Xin Zhang
/
azure-iot-c-sdk-f767zi
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c-utility/pal/generic/refcount_os.h
- Committer:
- XinZhangMS
- Date:
- 2018-08-23
- Revision:
- 0:f7f1f0d76dd6
File content as of revision 0:f7f1f0d76dd6:
// Copyright (c) Microsoft. All rights reserved.
// Licensed under the MIT license. See LICENSE file in the project root for full license information.
// This file gets included into refcount.h as a means of extending the behavior of
// atomic increment, decrement, and test.
//
// The Azure IoT C SDK does not require thread-safe refcount operations, so
// this file is appropriate for any device when using the Azure IoT C SDK.
#ifndef REFCOUNT_OS_H__GENERIC
#define REFCOUNT_OS_H__GENERIC
#define COUNT_TYPE uint32_t
#define DEC_RETURN_ZERO (0)
#define INC_REF(type, var) ++((((REFCOUNT_TYPE(type)*)var)->count))
#define DEC_REF(type, var) --((((REFCOUNT_TYPE(type)*)var)->count))
#define INIT_REF(type, var) do { ((REFCOUNT_TYPE(type)*)var)->count = 1; } while((void)0,0)
#endif // REFCOUNT_OS_H__GENERIC