purgeOldCacheEntries

Walks the channel-user cache and removes entries older than a certain age. Additionally removes channels with no users, and nicknames from the nickname account map that are not found in any channel.

version(WithPersistenceService)

private

void

purgeOldCacheEntries

(

PersistenceService service

const long cacheEntryMaxAgeSeconds

)

Parameters

service PersistenceService: The current PersistenceService.
cacheEntryMaxAgeSeconds long: The maximum age of a cache entry in seconds; older than which will be removed.

Examples

import std.datetime.systime : Clock;

immutable nowInUnix = Clock.currTime.toUnixTime();

IRCPluginState state;
auto service = new PersistenceService(state);

IRCUser user1;
user1.nickname = "foo";
user1.account = "foo";
user1.updated = nowInUnix;

IRCUser user2;
user2.nickname = "bar";
user2.account = "bar";
user2.updated = nowInUnix - 3600;

IRCUser user3;
user3.nickname = "baz";
user3.account = "BAZ";
user3.updated = nowInUnix - 6*3600;

service.channelUserCache.aaOf["#channel1"]["foo"] = user1;
service.channelUserCache.aaOf["#channel1"]["bar"] = user2;
service.channelUserCache.aaOf["#channel1"]["baz"] = user3;
service.channelUserCache.aaOf["#channel2"]["foo"] = user1;
service.channelUserCache.aaOf["#channel2"]["bar"] = user2;
service.channelUserCache.aaOf["#channel3"]["baz"] = user3;

service.nicknameAccountMap["foo"] = "foo";
service.nicknameAccountMap["bar"] = "bar";
service.nicknameAccountMap["baz"] = "BAZ";

assert(service.channelUserCache["#channel1"].length == 3);
assert(service.channelUserCache["#channel2"].length == 2);
assert(service.channelUserCache["#channel3"].length == 1);
assert(service.nicknameAccountMap.length == 3);

service.purgeOldCacheEntries(5*3600);

assert("foo" in service.channelUserCache["#channel1"]);
assert("bar" in service.channelUserCache["#channel1"]);
assert("baz" !in service.channelUserCache["#channel1"]);
assert("foo" in service.channelUserCache["#channel2"]);
assert("bar" in service.channelUserCache["#channel2"]);
assert("#channel3" !in service.channelUserCache);

assert("foo" in service.nicknameAccountMap);
assert("bar" in service.nicknameAccountMap);
assert("baz" !in service.nicknameAccountMap);