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3e1acdcbbf
ardupilot/libraries/AP_HAL
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Murilo Belluzzo 3e1acdcbbf AP_HAL: Use atomic instead volatile on RingBuffer head/tail 
Volatile will provide protection to sequence re-ordering and guarantee
the variable is fetched from memory, but it won't provide the memory
barrier needed to ensure that no re-ordering (by either the compiler or
the CPU) will happen among other threads of execution
accessing the same variables.

For more info about this effect can be found on articles about
std::memory_order.
2016-07-08 16:12:53 -03:00
..
examples AP_HAL: fix signed and unsigned comparison warning 2016-05-04 08:58:37 -03:00
utility AP_HAL: Use atomic instead volatile on RingBuffer head/tail 2016-07-08 16:12:53 -03:00
AnalogIn.h AP_HAL: replace header guard with pragma once 2016-02-18 14:52:34 -02:00
AP_HAL_Boards.h AP_HAL: added hal.util->set_imu_target_temp() API 2016-07-01 15:29:52 +10:00
AP_HAL_Macros.h AP_HAL: replace header guard with pragma once 2016-02-18 14:52:34 -02:00
AP_HAL_Main.h AP_HAL: remove support for main without argc 2016-05-23 21:49:45 -03:00
AP_HAL_Namespace.h AP_HAL: Remove trailing spaces from AP_HAL_Namespace.h 2016-06-22 16:03:30 -03:00
AP_HAL.h AP_HAL: Add support for an Optflow driver 2015-12-18 17:56:03 +11:00
Device.h Global: rename bus type enum entries 2016-06-27 17:51:41 -03:00
GPIO.h AP_HAL: GPIO: remove unused functions 2016-06-21 12:16:32 -03:00
HAL.cpp AP_HAL: add run() method 2015-10-21 09:16:07 +11:00
HAL.h AP_HAL: added uartF 2016-04-20 09:39:48 +10:00
I2CDevice.h Global: rename bus type enum entries 2016-06-27 17:51:41 -03:00
I2CDriver.h AP_HAL: Fix typos 2016-05-13 19:20:06 -03:00
OpticalFlow.h AP_HAL: follow coding style 2015-12-18 17:56:03 +11:00
RCInput.h AP_HAL: fixed typo 2016-07-01 15:35:07 +10:00
RCOutput.h AP_HAL: defer calls to safety_state switch to queue an async attempt. 2016-05-27 21:34:40 +10:00
Scheduler.h AP_HAL: replace header guard with pragma once 2016-02-18 14:52:34 -02:00
Semaphores.h AP_HAL: replace header guard with pragma once 2016-02-18 14:52:34 -02:00
SPIDevice.h Global: rename bus type enum entries 2016-06-27 17:51:41 -03:00
SPIDriver.h AP_HAL: add interface for SPIDevice devices 2016-02-16 19:49:09 -02:00
Storage.h AP_HAL: replace header guard with pragma once 2016-02-18 14:52:34 -02:00
system.h Global: Rename printf format attribute 2015-12-01 07:22:12 +11:00
UARTDriver.cpp AP_HAL: remove unused in_progmem flag to print_vprintf 2015-12-27 15:58:12 -02:00
UARTDriver.h AP_HAL: fixed typo 2016-07-01 15:35:07 +10:00
Util.cpp AP_HAL: add support for get realtime on Darwin systems 2016-07-07 11:35:17 -03:00
Util.h AP_HAL: fixed typo 2016-07-01 15:35:07 +10:00