963a75cc09
This patch adds common infrastructure for fast TLS support and
implementation on win32. More implementations will be added soon.
Fast TLS is controlled by V8_FAST_TLS define which is enabled by
default in our gyp and scons builds. The scons build has
fasttls={on,off} option so that we can see the effects of slow TLS
when needed.
Review URL: http://codereview.chromium.org/6696112
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7375 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
67 lines
1.6 KiB
C++
67 lines
1.6 KiB
C++
// Copyright 2011 the V8 project authors. All rights reserved.
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//
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// Tests of fast TLS support.
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#include "v8.h"
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#include "cctest.h"
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#include "checks.h"
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#include "platform.h"
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using v8::internal::Thread;
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static const int kValueCount = 128;
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static Thread::LocalStorageKey keys[kValueCount];
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static void* GetValue(int num) {
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return reinterpret_cast<void*>(static_cast<intptr_t>(num + 1));
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}
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static void DoTest() {
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for (int i = 0; i < kValueCount; i++) {
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CHECK(!Thread::HasThreadLocal(keys[i]));
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}
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for (int i = 0; i < kValueCount; i++) {
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Thread::SetThreadLocal(keys[i], GetValue(i));
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}
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for (int i = 0; i < kValueCount; i++) {
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CHECK(Thread::HasThreadLocal(keys[i]));
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}
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for (int i = 0; i < kValueCount; i++) {
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CHECK_EQ(GetValue(i), Thread::GetThreadLocal(keys[i]));
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CHECK_EQ(GetValue(i), Thread::GetExistingThreadLocal(keys[i]));
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}
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for (int i = 0; i < kValueCount; i++) {
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Thread::SetThreadLocal(keys[i], GetValue(kValueCount - i - 1));
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}
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for (int i = 0; i < kValueCount; i++) {
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CHECK(Thread::HasThreadLocal(keys[i]));
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}
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for (int i = 0; i < kValueCount; i++) {
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CHECK_EQ(GetValue(kValueCount - i - 1),
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Thread::GetThreadLocal(keys[i]));
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CHECK_EQ(GetValue(kValueCount - i - 1),
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Thread::GetExistingThreadLocal(keys[i]));
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}
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}
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class TestThread : public Thread {
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public:
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TestThread() : Thread(NULL, "TestThread") {}
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virtual void Run() {
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DoTest();
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}
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};
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TEST(FastTLS) {
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for (int i = 0; i < kValueCount; i++) {
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keys[i] = Thread::CreateThreadLocalKey();
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}
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DoTest();
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TestThread thread;
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thread.Start();
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thread.Join();
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}
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