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-rw-r--r--examples/redis-unstable/src/notify.c129
1 files changed, 0 insertions, 129 deletions
diff --git a/examples/redis-unstable/src/notify.c b/examples/redis-unstable/src/notify.c
deleted file mode 100644
index 84cd855..0000000
--- a/examples/redis-unstable/src/notify.c
+++ /dev/null
@@ -1,129 +0,0 @@
-/*
- * Copyright (c) 2013-Present, Redis Ltd.
- * All rights reserved.
- *
- * Licensed under your choice of (a) the Redis Source Available License 2.0
- * (RSALv2); or (b) the Server Side Public License v1 (SSPLv1); or (c) the
- * GNU Affero General Public License v3 (AGPLv3).
- */
-
-#include "server.h"
-
-/* This file implements keyspace events notification via Pub/Sub and
- * described at https://redis.io/docs/latest/develop/use/keyspace-notifications/. */
-
-/* Turn a string representing notification classes into an integer
- * representing notification classes flags xored.
- *
- * The function returns -1 if the input contains characters not mapping to
- * any class. */
-int keyspaceEventsStringToFlags(char *classes) {
- char *p = classes;
- int c, flags = 0;
-
- while((c = *p++) != '\0') {
- switch(c) {
- case 'A': flags |= NOTIFY_ALL; break;
- case 'g': flags |= NOTIFY_GENERIC; break;
- case '$': flags |= NOTIFY_STRING; break;
- case 'l': flags |= NOTIFY_LIST; break;
- case 's': flags |= NOTIFY_SET; break;
- case 'h': flags |= NOTIFY_HASH; break;
- case 'z': flags |= NOTIFY_ZSET; break;
- case 'x': flags |= NOTIFY_EXPIRED; break;
- case 'e': flags |= NOTIFY_EVICTED; break;
- case 'K': flags |= NOTIFY_KEYSPACE; break;
- case 'E': flags |= NOTIFY_KEYEVENT; break;
- case 't': flags |= NOTIFY_STREAM; break;
- case 'm': flags |= NOTIFY_KEY_MISS; break;
- case 'd': flags |= NOTIFY_MODULE; break;
- case 'n': flags |= NOTIFY_NEW; break;
- case 'o': flags |= NOTIFY_OVERWRITTEN; break;
- case 'c': flags |= NOTIFY_TYPE_CHANGED; break;
- default: return -1;
- }
- }
- return flags;
-}
-
-/* This function does exactly the reverse of the function above: it gets
- * as input an integer with the xored flags and returns a string representing
- * the selected classes. The string returned is an sds string that needs to
- * be released with sdsfree(). */
-sds keyspaceEventsFlagsToString(int flags) {
- sds res;
-
- res = sdsempty();
- if ((flags & NOTIFY_ALL) == NOTIFY_ALL) {
- res = sdscatlen(res,"A",1);
- } else {
- if (flags & NOTIFY_GENERIC) res = sdscatlen(res,"g",1);
- if (flags & NOTIFY_STRING) res = sdscatlen(res,"$",1);
- if (flags & NOTIFY_LIST) res = sdscatlen(res,"l",1);
- if (flags & NOTIFY_SET) res = sdscatlen(res,"s",1);
- if (flags & NOTIFY_HASH) res = sdscatlen(res,"h",1);
- if (flags & NOTIFY_ZSET) res = sdscatlen(res,"z",1);
- if (flags & NOTIFY_EXPIRED) res = sdscatlen(res,"x",1);
- if (flags & NOTIFY_EVICTED) res = sdscatlen(res,"e",1);
- if (flags & NOTIFY_STREAM) res = sdscatlen(res,"t",1);
- if (flags & NOTIFY_MODULE) res = sdscatlen(res,"d",1);
- if (flags & NOTIFY_NEW) res = sdscatlen(res,"n",1);
- if (flags & NOTIFY_OVERWRITTEN) res = sdscatlen(res,"o",1);
- if (flags & NOTIFY_TYPE_CHANGED) res = sdscatlen(res,"c",1);
- }
- if (flags & NOTIFY_KEYSPACE) res = sdscatlen(res,"K",1);
- if (flags & NOTIFY_KEYEVENT) res = sdscatlen(res,"E",1);
- if (flags & NOTIFY_KEY_MISS) res = sdscatlen(res,"m",1);
- return res;
-}
-
-/* The API provided to the rest of the Redis core is a simple function:
- *
- * notifyKeyspaceEvent(int type, char *event, robj *key, int dbid);
- *
- * 'type' is the notification class we define in `server.h`.
- * 'event' is a C string representing the event name.
- * 'key' is a Redis object representing the key name.
- * 'dbid' is the database ID where the key lives. */
-void notifyKeyspaceEvent(int type, const char *event, robj *key, int dbid) {
- sds chan;
- robj *chanobj, *eventobj;
- int len = -1;
- char buf[24];
-
- /* If any modules are interested in events, notify the module system now.
- * This bypasses the notifications configuration, but the module engine
- * will only call event subscribers if the event type matches the types
- * they are interested in. */
- moduleNotifyKeyspaceEvent(type, event, key, dbid);
-
- /* If notifications for this class of events are off, return ASAP. */
- if (!(server.notify_keyspace_events & type)) return;
-
- eventobj = createStringObject(event,strlen(event));
-
- /* __keyspace@<db>__:<key> <event> notifications. */
- if (server.notify_keyspace_events & NOTIFY_KEYSPACE) {
- chan = sdsnewlen("__keyspace@",11);
- len = ll2string(buf,sizeof(buf),dbid);
- chan = sdscatlen(chan, buf, len);
- chan = sdscatlen(chan, "__:", 3);
- chan = sdscatsds(chan, key->ptr);
- chanobj = createObject(OBJ_STRING, chan);
- pubsubPublishMessage(chanobj, eventobj, 0);
- decrRefCount(chanobj);
- }
-
- /* __keyevent@<db>__:<event> <key> notifications. */
- if (server.notify_keyspace_events & NOTIFY_KEYEVENT) {
- chan = sdsnewlen("__keyevent@",11);
- if (len == -1) len = ll2string(buf,sizeof(buf),dbid);
- chan = sdscatlen(chan, buf, len);
- chan = sdscatlen(chan, "__:", 3);
- chan = sdscatsds(chan, eventobj->ptr);
- chanobj = createObject(OBJ_STRING, chan);
- pubsubPublishMessage(chanobj, key, 0);
- decrRefCount(chanobj);
- }
- decrRefCount(eventobj);
-}