| /* |
| * 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. |
| */ |
| |
| #ifndef SYSTEM_PROPERTIES_CONTEXT_NODE_H |
| #define SYSTEM_PROPERTIES_CONTEXT_NODE_H |
| |
| #include "private/bionic_lock.h" |
| |
| #include "prop_area.h" |
| |
| class ContextNode { |
| public: |
| ContextNode(const char* context) : context_(context), pa_(nullptr), no_access_(false) { |
| lock_.init(false); |
| } |
| ~ContextNode() { |
| Unmap(); |
| } |
| bool Open(bool access_rw, bool* fsetxattr_failed); |
| bool CheckAccessAndOpen(); |
| void ResetAccess(); |
| |
| const char* context() const { |
| return context_; |
| } |
| prop_area* pa() { |
| return pa_; |
| } |
| |
| private: |
| bool CheckAccess(); |
| void Unmap(); |
| |
| Lock lock_; |
| const char* context_; |
| prop_area* pa_; |
| bool no_access_; |
| }; |
| |
| #endif |