redisClient *c);
1000void getrangeCommand(redisClient *c);
1001void incrCommand(redisClient *c);
1002void decrCommand(redisClient *c);
1003void incrbyCommand(redisClient *c);
1004void decrbyCommand(redisClient *c);
1005void selectCommand(redisClient *c);
1006void randomkeyCommand(redisClient *c);
1007void keysCommand(redisClient *c);
1008void dbsizeCommand(redisClient *c);
1009void lastsaveCommand(redisClient *c);
1010void saveCommand(redisClient *c);
1011void bgsaveCommand(redisClient *c);
1012void bgrewriteaofCommand(redisClient *c);
1013void shutdownCommand(redisClient *c);
1014void moveCommand(redisClient *c);
1015void renameCommand(redisClient *c);
1016void renamenxCommand(redisClient *c);
1017void lpushCommand(redisClient *c);
1018void rpushCommand(redisClient *c);
1019void lpushxCommand(redisClient *c);
1020void rpushxCommand(redisClient *c);
1021void linsertCommand(redisClient *c);
1022void lpopCommand(redisClient *c);
1023void rpopCommand(redisClient *c);
1024void llenCommand(redisClient *c);
1025void lindexCommand(redisClient *c);
1026void lrangeCommand(redisClient *c);
1027void ltrimCommand(redisClient *c);
1028void typeCommand(redisClient *c);
1029void lsetCommand(redisClient *c);
1030void saddCommand(redisClient *c);
1031void sremCommand(redisClient *c);
1032void smoveCommand(redisClient *c);
1033void sismemberCommand(redisClient *c);
1034void scardCommand(redisClient *c);
1035void spopCommand(redisClient *c);
1036void srandmemberCommand(redisClient *c);
1037void sinterCommand(redisClient *c);
1038void sinterstoreCommand(redisClient *c);
1039void sunionCommand(redisClient *c);
1040void sunionstoreCommand(redisClient *c);
1041void sdiffCommand(redisClient *c);
1042void sdiffstoreCommand(redisClient *c);
1043void syncCommand(redisClient *c);
1044void flushdbCommand(redisClient *c);
1045void flushallCommand(redisClient *c);
1046void sortCommand(redisClient *c);
1047void lremCommand(redisClient *c);
1048void rpoplpushCommand(redisClient *c);
1049void infoCommand(redisClient *c);
1050void mgetCommand(redisClient *c);
1051void monitorCommand(redisClient *c);
1052void expireCommand(redisClient *c);
1053void expireatCommand(redisClient *c);
1054void getsetCommand(redisClient *c);
1055void ttlCommand(redisClient *c);
1056void persistCommand(redisClient *c);
1057void slaveofCommand(redisClient *c);
1058void debugCommand(redisClient *c);
1059void msetCommand(redisClient *c);
1060void msetnxCommand(redisClient *c);
1061void zaddCommand(redisClient *c);
1062void zincrbyCommand(redisClient *c);
1063void zrangeCommand(redisClient *c);
1064void zrangebyscoreCommand(redisClient *c);
1065void zrevrangebyscoreCommand(redisClient *c);
1066void zcountCommand(redisClient *c);
1067void zrevrangeCommand(redisClient *c);
1068void zcardCommand(redisClient *c);
1069void zremCommand(redisClient *c);
1070void zscoreCommand(redisClient *c);
1071void zremrangebyscoreCommand(redisClient *c);
1072void multiCommand(redisClient *c);
1073void execCommand(redisClient *c);
1074void discardCommand(redisClient *c);
1075void blpopCommand(redisClient *c);
1076void brpopCommand(redisClient *c);
1077void brpoplpushCommand(redisClient *c);
1078void appendCommand(redisClient *c);
1079void strlenCommand(redisClient *c);
1080void zrankCommand(redisClient *c);
1081void zrevrankCommand(redisClient *c);
1082void hsetCommand(redisClient *c);
1083void hsetnxCommand(redisClient *c);
1084void hgetCommand(redisClient *c);
1085void hmsetCommand(redisClient *c);
1086void hmgetCommand(redisClient *c);
1087void hdelCommand(redisClient *c);
1088void hlenCommand(redisClient *c);
1089void zremrangebyrankCommand(redisClient *c);
1090void zunionstoreCommand(redisClient *c);
1091void zinterstoreCommand(redisClient *c);
1092void hkeysCommand(redisClient *c);
1093void hvalsCommand(redisClient *c);
1094void hgetallCommand(redisClient *c);
1095void hexistsCommand(redisClient *c);
1096void configCommand(redisClient *c);
1097void hincrbyCommand(redisClient *c);
1098void subscribeCommand(redisClient *c);
1099void unsubscribeCommand(redisClient *c);
1100void psubscribeCommand(redisClient *c);
1101void punsubscribeCommand(redisClient *c);
1102void publishCommand(redisClient *c);
1103void watchCommand(redisClient *c);
1104void unwatchCommand(redisClient *c);
1105void clusterCommand(redisClient *c);
1106void restoreCommand(redisClient *c);
1107void migrateCommand(redisClient *c);
1108void askingCommand(redisClient *c);
1109void dumpCommand(redisClient *c);
1110void objectCommand(redisClient *c);
1111void clientCommand(redisClient *c);
1112void evalCommand(redisClient *c);
1113void evalShaCommand(redisClient *c);
1114void scriptCommand(redisClient *c);
1115
1116#if defined(__GNUC__)
1117void *calloc(size_t count, size_t size) __attribute__ ((deprecated));
1118void free(void *ptr) __attribute__ ((deprecated));
1119void *malloc(size_t size) __attribute__ ((deprecated));
1120void *realloc(void *ptr, size_t size) __attribute__ ((deprecated));
1121#endif
1122
1123/* Debugging stuff */
1124void _redisAssertWithInfo(redisClient *c, robj *o, char *estr, char *file, int line);
1125void _redisAssert(char *estr, char *file, int line);
1126void _redisPanic(char *msg, char *file, int line);
1127
1128#endif