mirror of
https://github.com/openharmony/drivers_framework.git
synced 2026-07-21 03:35:25 -04:00
gonghui
43 lines
963 B
C
43 lines
963 B
C
/*
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* Copyright (c) 2020-2021 Huawei Device Co., Ltd.
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*
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* HDF is dual licensed: you can use it either under the terms of
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* the GPL, or the BSD license, at your option.
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* See the LICENSE file in the root of this repository for complete details.
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*/
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#ifndef HDF_SREF_H
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#define HDF_SREF_H
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#include "osal_atomic.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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struct HdfSRef;
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struct IHdfSRefListener {
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void (*OnFirstAcquire)(struct HdfSRef *);
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void (*OnLastRelease)(struct HdfSRef *);
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};
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struct HdfSRef {
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OsalAtomic refs;
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struct IHdfSRefListener *listener;
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void (*Acquire)(struct HdfSRef *);
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void (*Release)(struct HdfSRef *);
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int (*Count)(const struct HdfSRef *);
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};
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void HdfSRefAcquire(struct HdfSRef *sref);
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void HdfSRefRelease(struct HdfSRef *sref);
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int HdfSRefCount(const struct HdfSRef *sref);
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void HdfSRefConstruct(struct HdfSRef *sref, struct IHdfSRefListener *listener);
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#ifdef __cplusplus
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}
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#endif
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#endif /* HDF_SREF_H */
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