zmq_atomic_counter_value3
Return value of atomic counter
Usage
int zmq_atomic_counter_value (void *counter);
Overview
The zmq_atomic_counter_value function returns the value of an atomic counter created by zmq_atomic_counter_new(). This function uses platform specific atomic operations.
Return value
The zmq_atomic_counter_value() function returns the value of the atomic counter. If counter does not point to an atomic counter created by zmq_atomic_counter_new(), the behaviour is undefined.
Examples
Test code for atomic counters.
void *counter = zmq_atomic_counter_new (); assert (zmq_atomic_counter_value (counter) == 0); assert (zmq_atomic_counter_inc (counter) == 0); assert (zmq_atomic_counter_inc (counter) == 1); assert (zmq_atomic_counter_inc (counter) == 2); assert (zmq_atomic_counter_value (counter) == 3); assert (zmq_atomic_counter_dec (counter) == 1); assert (zmq_atomic_counter_dec (counter) == 1); assert (zmq_atomic_counter_dec (counter) == 0); zmq_atomic_counter_set (counter, 2); assert (zmq_atomic_counter_dec (counter) == 1); assert (zmq_atomic_counter_dec (counter) == 0); zmq_atomic_counter_destroy (&counter); return 0;
Releases
6 releases since Debian 9 (Stretch); the text changed 5 times.