summaryrefslogtreecommitdiffstats
path: root/src/rocksdb/env/env_test.cc
diff options
context:
space:
mode:
Diffstat (limited to 'src/rocksdb/env/env_test.cc')
-rw-r--r--src/rocksdb/env/env_test.cc1895
1 files changed, 1895 insertions, 0 deletions
diff --git a/src/rocksdb/env/env_test.cc b/src/rocksdb/env/env_test.cc
new file mode 100644
index 000000000..98f73d9a9
--- /dev/null
+++ b/src/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();
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-08-01 23:39:19 +0000