sandbox/win/src/threadpool_unittest.cc

   1 // Copyright (c) 2006-2008 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "sandbox/win/src/win2k_threadpool.h"
   6 #include "testing/gtest/include/gtest/gtest.h"
   7
   8 void __stdcall EmptyCallBack(void*, unsigned char) {
   9 }
  10
  11 void __stdcall TestCallBack(void* context, unsigned char) {
  12   HANDLE event = reinterpret_cast<HANDLE>(context);
  13   ::SetEvent(event);
  14 }
  15
  16 namespace sandbox {
  17
  18 // Test that register and unregister work, part 1.
  19 TEST(IPCTest, ThreadPoolRegisterTest1) {
  20   Win2kThreadPool thread_pool;
  21
  22   EXPECT_EQ(0, thread_pool.OutstandingWaits());
  23
  24   HANDLE event1 = ::CreateEventW(NULL, FALSE, FALSE, NULL);
  25   HANDLE event2 = ::CreateEventW(NULL, FALSE, FALSE, NULL);
  26
  27   uint32 context = 0;
  28   EXPECT_FALSE(thread_pool.RegisterWait(0, event1, EmptyCallBack, &context));
  29   EXPECT_EQ(0, thread_pool.OutstandingWaits());
  30
  31   EXPECT_TRUE(thread_pool.RegisterWait(this, event1, EmptyCallBack, &context));
  32   EXPECT_EQ(1, thread_pool.OutstandingWaits());
  33   EXPECT_TRUE(thread_pool.RegisterWait(this, event2, EmptyCallBack, &context));
  34   EXPECT_EQ(2, thread_pool.OutstandingWaits());
  35
  36   EXPECT_TRUE(thread_pool.UnRegisterWaits(this));
  37   EXPECT_EQ(0, thread_pool.OutstandingWaits());
  38
  39   EXPECT_EQ(TRUE, ::CloseHandle(event1));
  40   EXPECT_EQ(TRUE, ::CloseHandle(event2));
  41 }
  42
  43 // Test that register and unregister work, part 2.
  44 TEST(IPCTest, ThreadPoolRegisterTest2) {
  45   Win2kThreadPool thread_pool;
  46
  47   HANDLE event1 = ::CreateEventW(NULL, FALSE, FALSE, NULL);
  48   HANDLE event2 = ::CreateEventW(NULL, FALSE, FALSE, NULL);
  49
  50   uint32 context = 0;
  51   uint32 c1 = 0;
  52   uint32 c2 = 0;
  53
  54   EXPECT_TRUE(thread_pool.RegisterWait(&c1, event1, EmptyCallBack, &context));
  55   EXPECT_EQ(1, thread_pool.OutstandingWaits());
  56   EXPECT_TRUE(thread_pool.RegisterWait(&c2, event2, EmptyCallBack, &context));
  57   EXPECT_EQ(2, thread_pool.OutstandingWaits());
  58
  59   EXPECT_TRUE(thread_pool.UnRegisterWaits(&c2));
  60   EXPECT_EQ(1, thread_pool.OutstandingWaits());
  61   EXPECT_TRUE(thread_pool.UnRegisterWaits(&c2));
  62   EXPECT_EQ(1, thread_pool.OutstandingWaits());
  63
  64   EXPECT_TRUE(thread_pool.UnRegisterWaits(&c1));
  65   EXPECT_EQ(0, thread_pool.OutstandingWaits());
  66
  67   EXPECT_EQ(TRUE, ::CloseHandle(event1));
  68   EXPECT_EQ(TRUE, ::CloseHandle(event2));
  69 }
  70
  71 // Test that the thread pool has at least a thread that services an event.
  72 // Test that when the event is un-registered is no longer serviced.
  73 TEST(IPCTest, ThreadPoolSignalAndWaitTest) {
  74   Win2kThreadPool thread_pool;
  75
  76   // The events are auto reset and start not signaled.
  77   HANDLE event1 = ::CreateEventW(NULL, FALSE, FALSE, NULL);
  78   HANDLE event2 = ::CreateEventW(NULL, FALSE, FALSE, NULL);
  79
  80   EXPECT_TRUE(thread_pool.RegisterWait(this, event1, TestCallBack, event2));
  81
  82   EXPECT_EQ(WAIT_OBJECT_0, ::SignalObjectAndWait(event1, event2, 5000, FALSE));
  83   EXPECT_EQ(WAIT_OBJECT_0, ::SignalObjectAndWait(event1, event2, 5000, FALSE));
  84
  85   EXPECT_TRUE(thread_pool.UnRegisterWaits(this));
  86   EXPECT_EQ(0, thread_pool.OutstandingWaits());
  87
  88   EXPECT_EQ(WAIT_TIMEOUT, ::SignalObjectAndWait(event1, event2, 1000, FALSE));
  89
  90   EXPECT_EQ(TRUE, ::CloseHandle(event1));
  91   EXPECT_EQ(TRUE, ::CloseHandle(event2));
  92 }
  93
  94 }  // namespace sandbox