Add base to the repository.

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@8 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 109 insertions, 0 deletions

diff --git a/base/thread_local_storage_unittest.cc b/base/thread_local_storage_unittest.cc
new file mode 100644
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+++ b/base/thread_local_storage_unittest.cc
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+// Copyright 2008, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//    * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//    * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//    * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+#include <windows.h>
+#include <process.h>
+
+#include "base/thread_local_storage.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+// ignore warnings about ptr->int conversions that we use when
+// storing ints into ThreadLocalStorage.
+#pragma warning(disable : 4311 4312)
+
+namespace {
+  class ThreadLocalStorageTest : public testing::Test {
+  };
+}
+
+
+TEST(ThreadLocalStorageTest, Basics) {
+  int index = ThreadLocalStorage::Alloc();
+  ThreadLocalStorage::Set(index, reinterpret_cast<void*>(123));
+  int value = reinterpret_cast<int>(ThreadLocalStorage::Get(index));
+  EXPECT_EQ(value, 123);
+}
+
+const int kInitialTlsValue = 0x5555;
+static int tls_index = 0;
+
+unsigned __stdcall TLSTestThreadMain(void* param) {
+  // param contains the thread local storage index.
+  int *index = reinterpret_cast<int*>(param);
+  *index = kInitialTlsValue;
+
+  ThreadLocalStorage::Set(tls_index, index);
+
+  int *ptr = static_cast<int*>(ThreadLocalStorage::Get(tls_index));
+  EXPECT_EQ(ptr, index);
+  EXPECT_EQ(*ptr, kInitialTlsValue);
+  *index = 0;
+
+  ptr = static_cast<int*>(ThreadLocalStorage::Get(tls_index));
+  EXPECT_EQ(ptr, index);
+  EXPECT_EQ(*ptr, 0);
+  return 0;
+}
+
+void ThreadLocalStorageCleanup(void *value) {
+  int *ptr = reinterpret_cast<int*>(value);
+  if (ptr)
+    *ptr = kInitialTlsValue;
+}
+
+
+TEST(ThreadLocalStorageTest, TLSDestructors) {
+  // Create a TLS index with a destructor.  Create a set of
+  // threads that set the TLS, while the destructor cleans it up.
+  // After the threads finish, verify that the value is cleaned up.
+  const int kNumThreads = 5;
+  HANDLE threads[kNumThreads];
+  int values[kNumThreads];
+
+  tls_index = ThreadLocalStorage::Alloc(ThreadLocalStorageCleanup);
+
+  // Spawn the threads.
+  for (int16 index = 0; index < kNumThreads; index++) {
+    values[index] = kInitialTlsValue;
+    void *argument = static_cast<void*>(&(values[index]));
+    unsigned thread_id;
+    threads[index] = reinterpret_cast<HANDLE>(
+      _beginthreadex(NULL, 0, TLSTestThreadMain, argument, 0, &thread_id));
+    EXPECT_NE(threads[index], (HANDLE)NULL);
+  }
+
+  // Wait for the threads to finish.
+  for (int index = 0; index < kNumThreads; index++) {
+    DWORD rv = WaitForSingleObject(threads[index], 60*1000);
+    EXPECT_EQ(rv, WAIT_OBJECT_0);  // verify all threads finished
+
+    // verify that the destructor was called and that we reset.
+    EXPECT_EQ(values[index], kInitialTlsValue);
+  }
+}