Line data    Source code

       1             : // Copyright 2017 the V8 project authors. All rights reserved.
       2             : // Use of this source code is governed by a BSD-style license that can be
       3             : // found in the LICENSE file.
       4             : 
       5             : #ifndef V8_WASM_COMPILATION_MANAGER_H_
       6             : #define V8_WASM_COMPILATION_MANAGER_H_
       7             : 
       8             : #include <vector>
       9             : 
      10             : #include "src/handles.h"
      11             : #include "src/isolate.h"
      12             : #include "src/wasm/module-compiler.h"
      13             : 
      14             : namespace v8 {
      15             : namespace internal {
      16             : namespace wasm {
      17             : 
      18             : // The CompilationManager manages a list of active WebAssembly compile jobs. The
      19             : // manager owns the memory of the compile jobs and can trigger the abortion of
      20             : // compile jobs. If the isolate tears down, the CompilationManager makes sure
      21             : // that all compile jobs finish executing before the isolate becomes
      22             : // unavailable.
      23       54999 : class CompilationManager {
      24             :  public:
      25             :   void StartAsyncCompileJob(Isolate* isolate,
      26             :                             std::unique_ptr<byte[]> bytes_copy, size_t length,
      27             :                             Handle<Context> context, Handle<JSPromise> promise);
      28             : 
      29             :   std::shared_ptr<StreamingDecoder> StartStreamingCompilation(
      30             :       Isolate* isolate, Handle<Context> context, Handle<JSPromise> promise);
      31             : 
      32             :   // Removes {job} from the list of active compile jobs.
      33             :   std::shared_ptr<AsyncCompileJob> RemoveJob(AsyncCompileJob* job);
      34             : 
      35             :   void TearDown();
      36             : 
      37             :  private:
      38             :   AsyncCompileJob* CreateAsyncCompileJob(Isolate* isolate,
      39             :                                          std::unique_ptr<byte[]> bytes_copy,
      40             :                                          size_t length, Handle<Context> context,
      41             :                                          Handle<JSPromise> promise);
      42             : 
      43             :   // We use an AsyncCompileJob as the key for itself so that we can delete the
      44             :   // job from the map when it is finished.
      45             :   std::unordered_map<AsyncCompileJob*, std::shared_ptr<AsyncCompileJob>> jobs_;
      46             : };
      47             : 
      48             : }  // namespace wasm
      49             : }  // namespace internal
      50             : }  // namespace v8
      51             : 
      52             : #endif  // V8_WASM_COMPILATION_MANAGER_H_