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Add bool atomics

pull/9600/head
Kevin Bracey 2019-02-04 13:12:55 +02:00
parent f8e3f5dc2c
commit a71984093a
2 changed files with 33 additions and 0 deletions
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3
platform/mbed_critical.c
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@ -100,6 +100,9 @@ void core_util_critical_section_exit(void)
}
}
/* Inline bool implementations in the header use uint8_t versions to manipulate the bool */
MBED_STATIC_ASSERT(sizeof(bool) == sizeof(uint8_t), "Surely bool is a byte");
#if MBED_EXCLUSIVE_ACCESS
/* Supress __ldrex and __strex deprecated warnings - "#3731-D: intrinsic is deprecated" */

30
platform/mbed_critical.h
View File

@ -211,6 +211,12 @@ bool core_util_atomic_cas_u32(volatile uint32_t *ptr, uint32_t *expectedCurrentV
/** \copydoc core_util_atomic_cas_u8 */
bool core_util_atomic_cas_u64(volatile uint64_t *ptr, uint64_t *expectedCurrentValue, uint64_t desiredValue);
/** \copydoc core_util_atomic_cas_u8 */
MBED_FORCEINLINE bool core_util_atomic_cas_bool(volatile bool *ptr, bool *expectedCurrentValue, bool desiredValue)
{
return (bool)core_util_atomic_cas_u8((volatile uint8_t *)ptr, (uint8_t *)expectedCurrentValue, desiredValue);
}
/** \copydoc core_util_atomic_cas_u8 */
bool core_util_atomic_cas_ptr(void *volatile *ptr, void **expectedCurrentValue, void *desiredValue);
@ -257,6 +263,18 @@ MBED_FORCEINLINE uint32_t core_util_atomic_load_u32(const volatile uint32_t *val
*/
uint64_t core_util_atomic_load_u64(const volatile uint64_t *valuePtr);
/**
* Atomic load.
* @param valuePtr Target memory location.
* @return The loaded value.
*/
MBED_FORCEINLINE bool core_util_atomic_load_bool(const volatile bool *valuePtr)
{
bool value = *valuePtr;
MBED_BARRIER();
return value;
}
/**
* Atomic load.
* @param valuePtr Target memory location.
@ -312,6 +330,18 @@ MBED_FORCEINLINE void core_util_atomic_store_u32(volatile uint32_t *valuePtr, ui
*/
void core_util_atomic_store_u64(volatile uint64_t *valuePtr, uint64_t desiredValue);
/**
* Atomic store.
* @param valuePtr Target memory location.
* @param desiredValue The value to store.
*/
MBED_FORCEINLINE void core_util_atomic_store_bool(volatile bool *valuePtr, bool desiredValue)
{
MBED_BARRIER();
*valuePtr = desiredValue;
MBED_BARRIER();
}
/**
* Atomic store.
* @param valuePtr Target memory location.