ywkaras commented on code in PR #10694:
URL: https://github.com/apache/trafficserver/pull/10694#discussion_r1380400155
##########
include/api/Metrics.h:
##########
@@ -289,10 +280,126 @@ class Metrics
mutable std::mutex _mutex;
LookupTable _lookups;
- MetricBlobs _blobs;
+ BlobStorage _blobs;
uint16_t _cur_blob = 0;
uint16_t _cur_off = 0;
+public:
+ // These are sort of factory classes, using the Metrics singleton for all
storage etc.
+ class Gauge
+ {
+ public:
+ using self_type = Gauge;
+ using SpanType = Metrics::SpanType;
+
+ class AtomicType : public Metrics::AtomicType
+ {
+ };
+
+ static Metrics::IdType
+ create(const std::string_view name)
+ {
+ auto &instance = Metrics::instance();
+
+ return instance._create(name);
+ }
+
+ static AtomicType *
+ createPtr(const std::string_view name)
+ {
+ auto &instance = Metrics::instance();
+
+ return reinterpret_cast<AtomicType
*>(instance.lookup(instance._create(name)));
Review Comment:
This looks like the overload of `lookup()` that returns `IdType/uint32_t`.
How can that work, to cast it to a64-bit pointer?
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