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-rw-r--r--src/H5Pdapl.c366
1 files changed, 366 insertions, 0 deletions
diff --git a/src/H5Pdapl.c b/src/H5Pdapl.c
index b72fa58..ad2ae4c 100644
--- a/src/H5Pdapl.c
+++ b/src/H5Pdapl.c
@@ -71,6 +71,17 @@
#define H5D_ACS_VDS_PRINTF_GAP_DEF (hsize_t)0
#define H5D_ACS_VDS_PRINTF_GAP_ENC H5P__encode_hsize_t
#define H5D_ACS_VDS_PRINTF_GAP_DEC H5P__decode_hsize_t
+/* Definitions for VDS file prefix */
+#define H5D_ACS_VDS_PREFIX_SIZE sizeof(char *)
+#define H5D_ACS_VDS_PREFIX_DEF NULL /*default is no prefix */
+#define H5D_ACS_VDS_PREFIX_SET H5P__dapl_vds_file_pref_set
+#define H5D_ACS_VDS_PREFIX_GET H5P__dapl_vds_file_pref_get
+#define H5D_ACS_VDS_PREFIX_ENC H5P__dapl_vds_file_pref_enc
+#define H5D_ACS_VDS_PREFIX_DEC H5P__dapl_vds_file_pref_dec
+#define H5D_ACS_VDS_PREFIX_DEL H5P__dapl_vds_file_pref_del
+#define H5D_ACS_VDS_PREFIX_COPY H5P__dapl_vds_file_pref_copy
+#define H5D_ACS_VDS_PREFIX_CMP H5P__dapl_vds_file_pref_cmp
+#define H5D_ACS_VDS_PREFIX_CLOSE H5P__dapl_vds_file_pref_close
/* Definition for append flush */
#define H5D_ACS_APPEND_FLUSH_SIZE sizeof(H5D_append_flush_t)
#define H5D_ACS_APPEND_FLUSH_DEF {0,{0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0},NULL,NULL}
@@ -112,6 +123,14 @@ static herr_t H5P__decode_chunk_cache_nbytes(const void **_pp, void *_value);
/* Property list callbacks */
static herr_t H5P__dacc_vds_view_enc(const void *value, void **pp, size_t *size, void *udata);
static herr_t H5P__dacc_vds_view_dec(const void **pp, void *value);
+static herr_t H5P__dapl_vds_file_pref_set(hid_t prop_id, const char* name, size_t size, void* value);
+static herr_t H5P__dapl_vds_file_pref_get(hid_t prop_id, const char* name, size_t size, void* value);
+static herr_t H5P__dapl_vds_file_pref_enc(const void *value, void **_pp, size_t *size);
+static herr_t H5P__dapl_vds_file_pref_dec(const void **_pp, void *value);
+static herr_t H5P__dapl_vds_file_pref_del(hid_t prop_id, const char* name, size_t size, void* value);
+static herr_t H5P__dapl_vds_file_pref_copy(const char* name, size_t size, void* value);
+static int H5P__dapl_vds_file_pref_cmp(const void *value1, const void *value2, size_t size);
+static herr_t H5P__dapl_vds_file_pref_close(const char* name, size_t size, void* value);
/* Property list callbacks */
static herr_t H5P__dapl_efile_pref_set(hid_t prop_id, const char* name, size_t size, void* value);
@@ -160,6 +179,7 @@ const H5P_libclass_t H5P_CLS_DACC[1] = {{
/* Property value defaults */
static const H5D_append_flush_t H5D_def_append_flush_g = H5D_ACS_APPEND_FLUSH_DEF; /* Default setting for append flush */
static const char *H5D_def_efile_prefix_g = H5D_ACS_EFILE_PREFIX_DEF; /* Default external file prefix string */
+static const char *H5D_def_vds_prefix_g = H5D_ACS_VDS_PREFIX_DEF; /* Default vds prefix string */
/*-------------------------------------------------------------------------
@@ -210,6 +230,12 @@ H5P__dacc_reg_prop(H5P_genclass_t *pclass)
NULL, NULL, NULL, NULL) < 0)
HGOTO_ERROR(H5E_PLIST, H5E_CANTINSERT, FAIL, "can't insert property into class")
+ /* Register property for vds prefix */
+ if(H5P_register_real(pclass, H5D_ACS_VDS_PREFIX_NAME, H5D_ACS_VDS_PREFIX_SIZE, &H5D_def_vds_prefix_g,
+ NULL, H5D_ACS_VDS_PREFIX_SET, H5D_ACS_VDS_PREFIX_GET, H5D_ACS_VDS_PREFIX_ENC, H5D_ACS_VDS_PREFIX_DEC,
+ H5D_ACS_VDS_PREFIX_DEL, H5D_ACS_VDS_PREFIX_COPY, H5D_ACS_VDS_PREFIX_CMP, H5D_ACS_VDS_PREFIX_CLOSE) < 0)
+ HGOTO_ERROR(H5E_PLIST, H5E_CANTINSERT, FAIL, "can't insert property into class")
+
/* Register info for append flush */
/* (Note: this property should not have an encode/decode callback -QAK) */
if(H5P_register_real(pclass, H5D_ACS_APPEND_FLUSH_NAME, H5D_ACS_APPEND_FLUSH_SIZE, &H5D_def_append_flush_g,
@@ -226,6 +252,254 @@ done:
FUNC_LEAVE_NOAPI(ret_value)
} /* end H5P__dacc_reg_prop() */
+
+/*-------------------------------------------------------------------------
+ * Function: H5P__dapl_vds_file_pref_set
+ *
+ * Purpose: Copies a vds file prefix property when it's set
+ * for a property list
+ *
+ * Return: SUCCEED/FAIL
+ *-------------------------------------------------------------------------
+ */
+static herr_t
+H5P__dapl_vds_file_pref_set(hid_t H5_ATTR_UNUSED prop_id, const char H5_ATTR_UNUSED *name,
+ size_t H5_ATTR_UNUSED size, void *value)
+{
+ FUNC_ENTER_STATIC_NOERR
+
+ /* Sanity check */
+ HDassert(value);
+
+ /* Copy the prefix */
+ *(char **)value = H5MM_xstrdup(*(const char **)value);
+
+ FUNC_LEAVE_NOAPI(SUCCEED)
+} /* end H5P__dapl_vds_file_pref_set() */
+
+
+/*-------------------------------------------------------------------------
+ * Function: H5P__dapl_vds_file_pref_get
+ *
+ * Purpose: Copies a vds file prefix property when it's retrieved
+ * from a property list
+ *
+ * Return: SUCCEED/FAIL
+ *-------------------------------------------------------------------------
+ */
+static herr_t
+H5P__dapl_vds_file_pref_get(hid_t H5_ATTR_UNUSED prop_id, const char H5_ATTR_UNUSED *name,
+ size_t H5_ATTR_UNUSED size, void *value)
+{
+ FUNC_ENTER_STATIC_NOERR
+
+ /* Sanity check */
+ HDassert(value);
+
+ /* Copy the prefix */
+ *(char **)value = H5MM_xstrdup(*(const char **)value);
+
+ FUNC_LEAVE_NOAPI(SUCCEED)
+} /* end H5P__dapl_vds_file_pref_get() */
+
+
+/*-------------------------------------------------------------------------
+ * Function: H5P__dapl_vds_file_pref_enc
+ *
+ * Purpose: Callback routine which is called whenever the vds file flags
+ * property in the dataset access property list is
+ * encoded.
+ *
+ * Return: SUCCEED/FAIL
+ *-------------------------------------------------------------------------
+ */
+static herr_t
+H5P__dapl_vds_file_pref_enc(const void *value, void **_pp, size_t *size)
+{
+ const char *vds_file_pref = *(const char * const *)value;
+ uint8_t **pp = (uint8_t **)_pp;
+ size_t len = 0;
+ uint64_t enc_value;
+ unsigned enc_size;
+
+ FUNC_ENTER_NOAPI_NOINIT_NOERR
+
+ HDcompile_assert(sizeof(size_t) <= sizeof(uint64_t));
+
+ /* calculate prefix length */
+ if(NULL != vds_file_pref)
+ len = HDstrlen(vds_file_pref);
+
+ enc_value = (uint64_t)len;
+ enc_size = H5VM_limit_enc_size(enc_value);
+ HDassert(enc_size < 256);
+
+ if(NULL != *pp) {
+ /* encode the length of the prefix */
+ *(*pp)++ = (uint8_t)enc_size;
+ UINT64ENCODE_VAR(*pp, enc_value, enc_size);
+
+ /* encode the prefix */
+ if(NULL != vds_file_pref) {
+ HDmemcpy(*(char **)pp, vds_file_pref, len);
+ *pp += len;
+ } /* end if */
+ } /* end if */
+
+ *size += (1 + enc_size);
+ if(NULL != vds_file_pref)
+ *size += len;
+
+ FUNC_LEAVE_NOAPI(SUCCEED)
+} /* end H5P__dapl_vds_file_pref_enc() */
+
+
+/*-------------------------------------------------------------------------
+ * Function: H5P__dapl_vds_file_pref_dec
+ *
+ * Purpose: Callback routine which is called whenever the vds file prefix
+ * property in the dataset access property list is
+ * decoded.
+ *
+ * Return: SUCCEED/FAIL
+ *-------------------------------------------------------------------------
+ */
+static herr_t
+H5P__dapl_vds_file_pref_dec(const void **_pp, void *_value)
+{
+ char **vds_file_pref = (char **)_value;
+ const uint8_t **pp = (const uint8_t **)_pp;
+ size_t len;
+ uint64_t enc_value; /* Decoded property value */
+ unsigned enc_size; /* Size of encoded property */
+ herr_t ret_value = SUCCEED;
+
+ FUNC_ENTER_NOAPI_NOINIT
+
+ HDassert(pp);
+ HDassert(*pp);
+ HDassert(vds_file_pref);
+ HDcompile_assert(sizeof(size_t) <= sizeof(uint64_t));
+
+ /* Decode the size */
+ enc_size = *(*pp)++;
+ HDassert(enc_size < 256);
+
+ /* Decode the value */
+ UINT64DECODE_VAR(*pp, enc_value, enc_size);
+ len = (size_t)enc_value;
+
+ if(0 != len) {
+ /* Make a copy of the user's prefix string */
+ if(NULL == (*vds_file_pref = (char *)H5MM_malloc(len + 1)))
+ HGOTO_ERROR(H5E_RESOURCE, H5E_CANTINIT, FAIL, "memory allocation failed for prefix")
+ HDstrncpy(*vds_file_pref, *(const char **)pp, len);
+ (*vds_file_pref)[len] = '\0';
+
+ *pp += len;
+ } /* end if */
+ else
+ *vds_file_pref = NULL;
+
+done:
+ FUNC_LEAVE_NOAPI(ret_value)
+} /* end H5P__dapl_vds_file_pref_dec() */
+
+
+/*-------------------------------------------------------------------------
+ * Function: H5P__dapl_vds_file_pref_del
+ *
+ * Purpose: Frees memory used to store the vds file prefix string
+ *
+ * Return: SUCCEED (Can't fail)
+ *-------------------------------------------------------------------------
+ */
+static herr_t
+H5P__dapl_vds_file_pref_del(hid_t H5_ATTR_UNUSED prop_id, const char H5_ATTR_UNUSED *name,
+ size_t H5_ATTR_UNUSED size, void *value)
+{
+ FUNC_ENTER_NOAPI_NOINIT_NOERR
+
+ HDassert(value);
+
+ H5MM_xfree(*(void **)value);
+
+ FUNC_LEAVE_NOAPI(SUCCEED)
+} /* end H5P__dapl_vds_file_pref_del() */
+
+
+/*-------------------------------------------------------------------------
+ * Function: H5P__dapl_vds_file_pref_copy
+ *
+ * Purpose: Creates a copy of the vds file prefix string
+ *
+ * Return: SUCCEED/FAIL
+ *-------------------------------------------------------------------------
+ */
+static herr_t
+H5P__dapl_vds_file_pref_copy(const char H5_ATTR_UNUSED *name, size_t H5_ATTR_UNUSED size, void *value)
+{
+ FUNC_ENTER_NOAPI_NOINIT_NOERR
+
+ HDassert(value);
+
+ *(char **)value = H5MM_xstrdup(*(const char **)value);
+
+ FUNC_LEAVE_NOAPI(SUCCEED)
+} /* end H5P__dapl_vds_file_pref_copy() */
+
+
+/*-------------------------------------------------------------------------
+ * Function: H5P__dapl_vds_file_pref_cmp
+ *
+ * Purpose: Callback routine which is called whenever the vds file prefix
+ * property in the dataset creation property list is
+ * compared.
+ *
+ * Return: zero if VALUE1 and VALUE2 are equal, non zero otherwise.
+ *-------------------------------------------------------------------------
+ */
+static int
+H5P__dapl_vds_file_pref_cmp(const void *value1, const void *value2, size_t H5_ATTR_UNUSED size)
+{
+ const char *pref1 = *(const char * const *)value1;
+ const char *pref2 = *(const char * const *)value2;
+ int ret_value = 0;
+
+ FUNC_ENTER_NOAPI_NOINIT_NOERR
+
+ if(NULL == pref1 && NULL != pref2)
+ HGOTO_DONE(1);
+ if(NULL != pref1 && NULL == pref2)
+ HGOTO_DONE(-1);
+ if(NULL != pref1 && NULL != pref2)
+ ret_value = HDstrcmp(pref1, pref2);
+
+done:
+ FUNC_LEAVE_NOAPI(ret_value)
+} /* end H5P__dapl_vds_file_pref_cmp() */
+
+
+/*-------------------------------------------------------------------------
+ * Function: H5P__dapl_vds_file_pref_close
+ *
+ * Purpose: Frees memory used to store the vds file prefix string
+ *
+ * Return: SUCCEED/FAIL
+ *-------------------------------------------------------------------------
+ */
+static herr_t
+H5P__dapl_vds_file_pref_close(const char H5_ATTR_UNUSED *name, size_t H5_ATTR_UNUSED size, void *value)
+{
+ FUNC_ENTER_NOAPI_NOINIT_NOERR
+
+ HDassert(value);
+
+ H5MM_xfree(*(void **)value);
+
+ FUNC_LEAVE_NOAPI(SUCCEED)
+} /* end H5P__dapl_vds_file_pref_close() */
+
/*-------------------------------------------------------------------------
* Function: H5P__dapl_efile_pref_set
@@ -1220,3 +1494,95 @@ done:
FUNC_LEAVE_API(ret_value)
} /* end H5Pget_efile_prefix() */
+
+/*-------------------------------------------------------------------------
+ * Function: H5Pset_virtual_prefix
+ *
+ * Purpose: Set a prefix to be applied to the path of any vds files
+ * traversed.
+ *
+ * If the prefix starts with ${ORIGIN}, this will be replaced by
+ * the absolute path of the directory of the HDF5 file containing
+ * the dataset.
+ *
+ * If the prefix is ".", no prefix will be applied.
+ *
+ * This property can be overwritten by the environment variable
+ * HDF5_VDS_PREFIX.
+ *
+ * Return: Non-negative on success/Negative on failure
+ *-------------------------------------------------------------------------
+ */
+herr_t
+H5Pset_virtual_prefix(hid_t plist_id, const char *prefix)
+{
+ H5P_genplist_t *plist; /* Property list pointer */
+ herr_t ret_value = SUCCEED; /* Return value */
+
+ FUNC_ENTER_API(FAIL)
+ H5TRACE2("e", "i*s", plist_id, prefix);
+
+ /* Get the plist structure */
+ if(NULL == (plist = H5P_object_verify(plist_id, H5P_DATASET_ACCESS)))
+ HGOTO_ERROR(H5E_ATOM, H5E_BADATOM, FAIL, "can't find object for ID")
+
+ /* Set prefix */
+ if(H5P_set(plist, H5D_ACS_VDS_PREFIX_NAME, &prefix) < 0)
+ HGOTO_ERROR(H5E_PLIST, H5E_CANTSET, FAIL, "can't set prefix info")
+
+done:
+ FUNC_LEAVE_API(ret_value)
+} /* end H5Pset_virtual_prefix() */
+
+
+/*-------------------------------------------------------------------------
+ * Function: H5Pget_virtual_prefix
+ *
+ * Purpose: Gets the prefix to be applied to any vds file
+ * traversals made using this property list.
+ *
+ * If the pointer is not NULL, it points to a user-allocated
+ * buffer.
+ *
+ * Return: Non-negative on success/Negative on failure
+ *-------------------------------------------------------------------------
+ */
+ssize_t
+H5Pget_virtual_prefix(hid_t plist_id, char *prefix, size_t size)
+{
+ H5P_genplist_t *plist; /* Property list pointer */
+ char *my_prefix; /* Library's copy of the prefix */
+ size_t len; /* Length of prefix string */
+ ssize_t ret_value; /* Return value */
+
+ FUNC_ENTER_API(FAIL)
+ H5TRACE3("Zs", "i*sz", plist_id, prefix, size);
+
+ /* Get the plist structure */
+ if(NULL == (plist = H5P_object_verify(plist_id, H5P_DATASET_ACCESS)))
+ HGOTO_ERROR(H5E_ATOM, H5E_BADATOM, FAIL, "can't find object for ID")
+
+ /* Get the current prefix */
+ if(H5P_peek(plist, H5D_ACS_VDS_PREFIX_NAME, &my_prefix) < 0)
+ HGOTO_ERROR(H5E_PLIST, H5E_CANTGET, FAIL, "can't get vds file prefix")
+
+ /* Check for prefix being set */
+ if(my_prefix) {
+ /* Copy to user's buffer, if given */
+ len = HDstrlen(my_prefix);
+ if(prefix) {
+ HDstrncpy(prefix, my_prefix, MIN(len + 1, size));
+ if(len >= size)
+ prefix[size - 1] = '\0';
+ } /* end if */
+ } /* end if */
+ else
+ len = 0;
+
+ /* Set return value */
+ ret_value = (ssize_t)len;
+
+done:
+ FUNC_LEAVE_API(ret_value)
+} /* end H5Pget_virtual_prefix() */
+