vkGetSemaphoreCounterValue

To query the current counter value of a semaphore created with a VkSemaphoreType of VK_SEMAPHORE_TYPE_TIMELINE from the host, call:

VkResult vkGetSemaphoreCounterValueKHR(
    VkDevice device,
    VkSemaphore semaphore,
    uint64_t* pValue);

device is the logical device that owns the semaphore.
semaphore is the handle of the semaphore to query.
pValue is a pointer to a 64-bit integer value in which the current counter value of the semaphore is returned.

If a queue submission command is pending execution, then the value returned by this command may immediately be out of date.

semaphore must have been created with a VkSemaphoreType of VK_SEMAPHORE_TYPE_TIMELINE

device must be a valid VkDevice handle

semaphore must be a valid VkSemaphore handle

pValue must be a valid pointer to a uint64_t value

semaphore must have been created, allocated, or retrieved from device