Split out libplatform into a separate libary

src/v8.cc

 // Copyright 2012 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.
 
 #include "src/v8.h"
 
 #include "src/assembler.h"
 #include "src/base/once.h"
 #include "src/base/platform/platform.h"
 #include "src/bootstrapper.h"
 #include "src/debug.h"
 #include "src/deoptimizer.h"
 #include "src/elements.h"
 #include "src/frames.h"
 #include "src/heap-profiler.h"
 #include "src/hydrogen.h"
 #include "src/isolate.h"
-#ifdef V8_USE_DEFAULT_PLATFORM
-#include "src/libplatform/default-platform.h"
-#endif
 #include "src/lithium-allocator.h"
 #include "src/objects.h"
 #include "src/runtime-profiler.h"
 #include "src/sampler.h"
 #include "src/serialize.h"
 #include "src/store-buffer.h"
 
 namespace v8 {
 namespace internal {
 
 V8_DECLARE_ONCE(init_once);
 
 v8::ArrayBuffer::Allocator* V8::array_buffer_allocator_ = NULL;
 v8::Platform* V8::platform_ = NULL;
 
 
 bool V8::Initialize(Deserializer* des) {
   InitializeOncePerProcess();
   Isolate* isolate = Isolate::UncheckedCurrent();
   if (isolate == NULL) return true;
   if (isolate->IsDead()) return false;
   if (isolate->IsInitialized()) return true;
 
-#ifdef V8_USE_DEFAULT_PLATFORM
-  platform::DefaultPlatform* platform =
-      static_cast<platform::DefaultPlatform*>(platform_);
-  platform->SetThreadPoolSize(isolate->max_available_threads());
-  // We currently only start the threads early, if we know that we'll use them.
-  if (FLAG_job_based_sweeping) platform->EnsureInitialized();
-#endif
-
   return isolate->Init(des);
 }
 
 
 void V8::TearDown() {
   Bootstrapper::TearDownExtensions();
   ElementsAccessor::TearDown();
   LOperand::TearDownCaches();
   ExternalReference::TearDownMathExpData();
   RegisteredExtension::UnregisterAll();
   Isolate::GlobalTearDown();
 
   Sampler::TearDown();
-
-#ifdef V8_USE_DEFAULT_PLATFORM
-  platform::DefaultPlatform* platform =
-      static_cast<platform::DefaultPlatform*>(platform_);
-  platform_ = NULL;
-  delete platform;
-#endif
 }
 
 
 void V8::SetReturnAddressLocationResolver(
       ReturnAddressLocationResolver resolver) {
   StackFrame::SetReturnAddressLocationResolver(resolver);
 }
 
 
 void V8::InitializeOncePerProcessImpl() {
   FlagList::EnforceFlagImplications();
 
   if (FLAG_predictable && FLAG_random_seed == 0) {
     // Avoid random seeds in predictable mode.
     FLAG_random_seed = 12347;
   }
 
   if (FLAG_stress_compaction) {
     FLAG_force_marking_deque_overflows = true;
     FLAG_gc_global = true;
     FLAG_max_semi_space_size = 1;
   }
 
   base::OS::Initialize(FLAG_random_seed, FLAG_hard_abort, FLAG_gc_fake_mmap);
 
-#ifdef V8_USE_DEFAULT_PLATFORM
-  platform_ = new platform::DefaultPlatform;
-#endif
   Sampler::SetUp();
   CpuFeatures::Probe(false);
   init_memcopy_functions();
   // The custom exp implementation needs 16KB of lookup data; initialize it
   // on demand.
   init_fast_sqrt_function();
 #ifdef _WIN64
   init_modulo_function();
 #endif
   ElementsAccessor::InitializeOncePerProcess();
@@ skipping 21 matching lines @@
   platform_ = NULL;
 }
 
 
 v8::Platform* V8::GetCurrentPlatform() {
   ASSERT(platform_);
   return platform_;
 }
 
 } }  // namespace v8::internal