Miles Sound System SDK 7.2a

AIL_lock

The function AIL_lock suspends timer service to all MSS drivers and application callback functions until a matching call to AIL_unlock is made.

void AIL_lock();

Discussion

Calls to AIL_lock and AIL_unlock should bracket any sections of application code which must not be interrupted by background MSS timer interrupts. Examples would include non-reentrant application functions which may be called from both the foreground application and an MSS timer, XMIDI, or digital sound callback function.

AIL_lock increments a counter which is decremented by each corresponding call to AIL_unlock. When an AIL_unlock call decrements the counter to zero, MSS timer service is resumed.

Under DOS, BIOS system timer service continues while AIL_lock is in effect. The CPU interrupt state is not affected by either AIL_lock or AIL_unlock.

Group: Timer Services
Related Functions: AIL_lock, AIL_unlock
Related Basic Types: void