dded a bulk push_back to Deque and switched readControlPackets/readDataPackets to use it

Author: lathoub

src/AppleMIDI.hpp

@@ -724,8 +724,7 @@ void AppleMIDISession<UdpClass, Settings, Platform>::writeRtpMidiBuffer(Particip
     }
 
     // write out the MIDI Section
-    for (size_t i = 0; i < bufferLen; i++)
-        packet[offset++] = outMidiBuffer[i];
+    offset += outMidiBuffer.copy_out(packet + offset, bufferLen);
 
     // *No* journal section (Not supported)
     dataPort.write(packet, offset);

src/utility/Deque.h

@@ -28,6 +28,7 @@ class Deque {
     void push_front(const T &);
     void push_back(const T &);
     size_t push_back(const T *, size_t);
+    size_t copy_out(T *, size_t) const;
     void pop_front();
     void pop_back();
 
@@ -159,6 +160,32 @@ size_t Deque<T, Size>::push_back(const T *values, size_t count)
     return toWrite;
 }
 
+template<typename T, size_t Size>
+size_t Deque<T, Size>::copy_out(T *dest, size_t count) const
+{
+    if (dest == nullptr || count == 0)
+        return 0;
+
+    const size_t available = size();
+    if (available == 0)
+        return 0;
+
+    const size_t toCopy = (count < available) ? count : available;
+    const size_t start = (size_t)_tail;
+
+    size_t first = toCopy;
+    if (start + first > Size)
+        first = Size - start;
+
+    memcpy(dest, &_data[start], first * sizeof(T));
+
+    const size_t remaining = toCopy - first;
+    if (remaining > 0)
+        memcpy(dest + first, &_data[0], remaining * sizeof(T));
+
+    return toCopy;
+}
+
 template<typename T, size_t Size>
 void Deque<T, Size>::pop_front() {
     if (empty()) // if empty, do nothing.