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/*
* Copyright (C) 2016 The Android Open Source Project
*
* Permission is hereby granted, free of charge, to any person
* obtaining a copy of this software and associated documentation
* files (the "Software"), to deal in the Software without
* restriction, including without limitation the rights to use, copy,
* modify, merge, publish, distribute, sublicense, and/or sell copies
* of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#ifndef ATAP_OPS_PROVIDER_H_
#define ATAP_OPS_PROVIDER_H_
#include "atap_ops_delegate.h"
namespace atap {
// An implementation of ops callbacks that forwards to a given delegate. All
// instances of this class must be created on the same thread. A delegate must
// be provided either in the constructor or set_delegate() before using the
// AtapOps returned by atap_ops().
class AtapOpsProvider {
public:
AtapOpsProvider();
AtapOpsProvider(AtapOpsDelegate* delegate);
virtual ~AtapOpsProvider();
static AtapOpsProvider* GetInstanceFromAtapOps(AtapOps* ops) {
return reinterpret_cast<AtapOpsProvider*>(ops->user_data);
}
AtapOps* atap_ops() {
atap_assert(delegate_);
return &atap_ops_;
}
AtapOpsDelegate* delegate() {
return delegate_;
}
// Does not take ownership of |delegate|.
void set_delegate(AtapOpsDelegate* delegate) {
delegate_ = delegate;
}
private:
void setup_ops();
AtapOps atap_ops_;
AtapOpsDelegate* delegate_{nullptr};
};
} // namespace atap
#endif /* ATAP_OPS_PROVIDER_H_ */