#include <syslog.h>
#include <netinet/in.h>
#include <lua.h>
+#include <signal.h>
#include "ae.h" /* Event driven programming library */
#include "sds.h" /* Dynamic safe strings */
/* Static server configuration */
#define REDIS_SERVERPORT 6379 /* TCP port */
#define REDIS_MAXIDLETIME 0 /* default client timeout: infinite */
-#define REDIS_IOBUF_LEN (1024*16)
-#define REDIS_LOADBUF_LEN 1024
#define REDIS_DEFAULT_DBNUM 16
#define REDIS_CONFIGLINE_MAX 1024
-#define REDIS_MAX_SYNC_TIME 60 /* Slave can't take more to sync */
#define REDIS_EXPIRELOOKUPS_PER_CRON 10 /* lookup 10 expires per loop */
#define REDIS_MAX_WRITE_PER_EVENT (1024*64)
-#define REDIS_REQUEST_MAX_SIZE (1024*1024*256) /* max bytes in inline command */
#define REDIS_SHARED_INTEGERS 10000
-#define REDIS_REPLY_CHUNK_BYTES (16*1024) /* 16k output buffer */
+#define REDIS_SHARED_BULKHDR_LEN 32
#define REDIS_MAX_LOGMSG_LEN 1024 /* Default maximum length of syslog messages */
-#define REDIS_AUTO_AOFREWRITE_PERC 100
-#define REDIS_AUTO_AOFREWRITE_MIN_SIZE (1024*1024)
+#define REDIS_AOF_REWRITE_PERC 100
+#define REDIS_AOF_REWRITE_MIN_SIZE (1024*1024)
+#define REDIS_AOF_REWRITE_ITEMS_PER_CMD 64
#define REDIS_SLOWLOG_LOG_SLOWER_THAN 10000
#define REDIS_SLOWLOG_MAX_LEN 64
#define REDIS_MAX_CLIENTS 10000
#define REDIS_REPL_TIMEOUT 60
#define REDIS_REPL_PING_SLAVE_PERIOD 10
-#define REDIS_MBULK_BIG_ARG (1024*32)
+
+/* Protocol and I/O related defines */
+#define REDIS_MAX_QUERYBUF_LEN (1024*1024*1024) /* 1GB max query buffer. */
+#define REDIS_IOBUF_LEN (1024*16) /* Generic I/O buffer size */
+#define REDIS_REPLY_CHUNK_BYTES (16*1024) /* 16k output buffer */
+#define REDIS_INLINE_MAX_SIZE (1024*64) /* Max size of inline reads */
+#define REDIS_MBULK_BIG_ARG (1024*32)
/* Hash table parameters */
#define REDIS_HT_MINFILL 10 /* Minimal hash table fill 10% */
#define REDIS_CMD_PUBSUB 32 /* "p" flag */
#define REDIS_CMD_NOSCRIPT 64 /* "s" flag */
#define REDIS_CMD_RANDOM 128 /* "R" flag */
+#define REDIS_CMD_SORT_FOR_SCRIPT 256 /* "S" flag */
/* Object types */
#define REDIS_STRING 0
#define REDIS_RDB_ENC_INT32 2 /* 32 bit signed integer */
#define REDIS_RDB_ENC_LZF 3 /* string compressed with FASTLZ */
+/* AOF states */
+#define REDIS_AOF_OFF 0 /* AOF is off */
+#define REDIS_AOF_ON 1 /* AOF is on */
+#define REDIS_AOF_WAIT_REWRITE 2 /* AOF waits rewrite to start appending */
+
/* Client flags */
#define REDIS_SLAVE 1 /* This client is a slave server */
#define REDIS_MASTER 2 /* This client is a master server */
server.unblocked_clients */
#define REDIS_LUA_CLIENT 512 /* This is a non connected client used by Lua */
#define REDIS_ASKING 1024 /* Client issued the ASKING command */
+#define REDIS_CLOSE_ASAP 2048 /* Close this client ASAP */
/* Client request types */
#define REDIS_REQ_INLINE 1
#define REDIS_REQ_MULTIBULK 2
+/* Client classes for client limits, currently used only for
+ * the max-client-output-buffer limit implementation. */
+#define REDIS_CLIENT_LIMIT_CLASS_NORMAL 0
+#define REDIS_CLIENT_LIMIT_CLASS_SLAVE 1
+#define REDIS_CLIENT_LIMIT_CLASS_PUBSUB 2
+#define REDIS_CLIENT_LIMIT_NUM_CLASSES 3
+
/* Slave replication state - slave side */
#define REDIS_REPL_NONE 0 /* No active replication */
#define REDIS_REPL_CONNECT 1 /* Must connect to master */
#define ZSKIPLIST_P 0.25 /* Skiplist P = 1/4 */
/* Append only defines */
-#define APPENDFSYNC_NO 0
-#define APPENDFSYNC_ALWAYS 1
-#define APPENDFSYNC_EVERYSEC 2
+#define AOF_FSYNC_NO 0
+#define AOF_FSYNC_ALWAYS 1
+#define AOF_FSYNC_EVERYSEC 2
/* Zip structure related defaults */
#define REDIS_HASH_MAX_ZIPMAP_ENTRIES 512
#define UNIT_SECONDS 0
#define UNIT_MILLISECONDS 1
+/* SHUTDOWN flags */
+#define REDIS_SHUTDOWN_SAVE 1 /* Force SAVE on SHUTDOWN even if no save
+ points are configured. */
+#define REDIS_SHUTDOWN_NOSAVE 2 /* Don't SAVE on SHUTDOWN. */
+
+/* Command call flags, see call() function */
+#define REDIS_CALL_NONE 0
+#define REDIS_CALL_SLOWLOG 1
+#define REDIS_CALL_STATS 2
+#define REDIS_CALL_PROPAGATE 4
+#define REDIS_CALL_FULL (REDIS_CALL_SLOWLOG | REDIS_CALL_STATS | REDIS_CALL_PROPAGATE)
+
+/* Command propagation flags, see propagate() function */
+#define REDIS_PROPAGATE_NONE 0
+#define REDIS_PROPAGATE_AOF 1
+#define REDIS_PROPAGATE_REPL 2
+
/* We can print the stacktrace, so our assert is defined this way: */
#define redisAssertWithInfo(_c,_o,_e) ((_e)?(void)0 : (_redisAssertWithInfo(_c,_o,#_e,__FILE__,__LINE__),_exit(1)))
#define redisAssert(_e) ((_e)?(void)0 : (_redisAssert(#_e,__FILE__,__LINE__),_exit(1)))
sds querybuf;
int argc;
robj **argv;
- struct redisCommand *cmd;
+ struct redisCommand *cmd, *lastcmd;
int reqtype;
int multibulklen; /* number of multi bulk arguments left to read */
long bulklen; /* length of bulk argument in multi bulk request */
list *reply;
+ unsigned long reply_bytes; /* Tot bytes of objects in reply list */
int sentlen;
time_t lastinteraction; /* time of the last interaction, used for timeout */
+ time_t obuf_soft_limit_reached_time;
int flags; /* REDIS_SLAVE | REDIS_MONITOR | REDIS_MULTI ... */
int slaveseldb; /* slave selected db, if this client is a slave */
int authenticated; /* when requirepass is non-NULL */
*outofrangeerr, *noscripterr, *loadingerr, *slowscripterr, *plus,
*select0, *select1, *select2, *select3, *select4,
*select5, *select6, *select7, *select8, *select9,
- *messagebulk, *pmessagebulk, *subscribebulk, *unsubscribebulk, *mbulk3,
- *mbulk4, *psubscribebulk, *punsubscribebulk,
- *integers[REDIS_SHARED_INTEGERS];
+ *messagebulk, *pmessagebulk, *subscribebulk, *unsubscribebulk,
+ *psubscribebulk, *punsubscribebulk, *del,
+ *integers[REDIS_SHARED_INTEGERS],
+ *mbulkhdr[REDIS_SHARED_BULKHDR_LEN], /* "*<value>\r\n" */
+ *bulkhdr[REDIS_SHARED_BULKHDR_LEN]; /* "$<value>\r\n" */
};
/* ZSETs use a specialized version of Skiplists */
zskiplist *zsl;
} zset;
+typedef struct clientBufferLimitsConfig {
+ unsigned long long hard_limit_bytes;
+ unsigned long long soft_limit_bytes;
+ time_t soft_limit_seconds;
+} clientBufferLimitsConfig;
+
/*-----------------------------------------------------------------------------
* Redis cluster data structures
*----------------------------------------------------------------------------*/
redisDb *db;
dict *commands; /* Command table hahs table */
aeEventLoop *el;
+ unsigned lruclock:22; /* Clock incrementing every minute, for LRU */
+ unsigned lruclock_padding:10;
+ int shutdown_asap; /* SHUTDOWN needed ASAP */
+ int activerehashing; /* Incremental rehash in serverCron() */
+ char *requirepass; /* Pass for AUTH command, or NULL */
+ char *pidfile; /* PID file path */
+ int arch_bits; /* 32 or 64 depending on sizeof(long) */
/* Networking */
- int port;
- char *bindaddr;
- char *unixsocket;
- mode_t unixsocketperm;
- int ipfd;
- int sofd;
- int cfd;
- list *clients;
- list *slaves, *monitors;
- char neterr[ANET_ERR_LEN];
+ int port; /* TCP listening port */
+ char *bindaddr; /* Bind address or NULL */
+ char *unixsocket; /* UNIX socket path */
+ mode_t unixsocketperm; /* UNIX socket permission */
+ int ipfd; /* TCP socket file descriptor */
+ int sofd; /* Unix socket file descriptor */
+ int cfd; /* Cluster bus lisetning socket */
+ list *clients; /* List of active clients */
+ list *clients_to_close; /* Clients to close asynchronously */
+ list *slaves, *monitors; /* List of slaves and MONITORs */
+ redisClient *current_client; /* Current client, only used on crash report */
+ char neterr[ANET_ERR_LEN]; /* Error buffer for anet.c */
/* RDB / AOF loading information */
- int loading;
+ int loading; /* We are loading data from disk if true */
off_t loading_total_bytes;
off_t loading_loaded_bytes;
time_t loading_start_time;
/* Fast pointers to often looked up command */
struct redisCommand *delCommand, *multiCommand;
- int cronloops; /* number of times the cron function run */
+ int cronloops; /* Number of times the cron function run */
time_t lastsave; /* Unix time of last save succeeede */
/* Fields used only for stats */
- time_t stat_starttime; /* server start time */
- long long stat_numcommands; /* number of processed commands */
- long long stat_numconnections; /* number of connections received */
- long long stat_expiredkeys; /* number of expired keys */
- long long stat_evictedkeys; /* number of evicted keys (maxmemory) */
- long long stat_keyspace_hits; /* number of successful lookups of keys */
- long long stat_keyspace_misses; /* number of failed lookups of keys */
- size_t stat_peak_memory; /* max used memory record */
- long long stat_fork_time; /* time needed to perform latets fork() */
- list *slowlog;
- long long slowlog_entry_id;
- long long slowlog_log_slower_than;
- unsigned long slowlog_max_len;
+ time_t stat_starttime; /* Server start time */
+ long long stat_numcommands; /* Number of processed commands */
+ long long stat_numconnections; /* Number of connections received */
+ long long stat_expiredkeys; /* Number of expired keys */
+ long long stat_evictedkeys; /* Number of evicted keys (maxmemory) */
+ long long stat_keyspace_hits; /* Number of successful lookups of keys */
+ long long stat_keyspace_misses; /* Number of failed lookups of keys */
+ size_t stat_peak_memory; /* Max used memory record */
+ long long stat_fork_time; /* Time needed to perform latets fork() */
+ long long stat_rejected_conn; /* Clients rejected because of maxclients */
+ list *slowlog; /* SLOWLOG list of commands */
+ long long slowlog_entry_id; /* SLOWLOG current entry ID */
+ long long slowlog_log_slower_than; /* SLOWLOG time limit (to get logged) */
+ unsigned long slowlog_max_len; /* SLOWLOG max number of items logged */
/* Configuration */
- int verbosity;
- int maxidletime;
- int dbnum;
- int daemonize;
- int appendonly;
- int appendfsync;
- int no_appendfsync_on_rewrite;
- int auto_aofrewrite_perc; /* Rewrite AOF if % growth is > M and... */
- off_t auto_aofrewrite_min_size; /* the AOF file is at least N bytes. */
- off_t auto_aofrewrite_base_size;/* AOF size on latest startup or rewrite. */
- off_t appendonly_current_size; /* AOF current size. */
- int aofrewrite_scheduled; /* Rewrite once BGSAVE terminates. */
- int shutdown_asap;
- int activerehashing;
- char *requirepass;
- /* Persistence */
- long long dirty; /* changes to DB from the last save */
- long long dirty_before_bgsave; /* used to restore dirty on failed BGSAVE */
- time_t lastfsync;
- int appendfd;
- int appendseldb;
- time_t aof_flush_postponed_start;
- char *pidfile;
- pid_t bgsavechildpid;
- pid_t bgrewritechildpid;
- sds bgrewritebuf; /* buffer taken by parent during oppend only rewrite */
- sds aofbuf; /* AOF buffer, written before entering the event loop */
- struct saveparam *saveparams;
- int saveparamslen;
- char *dbfilename;
- int rdbcompression;
- char *appendfilename;
+ int verbosity; /* Loglevel in redis.conf */
+ int maxidletime; /* Client timeout in seconds */
+ size_t client_max_querybuf_len; /* Limit for client query buffer length */
+ int dbnum; /* Total number of configured DBs */
+ int daemonize; /* True if running as a daemon */
+ clientBufferLimitsConfig client_obuf_limits[REDIS_CLIENT_LIMIT_NUM_CLASSES];
+ /* AOF persistence */
+ int aof_state; /* REDIS_AOF_(ON|OFF|WAIT_REWRITE) */
+ int aof_fsync; /* Kind of fsync() policy */
+ char *aof_filename; /* Name of the AOF file */
+ int aof_no_fsync_on_rewrite; /* Don't fsync if a rewrite is in prog. */
+ int aof_rewrite_perc; /* Rewrite AOF if % growth is > M and... */
+ off_t aof_rewrite_min_size; /* the AOF file is at least N bytes. */
+ off_t aof_rewrite_base_size; /* AOF size on latest startup or rewrite. */
+ off_t aof_current_size; /* AOF current size. */
+ int aof_rewrite_scheduled; /* Rewrite once BGSAVE terminates. */
+ pid_t aof_child_pid; /* PID if rewriting process */
+ sds aof_rewrite_buf; /* buffer taken by parent during oppend only rewrite */
+ sds aof_buf; /* AOF buffer, written before entering the event loop */
+ int aof_fd; /* File descriptor of currently selected AOF file */
+ int aof_selected_db; /* Currently selected DB in AOF */
+ time_t aof_flush_postponed_start; /* UNIX time of postponed AOF flush */
+ time_t aof_last_fsync; /* UNIX time of last fsync() */
+ /* RDB persistence */
+ long long dirty; /* Changes to DB from the last save */
+ long long dirty_before_bgsave; /* Used to restore dirty on failed BGSAVE */
+ pid_t rdb_child_pid; /* PID of RDB saving child */
+ struct saveparam *saveparams; /* Save points array for RDB */
+ int saveparamslen; /* Number of saving points */
+ char *rdb_filename; /* Name of RDB file */
+ int rdb_compression; /* Use compression in RDB? */
/* Logging */
- char *logfile;
- int syslog_enabled;
- char *syslog_ident;
- int syslog_facility;
- /* Replication related */
- int isslave;
+ char *logfile; /* Path of log file */
+ int syslog_enabled; /* Is syslog enabled? */
+ char *syslog_ident; /* Syslog ident */
+ int syslog_facility; /* Syslog facility */
/* Slave specific fields */
- char *masterauth;
- char *masterhost;
- int masterport;
- int repl_ping_slave_period;
- int repl_timeout;
- redisClient *master; /* client that is master for this slave */
- int repl_syncio_timeout; /* timeout for synchronous I/O calls */
- int replstate; /* replication status if the instance is a slave */
- off_t repl_transfer_left; /* bytes left reading .rdb */
- int repl_transfer_s; /* slave -> master SYNC socket */
- int repl_transfer_fd; /* slave -> master SYNC temp file descriptor */
- char *repl_transfer_tmpfile; /* slave-> master SYNC temp file name */
- time_t repl_transfer_lastio; /* unix time of the latest read, for timeout */
+ char *masterauth; /* AUTH with this password with master */
+ char *masterhost; /* Hostname of master */
+ int masterport; /* Port of master */
+ int repl_ping_slave_period; /* Master pings the salve every N seconds */
+ int repl_timeout; /* Timeout after N seconds of master idle */
+ redisClient *master; /* Client that is master for this slave */
+ int repl_syncio_timeout; /* Timeout for synchronous I/O calls */
+ int repl_state; /* Replication status if the instance is a slave */
+ off_t repl_transfer_left; /* Bytes left reading .rdb */
+ int repl_transfer_s; /* Slave -> Master SYNC socket */
+ int repl_transfer_fd; /* Slave -> Master SYNC temp file descriptor */
+ char *repl_transfer_tmpfile; /* Slave-> master SYNC temp file name */
+ time_t repl_transfer_lastio; /* Unix time of the latest read, for timeout */
int repl_serve_stale_data; /* Serve stale data when link is down? */
- time_t repl_down_since; /* unix time at which link with master went down */
+ time_t repl_down_since; /* Unix time at which link with master went down */
/* Limits */
- unsigned int maxclients;
- unsigned long long maxmemory;
- int maxmemory_policy;
- int maxmemory_samples;
+ unsigned int maxclients; /* Max number of simultaneous clients */
+ unsigned long long maxmemory; /* Max number of memory bytes to use */
+ int maxmemory_policy; /* Policy for key evition */
+ int maxmemory_samples; /* Pricision of random sampling */
/* Blocked clients */
- unsigned int bpop_blocked_clients;
+ unsigned int bpop_blocked_clients; /* Number of clients blocked by lists */
list *unblocked_clients; /* list of clients to unblock before next loop */
/* Sort parameters - qsort_r() is only available under BSD so we
* have to take this state global, in order to pass it to sortCompare() */
+ int sort_dontsort;
int sort_desc;
int sort_alpha;
int sort_bypattern;
- /* Zip structure config */
+ /* Zip structure config, see redis.conf for more information */
size_t hash_max_zipmap_entries;
size_t hash_max_zipmap_value;
size_t list_max_ziplist_entries;
size_t set_max_intset_entries;
size_t zset_max_ziplist_entries;
size_t zset_max_ziplist_value;
- time_t unixtime; /* Unix time sampled every second. */
+ time_t unixtime; /* Unix time sampled every second. */
/* Pubsub */
- dict *pubsub_channels; /* Map channels to list of subscribed clients */
- list *pubsub_patterns; /* A list of pubsub_patterns */
- /* Misc */
- unsigned lruclock:22; /* clock incrementing every minute, for LRU */
- unsigned lruclock_padding:10;
+ dict *pubsub_channels; /* Map channels to list of subscribed clients */
+ list *pubsub_patterns; /* A list of pubsub_patterns */
/* Cluster */
- int cluster_enabled;
- clusterState cluster;
+ int cluster_enabled; /* Is cluster enabled? */
+ clusterState cluster; /* State of the cluster */
/* Scripting */
lua_State *lua; /* The Lua interpreter. We use just one for all clients */
- redisClient *lua_client; /* The "fake client" to query Redis from Lua */
- dict *lua_scripts; /* A dictionary of SHA1 -> Lua scripts */
- long long lua_time_limit;
- long long lua_time_start;
+ redisClient *lua_client; /* The "fake client" to query Redis from Lua */
+ redisClient *lua_caller; /* The client running EVAL right now, or NULL */
+ dict *lua_scripts; /* A dictionary of SHA1 -> Lua scripts */
+ long long lua_time_limit; /* Script timeout in seconds */
+ long long lua_time_start; /* Start time of script */
+ int lua_write_dirty; /* True if a write command was called during the
+ execution of the current script. */
int lua_random_dirty; /* True if a random command was called during the
- exection of the current script. */
+ execution of the current script. */
int lua_timedout; /* True if we reached the time limit for script
execution. */
+ int lua_kill; /* Kill the script if true. */
+ /* Assert & bug reportign */
+ char *assert_failed;
+ char *assert_file;
+ int assert_line;
+ int bug_report_start; /* True if bug report header was already logged. */
};
typedef struct pubsubPattern {
void addReplyDouble(redisClient *c, double d);
void addReplyLongLong(redisClient *c, long long ll);
void addReplyMultiBulkLen(redisClient *c, long length);
+void copyClientOutputBuffer(redisClient *dst, redisClient *src);
void *dupClientReplyValue(void *o);
void getClientsMaxBuffers(unsigned long *longest_output_list,
unsigned long *biggest_input_buffer);
+sds getClientInfoString(redisClient *client);
+sds getAllClientsInfoString(void);
void rewriteClientCommandVector(redisClient *c, int argc, ...);
void rewriteClientCommandArgument(redisClient *c, int i, robj *newval);
+unsigned long getClientOutputBufferMemoryUsage(redisClient *c);
+void freeClientsInAsyncFreeQueue(void);
+void asyncCloseClientOnOutputBufferLimitReached(redisClient *c);
+int getClientLimitClassByName(char *name);
+char *getClientLimitClassName(int class);
+void flushSlavesOutputBuffers(void);
#ifdef __GNUC__
void addReplyErrorFormat(redisClient *c, const char *fmt, ...)
void listTypePush(robj *subject, robj *value, int where);
robj *listTypePop(robj *subject, int where);
unsigned long listTypeLength(robj *subject);
-listTypeIterator *listTypeInitIterator(robj *subject, int index, unsigned char direction);
+listTypeIterator *listTypeInitIterator(robj *subject, long index, unsigned char direction);
void listTypeReleaseIterator(listTypeIterator *li);
int listTypeNext(listTypeIterator *li, listTypeEntry *entry);
robj *listTypeGet(listTypeEntry *entry);
void zsetConvert(robj *zobj, int encoding);
/* Core functions */
-void freeMemoryIfNeeded(void);
+int freeMemoryIfNeeded(void);
int processCommand(redisClient *c);
void setupSignalHandlers(void);
struct redisCommand *lookupCommand(sds name);
struct redisCommand *lookupCommandByCString(char *s);
-void call(redisClient *c);
+void call(redisClient *c, int flags);
int prepareForShutdown();
void redisLog(int level, const char *fmt, ...);
void redisLogRaw(int level, const char *msg);
int pubsubPublishMessage(robj *channel, robj *message);
/* Configuration */
-void loadServerConfig(char *filename);
+void loadServerConfig(char *filename, char *options);
void appendServerSaveParams(time_t seconds, int changes);
void resetServerSaveParams();
void hexistsCommand(redisClient *c);
void configCommand(redisClient *c);
void hincrbyCommand(redisClient *c);
+void hincrbyfloatCommand(redisClient *c);
void subscribeCommand(redisClient *c);
void unsubscribeCommand(redisClient *c);
void psubscribeCommand(redisClient *c);
void _redisAssertWithInfo(redisClient *c, robj *o, char *estr, char *file, int line);
void _redisAssert(char *estr, char *file, int line);
void _redisPanic(char *msg, char *file, int line);
-
+void bugReportStart(void);
+void redisLogObjectDebugInfo(robj *o);
+void sigsegvHandler(int sig, siginfo_t *info, void *secret);
+sds genRedisInfoString(char *section);
#endif
projects / redis.git / blobdiff