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-rw-r--r--src/H5Dearray.c94
1 files changed, 86 insertions, 8 deletions
diff --git a/src/H5Dearray.c b/src/H5Dearray.c
index 3f12e97..e9dbd0d 100644
--- a/src/H5Dearray.c
+++ b/src/H5Dearray.c
@@ -148,6 +148,7 @@ static herr_t H5D__earray_idx_dest(const H5D_chk_idx_info_t *idx_info);
/* Generic extensible array routines */
static herr_t H5D__earray_idx_open(const H5D_chk_idx_info_t *idx_info);
+static herr_t H5D__earray_idx_depend(const H5D_chk_idx_info_t *idx_info);
/*********************/
@@ -156,6 +157,7 @@ static herr_t H5D__earray_idx_open(const H5D_chk_idx_info_t *idx_info);
/* Extensible array indexed chunk I/O ops */
const H5D_chunk_ops_t H5D_COPS_EARRAY[1] = {{
+ TRUE, /* Extensible array indices support SWMR access */
H5D__earray_idx_init, /* init */
H5D__earray_idx_create, /* create */
H5D__earray_idx_is_space_alloc, /* is_space_alloc */
@@ -716,6 +718,68 @@ H5D__earray_dst_dbg_context(void *_dbg_ctx)
/*-------------------------------------------------------------------------
+ * Function: H5D__earray_idx_depend
+ *
+ * Purpose: Create flush dependency between extensible array and dataset's
+ * object header.
+ *
+ * Return: Success: non-negative
+ * Failure: negative
+ *
+ * Programmer: Quincey Koziol
+ * Tuesday, June 2, 2009
+ *
+ *-------------------------------------------------------------------------
+ */
+static herr_t
+H5D__earray_idx_depend(const H5D_chk_idx_info_t *idx_info)
+{
+ H5O_t *oh = NULL; /* Object header */
+ H5O_loc_t oloc; /* Temporary object header location for dataset */
+ H5AC_proxy_entry_t *oh_proxy; /* Dataset's object header proxy */
+ herr_t ret_value = SUCCEED; /* Return value */
+
+ FUNC_ENTER_STATIC
+
+ /* Check args */
+ HDassert(idx_info);
+ HDassert(idx_info->f);
+ HDassert(H5F_INTENT(idx_info->f) & H5F_ACC_SWMR_WRITE);
+ HDassert(idx_info->pline);
+ HDassert(idx_info->layout);
+ HDassert(H5D_CHUNK_IDX_EARRAY == idx_info->layout->idx_type);
+ HDassert(idx_info->storage);
+ HDassert(H5D_CHUNK_IDX_EARRAY == idx_info->storage->idx_type);
+ HDassert(H5F_addr_defined(idx_info->storage->idx_addr));
+ HDassert(idx_info->storage->u.earray.ea);
+
+ /* Set up object header location for dataset */
+ H5O_loc_reset(&oloc);
+ oloc.file = idx_info->f;
+ oloc.addr = idx_info->storage->u.earray.dset_ohdr_addr;
+
+ /* Get header */
+ if(NULL == (oh = H5O_protect(&oloc, idx_info->dxpl_id, H5AC__READ_ONLY_FLAG, TRUE)))
+ HGOTO_ERROR(H5E_DATASET, H5E_CANTPROTECT, FAIL, "unable to protect object header")
+
+ /* Retrieve the dataset's object header proxy */
+ if(NULL == (oh_proxy = H5O_get_proxy(oh)))
+ HGOTO_ERROR(H5E_DATASET, H5E_CANTGET, FAIL, "unable to get dataset object header proxy")
+
+ /* Make the extensible array a child flush dependency of the dataset's object header */
+ if(H5EA_depend(idx_info->storage->u.earray.ea, idx_info->dxpl_id, oh_proxy) < 0)
+ HGOTO_ERROR(H5E_DATASET, H5E_CANTDEPEND, FAIL, "unable to create flush dependency on object header proxy")
+
+done:
+ /* Release the object header from the cache */
+ if(oh && H5O_unprotect(&oloc, idx_info->dxpl_id, oh, H5AC__NO_FLAGS_SET) < 0)
+ HDONE_ERROR(H5E_DATASET, H5E_CANTUNPROTECT, FAIL, "unable to release object header")
+
+ FUNC_LEAVE_NOAPI(ret_value)
+} /* end H5D__earray_idx_depend() */
+
+
+/*-------------------------------------------------------------------------
* Function: H5D__earray_idx_open
*
* Purpose: Opens an existing extensible array.
@@ -760,6 +824,11 @@ H5D__earray_idx_open(const H5D_chk_idx_info_t *idx_info)
if(NULL == (idx_info->storage->u.earray.ea = H5EA_open(idx_info->f, idx_info->dxpl_id, idx_info->storage->idx_addr, &udata)))
HGOTO_ERROR(H5E_DATASET, H5E_CANTINIT, FAIL, "can't open extensible array")
+ /* Check for SWMR writes to the file */
+ if(H5F_INTENT(idx_info->f) & H5F_ACC_SWMR_WRITE)
+ if(H5D__earray_idx_depend(idx_info) < 0)
+ HGOTO_ERROR(H5E_DATASET, H5E_CANTDEPEND, FAIL, "unable to create flush dependency on object header")
+
done:
FUNC_LEAVE_NOAPI(ret_value)
} /* end H5D__earray_idx_open() */
@@ -910,6 +979,11 @@ H5D__earray_idx_create(const H5D_chk_idx_info_t *idx_info)
if(H5EA_get_addr(idx_info->storage->u.earray.ea, &(idx_info->storage->idx_addr)) < 0)
HGOTO_ERROR(H5E_DATASET, H5E_CANTGET, FAIL, "can't query extensible array address")
+ /* Check for SWMR writes to the file */
+ if(H5F_INTENT(idx_info->f) & H5F_ACC_SWMR_WRITE)
+ if(H5D__earray_idx_depend(idx_info) < 0)
+ HGOTO_ERROR(H5E_DATASET, H5E_CANTDEPEND, FAIL, "unable to create flush dependency on object header")
+
done:
FUNC_LEAVE_NOAPI(ret_value)
} /* end H5D__earray_idx_create() */
@@ -1355,11 +1429,13 @@ H5D__earray_idx_remove(const H5D_chk_idx_info_t *idx_info, H5D_chunk_common_ud_t
if(H5EA_get(ea, idx_info->dxpl_id, idx, &elmt) < 0)
HGOTO_ERROR(H5E_DATASET, H5E_CANTGET, FAIL, "can't get chunk info")
- /* Remove raw data chunk from file */
+ /* Remove raw data chunk from file if not doing SWMR writes */
HDassert(H5F_addr_defined(elmt.addr));
- H5_CHECK_OVERFLOW(elmt.nbytes, /*From: */uint32_t, /*To: */hsize_t);
- if(H5MF_xfree(idx_info->f, H5FD_MEM_DRAW, idx_info->dxpl_id, elmt.addr, (hsize_t)elmt.nbytes) < 0)
- HGOTO_ERROR(H5E_DATASET, H5E_CANTFREE, FAIL, "unable to free chunk")
+ if(!(H5F_INTENT(idx_info->f) & H5F_ACC_SWMR_WRITE)) {
+ H5_CHECK_OVERFLOW(elmt.nbytes, /*From: */uint32_t, /*To: */hsize_t);
+ if(H5MF_xfree(idx_info->f, H5FD_MEM_DRAW, idx_info->dxpl_id, elmt.addr, (hsize_t)elmt.nbytes) < 0)
+ HGOTO_ERROR(H5E_DATASET, H5E_CANTFREE, FAIL, "unable to free chunk")
+ } /* end if */
/* Reset the info about the chunk for the index */
elmt.addr = HADDR_UNDEF;
@@ -1375,11 +1451,13 @@ H5D__earray_idx_remove(const H5D_chk_idx_info_t *idx_info, H5D_chunk_common_ud_t
if(H5EA_get(ea, idx_info->dxpl_id, idx, &addr) < 0)
HGOTO_ERROR(H5E_DATASET, H5E_CANTGET, FAIL, "can't get chunk address")
- /* Remove raw data chunk from file */
+ /* Remove raw data chunk from file if not doing SWMR writes */
HDassert(H5F_addr_defined(addr));
- H5_CHECK_OVERFLOW(idx_info->layout->size, /*From: */uint32_t, /*To: */hsize_t);
- if(H5MF_xfree(idx_info->f, H5FD_MEM_DRAW, idx_info->dxpl_id, addr, (hsize_t)idx_info->layout->size) < 0)
- HGOTO_ERROR(H5E_DATASET, H5E_CANTFREE, FAIL, "unable to free chunk")
+ if(!(H5F_INTENT(idx_info->f) & H5F_ACC_SWMR_WRITE)) {
+ H5_CHECK_OVERFLOW(idx_info->layout->size, /*From: */uint32_t, /*To: */hsize_t);
+ if(H5MF_xfree(idx_info->f, H5FD_MEM_DRAW, idx_info->dxpl_id, addr, (hsize_t)idx_info->layout->size) < 0)
+ HGOTO_ERROR(H5E_DATASET, H5E_CANTFREE, FAIL, "unable to free chunk")
+ } /* end if */
/* Reset the address of the chunk for the index */
addr = HADDR_UNDEF;
generated by cgit v0.12 at 2024-11-16 05:43:52 (GMT)