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update the server's cache whenever we write metadata

This commit is contained in:
ansuz 2019-08-22 14:52:11 +02:00
parent 347b7a639b
commit 53f04d096d
1 changed files with 7 additions and 0 deletions
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7
historyKeeper.js
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@ -771,6 +771,12 @@ module.exports.create = function (cfg) {
if (msgCount === 0 && !metadata_cache[channelName] && chan && chan.indexOf(user) > -1) {
metadata_cache[channelName] = metadata;
// the index will have already been constructed and cached at this point
// but it will not have detected any metadata because it hasn't been written yet
// this means that the cache starts off as invalid, so we have to correct it
if (chan && chan.index) { chan.index.metadata = metadata; }
// new channels will always have their metadata written to a dedicated metadata log
// but any lines after the first which are not amendments in a particular format will be ignored.
// Thus we should be safe from race conditions here if just write metadata to the log as below...
@ -778,6 +784,7 @@ module.exports.create = function (cfg) {
// otherwise maybe we need to check that the metadata log is empty as well
store.writeMetadata(channelName, JSON.stringify(metadata), function (err) {
if (err) {
// XXX tell the user that there was a channel error?
return void Log.error('HK_WRITE_METADATA');
}
});