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/*
* Copyright (C) 2015 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <gtest/gtest.h>
#include "Alloc.h"
#include "Pointers.h"
#include "Thread.h"
#include "Threads.h"
TEST(ThreadsTest, single_thread) {
Pointers pointers(2);
Threads threads(&pointers, 1);
Thread* thread = threads.CreateThread(900);
ASSERT_TRUE(thread != nullptr);
ASSERT_EQ(1U, threads.num_threads());
Thread* found_thread = threads.FindThread(900);
ASSERT_EQ(thread, found_thread);
AllocEntry thread_done = {.type = THREAD_DONE};
thread->SetAllocEntry(&thread_done);
thread->SetPending();
threads.Finish(thread);
ASSERT_EQ(0U, threads.num_threads());
}
TEST(ThreadsTest, multiple_threads) {
Pointers pointers(4);
Threads threads(&pointers, 1);
Thread* thread1 = threads.CreateThread(900);
ASSERT_TRUE(thread1 != nullptr);
ASSERT_EQ(1U, threads.num_threads());
Thread* thread2 = threads.CreateThread(901);
ASSERT_TRUE(thread2 != nullptr);
ASSERT_EQ(2U, threads.num_threads());
Thread* thread3 = threads.CreateThread(902);
ASSERT_TRUE(thread3 != nullptr);
ASSERT_EQ(3U, threads.num_threads());
Thread* found_thread1 = threads.FindThread(900);
ASSERT_EQ(thread1, found_thread1);
Thread* found_thread2 = threads.FindThread(901);
ASSERT_EQ(thread2, found_thread2);
Thread* found_thread3 = threads.FindThread(902);
ASSERT_EQ(thread3, found_thread3);
AllocEntry thread_done = {.type = THREAD_DONE};
thread1->SetAllocEntry(&thread_done);
thread2->SetAllocEntry(&thread_done);
thread3->SetAllocEntry(&thread_done);
thread1->SetPending();
threads.Finish(thread1);
ASSERT_EQ(2U, threads.num_threads());
thread3->SetPending();
threads.Finish(thread3);
ASSERT_EQ(1U, threads.num_threads());
thread2->SetPending();
threads.Finish(thread2);
ASSERT_EQ(0U, threads.num_threads());
}
TEST(ThreadsTest, verify_quiesce) {
Pointers pointers(4);
Threads threads(&pointers, 1);
Thread* thread = threads.CreateThread(900);
ASSERT_TRUE(thread != nullptr);
ASSERT_EQ(1U, threads.num_threads());
// If WaitForAllToQuiesce is not correct, then this should provoke an error
// since we are overwriting the action data while it's being used.
constexpr size_t kAllocEntries = 512;
std::vector<AllocEntry> mallocs(kAllocEntries);
std::vector<AllocEntry> frees(kAllocEntries);
for (size_t i = 0; i < kAllocEntries; i++) {
mallocs[i].type = MALLOC;
mallocs[i].ptr = 0x1234 + i;
mallocs[i].size = 100;
thread->SetAllocEntry(&mallocs[i]);
thread->SetPending();
threads.WaitForAllToQuiesce();
frees[i].type = FREE;
frees[i].ptr = 0x1234 + i;
thread->SetAllocEntry(&frees[i]);
thread->SetPending();
threads.WaitForAllToQuiesce();
}
AllocEntry thread_done = {.type = THREAD_DONE};
thread->SetAllocEntry(&thread_done);
thread->SetPending();
threads.Finish(thread);
ASSERT_EQ(0U, threads.num_threads());
}
static void TestTooManyThreads() {
Pointers pointers(4);
Threads threads(&pointers, 1);
for (size_t i = 0; i <= threads.max_threads(); i++) {
Thread* thread = threads.CreateThread(900+i);
ASSERT_EQ(thread, threads.FindThread(900+i));
}
}
TEST(ThreadsTest, too_many_threads) {
ASSERT_EXIT(TestTooManyThreads(), ::testing::ExitedWithCode(1), "");
}
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