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// Copyright 2019 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 GVISOR_TEST_UTIL_EVENTFD_UTIL_H_
#define GVISOR_TEST_UTIL_EVENTFD_UTIL_H_
#include <sys/eventfd.h>
#include <cerrno>
#include "test/util/file_descriptor.h"
#include "test/util/posix_error.h"
#include "test/util/save_util.h"
namespace gvisor {
namespace testing {
// Returns a new eventfd with the given initial value and flags.
inline PosixErrorOr<FileDescriptor> NewEventFD(unsigned int initval = 0,
int flags = 0) {
int fd = eventfd(initval, flags);
MaybeSave();
if (fd < 0) {
return PosixError(errno, "eventfd");
}
return FileDescriptor(fd);
}
} // namespace testing
} // namespace gvisor
#endif // GVISOR_TEST_UTIL_EVENTFD_UTIL_H_
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