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Disabling Interrupts to prevent preemption of pthread.

Chris Foes
Prodigy 10 points

Hi,

I am developing some software that runs on the Cortex 8A processor on the OMAP 3530.  I am developing an application that is utilizing several pthreads. My question: is there a way to disable and then re-enable interrupts in software?  I need to do this to prevent preemption during a short block of code for one of my threads.  Forgive my ignorance I am a newbie to this. 

Chris