MSP432E411Y-BGAEVM: std::mutex

Jim Whitehouse

Part Number: MSP432E411Y-BGAEVM

Hi,
I'm porting a C++ application from a Linux platform, to run under TI RTOS. If possible, I would like to use a std::mutex.
Adding:-

#include <mutex>

compiles OK, but as soon as I try and declare a

std::mutex myMutex;

it just says namespace std does not include mutex.

I have tracked down the header file in

C:\ti\ccs1040\ccs\tools\compiler\ti-cgt-arm_20.2.5.LTS\include\libcxx

and see that the first section, including namespace std, is commented out, but the later bits include _mutes_base and this seems to define std via the macro _LIBCPP_BEGIN_NAMESPACE_STD.

Ideally, to minimise change, I would like to use

std::lock_guard<std::mutex> lk(myMutex);

but getting just the mutex working would be a good start.

Any tips?

Thanks

Jim

over 2 years ago

0 Jim Whitehouse over 2 years ago

Expert 1431 points

Anyone rising to the challenge?

+1 Chester Gillon over 2 years ago in reply to Jim Whitehouse

Guru 92251 points

Found std::mutex which notes that the TI compiler doesn't support C++11 concurrency features which require integration with the underlying OS or RTOS.

And [FAQ] Compiler: Which C++ standard is supported? contains:

Generally speaking, most of the standard is supported, except for features which require coordination with an operating system.

So, can understand why trying to use std::mutex results in an error, but not sure what modifications would be required to add support for std::mutex.

Jim Whitehouse said:
I'm porting a C++ application from a Linux platform, to run under TI RTOS.

Perhaps a wrapper for std::mutex could be created which uses the underlying TI-RTOS mutex support.

Arm-based microcontrollers

Arm-based microcontrollers forum

MSP432E411Y-BGAEVM: std::mutex