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Use traverse_messages to find minimum message identifier.

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This commit is contained in:
levlam 2023-05-02 23:11:04 +03:00
parent 0d1cdc3e60
commit 5ecc3a0968
1 changed files with 11 additions and 7 deletions
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18
td/telegram/MessagesManager.cpp
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@ -21056,14 +21056,18 @@ tl_object_ptr<td_api::messages> MessagesManager::get_dialog_history(DialogId dia
bool have_a_gap = false;
if (*p == nullptr) {
// there is no gap if from_message_id is less than first message in the dialog
if (left_tries == 0 && d->ordered_messages.messages_ != nullptr && offset < 0) {
const OrderedMessage *cur = d->ordered_messages.messages_.get();
while (cur->left != nullptr) {
cur = cur->left.get();
}
CHECK(cur->message_id > from_message_id);
from_message_id = cur->message_id;
if (left_tries == 0 && offset < 0 && !d->messages.empty()) {
MessageId min_message_id;
d->ordered_messages.traverse_messages(
[&](MessageId message_id) {
min_message_id = message_id;
return true;
},
[](MessageId) { return false; });
CHECK(min_message_id > from_message_id);
from_message_id = min_message_id;
p = d->ordered_messages.get_const_iterator(from_message_id);
CHECK(*p != nullptr);
} else {
have_a_gap = true;
}