nng_duration5
Relative time in milliseconds
Usage
#include <nng/nng.h> typedef int32_t nng_duration; #define NNG_DURATION_INFINITE (-1) #define NNG_DURATION_DEFAULT (-2) #define NNG_DURATION_ZERO (0)
Overview
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.