zmq_init(3) =========== NAME ---- zmq_init - initialise 0MQ context SYNOPSIS -------- *void *zmq_init (int 'io_threads');* DESCRIPTION ----------- The _zmq_init()_ function initialises a 0MQ 'context'. The 'io_threads' argument specifies the size of the 0MQ thread pool to handle I/O operations. If your application is using only the 'inproc' transport for messaging you may set this to zero, otherwise set it to at least one. RETURN VALUE ------------ The _zmq_init()_ function shall return an opaque handle to the initialised 'context' if successful. Otherwise it shall return NULL and set 'errno' to one of the values defined below. ERRORS ------ *EINVAL*:: An invalid number of 'io_threads' was requested. SEE ALSO -------- linkzmq:zmq[7] linkzmq:zmq_term[3] AUTHORS ------- The 0MQ documentation was written by Martin Sustrik and Martin Lucina .