[svn-r12702] Description:

    Add test to fractal heaps to exercise issues with opening the same heap
through two different file handles.

    Fix issues with file handle contexts in metadata cache callbacks for heap
components.

    Fix bug in file close handling where cached information was being
invalidated even when another file handle was open to the file.

Tested on:
    FreeBSD/32 4.11 (sleipnir) w/threadsafe
    Linux/64 2.4 (mir) w/1.6 compat
    Linux/32 2.4 (heping) w/FORTRAN & C++
    Mac OSX/32 10.4.8 (amazon)

2 files changed, 79 insertions, 59 deletions

diff --git a/src/H5F.c b/src/H5F.c
index dfb6d94..46dca23 100644
--- a/src/H5F.c
+++ b/src/H5F.c
@@ -1602,7 +1602,21 @@ H5F_dest(H5F_t *f, hid_t dxpl_id)
     /* Sanity check */
     HDassert(f);
 
-    if (1==f->shared->nrefs) {
+    if(1 == f->shared->nrefs) {
+#if H5AC_DUMP_STATS_ON_CLOSE
+        /* Dump debugging info */
+        H5AC_stats(f);
+#endif /* H5AC_DUMP_STATS_ON_CLOSE */
+
+        /* Flush at this point since the file will be closed */
+        /* (Only try to flush the file if it was opened with write access) */
+        if(f->shared->flags & H5F_ACC_RDWR) {
+            /* Flush and invalidate all caches */
+            if(H5F_flush(f, dxpl_id, H5F_SCOPE_LOCAL, H5F_FLUSH_INVALIDATE | H5F_FLUSH_CLOSING) < 0)
+                /* Push error, but keep going*/
+                HDONE_ERROR(H5E_CACHE, H5E_CANTFLUSH, FAIL, "unable to flush cache")
+        } /* end if */
+
         /* Remove shared file struct from list of open files */
         if(H5F_sfile_remove(f->shared) < 0)
             /* Push error, but keep going*/
@@ -1612,7 +1626,7 @@ H5F_dest(H5F_t *f, hid_t dxpl_id)
          * Do not close the root group since we didn't count it, but free
          * the memory associated with it.
          */
-        if (f->shared->root_grp) {
+        if(f->shared->root_grp) {
             /* Free the ID to name buffer */
             if(H5G_free_grp_name(f->shared->root_grp) < 0)
                 /* Push error, but keep going*/
@@ -1622,16 +1636,16 @@ H5F_dest(H5F_t *f, hid_t dxpl_id)
             if(H5G_free(f->shared->root_grp) < 0)
                 /* Push error, but keep going*/
                 HDONE_ERROR(H5E_FILE, H5E_CANTRELEASE, FAIL, "problems closing file")
-            f->shared->root_grp=NULL;
-        }
-        if (H5AC_dest(f, dxpl_id))
+            f->shared->root_grp = NULL;
+        } /* end if */
+        if(H5AC_dest(f, dxpl_id))
             /* Push error, but keep going*/
             HDONE_ERROR(H5E_FILE, H5E_CANTRELEASE, FAIL, "problems closing file")
-        if (H5FO_dest(f) < 0)
+        if(H5FO_dest(f) < 0)
             /* Push error, but keep going*/
             HDONE_ERROR(H5E_FILE, H5E_CANTRELEASE, FAIL, "problems closing file")
-        f->shared->cwfs = H5MM_xfree (f->shared->cwfs);
-        if (H5G_node_close(f) < 0)
+        f->shared->cwfs = H5MM_xfree(f->shared->cwfs);
+        if(H5G_node_close(f) < 0)
             /* Push error, but keep going*/
             HDONE_ERROR(H5E_FILE, H5E_CANTRELEASE, FAIL, "problems closing file")
 
@@ -1644,14 +1658,14 @@ H5F_dest(H5F_t *f, hid_t dxpl_id)
             HDONE_ERROR(H5E_PLIST, H5E_CANTFREE, FAIL, "can't close property list")
 
         /* Close low-level file */
-        if (H5FD_close(f->shared->lf) < 0)
+        if(H5FD_close(f->shared->lf) < 0)
             /* Push error, but keep going*/
             HDONE_ERROR(H5E_FILE, H5E_CANTINIT, FAIL, "problems closing file")
 
         /* Destroy shared file struct */
         f->shared = H5FL_FREE(H5F_file_t,f->shared);
 
-    } else if (f->shared->nrefs>0) {
+    } else if(f->shared->nrefs > 0) {
         /*
          * There are other references to the shared part of the file.
          * Only decrement the reference count.
@@ -1665,7 +1679,7 @@ H5F_dest(H5F_t *f, hid_t dxpl_id)
     f->mtab.nalloc = 0;
     if(H5FO_top_dest(f) < 0)
         HDONE_ERROR(H5E_FILE, H5E_CANTINIT, FAIL, "problems closing file")
-    H5FL_FREE(H5F_t,f);
+    H5FL_FREE(H5F_t, f);
 
     FUNC_LEAVE_NOAPI(ret_value)
 } /* end H5F_dest() */
@@ -2325,31 +2339,30 @@ H5F_flush(H5F_t *f, hid_t dxpl_id, H5F_scope_t scope, unsigned flags)
      * calling H5F_flush() with the read-only handle, still causes data
      * to be flushed.
      */
-    if (0 == (H5F_ACC_RDWR & f->shared->flags))
+    if(0 == (H5F_ACC_RDWR & f->shared->flags))
 	HGOTO_DONE(SUCCEED)
 
-    /* Flush other stuff depending on scope */
-    if (H5F_SCOPE_GLOBAL == scope) {
-	while (f->mtab.parent)
+    /* Flush other files, depending on scope */
+    if(H5F_SCOPE_GLOBAL == scope) {
+	while(f->mtab.parent)
             f = f->mtab.parent;
 
 	scope = H5F_SCOPE_DOWN;
-    }
-
-    if (H5F_SCOPE_DOWN == scope)
-        for (i = 0; i < f->mtab.nmounts; i++)
-            if (H5F_flush(f->mtab.child[i].file, dxpl_id, scope, flags) < 0)
+    } /* end while */
+    if(H5F_SCOPE_DOWN == scope)
+        for(i = 0; i < f->mtab.nmounts; i++)
+            if(H5F_flush(f->mtab.child[i].file, dxpl_id, scope, flags) < 0)
                 nerrors++;
 
     /* Flush any cached dataset storage raw data */
-    if (H5D_flush(f, dxpl_id, flags) < 0)
+    if(H5D_flush(f, dxpl_id, flags) < 0)
         HGOTO_ERROR(H5E_CACHE, H5E_CANTFLUSH, FAIL, "unable to flush dataset cache")
 
-    /* flush (and invalidate) the entire meta data cache */
+    /* flush (and invalidate, if requested) the entire meta data cache */
     H5AC_flags = 0;
-    if ( (flags & H5F_FLUSH_INVALIDATE) != 0 )
+    if((flags & H5F_FLUSH_INVALIDATE) != 0 )
         H5AC_flags |= H5AC__FLUSH_INVALIDATE_FLAG;
-    if (H5AC_flush(f, dxpl_id, H5AC_flags) < 0)
+    if(H5AC_flush(f, dxpl_id, H5AC_flags) < 0)
         HGOTO_ERROR(H5E_CACHE, H5E_CANTFLUSH, FAIL, "unable to flush meta data cache")
 
     /*
@@ -2357,38 +2370,38 @@ H5F_flush(H5F_t *f, hid_t dxpl_id, H5F_scope_t scope, unsigned flags)
      * the file closes), release the unused portion of the metadata and
      * "small data" blocks back to the free lists in the file.
      */
-    if (flags & H5F_FLUSH_INVALIDATE) {
-        if (f->shared->lf->feature_flags & H5FD_FEAT_AGGREGATE_METADATA) {
+    if(flags & H5F_FLUSH_INVALIDATE) {
+        if(f->shared->lf->feature_flags & H5FD_FEAT_AGGREGATE_METADATA) {
             /* Return the unused portion of the metadata block to a free list */
-            if (f->shared->lf->eoma != 0)
-                if (H5FD_free(f->shared->lf, H5FD_MEM_DEFAULT, dxpl_id,
+            if(f->shared->lf->eoma != 0)
+                if(H5FD_free(f->shared->lf, H5FD_MEM_DEFAULT, dxpl_id,
                         f->shared->lf->eoma, f->shared->lf->cur_meta_block_size) < 0)
                     HGOTO_ERROR(H5E_VFL, H5E_CANTFREE, FAIL, "can't free metadata block")
 
             /* Reset metadata block information, just in case */
-            f->shared->lf->eoma=0;
-            f->shared->lf->cur_meta_block_size=0;
+            f->shared->lf->eoma = 0;
+            f->shared->lf->cur_meta_block_size = 0;
         } /* end if */
 
-        if (f->shared->lf->feature_flags & H5FD_FEAT_AGGREGATE_SMALLDATA) {
+        if(f->shared->lf->feature_flags & H5FD_FEAT_AGGREGATE_SMALLDATA) {
             /* Return the unused portion of the "small data" block to a free list */
-            if (f->shared->lf->eosda != 0)
-                if (H5FD_free(f->shared->lf, H5FD_MEM_DRAW, dxpl_id,
+            if(f->shared->lf->eosda != 0)
+                if(H5FD_free(f->shared->lf, H5FD_MEM_DRAW, dxpl_id,
                         f->shared->lf->eosda, f->shared->lf->cur_sdata_block_size) < 0)
                     HGOTO_ERROR(H5E_VFL, H5E_CANTFREE, FAIL, "can't free 'small data' block")
 
             /* Reset "small data" block information, just in case */
-            f->shared->lf->eosda=0;
-            f->shared->lf->cur_sdata_block_size=0;
+            f->shared->lf->eosda = 0;
+            f->shared->lf->cur_sdata_block_size = 0;
         } /* end if */
     } /* end if */
 
     /* Write the superblock to disk */
-    if (H5F_write_superblock(f, dxpl_id, NULL) != SUCCEED)
+    if(H5F_write_superblock(f, dxpl_id, NULL) != SUCCEED)
         HGOTO_ERROR(H5E_CACHE, H5E_WRITEERROR, FAIL, "unable to write superblock to file")
 
     /* Flush file buffers to disk. */
-    if (H5FD_flush(f->shared->lf, dxpl_id,
+    if(H5FD_flush(f->shared->lf, dxpl_id,
                    (unsigned)((flags & H5F_FLUSH_CLOSING) > 0)) < 0)
         HGOTO_ERROR(H5E_IO, H5E_WRITEERROR, FAIL, "low level flush failed")
 
@@ -2609,20 +2622,6 @@ H5F_try_close(H5F_t *f)
     if(H5F_close_mounts(f) < 0)
         HGOTO_ERROR(H5E_FILE, H5E_CANTCLOSEFILE, FAIL, "can't unmount child files")
 
-#if H5AC_DUMP_STATS_ON_CLOSE
-    /* Dump debugging info */
-    H5AC_stats(f);
-#endif /* H5AC_DUMP_STATS_ON_CLOSE */
-
-    /* Flush at this point since the file will be closed */
-    /* (Only try to flush the file if it was opened with write access) */
-    if(f->intent&H5F_ACC_RDWR) {
-        /* Flush and destroy all caches */
-        if(H5F_flush(f, H5AC_dxpl_id, H5F_SCOPE_LOCAL,
-                      H5F_FLUSH_INVALIDATE | H5F_FLUSH_CLOSING) < 0)
-            HGOTO_ERROR(H5E_CACHE, H5E_CANTFLUSH, FAIL, "unable to flush cache")
-    } /* end if */
-
     /*
      * Destroy the H5F_t struct and decrement the reference count for the
      * shared H5F_file_t struct. If the reference count for the H5F_file_t
@@ -2706,38 +2705,38 @@ done:
 hid_t
 H5Freopen(hid_t file_id)
 {
-    H5F_t	*old_file=NULL;
-    H5F_t	*new_file=NULL;
+    H5F_t	*old_file = NULL;
+    H5F_t	*new_file = NULL;
     hid_t	ret_value;
 
     FUNC_ENTER_API(H5Freopen, FAIL)
     H5TRACE1("i","i",file_id);
 
-    if (NULL==(old_file=H5I_object_verify(file_id, H5I_FILE)))
+    if(NULL == (old_file = H5I_object_verify(file_id, H5I_FILE)))
 	HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a file")
 
     /* Get a new "top level" file struct, sharing the same "low level" file struct */
-    if (NULL==(new_file=H5F_new(old_file->shared, H5P_FILE_CREATE_DEFAULT, H5P_FILE_ACCESS_DEFAULT, NULL)))
+    if(NULL == (new_file = H5F_new(old_file->shared, H5P_FILE_CREATE_DEFAULT, H5P_FILE_ACCESS_DEFAULT, NULL)))
 	HGOTO_ERROR(H5E_FILE, H5E_CANTINIT, FAIL, "unable to reopen file")
 
     /* Keep old file's read/write intent in new file */
-    new_file->intent=old_file->intent;
+    new_file->intent = old_file->intent;
 
     /* Duplicate old file's name */
     new_file->name = H5MM_xstrdup(old_file->name);
 
-    if ((ret_value=H5I_register(H5I_FILE, new_file)) < 0)
+    if((ret_value = H5I_register(H5I_FILE, new_file)) < 0)
 	HGOTO_ERROR(H5E_ATOM, H5E_CANTREGISTER, FAIL, "unable to atomize file handle")
 
     /* Keep this ID in file object structure */
     new_file->file_id = ret_value;
 
 done:
-    if (ret_value<0 && new_file)
+    if(ret_value < 0 && new_file)
 	if(H5F_dest(new_file, H5AC_dxpl_id) < 0)
 	    HDONE_ERROR(H5E_FILE, H5E_CANTCLOSEFILE, FAIL, "can't close file")
     FUNC_LEAVE_API(ret_value)
-}
+} /* end H5Freopen() */
 
 
 /*-------------------------------------------------------------------------
diff --git a/src/H5HFcache.c b/src/H5HFcache.c
index ae4185d..cd54db1 100644
--- a/src/H5HFcache.c
+++ b/src/H5HFcache.c
@@ -460,6 +460,9 @@ HDfprintf(stderr, "%s: Flushing heap header, addr = %a, destroy = %u\n", FUNC, a
         /* Sanity check */
         HDassert(hdr->dirty);
 
+        /* Set the shared heap header's file context for this operation */
+        hdr->f = f;
+
         /* Compute the size of the heap header on disk */
         size = hdr->heap_size;
 
@@ -706,6 +709,9 @@ HDfprintf(stderr, "%s: Load indirect block, addr = %a\n", FUNC, addr);
     /* Get the pointer to the shared heap header */
     hdr = par_info->hdr;
 
+    /* Set the shared heap header's file context for this operation */
+    hdr->f = f;
+
     /* Share common heap information */
     iblock->hdr = hdr;
     if(H5HF_hdr_incr(hdr) < 0)
@@ -903,6 +909,9 @@ HDfprintf(stderr, "%s: Flushing indirect block, addr = %a, destroy = %u\n", FUNC
         /* Get the pointer to the shared heap header */
         hdr = iblock->hdr;
 
+        /* Set the shared heap header's file context for this operation */
+        hdr->f = f;
+
         /* Allocate buffer to encode block */
 /* XXX: Use free list factories? */
 #ifdef QAK
@@ -1035,6 +1044,9 @@ H5HF_cache_iblock_dest(H5F_t UNUSED *f, H5HF_indirect_t *iblock)
 HDfprintf(stderr, "%s: Destroying indirect block\n", FUNC);
 #endif /* QAK */
 
+    /* Set the shared heap header's file context for this operation */
+    iblock->hdr->f = f;
+
     /* Decrement reference count on shared info */
     HDassert(iblock->hdr);
     if(H5HF_hdr_decr(iblock->hdr) < 0)
@@ -1168,6 +1180,9 @@ H5HF_cache_dblock_load(H5F_t *f, hid_t dxpl_id, haddr_t addr, const void *_size,
     /* Get the pointer to the shared heap header */
     hdr = par_info->hdr;
 
+    /* Set the shared heap header's file context for this operation */
+    hdr->f = f;
+
     /* Share common heap information */
     dblock->hdr = hdr;
     if(H5HF_hdr_incr(hdr) < 0)
@@ -1290,6 +1305,9 @@ H5HF_cache_dblock_flush(H5F_t *f, hid_t dxpl_id, hbool_t destroy, haddr_t addr,
         /* Get the pointer to the shared heap header */
         hdr = dblock->hdr;
 
+        /* Set the shared heap header's file context for this operation */
+        hdr->f = f;
+
         HDassert(dblock->blk);
         p = dblock->blk;
 
@@ -1404,6 +1422,9 @@ H5HF_cache_dblock_dest(H5F_t UNUSED *f, H5HF_direct_t *dblock)
 HDfprintf(stderr, "%s: Destroying direct block, dblock = %p\n", FUNC, dblock);
 #endif /* QAK */
 
+    /* Set the shared heap header's file context for this operation */
+    dblock->hdr->f = f;
+
     /* Decrement reference count on shared fractal heap info */
     HDassert(dblock->hdr);
     if(H5HF_hdr_decr(dblock->hdr) < 0)