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// Copyright 2021 The Fuchsia Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef LIB_LAZY_INIT_OPTIONS_H_
#define LIB_LAZY_INIT_OPTIONS_H_
namespace lazy_init {
// Enum that specifies what kind of debug init checks to perform for a
// lazy-initialized global variable.
enum class CheckType {
// No checks are performed.
None,
// Initialization checks are performed. If multiple threads will access the
// global variable, initialization must be manually serialized with respect
// to the guard variable.
Basic,
// Initialization checks are performed using atomic operations. Checks are
// guaranteed to be consistent, even when races occur over initialization.
Atomic,
// The default check type as specified by the build. This is the check type
// used when not explicitly specified. It may also be specified explicitly
// to defer to the build configuration when setting other options.
// TODO(eieio): Add the build arg and conditional logic.
Default = None,
};
// Enum that specifies whether to enable a lazy-initialized global variable's
// destructor. Disabling global destructors avoids destructor registration.
// However, destructors can be conditionally enabled on builds that require
// them, such as ASAN.
enum class Destructor {
Disabled,
Enabled,
// The default destructor enablement as specified by the build. This is the
// enablement used when not explicitly specified. It may also be specified
// explicitly to defer to the build configuration when setting other
// options.
// TODO(eieio): Add the build arg and conditional logic.
Default = Disabled,
};
} // namespace lazy_init
#endif // LIB_LAZY_INIT_OPTIONS_H_
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