mirror of
https://github.com/topjohnwu/Magisk.git
synced 2024-11-30 13:35:27 +00:00
103 lines
3.9 KiB
C
103 lines
3.9 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.
|
|
*/
|
|
|
|
#ifndef _INCLUDE_SYS_SYSTEM_PROPERTIES_H
|
|
#define _INCLUDE_SYS_SYSTEM_PROPERTIES_H
|
|
|
|
#include <sys/cdefs.h>
|
|
#include <stdbool.h>
|
|
#include <stddef.h>
|
|
#include <stdint.h>
|
|
|
|
__BEGIN_DECLS
|
|
|
|
typedef struct prop_info prop_info;
|
|
|
|
#define PROP_VALUE_MAX 92
|
|
|
|
/*
|
|
* Sets system property `key` to `value`, creating the system property if it doesn't already exist.
|
|
*/
|
|
int __system_property_set(const char* key, const char* value) __INTRODUCED_IN(12);
|
|
|
|
/*
|
|
* Returns a `prop_info` corresponding system property `name`, or nullptr if it doesn't exist.
|
|
* Use __system_property_read_callback to query the current value.
|
|
*
|
|
* Property lookup is expensive, so it can be useful to cache the result of this function.
|
|
*/
|
|
const prop_info* __system_property_find(const char* name);
|
|
|
|
/*
|
|
* Calls `callback` with a consistent trio of name, value, and serial number for property `pi`.
|
|
*/
|
|
void __system_property_read_callback(const prop_info *pi,
|
|
void (*callback)(void* cookie, const char *name, const char *value, uint32_t serial),
|
|
void* cookie) __INTRODUCED_IN_FUTURE;
|
|
|
|
/*
|
|
* Passes a `prop_info` for each system property to the provided
|
|
* callback. Use __system_property_read_callback() to read the value.
|
|
*
|
|
* This method is for inspecting and debugging the property system, and not generally useful.
|
|
*/
|
|
int __system_property_foreach(void (*propfn)(const prop_info* pi, void* cookie), void* cookie)
|
|
__INTRODUCED_IN(19);
|
|
|
|
/*
|
|
* 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;
|
|
|
|
/* Deprecated. In Android O and above, there's no limit on property name length. */
|
|
#define PROP_NAME_MAX 32
|
|
/* Deprecated. Use __system_property_read_callback instead. */
|
|
int __system_property_read(const prop_info *pi, char *name, char *value);
|
|
/* Deprecated. Use __system_property_read_callback instead. */
|
|
int __system_property_get(const char *name, char *value);
|
|
/* Deprecated. Use __system_property_foreach instead. Aborts in Android O and above. */
|
|
const prop_info *__system_property_find_nth(unsigned n) __REMOVED_IN(26);
|
|
|
|
__END_DECLS
|
|
|
|
#endif
|