Re: Protected and Unprotected operations on Chain_control

2015-08-12 Thread Gedare Bloom
thread dispatch occurs due to an interrupt. if interrupts are disabled, then no dispatch. On Wed, Aug 12, 2015 at 2:23 PM, Saurabh Gadia wrote: > Hi, > > #define _ISR_Disable( _level ) \ > do { \ > _CPU_ISR_Disable( _level ); \ > _Assert( _Debug_Is_owner_of_giant() ); \ > RTEMS_COMP

Re: Protected and Unprotected operations on Chain_control

2015-08-12 Thread Saurabh Gadia
Hi, #define _ISR_Disable( _level ) \ do { \ _CPU_ISR_Disable( _level ); \ _Assert( _Debug_Is_owner_of_giant() ); \ RTEMS_COMPILER_MEMORY_BARRIER(); \ } while (0) the above macro has description: @brief Disables interrupts on this processor. * * This macro disables all interrup

Re: Protected and Unprotected operations on Chain_control

2015-08-12 Thread Gedare Bloom
On Wed, Aug 12, 2015 at 11:48 AM, Saurabh Gadia wrote: > Hi, > > For operations related to manipulation of Chain_Node we have two modes for > that: protected and unprotected. In protected access to chain we guard the > operation by disabling the interrupts while in unprotected we don't guard > it.