8fefc769f5
The debug message thread was introduced to make it possible to have the message handler callback be called from a different thread than the thread running V8 where the debug event occoured, but it never had any practical use, and prevents providing information to the message handler which is only available from the V8 thread. In the future any thread decoupling will have do be done by the embedder. This also removes the queue used for outbound messages. Renamed the class Message to CommandMessage as it is only used for debugger commands from the client. Related message queue classes has also been renamed. Review URL: http://codereview.chromium.org/93118 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@1788 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
121 lines
3.6 KiB
C++
121 lines
3.6 KiB
C++
// Copyright 2006-2008 the V8 project authors. All rights reserved.
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are
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// met:
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//
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// * Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above
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// copyright notice, this list of conditions and the following
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// disclaimer in the documentation and/or other materials provided
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// with the distribution.
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// * Neither the name of Google Inc. nor the names of its
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// contributors may be used to endorse or promote products derived
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// from this software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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#include "v8.h"
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#include "bootstrapper.h"
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#include "debug.h"
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#include "serialize.h"
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#include "stub-cache.h"
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#include "oprofile-agent.h"
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namespace v8 { namespace internal {
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bool V8::has_been_setup_ = false;
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bool V8::has_been_disposed_ = false;
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bool V8::Initialize(Deserializer *des) {
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bool create_heap_objects = des == NULL;
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if (HasBeenDisposed()) return false;
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if (HasBeenSetup()) return true;
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has_been_setup_ = true;
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#ifdef DEBUG
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// The initialization process does not handle memory exhaustion.
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DisallowAllocationFailure disallow_allocation_failure;
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#endif
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// Enable logging before setting up the heap
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Logger::Setup();
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if (des) des->GetLog();
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// Setup the platform OS support.
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OS::Setup();
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// Setup the object heap
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ASSERT(!Heap::HasBeenSetup());
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if (!Heap::Setup(create_heap_objects)) {
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has_been_setup_ = false;
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return false;
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}
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// Initialize other runtime facilities
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Bootstrapper::Initialize(create_heap_objects);
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Builtins::Setup(create_heap_objects);
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Top::Initialize();
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if (FLAG_preemption) {
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v8::Locker locker;
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v8::Locker::StartPreemption(100);
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}
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#ifdef ENABLE_DEBUGGER_SUPPORT
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Debug::Setup(create_heap_objects);
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#endif
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StubCache::Initialize(create_heap_objects);
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// If we are deserializing, read the state into the now-empty heap.
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if (des != NULL) {
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des->Deserialize();
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StubCache::Clear();
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}
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// Setup the CPU support. Must be done after heap setup and after
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// any deserialization because we have to have the initial heap
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// objects in place for creating the code object used for probing.
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CPU::Setup();
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OProfileAgent::Initialize();
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return true;
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}
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void V8::TearDown() {
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if (HasBeenDisposed()) return;
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if (!HasBeenSetup()) return;
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OProfileAgent::TearDown();
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if (FLAG_preemption) {
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v8::Locker locker;
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v8::Locker::StopPreemption();
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}
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Builtins::TearDown();
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Bootstrapper::TearDown();
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Top::TearDown();
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Heap::TearDown();
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Logger::TearDown();
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has_been_setup_ = false;
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has_been_disposed_ = true;
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}
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} } // namespace v8::internal
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