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Fix database deadlock in contacts manager.

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// FREEBIE
This commit is contained in:
Matthew Chen 2017-05-02 13:59:35 -04:00
parent 5b9978b07f
commit 147107d76c
1 changed files with 25 additions and 16 deletions
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15
Signal/src/contact/OWSContactsManager.m
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@ -207,11 +207,21 @@ void onAddressBookChanged(ABAddressBookRef notifyAddressBook, CFDictionaryRef in
NSMutableDictionary<NSString *, SignalAccount *> *signalAccountMap = [NSMutableDictionary new];
NSMutableArray<SignalAccount *> *signalAccounts = [NSMutableArray new];
NSArray<Contact *> *contacts = self.allContacts;
// We use a transaction only to load the SignalRecipients for each contact,
// in order to avoid database deadlock.
NSMutableDictionary<NSString *, NSArray<SignalRecipient *> *> *contactIdToSignalRecipientsMap =
[NSMutableDictionary new];
[[TSStorageManager sharedManager].dbConnection readWithBlock:^(YapDatabaseReadTransaction *transaction) {
for (Contact *contact in contacts) {
NSArray<SignalRecipient *> *signalRecipients = [contact signalRecipientsWithTransaction:transaction];
for (SignalRecipient *signalRecipient in
[signalRecipients sortedArrayUsingSelector:@selector(compare:)]) {
contactIdToSignalRecipientsMap[contact.uniqueId] = signalRecipients;
}
}];
for (Contact *contact in contacts) {
NSArray<SignalRecipient *> *signalRecipients = contactIdToSignalRecipientsMap[contact.uniqueId];
for (SignalRecipient *signalRecipient in [signalRecipients sortedArrayUsingSelector:@selector(compare:)]) {
SignalAccount *signalAccount = [[SignalAccount alloc] initWithSignalRecipient:signalRecipient];
signalAccount.contact = contact;
if (signalRecipients.count > 1) {
@ -227,7 +237,6 @@ void onAddressBookChanged(ABAddressBookRef notifyAddressBook, CFDictionaryRef in
[signalAccounts addObject:signalAccount];
}
}
}];
dispatch_async(dispatch_get_main_queue(), ^{
self.signalAccountMap = [signalAccountMap copy];