Multi threading and Global variables.

[kathyayini]

I have 10 global variables (the purpose of making it global is that all the variables are used in different functions). I am using multithreading and i do not want interaction between the threads. is there is a way to make threads to treat all global variables as local. what i mean to say is when i execute 2 thread at the same time, the global variables get manipulated by both the threads.

 

[RanganathRamachandra]

if you use HPUX cc/aCC you can declare global variables as thread-specific with the '__thread' C keyword. i dont know if that is supported in other platforms. but there is the posxi standard thread API pthread_setspecific to make data thread-spefific. you can read the man page and get more info.

 

[areza123]

Is this only C code - because if you have C++ compiler I would highly recommend the use of functionoids in such a scenario.

Do let me know if you need more info on how to use functionoid's with multithreading...provided ofcourse you are using a C++ & not a C compiler

Cheers