vkQueueWaitIdle

vkQueueWaitIdle is a function in the Vulkan API that is used to synchronize the host and a Vulkan queue. When this function is called, it blocks the host until all previously submitted commands to the specified queue have completed execution. This is useful for ensuring that all operations on a queue have finished before proceeding with further actions, such as destroying resources or submitting new commands.

The function takes a single parameter, which is the handle to the Vulkan queue to wait on. The queue handle is obtained when the queue is created using the vkGetDeviceQueue function. The function returns a VkResult, which indicates the success or failure of the operation. A return value of VK_SUCCESS indicates that the function completed successfully, while other values indicate specific error conditions.

vkQueueWaitIdle is a blocking call, meaning that it will halt the execution of the host thread until the condition is met. This can be useful in scenarios where the host needs to ensure that all previous commands have completed before proceeding, but it should be used judiciously to avoid unnecessary stalls in the application's execution.

In summary, vkQueueWaitIdle is a synchronization function in Vulkan that blocks the host until all previously submitted commands to a specified queue have completed. It is useful for ensuring the completion of operations on a queue before proceeding with further actions.