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// Copyright 2016 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "cc/trees/swap_promise_manager.h"
#include <utility>
#include "cc/trees/latency_info_swap_promise_monitor.h"
#include "cc/trees/swap_promise.h"
namespace cc {
SwapPromiseManager::SwapPromiseManager() = default;
SwapPromiseManager::~SwapPromiseManager() {
DCHECK(latency_info_swap_promise_monitors_.empty());
BreakSwapPromises(SwapPromise::COMMIT_FAILS);
}
void SwapPromiseManager::QueueSwapPromise(
std::unique_ptr<SwapPromise> swap_promise) {
DCHECK(swap_promise);
swap_promise_list_.push_back(std::move(swap_promise));
}
void SwapPromiseManager::InsertLatencyInfoSwapPromiseMonitor(
LatencyInfoSwapPromiseMonitor* monitor) {
latency_info_swap_promise_monitors_.insert(monitor);
}
void SwapPromiseManager::RemoveLatencyInfoSwapPromiseMonitor(
LatencyInfoSwapPromiseMonitor* monitor) {
latency_info_swap_promise_monitors_.erase(monitor);
}
void SwapPromiseManager::NotifyLatencyInfoSwapPromiseMonitors() {
for (LatencyInfoSwapPromiseMonitor* monitor :
latency_info_swap_promise_monitors_) {
monitor->OnSetNeedsCommitOnMain();
}
}
void SwapPromiseManager::WillCommit() {
for (const auto& swap_promise : swap_promise_list_)
swap_promise->OnCommit();
}
std::vector<std::unique_ptr<SwapPromise>>
SwapPromiseManager::TakeSwapPromises() {
std::vector<std::unique_ptr<SwapPromise>> result;
result.swap(swap_promise_list_);
return result;
}
void SwapPromiseManager::BreakSwapPromises(
SwapPromise::DidNotSwapReason reason) {
std::vector<std::unique_ptr<SwapPromise>> keep_active_swap_promises;
keep_active_swap_promises.reserve(swap_promise_list_.size());
base::TimeTicks timestamp = base::TimeTicks::Now();
for (auto& swap_promise : swap_promise_list_) {
if (swap_promise->DidNotSwap(reason, timestamp) ==
SwapPromise::DidNotSwapAction::KEEP_ACTIVE) {
keep_active_swap_promises.push_back(std::move(swap_promise));
}
}
swap_promise_list_.swap(keep_active_swap_promises);
}
} // namespace cc
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