zmq_atomic_counter_new3
Create a new atomic counter
Usage
void *zmq_atomic_counter_new (void);
Overview
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.
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.