[svn-r578] Changes since 19980805

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

./MANIFEST
	Replaced Compression.html with Filters.html

./doc/html/Filters.html
./src/H5Ocomp.c
./src/H5P.c
./src/H5Ppublic.h
./src/H5Z.c
./src/H5Zprivate.h
	Added two extra arguments to H5Pget_filter() in order to
	retrieve the filter name.  The name is the name registered for
	the filter with H5Zregister(), but if the dataset creation
	property originally came from an existing file then the name
	is that which is stored in the file.

./tools/h5ls.c
	The `-v' option now prints the names of the filters.

./src/H5B.c
./src/H5Fistore.c
./src/H5O.c
./src/H5Oefl.c
./src/H5Oprivate.h
./src/H5P.c
	Plugged a memory leak.

./src/H5MMprivate.h
	H5MM_malloc(0) and H5MM_calloc(0) actually allocate a single
	byte in order to be sure that we get a valid pointer.

./src/H5S.c
./src/H5Sselect.c
	Fixed pointer->integer conversions in error return values in
	three places.

1 files changed, 16 insertions, 28 deletions

diff --git a/src/H5Z.c b/src/H5Z.c
index 9919023..e415790 100644
--- a/src/H5Z.c
+++ b/src/H5Z.c
@@ -24,30 +24,10 @@ static intn interface_initialize_g = FALSE;
 static herr_t H5Z_init_interface (void);
 static void H5Z_term_interface (void);
 
-/*
- * The filter table maps filter identification numbers to structs that
- * contain a pointers to the filter function and timing statistics.
- */
-typedef struct H5Z_class_t {
-    H5Z_filter_t id;		/*filter ID number			*/
-    char	*comment;	/*comment for debugging			*/
-    H5Z_func_t	func;		/*the filter function			*/
-
-#ifdef H5Z_DEBUG
-    struct {
-	hsize_t	total;		/*total number of bytes processed	*/
-	hsize_t	errors;		/*bytes of total attributable to errors	*/
-	H5_timer_t timer;	/*execution time including errors	*/
-    } stats[2];			/*0=output, 1=input			*/
-#endif
-} H5Z_class_t;
-
 static size_t		H5Z_table_alloc_g = 0;
 static size_t		H5Z_table_used_g = 0;
 static H5Z_class_t	*H5Z_table_g = NULL;
 
-static H5Z_class_t *H5Z_find(H5Z_filter_t id);
-
 /* Predefined filters */
 static size_t H5Z_filter_deflate(uintn flags, size_t cd_nelmts,
 				 const uintn cd_values[], size_t nbytes,
@@ -123,7 +103,7 @@ H5Z_term_interface (void)
 	    }
 
 	    /* Truncate the comment to fit in the field */
-	    strncpy(comment, H5Z_table_g[i].comment, sizeof comment);
+	    strncpy(comment, H5Z_table_g[i].name, sizeof comment);
 	    comment[sizeof(comment)-1] = '\0';
 
 	    /*
@@ -151,7 +131,7 @@ H5Z_term_interface (void)
 
     /* Free the table */
     for (i=0; i<H5Z_table_used_g; i++) {
-	H5MM_xfree(H5Z_table_g[i].comment);
+	H5MM_xfree(H5Z_table_g[i].name);
     }
     H5Z_table_g = H5MM_xfree(H5Z_table_g);
     H5Z_table_used_g = H5Z_table_alloc_g = 0;
@@ -252,12 +232,12 @@ H5Z_register (H5Z_filter_t id, const char *comment, H5Z_func_t func)
 	i = H5Z_table_used_g++;
 	HDmemset(H5Z_table_g+i, 0, sizeof(H5Z_class_t));
 	H5Z_table_g[i].id = id;
-	H5Z_table_g[i].comment = H5MM_xstrdup(comment);
+	H5Z_table_g[i].name = H5MM_xstrdup(comment);
 	H5Z_table_g[i].func = func;
     } else {
 	/* Replace old contents */
-	H5MM_xfree(H5Z_table_g[i].comment);
-	H5Z_table_g[i].comment = H5MM_xstrdup(comment);
+	H5MM_xfree(H5Z_table_g[i].name);
+	H5Z_table_g[i].name = H5MM_xstrdup(comment);
 	H5Z_table_g[i].func = func;
     }
 
@@ -354,7 +334,7 @@ H5Z_append(H5O_pline_t *pline, H5Z_filter_t filter, uintn flags,
  *
  *-------------------------------------------------------------------------
  */
-static H5Z_class_t *
+H5Z_class_t *
 H5Z_find(H5Z_filter_t id)
 {
     size_t	i;
@@ -544,7 +524,10 @@ H5Z_filter_deflate (uintn flags, size_t cd_nelmts, const uintn cd_values[],
 	z_stream	z_strm;
 	size_t		nalloc = *buf_size;
 
-	outbuf = H5MM_malloc(nalloc);
+	if (NULL==(outbuf = H5MM_malloc(nalloc))) {
+	    HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, 0,
+			"memory allocation failed for deflate uncompression");
+	}
 	HDmemset(&z_strm, 0, sizeof(z_strm));
 	z_strm.next_in = *buf;
 	z_strm.avail_in = nbytes;
@@ -562,7 +545,12 @@ H5Z_filter_deflate (uintn flags, size_t cd_nelmts, const uintn cd_values[],
 	    }
 	    if (Z_OK==status && 0==z_strm.avail_out) {
 		nalloc *= 2;
-		outbuf = H5MM_realloc(outbuf, nalloc);
+		if (NULL==(outbuf = H5MM_realloc(outbuf, nalloc))) {
+		    inflateEnd(&z_strm);
+		    HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, 0,
+				"memory allocation failed for deflate "
+				"uncompression");
+		}
 		z_strm.next_out = (char*)outbuf + z_strm.total_out;
 		z_strm.avail_out = nalloc - z_strm.total_out;
 	    }