Magisk/native/jni/systemproperties/include/system_properties/contexts_pre_split.h
2018-09-27 03:30:16 -04:00

70 lines
2.5 KiB
C++

/*
* Copyright (C) 2008 The Android Open Source Project
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#pragma once
#include "contexts.h"
#include "prop_area.h"
#include "prop_info.h"
class ContextsPreSplit : public Contexts {
public:
virtual ~ContextsPreSplit() override {
}
// We'll never initialize this legacy option as writable, so don't even check the arg.
virtual bool Initialize(bool, const char* filename, bool*) override {
pre_split_prop_area_ = prop_area::map_prop_area(filename);
return pre_split_prop_area_ != nullptr;
}
virtual prop_area* GetPropAreaForName(const char*) override {
return pre_split_prop_area_;
}
virtual prop_area* GetSerialPropArea() override {
return pre_split_prop_area_;
}
virtual void ForEach(void (*propfn)(const prop_info* pi, void* cookie), void* cookie) override {
pre_split_prop_area_->foreach (propfn, cookie);
}
// This is a no-op for pre-split properties as there is only one property file and it is
// accessible by all domains
virtual void ResetAccess() override {
}
virtual void FreeAndUnmap() override {
prop_area::unmap_prop_area(&pre_split_prop_area_);
}
private:
prop_area* pre_split_prop_area_ = nullptr;
};