MR::TbbThreadMutex Class Reference

#include <MRTbbThreadMutex.h>

Classes
class	LockGuard
	RAII-style lock guard for the mutex; releases it on destruction. More...

Public Member Functions
MRMESH_API	TbbThreadMutex (std::thread::id id=std::this_thread::get_id())
MRMESH_API std::optional< LockGuard >	tryLock ()

Detailed Description

helper class used to ensure that the specific thread is not re-used by TBB use it if you have nested TBB operations (e.g. parallel_for inside another parallel_for)

TbbThreadMutex reportThreadMutex;
tbb::parallel_for( range, [&] ( auto&& range )
{
    const auto reportThreadLock = reportThreadMutex.tryLock();
    for ( auto i = range.begin(); i != range.end(); ++i )
    {
        // if you have a nested `parallel_for` call here, you might come back to the same main loop with another range
        // since TBB can re-use 'stale' threads
        tbb::parallel_for( ... );
        if ( reportThreadLock )
            report( ... );
    }
} );

Constructor & Destructor Documentation

TbbThreadMutex()

MRMESH_API MR::TbbThreadMutex::TbbThreadMutex ( std::thread::id id = std::this_thread::get_id() )

explicit

construct class

Parameters

id	- id of thread allowed to lock the mutex

Member Function Documentation

tryLock()

MRMESH_API std::optional< LockGuard > MR::TbbThreadMutex::tryLock

(

)

try to lock the mutex returns a lock guard if the current thread id is equal to the mutex's one and the mutex is not locked yet

---

The documentation for this class was generated from the following file:

• MRTbbThreadMutex.h