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-/*
- * 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 _INCLUDE_SYS__SYSTEM_PROPERTIES_H
-#define _INCLUDE_SYS__SYSTEM_PROPERTIES_H
-
-#include <sys/cdefs.h>
-#include <stdbool.h>
-#include <stdint.h>
-
-#ifndef _REALLY_INCLUDE_SYS__SYSTEM_PROPERTIES_H_
-#error you should #include <sys/system_properties.h> instead
-#endif
-
-#include <sys/system_properties.h>
-
-__BEGIN_DECLS
-
-#define PROP_SERVICE_NAME "property_service"
-#define PROP_FILENAME "/dev/__properties__"
-
-#define PROP_MSG_SETPROP 1
-#define PROP_MSG_SETPROP2 0x00020001
-
-#define PROP_SUCCESS 0
-#define PROP_ERROR_READ_CMD 0x0004
-#define PROP_ERROR_READ_DATA 0x0008
-#define PROP_ERROR_READ_ONLY_PROPERTY 0x000B
-#define PROP_ERROR_INVALID_NAME 0x0010
-#define PROP_ERROR_INVALID_VALUE 0x0014
-#define PROP_ERROR_PERMISSION_DENIED 0x0018
-#define PROP_ERROR_INVALID_CMD 0x001B
-#define PROP_ERROR_HANDLE_CONTROL_MESSAGE 0x0020
-#define PROP_ERROR_SET_FAILED 0x0024
-
-/*
-** Map the property area from the specified filename. This
-** method is for testing only.
-*/
-int __system_property_set_filename(const char *filename);
-
-/*
-** Initialize the area to be used to store properties. Can
-** only be done by a single process that has write access to
-** the property area.
-*/
-int __system_property_area_init();
-
-/* Read the global serial number of the system properties
-**
-** Called to predict if a series of cached __system_property_find
-** objects will have seen __system_property_serial values change.
-** But also aids the converse, as changes in the global serial can
-** also be used to predict if a failed __system_property_find
-** could in-turn now find a new object; thus preventing the
-** cycles of effort to poll __system_property_find.
-**
-** Typically called at beginning of a cache cycle to signal if _any_ possible
-** changes have occurred since last. If there is, one may check each individual
-** __system_property_serial to confirm dirty, or __system_property_find
-** to check if the property now exists. If a call to __system_property_add
-** or __system_property_update has completed between two calls to
-** __system_property_area_serial then the second call will return a larger
-** value than the first call. Beware of race conditions as changes to the
-** properties are not atomic, the main value of this call is to determine
-** whether the expensive __system_property_find is worth retrying to see if
-** a property now exists.
-**
-** Returns the serial number on success, -1 on error.
-*/
-uint32_t __system_property_area_serial();
-
-/* Add a new system property. Can only be done by a single
-** process that has write access to the property area, and
-** that process must handle sequencing to ensure the property
-** does not already exist and that only one property is added
-** or updated at a time.
-**
-** Returns 0 on success, -1 if the property area is full.
-*/
-int __system_property_add(const char *name, unsigned int namelen, const char *value, unsigned int valuelen);
-
-/* Update the value of a system property returned by
-** __system_property_find. Can only be done by a single process
-** that has write access to the property area, and that process
-** must handle sequencing to ensure that only one property is
-** updated at a time.
-**
-** Returns 0 on success, -1 if the parameters are incorrect.
-*/
-int __system_property_update(prop_info *pi, const char *value, unsigned int len);
-
-/* Read the serial number of a system property returned by
-** __system_property_find.
-**
-** Returns the serial number on success, -1 on error.
-*/
-uint32_t __system_property_serial(const prop_info* pi);
-
-/*
- * Waits for the specific system property identified by `pi` to be updated
- * past `old_serial`. Waits no longer than `relative_timeout`, or forever
- * if `relaive_timeout` is null.
- *
- * If `pi` is null, waits for the global serial number instead.
- *
- * If you don't know the current serial, use 0.
- *
- * Returns true and updates `*new_serial_ptr` on success, or false if the call
- * timed out.
- */
-struct timespec;
-bool __system_property_wait(const prop_info* pi,
- uint32_t old_serial,
- uint32_t* new_serial_ptr,
- const struct timespec* relative_timeout)
- __INTRODUCED_IN_FUTURE;
-
-/* Initialize the system properties area in read only mode.
- * Should be done by all processes that need to read system
- * properties.
- *
- * Returns 0 on success, -1 otherwise.
- */
-int __system_properties_init();
-
-/* Deprecated: use __system_property_wait instead. */
-uint32_t __system_property_wait_any(uint32_t old_serial);
-
-__END_DECLS
-
-#endif