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Diffstat (limited to 'storage/rocksdb/rocksdb/env/env_test.cc')
| -rw-r--r-- | storage/rocksdb/rocksdb/env/env_test.cc | 1895 |
1 files changed, 1895 insertions, 0 deletions
diff --git a/storage/rocksdb/rocksdb/env/env_test.cc b/storage/rocksdb/rocksdb/env/env_test.cc new file mode 100644 index 00000000..98f73d9a --- /dev/null +++ b/storage/rocksdb/rocksdb/env/env_test.cc @@ -0,0 +1,1895 @@ +// Copyright (c) 2011-present, Facebook, Inc. All rights reserved. +// This source code is licensed under both the GPLv2 (found in the +// COPYING file in the root directory) and Apache 2.0 License +// (found in the LICENSE.Apache file in the root directory). +// +// Copyright (c) 2011 The LevelDB Authors. All rights reserved. +// Use of this source code is governed by a BSD-style license that can be +// found in the LICENSE file. See the AUTHORS file for names of contributors. + +#ifndef OS_WIN +#include <sys/ioctl.h> +#endif + +#include <sys/types.h> + +#include <iostream> +#include <unordered_set> +#include <atomic> +#include <list> + +#ifdef OS_LINUX +#include <fcntl.h> +#include <linux/fs.h> +#include <stdlib.h> +#include <sys/stat.h> +#include <unistd.h> +#endif + +#ifdef ROCKSDB_FALLOCATE_PRESENT +#include <errno.h> +#endif + +#include "env/env_chroot.h" +#include "logging/log_buffer.h" +#include "port/malloc.h" +#include "port/port.h" +#include "rocksdb/env.h" +#include "test_util/sync_point.h" +#include "test_util/testharness.h" +#include "test_util/testutil.h" +#include "util/coding.h" +#include "util/mutexlock.h" +#include "util/string_util.h" + +namespace ROCKSDB_NAMESPACE { + +using port::kPageSize; + +static const int kDelayMicros = 100000; + +struct Deleter { + explicit Deleter(void (*fn)(void*)) : fn_(fn) {} + + void operator()(void* ptr) { + assert(fn_); + assert(ptr); + (*fn_)(ptr); + } + + void (*fn_)(void*); +}; + +std::unique_ptr<char, Deleter> NewAligned(const size_t size, const char ch) { + char* ptr = nullptr; +#ifdef OS_WIN + if (nullptr == (ptr = reinterpret_cast<char*>(_aligned_malloc(size, kPageSize)))) { + return std::unique_ptr<char, Deleter>(nullptr, Deleter(_aligned_free)); + } + std::unique_ptr<char, Deleter> uptr(ptr, Deleter(_aligned_free)); +#else + if (posix_memalign(reinterpret_cast<void**>(&ptr), kPageSize, size) != 0) { + return std::unique_ptr<char, Deleter>(nullptr, Deleter(free)); + } + std::unique_ptr<char, Deleter> uptr(ptr, Deleter(free)); +#endif + memset(uptr.get(), ch, size); + return uptr; +} + +class EnvPosixTest : public testing::Test { + private: + port::Mutex mu_; + std::string events_; + + public: + Env* env_; + bool direct_io_; + EnvPosixTest() : env_(Env::Default()), direct_io_(false) {} +}; + +class EnvPosixTestWithParam + : public EnvPosixTest, + public ::testing::WithParamInterface<std::pair<Env*, bool>> { + public: + EnvPosixTestWithParam() { + std::pair<Env*, bool> param_pair = GetParam(); + env_ = param_pair.first; + direct_io_ = param_pair.second; + } + + void WaitThreadPoolsEmpty() { + // Wait until the thread pools are empty. + while (env_->GetThreadPoolQueueLen(Env::Priority::LOW) != 0) { + Env::Default()->SleepForMicroseconds(kDelayMicros); + } + while (env_->GetThreadPoolQueueLen(Env::Priority::HIGH) != 0) { + Env::Default()->SleepForMicroseconds(kDelayMicros); + } + } + + ~EnvPosixTestWithParam() override { WaitThreadPoolsEmpty(); } +}; + +static void SetBool(void* ptr) { + reinterpret_cast<std::atomic<bool>*>(ptr)->store(true); +} + +TEST_F(EnvPosixTest, DISABLED_RunImmediately) { + for (int pri = Env::BOTTOM; pri < Env::TOTAL; ++pri) { + std::atomic<bool> called(false); + env_->SetBackgroundThreads(1, static_cast<Env::Priority>(pri)); + env_->Schedule(&SetBool, &called, static_cast<Env::Priority>(pri)); + Env::Default()->SleepForMicroseconds(kDelayMicros); + ASSERT_TRUE(called.load()); + } +} + +TEST_F(EnvPosixTest, RunEventually) { + std::atomic<bool> called(false); + env_->StartThread(&SetBool, &called); + env_->WaitForJoin(); + ASSERT_TRUE(called.load()); +} + +#ifdef OS_WIN +TEST_F(EnvPosixTest, AreFilesSame) { + { + bool tmp; + if (env_->AreFilesSame("", "", &tmp).IsNotSupported()) { + fprintf(stderr, + "skipping EnvBasicTestWithParam.AreFilesSame due to " + "unsupported Env::AreFilesSame\n"); + return; + } + } + + const EnvOptions soptions; + auto* env = Env::Default(); + std::string same_file_name = test::PerThreadDBPath(env, "same_file"); + std::string same_file_link_name = same_file_name + "_link"; + + std::unique_ptr<WritableFile> same_file; + ASSERT_OK(env->NewWritableFile(same_file_name, + &same_file, soptions)); + same_file->Append("random_data"); + ASSERT_OK(same_file->Flush()); + same_file.reset(); + + ASSERT_OK(env->LinkFile(same_file_name, same_file_link_name)); + bool result = false; + ASSERT_OK(env->AreFilesSame(same_file_name, same_file_link_name, &result)); + ASSERT_TRUE(result); +} +#endif + +#ifdef OS_LINUX +TEST_F(EnvPosixTest, DISABLED_FilePermission) { + // Only works for Linux environment + if (env_ == Env::Default()) { + EnvOptions soptions; + std::vector<std::string> fileNames{ + test::PerThreadDBPath(env_, "testfile"), + test::PerThreadDBPath(env_, "testfile1")}; + std::unique_ptr<WritableFile> wfile; + ASSERT_OK(env_->NewWritableFile(fileNames[0], &wfile, soptions)); + ASSERT_OK(env_->NewWritableFile(fileNames[1], &wfile, soptions)); + wfile.reset(); + std::unique_ptr<RandomRWFile> rwfile; + ASSERT_OK(env_->NewRandomRWFile(fileNames[1], &rwfile, soptions)); + + struct stat sb; + for (const auto& filename : fileNames) { + if (::stat(filename.c_str(), &sb) == 0) { + ASSERT_EQ(sb.st_mode & 0777, 0644); + } + env_->DeleteFile(filename); + } + + env_->SetAllowNonOwnerAccess(false); + ASSERT_OK(env_->NewWritableFile(fileNames[0], &wfile, soptions)); + ASSERT_OK(env_->NewWritableFile(fileNames[1], &wfile, soptions)); + wfile.reset(); + ASSERT_OK(env_->NewRandomRWFile(fileNames[1], &rwfile, soptions)); + + for (const auto& filename : fileNames) { + if (::stat(filename.c_str(), &sb) == 0) { + ASSERT_EQ(sb.st_mode & 0777, 0600); + } + env_->DeleteFile(filename); + } + } +} +#endif + +TEST_F(EnvPosixTest, MemoryMappedFileBuffer) { + const int kFileBytes = 1 << 15; // 32 KB + std::string expected_data; + std::string fname = test::PerThreadDBPath(env_, "testfile"); + { + std::unique_ptr<WritableFile> wfile; + const EnvOptions soptions; + ASSERT_OK(env_->NewWritableFile(fname, &wfile, soptions)); + + Random rnd(301); + test::RandomString(&rnd, kFileBytes, &expected_data); + ASSERT_OK(wfile->Append(expected_data)); + } + + std::unique_ptr<MemoryMappedFileBuffer> mmap_buffer; + Status status = env_->NewMemoryMappedFileBuffer(fname, &mmap_buffer); + // it should be supported at least on linux +#if !defined(OS_LINUX) + if (status.IsNotSupported()) { + fprintf(stderr, + "skipping EnvPosixTest.MemoryMappedFileBuffer due to " + "unsupported Env::NewMemoryMappedFileBuffer\n"); + return; + } +#endif // !defined(OS_LINUX) + + ASSERT_OK(status); + ASSERT_NE(nullptr, mmap_buffer.get()); + ASSERT_NE(nullptr, mmap_buffer->GetBase()); + ASSERT_EQ(kFileBytes, mmap_buffer->GetLen()); + std::string actual_data(reinterpret_cast<const char*>(mmap_buffer->GetBase()), + mmap_buffer->GetLen()); + ASSERT_EQ(expected_data, actual_data); +} + +#ifndef ROCKSDB_NO_DYNAMIC_EXTENSION +TEST_F(EnvPosixTest, LoadRocksDBLibrary) { + std::shared_ptr<DynamicLibrary> library; + std::function<void*(void*, const char*)> function; + Status status = env_->LoadLibrary("no-such-library", "", &library); + ASSERT_NOK(status); + ASSERT_EQ(nullptr, library.get()); + status = env_->LoadLibrary("rocksdb", "", &library); + if (status.ok()) { // If we have can find a rocksdb shared library + ASSERT_NE(nullptr, library.get()); + ASSERT_OK(library->LoadFunction("rocksdb_create_default_env", + &function)); // from C definition + ASSERT_NE(nullptr, function); + ASSERT_NOK(library->LoadFunction("no-such-method", &function)); + ASSERT_EQ(nullptr, function); + ASSERT_OK(env_->LoadLibrary(library->Name(), "", &library)); + } else { + ASSERT_EQ(nullptr, library.get()); + } +} +#endif // !ROCKSDB_NO_DYNAMIC_EXTENSION + +#if !defined(OS_WIN) && !defined(ROCKSDB_NO_DYNAMIC_EXTENSION) +TEST_F(EnvPosixTest, LoadRocksDBLibraryWithSearchPath) { + std::shared_ptr<DynamicLibrary> library; + std::function<void*(void*, const char*)> function; + ASSERT_NOK(env_->LoadLibrary("no-such-library", "/tmp", &library)); + ASSERT_EQ(nullptr, library.get()); + ASSERT_NOK(env_->LoadLibrary("dl", "/tmp", &library)); + ASSERT_EQ(nullptr, library.get()); + Status status = env_->LoadLibrary("rocksdb", "/tmp:./", &library); + if (status.ok()) { + ASSERT_NE(nullptr, library.get()); + ASSERT_OK(env_->LoadLibrary(library->Name(), "", &library)); + } + char buff[1024]; + std::string cwd = getcwd(buff, sizeof(buff)); + + status = env_->LoadLibrary("rocksdb", "/tmp:" + cwd, &library); + if (status.ok()) { + ASSERT_NE(nullptr, library.get()); + ASSERT_OK(env_->LoadLibrary(library->Name(), "", &library)); + } +} +#endif // !OS_WIN && !ROCKSDB_NO_DYNAMIC_EXTENSION + +TEST_P(EnvPosixTestWithParam, UnSchedule) { + std::atomic<bool> called(false); + env_->SetBackgroundThreads(1, Env::LOW); + + /* Block the low priority queue */ + test::SleepingBackgroundTask sleeping_task, sleeping_task1; + env_->Schedule(&test::SleepingBackgroundTask::DoSleepTask, &sleeping_task, + Env::Priority::LOW); + + /* Schedule another task */ + env_->Schedule(&test::SleepingBackgroundTask::DoSleepTask, &sleeping_task1, + Env::Priority::LOW, &sleeping_task1); + + /* Remove it with a different tag */ + ASSERT_EQ(0, env_->UnSchedule(&called, Env::Priority::LOW)); + + /* Remove it from the queue with the right tag */ + ASSERT_EQ(1, env_->UnSchedule(&sleeping_task1, Env::Priority::LOW)); + + // Unblock background thread + sleeping_task.WakeUp(); + + /* Schedule another task */ + env_->Schedule(&SetBool, &called); + for (int i = 0; i < kDelayMicros; i++) { + if (called.load()) { + break; + } + Env::Default()->SleepForMicroseconds(1); + } + ASSERT_TRUE(called.load()); + + ASSERT_TRUE(!sleeping_task.IsSleeping() && !sleeping_task1.IsSleeping()); + WaitThreadPoolsEmpty(); +} + +// This tests assumes that the last scheduled +// task will run last. In fact, in the allotted +// sleeping time nothing may actually run or they may +// run in any order. The purpose of the test is unclear. +#ifndef OS_WIN +TEST_P(EnvPosixTestWithParam, RunMany) { + std::atomic<int> last_id(0); + + struct CB { + std::atomic<int>* last_id_ptr; // Pointer to shared slot + int id; // Order# for the execution of this callback + + CB(std::atomic<int>* p, int i) : last_id_ptr(p), id(i) {} + + static void Run(void* v) { + CB* cb = reinterpret_cast<CB*>(v); + int cur = cb->last_id_ptr->load(); + ASSERT_EQ(cb->id - 1, cur); + cb->last_id_ptr->store(cb->id); + } + }; + + // Schedule in different order than start time + CB cb1(&last_id, 1); + CB cb2(&last_id, 2); + CB cb3(&last_id, 3); + CB cb4(&last_id, 4); + env_->Schedule(&CB::Run, &cb1); + env_->Schedule(&CB::Run, &cb2); + env_->Schedule(&CB::Run, &cb3); + env_->Schedule(&CB::Run, &cb4); + + Env::Default()->SleepForMicroseconds(kDelayMicros); + int cur = last_id.load(std::memory_order_acquire); + ASSERT_EQ(4, cur); + WaitThreadPoolsEmpty(); +} +#endif + +struct State { + port::Mutex mu; + int val; + int num_running; +}; + +static void ThreadBody(void* arg) { + State* s = reinterpret_cast<State*>(arg); + s->mu.Lock(); + s->val += 1; + s->num_running -= 1; + s->mu.Unlock(); +} + +TEST_P(EnvPosixTestWithParam, StartThread) { + State state; + state.val = 0; + state.num_running = 3; + for (int i = 0; i < 3; i++) { + env_->StartThread(&ThreadBody, &state); + } + while (true) { + state.mu.Lock(); + int num = state.num_running; + state.mu.Unlock(); + if (num == 0) { + break; + } + Env::Default()->SleepForMicroseconds(kDelayMicros); + } + ASSERT_EQ(state.val, 3); + WaitThreadPoolsEmpty(); +} + +TEST_P(EnvPosixTestWithParam, TwoPools) { + // Data structures to signal tasks to run. + port::Mutex mutex; + port::CondVar cv(&mutex); + bool should_start = false; + + class CB { + public: + CB(const std::string& pool_name, int pool_size, port::Mutex* trigger_mu, + port::CondVar* trigger_cv, bool* _should_start) + : mu_(), + num_running_(0), + num_finished_(0), + pool_size_(pool_size), + pool_name_(pool_name), + trigger_mu_(trigger_mu), + trigger_cv_(trigger_cv), + should_start_(_should_start) {} + + static void Run(void* v) { + CB* cb = reinterpret_cast<CB*>(v); + cb->Run(); + } + + void Run() { + { + MutexLock l(&mu_); + num_running_++; + // make sure we don't have more than pool_size_ jobs running. + ASSERT_LE(num_running_, pool_size_.load()); + } + + { + MutexLock l(trigger_mu_); + while (!(*should_start_)) { + trigger_cv_->Wait(); + } + } + + { + MutexLock l(&mu_); + num_running_--; + num_finished_++; + } + } + + int NumFinished() { + MutexLock l(&mu_); + return num_finished_; + } + + void Reset(int pool_size) { + pool_size_.store(pool_size); + num_finished_ = 0; + } + + private: + port::Mutex mu_; + int num_running_; + int num_finished_; + std::atomic<int> pool_size_; + std::string pool_name_; + port::Mutex* trigger_mu_; + port::CondVar* trigger_cv_; + bool* should_start_; + }; + + const int kLowPoolSize = 2; + const int kHighPoolSize = 4; + const int kJobs = 8; + + CB low_pool_job("low", kLowPoolSize, &mutex, &cv, &should_start); + CB high_pool_job("high", kHighPoolSize, &mutex, &cv, &should_start); + + env_->SetBackgroundThreads(kLowPoolSize); + env_->SetBackgroundThreads(kHighPoolSize, Env::Priority::HIGH); + + ASSERT_EQ(0U, env_->GetThreadPoolQueueLen(Env::Priority::LOW)); + ASSERT_EQ(0U, env_->GetThreadPoolQueueLen(Env::Priority::HIGH)); + + // schedule same number of jobs in each pool + for (int i = 0; i < kJobs; i++) { + env_->Schedule(&CB::Run, &low_pool_job); + env_->Schedule(&CB::Run, &high_pool_job, Env::Priority::HIGH); + } + // Wait a short while for the jobs to be dispatched. + int sleep_count = 0; + while ((unsigned int)(kJobs - kLowPoolSize) != + env_->GetThreadPoolQueueLen(Env::Priority::LOW) || + (unsigned int)(kJobs - kHighPoolSize) != + env_->GetThreadPoolQueueLen(Env::Priority::HIGH)) { + env_->SleepForMicroseconds(kDelayMicros); + if (++sleep_count > 100) { + break; + } + } + + ASSERT_EQ((unsigned int)(kJobs - kLowPoolSize), + env_->GetThreadPoolQueueLen()); + ASSERT_EQ((unsigned int)(kJobs - kLowPoolSize), + env_->GetThreadPoolQueueLen(Env::Priority::LOW)); + ASSERT_EQ((unsigned int)(kJobs - kHighPoolSize), + env_->GetThreadPoolQueueLen(Env::Priority::HIGH)); + + // Trigger jobs to run. + { + MutexLock l(&mutex); + should_start = true; + cv.SignalAll(); + } + + // wait for all jobs to finish + while (low_pool_job.NumFinished() < kJobs || + high_pool_job.NumFinished() < kJobs) { + env_->SleepForMicroseconds(kDelayMicros); + } + + ASSERT_EQ(0U, env_->GetThreadPoolQueueLen(Env::Priority::LOW)); + ASSERT_EQ(0U, env_->GetThreadPoolQueueLen(Env::Priority::HIGH)); + + // Hold jobs to schedule; + should_start = false; + + // call IncBackgroundThreadsIfNeeded to two pools. One increasing and + // the other decreasing + env_->IncBackgroundThreadsIfNeeded(kLowPoolSize - 1, Env::Priority::LOW); + env_->IncBackgroundThreadsIfNeeded(kHighPoolSize + 1, Env::Priority::HIGH); + high_pool_job.Reset(kHighPoolSize + 1); + low_pool_job.Reset(kLowPoolSize); + + // schedule same number of jobs in each pool + for (int i = 0; i < kJobs; i++) { + env_->Schedule(&CB::Run, &low_pool_job); + env_->Schedule(&CB::Run, &high_pool_job, Env::Priority::HIGH); + } + // Wait a short while for the jobs to be dispatched. + sleep_count = 0; + while ((unsigned int)(kJobs - kLowPoolSize) != + env_->GetThreadPoolQueueLen(Env::Priority::LOW) || + (unsigned int)(kJobs - (kHighPoolSize + 1)) != + env_->GetThreadPoolQueueLen(Env::Priority::HIGH)) { + env_->SleepForMicroseconds(kDelayMicros); + if (++sleep_count > 100) { + break; + } + } + ASSERT_EQ((unsigned int)(kJobs - kLowPoolSize), + env_->GetThreadPoolQueueLen()); + ASSERT_EQ((unsigned int)(kJobs - kLowPoolSize), + env_->GetThreadPoolQueueLen(Env::Priority::LOW)); + ASSERT_EQ((unsigned int)(kJobs - (kHighPoolSize + 1)), + env_->GetThreadPoolQueueLen(Env::Priority::HIGH)); + + // Trigger jobs to run. + { + MutexLock l(&mutex); + should_start = true; + cv.SignalAll(); + } + + // wait for all jobs to finish + while (low_pool_job.NumFinished() < kJobs || + high_pool_job.NumFinished() < kJobs) { + env_->SleepForMicroseconds(kDelayMicros); + } + + env_->SetBackgroundThreads(kHighPoolSize, Env::Priority::HIGH); + WaitThreadPoolsEmpty(); +} + +TEST_P(EnvPosixTestWithParam, DecreaseNumBgThreads) { + constexpr int kWaitMicros = 60000000; // 1min + + std::vector<test::SleepingBackgroundTask> tasks(10); + + // Set number of thread to 1 first. + env_->SetBackgroundThreads(1, Env::Priority::HIGH); + + // Schedule 3 tasks. 0 running; Task 1, 2 waiting. + for (size_t i = 0; i < 3; i++) { + env_->Schedule(&test::SleepingBackgroundTask::DoSleepTask, &tasks[i], + Env::Priority::HIGH); + } + ASSERT_FALSE(tasks[0].TimedWaitUntilSleeping(kWaitMicros)); + ASSERT_EQ(2U, env_->GetThreadPoolQueueLen(Env::Priority::HIGH)); + ASSERT_TRUE(tasks[0].IsSleeping()); + ASSERT_TRUE(!tasks[1].IsSleeping()); + ASSERT_TRUE(!tasks[2].IsSleeping()); + + // Increase to 2 threads. Task 0, 1 running; 2 waiting + env_->SetBackgroundThreads(2, Env::Priority::HIGH); + ASSERT_FALSE(tasks[1].TimedWaitUntilSleeping(kWaitMicros)); + ASSERT_EQ(1U, env_->GetThreadPoolQueueLen(Env::Priority::HIGH)); + ASSERT_TRUE(tasks[0].IsSleeping()); + ASSERT_TRUE(tasks[1].IsSleeping()); + ASSERT_TRUE(!tasks[2].IsSleeping()); + + // Shrink back to 1 thread. Still task 0, 1 running, 2 waiting + env_->SetBackgroundThreads(1, Env::Priority::HIGH); + Env::Default()->SleepForMicroseconds(kDelayMicros); + ASSERT_EQ(1U, env_->GetThreadPoolQueueLen(Env::Priority::HIGH)); + ASSERT_TRUE(tasks[0].IsSleeping()); + ASSERT_TRUE(tasks[1].IsSleeping()); + ASSERT_TRUE(!tasks[2].IsSleeping()); + + // The last task finishes. Task 0 running, 2 waiting. + tasks[1].WakeUp(); + ASSERT_FALSE(tasks[1].TimedWaitUntilDone(kWaitMicros)); + ASSERT_EQ(1U, env_->GetThreadPoolQueueLen(Env::Priority::HIGH)); + ASSERT_TRUE(tasks[0].IsSleeping()); + ASSERT_TRUE(!tasks[1].IsSleeping()); + ASSERT_TRUE(!tasks[2].IsSleeping()); + + // Increase to 5 threads. Task 0 and 2 running. + env_->SetBackgroundThreads(5, Env::Priority::HIGH); + ASSERT_FALSE(tasks[2].TimedWaitUntilSleeping(kWaitMicros)); + ASSERT_EQ(0U, env_->GetThreadPoolQueueLen(Env::Priority::HIGH)); + ASSERT_TRUE(tasks[0].IsSleeping()); + ASSERT_TRUE(!tasks[1].IsSleeping()); + ASSERT_TRUE(tasks[2].IsSleeping()); + + // Change number of threads a couple of times while there is no sufficient + // tasks. + env_->SetBackgroundThreads(7, Env::Priority::HIGH); + tasks[2].WakeUp(); + ASSERT_FALSE(tasks[2].TimedWaitUntilDone(kWaitMicros)); + ASSERT_EQ(0U, env_->GetThreadPoolQueueLen(Env::Priority::HIGH)); + env_->SetBackgroundThreads(3, Env::Priority::HIGH); + Env::Default()->SleepForMicroseconds(kDelayMicros); + ASSERT_EQ(0U, env_->GetThreadPoolQueueLen(Env::Priority::HIGH)); + env_->SetBackgroundThreads(4, Env::Priority::HIGH); + Env::Default()->SleepForMicroseconds(kDelayMicros); + ASSERT_EQ(0U, env_->GetThreadPoolQueueLen(Env::Priority::HIGH)); + env_->SetBackgroundThreads(5, Env::Priority::HIGH); + Env::Default()->SleepForMicroseconds(kDelayMicros); + ASSERT_EQ(0U, env_->GetThreadPoolQueueLen(Env::Priority::HIGH)); + env_->SetBackgroundThreads(4, Env::Priority::HIGH); + Env::Default()->SleepForMicroseconds(kDelayMicros); + ASSERT_EQ(0U, env_->GetThreadPoolQueueLen(Env::Priority::HIGH)); + + Env::Default()->SleepForMicroseconds(kDelayMicros * 50); + + // Enqueue 5 more tasks. Thread pool size now is 4. + // Task 0, 3, 4, 5 running;6, 7 waiting. + for (size_t i = 3; i < 8; i++) { + env_->Schedule(&test::SleepingBackgroundTask::DoSleepTask, &tasks[i], + Env::Priority::HIGH); + } + for (size_t i = 3; i <= 5; i++) { + ASSERT_FALSE(tasks[i].TimedWaitUntilSleeping(kWaitMicros)); + } + ASSERT_EQ(2U, env_->GetThreadPoolQueueLen(Env::Priority::HIGH)); + ASSERT_TRUE(tasks[0].IsSleeping()); + ASSERT_TRUE(!tasks[1].IsSleeping()); + ASSERT_TRUE(!tasks[2].IsSleeping()); + ASSERT_TRUE(tasks[3].IsSleeping()); + ASSERT_TRUE(tasks[4].IsSleeping()); + ASSERT_TRUE(tasks[5].IsSleeping()); + ASSERT_TRUE(!tasks[6].IsSleeping()); + ASSERT_TRUE(!tasks[7].IsSleeping()); + + // Wake up task 0, 3 and 4. Task 5, 6, 7 running. + tasks[0].WakeUp(); + tasks[3].WakeUp(); + tasks[4].WakeUp(); + + for (size_t i = 5; i < 8; i++) { + ASSERT_FALSE(tasks[i].TimedWaitUntilSleeping(kWaitMicros)); + } + ASSERT_EQ(0U, env_->GetThreadPoolQueueLen(Env::Priority::HIGH)); + for (size_t i = 5; i < 8; i++) { + ASSERT_TRUE(tasks[i].IsSleeping()); + } + + // Shrink back to 1 thread. Still task 5, 6, 7 running + env_->SetBackgroundThreads(1, Env::Priority::HIGH); + Env::Default()->SleepForMicroseconds(kDelayMicros); + ASSERT_TRUE(tasks[5].IsSleeping()); + ASSERT_TRUE(tasks[6].IsSleeping()); + ASSERT_TRUE(tasks[7].IsSleeping()); + + // Wake up task 6. Task 5, 7 running + tasks[6].WakeUp(); + ASSERT_FALSE(tasks[6].TimedWaitUntilDone(kWaitMicros)); + ASSERT_TRUE(tasks[5].IsSleeping()); + ASSERT_TRUE(!tasks[6].IsSleeping()); + ASSERT_TRUE(tasks[7].IsSleeping()); + + // Wake up threads 7. Task 5 running + tasks[7].WakeUp(); + ASSERT_FALSE(tasks[7].TimedWaitUntilDone(kWaitMicros)); + ASSERT_TRUE(!tasks[7].IsSleeping()); + + // Enqueue thread 8 and 9. Task 5 running; one of 8, 9 might be running. + env_->Schedule(&test::SleepingBackgroundTask::DoSleepTask, &tasks[8], + Env::Priority::HIGH); + env_->Schedule(&test::SleepingBackgroundTask::DoSleepTask, &tasks[9], + Env::Priority::HIGH); + Env::Default()->SleepForMicroseconds(kDelayMicros); + ASSERT_GT(env_->GetThreadPoolQueueLen(Env::Priority::HIGH), (unsigned int)0); + ASSERT_TRUE(!tasks[8].IsSleeping() || !tasks[9].IsSleeping()); + + // Increase to 4 threads. Task 5, 8, 9 running. + env_->SetBackgroundThreads(4, Env::Priority::HIGH); + Env::Default()->SleepForMicroseconds(kDelayMicros); + ASSERT_EQ((unsigned int)0, env_->GetThreadPoolQueueLen(Env::Priority::HIGH)); + ASSERT_TRUE(tasks[8].IsSleeping()); + ASSERT_TRUE(tasks[9].IsSleeping()); + + // Shrink to 1 thread + env_->SetBackgroundThreads(1, Env::Priority::HIGH); + + // Wake up thread 9. + tasks[9].WakeUp(); + ASSERT_FALSE(tasks[9].TimedWaitUntilDone(kWaitMicros)); + ASSERT_TRUE(!tasks[9].IsSleeping()); + ASSERT_TRUE(tasks[8].IsSleeping()); + + // Wake up thread 8 + tasks[8].WakeUp(); + ASSERT_FALSE(tasks[8].TimedWaitUntilDone(kWaitMicros)); + ASSERT_TRUE(!tasks[8].IsSleeping()); + + // Wake up the last thread + tasks[5].WakeUp(); + ASSERT_FALSE(tasks[5].TimedWaitUntilDone(kWaitMicros)); + WaitThreadPoolsEmpty(); +} + +#if (defined OS_LINUX || defined OS_WIN) +// Travis doesn't support fallocate or getting unique ID from files for whatever +// reason. +#ifndef TRAVIS + +namespace { +bool IsSingleVarint(const std::string& s) { + Slice slice(s); + + uint64_t v; + if (!GetVarint64(&slice, &v)) { + return false; + } + + return slice.size() == 0; +} + +bool IsUniqueIDValid(const std::string& s) { + return !s.empty() && !IsSingleVarint(s); +} + +const size_t MAX_ID_SIZE = 100; +char temp_id[MAX_ID_SIZE]; + + +} // namespace + +// Determine whether we can use the FS_IOC_GETVERSION ioctl +// on a file in directory DIR. Create a temporary file therein, +// try to apply the ioctl (save that result), cleanup and +// return the result. Return true if it is supported, and +// false if anything fails. +// Note that this function "knows" that dir has just been created +// and is empty, so we create a simply-named test file: "f". +bool ioctl_support__FS_IOC_GETVERSION(const std::string& dir) { +#ifdef OS_WIN + return true; +#else + const std::string file = dir + "/f"; + int fd; + do { + fd = open(file.c_str(), O_CREAT | O_RDWR | O_TRUNC, 0644); + } while (fd < 0 && errno == EINTR); + long int version; + bool ok = (fd >= 0 && ioctl(fd, FS_IOC_GETVERSION, &version) >= 0); + + close(fd); + unlink(file.c_str()); + + return ok; +#endif +} + +// To ensure that Env::GetUniqueId-related tests work correctly, the files +// should be stored in regular storage like "hard disk" or "flash device", +// and not on a tmpfs file system (like /dev/shm and /tmp on some systems). +// Otherwise we cannot get the correct id. +// +// This function serves as the replacement for test::TmpDir(), which may be +// customized to be on a file system that doesn't work with GetUniqueId(). + +class IoctlFriendlyTmpdir { + public: + explicit IoctlFriendlyTmpdir() { + char dir_buf[100]; + + const char *fmt = "%s/rocksdb.XXXXXX"; + const char *tmp = getenv("TEST_IOCTL_FRIENDLY_TMPDIR"); + +#ifdef OS_WIN +#define rmdir _rmdir + if(tmp == nullptr) { + tmp = getenv("TMP"); + } + + snprintf(dir_buf, sizeof dir_buf, fmt, tmp); + auto result = _mktemp(dir_buf); + assert(result != nullptr); + BOOL ret = CreateDirectory(dir_buf, NULL); + assert(ret == TRUE); + dir_ = dir_buf; +#else + std::list<std::string> candidate_dir_list = {"/var/tmp", "/tmp"}; + + // If $TEST_IOCTL_FRIENDLY_TMPDIR/rocksdb.XXXXXX fits, use + // $TEST_IOCTL_FRIENDLY_TMPDIR; subtract 2 for the "%s", and + // add 1 for the trailing NUL byte. + if (tmp && strlen(tmp) + strlen(fmt) - 2 + 1 <= sizeof dir_buf) { + // use $TEST_IOCTL_FRIENDLY_TMPDIR value + candidate_dir_list.push_front(tmp); + } + + for (const std::string& d : candidate_dir_list) { + snprintf(dir_buf, sizeof dir_buf, fmt, d.c_str()); + if (mkdtemp(dir_buf)) { + if (ioctl_support__FS_IOC_GETVERSION(dir_buf)) { + dir_ = dir_buf; + return; + } else { + // Diagnose ioctl-related failure only if this is the + // directory specified via that envvar. + if (tmp && tmp == d) { + fprintf(stderr, "TEST_IOCTL_FRIENDLY_TMPDIR-specified directory is " + "not suitable: %s\n", d.c_str()); + } + rmdir(dir_buf); // ignore failure + } + } else { + // mkdtemp failed: diagnose it, but don't give up. + fprintf(stderr, "mkdtemp(%s/...) failed: %s\n", d.c_str(), + strerror(errno)); + } + } + + fprintf(stderr, "failed to find an ioctl-friendly temporary directory;" + " specify one via the TEST_IOCTL_FRIENDLY_TMPDIR envvar\n"); + std::abort(); +#endif +} + + ~IoctlFriendlyTmpdir() { + rmdir(dir_.c_str()); + } + + const std::string& name() const { + return dir_; + } + + private: + std::string dir_; +}; + +#ifndef ROCKSDB_LITE +TEST_F(EnvPosixTest, PositionedAppend) { + std::unique_ptr<WritableFile> writable_file; + EnvOptions options; + options.use_direct_writes = true; + options.use_mmap_writes = false; + IoctlFriendlyTmpdir ift; + ASSERT_OK(env_->NewWritableFile(ift.name() + "/f", &writable_file, options)); + const size_t kBlockSize = 4096; + const size_t kDataSize = kPageSize; + // Write a page worth of 'a' + auto data_ptr = NewAligned(kDataSize, 'a'); + Slice data_a(data_ptr.get(), kDataSize); + ASSERT_OK(writable_file->PositionedAppend(data_a, 0U)); + // Write a page worth of 'b' right after the first sector + data_ptr = NewAligned(kDataSize, 'b'); + Slice data_b(data_ptr.get(), kDataSize); + ASSERT_OK(writable_file->PositionedAppend(data_b, kBlockSize)); + ASSERT_OK(writable_file->Close()); + // The file now has 1 sector worth of a followed by a page worth of b + + // Verify the above + std::unique_ptr<SequentialFile> seq_file; + ASSERT_OK(env_->NewSequentialFile(ift.name() + "/f", &seq_file, options)); + size_t scratch_len = kPageSize * 2; + std::unique_ptr<char[]> scratch(new char[scratch_len]); + Slice result; + ASSERT_OK(seq_file->Read(scratch_len, &result, scratch.get())); + ASSERT_EQ(kPageSize + kBlockSize, result.size()); + ASSERT_EQ('a', result[kBlockSize - 1]); + ASSERT_EQ('b', result[kBlockSize]); +} +#endif // !ROCKSDB_LITE + +// `GetUniqueId()` temporarily returns zero on Windows. `BlockBasedTable` can +// handle a return value of zero but this test case cannot. +#ifndef OS_WIN +TEST_P(EnvPosixTestWithParam, RandomAccessUniqueID) { + // Create file. + if (env_ == Env::Default()) { + EnvOptions soptions; + soptions.use_direct_reads = soptions.use_direct_writes = direct_io_; + IoctlFriendlyTmpdir ift; + std::string fname = ift.name() + "/testfile"; + std::unique_ptr<WritableFile> wfile; + ASSERT_OK(env_->NewWritableFile(fname, &wfile, soptions)); + + std::unique_ptr<RandomAccessFile> file; + + // Get Unique ID + ASSERT_OK(env_->NewRandomAccessFile(fname, &file, soptions)); + size_t id_size = file->GetUniqueId(temp_id, MAX_ID_SIZE); + ASSERT_TRUE(id_size > 0); + std::string unique_id1(temp_id, id_size); + ASSERT_TRUE(IsUniqueIDValid(unique_id1)); + + // Get Unique ID again + ASSERT_OK(env_->NewRandomAccessFile(fname, &file, soptions)); + id_size = file->GetUniqueId(temp_id, MAX_ID_SIZE); + ASSERT_TRUE(id_size > 0); + std::string unique_id2(temp_id, id_size); + ASSERT_TRUE(IsUniqueIDValid(unique_id2)); + + // Get Unique ID again after waiting some time. + env_->SleepForMicroseconds(1000000); + ASSERT_OK(env_->NewRandomAccessFile(fname, &file, soptions)); + id_size = file->GetUniqueId(temp_id, MAX_ID_SIZE); + ASSERT_TRUE(id_size > 0); + std::string unique_id3(temp_id, id_size); + ASSERT_TRUE(IsUniqueIDValid(unique_id3)); + + // Check IDs are the same. + ASSERT_EQ(unique_id1, unique_id2); + ASSERT_EQ(unique_id2, unique_id3); + + // Delete the file + env_->DeleteFile(fname); + } +} +#endif // !defined(OS_WIN) + +// only works in linux platforms +#ifdef ROCKSDB_FALLOCATE_PRESENT +TEST_P(EnvPosixTestWithParam, AllocateTest) { + if (env_ == Env::Default()) { + IoctlFriendlyTmpdir ift; + std::string fname = ift.name() + "/preallocate_testfile"; + + // Try fallocate in a file to see whether the target file system supports + // it. + // Skip the test if fallocate is not supported. + std::string fname_test_fallocate = ift.name() + "/preallocate_testfile_2"; + int fd = -1; + do { + fd = open(fname_test_fallocate.c_str(), O_CREAT | O_RDWR | O_TRUNC, 0644); + } while (fd < 0 && errno == EINTR); + ASSERT_GT(fd, 0); + + int alloc_status = fallocate(fd, 0, 0, 1); + + int err_number = 0; + if (alloc_status != 0) { + err_number = errno; + fprintf(stderr, "Warning: fallocate() fails, %s\n", strerror(err_number)); + } + close(fd); + ASSERT_OK(env_->DeleteFile(fname_test_fallocate)); + if (alloc_status != 0 && err_number == EOPNOTSUPP) { + // The filesystem containing the file does not support fallocate + return; + } + + EnvOptions soptions; + soptions.use_mmap_writes = false; + soptions.use_direct_reads = soptions.use_direct_writes = direct_io_; + std::unique_ptr<WritableFile> wfile; + ASSERT_OK(env_->NewWritableFile(fname, &wfile, soptions)); + + // allocate 100 MB + size_t kPreallocateSize = 100 * 1024 * 1024; + size_t kBlockSize = 512; + size_t kDataSize = 1024 * 1024; + auto data_ptr = NewAligned(kDataSize, 'A'); + Slice data(data_ptr.get(), kDataSize); + wfile->SetPreallocationBlockSize(kPreallocateSize); + wfile->PrepareWrite(wfile->GetFileSize(), kDataSize); + ASSERT_OK(wfile->Append(data)); + ASSERT_OK(wfile->Flush()); + + struct stat f_stat; + ASSERT_EQ(stat(fname.c_str(), &f_stat), 0); + ASSERT_EQ((unsigned int)kDataSize, f_stat.st_size); + // verify that blocks are preallocated + // Note here that we don't check the exact number of blocks preallocated -- + // we only require that number of allocated blocks is at least what we + // expect. + // It looks like some FS give us more blocks that we asked for. That's fine. + // It might be worth investigating further. + ASSERT_LE((unsigned int)(kPreallocateSize / kBlockSize), f_stat.st_blocks); + + // close the file, should deallocate the blocks + wfile.reset(); + + stat(fname.c_str(), &f_stat); + ASSERT_EQ((unsigned int)kDataSize, f_stat.st_size); + // verify that preallocated blocks were deallocated on file close + // Because the FS might give us more blocks, we add a full page to the size + // and expect the number of blocks to be less or equal to that. + ASSERT_GE((f_stat.st_size + kPageSize + kBlockSize - 1) / kBlockSize, + (unsigned int)f_stat.st_blocks); + } +} +#endif // ROCKSDB_FALLOCATE_PRESENT + +// Returns true if any of the strings in ss are the prefix of another string. +bool HasPrefix(const std::unordered_set<std::string>& ss) { + for (const std::string& s: ss) { + if (s.empty()) { + return true; + } + for (size_t i = 1; i < s.size(); ++i) { + if (ss.count(s.substr(0, i)) != 0) { + return true; + } + } + } + return false; +} + +// `GetUniqueId()` temporarily returns zero on Windows. `BlockBasedTable` can +// handle a return value of zero but this test case cannot. +#ifndef OS_WIN +TEST_P(EnvPosixTestWithParam, RandomAccessUniqueIDConcurrent) { + if (env_ == Env::Default()) { + // Check whether a bunch of concurrently existing files have unique IDs. + EnvOptions soptions; + soptions.use_direct_reads = soptions.use_direct_writes = direct_io_; + + // Create the files + IoctlFriendlyTmpdir ift; + std::vector<std::string> fnames; + for (int i = 0; i < 1000; ++i) { + fnames.push_back(ift.name() + "/" + "testfile" + ToString(i)); + + // Create file. + std::unique_ptr<WritableFile> wfile; + ASSERT_OK(env_->NewWritableFile(fnames[i], &wfile, soptions)); + } + + // Collect and check whether the IDs are unique. + std::unordered_set<std::string> ids; + for (const std::string fname : fnames) { + std::unique_ptr<RandomAccessFile> file; + std::string unique_id; + ASSERT_OK(env_->NewRandomAccessFile(fname, &file, soptions)); + size_t id_size = file->GetUniqueId(temp_id, MAX_ID_SIZE); + ASSERT_TRUE(id_size > 0); + unique_id = std::string(temp_id, id_size); + ASSERT_TRUE(IsUniqueIDValid(unique_id)); + + ASSERT_TRUE(ids.count(unique_id) == 0); + ids.insert(unique_id); + } + + // Delete the files + for (const std::string fname : fnames) { + ASSERT_OK(env_->DeleteFile(fname)); + } + + ASSERT_TRUE(!HasPrefix(ids)); + } +} + +TEST_P(EnvPosixTestWithParam, RandomAccessUniqueIDDeletes) { + if (env_ == Env::Default()) { + EnvOptions soptions; + soptions.use_direct_reads = soptions.use_direct_writes = direct_io_; + + IoctlFriendlyTmpdir ift; + std::string fname = ift.name() + "/" + "testfile"; + + // Check that after file is deleted we don't get same ID again in a new + // file. + std::unordered_set<std::string> ids; + for (int i = 0; i < 1000; ++i) { + // Create file. + { + std::unique_ptr<WritableFile> wfile; + ASSERT_OK(env_->NewWritableFile(fname, &wfile, soptions)); + } + + // Get Unique ID + std::string unique_id; + { + std::unique_ptr<RandomAccessFile> file; + ASSERT_OK(env_->NewRandomAccessFile(fname, &file, soptions)); + size_t id_size = file->GetUniqueId(temp_id, MAX_ID_SIZE); + ASSERT_TRUE(id_size > 0); + unique_id = std::string(temp_id, id_size); + } + + ASSERT_TRUE(IsUniqueIDValid(unique_id)); + ASSERT_TRUE(ids.count(unique_id) == 0); + ids.insert(unique_id); + + // Delete the file + ASSERT_OK(env_->DeleteFile(fname)); + } + + ASSERT_TRUE(!HasPrefix(ids)); + } +} +#endif // !defined(OS_WIN) + +TEST_P(EnvPosixTestWithParam, MultiRead) { + EnvOptions soptions; + soptions.use_direct_reads = soptions.use_direct_writes = direct_io_; + std::string fname = test::PerThreadDBPath(env_, "testfile"); + + const size_t kSectorSize = 4096; + const size_t kNumSectors = 8; + + // Create file. + { + std::unique_ptr<WritableFile> wfile; +#if !defined(OS_MACOSX) && !defined(OS_WIN) && !defined(OS_SOLARIS) && \ + !defined(OS_AIX) + if (soptions.use_direct_writes) { + soptions.use_direct_writes = false; + } +#endif + ASSERT_OK(env_->NewWritableFile(fname, &wfile, soptions)); + for (size_t i = 0; i < kNumSectors; ++i) { + auto data = NewAligned(kSectorSize * 8, static_cast<char>(i + 1)); + Slice slice(data.get(), kSectorSize); + ASSERT_OK(wfile->Append(slice)); + } + ASSERT_OK(wfile->Close()); + } + + // More attempts to simulate more partial result sequences. + for (uint32_t attempt = 0; attempt < 20; attempt++) { + // Random Read + Random rnd(301 + attempt); + ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->SetCallBack( + "PosixRandomAccessFile::MultiRead:io_uring_result", [&](void* arg) { + if (attempt > 0) { + // No failure in the first attempt. + size_t& bytes_read = *static_cast<size_t*>(arg); + if (rnd.OneIn(4)) { + bytes_read = 0; + } else if (rnd.OneIn(3)) { + bytes_read = static_cast<size_t>( + rnd.Uniform(static_cast<int>(bytes_read))); + } + } + }); + ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->EnableProcessing(); + + std::unique_ptr<RandomAccessFile> file; + std::vector<ReadRequest> reqs(3); + std::vector<std::unique_ptr<char, Deleter>> data; + uint64_t offset = 0; + for (size_t i = 0; i < reqs.size(); ++i) { + reqs[i].offset = offset; + offset += 2 * kSectorSize; + reqs[i].len = kSectorSize; + data.emplace_back(NewAligned(kSectorSize, 0)); + reqs[i].scratch = data.back().get(); + } +#if !defined(OS_MACOSX) && !defined(OS_WIN) && !defined(OS_SOLARIS) && \ + !defined(OS_AIX) + if (soptions.use_direct_reads) { + soptions.use_direct_reads = false; + } +#endif + ASSERT_OK(env_->NewRandomAccessFile(fname, &file, soptions)); + ASSERT_OK(file->MultiRead(reqs.data(), reqs.size())); + for (size_t i = 0; i < reqs.size(); ++i) { + auto buf = NewAligned(kSectorSize * 8, static_cast<char>(i * 2 + 1)); + ASSERT_OK(reqs[i].status); + ASSERT_EQ(memcmp(reqs[i].scratch, buf.get(), kSectorSize), 0); + } + ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->DisableProcessing(); + } +} + +// Only works in linux platforms +#ifdef OS_WIN +TEST_P(EnvPosixTestWithParam, DISABLED_InvalidateCache) { +#else +TEST_P(EnvPosixTestWithParam, InvalidateCache) { +#endif + ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->EnableProcessing(); + EnvOptions soptions; + soptions.use_direct_reads = soptions.use_direct_writes = direct_io_; + std::string fname = test::PerThreadDBPath(env_, "testfile"); + + const size_t kSectorSize = 512; + auto data = NewAligned(kSectorSize, 0); + Slice slice(data.get(), kSectorSize); + + // Create file. + { + std::unique_ptr<WritableFile> wfile; +#if !defined(OS_MACOSX) && !defined(OS_WIN) && !defined(OS_SOLARIS) && !defined(OS_AIX) + if (soptions.use_direct_writes) { + soptions.use_direct_writes = false; + } +#endif + ASSERT_OK(env_->NewWritableFile(fname, &wfile, soptions)); + ASSERT_OK(wfile->Append(slice)); + ASSERT_OK(wfile->InvalidateCache(0, 0)); + ASSERT_OK(wfile->Close()); + } + + // Random Read + { + std::unique_ptr<RandomAccessFile> file; + auto scratch = NewAligned(kSectorSize, 0); + Slice result; +#if !defined(OS_MACOSX) && !defined(OS_WIN) && !defined(OS_SOLARIS) && !defined(OS_AIX) + if (soptions.use_direct_reads) { + soptions.use_direct_reads = false; + } +#endif + ASSERT_OK(env_->NewRandomAccessFile(fname, &file, soptions)); + ASSERT_OK(file->Read(0, kSectorSize, &result, scratch.get())); + ASSERT_EQ(memcmp(scratch.get(), data.get(), kSectorSize), 0); + ASSERT_OK(file->InvalidateCache(0, 11)); + ASSERT_OK(file->InvalidateCache(0, 0)); + } + + // Sequential Read + { + std::unique_ptr<SequentialFile> file; + auto scratch = NewAligned(kSectorSize, 0); + Slice result; +#if !defined(OS_MACOSX) && !defined(OS_WIN) && !defined(OS_SOLARIS) && !defined(OS_AIX) + if (soptions.use_direct_reads) { + soptions.use_direct_reads = false; + } +#endif + ASSERT_OK(env_->NewSequentialFile(fname, &file, soptions)); + if (file->use_direct_io()) { + ASSERT_OK(file->PositionedRead(0, kSectorSize, &result, scratch.get())); + } else { + ASSERT_OK(file->Read(kSectorSize, &result, scratch.get())); + } + ASSERT_EQ(memcmp(scratch.get(), data.get(), kSectorSize), 0); + ASSERT_OK(file->InvalidateCache(0, 11)); + ASSERT_OK(file->InvalidateCache(0, 0)); + } + // Delete the file + ASSERT_OK(env_->DeleteFile(fname)); + ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->ClearTrace(); +} +#endif // not TRAVIS +#endif // OS_LINUX || OS_WIN + +class TestLogger : public Logger { + public: + using Logger::Logv; + void Logv(const char* format, va_list ap) override { + log_count++; + + char new_format[550]; + std::fill_n(new_format, sizeof(new_format), '2'); + { + va_list backup_ap; + va_copy(backup_ap, ap); + int n = vsnprintf(new_format, sizeof(new_format) - 1, format, backup_ap); + // 48 bytes for extra information + bytes allocated + +// When we have n == -1 there is not a terminating zero expected +#ifdef OS_WIN + if (n < 0) { + char_0_count++; + } +#endif + + if (new_format[0] == '[') { + // "[DEBUG] " + ASSERT_TRUE(n <= 56 + (512 - static_cast<int>(sizeof(struct timeval)))); + } else { + ASSERT_TRUE(n <= 48 + (512 - static_cast<int>(sizeof(struct timeval)))); + } + va_end(backup_ap); + } + + for (size_t i = 0; i < sizeof(new_format); i++) { + if (new_format[i] == 'x') { + char_x_count++; + } else if (new_format[i] == '\0') { + char_0_count++; + } + } + } + int log_count; + int char_x_count; + int char_0_count; +}; + +TEST_P(EnvPosixTestWithParam, LogBufferTest) { + TestLogger test_logger; + test_logger.SetInfoLogLevel(InfoLogLevel::INFO_LEVEL); + test_logger.log_count = 0; + test_logger.char_x_count = 0; + test_logger.char_0_count = 0; + LogBuffer log_buffer(InfoLogLevel::INFO_LEVEL, &test_logger); + LogBuffer log_buffer_debug(DEBUG_LEVEL, &test_logger); + + char bytes200[200]; + std::fill_n(bytes200, sizeof(bytes200), '1'); + bytes200[sizeof(bytes200) - 1] = '\0'; + char bytes600[600]; + std::fill_n(bytes600, sizeof(bytes600), '1'); + bytes600[sizeof(bytes600) - 1] = '\0'; + char bytes9000[9000]; + std::fill_n(bytes9000, sizeof(bytes9000), '1'); + bytes9000[sizeof(bytes9000) - 1] = '\0'; + + ROCKS_LOG_BUFFER(&log_buffer, "x%sx", bytes200); + ROCKS_LOG_BUFFER(&log_buffer, "x%sx", bytes600); + ROCKS_LOG_BUFFER(&log_buffer, "x%sx%sx%sx", bytes200, bytes200, bytes200); + ROCKS_LOG_BUFFER(&log_buffer, "x%sx%sx", bytes200, bytes600); + ROCKS_LOG_BUFFER(&log_buffer, "x%sx%sx", bytes600, bytes9000); + + ROCKS_LOG_BUFFER(&log_buffer_debug, "x%sx", bytes200); + test_logger.SetInfoLogLevel(DEBUG_LEVEL); + ROCKS_LOG_BUFFER(&log_buffer_debug, "x%sx%sx%sx", bytes600, bytes9000, + bytes200); + + ASSERT_EQ(0, test_logger.log_count); + log_buffer.FlushBufferToLog(); + log_buffer_debug.FlushBufferToLog(); + ASSERT_EQ(6, test_logger.log_count); + ASSERT_EQ(6, test_logger.char_0_count); + ASSERT_EQ(10, test_logger.char_x_count); +} + +class TestLogger2 : public Logger { + public: + explicit TestLogger2(size_t max_log_size) : max_log_size_(max_log_size) {} + using Logger::Logv; + void Logv(const char* format, va_list ap) override { + char new_format[2000]; + std::fill_n(new_format, sizeof(new_format), '2'); + { + va_list backup_ap; + va_copy(backup_ap, ap); + int n = vsnprintf(new_format, sizeof(new_format) - 1, format, backup_ap); + // 48 bytes for extra information + bytes allocated + ASSERT_TRUE( + n <= 48 + static_cast<int>(max_log_size_ - sizeof(struct timeval))); + ASSERT_TRUE(n > static_cast<int>(max_log_size_ - sizeof(struct timeval))); + va_end(backup_ap); + } + } + size_t max_log_size_; +}; + +TEST_P(EnvPosixTestWithParam, LogBufferMaxSizeTest) { + char bytes9000[9000]; + std::fill_n(bytes9000, sizeof(bytes9000), '1'); + bytes9000[sizeof(bytes9000) - 1] = '\0'; + + for (size_t max_log_size = 256; max_log_size <= 1024; + max_log_size += 1024 - 256) { + TestLogger2 test_logger(max_log_size); + test_logger.SetInfoLogLevel(InfoLogLevel::INFO_LEVEL); + LogBuffer log_buffer(InfoLogLevel::INFO_LEVEL, &test_logger); + ROCKS_LOG_BUFFER_MAX_SZ(&log_buffer, max_log_size, "%s", bytes9000); + log_buffer.FlushBufferToLog(); + } +} + +TEST_P(EnvPosixTestWithParam, Preallocation) { + ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->EnableProcessing(); + const std::string src = test::PerThreadDBPath(env_, "testfile"); + std::unique_ptr<WritableFile> srcfile; + EnvOptions soptions; + soptions.use_direct_reads = soptions.use_direct_writes = direct_io_; +#if !defined(OS_MACOSX) && !defined(OS_WIN) && !defined(OS_SOLARIS) && !defined(OS_AIX) && !defined(OS_OPENBSD) && !defined(OS_FREEBSD) + if (soptions.use_direct_writes) { + ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->SetCallBack( + "NewWritableFile:O_DIRECT", [&](void* arg) { + int* val = static_cast<int*>(arg); + *val &= ~O_DIRECT; + }); + } +#endif + ASSERT_OK(env_->NewWritableFile(src, &srcfile, soptions)); + srcfile->SetPreallocationBlockSize(1024 * 1024); + + // No writes should mean no preallocation + size_t block_size, last_allocated_block; + srcfile->GetPreallocationStatus(&block_size, &last_allocated_block); + ASSERT_EQ(last_allocated_block, 0UL); + + // Small write should preallocate one block + size_t kStrSize = 4096; + auto data = NewAligned(kStrSize, 'A'); + Slice str(data.get(), kStrSize); + srcfile->PrepareWrite(srcfile->GetFileSize(), kStrSize); + srcfile->Append(str); + srcfile->GetPreallocationStatus(&block_size, &last_allocated_block); + ASSERT_EQ(last_allocated_block, 1UL); + + // Write an entire preallocation block, make sure we increased by two. + { + auto buf_ptr = NewAligned(block_size, ' '); + Slice buf(buf_ptr.get(), block_size); + srcfile->PrepareWrite(srcfile->GetFileSize(), block_size); + srcfile->Append(buf); + srcfile->GetPreallocationStatus(&block_size, &last_allocated_block); + ASSERT_EQ(last_allocated_block, 2UL); + } + + // Write five more blocks at once, ensure we're where we need to be. + { + auto buf_ptr = NewAligned(block_size * 5, ' '); + Slice buf = Slice(buf_ptr.get(), block_size * 5); + srcfile->PrepareWrite(srcfile->GetFileSize(), buf.size()); + srcfile->Append(buf); + srcfile->GetPreallocationStatus(&block_size, &last_allocated_block); + ASSERT_EQ(last_allocated_block, 7UL); + } + ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->ClearTrace(); +} + +// Test that the two ways to get children file attributes (in bulk or +// individually) behave consistently. +TEST_P(EnvPosixTestWithParam, ConsistentChildrenAttributes) { + ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->EnableProcessing(); + EnvOptions soptions; + soptions.use_direct_reads = soptions.use_direct_writes = direct_io_; + const int kNumChildren = 10; + + std::string data; + for (int i = 0; i < kNumChildren; ++i) { + const std::string path = + test::TmpDir(env_) + "/" + "testfile_" + std::to_string(i); + std::unique_ptr<WritableFile> file; +#if !defined(OS_MACOSX) && !defined(OS_WIN) && !defined(OS_SOLARIS) && !defined(OS_AIX) && !defined(OS_OPENBSD) && !defined(OS_FREEBSD) + if (soptions.use_direct_writes) { + ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->SetCallBack( + "NewWritableFile:O_DIRECT", [&](void* arg) { + int* val = static_cast<int*>(arg); + *val &= ~O_DIRECT; + }); + } +#endif + ASSERT_OK(env_->NewWritableFile(path, &file, soptions)); + auto buf_ptr = NewAligned(data.size(), 'T'); + Slice buf(buf_ptr.get(), data.size()); + file->Append(buf); + data.append(std::string(4096, 'T')); + } + + std::vector<Env::FileAttributes> file_attrs; + ASSERT_OK(env_->GetChildrenFileAttributes(test::TmpDir(env_), &file_attrs)); + for (int i = 0; i < kNumChildren; ++i) { + const std::string name = "testfile_" + std::to_string(i); + const std::string path = test::TmpDir(env_) + "/" + name; + + auto file_attrs_iter = std::find_if( + file_attrs.begin(), file_attrs.end(), + [&name](const Env::FileAttributes& fm) { return fm.name == name; }); + ASSERT_TRUE(file_attrs_iter != file_attrs.end()); + uint64_t size; + ASSERT_OK(env_->GetFileSize(path, &size)); + ASSERT_EQ(size, 4096 * i); + ASSERT_EQ(size, file_attrs_iter->size_bytes); + } + ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->ClearTrace(); +} + +// Test that all WritableFileWrapper forwards all calls to WritableFile. +TEST_P(EnvPosixTestWithParam, WritableFileWrapper) { + class Base : public WritableFile { + public: + mutable int *step_; + + void inc(int x) const { + EXPECT_EQ(x, (*step_)++); + } + + explicit Base(int* step) : step_(step) { + inc(0); + } + + Status Append(const Slice& /*data*/) override { + inc(1); + return Status::OK(); + } + + Status PositionedAppend(const Slice& /*data*/, + uint64_t /*offset*/) override { + inc(2); + return Status::OK(); + } + + Status Truncate(uint64_t /*size*/) override { + inc(3); + return Status::OK(); + } + + Status Close() override { + inc(4); + return Status::OK(); + } + + Status Flush() override { + inc(5); + return Status::OK(); + } + + Status Sync() override { + inc(6); + return Status::OK(); + } + + Status Fsync() override { + inc(7); + return Status::OK(); + } + + bool IsSyncThreadSafe() const override { + inc(8); + return true; + } + + bool use_direct_io() const override { + inc(9); + return true; + } + + size_t GetRequiredBufferAlignment() const override { + inc(10); + return 0; + } + + void SetIOPriority(Env::IOPriority /*pri*/) override { inc(11); } + + Env::IOPriority GetIOPriority() override { + inc(12); + return Env::IOPriority::IO_LOW; + } + + void SetWriteLifeTimeHint(Env::WriteLifeTimeHint /*hint*/) override { + inc(13); + } + + Env::WriteLifeTimeHint GetWriteLifeTimeHint() override { + inc(14); + return Env::WriteLifeTimeHint::WLTH_NOT_SET; + } + + uint64_t GetFileSize() override { + inc(15); + return 0; + } + + void SetPreallocationBlockSize(size_t /*size*/) override { inc(16); } + + void GetPreallocationStatus(size_t* /*block_size*/, + size_t* /*last_allocated_block*/) override { + inc(17); + } + + size_t GetUniqueId(char* /*id*/, size_t /*max_size*/) const override { + inc(18); + return 0; + } + + Status InvalidateCache(size_t /*offset*/, size_t /*length*/) override { + inc(19); + return Status::OK(); + } + + Status RangeSync(uint64_t /*offset*/, uint64_t /*nbytes*/) override { + inc(20); + return Status::OK(); + } + + void PrepareWrite(size_t /*offset*/, size_t /*len*/) override { inc(21); } + + Status Allocate(uint64_t /*offset*/, uint64_t /*len*/) override { + inc(22); + return Status::OK(); + } + + public: + ~Base() override { inc(23); } + }; + + class Wrapper : public WritableFileWrapper { + public: + explicit Wrapper(WritableFile* target) : WritableFileWrapper(target) {} + }; + + int step = 0; + + { + Base b(&step); + Wrapper w(&b); + w.Append(Slice()); + w.PositionedAppend(Slice(), 0); + w.Truncate(0); + w.Close(); + w.Flush(); + w.Sync(); + w.Fsync(); + w.IsSyncThreadSafe(); + w.use_direct_io(); + w.GetRequiredBufferAlignment(); + w.SetIOPriority(Env::IOPriority::IO_HIGH); + w.GetIOPriority(); + w.SetWriteLifeTimeHint(Env::WriteLifeTimeHint::WLTH_NOT_SET); + w.GetWriteLifeTimeHint(); + w.GetFileSize(); + w.SetPreallocationBlockSize(0); + w.GetPreallocationStatus(nullptr, nullptr); + w.GetUniqueId(nullptr, 0); + w.InvalidateCache(0, 0); + w.RangeSync(0, 0); + w.PrepareWrite(0, 0); + w.Allocate(0, 0); + } + + EXPECT_EQ(24, step); +} + +TEST_P(EnvPosixTestWithParam, PosixRandomRWFile) { + const std::string path = test::PerThreadDBPath(env_, "random_rw_file"); + + env_->DeleteFile(path); + + std::unique_ptr<RandomRWFile> file; + + // Cannot open non-existing file. + ASSERT_NOK(env_->NewRandomRWFile(path, &file, EnvOptions())); + + // Create the file using WriteableFile + { + std::unique_ptr<WritableFile> wf; + ASSERT_OK(env_->NewWritableFile(path, &wf, EnvOptions())); + } + + ASSERT_OK(env_->NewRandomRWFile(path, &file, EnvOptions())); + + char buf[10000]; + Slice read_res; + + ASSERT_OK(file->Write(0, "ABCD")); + ASSERT_OK(file->Read(0, 10, &read_res, buf)); + ASSERT_EQ(read_res.ToString(), "ABCD"); + + ASSERT_OK(file->Write(2, "XXXX")); + ASSERT_OK(file->Read(0, 10, &read_res, buf)); + ASSERT_EQ(read_res.ToString(), "ABXXXX"); + + ASSERT_OK(file->Write(10, "ZZZ")); + ASSERT_OK(file->Read(10, 10, &read_res, buf)); + ASSERT_EQ(read_res.ToString(), "ZZZ"); + + ASSERT_OK(file->Write(11, "Y")); + ASSERT_OK(file->Read(10, 10, &read_res, buf)); + ASSERT_EQ(read_res.ToString(), "ZYZ"); + + ASSERT_OK(file->Write(200, "FFFFF")); + ASSERT_OK(file->Read(200, 10, &read_res, buf)); + ASSERT_EQ(read_res.ToString(), "FFFFF"); + + ASSERT_OK(file->Write(205, "XXXX")); + ASSERT_OK(file->Read(200, 10, &read_res, buf)); + ASSERT_EQ(read_res.ToString(), "FFFFFXXXX"); + + ASSERT_OK(file->Write(5, "QQQQ")); + ASSERT_OK(file->Read(0, 9, &read_res, buf)); + ASSERT_EQ(read_res.ToString(), "ABXXXQQQQ"); + + ASSERT_OK(file->Read(2, 4, &read_res, buf)); + ASSERT_EQ(read_res.ToString(), "XXXQ"); + + // Close file and reopen it + file->Close(); + ASSERT_OK(env_->NewRandomRWFile(path, &file, EnvOptions())); + + ASSERT_OK(file->Read(0, 9, &read_res, buf)); + ASSERT_EQ(read_res.ToString(), "ABXXXQQQQ"); + + ASSERT_OK(file->Read(10, 3, &read_res, buf)); + ASSERT_EQ(read_res.ToString(), "ZYZ"); + + ASSERT_OK(file->Read(200, 9, &read_res, buf)); + ASSERT_EQ(read_res.ToString(), "FFFFFXXXX"); + + ASSERT_OK(file->Write(4, "TTTTTTTTTTTTTTTT")); + ASSERT_OK(file->Read(0, 10, &read_res, buf)); + ASSERT_EQ(read_res.ToString(), "ABXXTTTTTT"); + + // Clean up + env_->DeleteFile(path); +} + +class RandomRWFileWithMirrorString { + public: + explicit RandomRWFileWithMirrorString(RandomRWFile* _file) : file_(_file) {} + + void Write(size_t offset, const std::string& data) { + // Write to mirror string + StringWrite(offset, data); + + // Write to file + Status s = file_->Write(offset, data); + ASSERT_OK(s) << s.ToString(); + } + + void Read(size_t offset = 0, size_t n = 1000000) { + Slice str_res(nullptr, 0); + if (offset < file_mirror_.size()) { + size_t str_res_sz = std::min(file_mirror_.size() - offset, n); + str_res = Slice(file_mirror_.data() + offset, str_res_sz); + StopSliceAtNull(&str_res); + } + + Slice file_res; + Status s = file_->Read(offset, n, &file_res, buf_); + ASSERT_OK(s) << s.ToString(); + StopSliceAtNull(&file_res); + + ASSERT_EQ(str_res.ToString(), file_res.ToString()) << offset << " " << n; + } + + void SetFile(RandomRWFile* _file) { file_ = _file; } + + private: + void StringWrite(size_t offset, const std::string& src) { + if (offset + src.size() > file_mirror_.size()) { + file_mirror_.resize(offset + src.size(), '\0'); + } + + char* pos = const_cast<char*>(file_mirror_.data() + offset); + memcpy(pos, src.data(), src.size()); + } + + void StopSliceAtNull(Slice* slc) { + for (size_t i = 0; i < slc->size(); i++) { + if ((*slc)[i] == '\0') { + *slc = Slice(slc->data(), i); + break; + } + } + } + + char buf_[10000]; + RandomRWFile* file_; + std::string file_mirror_; +}; + +TEST_P(EnvPosixTestWithParam, PosixRandomRWFileRandomized) { + const std::string path = test::PerThreadDBPath(env_, "random_rw_file_rand"); + env_->DeleteFile(path); + + std::unique_ptr<RandomRWFile> file; + +#ifdef OS_LINUX + // Cannot open non-existing file. + ASSERT_NOK(env_->NewRandomRWFile(path, &file, EnvOptions())); +#endif + + // Create the file using WriteableFile + { + std::unique_ptr<WritableFile> wf; + ASSERT_OK(env_->NewWritableFile(path, &wf, EnvOptions())); + } + + ASSERT_OK(env_->NewRandomRWFile(path, &file, EnvOptions())); + RandomRWFileWithMirrorString file_with_mirror(file.get()); + + Random rnd(301); + std::string buf; + for (int i = 0; i < 10000; i++) { + // Genrate random data + test::RandomString(&rnd, 10, &buf); + + // Pick random offset for write + size_t write_off = rnd.Next() % 1000; + file_with_mirror.Write(write_off, buf); + + // Pick random offset for read + size_t read_off = rnd.Next() % 1000; + size_t read_sz = rnd.Next() % 20; + file_with_mirror.Read(read_off, read_sz); + + if (i % 500 == 0) { + // Reopen the file every 500 iters + ASSERT_OK(env_->NewRandomRWFile(path, &file, EnvOptions())); + file_with_mirror.SetFile(file.get()); + } + } + + // clean up + env_->DeleteFile(path); +} + +class TestEnv : public EnvWrapper { + public: + explicit TestEnv() : EnvWrapper(Env::Default()), + close_count(0) { } + + class TestLogger : public Logger { + public: + using Logger::Logv; + TestLogger(TestEnv* env_ptr) : Logger() { env = env_ptr; } + ~TestLogger() override { + if (!closed_) { + CloseHelper(); + } + } + void Logv(const char* /*format*/, va_list /*ap*/) override{}; + + protected: + Status CloseImpl() override { return CloseHelper(); } + + private: + Status CloseHelper() { + env->CloseCountInc();; + return Status::OK(); + } + TestEnv* env; + }; + + void CloseCountInc() { close_count++; } + + int GetCloseCount() { return close_count; } + + Status NewLogger(const std::string& /*fname*/, + std::shared_ptr<Logger>* result) override { + result->reset(new TestLogger(this)); + return Status::OK(); + } + + private: + int close_count; +}; + +class EnvTest : public testing::Test {}; + +TEST_F(EnvTest, Close) { + TestEnv* env = new TestEnv(); + std::shared_ptr<Logger> logger; + Status s; + + s = env->NewLogger("", &logger); + ASSERT_EQ(s, Status::OK()); + logger.get()->Close(); + ASSERT_EQ(env->GetCloseCount(), 1); + // Call Close() again. CloseHelper() should not be called again + logger.get()->Close(); + ASSERT_EQ(env->GetCloseCount(), 1); + logger.reset(); + ASSERT_EQ(env->GetCloseCount(), 1); + + s = env->NewLogger("", &logger); + ASSERT_EQ(s, Status::OK()); + logger.reset(); + ASSERT_EQ(env->GetCloseCount(), 2); + + delete env; +} + +INSTANTIATE_TEST_CASE_P(DefaultEnvWithoutDirectIO, EnvPosixTestWithParam, + ::testing::Values(std::pair<Env*, bool>(Env::Default(), + false))); +#if !defined(ROCKSDB_LITE) +INSTANTIATE_TEST_CASE_P(DefaultEnvWithDirectIO, EnvPosixTestWithParam, + ::testing::Values(std::pair<Env*, bool>(Env::Default(), + true))); +#endif // !defined(ROCKSDB_LITE) + +#if !defined(ROCKSDB_LITE) && !defined(OS_WIN) +static std::unique_ptr<Env> chroot_env( + NewChrootEnv(Env::Default(), test::TmpDir(Env::Default()))); +INSTANTIATE_TEST_CASE_P( + ChrootEnvWithoutDirectIO, EnvPosixTestWithParam, + ::testing::Values(std::pair<Env*, bool>(chroot_env.get(), false))); +INSTANTIATE_TEST_CASE_P( + ChrootEnvWithDirectIO, EnvPosixTestWithParam, + ::testing::Values(std::pair<Env*, bool>(chroot_env.get(), true))); +#endif // !defined(ROCKSDB_LITE) && !defined(OS_WIN) + +} // namespace ROCKSDB_NAMESPACE + +int main(int argc, char** argv) { + ::testing::InitGoogleTest(&argc, argv); + return RUN_ALL_TESTS(); +} |