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99 lines
3.6 KiB
99 lines
3.6 KiB
/**
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* Copyright (c) 2019, The Linux Foundation. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met:
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials provided
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* with the distribution.
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* * Neither the name of The Linux Foundation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
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* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
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* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
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* IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef ADSP_PLS_H
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#define ADSP_PLS_H
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#include <stdint.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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/**
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* internal header
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*/
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/**
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* adsp process local storage is local storage for the fastrpc hlos
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* process context.
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* When used from within a fastrpc started thread this will attach
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* desturctors to the lifetime of the hlos process that is making the
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* rpc calls. Users can use this to store context for the lifetime of
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* the calling process on the hlos.
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*/
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/**
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* adds a new key to the local storage, overriding
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* any previous value at the key. Overriding the key
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* does not cause the destructor to run.
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*
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* @param type, type part of the key to be used for lookup,
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* these should be static addresses, like the address of a function.
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* @param key, the key to be used for lookup
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* @param size, the size of the data
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* @param ctor, constructor that takes a context and memory of size
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* @param ctx, constructor context passed as the first argument to ctor
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* @param dtor, destructor to run at pls shutdown
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* @param ppo, output data
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* @retval, 0 for success
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*/
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int adsp_pls_add(uintptr_t type, uintptr_t key, int size, int (*ctor)(void* ctx, void* data), void* ctx, void (*dtor)(void*), void** ppo);
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/**
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* Like add, but will only add 1 item, and return the same item on the
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* next add. If two threads try to call this function at teh same time
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* they will both receive the same value as a result, but the constructors
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* may be called twice.
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* item if its already there, otherwise tries to add.
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* ctor may be called twice
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* callers should avoid calling pls_add which will override the singleton
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*/
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int adsp_pls_add_lookup(uintptr_t type, uintptr_t key, int size, int (*ctor)(void* ctx, void* data), void* ctx, void (*dtor)(void*), void** ppo);
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/**
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* finds the last data pointer added for key to the local storage
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*
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* @param key, the key to be used for lookup
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* @param ppo, output data
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* @retval, 0 for success
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*/
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int adsp_pls_lookup(uintptr_t type, uintptr_t key, void** ppo);
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/**
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* force init/deinit
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*/
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int gpls_init(void);
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void gpls_deinit(void);
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#ifdef __cplusplus
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}
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#endif
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#endif //ADSP_PLS_H
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