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https://github.com/nestriness/cdc-file-transfer.git
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4326e972ac
The tools allow efficient and fast synchronization of large directory trees from a Windows workstation to a Linux target machine. cdc_rsync* support efficient copy of files by using content-defined chunking (CDC) to identify chunks within files that can be reused. asset_stream_manager + cdc_fuse_fs support efficient streaming of a local directory to a remote virtual file system based on FUSE. It also employs CDC to identify and reuse unchanged data chunks.
65 lines
1.9 KiB
C++
65 lines
1.9 KiB
C++
// Copyright 2022 Google LLC
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#include "common/clock.h"
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#include "absl/strings/str_format.h"
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#include "common/platform.h"
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namespace cdc_ft {
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// static
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DefaultSteadyClock* DefaultSteadyClock::GetInstance() {
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static DefaultSteadyClock instance;
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return &instance;
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}
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SteadyClock::Timestamp DefaultSteadyClock::Now() const {
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return std::chrono::steady_clock::now();
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}
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std::string SystemClock::FormatNow(const char* format,
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bool append_millis) const {
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const Timestamp now = Now();
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const std::time_t now_t = std::chrono::system_clock::to_time_t(now);
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tm now_tm;
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#if PLATFORM_WINDOWS
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localtime_s(&now_tm, &now_t);
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#elif PLATFORM_LINUX
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localtime_r(&now_t, &now_tm);
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#endif
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std::stringstream ss;
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ss << std::put_time(&now_tm, format);
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if (append_millis) {
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const int millis = std::chrono::duration_cast<std::chrono::milliseconds>(
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now - std::chrono::system_clock::from_time_t(now_t))
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.count();
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ss << std::setfill('0') << std::setw(3) << millis;
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}
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return ss.str();
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}
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// static
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DefaultSystemClock* DefaultSystemClock::GetInstance() {
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static DefaultSystemClock instance;
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return &instance;
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}
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SystemClock::Timestamp DefaultSystemClock::Now() const {
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return std::chrono::system_clock::now();
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}
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} // namespace cdc_ft
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