[svn-r322] Changes since 19980313

----------------------

./configure.in
./configure
./test/iopipe.c
	Added check for system(3)

./config/freebsd2.2.1
./config/linux
	Added -DH5D_DEBUG to the debug flags.

./src/H5D.c
./src/H5Dprivate.h
./src/H5P.c
./src/H5Ppublic.h
./src/H5Sprivate.h
./src/H5Ssimp.c
./html/Datasets.html
	Finally implemented strip mining in the I/O pipeline, placing
	a user-defined upper bound on the amount of temporary memory
	used by the pipeline.  The default is 1MB type conversion and
	background buffers allocated/freed on demand.  However, the
	size can be changed and/or application-allocated buffers
	supplied with H5Pset_buffers() called on the data transfer
	property list passed to H5Dread() and H5Dwrite().

	Minor optimizations to H5Dread() and H5Dwrite().  More coming
	later...

./test/dsets.c
	Added calls to H5Pset_buffer() to test application-defined
	temporary buffers in the I/O pipeline.

./test/Makefile.in
	Removed `iopipe' from the list of confidence tests.  Saying
	`make timings' in the test directory runs timing tests.  I did
	this because (1) they don't really test anything new, and (2)
	they can take a long time to run.

1 files changed, 13 insertions, 1 deletions

diff --git a/src/H5Dprivate.h b/src/H5Dprivate.h
index fc6eeb4..f678ef7 100644
--- a/src/H5Dprivate.h
+++ b/src/H5Dprivate.h
@@ -26,6 +26,15 @@
 #include <H5Sprivate.h>         /*for the H5S_t type                         */
 #include <H5Oprivate.h>         /*object Headers                             */
 
+/*
+ * Feature: Define H5D_DEBUG on the compiler command line if you want to
+ *	    debug dataset I/O. NDEBUG must not be defined in order for this
+ *	    to have any effect.
+ */
+#ifdef NDEBUG
+#  undef H5D_DEBUG
+#endif
+
 #define H5D_RESERVED_ATOMS  0
 
 /* Set the minimum object header size to create objects with */
@@ -41,8 +50,11 @@ typedef struct H5D_create_t {
 
 /* Dataset transfer property list */
 typedef struct H5D_xfer_t {
-    int _placeholder;                   /*unused--delete this later          */
+    size_t		buf_size;	/*max temp buffer size		     */
+    void		*tconv;		/*type conversion buffer or null     */
+    void		*bkg;		/*background buffer or null	     */
 } H5D_xfer_t;
+
 typedef struct H5D_t H5D_t;
 extern const H5D_create_t H5D_create_dflt;
 extern const H5D_xfer_t H5D_xfer_dflt;