XrDuration(3) Manual Page

The difference between two timepoints is a duration, and thus the difference between two XrTime values is an XrDuration value. XrDuration is a base value type that represents duration as a signed 64-bit integer, representing the signed number of nanoseconds between two timepoints.

Functions that refer to durations use XrDuration as opposed to XrTime. When an XrDuration is used as a timeout parameter, the constants XR_NO_DURATION and XR_INFINITE_DURATION have special meaning. A timeout with a duration that refers to the past (that is, a negative duration) must be interpreted as a timeout of XR_NO_DURATION.

The interpretation of zero and negative durations in non-timeout uses is specified along with each such use.

XR_INFINITE_DURATION, XR_NO_DURATION, XrFrameState, XrHapticAmplitudeEnvelopeVibrationFB, XrHapticVibration, XrSpaceComponentStatusSetInfoFB, XrSpaceQueryInfoFB, XrSwapchainImageWaitInfo, XrTime, xrSetMarkerTrackingTimeoutVARJO

For more information, see the OpenXR Specification

This page is extracted from the OpenXR Specification. Fixes and changes should be made to the Specification, not directly.

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