[svn-r936] Changes since 19981119

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

./src/H5.c
./src/H5A.c
./src/H5AC.c
./src/H5B.c
./src/H5D.c
./src/H5E.c
./src/H5F.c
./src/H5Farray.c
./src/H5Fcore.c
./src/H5Ffamily.c
./src/H5Fistore.c
./src/H5Flow.c
./src/H5Fmpio.c
./src/H5Fsec2.c
./src/H5Fsplit.c
./src/H5Fstdio.c
./src/H5G.c
./src/H5Gent.c
./src/H5Gnode.c
./src/H5Gstab.c
./src/H5HG.c
./src/H5HL.c
./src/H5I.c
./src/H5Iprivate.h
./src/H5MF.c
./src/H5MM.c
./src/H5O.c
./src/H5Oattr.c
./src/H5Ocomp.c
./src/H5Ocont.c
./src/H5Odtype.c
./src/H5Oefl.c
./src/H5Ofill.c
./src/H5Olayout.c
./src/H5Omtime.c
./src/H5Oname.c
./src/H5Osdspace.c
./src/H5Oshared.c
./src/H5Ostab.c
./src/H5P.c
./src/H5R.c
./src/H5RA.c
./src/H5S.c
./src/H5Sall.c
./src/H5Shyper.c
./src/H5Smpio.c
./src/H5Snone.c
./src/H5Spoint.c
./src/H5Sselect.c
./src/H5T.c
./src/H5TB.c
./src/H5Tbit.c
./src/H5Tconv.c
./src/H5V.c
./src/H5Z.c
./src/H5detect.c
./src/H5private.h
	Most of these changes are because the `interface_initialize_g'
	variable change from hbool_t to int.  It's a one line change.

	Changed the way the library is closed so we have more control
	over the order the interfaces are shut down.  Instead of
	registering an atexit() function for every interface in some
	haphazard order we just register one: H5_term_library() which
	then calls the H5*_term_interface() functions in a
	well-defined order.

	If the library is closed and then reopened repeatedly by
	calling H5close() and H5open() in a loop we only add one copy
	of the library termination functions with atexit().

	Termination is a two-step process in order to help detect
	programming errors that would cause an infinite loop caused by
	the termination of one interface waking up some other
	previously terminated interface.  The first step terminates
	the interface and *marks it as unusable*.  After all
	interfaces are terminated then we mark them all as usable
	again.  The FUNC_ENTER() macro has been modified to return
	failure or to dump core (depending on whether NDEBUG is
	defined) if we try to call an interface while it's shutting
	down.

./src/H5.c
	The H5dont_atexit() function returns failure if it's called
	more than once or if it's called too late.  However, the error
	stack is not automatically printed on failure because the
	library might not be initialized yet

./test/chunk.c
./test/flush1.c
./test/flush2.c
./test/iopipe.c
./test/overhead.c
./test/ragged.c
	Changed the extra cast for Win32 so we do floating point
	division again -- it was just confusion about precedence and
	associativity of casting and the C coercion rules. Removed
	extra carriage returns inserted by broken operating system.

./src/H5Ffamily.c
	Fixed an bug where H5F_fam_write() lowered the EOF marker for
	one of the family members causing H5F_fam_read() to read
	zeros.

./test/h5test.h		[NEW]
./test/h5test.c		[NEW]
./test/Makefile.in
./test/bittests.c
./test/cmpd_dset.c
./test/dsets.c
./test/dtypes.c
./test/extend.c
./test/external.c
	Support library for test files.  This isn't done yet but
	Katie's contractions are ~10 minutes apart so I figured I
	better back this stuff up just in case I'm not here next
	week...

	Eventually all test files will understand HDF5_DRIVER to name
	the low level file driver and parameters so we can easily test
	various drivers.  They will also understand HDF5_PREFIX to
	prepend to the beginning of file names which is necessary for
	testing ROMIO with various drivers. Also, the cleanup function
	will know how to use the file name prefix and will understand
	different file driver naming schemes like file families. I'm
	not sure they'll understand the `gsf:' type prefixes yet.

	Note, the external test is completely commented out because
	I'm in the middle of modifying it.  It will still compile and
	run but it doesn't test anything at the moment.

1 files changed, 12 insertions, 20 deletions

diff --git a/src/H5A.c b/src/H5A.c
index 89ee492..7ccf64d 100644
--- a/src/H5A.c
+++ b/src/H5A.c
@@ -34,12 +34,11 @@ static char		RcsId[] = "$Revision$";
 #define PABLO_MASK	H5A_mask
 
 /* Is the interface initialized? */
-static hbool_t		interface_initialize_g = FALSE;
+static intn		interface_initialize_g = 0;
 #define INTERFACE_INIT	H5A_init_interface
 static herr_t		H5A_init_interface(void);
 
 /* PRIVATE PROTOTYPES */
-static void H5A_term_interface(void);
 static hid_t H5A_create(const H5G_entry_t *ent, const char *name,
 			const H5T_t *type, const H5S_t *space);
 static hid_t H5A_open(H5G_entry_t *ent, unsigned idx);
@@ -63,26 +62,18 @@ DESCRIPTION
 static herr_t
 H5A_init_interface(void)
 {
-    herr_t		    ret_value = SUCCEED;
-
     FUNC_ENTER(H5A_init_interface, FAIL);
 
     /*
-     * Register cleanup function.
+     * Create attribute group.
      */
-    if ((ret_value = H5I_init_group(H5I_ATTR, H5I_ATTRID_HASHSIZE,
-				    H5A_RESERVED_ATOMS,
-				    (herr_t (*)(void *)) H5A_close))<0) {
+    if (H5I_init_group(H5I_ATTR, H5I_ATTRID_HASHSIZE, H5A_RESERVED_ATOMS,
+		       (herr_t (*)(void *)) H5A_close)<0) {
         HRETURN_ERROR(H5E_INTERNAL, H5E_CANTINIT, FAIL,
-		      "unable to initialize attribute group");
-    }
-
-    if (H5_add_exit(H5A_term_interface) < 0) {
-	HRETURN_ERROR(H5E_INTERNAL, H5E_CANTINIT, FAIL,
-		      "unable to install atexit function");
+		      "unable to initialize interface");
     }
     
-    FUNC_LEAVE(ret_value);
+    FUNC_LEAVE(SUCCEED);
 }
 
 
@@ -94,7 +85,6 @@ H5A_init_interface(void)
  USAGE
     void H5A_term_interface()
  RETURNS
-    Non-negative on success/Negative on failure
  DESCRIPTION
     Release any other resources allocated.
  GLOBAL VARIABLES
@@ -103,11 +93,13 @@ H5A_init_interface(void)
  EXAMPLES
  REVISION LOG
 --------------------------------------------------------------------------*/
-static void
-H5A_term_interface(void)
+void
+H5A_term_interface(intn status)
 {
-    H5I_destroy_group(H5I_ATTR);
-    interface_initialize_g = FALSE;
+    if (interface_initialize_g>0) {
+	H5I_destroy_group(H5I_ATTR);
+    }
+    interface_initialize_g = status;
 }