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// Copyright 2017 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef V8_WASM_COMPILATION_MANAGER_H_
#define V8_WASM_COMPILATION_MANAGER_H_
#include <unordered_map>
#include "src/handles.h"
#include "src/isolate.h"
namespace v8 {
namespace internal {
namespace wasm {
class AsyncCompileJob;
// The CompilationManager manages a list of active WebAssembly compile jobs. The
// manager owns the memory of the compile jobs and can trigger the abortion of
// compile jobs. If the isolate tears down, the CompilationManager makes sure
// that all compile jobs finish executing before the isolate becomes
// unavailable.
class CompilationManager {
public:
void StartAsyncCompileJob(Isolate* isolate,
std::unique_ptr<byte[]> bytes_copy, size_t length,
Handle<Context> context, Handle<JSPromise> promise);
std::shared_ptr<StreamingDecoder> StartStreamingCompilation(
Isolate* isolate, Handle<Context> context, Handle<JSPromise> promise);
// Remove {job} from the list of active compile jobs.
std::unique_ptr<AsyncCompileJob> RemoveJob(AsyncCompileJob* job);
// Cancel all AsyncCompileJobs and delete their state immediately.
void TearDown();
// Cancel all AsyncCompileJobs so that they are not processed any further,
// but delay the deletion of their state until all tasks accessing the
// AsyncCompileJob finish their execution.
void AbortAllJobs();
// Returns true if at lease one AsyncCompileJob is currently running.
bool HasRunningCompileJob() const { return !jobs_.empty(); }
private:
AsyncCompileJob* CreateAsyncCompileJob(Isolate* isolate,
std::unique_ptr<byte[]> bytes_copy,
size_t length, Handle<Context> context,
Handle<JSPromise> promise);
// We use an AsyncCompileJob as the key for itself so that we can delete the
// job from the map when it is finished.
std::unordered_map<AsyncCompileJob*, std::unique_ptr<AsyncCompileJob>> jobs_;
};
} // namespace wasm
} // namespace internal
} // namespace v8
#endif // V8_WASM_COMPILATION_MANAGER_H_
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