vkGetQueueCheckpointDataNV

If the device encounters an error during execution, the implementation will return a VK_ERROR_DEVICE_LOST error to the application at a certain point during host execution. When this happens, the application can call vkGetQueueCheckpointDataNV to retrieve information on the most recent diagnostic checkpoints that were executed by the device.

void vkGetQueueCheckpointDataNV(
    VkQueue queue,
    uint32_t* pCheckpointDataCount,
    VkCheckpointDataNV* pCheckpointData);

• queue is the VkQueue object the caller would like to retrieve checkpoint data for
• pCheckpointDataCount is a pointer to an integer related to the number of checkpoint markers available or queried, as described below.
• pCheckpointData is either NULL or a pointer to an array of VkCheckpointDataNV structures.

If pCheckpointData is NULL, then the number of checkpoint markers available is returned in pCheckpointDataCount.

Otherwise, pCheckpointDataCount must point to a variable set by the application to the number of elements in the pCheckpointData array, and on return the variable is overwritten with the number of structures actually written to pCheckpointData.

If pCheckpointDataCount is less than the number of checkpoint markers available, at most pCheckpointDataCount structures will be written.