ZMQ_ATOMIC_COUNTER_I(3) 0MQ Manual ZMQ_ATOMIC_COUNTER_I(3)
NAME
zmq_atomic_counter_inc - increment an atomic counter
SYNOPSIS
int zmq_atomic_counter_inc (void *counter);
DESCRIPTION
The zmq_atomic_counter_inc function increments an atomic counter in a
threadsafe fashion. This function uses platform specific atomic
operations.
RETURN VALUE
The zmq_atomic_counter_inc() function returns the old value of the
counter, before incrementing.
EXAMPLE
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;
SEE ALSO
zmq_atomic_counter_new(3) zmq_atomic_counter_set(3)
zmq_atomic_counter_dec(3) zmq_atomic_counter_value(3)
zmq_atomic_counter_destroy(3)
AUTHORS
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0MQ 4.3.4 01/18/2023 ZMQ_ATOMIC_COUNTER_I(3)
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