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Diffstat (limited to 'FreeRTOS-Plus/Demo/FreeRTOS_IoT_Libraries/mqtt/atomic.h')
| -rw-r--r-- | FreeRTOS-Plus/Demo/FreeRTOS_IoT_Libraries/mqtt/atomic.h | 547 |
1 files changed, 0 insertions, 547 deletions
diff --git a/FreeRTOS-Plus/Demo/FreeRTOS_IoT_Libraries/mqtt/atomic.h b/FreeRTOS-Plus/Demo/FreeRTOS_IoT_Libraries/mqtt/atomic.h deleted file mode 100644 index d44593d8f..000000000 --- a/FreeRTOS-Plus/Demo/FreeRTOS_IoT_Libraries/mqtt/atomic.h +++ /dev/null @@ -1,547 +0,0 @@ -/*
- * FreeRTOS Kernel V10.2.0
- * Copyright (C) 2019 Amazon.com, Inc. or its affiliates. All Rights Reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy of
- * this software and associated documentation files (the "Software"), to deal in
- * the Software without restriction, including without limitation the rights to
- * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
- * the Software, and to permit persons to whom the Software is furnished to do so,
- * subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in all
- * copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
- * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
- * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
- * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
- * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- *
- * http://www.FreeRTOS.org
- * http://aws.amazon.com/freertos
- *
- * 1 tab == 4 spaces!
- */
-
-/**
- * @file atomic.h
- * @brief FreeRTOS atomic operation support.
- *
- * Two implementations of atomic are given in this header file:
- * 1. Disabling interrupt globally.
- * 2. ISA native atomic support.
- * The former is available to all ports (compiler-architecture combination),
- * while the latter is only available to ports compiling with GCC (version at
- * least 4.7.0), which also have ISA atomic support.
- *
- * User can select which implementation to use by:
- * setting/clearing configUSE_ATOMIC_INSTRUCTION in FreeRTOSConfig.h.
- * Define AND set configUSE_ATOMIC_INSTRUCTION to 1 for ISA native atomic support.
- * Undefine OR clear configUSE_ATOMIC_INSTRUCTION for disabling global interrupt
- * implementation.
- *
- * @see GCC Built-in Functions for Memory Model Aware Atomic Operations
- * https://gcc.gnu.org/onlinedocs/gcc/_005f_005fatomic-Builtins.html
- */
-
-#ifndef ATOMIC_H
-#define ATOMIC_H
-
-#ifndef INC_FREERTOS_H
- #error "include FreeRTOS.h must appear in source files before include atomic.h"
-#endif
-
-/* Standard includes. */
-#include <stdint.h>
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-#if defined ( configUSE_GCC_BUILTIN_ATOMICS ) && ( configUSE_GCC_BUILTIN_ATOMICS == 1 )
-
- /* Needed for __atomic_compare_exchange() weak=false. */
- #include <stdbool.h>
-
- /* This branch is for GCC compiler and GCC compiler only. */
- #ifndef portFORCE_INLINE
- #define portFORCE_INLINE inline __attribute__((always_inline))
- #endif
-
-#else
-
- /* Port specific definitions -- entering/exiting critical section.
- * Refer template -- ./lib/FreeRTOS/portable/Compiler/Arch/portmacro.h
- *
- * Every call to ATOMIC_EXIT_CRITICAL() must be closely paired with
- * ATOMIC_ENTER_CRITICAL().
- */
- #if defined( portSET_INTERRUPT_MASK_FROM_ISR )
-
- /* Nested interrupt scheme is supported in this port. */
- #define ATOMIC_ENTER_CRITICAL() \
- UBaseType_t uxCriticalSectionType = portSET_INTERRUPT_MASK_FROM_ISR()
-
- #define ATOMIC_EXIT_CRITICAL() \
- portCLEAR_INTERRUPT_MASK_FROM_ISR( uxCriticalSectionType )
-
- #else
-
- /* Nested interrupt scheme is NOT supported in this port. */
- #define ATOMIC_ENTER_CRITICAL() portENTER_CRITICAL()
- #define ATOMIC_EXIT_CRITICAL() portEXIT_CRITICAL()
-
- #endif /* portSET_INTERRUPT_MASK_FROM_ISR() */
-
- /* Port specific definition -- "always inline".
- * Inline is compiler specific, and may not always get inlined depending on your optimization level.
- * Also, inline is considerred as performance optimization for atomic.
- * Thus, if portFORCE_INLINE is not provided by portmacro.h, instead of resulting error,
- * simply define it.
- */
- #ifndef portFORCE_INLINE
- #define portFORCE_INLINE
- #endif
-
-#endif /* configUSE_GCC_BUILTIN_ATOMICS */
-
-#define ATOMIC_COMPARE_AND_SWAP_SUCCESS 0x1U /**< Compare and swap succeeded, swapped. */
-#define ATOMIC_COMPARE_AND_SWAP_FAILURE 0x0U /**< Compare and swap failed, did not swap. */
-
-/*----------------------------- Swap && CAS ------------------------------*/
-
-/**
- * Atomic compare-and-swap
- *
- * @brief Performs an atomic compare-and-swap operation on the specified values.
- *
- * @param[in, out] pDestination Pointer to memory location from where value is
- * to be loaded and checked.
- * @param[in] ulExchange If condition meets, write this value to memory.
- * @param[in] ulComparand Swap condition.
- *
- * @return Unsigned integer of value 1 or 0. 1 for swapped, 0 for not swapped.
- *
- * @note This function only swaps *pDestination with ulExchange, if previous
- * *pDestination value equals ulComparand.
- */
-static portFORCE_INLINE uint32_t Atomic_CompareAndSwap_u32(
- uint32_t volatile * pDestination,
- uint32_t ulExchange,
- uint32_t ulComparand )
-{
-
- uint32_t ulReturnValue = ATOMIC_COMPARE_AND_SWAP_FAILURE;
-
-#if defined ( configUSE_GCC_BUILTIN_ATOMICS ) && ( configUSE_GCC_BUILTIN_ATOMICS == 1 )
-
- if ( __atomic_compare_exchange( pDestination,
- &ulComparand,
- &ulExchange,
- false,
- __ATOMIC_SEQ_CST,
- __ATOMIC_SEQ_CST ) )
- {
- ulReturnValue = ATOMIC_COMPARE_AND_SWAP_SUCCESS;
- }
-
-#else
-
- ATOMIC_ENTER_CRITICAL();
-
- if ( *pDestination == ulComparand )
- {
- *pDestination = ulExchange;
- ulReturnValue = ATOMIC_COMPARE_AND_SWAP_SUCCESS;
- }
-
- ATOMIC_EXIT_CRITICAL();
-
-#endif
-
- return ulReturnValue;
-
-}
-
-/**
- * Atomic swap (pointers)
- *
- * @brief Atomically sets the address pointed to by *ppDestination to the value
- * of *pExchange.
- *
- * @param[in, out] ppDestination Pointer to memory location from where a pointer
- * value is to be loaded and written back to.
- * @param[in] pExchange Pointer value to be written to *ppDestination.
- *
- * @return The initial value of *ppDestination.
- */
-static portFORCE_INLINE void * Atomic_SwapPointers_p32(
- void * volatile * ppDestination,
- void * pExchange )
-{
- void * pReturnValue;
-
-#if defined ( configUSE_GCC_BUILTIN_ATOMICS ) && ( configUSE_GCC_BUILTIN_ATOMICS == 1 )
-
- __atomic_exchange( ppDestination, &pExchange, &pReturnValue, __ATOMIC_SEQ_CST );
-
-#else
-
- ATOMIC_ENTER_CRITICAL();
-
- pReturnValue = *ppDestination;
-
- *ppDestination = pExchange;
-
- ATOMIC_EXIT_CRITICAL();
-
-#endif
-
- return pReturnValue;
-}
-
-/**
- * Atomic compare-and-swap (pointers)
- *
- * @brief Performs an atomic compare-and-swap operation on the specified pointer
- * values.
- *
- * @param[in, out] ppDestination Pointer to memory location from where a pointer
- * value is to be loaded and checked.
- * @param[in] pExchange If condition meets, write this value to memory.
- * @param[in] pComparand Swap condition.
- *
- * @return Unsigned integer of value 1 or 0. 1 for swapped, 0 for not swapped.
- *
- * @note This function only swaps *ppDestination with pExchange, if previous
- * *ppDestination value equals pComparand.
- */
-static portFORCE_INLINE uint32_t Atomic_CompareAndSwapPointers_p32(
- void * volatile * ppDestination,
- void * pExchange, void * pComparand )
-{
- uint32_t ulReturnValue = ATOMIC_COMPARE_AND_SWAP_FAILURE;
-
-#if defined ( configUSE_GCC_BUILTIN_ATOMICS ) && ( configUSE_GCC_BUILTIN_ATOMICS == 1 )
- if ( __atomic_compare_exchange( ppDestination,
- &pComparand,
- &pExchange,
- false,
- __ATOMIC_SEQ_CST,
- __ATOMIC_SEQ_CST ) )
- {
- ulReturnValue = ATOMIC_COMPARE_AND_SWAP_SUCCESS;
- }
-
-#else
-
- ATOMIC_ENTER_CRITICAL();
-
- if ( *ppDestination == pComparand )
- {
- *ppDestination = pExchange;
- ulReturnValue = ATOMIC_COMPARE_AND_SWAP_SUCCESS;
- }
-
- ATOMIC_EXIT_CRITICAL();
-
-#endif
-
- return ulReturnValue;
-}
-
-
-/*----------------------------- Arithmetic ------------------------------*/
-
-/**
- * Atomic add
- *
- * @brief Atomically adds count to the value of the specified pointer points to.
- *
- * @param[in,out] pAddend Pointer to memory location from where value is to be
- * loaded and written back to.
- * @param[in] ulCount Value to be added to *pAddend.
- *
- * @return previous *pAddend value.
- */
-static portFORCE_INLINE uint32_t Atomic_Add_u32(
- uint32_t volatile * pAddend,
- uint32_t ulCount )
-{
-#if defined ( configUSE_GCC_BUILTIN_ATOMICS ) && ( configUSE_GCC_BUILTIN_ATOMICS == 1 )
-
- return __atomic_fetch_add(pAddend, ulCount, __ATOMIC_SEQ_CST);
-
-#else
-
- uint32_t ulCurrent;
-
- ATOMIC_ENTER_CRITICAL();
-
- ulCurrent = *pAddend;
-
- *pAddend += ulCount;
-
- ATOMIC_EXIT_CRITICAL();
-
- return ulCurrent;
-
-#endif
-}
-
-/**
- * Atomic subtract
- *
- * @brief Atomically subtracts count from the value of the specified pointer
- * pointers to.
- *
- * @param[in,out] pAddend Pointer to memory location from where value is to be
- * loaded and written back to.
- * @param[in] ulCount Value to be subtract from *pAddend.
- *
- * @return previous *pAddend value.
- */
-static portFORCE_INLINE uint32_t Atomic_Subtract_u32(
- uint32_t volatile * pAddend,
- uint32_t ulCount )
-{
-#if defined ( configUSE_GCC_BUILTIN_ATOMICS ) && ( configUSE_GCC_BUILTIN_ATOMICS == 1 )
-
- return __atomic_fetch_sub(pAddend, ulCount, __ATOMIC_SEQ_CST);
-
-#else
-
- uint32_t ulCurrent;
-
- ATOMIC_ENTER_CRITICAL();
-
- ulCurrent = *pAddend;
-
- *pAddend -= ulCount;
-
- ATOMIC_EXIT_CRITICAL();
-
- return ulCurrent;
-
-#endif
-}
-
-/**
- * Atomic increment
- *
- * @brief Atomically increments the value of the specified pointer points to.
- *
- * @param[in,out] pAddend Pointer to memory location from where value is to be
- * loaded and written back to.
- *
- * @return *pAddend value before increment.
- */
-static portFORCE_INLINE uint32_t Atomic_Increment_u32( uint32_t volatile * pAddend )
-{
-#if defined ( configUSE_GCC_BUILTIN_ATOMICS ) && ( configUSE_GCC_BUILTIN_ATOMICS == 1 )
-
- return __atomic_fetch_add(pAddend, 1, __ATOMIC_SEQ_CST);
-
-#else
-
- uint32_t ulCurrent;
-
- ATOMIC_ENTER_CRITICAL();
-
- ulCurrent = *pAddend;
-
- *pAddend += 1;
-
- ATOMIC_EXIT_CRITICAL();
-
- return ulCurrent;
-
-#endif
-}
-
-/**
- * Atomic decrement
- *
- * @brief Atomically decrements the value of the specified pointer points to
- *
- * @param[in,out] pAddend Pointer to memory location from where value is to be
- * loaded and written back to.
- *
- * @return *pAddend value before decrement.
- */
-static portFORCE_INLINE uint32_t Atomic_Decrement_u32( uint32_t volatile * pAddend )
-{
-#if defined ( configUSE_GCC_BUILTIN_ATOMICS ) && ( configUSE_GCC_BUILTIN_ATOMICS == 1 )
-
- return __atomic_fetch_sub(pAddend, 1, __ATOMIC_SEQ_CST);
-
-#else
-
- uint32_t ulCurrent;
-
- ATOMIC_ENTER_CRITICAL();
-
- ulCurrent = *pAddend;
-
- *pAddend -= 1;
-
- ATOMIC_EXIT_CRITICAL();
-
- return ulCurrent;
-
-#endif
-}
-
-/*----------------------------- Bitwise Logical ------------------------------*/
-
-/**
- * Atomic OR
- *
- * @brief Performs an atomic OR operation on the specified values.
- *
- * @param [in, out] pDestination Pointer to memory location from where value is
- * to be loaded and written back to.
- * @param [in] ulValue Value to be ORed with *pDestination.
- *
- * @return The original value of *pDestination.
- */
-static portFORCE_INLINE uint32_t Atomic_OR_u32(
- uint32_t volatile * pDestination,
- uint32_t ulValue )
-{
-#if defined ( configUSE_GCC_BUILTIN_ATOMICS ) && ( configUSE_GCC_BUILTIN_ATOMICS == 1 )
-
- return __atomic_fetch_or(pDestination, ulValue, __ATOMIC_SEQ_CST);
-
-#else
-
- uint32_t ulCurrent;
-
- ATOMIC_ENTER_CRITICAL();
-
- ulCurrent = *pDestination;
-
- *pDestination |= ulValue;
-
- ATOMIC_EXIT_CRITICAL();
-
- return ulCurrent;
-
-#endif
-}
-
-/**
- * Atomic AND
- *
- * @brief Performs an atomic AND operation on the specified values.
- *
- * @param [in, out] pDestination Pointer to memory location from where value is
- * to be loaded and written back to.
- * @param [in] ulValue Value to be ANDed with *pDestination.
- *
- * @return The original value of *pDestination.
- */
-static portFORCE_INLINE uint32_t Atomic_AND_u32(
- uint32_t volatile * pDestination,
- uint32_t ulValue )
-{
-#if defined ( configUSE_GCC_BUILTIN_ATOMICS ) && ( configUSE_GCC_BUILTIN_ATOMICS == 1 )
-
- return __atomic_fetch_and(pDestination, ulValue, __ATOMIC_SEQ_CST);
-
-#else
-
- uint32_t ulCurrent;
-
- ATOMIC_ENTER_CRITICAL();
-
- ulCurrent = *pDestination;
-
- *pDestination &= ulValue;
-
- ATOMIC_EXIT_CRITICAL();
-
- return ulCurrent;
-
-#endif
-}
-
-/**
- * Atomic NAND
- *
- * @brief Performs an atomic NAND operation on the specified values.
- *
- * @param [in, out] pDestination Pointer to memory location from where value is
- * to be loaded and written back to.
- * @param [in] ulValue Value to be NANDed with *pDestination.
- *
- * @return The original value of *pDestination.
- */
-static portFORCE_INLINE uint32_t Atomic_NAND_u32(
- uint32_t volatile * pDestination,
- uint32_t ulValue )
-{
-#if defined ( configUSE_GCC_BUILTIN_ATOMICS ) && ( configUSE_GCC_BUILTIN_ATOMICS == 1 )
-
- return __atomic_fetch_nand(pDestination, ulValue, __ATOMIC_SEQ_CST);
-
-#else
-
- uint32_t ulCurrent;
-
- ATOMIC_ENTER_CRITICAL();
-
- ulCurrent = *pDestination;
-
- *pDestination = ~(ulCurrent & ulValue);
-
- ATOMIC_EXIT_CRITICAL();
-
- return ulCurrent;
-
-#endif
-}
-
-/**
- * Atomic XOR
- *
- * @brief Performs an atomic XOR operation on the specified values.
- *
- * @param [in, out] pDestination Pointer to memory location from where value is
- * to be loaded and written back to.
- * @param [in] ulValue Value to be XORed with *pDestination.
- *
- * @return The original value of *pDestination.
- */
-static portFORCE_INLINE uint32_t Atomic_XOR_u32(
- uint32_t volatile * pDestination,
- uint32_t ulValue )
-{
-#if defined ( configUSE_GCC_BUILTIN_ATOMICS ) && ( configUSE_GCC_BUILTIN_ATOMICS == 1 )
-
- return __atomic_fetch_xor(pDestination, ulValue, __ATOMIC_SEQ_CST);
-
-#else
-
- uint32_t ulCurrent;
-
- ATOMIC_ENTER_CRITICAL();
-
- ulCurrent = *pDestination;
-
- *pDestination ^= ulValue;
-
- ATOMIC_EXIT_CRITICAL();
-
- return ulCurrent;
-
-#endif
-}
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif /* ATOMIC_H */
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