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/*
* Copyright (C) 2021 The Android Open Source Project
*
* 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.
*/
#include "common/libs/utils/shared_fd_flag.h"
#include <unistd.h>
#include <functional>
#include <limits>
#include <memory>
#include <ostream>
#include <string>
#include <android-base/logging.h>
#include <android-base/parseint.h>
#include "common/libs/fs/shared_fd.h"
#include "common/libs/utils/flag_parser.h"
namespace cuttlefish {
static Result<void> Set(const FlagMatch& match, SharedFD& out) {
int raw_fd;
CF_EXPECTF(android::base::ParseInt(match.value.c_str(), &raw_fd),
"Failed to parse value \"{}\" for fd flag \"{}\"", match.value,
match.key);
out = SharedFD::Dup(raw_fd);
if (out->IsOpen()) {
close(raw_fd);
}
return {};
}
Flag SharedFDFlag(SharedFD& out) {
return Flag().Setter([&](const FlagMatch& mat) { return Set(mat, out); });
}
Flag SharedFDFlag(const std::string& name, SharedFD& out) {
return GflagsCompatFlag(name).Setter(
[&out](const FlagMatch& mat) { return Set(mat, out); });
}
} // namespace cuttlefish
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