ZMQ_ATOMIC_COUNTER_N(3)           0MQ Manual           ZMQ_ATOMIC_COUNTER_N(3)

NAME
       zmq_atomic_counter_new - create a new atomic counter

SYNOPSIS
       void *zmq_atomic_counter_new (void);

DESCRIPTION
       The zmq_atomic_counter_new function creates a new atomic counter. You
       can use this in multithreaded applications to do, for example,
       reference counting of shared objects. The atomic counter is at least 32
       bits large. This function uses platform specific atomic operations.

RETURN VALUE
       The zmq_atomic_counter_new() function returns the new atomic counter if
       successful. Otherwise it returns NULL.

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_set(3) zmq_atomic_counter_inc(3)
       zmq_atomic_counter_dec(3) zmq_atomic_counter_value(3)
       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.

0MQ 4.3.5                         10/23/2023           ZMQ_ATOMIC_COUNTER_N(3)