Handle
VkDescriptorPool
Opaque handle to a descriptor pool object
A descriptor pool maintains a pool of descriptors, from which descriptor sets are allocated. Descriptor pools are externally synchronized, meaning that the application must not allocate and/or free descriptor sets from the same pool in multiple threads simultaneously.
Descriptor pools are represented by VkDescriptorPool handles:
VK_DEFINE_NON_DISPATCHABLE_HANDLE(VkDescriptorPool)