Channel trace is limited by memory

2 files changed, 13 insertions, 0 deletions

diff --git a/src/core/lib/slice/slice.cc b/src/core/lib/slice/slice.cc
index 419474129b..e842d84f11 100644
--- a/src/core/lib/slice/slice.cc
+++ b/src/core/lib/slice/slice.cc
@@ -88,6 +88,14 @@ static const grpc_slice_refcount_vtable noop_refcount_vtable = {
 static grpc_slice_refcount noop_refcount = {&noop_refcount_vtable,
                                             &noop_refcount};
 
+size_t grpc_slice_memory_usage(grpc_slice s) {
+  if (s.refcount == nullptr || s.refcount == &noop_refcount) {
+    return 0;
+  } else {
+    return s.data.refcounted.length;
+  }
+}
+
 grpc_slice grpc_slice_from_static_buffer(const void* s, size_t len) {
   grpc_slice slice;
   slice.refcount = &noop_refcount;
diff --git a/src/core/lib/slice/slice_internal.h b/src/core/lib/slice/slice_internal.h
index 5d3d26b67b..5b05951522 100644
--- a/src/core/lib/slice/slice_internal.h
+++ b/src/core/lib/slice/slice_internal.h
@@ -46,4 +46,9 @@ grpc_slice grpc_slice_maybe_static_intern(grpc_slice slice,
 uint32_t grpc_static_slice_hash(grpc_slice s);
 int grpc_static_slice_eq(grpc_slice a, grpc_slice b);
 
+// Returns the memory used by this slice, not counting the slice structure
+// itself. This means that inlined and slices from static strings will return
+// 0. All other slices will return the size of the allocated chars.
+size_t grpc_slice_memory_usage(grpc_slice s);
+
 #endif /* GRPC_CORE_LIB_SLICE_SLICE_INTERNAL_H */