Files
netris-cdc-file-transfer/common/errno_mapping.h
ljusten 23fcd5ef1d Improve cdc_fuse_fs and path (#2)
Improve cdc_fuse_fs and path

Improves the error handling in path so that std:error_codes are not
assumed to be of system category, and also that their messages are
displayed. Also improves debug messages in GameletComponent.
2022-11-15 12:53:02 +01:00

56 lines
2.0 KiB
C++

/*
* Copyright 2022 Google LLC
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef COMMON_ERRNO_MAPPING_H_
#define COMMON_ERRNO_MAPPING_H_
#include <string>
#include "absl/status/status.h"
#include "absl/strings/str_format.h"
namespace cdc_ft {
// Converts the errno |error_number| to an absl code.
absl::StatusCode ErrnoToCanonicalCode(int error_number);
// Creates a status by converting the errno |error_number| to an absl code.
template <typename... Args>
absl::Status ErrnoToCanonicalStatus(int error_number,
const absl::FormatSpec<Args...>& format,
Args... args) {
if (error_number == 0) return absl::OkStatus();
std::string msg = absl::StrFormat(format, args...);
return absl::Status(ErrnoToCanonicalCode(error_number),
absl::StrCat(msg, ": ", strerror(error_number)));
}
template <typename... Args>
absl::Status ErrorCodeToCanonicalStatus(const std::error_code& code,
const absl::FormatSpec<Args...>& format,
Args... args) {
if (!code) return absl::OkStatus();
std::string msg = absl::StrFormat(format, args...);
absl::StatusCode absl_code = code.category() == std::system_category()
? ErrnoToCanonicalCode(code.value())
: absl::StatusCode::kUnknown;
return absl::Status(absl_code, absl::StrCat(msg, ": ", code.message()));
}
} // namespace cdc_ft
#endif // COMMON_ERRNO_MAPPING_H_