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// Copyright 2024 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef GPU_COMMAND_BUFFER_SERVICE_BLOCKING_SEQUENCE_RUNNER_H_
#define GPU_COMMAND_BUFFER_SERVICE_BLOCKING_SEQUENCE_RUNNER_H_
#include <vector>
#include "base/memory/raw_ptr.h"
#include "base/synchronization/lock.h"
#include "base/thread_annotations.h"
#include "base/time/time.h"
#include "gpu/command_buffer/common/sync_token.h"
#include "gpu/command_buffer/service/gpu_command_buffer_service_export.h"
#include "gpu/command_buffer/service/sequence_id.h"
#include "gpu/command_buffer/service/task_graph.h"
namespace gpu {
class Scheduler;
// BlockingSequenceRunner owns a TaskGraph::Sequence and supports running
// its tasks blockingly.
class GPU_COMMAND_BUFFER_SERVICE_EXPORT BlockingSequenceRunner {
public:
explicit BlockingSequenceRunner(Scheduler* scheduler) LOCKS_EXCLUDED(lock());
BlockingSequenceRunner(const BlockingSequenceRunner&) = delete;
BlockingSequenceRunner& operator=(const BlockingSequenceRunner&) = delete;
~BlockingSequenceRunner() LOCKS_EXCLUDED(lock());
SequenceId GetSequenceId() const;
bool HasTasks() const LOCKS_EXCLUDED(lock());
uint32_t AddTask(TaskCallback task_calback,
std::vector<SyncToken> wait_fences,
const SyncToken& release,
ReportingCallback report_callback = {})
LOCKS_EXCLUDED(lock());
uint32_t AddTask(base::OnceClosure task_closure,
std::vector<SyncToken> wait_fences,
const SyncToken& release,
ReportingCallback report_callback = {})
LOCKS_EXCLUDED(lock());
[[nodiscard]] ScopedSyncPointClientState CreateSyncPointClientState(
CommandBufferNamespace namespace_id,
CommandBufferId command_buffer_id) LOCKS_EXCLUDED(lock());
// Runs tasks in the sequence blockingly until the sequence is empty.
void RunAllTasks() LOCKS_EXCLUDED(lock());
private:
class Sequence : public TaskGraph::Sequence {
public:
explicit Sequence(Scheduler* scheduler);
void RunAllTasks() EXCLUSIVE_LOCKS_REQUIRED(lock());
private:
const raw_ptr<Scheduler> scheduler_ = nullptr;
};
base::Lock& lock() const LOCK_RETURNED(task_graph_->lock()) {
return task_graph_->lock();
}
const raw_ptr<TaskGraph> task_graph_ = nullptr;
raw_ptr<Sequence> sequence_ = nullptr;
};
} // namespace gpu
#endif // GPU_COMMAND_BUFFER_SERVICE_BLOCKING_SEQUENCE_RUNNER_H_
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