diff options
Diffstat (limited to 'src/H5E.c')
| -rw-r--r-- | src/H5E.c | 109 |
1 files changed, 109 insertions, 0 deletions
@@ -85,6 +85,7 @@ static H5E_t * H5E__get_current_stack(void); static herr_t H5E__set_current_stack(H5E_t *estack); static herr_t H5E__close_stack(H5E_t *err_stack, void **request); static ssize_t H5E__get_num(const H5E_t *err_stack); +static herr_t H5E__append_stack(H5E_t *dst_estack, const H5E_t *src_stack); /*********************/ /* Package Variables */ @@ -1667,3 +1668,111 @@ H5Eauto_is_v2(hid_t estack_id, unsigned *is_stack) done: FUNC_LEAVE_API(ret_value) } /* end H5Eauto_is_v2() */ + +/*------------------------------------------------------------------------- + * Function: H5Eappend_stack + * + * Purpose: Appends one error stack to another, optionally closing the + * source stack. + * + * Return: Non-negative value on success/Negative on failure + * + * Programmer: Quincey Koziol + * Wednesday, October 7, 2020 + * + *------------------------------------------------------------------------- + */ +herr_t +H5Eappend_stack(hid_t dst_stack_id, hid_t src_stack_id, hbool_t close_source_stack) +{ + H5E_t *dst_stack, *src_stack; /* Error stacks */ + herr_t ret_value = SUCCEED; /* Return value */ + + /* Don't clear the error stack! :-) */ + FUNC_ENTER_API(FAIL) + H5TRACE3("e", "iib", dst_stack_id, src_stack_id, close_source_stack); + + /* Check args */ + if (NULL == (dst_stack = (H5E_t *)H5I_object_verify(dst_stack_id, H5I_ERROR_STACK))) + HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "dst_stack_id not a error stack ID") + if (NULL == (src_stack = (H5E_t *)H5I_object_verify(src_stack_id, H5I_ERROR_STACK))) + HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "src_stack_id not a error stack ID") + + /* Append the source stack to the destination stack */ + if (H5E__append_stack(dst_stack, src_stack) < 0) + HGOTO_ERROR(H5E_ERROR, H5E_CANTAPPEND, FAIL, "can't append stack") + + /* Close source error stack, if requested */ + if (close_source_stack) + /* Decrement the counter on the error stack. It will be freed if the + * count reaches zero. + */ + if (H5I_dec_app_ref(src_stack_id) < 0) + HGOTO_ERROR(H5E_ERROR, H5E_CANTDEC, FAIL, "unable to decrement ref count on source error stack") + +done: + FUNC_LEAVE_API(ret_value) +} /* end H5Eappend_stack() */ + +/*------------------------------------------------------------------------- + * Function: H5E__append_stack + * + * Purpose: Private function to append error stacks. + * + * Return: Non-negative value on success/Negative on failure + * + * Programmer: Quincey Koziol + * Wednesday, October 7, 2020 + * + *------------------------------------------------------------------------- + */ +static herr_t +H5E__append_stack(H5E_t *dst_stack, const H5E_t *src_stack) +{ + unsigned u; /* Local index variable */ + herr_t ret_value = SUCCEED; /* Return value */ + + FUNC_ENTER_STATIC + + /* Sanity checks */ + HDassert(dst_stack); + HDassert(src_stack); + + /* Copy the errors from the source stack to the destination stack */ + for (u = 0; u < src_stack->nused; u++) { + const H5E_error2_t *src_error; /* Pointers to source error on stack */ + H5E_error2_t * dst_error; /* Pointers to destination error on stack */ + + /* Get pointers into the current error stack location */ + src_error = &(src_stack->slot[u]); + dst_error = &(dst_stack->slot[dst_stack->nused]); + + /* Increment the IDs to indicate that they are used in this stack */ + if (H5I_inc_ref(src_error->cls_id, FALSE) < 0) + HGOTO_ERROR(H5E_ERROR, H5E_CANTINC, FAIL, "unable to increment ref count on error class") + dst_error->cls_id = src_error->cls_id; + if (H5I_inc_ref(src_error->maj_num, FALSE) < 0) + HGOTO_ERROR(H5E_ERROR, H5E_CANTINC, FAIL, "unable to increment ref count on error message") + dst_error->maj_num = src_error->maj_num; + if (H5I_inc_ref(src_error->min_num, FALSE) < 0) + HGOTO_ERROR(H5E_ERROR, H5E_CANTINC, FAIL, "unable to increment ref count on error message") + dst_error->min_num = src_error->min_num; + if (NULL == (dst_error->func_name = H5MM_xstrdup(src_error->func_name))) + HGOTO_ERROR(H5E_ERROR, H5E_CANTALLOC, FAIL, "memory allocation failed") + if (NULL == (dst_error->file_name = H5MM_xstrdup(src_error->file_name))) + HGOTO_ERROR(H5E_ERROR, H5E_CANTALLOC, FAIL, "memory allocation failed") + dst_error->line = src_error->line; + if (NULL == (dst_error->desc = H5MM_xstrdup(src_error->desc))) + HGOTO_ERROR(H5E_ERROR, H5E_CANTALLOC, FAIL, "memory allocation failed") + + /* Increment # of errors in destination stack */ + dst_stack->nused++; + + /* Check for destination stack full */ + if (dst_stack->nused >= H5E_NSLOTS) + break; + } /* end for */ + +done: + FUNC_LEAVE_NOAPI(ret_value) +} /* end H5E__append_stack() */ |