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Adjust offset and limit in get_history_impl.

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This commit is contained in:
levlam 2023-07-28 13:22:07 +03:00
parent bd0ca2d6fc
commit 16183df0aa
1 changed files with 13 additions and 12 deletions
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25
td/telegram/MessagesManager.cpp
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@ -23562,6 +23562,18 @@ void MessagesManager::get_history_impl(const Dialog *d, MessageId from_message_i
CHECK(d != nullptr);
CHECK(from_message_id.is_valid());
if (offset >= -1) {
// get history before some server or local message
limit = clamp(limit + offset + 1, MAX_GET_HISTORY / 2, MAX_GET_HISTORY);
offset = -1;
} else {
// get history around some server or local message
int32 messages_to_load = max(MAX_GET_HISTORY, limit);
int32 max_add = max(messages_to_load - limit - 2, 0);
offset -= max_add;
limit = MAX_GET_HISTORY;
}
auto dialog_id = d->dialog_id;
if (!have_input_peer(dialog_id, AccessRights::Read)) {
// can't get history in dialogs without read access
@ -23662,17 +23674,6 @@ void MessagesManager::load_messages_impl(const Dialog *d, MessageId from_message
get_history_from_the_end_impl(d, from_database, only_local, std::move(promise), "load_messages_impl");
return;
}
if (offset >= -1) {
// get history before some server or local message
limit = min(max(limit + offset + 1, MAX_GET_HISTORY / 2), MAX_GET_HISTORY);
offset = -1;
} else {
// get history around some server or local message
int32 messages_to_load = max(MAX_GET_HISTORY, limit);
int32 max_add = max(messages_to_load - limit - 2, 0);
offset -= max_add;
limit = MAX_GET_HISTORY;
}
get_history_impl(d, from_message_id, offset, limit, from_database, only_local, std::move(promise));
}
@ -40256,7 +40257,7 @@ void MessagesManager::suffix_load_loop(const Dialog *d, SuffixLoadQueries *queri
queries->suffix_load_has_query_ = true;
queries->suffix_load_query_message_id_ = from_message_id;
if (from_message_id.is_valid()) {
get_history_impl(d, from_message_id, -1, 100, true, true, std::move(promise));
get_history_impl(d, from_message_id, -1, MAX_GET_HISTORY, true, true, std::move(promise));
} else {
CHECK(from_message_id == MessageId());
get_history_from_the_end_impl(d, true, true, std::move(promise), "suffix_load_loop");