Makes a single attempt to acquire the specified reader-writer lock in the read mode.
#include <nks/synch.h> NXBool_t NXTryRdLock ( NXRwLock_t *lock);
(IN) Points to the reader-writer lock to acquire in the read mode.
Because this is a conditional acquisition, the hierarchy constraint with respect to locks is relaxed for this acquisition. If the lock being acquired is not available, NXTryRdLock returns FALSE.