ANeuralNetworksEvent_getSyncFenceFd

nnapi_sys

Function ANeuralNetworksEvent_getSyncFenceFd 

Source 
pub unsafe extern "C" fn ANeuralNetworksEvent_getSyncFenceFd(
    event: *const ANeuralNetworksEvent,
    sync_fence_fd: *mut c_int,
) -> c_int
Expand description

Get sync_fence file descriptor from the event.

If the ANeuralNetworksEvent is not backed by a sync fence, the sync_fence_fd will be set to -1, and ANEURALNETWORKS_BAD_DATA will be returned.

See {@link ANeuralNetworksEvent_createFromSyncFenceFd} and {@link ANeuralNetworksExecution_startComputeWithDependencies} to see how to create an event backed by a sync fence.

The user takes ownership of the returned fd, and must close the returned file descriptor when it is no longer needed.

@param event An event that is backed by a sync fence. @param sync_fence_fd The sync_fence file descriptor. The file descriptor will be set to -1 if there is an error.

@return ANEURALNETWORKS_NO_ERROR if successful.

Available since API level 30.