251 lines
6.9 KiB
Plaintext
Executable File
251 lines
6.9 KiB
Plaintext
Executable File
/*
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* Copyright (C) 2011 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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/** @file rs_atomic.rsh
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* \brief Atomic routines
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*
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*
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*/
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#ifndef __RS_ATOMIC_RSH__
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#define __RS_ATOMIC_RSH__
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#if (defined(RS_VERSION) && (RS_VERSION >= 14))
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/**
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* Atomic add one to the value at addr.
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* Equal to rsAtomicAdd(addr, 1)
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*
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* @param addr Address of value to increment
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*
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* @return old value
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*/
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extern int32_t __attribute__((overloadable))
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rsAtomicInc(volatile int32_t* addr);
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/**
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* Atomic add one to the value at addr.
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* Equal to rsAtomicAdd(addr, 1)
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*
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* @param addr Address of value to increment
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*
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* @return old value
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*/
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extern uint32_t __attribute__((overloadable))
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rsAtomicInc(volatile uint32_t* addr);
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/**
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* Atomic subtract one from the value at addr. Equal to rsAtomicSub(addr, 1)
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*
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* @param addr Address of value to decrement
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*
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* @return old value
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*/
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extern int32_t __attribute__((overloadable))
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rsAtomicDec(volatile int32_t* addr);
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/**
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* Atomic subtract one from the value at addr. Equal to rsAtomicSub(addr, 1)
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*
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* @param addr Address of value to decrement
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*
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* @return old value
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*/
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extern uint32_t __attribute__((overloadable))
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rsAtomicDec(volatile uint32_t* addr);
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/**
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* Atomic add a value to the value at addr. addr[0] += value
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*
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* @param addr Address of value to modify
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* @param value Amount to add to the value at addr
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*
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* @return old value
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*/
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extern int32_t __attribute__((overloadable))
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rsAtomicAdd(volatile int32_t* addr, int32_t value);
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/**
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* Atomic add a value to the value at addr. addr[0] += value
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*
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* @param addr Address of value to modify
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* @param value Amount to add to the value at addr
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*
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* @return old value
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*/
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extern uint32_t __attribute__((overloadable))
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rsAtomicAdd(volatile uint32_t* addr, uint32_t value);
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/**
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* Atomic Subtract a value from the value at addr. addr[0] -= value
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*
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* @param addr Address of value to modify
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* @param value Amount to subtract from the value at addr
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*
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* @return old value
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*/
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extern int32_t __attribute__((overloadable))
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rsAtomicSub(volatile int32_t* addr, int32_t value);
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/**
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* Atomic Subtract a value from the value at addr. addr[0] -= value
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*
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* @param addr Address of value to modify
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* @param value Amount to subtract from the value at addr
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*
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* @return old value
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*/
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extern uint32_t __attribute__((overloadable))
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rsAtomicSub(volatile uint32_t* addr, uint32_t value);
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/**
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* Atomic Bitwise and a value from the value at addr. addr[0] &= value
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*
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* @param addr Address of value to modify
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* @param value Amount to and with the value at addr
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*
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* @return old value
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*/
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extern int32_t __attribute__((overloadable))
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rsAtomicAnd(volatile int32_t* addr, int32_t value);
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/**
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* Atomic Bitwise and a value from the value at addr. addr[0] &= value
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*
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* @param addr Address of value to modify
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* @param value Amount to and with the value at addr
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*
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* @return old value
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*/
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extern uint32_t __attribute__((overloadable))
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rsAtomicAnd(volatile uint32_t* addr, uint32_t value);
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/**
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* Atomic Bitwise or a value from the value at addr. addr[0] |= value
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*
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* @param addr Address of value to modify
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* @param value Amount to or with the value at addr
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*
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* @return old value
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*/
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extern int32_t __attribute__((overloadable))
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rsAtomicOr(volatile int32_t* addr, int32_t value);
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/**
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* Atomic Bitwise or a value from the value at addr. addr[0] |= value
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*
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* @param addr Address of value to modify
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* @param value Amount to or with the value at addr
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*
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* @return old value
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*/
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extern uint32_t __attribute__((overloadable))
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rsAtomicOr(volatile uint32_t* addr, uint32_t value);
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/**
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* Atomic Bitwise xor a value from the value at addr. addr[0] ^= value
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*
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* @param addr Address of value to modify
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* @param value Amount to xor with the value at addr
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*
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* @return old value
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*/
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extern uint32_t __attribute__((overloadable))
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rsAtomicXor(volatile uint32_t* addr, uint32_t value);
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/**
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* Atomic Bitwise xor a value from the value at addr. addr[0] ^= value
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*
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* @param addr Address of value to modify
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* @param value Amount to xor with the value at addr
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*
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* @return old value
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*/
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extern int32_t __attribute__((overloadable))
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rsAtomicXor(volatile int32_t* addr, int32_t value);
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/**
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* Atomic Set the value at addr to the min of addr and value
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* addr[0] = rsMin(addr[0], value)
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*
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* @param addr Address of value to modify
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* @param value comparison value
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*
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* @return old value
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*/
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extern uint32_t __attribute__((overloadable))
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rsAtomicMin(volatile uint32_t* addr, uint32_t value);
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/**
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* Atomic Set the value at addr to the min of addr and value
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* addr[0] = rsMin(addr[0], value)
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*
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* @param addr Address of value to modify
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* @param value comparison value
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*
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* @return old value
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*/
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extern int32_t __attribute__((overloadable))
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rsAtomicMin(volatile int32_t* addr, int32_t value);
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/**
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* Atomic Set the value at addr to the max of addr and value
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* addr[0] = rsMax(addr[0], value)
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*
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* @param addr Address of value to modify
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* @param value comparison value
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*
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* @return old value
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*/
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extern uint32_t __attribute__((overloadable))
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rsAtomicMax(volatile uint32_t* addr, uint32_t value);
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/**
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* Atomic Set the value at addr to the max of addr and value
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* addr[0] = rsMin(addr[0], value)
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*
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* @param addr Address of value to modify
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* @param value comparison value
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*
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* @return old value
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*/
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extern int32_t __attribute__((overloadable))
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rsAtomicMax(volatile int32_t* addr, int32_t value);
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/**
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* Compare-and-set operation with a full memory barrier.
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*
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* If the value at addr matches compareValue then newValue is written.
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*
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* @param addr The address to compare and replace if the compare passes.
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* @param compareValue The value to test addr[0] against.
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* @param newValue The value to write if the test passes.
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*
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* @return old value
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*/
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extern int32_t __attribute__((overloadable))
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rsAtomicCas(volatile int32_t* addr, int32_t compareValue, int32_t newValue);
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/**
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* Compare-and-set operation with a full memory barrier.
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*
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* If the value at addr matches compareValue then newValue is written.
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*
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* @param addr The address to compare and replace if the compare passes.
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* @param compareValue The value to test addr[0] against.
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* @param newValue The value to write if the test passes.
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*
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* @return old value
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*/
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extern uint32_t __attribute__((overloadable))
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rsAtomicCas(volatile uint32_t* addr, uint32_t compareValue, uint32_t newValue);
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#endif //defined(RS_VERSION) && (RS_VERSION >= 14)
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#endif
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