This documentation is for version v1.3.0 of NNG, but the latest released version is v1.7.2. see the documentation for v1.7.2 for the most up-to-date information.

SYNOPSIS

#include <nng/nng.h>

typedef int32_t nng_duration;

#define NNG_DURATION_INFINITE (-1)
#define NNG_DURATION_DEFAULT  (-2)
#define NNG_DURATION_ZERO     (0)

DESCRIPTION

An nng_duration is a relative time, measured in milliseconds. This type is most often used in conjunction with timers and timeouts.

A couple of special values have been set aside, and carry special meanings.

NNG_DURATION_DEFAULT

Indicates a context-specific default value should be used.

NNG_DURATION_INFINITE

Effectively an infinite duration; used most often to disable timeouts.

NNG_DURATION_ZERO

Zero length duration; used to perform a single polling operation.