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Diffstat (limited to '')
| -rw-r--r-- | src/util/CircularBuffer.hxx | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/src/util/CircularBuffer.hxx b/src/util/CircularBuffer.hxx index 67b60e198..0321b91f6 100644 --- a/src/util/CircularBuffer.hxx +++ b/src/util/CircularBuffer.hxx @@ -99,6 +99,15 @@ public: } /** + * Returns the number of elements stored in this buffer. + */ + constexpr size_type GetSize() const { + return head <= tail + ? tail - head + : capacity - head + tail; + } + + /** * Prepares writing. Returns a buffer range which may be written. * When you are finished, call Append(). */ |