added minimum for decoder buffer

also : introduced macro BOUNDED()
2021-10-26 08:21:31 -07:00
parent 02be2a830f
commit 518f06b281
5 changed files with 8 additions and 6 deletions
@@ -110,10 +110,11 @@ typedef struct {
 #  define ZSTD_DECODER_INTERNAL_BUFFER  (1 << 16)
 #endif

+#define ZSTD_LBMIN 64
 #define ZSTD_LBMAX (128 << 10)

-/* extra buffer, compensates amount of dst required to store litBuffer */
-#define ZSTD_LITBUFFEREXTRASIZE  MIN(ZSTD_DECODER_INTERNAL_BUFFER, ZSTD_LBMAX)
+/* extra buffer, compensates when dst is not large enough to store litBuffer */
+#define ZSTD_LITBUFFEREXTRASIZE  BOUNDED(ZSTD_LBMIN, ZSTD_DECODER_INTERNAL_BUFFER, ZSTD_LBMAX)

 typedef enum {
    ZSTD_not_in_dst = 0,  /* Stored entirely within litExtraBuffer */