koda@google.com
642ff6ebb4
These 'volatile' modifiers were added to silence warnings about setjmp/longjmp clobbering, but 'const' works too and allows more optimization. TBR=iposva@google.com Review URL: https://codereview.chromium.org//1037333002 git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@44749 260f80e4-7a28-3924-810f-c04153c831b5
31 lines
878 B
C++
31 lines
878 B
C++
// Copyright (c) 2015, the Dart project authors. Please see the AUTHORS file
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// for details. All rights reserved. Use of this source code is governed by a
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// BSD-style license that can be found in the LICENSE file.
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#include "vm/thread.h"
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#include "vm/isolate.h"
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#include "vm/os_thread.h"
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namespace dart {
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// The single thread local key which stores all the thread local data
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// for a thread.
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// TODO(koda): Can we merge this with ThreadInterrupter::thread_state_key_?
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ThreadLocalKey Thread::thread_key_ = OSThread::kUnsetThreadLocalKey;
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void Thread::InitOnce() {
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ASSERT(thread_key_ == OSThread::kUnsetThreadLocalKey);
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thread_key_ = OSThread::CreateThreadLocal();
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ASSERT(thread_key_ != OSThread::kUnsetThreadLocalKey);
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}
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void Thread::SetCurrent(Thread* current) {
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OSThread::SetThreadLocal(thread_key_, reinterpret_cast<uword>(current));
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}
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} // namespace dart
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