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- zmq_atomic_counter_dec(3)
- =========================
- NAME
- ----
- zmq_atomic_counter_dec - decrement an atomic counter
- SYNOPSIS
- --------
- *int zmq_atomic_counter_dec (void *counter);*
- DESCRIPTION
- -----------
- The _zmq_atomic_counter_dec_ function decrements an atomic counter in
- a threadsafe fashion. This function uses platform specific atomic
- operations.
- RETURN VALUE
- ------------
- The _zmq_atomic_counter_dec()_ function returns 1 if the counter is
- greater than zero after decrementing, or zero if the counter reached
- zero.
- 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
- --------
- linkzmq:zmq_atomic_counter_new[3]
- linkzmq:zmq_atomic_counter_set[3]
- linkzmq:zmq_atomic_counter_inc[3]
- linkzmq:zmq_atomic_counter_value[3]
- linkzmq:zmq_atomic_counter_destroy[3]
- AUTHORS
- -------
- This page was written by the 0MQ community. To make a change please
- read the 0MQ Contribution Policy at <http://www.zeromq.org/docs:contributing>.
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