atomic_sub_and_test
Name
atomic_sub_and_test -- subtract value from variable and test result
Synopsis
int atomic_sub_and_test (int i, atomic_t * v);
Arguments
i integer value to subtract
v pointer of type atomic_t
Description
Atomically subtracts i from v and returns
true if the result is zero, or false for all
other cases. Note that the guaranteed
useful range of an atomic_t is only 24 bits.