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Diffstat (limited to 'src/core/ext/transport/chttp2/transport/hpack_encoder.h')
-rw-r--r--src/core/ext/transport/chttp2/transport/hpack_encoder.h7
1 files changed, 4 insertions, 3 deletions
diff --git a/src/core/ext/transport/chttp2/transport/hpack_encoder.h b/src/core/ext/transport/chttp2/transport/hpack_encoder.h
index b370932131..e31a7399d7 100644
--- a/src/core/ext/transport/chttp2/transport/hpack_encoder.h
+++ b/src/core/ext/transport/chttp2/transport/hpack_encoder.h
@@ -28,8 +28,9 @@
#include "src/core/lib/transport/metadata_batch.h"
#include "src/core/lib/transport/transport.h"
-#define GRPC_CHTTP2_HPACKC_NUM_FILTERS 256
-#define GRPC_CHTTP2_HPACKC_NUM_VALUES 256
+// This should be <= 8. We use 6 to save space.
+#define GRPC_CHTTP2_HPACKC_NUM_VALUES_BITS 6
+#define GRPC_CHTTP2_HPACKC_NUM_VALUES (1 << GRPC_CHTTP2_HPACKC_NUM_VALUES_BITS)
/* initial table size, per spec */
#define GRPC_CHTTP2_HPACKC_INITIAL_TABLE_SIZE 4096
/* maximum table size we'll actually use */
@@ -58,7 +59,7 @@ typedef struct {
a new literal should be added to the compression table or not.
They track a single integer that counts how often a particular value has
been seen. When that count reaches max (255), all values are halved. */
- uint8_t filter_elems[GRPC_CHTTP2_HPACKC_NUM_FILTERS];
+ uint8_t filter_elems[GRPC_CHTTP2_HPACKC_NUM_VALUES];
/* entry tables for keys & elems: these tables track values that have been
seen and *may* be in the decompressor table */