mirrors/valkey
1
0
Fork 0
mirror of http://github.com/valkey-io/valkey synced 2024-11-23 11:51:01 +00:00
Code Issues Packages Projects Releases Wiki Activity

Modules hooks: initial design of data structures.

Browse Source
This commit is contained in:
antirez 2019-10-18 18:01:39 +02:00
parent ed2ba31e4c
commit 3170f63330
1 changed files with 41 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

42
src/module.c
View File

@ -65,7 +65,7 @@ struct RedisModule {
list *filters; /* List of filters the module has registered. */
int in_call; /* RM_Call() nesting level */
int options; /* Module options and capabilities. */
RedisModuleInfoFunc info_cb; /* callback for module to add INFO fields. */
RedisModuleInfoFunc info_cb; /* Callback for module to add INFO fields. */
};
typedef struct RedisModule RedisModule;
@ -323,6 +323,43 @@ static struct RedisModuleForkInfo {
#define REDISMODULE_ARGV_NO_AOF (1<<1)
#define REDISMODULE_ARGV_NO_REPLICAS (1<<2)
/* Server events hooks data structures and defines: this modules API
* allow modules to subscribe to certain events in Redis, such as
* the start and end of an RDB or AOF save, the change of role in replication,
* and similar other events. */
#define REDISMODULE_EVENT_ID_REPLICATION_ROLE_CHANGED 0
#define REDISMODULE_EVENT_ID_RDB_SAVE_START 1
#define REDISMODULE_EVENT_ID_RDB_SAVE_END 2
#define REDISMODULE_EVENT_ID_AOF_REWRITE_START 3
#define REDISMODULE_EVENT_ID_AOF_REWRITE_END 4
#define REDISMODULE_EVENT_ID_FLUSHDB_START 5
#define REDISMODULE_EVENT_ID_FLUSHDB_END 6
#define REDISMODULE_EVENT_ID_LOADING_START 7
#define REDISMODULE_EVENT_ID_LOADING_END 8
#define REDISMODULE_EVENT_ID_CLIENT_CONNNECTED 9
#define REDISMODULE_EVENT_ID_CLIENT_DISCONNECTED 10
#define REDISMODULE_EVENT_ID_SERVER_SHUTDOWN 11
#define REDISMODULE_EVENT_ID_REPLICA_ONLINE 12
#define REDISMODULE_EVENT_ID_REPLICA_OFFLINE 13
#define REDISMODULE_EVENT_ID_MASTER_LINK_UP 14
#define REDISMODULE_EVENT_ID_MASTER_LINK_DOWN 15
typedef struct RedisModuleEvent {
uint64_t id; /* REDISMODULE_EVENT_ID_... defines. */
uint64_t dataver; /* Version of the structure we pass as 'data'. */
} RedisModuleEvent;
typedef int (*RedisModuleEventCallback)(RedisModuleEvent eid, void *data);
typedef struct RedisModuleEventListener {
RedisModule *module;
RedisModuleEvent event;
RedisModuleEventCallback callback;
} RedisModuleEventListener;
list *RedisModule_EventListeners; /* Global list of all the active events. */
/* --------------------------------------------------------------------------
* Prototypes
* -------------------------------------------------------------------------- */
@ -5614,6 +5651,9 @@ void moduleInitModulesSystem(void) {
/* Create the timers radix tree. */
Timers = raxNew();
/* Setup the event listeners data structures. */
RedisModule_EventListeners = listCreate();
/* Our thread-safe contexts GIL must start with already locked:
* it is just unlocked when it's safe. */
pthread_mutex_lock(&moduleGIL);