[platform] Implement a worker pool

test/cctest/test-libplatform-worker-thread.cc

Index: test/cctest/test-libplatform-worker-thread.cc
diff --git a/test/cctest/test-cpu.cc b/test/cctest/test-libplatform-worker-thread.cc
similarity index 68%
copy from test/cctest/test-cpu.cc
copy to test/cctest/test-libplatform-worker-thread.cc
index 06966c68c86296e510edb8899f4d7deb0343f108..60856a6d55340e9526e6d190e5cf55f111b04c41 100644
--- a/test/cctest/test-cpu.cc
+++ b/test/cctest/test-libplatform-worker-thread.cc
@@ -28,28 +28,37 @@
 #include "v8.h"
 
 #include "cctest.h"
-#include "cpu.h"
+#include "libplatform/task-queue.h"
+#include "libplatform/worker-thread.h"
+#include "test-libplatform.h"
 
 using namespace v8::internal;
 
 
-TEST(FeatureImplications) {
-  // Test for features implied by other features.
-  CPU cpu;
+TEST(WorkerThread) {
+  TaskQueue queue;
+  int task_counter = 0;
 
-  // ia32 and x64 features
-  CHECK(!cpu.has_sse() || cpu.has_mmx());
-  CHECK(!cpu.has_sse2() || cpu.has_sse());
-  CHECK(!cpu.has_sse3() || cpu.has_sse2());
-  CHECK(!cpu.has_ssse3() || cpu.has_sse3());
-  CHECK(!cpu.has_sse41() || cpu.has_sse3());
-  CHECK(!cpu.has_sse42() || cpu.has_sse41());
+  TestTask* task1 = new TestTask(&task_counter, true);
+  TestTask* task2 = new TestTask(&task_counter, true);
+  TestTask* task3 = new TestTask(&task_counter, true);
+  TestTask* task4 = new TestTask(&task_counter, true);
 
-  // arm features
-  CHECK(!cpu.has_vfp3_d32() || cpu.has_vfp3());
-}
+  WorkerThread* thread1 = new WorkerThread(&queue);
+  WorkerThread* thread2 = new WorkerThread(&queue);
+
+  CHECK_EQ(4, task_counter);
+
+  queue.Append(task1);
+  queue.Append(task2);
+  queue.Append(task3);
+  queue.Append(task4);
+
+  // TaskQueue ASSERTs that it is empty in its dtor.
+  queue.Terminate();
 
+  delete thread1;
+  delete thread2;
 
-TEST(NumberOfProcessorsOnline) {
-  CHECK_GT(CPU::NumberOfProcessorsOnline(), 0);
+  CHECK_EQ(0, task_counter);
 }