[svn-r12784]

Fixes for bugs 676, 228

676: both h5repack and h5diff use H5Dread. In the case of a "big"
dataset, use read/write by hyperslabs the same way h5dump uses. An
arbitrary value of 1GB was defined for "big", i.e, if the dataset is
greater than 1GB, then read/write by hyperslabs

228: use the file type in read/write by default. A new switch -n was
introduced if the user wants to use a native type, which was the
previous use by default.

Added a new test for h5repack that repacks a 1GB dataset

Tested: heping (serial, parallel), sol, copper

1 files changed, 17 insertions, 0 deletions

diff --git a/tools/lib/h5tools.h b/tools/lib/h5tools.h
index 357154b..70d8734 100644
--- a/tools/lib/h5tools.h
+++ b/tools/lib/h5tools.h
@@ -30,6 +30,23 @@
 #define END_OF_DATA		0x0002
 
 /*
+ * The output functions need a temporary buffer to hold a piece of the
+ * dataset while it's being printed. This constant sets the limit on the
+ * size of that temporary buffer in bytes. For efficiency's sake, choose the
+ * largest value suitable for your machine (for testing use a small value).
+ */
+#if 1
+#define H5TOOLS_BUFSIZE         (1024 * 1024)
+#else
+#define H5TOOLS_BUFSIZE         (1024)
+#endif 
+
+/*
+ * Maximum size used in a call to malloc
+ */
+#define H5TOOLS_MALLOCSIZE      ((size_t)1024 * 1024 * 1024)
+
+/*
  * Information about how to format output.
  */
 typedef struct h5tool_format_t {