taskshare.h File Reference

Data which can be shared between tasks in a thread-safe manner. More...

#include "baseshare.h"
#include "FreeRTOS.h"

Include dependency graph for taskshare.h:

Go to the source code of this file.

Classes
class	Share< DataType >
	Class for data to be shared in a thread-safe manner between tasks. More...

Detailed Description

Data which can be shared between tasks in a thread-safe manner.

This file contains a template class for data which is to be shared between tasks. The data must be protected against damage due to context switches, so it is protected by a mutex or by causing transfers to take place inside critical sections of code which are not interrupted. This version is known to work on STM32's and ESP32's only because the insertion and extraction operators << and >> need specific functions to determine if they're running in ISR's or not.

Date

2012-Oct-29 JRR Original file

2014-Aug-26 JRR Changed file names, class name to TaskShare, removed unused version that uses semaphores, renamed put() and get()

2014-Oct-18 JRR Added linked list of all shares for tracking and debugging

2020-Oct-10 JRR Made compatible with Arduino, class name to Share

2020-Nov-14 JRR Added new-ESP32 compatible SHARE_..._CRITICAL(x); added << and >> operators

2020-Nov-18 JRR Critical sections not reliable; changed to a queue

2021-Sep-17 JRR Changed some put params from references to copies

2021-Sep-19 JRR Added overloads for get() which return values

Copyright

This file is copyright 2014 – 2021 by JR Ridgely and released under the Lesser GNU Public License, version 2. It intended for educational use only, but its use is not limited thereto.