read(_:)
Reads the current contents of the buffer resource synchronously on the CPU.
Declaration
final func read<R, E>(_ body: (RawSpan) throws(E) -> R) throws(E) -> R where E : Error, R : ~CopyableParameters
- body:
A closure that receives a read-only span over the buffer’s bytes.
Discussion
You pass a closure that receives a read-only span representing the contents of the buffer resource. This span is valid only for the duration of the closure.