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-rw-r--r--src/H5Opkg.h6
1 files changed, 6 insertions, 0 deletions
diff --git a/src/H5Opkg.h b/src/H5Opkg.h
index e778f90..ef49535 100644
--- a/src/H5Opkg.h
+++ b/src/H5Opkg.h
@@ -217,6 +217,12 @@
#define H5O_SHARE_IS_SHARABLE 0x01
#define H5O_SHARE_IN_OHDR 0x02
+/* Set the object header size to speculatively read in */
+/* (needs to be more than the object header prefix size to work at all and
+ * should be larger than the largest object type's default object header
+ * size to save the extra I/O operations) */
+#define H5O_SPEC_READ_SIZE 512
+
/* The "message class" type */
struct H5O_msg_class_t {