aboutsummaryrefslogtreecommitdiff
path: root/src/libutil/serialise.hh
diff options
context:
space:
mode:
Diffstat (limited to 'src/libutil/serialise.hh')
-rw-r--r--src/libutil/serialise.hh11
1 files changed, 11 insertions, 0 deletions
diff --git a/src/libutil/serialise.hh b/src/libutil/serialise.hh
index 3650857aa..5309828bc 100644
--- a/src/libutil/serialise.hh
+++ b/src/libutil/serialise.hh
@@ -231,6 +231,17 @@ struct SizedSource : Source
}
};
+/* A sink that that just counts the number of bytes given to it */
+struct LengthSink : Sink
+{
+ uint64_t length = 0;
+
+ virtual void operator () (const unsigned char * _, size_t len)
+ {
+ length += len;
+ }
+};
+
/* Convert a function into a sink. */
struct LambdaSink : Sink
{