io/FileDescriptor: pass std::span to Full{Read,Write}()

test/ReadFrames.cxx

@@ -28,7 +28,7 @@ ReadFrames(FileDescriptor fd, void *_buffer, std::size_t size,
 	const size_t modulo = nbytes % frame_size;
 	if (modulo > 0) {
 		size_t rest = frame_size - modulo;
-		fd.FullRead(buffer + nbytes, rest);
+		fd.FullRead({(std::byte *)buffer + nbytes, rest});
 		nbytes += rest;
 	}
 

test/run_convert.cxx

@@ -116,7 +116,7 @@ RunConvert(PcmConvert &convert, size_t in_frame_size,
 		buffer.Consume(src.size());
 
 		auto output = convert.Convert(src);
-		out_fd.FullWrite(output.data(), output.size());
+		out_fd.FullWrite(output);
 	}
 
 	while (true) {
@@ -124,7 +124,7 @@ RunConvert(PcmConvert &convert, size_t in_frame_size,
 		if (output.data() == nullptr)
 			break;
 
-		out_fd.FullWrite(output.data(), output.size());
+		out_fd.FullWrite(output);
 	}
 }
 

test/run_filter.cxx

@@ -87,14 +87,14 @@ try {
 			break;
 
 		auto dest = filter->FilterPCM(std::span{buffer}.first(nbytes));
-		output_fd.FullWrite(dest.data(), dest.size());
+		output_fd.FullWrite(dest);
 	}
 
 	while (true) {
 		auto dest = filter->Flush();
 		if (dest.data() == nullptr)
 			break;
-		output_fd.FullWrite(dest.data(), dest.size());
+		output_fd.FullWrite(dest);
 	}
 
 	/* cleanup and exit */

test/run_input.cxx

@@ -170,13 +170,13 @@ dump_input_stream(InputStream &is, FileDescriptor out,
 			}
 		}
 
-		char buffer[MAX_CHUNK_SIZE];
+		std::byte buffer[MAX_CHUNK_SIZE];
 		assert(chunk_size <= sizeof(buffer));
 		size_t num_read = is.Read(lock, buffer, chunk_size);
 		if (num_read == 0)
 			break;
 
-		out.FullWrite(buffer, num_read);
+		out.FullWrite({buffer, num_read});
 	}
 
 	is.Check();