[Compiler] Avoid blocking on inner function parallel compilation.

src/compiler-dispatcher/compiler-dispatcher.h

 // Copyright 2016 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_COMPILER_DISPATCHER_COMPILER_DISPATCHER_H_
 #define V8_COMPILER_DISPATCHER_COMPILER_DISPATCHER_H_
 
 #include <map>
 #include <memory>
 #include <unordered_set>
@@ skipping 66 matching lines @@
   // Enqueue a job for parse and compile. Returns true if a job was enqueued.
   bool Enqueue(Handle<SharedFunctionInfo> function);
 
   // Like Enqueue, but also advances the job so that it can potentially
   // continue running on a background thread (if at all possible). Returns
   // true if the job was enqueued.
   bool EnqueueAndStep(Handle<SharedFunctionInfo> function);
 
   // Enqueue a job for compilation. Function must have already been parsed and
   // analyzed and be ready for compilation. Returns true if a job was enqueued.
-  bool Enqueue(Handle<SharedFunctionInfo> function, FunctionLiteral* literal,
-               std::shared_ptr<Zone> parse_zone,
+  bool Enqueue(Handle<Script> script, Handle<SharedFunctionInfo> function,
+               FunctionLiteral* literal, std::shared_ptr<Zone> parse_zone,
                std::shared_ptr<DeferredHandles> parse_handles,
                std::shared_ptr<DeferredHandles> compile_handles);
 
   // Like Enqueue, but also advances the job so that it can potentially
   // continue running on a background thread (if at all possible). Returns
   // true if the job was enqueued.
-  bool EnqueueAndStep(Handle<SharedFunctionInfo> function,
+  bool EnqueueAndStep(Handle<Script> script,
+                      Handle<SharedFunctionInfo> function,
                       FunctionLiteral* literal,
                       std::shared_ptr<Zone> parse_zone,
                       std::shared_ptr<DeferredHandles> parse_handles,
                       std::shared_ptr<DeferredHandles> compile_handles);
 
   // Returns true if there is a pending job for the given function.
   bool IsEnqueued(Handle<SharedFunctionInfo> function) const;
 
   // Blocks until the given function is compiled (and does so as fast as
   // possible). Returns true if the compile job was successful.
   bool FinishNow(Handle<SharedFunctionInfo> function);
 
-  // Blocks until all enqueued jobs have finished. Returns true if all the
-  // compile jobs were successful.
-  bool FinishAllNow();
-
   // Aborts a given job. Blocks if requested.
   void Abort(Handle<SharedFunctionInfo> function, BlockingBehavior blocking);
 
   // Aborts all jobs. Blocks if requested.
   void AbortAll(BlockingBehavior blocking);
 
   // Memory pressure notifications from the embedder.
   void MemoryPressureNotification(v8::MemoryPressureLevel level,
                                   bool is_isolate_locked);
 
@@ skipping 12 matching lines @@
                         std::unique_ptr<CompilerDispatcherJob>>
       JobMap;
   class AbortTask;
   class BackgroundTask;
   class IdleTask;
 
   void WaitForJobIfRunningOnBackground(CompilerDispatcherJob* job);
   void AbortInactiveJobs();
   bool CanEnqueue(Handle<SharedFunctionInfo> function);
   JobMap::const_iterator GetJobFor(Handle<SharedFunctionInfo> shared) const;
-  bool FinishNow(CompilerDispatcherJob* job);
   void ConsiderJobForBackgroundProcessing(CompilerDispatcherJob* job);
   void ScheduleMoreBackgroundTasksIfNeeded();
   void ScheduleIdleTaskFromAnyThread();
   void ScheduleIdleTaskIfNeeded();
   void ScheduleAbortTask();
   void DoBackgroundWork();
   void DoIdleWork(double deadline_in_seconds);
 
   Isolate* isolate_;
   Platform* platform_;
@@ skipping 40 matching lines @@
   base::AtomicValue<bool> block_for_testing_;
   base::Semaphore semaphore_for_testing_;
 
   DISALLOW_COPY_AND_ASSIGN(CompilerDispatcher);
 };
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_COMPILER_DISPATCHER_COMPILER_DISPATCHER_H_