diff options
Diffstat (limited to 'src/H5CX.c')
| -rw-r--r-- | src/H5CX.c | 101 |
1 files changed, 98 insertions, 3 deletions
@@ -299,6 +299,11 @@ typedef struct H5CX_t { bool no_selection_io_cause_set; /* Whether reason for not performing selection I/O is set */ bool no_selection_io_cause_valid; /* Whether reason for not performing selection I/O is valid */ + uint32_t + actual_selection_io_mode; /* Actual selection I/O mode used (H5D_ACTUAL_SELECTION_IO_MODE_NAME) */ + hbool_t actual_selection_io_mode_set; /* Whether actual selection I/O mode is set */ + hbool_t actual_selection_io_mode_valid; /* Whether actual selection I/O mode is valid */ + /* Cached LCPL properties */ H5T_cset_t encoding; /* Link name character encoding */ bool encoding_valid; /* Whether link name character encoding is valid */ @@ -380,6 +385,8 @@ typedef struct H5CX_dxpl_cache_t { H5D_selection_io_mode_t selection_io_mode; /* Selection I/O mode (H5D_XFER_SELECTION_IO_MODE_NAME) */ uint32_t no_selection_io_cause; /* Reasons for not performing selection I/O (H5D_XFER_NO_SELECTION_IO_CAUSE_NAME) */ + uint32_t actual_selection_io_mode; /* Actual selection I/O mode + (H5D_XFER_ACTUAL_SELECTION_IO_MODE_NAME) */ bool modify_write_buf; /* Whether the library can modify write buffers */ } H5CX_dxpl_cache_t; @@ -571,13 +578,18 @@ H5CX_init(void) /* Get the selection I/O mode */ if (H5P_get(dx_plist, H5D_XFER_SELECTION_IO_MODE_NAME, &H5CX_def_dxpl_cache.selection_io_mode) < 0) - HGOTO_ERROR(H5E_CONTEXT, H5E_CANTGET, FAIL, "Can't retrieve parallel transfer method"); + HGOTO_ERROR(H5E_CONTEXT, H5E_CANTGET, FAIL, "Can't retrieve selection I/O mode"); /* Get the local & global reasons for breaking selection I/O values */ if (H5P_get(dx_plist, H5D_XFER_NO_SELECTION_IO_CAUSE_NAME, &H5CX_def_dxpl_cache.no_selection_io_cause) < 0) HGOTO_ERROR(H5E_CONTEXT, H5E_CANTGET, FAIL, "Can't retrieve cause for no selection I/O"); + /* Get the actual selection I/O mode */ + if (H5P_get(dx_plist, H5D_XFER_ACTUAL_SELECTION_IO_MODE_NAME, + &H5CX_def_dxpl_cache.actual_selection_io_mode) < 0) + HGOTO_ERROR(H5E_CONTEXT, H5E_CANTGET, FAIL, "Can't retrieve actual selection I/O mode"); + /* Get the modify write buffer property */ if (H5P_get(dx_plist, H5D_XFER_MODIFY_WRITE_BUF_NAME, &H5CX_def_dxpl_cache.modify_write_buf) < 0) HGOTO_ERROR(H5E_CONTEXT, H5E_CANTGET, FAIL, "Can't retrieve modify write buffer property"); @@ -2515,6 +2527,47 @@ done: } /* end H5CX_get_no_selection_io_cause() */ /*------------------------------------------------------------------------- + * Function: H5CX_get_actual_selection_io_mode + * + * Purpose: Retrieves the actual I/O mode (scalar, vector, and/or selection) for the current API call + *context. + * + * Return: Non-negative on success / Negative on failure + * + *------------------------------------------------------------------------- + */ +herr_t +H5CX_get_actual_selection_io_mode(uint32_t *actual_selection_io_mode) +{ + H5CX_node_t **head = NULL; /* Pointer to head of API context list */ + herr_t ret_value = SUCCEED; /* Return value */ + + FUNC_ENTER_NOAPI(FAIL) + + /* Sanity check */ + assert(actual_selection_io_mode); + head = H5CX_get_my_context(); /* Get the pointer to the head of the API context, for this thread */ + assert(head && *head); + assert(H5P_DEFAULT != (*head)->ctx.dxpl_id); + + /* This property is a special case - we want to wipe out any previous setting. Copy the default setting + * if it has not been set yet. */ + if ((*head)->ctx.dxpl_id != H5P_DATASET_XFER_DEFAULT && !(*head)->ctx.actual_selection_io_mode_set && + !(*head)->ctx.actual_selection_io_mode_valid) { + (*head)->ctx.actual_selection_io_mode = H5CX_def_dxpl_cache.actual_selection_io_mode; + (*head)->ctx.actual_selection_io_mode_set = true; + } + H5CX_RETRIEVE_PROP_VALID_SET(dxpl, H5P_DATASET_XFER_DEFAULT, H5D_XFER_ACTUAL_SELECTION_IO_MODE_NAME, + actual_selection_io_mode) + + /* Get the value */ + *actual_selection_io_mode = (*head)->ctx.actual_selection_io_mode; + +done: + FUNC_LEAVE_NOAPI(ret_value) +} /* end H5CX_get_actual_selection_io_mode() */ + +/*------------------------------------------------------------------------- * Function: H5CX_get_modify_write_buf * * Purpose: Retrieves the modify write buffer property for the current API call context. @@ -3443,7 +3496,7 @@ done: #endif /* H5_HAVE_PARALLEL */ /*------------------------------------------------------------------------- - * Function: H5CX_set_no_selecction_io_cause + * Function: H5CX_set_no_selection_io_cause * * Purpose: Sets the reason for not performing selection I/O for * the current API call context. @@ -3472,7 +3525,39 @@ H5CX_set_no_selection_io_cause(uint32_t no_selection_io_cause) } /* end if */ FUNC_LEAVE_NOAPI_VOID -} /* end H5CX_set_no_selectiion_io_cause() */ +} /* end H5CX_set_no_selection_io_cause() */ + +/*------------------------------------------------------------------------- + * Function: H5CX_set_actual_selection_io_mode + * + * Purpose: Sets the actual selection I/O mode for the current API + * call context. + * + * Return: <none> + * + *------------------------------------------------------------------------- + */ +void +H5CX_set_actual_selection_io_mode(uint32_t actual_selection_io_mode) +{ + H5CX_node_t **head = NULL; /* Pointer to head of API context list */ + + FUNC_ENTER_NOAPI_NOINIT_NOERR + + /* Sanity checks */ + head = H5CX_get_my_context(); /* Get the pointer to the head of the API context, for this thread */ + assert(head && *head); + assert((*head)->ctx.dxpl_id != H5P_DEFAULT); + + /* If we're using the default DXPL, don't modify it */ + if ((*head)->ctx.dxpl_id != H5P_DATASET_XFER_DEFAULT) { + /* Cache the value for later, marking it to set in DXPL when context popped */ + (*head)->ctx.actual_selection_io_mode = actual_selection_io_mode; + (*head)->ctx.actual_selection_io_mode_set = true; + } + + FUNC_LEAVE_NOAPI_VOID +} /* end H5CX_set_actual_selection_io_mode() */ /*------------------------------------------------------------------------- * Function: H5CX_get_ohdr_flags @@ -3529,7 +3614,17 @@ H5CX__pop_common(bool update_dxpl_props) /* Check for cached DXPL properties to return to application */ if (update_dxpl_props) { + /* actual_selection_io_mode is a special case - we always want to set it in the property list even if + * it was never set by the library, in that case it indicates no I/O was performed and we don't want + * to leave the (possibly incorrect) old value in the property list, so set from the default property + * list */ + if ((*head)->ctx.dxpl_id != H5P_DATASET_XFER_DEFAULT && !(*head)->ctx.actual_selection_io_mode_set) { + (*head)->ctx.actual_selection_io_mode = H5CX_def_dxpl_cache.actual_selection_io_mode; + (*head)->ctx.actual_selection_io_mode_set = true; + } + H5CX_SET_PROP(H5D_XFER_NO_SELECTION_IO_CAUSE_NAME, no_selection_io_cause) + H5CX_SET_PROP(H5D_XFER_ACTUAL_SELECTION_IO_MODE_NAME, actual_selection_io_mode) #ifdef H5_HAVE_PARALLEL H5CX_SET_PROP(H5D_MPIO_ACTUAL_CHUNK_OPT_MODE_NAME, mpio_actual_chunk_opt) H5CX_SET_PROP(H5D_MPIO_ACTUAL_IO_MODE_NAME, mpio_actual_io_mode) |