diff options
| -rw-r--r-- | src/util/ForeignFifoBuffer.hxx | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/src/util/ForeignFifoBuffer.hxx b/src/util/ForeignFifoBuffer.hxx index da0058ad3..bcc2b9d67 100644 --- a/src/util/ForeignFifoBuffer.hxx +++ b/src/util/ForeignFifoBuffer.hxx @@ -223,6 +223,15 @@ public: size_type MoveFrom(ForeignFifoBuffer<T> &src) noexcept { auto r = src.Read(); auto w = Write(); + + if (w.size < r.size && head > 0) { + /* if the source contains more data than we + can append at the tail, try to make more + room by shifting the head to 0 */ + Shift(); + w = Write(); + } + size_t n = std::min(r.size, w.size); std::move(r.data, r.data + n, w.data); |