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Sleep manager: optimise counter 

No need for a critical section - can just use atomic ops.
pull/10151/head
Kevin Bracey 2019-03-18 18:07:46 +02:00
parent 6b84b14ab6
commit b81cefb48c
1 changed files with 4 additions and 13 deletions
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17
platform/mbed_sleep_manager.c
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@ -25,7 +25,6 @@
#include "hal/us_ticker_api.h"
#include "hal/lp_ticker_api.h"
#include <limits.h>
#include <stdio.h>
#if DEVICE_SLEEP
@ -173,29 +172,21 @@ void sleep_tracker_unlock(const char *const filename, int line)
void sleep_manager_lock_deep_sleep_internal(void)
{
core_util_critical_section_enter();
if (deep_sleep_lock == USHRT_MAX) {
core_util_critical_section_exit();
MBED_ERROR1(MBED_MAKE_ERROR(MBED_MODULE_HAL, MBED_ERROR_CODE_OVERFLOW), "DeepSleepLock overflow (> USHRT_MAX)", deep_sleep_lock);
if (core_util_atomic_incr_u16(&deep_sleep_lock, 1) == 0) {
MBED_ERROR1(MBED_MAKE_ERROR(MBED_MODULE_HAL, MBED_ERROR_CODE_OVERFLOW), "DeepSleepLock overflow (> 0xFFFF)", deep_sleep_lock);
}
core_util_atomic_incr_u16(&deep_sleep_lock, 1);
core_util_critical_section_exit();
}
void sleep_manager_unlock_deep_sleep_internal(void)
{
core_util_critical_section_enter();
if (deep_sleep_lock == 0) {
core_util_critical_section_exit();
if (core_util_atomic_decr_u16(&deep_sleep_lock, 1) == 0xFFFF) {
MBED_ERROR1(MBED_MAKE_ERROR(MBED_MODULE_HAL, MBED_ERROR_CODE_UNDERFLOW), "DeepSleepLock underflow (< 0)", deep_sleep_lock);
}
core_util_atomic_decr_u16(&deep_sleep_lock, 1);
core_util_critical_section_exit();
}
bool sleep_manager_can_deep_sleep(void)
{
return deep_sleep_lock == 0 ? true : false;
return core_util_atomic_load_u16(&deep_sleep_lock) == 0;
}
bool sleep_manager_can_deep_sleep_test_check()