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Diffstat (limited to 'test/util/eventfd_util.h')
-rw-r--r-- | test/util/eventfd_util.h | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/test/util/eventfd_util.h b/test/util/eventfd_util.h new file mode 100644 index 000000000..cb9ce829c --- /dev/null +++ b/test/util/eventfd_util.h @@ -0,0 +1,43 @@ +// Copyright 2019 The gVisor Authors. +// +// 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_ |