832b056a30
Summary: Introduce io_timeout in ReadOptions and enabled deadline/io_timeout for Iterators. Pull Request resolved: https://github.com/facebook/rocksdb/pull/7161 Test Plan: New unit tests in db_basic_test Reviewed By: riversand963 Differential Revision: D22687352 Pulled By: anand1976 fbshipit-source-id: 67bbb0e6d7ae80b256589244468494292538c6ec
67 lines
2.4 KiB
C++
67 lines
2.4 KiB
C++
// Copyright (c) 2011-present, Facebook, Inc. All rights reserved.
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// This source code is licensed under both the GPLv2 (found in the
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// COPYING file in the root directory) and Apache 2.0 License
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// (found in the LICENSE.Apache file in the root directory).
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//
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#pragma once
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#include <string>
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#include "file/filename.h"
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#include "options/db_options.h"
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#include "rocksdb/env.h"
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#include "rocksdb/file_system.h"
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#include "rocksdb/sst_file_writer.h"
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#include "rocksdb/status.h"
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#include "rocksdb/types.h"
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namespace ROCKSDB_NAMESPACE {
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// use_fsync maps to options.use_fsync, which determines the way that
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// the file is synced after copying.
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extern IOStatus CopyFile(FileSystem* fs, const std::string& source,
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const std::string& destination, uint64_t size,
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bool use_fsync);
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extern IOStatus CreateFile(FileSystem* fs, const std::string& destination,
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const std::string& contents, bool use_fsync);
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extern Status DeleteDBFile(const ImmutableDBOptions* db_options,
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const std::string& fname,
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const std::string& path_to_sync, const bool force_bg,
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const bool force_fg);
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extern bool IsWalDirSameAsDBPath(const ImmutableDBOptions* db_options);
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extern IOStatus GenerateOneFileChecksum(
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FileSystem* fs, const std::string& file_path,
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FileChecksumGenFactory* checksum_factory, std::string* file_checksum,
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std::string* file_checksum_func_name,
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size_t verify_checksums_readahead_size, bool allow_mmap_reads);
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inline IOStatus PrepareIOFromReadOptions(const ReadOptions& ro, Env* env,
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IOOptions& opts) {
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if (!env) {
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env = Env::Default();
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}
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if (ro.deadline.count()) {
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std::chrono::microseconds now = std::chrono::microseconds(env->NowMicros());
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// Ensure there is atleast 1us available. We don't want to pass a value of
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// 0 as that means no timeout
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if (now >= ro.deadline) {
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return IOStatus::TimedOut("Deadline exceeded");
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}
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opts.timeout = ro.deadline - now;
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}
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if (ro.io_timeout.count() &&
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(!opts.timeout.count() || ro.io_timeout < opts.timeout)) {
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opts.timeout = ro.io_timeout;
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}
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return IOStatus::OK();
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}
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// Test method to delete the input directory and all of its contents.
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// This method is destructive and is meant for use only in tests!!!
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Status DestroyDir(Env* env, const std::string& dir);
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} // namespace ROCKSDB_NAMESPACE
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