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Support applying multiple postponed updates at once.

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This commit is contained in:
levlam 2021-08-18 17:40:28 +03:00
parent 2eaa026bb7
commit 23f5c52ad9
1 changed files with 41 additions and 18 deletions
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59
td/telegram/UpdatesManager.cpp
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@ -2098,32 +2098,54 @@ void UpdatesManager::process_postponed_pts_updates() {
auto old_pts = initial_pts;
int32 skipped_update_count = 0;
int32 applied_update_count = 0;
while (!postponed_pts_updates_.empty()) {
auto update_it = postponed_pts_updates_.begin();
auto &update = update_it->second;
auto new_pts = update.pts;
auto pts_count = update.pts_count;
auto update_it = postponed_pts_updates_.begin();
while (update_it != postponed_pts_updates_.end()) {
auto new_pts = update_it->second.pts;
auto pts_count = update_it->second.pts_count;
if (new_pts <= old_pts || (old_pts >= 1 && new_pts - 500000000 > old_pts)) {
skipped_update_count++;
td_->messages_manager_->skip_old_pending_pts_update(std::move(update.update), new_pts, old_pts, pts_count,
"process_postponed_pts_updates");
update.promise.set_value(Unit());
postponed_pts_updates_.erase(update_it);
td_->messages_manager_->skip_old_pending_pts_update(std::move(update_it->second.update), new_pts, old_pts,
pts_count, "process_postponed_pts_updates");
update_it->second.promise.set_value(Unit());
update_it = postponed_pts_updates_.erase(update_it);
continue;
}
if (old_pts != new_pts - pts_count) {
auto last_update_it = ++update_it;
for (int32 i = 1; true; i++) {
if (old_pts == new_pts - pts_count) {
// the updates can be applied
break;
}
if (old_pts > new_pts - pts_count || last_update_it == postponed_pts_updates_.end() ||
i == GAP_TIMEOUT_UPDATE_COUNT) {
// the updates can't be applied
VLOG(get_difference) << "Can't apply " << i << " next postponed updates, because their pts_count is "
<< pts_count << " instead of expected " << new_pts - old_pts;
last_update_it = update_it;
break;
}
new_pts = last_update_it->second.pts;
pts_count += last_update_it->second.pts_count;
++last_update_it;
}
if (last_update_it == update_it) {
// the updates will be applied or skipped later
break;
}
CHECK(old_pts == new_pts - pts_count);
if (pts_count > 0) {
applied_update_count++;
td_->messages_manager_->process_pts_update(std::move(update.update));
old_pts = new_pts;
while (update_it != last_update_it) {
if (update_it->second.pts_count > 0) {
applied_update_count++;
td_->messages_manager_->process_pts_update(std::move(update_it->second.update));
}
update_it->second.promise.set_value(Unit());
update_it = postponed_pts_updates_.erase(update_it);
}
update.promise.set_value(Unit());
postponed_pts_updates_.erase(update_it);
old_pts = new_pts;
}
if (old_pts != initial_pts) {
set_pts(old_pts, "process_postponed_pts_updates")
@ -2131,8 +2153,9 @@ void UpdatesManager::process_postponed_pts_updates() {
}
CHECK(!running_get_difference_);
if (skipped_update_count + applied_update_count > 0) {
VLOG(get_difference) << "After skipping " << skipped_update_count << " and applying " << applied_update_count
<< " postponed updates pts has changed from " << initial_pts << " to " << old_pts;
VLOG(get_difference) << "After skipping " << skipped_update_count << ", applying " << applied_update_count
<< " and keeping " << postponed_updates_.size() << " postponed updates pts has changed from "
<< initial_pts << " to " << old_pts;
}
}