The problem of multi-threaded access to global variables is too difficult

珈蓝皮皮

I have a Tqueue queue,
One thread keeps adding data, and the other thread keeps reading and deleting. This way, address errors often occur from time to time, how to solve it. I have used critical sections, but I am not good at critical sections.
  It seems that the critical section is only valid for multi-threaded access to the same piece of code. What should I do if global variables are used everywhere?

sycforwow

Try syncing

阿迪雅

Thread lock

goylee

The critical section is used to deal with this problem

珈蓝皮皮

1 Critical section: access to a common piece of code through the serialization of multiple threads
My code is not common, each thread accesses different places, shouldn't it be a critical section?

snail97

You should be useless!
Critical section is a way to achieve synchronization!

wctchen

Try TThreadList

bbmm1217

TThreadList seriously affects performance! When the processing speed is required to be very fast, TThreadList is not competent!

wufred

Try with semaphore

night__wolf

Use circular queues. The queues are implemented by static arrays. Don't use dynamic memory allocation. This speed will increase a lot and there will be no memory allocation errors.