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// Copyright Epic Games, Inc. All Rights Reserved.
#pragma once
#include "localrunner.h"
#if ZEN_WITH_COMPUTE_SERVICES
# include <zenutil/process/subprocessmanager.h>
# include <memory>
namespace asio {
class io_context;
}
namespace zen::compute {
/** Cross-platform process runner backed by SubprocessManager.
Subclasses LocalProcessRunner, reusing sandbox management, worker manifesting,
input/output handling, and shared action preparation. Replaces the polling-based
monitor thread with async exit callbacks driven by SubprocessManager, and
delegates CPU/memory metrics sampling to the manager's built-in round-robin
sampler.
A ProcessGroup (backed by a JobObject on Windows, process group on POSIX) is
used for bulk cancellation on shutdown.
This runner does not perform any platform-specific sandboxing (AppContainer,
namespaces, Seatbelt). It is intended as a simpler, cross-platform alternative
to the platform-specific runners for non-sandboxed workloads.
*/
class ManagedProcessRunner : public LocalProcessRunner
{
public:
ManagedProcessRunner(ChunkResolver& Resolver,
const std::filesystem::path& BaseDir,
DeferredDirectoryDeleter& Deleter,
WorkerThreadPool& WorkerPool,
int32_t MaxConcurrentActions = 0);
~ManagedProcessRunner();
void Shutdown() override;
[[nodiscard]] SubmitResult SubmitAction(Ref<RunnerAction> Action) override;
void CancelRunningActions() override;
bool CancelAction(int ActionLsn) override;
[[nodiscard]] bool IsHealthy() override { return true; }
private:
static constexpr int kIoThreadCount = 4;
// Exit callback posted on an io_context thread.
void OnProcessExit(int ActionLsn, int ExitCode);
std::unique_ptr<asio::io_context> m_IoContext;
std::unique_ptr<SubprocessManager> m_SubprocessManager;
ProcessGroup* m_ProcessGroup = nullptr;
std::vector<std::thread> m_IoThreads;
};
} // namespace zen::compute
#endif
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