rocksdb/util/env.cc
Dmitri Smirnov d1a457181d Ensure Windows build w/o port/port.h in public headers
- Remove make file defines from public headers and use _WIN32 because it is compiler defined
 - use __GNUC__ and __clang__ to guard non-portable attributes
 - add #include "port/port.h" to some new .cc files.
 - minor changes in CMakeLists to reflect recent changes
2015-07-16 12:10:16 -07:00

312 lines
7.7 KiB
C++

// Copyright (c) 2013, Facebook, Inc. All rights reserved.
// This source code is licensed under the BSD-style license found in the
// LICENSE file in the root directory of this source tree. An additional grant
// of patent rights can be found in the PATENTS file in the same 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.
#include "rocksdb/env.h"
#include <thread>
#include "port/port.h"
#include "port/sys_time.h"
#include "port/port.h"
#include "rocksdb/options.h"
#include "util/arena.h"
#include "util/autovector.h"
namespace rocksdb {
Env::~Env() {
}
uint64_t Env::GetThreadID() const {
std::hash<std::thread::id> hasher;
return hasher(std::this_thread::get_id());
}
SequentialFile::~SequentialFile() {
}
RandomAccessFile::~RandomAccessFile() {
}
WritableFile::~WritableFile() {
}
Logger::~Logger() {
}
FileLock::~FileLock() {
}
void LogFlush(Logger *info_log) {
if (info_log) {
info_log->Flush();
}
}
void Log(Logger* info_log, const char* format, ...) {
if (info_log && info_log->GetInfoLogLevel() <= InfoLogLevel::INFO_LEVEL) {
va_list ap;
va_start(ap, format);
info_log->Logv(InfoLogLevel::INFO_LEVEL, format, ap);
va_end(ap);
}
}
void Logger::Logv(const InfoLogLevel log_level, const char* format, va_list ap) {
static const char* kInfoLogLevelNames[5] = { "DEBUG", "INFO", "WARN",
"ERROR", "FATAL" };
if (log_level < log_level_) {
return;
}
if (log_level == InfoLogLevel::INFO_LEVEL) {
// Doesn't print log level if it is INFO level.
// This is to avoid unexpected performance regression after we add
// the feature of log level. All the logs before we add the feature
// are INFO level. We don't want to add extra costs to those existing
// logging.
Logv(format, ap);
} else {
char new_format[500];
snprintf(new_format, sizeof(new_format) - 1, "[%s] %s",
kInfoLogLevelNames[log_level], format);
Logv(new_format, ap);
}
}
void Log(const InfoLogLevel log_level, Logger* info_log, const char* format,
...) {
if (info_log && info_log->GetInfoLogLevel() <= log_level) {
va_list ap;
va_start(ap, format);
if (log_level == InfoLogLevel::HEADER_LEVEL) {
info_log->LogHeader(format, ap);
} else {
info_log->Logv(log_level, format, ap);
}
va_end(ap);
}
}
void Header(Logger* info_log, const char* format, ...) {
if (info_log) {
va_list ap;
va_start(ap, format);
info_log->LogHeader(format, ap);
va_end(ap);
}
}
void Debug(Logger* info_log, const char* format, ...) {
if (info_log && info_log->GetInfoLogLevel() <= InfoLogLevel::DEBUG_LEVEL) {
va_list ap;
va_start(ap, format);
info_log->Logv(InfoLogLevel::DEBUG_LEVEL, format, ap);
va_end(ap);
}
}
void Info(Logger* info_log, const char* format, ...) {
if (info_log && info_log->GetInfoLogLevel() <= InfoLogLevel::INFO_LEVEL) {
va_list ap;
va_start(ap, format);
info_log->Logv(InfoLogLevel::INFO_LEVEL, format, ap);
va_end(ap);
}
}
void Warn(Logger* info_log, const char* format, ...) {
if (info_log && info_log->GetInfoLogLevel() <= InfoLogLevel::WARN_LEVEL) {
va_list ap;
va_start(ap, format);
info_log->Logv(InfoLogLevel::WARN_LEVEL, format, ap);
va_end(ap);
}
}
void Error(Logger* info_log, const char* format, ...) {
if (info_log && info_log->GetInfoLogLevel() <= InfoLogLevel::ERROR_LEVEL) {
va_list ap;
va_start(ap, format);
info_log->Logv(InfoLogLevel::ERROR_LEVEL, format, ap);
va_end(ap);
}
}
void Fatal(Logger* info_log, const char* format, ...) {
if (info_log && info_log->GetInfoLogLevel() <= InfoLogLevel::FATAL_LEVEL) {
va_list ap;
va_start(ap, format);
info_log->Logv(InfoLogLevel::FATAL_LEVEL, format, ap);
va_end(ap);
}
}
void LogFlush(const shared_ptr<Logger>& info_log) {
if (info_log) {
info_log->Flush();
}
}
void Log(const InfoLogLevel log_level, const shared_ptr<Logger>& info_log,
const char* format, ...) {
if (info_log) {
va_list ap;
va_start(ap, format);
info_log->Logv(log_level, format, ap);
va_end(ap);
}
}
void Header(const shared_ptr<Logger>& info_log, const char* format, ...) {
if (info_log) {
va_list ap;
va_start(ap, format);
info_log->LogHeader(format, ap);
va_end(ap);
}
}
void Debug(const shared_ptr<Logger>& info_log, const char* format, ...) {
if (info_log) {
va_list ap;
va_start(ap, format);
info_log->Logv(InfoLogLevel::DEBUG_LEVEL, format, ap);
va_end(ap);
}
}
void Info(const shared_ptr<Logger>& info_log, const char* format, ...) {
if (info_log) {
va_list ap;
va_start(ap, format);
info_log->Logv(InfoLogLevel::INFO_LEVEL, format, ap);
va_end(ap);
}
}
void Warn(const shared_ptr<Logger>& info_log, const char* format, ...) {
if (info_log) {
va_list ap;
va_start(ap, format);
info_log->Logv(InfoLogLevel::WARN_LEVEL, format, ap);
va_end(ap);
}
}
void Error(const shared_ptr<Logger>& info_log, const char* format, ...) {
if (info_log) {
va_list ap;
va_start(ap, format);
info_log->Logv(InfoLogLevel::ERROR_LEVEL, format, ap);
va_end(ap);
}
}
void Fatal(const shared_ptr<Logger>& info_log, const char* format, ...) {
if (info_log) {
va_list ap;
va_start(ap, format);
info_log->Logv(InfoLogLevel::FATAL_LEVEL, format, ap);
va_end(ap);
}
}
void Log(const shared_ptr<Logger>& info_log, const char* format, ...) {
if (info_log) {
va_list ap;
va_start(ap, format);
info_log->Logv(InfoLogLevel::INFO_LEVEL, format, ap);
va_end(ap);
}
}
Status WriteStringToFile(Env* env, const Slice& data, const std::string& fname,
bool should_sync) {
unique_ptr<WritableFile> file;
EnvOptions soptions;
Status s = env->NewWritableFile(fname, &file, soptions);
if (!s.ok()) {
return s;
}
s = file->Append(data);
if (s.ok() && should_sync) {
s = file->Sync();
}
if (!s.ok()) {
env->DeleteFile(fname);
}
return s;
}
Status ReadFileToString(Env* env, const std::string& fname, std::string* data) {
EnvOptions soptions;
data->clear();
unique_ptr<SequentialFile> file;
Status s = env->NewSequentialFile(fname, &file, soptions);
if (!s.ok()) {
return s;
}
static const int kBufferSize = 8192;
char* space = new char[kBufferSize];
while (true) {
Slice fragment;
s = file->Read(kBufferSize, &fragment, space);
if (!s.ok()) {
break;
}
data->append(fragment.data(), fragment.size());
if (fragment.empty()) {
break;
}
}
delete[] space;
return s;
}
EnvWrapper::~EnvWrapper() {
}
namespace { // anonymous namespace
void AssignEnvOptions(EnvOptions* env_options, const DBOptions& options) {
env_options->use_os_buffer = options.allow_os_buffer;
env_options->use_mmap_reads = options.allow_mmap_reads;
env_options->use_mmap_writes = options.allow_mmap_writes;
env_options->set_fd_cloexec = options.is_fd_close_on_exec;
env_options->bytes_per_sync = options.bytes_per_sync;
env_options->rate_limiter = options.rate_limiter.get();
}
}
EnvOptions Env::OptimizeForLogWrite(const EnvOptions& env_options,
const DBOptions& db_options) const {
EnvOptions optimized_env_options(env_options);
optimized_env_options.bytes_per_sync = db_options.wal_bytes_per_sync;
return optimized_env_options;
}
EnvOptions Env::OptimizeForManifestWrite(const EnvOptions& env_options) const {
return env_options;
}
EnvOptions::EnvOptions(const DBOptions& options) {
AssignEnvOptions(this, options);
}
EnvOptions::EnvOptions() {
DBOptions options;
AssignEnvOptions(this, options);
}
} // namespace rocksdb