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-rw-r--r--src/util/ForeignFifoBuffer.hxx16
1 files changed, 16 insertions, 0 deletions
diff --git a/src/util/ForeignFifoBuffer.hxx b/src/util/ForeignFifoBuffer.hxx
index cd6fb6101..c52846727 100644
--- a/src/util/ForeignFifoBuffer.hxx
+++ b/src/util/ForeignFifoBuffer.hxx
@@ -204,6 +204,22 @@ public:
return n;
}
+ /**
+ * Move as much data as possible from the specified buffer.
+ *
+ * @return the number of items moved
+ */
+ size_type MoveFrom(ForeignFifoBuffer<T> &src) {
+ auto r = src.Read();
+ auto w = Write();
+ size_t n = std::min(r.size, w.size);
+
+ std::move(r.data, r.data + n, w.data);
+ Append(n);
+ src.Consume(n);
+ return n;
+ }
+
protected:
void Shift() {
if (head == 0)