| // Copyright (c) 2006-2008 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include <process.h> |
| #include <windows.h> |
| |
| #include "base/multiprocess_test.h" |
| #include "base/stats_table.h" |
| #include "base/stats_counters.h" |
| #include "base/string_util.h" |
| #include "testing/gtest/include/gtest/gtest.h" |
| |
| namespace { |
| class StatsTableTest : public MultiProcessTest { |
| }; |
| } |
| |
| // Open a StatsTable and verify that we can write to each of the |
| // locations in the table. |
| TEST_F(StatsTableTest, VerifySlots) { |
| const std::wstring kTableName = L"VerifySlotsStatTable"; |
| const int kMaxThreads = 1; |
| const int kMaxCounter = 5; |
| StatsTable table(kTableName, kMaxThreads, kMaxCounter); |
| |
| // Register a single thread. |
| std::wstring thread_name = L"mainThread"; |
| int slot_id = table.RegisterThread(thread_name); |
| EXPECT_TRUE(slot_id); |
| |
| // Fill up the table with counters. |
| std::wstring counter_base_name = L"counter"; |
| for (int index=0; index < kMaxCounter; index++) { |
| std::wstring counter_name = counter_base_name; |
| StringAppendF(&counter_name, L"counter.ctr%d", index); |
| int counter_id = table.FindCounter(counter_name); |
| EXPECT_GT(counter_id, 0); |
| } |
| |
| // Try to allocate an additional thread. Verify it fails. |
| slot_id = table.RegisterThread(L"too many threads"); |
| EXPECT_EQ(slot_id, 0); |
| |
| // Try to allocate an additional counter. Verify it fails. |
| int counter_id = table.FindCounter(counter_base_name); |
| EXPECT_EQ(counter_id, 0); |
| } |
| |
| // CounterZero will continually be set to 0. |
| const std::wstring kCounterZero = L"CounterZero"; |
| // Counter1313 will continually be set to 1313. |
| const std::wstring kCounter1313 = L"Counter1313"; |
| // CounterIncrement will be incremented each time. |
| const std::wstring kCounterIncrement = L"CounterIncrement"; |
| // CounterDecrement will be decremented each time. |
| const std::wstring kCounterDecrement = L"CounterDecrement"; |
| // CounterMixed will be incremented by odd numbered threads and |
| // decremented by even threads. |
| const std::wstring kCounterMixed = L"CounterMixed"; |
| // The number of thread loops that we will do. |
| const int kThreadLoops = 1000; |
| |
| unsigned __stdcall StatsTableMultipleThreadMain(void* param) { |
| // Each thread will open the shared memory and set counters |
| // concurrently in a loop. We'll use some pauses to |
| // mixup the thread scheduling. |
| int16 id = reinterpret_cast<int16>(param); |
| |
| StatsCounter zero_counter(kCounterZero); |
| StatsCounter lucky13_counter(kCounter1313); |
| StatsCounter increment_counter(kCounterIncrement); |
| StatsCounter decrement_counter(kCounterDecrement); |
| for (int index = 0; index < kThreadLoops; index++) { |
| StatsCounter mixed_counter(kCounterMixed); // create this one in the loop |
| zero_counter.Set(0); |
| lucky13_counter.Set(1313); |
| increment_counter.Increment(); |
| decrement_counter.Decrement(); |
| if (id % 2) |
| mixed_counter.Decrement(); |
| else |
| mixed_counter.Increment(); |
| Sleep(index % 10); // short wait |
| } |
| return 0; |
| } |
| // Create a few threads and have them poke on their counters. |
| TEST_F(StatsTableTest, MultipleThreads) { |
| // Create a stats table. |
| const std::wstring kTableName = L"MultipleThreadStatTable"; |
| const int kMaxThreads = 20; |
| const int kMaxCounter = 5; |
| StatsTable table(kTableName, kMaxThreads, kMaxCounter); |
| StatsTable::set_current(&table); |
| |
| EXPECT_EQ(0, table.CountThreadsRegistered()); |
| |
| // Spin up a set of threads to go bang on the various counters. |
| // After we join the threads, we'll make sure the counters |
| // contain the values we expected. |
| HANDLE threads[kMaxThreads]; |
| |
| // Spawn the threads. |
| for (int16 index = 0; index < kMaxThreads; index++) { |
| void* argument = reinterpret_cast<void*>(index); |
| unsigned thread_id; |
| threads[index] = reinterpret_cast<HANDLE>( |
| _beginthreadex(NULL, 0, StatsTableMultipleThreadMain, argument, 0, |
| &thread_id)); |
| EXPECT_NE((HANDLE)NULL, threads[index]); |
| } |
| |
| // Wait for the threads to finish. |
| for (int index = 0; index < kMaxThreads; index++) { |
| DWORD rv = WaitForSingleObject(threads[index], 60 * 1000); |
| EXPECT_EQ(rv, WAIT_OBJECT_0); // verify all threads finished |
| } |
| StatsCounter zero_counter(kCounterZero); |
| StatsCounter lucky13_counter(kCounter1313); |
| StatsCounter increment_counter(kCounterIncrement); |
| StatsCounter decrement_counter(kCounterDecrement); |
| StatsCounter mixed_counter(kCounterMixed); |
| |
| // Verify the various counters are correct. |
| std::wstring name; |
| name = L"c:" + kCounterZero; |
| EXPECT_EQ(0, table.GetCounterValue(name)); |
| name = L"c:" + kCounter1313; |
| EXPECT_EQ(1313 * kMaxThreads, |
| table.GetCounterValue(name)); |
| name = L"c:" + kCounterIncrement; |
| EXPECT_EQ(kMaxThreads * kThreadLoops, |
| table.GetCounterValue(name)); |
| name = L"c:" + kCounterDecrement; |
| EXPECT_EQ(-kMaxThreads * kThreadLoops, |
| table.GetCounterValue(name)); |
| name = L"c:" + kCounterMixed; |
| EXPECT_EQ((kMaxThreads % 2) * kThreadLoops, |
| table.GetCounterValue(name)); |
| EXPECT_EQ(0, table.CountThreadsRegistered()); |
| } |
| |
| const std::wstring kTableName = L"MultipleProcessStatTable"; |
| |
| extern "C" int __declspec(dllexport) ChildProcessMain() { |
| // Each process will open the shared memory and set counters |
| // concurrently in a loop. We'll use some pauses to |
| // mixup the scheduling. |
| |
| StatsTable table(kTableName, 0, 0); |
| StatsTable::set_current(&table); |
| StatsCounter zero_counter(kCounterZero); |
| StatsCounter lucky13_counter(kCounter1313); |
| StatsCounter increment_counter(kCounterIncrement); |
| StatsCounter decrement_counter(kCounterDecrement); |
| for (int index = 0; index < kThreadLoops; index++) { |
| zero_counter.Set(0); |
| lucky13_counter.Set(1313); |
| increment_counter.Increment(); |
| decrement_counter.Decrement(); |
| Sleep(index % 10); // short wait |
| } |
| return 0; |
| } |
| |
| // Create a few threads and have them poke on their counters. |
| TEST_F(StatsTableTest, MultipleProcesses) { |
| // Create a stats table. |
| const std::wstring kTableName = L"MultipleProcessStatTable"; |
| const int kMaxThreads = 20; |
| const int kMaxCounter = 5; |
| StatsTable table(kTableName, kMaxThreads, kMaxCounter); |
| StatsTable::set_current(&table); |
| |
| EXPECT_EQ(0, table.CountThreadsRegistered()); |
| |
| // Spin up a set of threads to go bang on the various counters. |
| // After we join the threads, we'll make sure the counters |
| // contain the values we expected. |
| HANDLE threads[kMaxThreads]; |
| |
| // Spawn the processes. |
| for (int16 index = 0; index < kMaxThreads; index++) { |
| threads[index] = this->SpawnChild(L"ChildProcessMain"); |
| EXPECT_NE((HANDLE)NULL, threads[index]); |
| } |
| |
| // Wait for the threads to finish. |
| for (int index = 0; index < kMaxThreads; index++) { |
| DWORD rv = WaitForSingleObject(threads[index], 60 * 1000); |
| EXPECT_EQ(rv, WAIT_OBJECT_0); // verify all threads finished |
| } |
| StatsCounter zero_counter(kCounterZero); |
| StatsCounter lucky13_counter(kCounter1313); |
| StatsCounter increment_counter(kCounterIncrement); |
| StatsCounter decrement_counter(kCounterDecrement); |
| |
| // Verify the various counters are correct. |
| std::wstring name; |
| name = L"c:" + kCounterZero; |
| EXPECT_EQ(0, table.GetCounterValue(name)); |
| name = L"c:" + kCounter1313; |
| EXPECT_EQ(1313 * kMaxThreads, |
| table.GetCounterValue(name)); |
| name = L"c:" + kCounterIncrement; |
| EXPECT_EQ(kMaxThreads * kThreadLoops, |
| table.GetCounterValue(name)); |
| name = L"c:" + kCounterDecrement; |
| EXPECT_EQ(-kMaxThreads * kThreadLoops, |
| table.GetCounterValue(name)); |
| EXPECT_EQ(0, table.CountThreadsRegistered()); |
| } |
| |
| class MockStatsCounter : public StatsCounter { |
| public: |
| MockStatsCounter(const std::wstring& name) |
| : StatsCounter(name) {} |
| int* Pointer() { return GetPtr(); } |
| }; |
| |
| // Test some basic StatsCounter operations |
| TEST_F(StatsTableTest, StatsCounter) { |
| // Create a stats table. |
| const std::wstring kTableName = L"StatTable"; |
| const int kMaxThreads = 20; |
| const int kMaxCounter = 5; |
| StatsTable table(kTableName, kMaxThreads, kMaxCounter); |
| StatsTable::set_current(&table); |
| |
| MockStatsCounter foo(L"foo"); |
| |
| // Test initial state. |
| EXPECT_TRUE(foo.Enabled()); |
| EXPECT_NE(foo.Pointer(), static_cast<int*>(0)); |
| EXPECT_EQ(0, table.GetCounterValue(L"c:foo")); |
| EXPECT_EQ(0, *(foo.Pointer())); |
| |
| // Test Increment. |
| while(*(foo.Pointer()) < 123) foo.Increment(); |
| EXPECT_EQ(123, table.GetCounterValue(L"c:foo")); |
| foo.Add(0); |
| EXPECT_EQ(123, table.GetCounterValue(L"c:foo")); |
| foo.Add(-1); |
| EXPECT_EQ(122, table.GetCounterValue(L"c:foo")); |
| |
| // Test Set. |
| foo.Set(0); |
| EXPECT_EQ(0, table.GetCounterValue(L"c:foo")); |
| foo.Set(100); |
| EXPECT_EQ(100, table.GetCounterValue(L"c:foo")); |
| foo.Set(-1); |
| EXPECT_EQ(-1, table.GetCounterValue(L"c:foo")); |
| foo.Set(0); |
| EXPECT_EQ(0, table.GetCounterValue(L"c:foo")); |
| |
| // Test Decrement. |
| foo.Decrement(1); |
| EXPECT_EQ(-1, table.GetCounterValue(L"c:foo")); |
| foo.Decrement(0); |
| EXPECT_EQ(-1, table.GetCounterValue(L"c:foo")); |
| foo.Decrement(-1); |
| EXPECT_EQ(0, table.GetCounterValue(L"c:foo")); |
| } |
| |
| class MockStatsCounterTimer : public StatsCounterTimer { |
| public: |
| MockStatsCounterTimer(const std::wstring& name) |
| : StatsCounterTimer(name) {} |
| |
| TimeTicks start_time() { return start_time_; } |
| TimeTicks stop_time() { return stop_time_; } |
| }; |
| |
| // Test some basic StatsCounterTimer operations |
| TEST_F(StatsTableTest, StatsCounterTimer) { |
| // Create a stats table. |
| const std::wstring kTableName = L"StatTable"; |
| const int kMaxThreads = 20; |
| const int kMaxCounter = 5; |
| StatsTable table(kTableName, kMaxThreads, kMaxCounter); |
| StatsTable::set_current(&table); |
| |
| MockStatsCounterTimer bar(L"bar"); |
| |
| // Test initial state. |
| EXPECT_FALSE(bar.Running()); |
| EXPECT_TRUE(bar.start_time().is_null()); |
| EXPECT_TRUE(bar.stop_time().is_null()); |
| |
| // Do some timing. |
| bar.Start(); |
| Sleep(500); |
| bar.Stop(); |
| EXPECT_LE(500, table.GetCounterValue(L"t:bar")); |
| |
| // Verify that timing again is additive. |
| bar.Start(); |
| Sleep(500); |
| bar.Stop(); |
| EXPECT_LE(1000, table.GetCounterValue(L"t:bar")); |
| } |
| |
| // Test some basic StatsRate operations |
| TEST_F(StatsTableTest, StatsRate) { |
| // Create a stats table. |
| const std::wstring kTableName = L"StatTable"; |
| const int kMaxThreads = 20; |
| const int kMaxCounter = 5; |
| StatsTable table(kTableName, kMaxThreads, kMaxCounter); |
| StatsTable::set_current(&table); |
| |
| StatsRate baz(L"baz"); |
| |
| // Test initial state. |
| EXPECT_FALSE(baz.Running()); |
| EXPECT_EQ(0, table.GetCounterValue(L"c:baz")); |
| EXPECT_EQ(0, table.GetCounterValue(L"t:baz")); |
| |
| // Do some timing. |
| baz.Start(); |
| Sleep(500); |
| baz.Stop(); |
| EXPECT_EQ(1, table.GetCounterValue(L"c:baz")); |
| EXPECT_LE(500, table.GetCounterValue(L"t:baz")); |
| |
| // Verify that timing again is additive. |
| baz.Start(); |
| Sleep(500); |
| baz.Stop(); |
| EXPECT_EQ(2, table.GetCounterValue(L"c:baz")); |
| EXPECT_LE(1000, table.GetCounterValue(L"t:baz")); |
| } |
| |
| // Test some basic StatsScope operations |
| TEST_F(StatsTableTest, StatsScope) { |
| // Create a stats table. |
| const std::wstring kTableName = L"StatTable"; |
| const int kMaxThreads = 20; |
| const int kMaxCounter = 5; |
| StatsTable table(kTableName, kMaxThreads, kMaxCounter); |
| StatsTable::set_current(&table); |
| |
| StatsCounterTimer foo(L"foo"); |
| StatsRate bar(L"bar"); |
| |
| // Test initial state. |
| EXPECT_EQ(0, table.GetCounterValue(L"t:foo")); |
| EXPECT_EQ(0, table.GetCounterValue(L"t:bar")); |
| EXPECT_EQ(0, table.GetCounterValue(L"c:bar")); |
| |
| // Try a scope. |
| { |
| StatsScope<StatsCounterTimer> timer(foo); |
| StatsScope<StatsRate> timer2(bar); |
| Sleep(500); |
| } |
| EXPECT_LE(500, table.GetCounterValue(L"t:foo")); |
| EXPECT_LE(500, table.GetCounterValue(L"t:bar")); |
| EXPECT_EQ(1, table.GetCounterValue(L"c:bar")); |
| |
| // Try a second scope. |
| { |
| StatsScope<StatsCounterTimer> timer(foo); |
| StatsScope<StatsRate> timer2(bar); |
| Sleep(500); |
| } |
| EXPECT_LE(1000, table.GetCounterValue(L"t:foo")); |
| EXPECT_LE(1000, table.GetCounterValue(L"t:bar")); |
| EXPECT_EQ(2, table.GetCounterValue(L"c:bar")); |
| } |
| |