diff options
Diffstat (limited to 'src/H5Plapl.c')
| -rw-r--r-- | src/H5Plapl.c | 181 |
1 files changed, 181 insertions, 0 deletions
diff --git a/src/H5Plapl.c b/src/H5Plapl.c index e7b4381..664dab2 100644 --- a/src/H5Plapl.c +++ b/src/H5Plapl.c @@ -62,6 +62,14 @@ #define H5L_ACS_ELINK_FAPL_COPY H5P_lacc_elink_fapl_copy #define H5L_ACS_ELINK_FAPL_CLOSE H5P_lacc_elink_fapl_close +/* Definitions for file access flags for external link traversal */ +#define H5L_ACS_ELINK_FLAGS_SIZE sizeof(unsigned) +#define H5L_ACS_ELINK_FLAGS_DEF H5F_ACC_DEFAULT + +/* Definitions for callback function for external link traversal */ +#define H5L_ACS_ELINK_CB_SIZE sizeof(H5L_elink_cb_t) +#define H5L_ACS_ELINK_CB_DEF {NULL,NULL} + /******************/ /* Local Typedefs */ /******************/ @@ -142,6 +150,9 @@ H5P_lacc_reg_prop(H5P_genclass_t *pclass) size_t nlinks = H5L_ACS_NLINKS_DEF; /* Default number of soft links to traverse */ char *elink_prefix = H5L_ACS_ELINK_PREFIX_DEF; /* Default external link prefix string */ hid_t def_fapl_id = H5L_ACS_ELINK_FAPL_DEF; /* Default fapl for external link access */ + unsigned elink_flags = H5L_ACS_ELINK_FLAGS_DEF; /* Default file access flags for external link traversal */ + H5L_elink_cb_t elink_cb = H5L_ACS_ELINK_CB_DEF; /* Default external link traversal callback */ + herr_t ret_value = SUCCEED; /* Return value */ FUNC_ENTER_NOAPI_NOINIT(H5P_lacc_reg_prop) @@ -160,6 +171,16 @@ H5P_lacc_reg_prop(H5P_genclass_t *pclass) if(H5P_register(pclass, H5L_ACS_ELINK_FAPL_NAME, H5L_ACS_ELINK_FAPL_SIZE, &def_fapl_id, NULL, NULL, NULL, H5L_ACS_ELINK_FAPL_DEL, H5L_ACS_ELINK_FAPL_COPY, NULL, H5L_ACS_ELINK_FAPL_CLOSE) < 0) HGOTO_ERROR(H5E_PLIST, H5E_CANTINSERT, FAIL, "can't insert property into class") + /* Register property for external link file access flags */ + if(H5P_register(pclass, H5L_ACS_ELINK_FLAGS_NAME, H5L_ACS_ELINK_FLAGS_SIZE, + &elink_flags, NULL, NULL, NULL, NULL, NULL, NULL, NULL) < 0) + HGOTO_ERROR(H5E_PLIST, H5E_CANTINSERT, FAIL, "can't insert property into class") + + /* Register property for external link file traversal callback */ + if(H5P_register(pclass, H5L_ACS_ELINK_CB_NAME, H5L_ACS_ELINK_CB_SIZE, + &elink_cb, NULL, NULL, NULL, NULL, NULL, NULL, NULL) < 0) + HGOTO_ERROR(H5E_PLIST, H5E_CANTINSERT, FAIL, "can't insert property into class") + done: FUNC_LEAVE_NOAPI(ret_value) } /* end H5P_lacc_reg_prop() */ @@ -634,3 +655,163 @@ done: FUNC_LEAVE_API(ret_value); } /* end H5Pget_elink_fapl() */ + +/*------------------------------------------------------------------------- + * Function: H5Pset_elink_acc_flags + * + * Purpose: Sets the file access flags to be used when traversing an + * external link. This should be either H5F_ACC_RDONLY or + * H5F_ACC_RDWR, or H5F_ACC_DEFAULT to unset the value. + * + * Return: Non-negative on success/Negative on failure + * + * Programmer: Neil Fortner + * Tuesday, December 9, 2008 + * + *------------------------------------------------------------------------- + */ +herr_t +H5Pset_elink_acc_flags(hid_t lapl_id, unsigned flags) +{ + H5P_genplist_t *plist; /* Property list pointer */ + herr_t ret_value = SUCCEED; /* Return value */ + + FUNC_ENTER_API(H5Pset_elink_acc_flags, FAIL) + + /* Check that flags are valid */ + if((flags != H5F_ACC_RDWR) && (flags != H5F_ACC_RDONLY) && (flags != H5F_ACC_DEFAULT)) + HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "invalid file open flags") + + /* Get the plist structure */ + if(NULL == (plist = H5P_object_verify(lapl_id, H5P_LINK_ACCESS))) + HGOTO_ERROR(H5E_ATOM, H5E_BADATOM, FAIL, "can't find object for ID") + + /* Set flags */ + if(H5P_set(plist, H5L_ACS_ELINK_FLAGS_NAME, &flags) < 0) + HGOTO_ERROR(H5E_PLIST, H5E_CANTSET, FAIL, "can't set access flags") + +done: + FUNC_LEAVE_API(ret_value) +} /* end H5Pset_elink_acc_flags() */ + + +/*------------------------------------------------------------------------- + * Function: H5Pget_elink_acc_flags + * + * Purpose: Gets the file access flags to be used when traversing an + * external link. + * + * Return: Non-negative on success/Negative on failure + * + * Programmer: Neil Fortner + * Tuesday, December 9, 2008 + * + *------------------------------------------------------------------------- + */ +herr_t +H5Pget_elink_acc_flags(hid_t lapl_id, unsigned *flags) +{ + H5P_genplist_t *plist; /* Property list pointer */ + herr_t ret_value = SUCCEED; /* Return value */ + + FUNC_ENTER_API(H5Pget_elink_acc_flags, FAIL) + + /* Get the plist structure */ + if(NULL == (plist = H5P_object_verify(lapl_id, H5P_LINK_ACCESS))) + HGOTO_ERROR(H5E_ATOM, H5E_BADATOM, FAIL, "can't find object for ID") + + /* Get flags */ + if (flags) + if(H5P_get(plist, H5L_ACS_ELINK_FLAGS_NAME, flags)<0) + HGOTO_ERROR(H5E_PLIST, H5E_CANTGET, 0, "can't get access flags") + +done: + FUNC_LEAVE_API(ret_value) +} /* end H5Pget_elink_acc_flags() */ + + +/*------------------------------------------------------------------------- + * Function: H5Pset_elink_cb + * + * Purpose: Sets the file access flags to be used when traversing an + * external link. This should be either H5F_ACC_RDONLY or + * H5F_ACC_RDWR. + * + * Return: Non-negative on success/Negative on failure + * + * Programmer: Neil Fortner + * Tuesday, December 15, 2008 + * + *------------------------------------------------------------------------- + */ +herr_t +H5Pset_elink_cb(hid_t lapl_id, H5L_elink_traverse_t func, void *op_data) +{ + H5P_genplist_t *plist; /* Property list pointer */ + H5L_elink_cb_t cb_info; /* Callback info struct */ + herr_t ret_value = SUCCEED; /* Return value */ + + FUNC_ENTER_API(H5Pset_elink_cb, FAIL) + + /* Check if the callback function is NULL and the user data is non-NULL. + * This is almost certainly an error as the user data will not be used. */ + if(!func && op_data) + HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "callback is NULL while user data is not") + + /* Get the plist structure */ + if(NULL == (plist = H5P_object_verify(lapl_id, H5P_LINK_ACCESS))) + HGOTO_ERROR(H5E_ATOM, H5E_BADATOM, FAIL, "can't find object for ID") + + /* Populate the callback info struct */ + cb_info.func = func; + cb_info.user_data = op_data; + + /* Set callback info */ + if(H5P_set(plist, H5L_ACS_ELINK_CB_NAME, &cb_info) < 0) + HGOTO_ERROR(H5E_PLIST, H5E_CANTSET, FAIL, "can't set callback info") + +done: + FUNC_LEAVE_API(ret_value) +} /* end H5Pset_elink_acc_flags() */ + + +/*------------------------------------------------------------------------- + * Function: H5Pget_elink_cb + * + * Purpose: Gets the file access flags to be used when traversing an + * external link. + * + * Return: Non-negative on success/Negative on failure + * + * Programmer: Neil Fortner + * Tuesday, December 15, 2008 + * + *------------------------------------------------------------------------- + */ +herr_t +H5Pget_elink_cb(hid_t lapl_id, H5L_elink_traverse_t *func, void **op_data) +{ + H5P_genplist_t *plist; /* Property list pointer */ + H5L_elink_cb_t cb_info; /* Callback info struct */ + herr_t ret_value = SUCCEED; /* Return value */ + + FUNC_ENTER_API(H5Pget_elink_cb, FAIL) + + /* Get the plist structure */ + if(NULL == (plist = H5P_object_verify(lapl_id, H5P_LINK_ACCESS))) + HGOTO_ERROR(H5E_ATOM, H5E_BADATOM, FAIL, "can't find object for ID") + + /* Get callback_info */ + if(H5P_get(plist, H5L_ACS_ELINK_CB_NAME, &cb_info)<0) + HGOTO_ERROR(H5E_PLIST, H5E_CANTGET, FAIL, "can't get callback info") + + if(func) + *func = cb_info.func; + + if(op_data) + *op_data = cb_info.user_data; + +done: + FUNC_LEAVE_API(ret_value) +} /* end H5Pget_elink_cb() */ + |