[svn-r17623] Description:

	Bring "compress group's fractal heap" feature from branch back to
trunk.

Tested on:
        FreeBSD/32 6.3 (duty) in debug mode
        FreeBSD/64 6.3 (liberty) w/C++ & FORTRAN, in debug mode
        Linux/32 2.6 (jam) w/PGI compilers, w/default API=1.8.x,
                w/C++ & FORTRAN, w/threadsafe, in debug mode
        Linux/64-amd64 2.6 (smirom) w/Intel compilers, w/default API=1.6.x,
                w/C++ & FORTRAN, in production mode
        Solaris/32 2.10 (linew) w/deprecated symbols disabled, w/C++ & FORTRAN,
                w/szip filter, in production mode
        Linux/64-ia64 2.6 (cobalt) w/Intel compilers, w/C++ & FORTRAN,
                in production mode
        Linux/64-ia64 2.4 (tg-login3) w/parallel, w/FORTRAN, in debug mode
        Linux/64-amd64 2.6 (abe) w/parallel, w/FORTRAN, in production mode
        Mac OS X/32 10.6.1 (amazon) in debug mode
        Mac OS X/32 10.6.1 (amazon) w/C++ & FORTRAN, w/threadsafe,
                in production mode

1 files changed, 22 insertions, 0 deletions

diff --git a/src/H5HFman.c b/src/H5HFman.c
index 5bdc769..3fb0cfb 100644
--- a/src/H5HFman.c
+++ b/src/H5HFman.c
@@ -44,6 +44,19 @@
 /* Local Macros */
 /****************/
 
+/* Macro to check if we can apply all filters in the pipeline.  Use whenever
+ * performing a modification operation */
+ #define H5HF_MAN_WRITE_CHECK_PLINE(HDR)                                       \
+{                                                                              \
+    if(!((HDR)->checked_filters)) {                                            \
+        if((HDR)->pline.nused)                                                 \
+            if(H5Z_can_apply_direct(&((HDR)->pline)) < 0)                      \
+                HGOTO_ERROR(H5E_ARGS, H5E_CANTINIT, FAIL, "I/O filters can't operate on this heap") \
+                                                                               \
+        (HDR)->checked_filters = TRUE;                                         \
+    } /* end if */                                                             \
+}
+
 
 /******************/
 /* Local Typedefs */
@@ -116,6 +129,9 @@ HDfprintf(stderr, "%s: obj_size = %Zu\n", FUNC, obj_size);
     HDassert(obj);
     HDassert(id);
 
+    /* Check pipeline */
+    H5HF_MAN_WRITE_CHECK_PLINE(hdr)
+
     /* Look for free space */
     if((node_found = H5HF_space_find(hdr, dxpl_id, (hsize_t)obj_size, &sec_node)) < 0)
         HGOTO_ERROR(H5E_HEAP, H5E_CANTALLOC, FAIL, "can't locate free space in fractal heap")
@@ -272,6 +288,9 @@ H5HF_man_op_real(H5HF_hdr_t *hdr, hid_t dxpl_id, const uint8_t *id,
 
     /* Set the access mode for the direct block */
     if(op_flags & H5HF_OP_MODIFY) {
+        /* Check pipeline */
+        H5HF_MAN_WRITE_CHECK_PLINE(hdr)
+
         dblock_access = H5AC_WRITE;
         dblock_cache_flags = H5AC__DIRTIED_FLAG;
     } /* end if */
@@ -533,6 +552,9 @@ H5HF_man_remove(H5HF_hdr_t *hdr, hid_t dxpl_id, const uint8_t *id)
     HDassert(hdr);
     HDassert(id);
 
+    /* Check pipeline */
+    H5HF_MAN_WRITE_CHECK_PLINE(hdr)
+
     /* Skip over the flag byte */
     id++;