/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * Copyright by the Board of Trustees of the University of Illinois. * * All rights reserved. * * * * This file is part of HDF5. The full HDF5 copyright notice, including * * terms governing use, modification, and redistribution, is contained in * * the files COPYING and Copyright.html. COPYING can be found at the root * * of the source code distribution tree; Copyright.html can be found at the * * root level of an installed copy of the electronic HDF5 document set and * * is linked from the top-level documents page. It can also be found at * * http://hdf.ncsa.uiuc.edu/HDF5/doc/Copyright.html. If you do not have * * access to either file, you may request a copy from hdfhelp@ncsa.uiuc.edu. * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */ /* $Id$ */ #define H5P_PACKAGE /*suppress error about including H5Ppkg */ /* Private header files */ #include "H5private.h" /* Generic Functions */ #include "H5Dprivate.h" /* Datasets */ #include "H5Eprivate.h" /* Error handling */ #include "H5Fprivate.h" /* Files */ #include "H5FDprivate.h" /* File drivers */ #include "H5Iprivate.h" /* IDs */ #include "H5Ppkg.h" /* Property lists */ /* Default file driver - see H5Pget_driver() */ #include "H5FDsec2.h" /* Posix unbuffered I/O file driver */ /* Pablo mask */ #define PABLO_MASK H5Pfapl_mask /* Interface initialization */ #define INTERFACE_INIT NULL static int interface_initialize_g = 0; /* Local datatypes */ /* Static function prototypes */ static herr_t H5P_set_family_offset(H5P_genplist_t *plist, hsize_t offset); static herr_t H5P_get_family_offset(H5P_genplist_t *plist, hsize_t *offset); static herr_t H5P_set_multi_type(H5P_genplist_t *plist, H5FD_mem_t type); static herr_t H5P_get_multi_type(H5P_genplist_t *plist, H5FD_mem_t *type); /*------------------------------------------------------------------------- * Function: H5Pset_alignment * * Purpose: Sets the alignment properties of a file access property list * so that any file object >= THRESHOLD bytes will be aligned on * an address which is a multiple of ALIGNMENT. The addresses * are relative to the end of the user block; the alignment is * calculated by subtracting the user block size from the * absolute file address and then adjusting the address to be a * multiple of ALIGNMENT. * * Default values for THRESHOLD and ALIGNMENT are one, implying * no alignment. Generally the default values will result in * the best performance for single-process access to the file. * For MPI-IO and other parallel systems, choose an alignment * which is a multiple of the disk block size. * * Return: Non-negative on success/Negative on failure * * Programmer: Robb Matzke * Tuesday, June 9, 1998 * * Modifications: * * Raymond Lu * Tuesday, Oct 23, 2001 * Changed file access property list mechanism to the new * generic property list. *------------------------------------------------------------------------- */ herr_t H5Pset_alignment(hid_t fapl_id, hsize_t threshold, hsize_t alignment) { H5P_genplist_t *plist; /* Property list pointer */ herr_t ret_value=SUCCEED; /* return value */ FUNC_ENTER_API(H5Pset_alignment, FAIL); H5TRACE3("e","ihh",fapl_id,threshold,alignment); /* Check args */ if (alignment<1) HGOTO_ERROR (H5E_ARGS, H5E_BADVALUE, FAIL, "alignment must be positive"); /* Get the plist structure */ if(NULL == (plist = H5P_object_verify(fapl_id,H5P_FILE_ACCESS))) HGOTO_ERROR(H5E_ATOM, H5E_BADATOM, FAIL, "can't find object for ID"); /* Set values */ if(H5P_set(plist, H5F_ACS_ALIGN_THRHD_NAME, &threshold) < 0) HGOTO_ERROR(H5E_PLIST, H5E_CANTSET, FAIL, "can't set threshold"); if(H5P_set(plist, H5F_ACS_ALIGN_NAME, &alignment) < 0) HGOTO_ERROR(H5E_PLIST, H5E_CANTSET, FAIL, "can't set alignment"); done: FUNC_LEAVE_API(ret_value); } /*------------------------------------------------------------------------- * Function: H5Pget_alignment * * Purpose: Returns the current settings for alignment properties from a * file access property list. The THRESHOLD and/or ALIGNMENT * pointers may be null pointers. * * Return: Non-negative on success/Negative on failure * * Programmer: Robb Matzke * Tuesday, June 9, 1998 * * Modifications: * * Raymond Lu * Tuesday, Oct 23, 2001 * Changed the file access list design to the new generic * property list. * *------------------------------------------------------------------------- */ herr_t H5Pget_alignment(hid_t fapl_id, hsize_t *threshold/*out*/, hsize_t *alignment/*out*/) { H5P_genplist_t *plist; /* Property list pointer */ herr_t ret_value=SUCCEED; /* Return value */ FUNC_ENTER_API(H5Pget_alignment, FAIL); H5TRACE3("e","ixx",fapl_id,threshold,alignment); /* Get the plist structure */ if(NULL == (plist = H5P_object_verify(fapl_id,H5P_FILE_ACCESS))) HGOTO_ERROR(H5E_ATOM, H5E_BADATOM, FAIL, "can't find object for ID"); /* Get values */ if (threshold) if(H5P_get(plist, H5F_ACS_ALIGN_THRHD_NAME, threshold) < 0) HGOTO_ERROR(H5E_PLIST, H5E_CANTGET, FAIL, "can't get threshold"); if (alignment) if(H5P_get(plist, H5F_ACS_ALIGN_NAME, alignment) < 0) HGOTO_ERROR(H5E_PLIST, H5E_CANTGET, FAIL, "can't get alignment"); done: FUNC_LEAVE_API(ret_value); } /*------------------------------------------------------------------------- * Function: H5P_set_driver * * Purpose: Set the file driver (DRIVER_ID) for a file access or data * transfer property list (PLIST_ID) and supply an optional * struct containing the driver-specific properites * (DRIVER_INFO). The driver properties will be copied into the * property list and the reference count on the driver will be * incremented, allowing the caller to close the driver ID but * still use the property list. * * Return: Success: Non-negative * * Failure: Negative * * Programmer: Robb Matzke * Tuesday, August 3, 1999 * * Modifications: * * Raymond Lu * Tuesday, Oct 23, 2001 * Changed the file access list design to the new generic * property list. * *------------------------------------------------------------------------- */ herr_t H5P_set_driver(H5P_genplist_t *plist, hid_t new_driver_id, const void *new_driver_info) { hid_t driver_id; /* VFL driver ID */ void *driver_info; /* VFL driver info */ herr_t ret_value=SUCCEED; /* Return value */ FUNC_ENTER_NOAPI(H5P_set_driver, FAIL); if (NULL==H5I_object_verify(new_driver_id, H5I_VFL)) HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a file driver ID"); if( TRUE == H5P_isa_class(plist->plist_id, H5P_FILE_ACCESS) ) { /* Get the current driver information */ if(H5P_get(plist, H5F_ACS_FILE_DRV_ID_NAME, &driver_id) < 0) HGOTO_ERROR(H5E_PLIST, H5E_CANTGET, FAIL, "can't get driver ID"); if(H5P_get(plist, H5F_ACS_FILE_DRV_INFO_NAME, &driver_info) < 0) HGOTO_ERROR(H5E_PLIST, H5E_CANTGET,FAIL,"can't get driver info"); /* Close the driver for the property list */ if(H5FD_fapl_close(driver_id, driver_info)<0) HGOTO_ERROR(H5E_PLIST, H5E_CANTSET, FAIL, "can't reset driver") /* Set the driver for the property list */ if(H5FD_fapl_open(plist, new_driver_id, new_driver_info)<0) HGOTO_ERROR(H5E_PLIST, H5E_CANTSET, FAIL, "can't set driver") } else if( TRUE == H5P_isa_class(plist->plist_id, H5P_DATASET_XFER) ) { /* Get the current driver information */ if(H5P_get(plist, H5D_XFER_VFL_ID_NAME, &driver_id)<0) HGOTO_ERROR (H5E_PLIST, H5E_CANTGET, FAIL, "can't retrieve VFL driver ID"); if(H5P_get(plist, H5D_XFER_VFL_INFO_NAME, &driver_info)<0) HGOTO_ERROR (H5E_PLIST, H5E_CANTGET, FAIL, "can't retrieve VFL driver info"); /* Close the driver for the property list */ if(H5FD_dxpl_close(driver_id, driver_info)<0) HGOTO_ERROR(H5E_PLIST, H5E_CANTSET, FAIL, "can't reset driver") /* Set the driver for the property list */ if(H5FD_dxpl_open(plist, new_driver_id, new_driver_info)<0) HGOTO_ERROR(H5E_PLIST, H5E_CANTSET, FAIL, "can't set driver") } else { HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a file access or data transfer property list"); } done: FUNC_LEAVE_NOAPI(ret_value); } /* end H5P_set_driver() */ /*------------------------------------------------------------------------- * Function: H5Pset_driver * * Purpose: Set the file driver (DRIVER_ID) for a file access or data * transfer property list (PLIST_ID) and supply an optional * struct containing the driver-specific properites * (DRIVER_INFO). The driver properties will be copied into the * property list and the reference count on the driver will be * incremented, allowing the caller to close the driver ID but * still use the property list. * * Return: Success: Non-negative * * Failure: Negative * * Programmer: Robb Matzke * Tuesday, August 3, 1999 * * Modifications: * * Raymond Lu * Tuesday, Oct 23, 2001 * Changed the file access list design to the new generic * property list. * *------------------------------------------------------------------------- */ herr_t H5Pset_driver(hid_t plist_id, hid_t new_driver_id, const void *new_driver_info) { H5P_genplist_t *plist; /* Property list pointer */ herr_t ret_value=SUCCEED; /* Return value */ FUNC_ENTER_API(H5Pset_driver, FAIL); H5TRACE3("e","iix",plist_id,new_driver_id,new_driver_info); /* Check arguments */ if(NULL == (plist = H5I_object_verify(plist_id, H5I_GENPROP_LST))) HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a property list"); if (NULL==H5I_object_verify(new_driver_id, H5I_VFL)) HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a file driver ID"); /* Set the driver */ if(H5P_set_driver(plist,new_driver_id,new_driver_info)<0) HGOTO_ERROR(H5E_PLIST, H5E_CANTSET, FAIL, "can't set driver info"); done: FUNC_LEAVE_API(ret_value); } /* end H5Pset_driver() */ /*------------------------------------------------------------------------- * Function: H5P_get_driver * * Purpose: Return the ID of the low-level file driver. PLIST_ID should * be a file access property list or data transfer propert list. * * Return: Success: A low-level driver ID which is the same ID * used when the driver was set for the property * list. The driver ID is only valid as long as * the file driver remains registered. * * Failure: Negative * * Programmer: Robb Matzke * Thursday, February 26, 1998 * * Modifications: * Robb Matzke, 1999-08-03 * Rewritten to use the virtual file layer. * * Robb Matzke, 1999-08-05 * If the driver ID is H5FD_VFD_DEFAULT then substitute the * current value of H5FD_SEC2. * * Quincey Koziol 2000-11-28 * Added internal function.. * * Raymond Lu, 2001-10-23 * Changed the file access list design to the new generic * property list. * *------------------------------------------------------------------------- */ hid_t H5P_get_driver(H5P_genplist_t *plist) { hid_t ret_value=FAIL; /* Return value */ FUNC_ENTER_NOAPI(H5P_get_driver, FAIL); /* Get the current driver ID */ if(TRUE == H5P_isa_class(plist->plist_id, H5P_FILE_ACCESS) ) { if(H5P_get(plist, H5F_ACS_FILE_DRV_ID_NAME, &ret_value) < 0) HGOTO_ERROR(H5E_PLIST, H5E_CANTGET, FAIL, "can't get driver ID"); } else if( TRUE == H5P_isa_class(plist->plist_id, H5P_DATASET_XFER) ) { if(H5P_get(plist, H5D_XFER_VFL_ID_NAME, &ret_value)<0) HGOTO_ERROR (H5E_PLIST, H5E_CANTGET, FAIL, "Can't retrieve VFL driver ID"); } else { HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a file access or data transfer property list"); } if (H5FD_VFD_DEFAULT==ret_value) ret_value = H5FD_SEC2; done: FUNC_LEAVE_NOAPI(ret_value); } /*------------------------------------------------------------------------- * Function: H5Pget_driver * * Purpose: Return the ID of the low-level file driver. PLIST_ID should * be a file access property list or data transfer propert list. * * Return: Success: A low-level driver ID which is the same ID * used when the driver was set for the property * list. The driver ID is only valid as long as * the file driver remains registered. * * Failure: Negative * * Programmer: Robb Matzke * Thursday, February 26, 1998 * * Modifications: * Robb Matzke, 1999-08-03 * Rewritten to use the virtual file layer. * * Robb Matzke, 1999-08-05 * If the driver ID is H5FD_VFD_DEFAULT then substitute the current value of * H5FD_SEC2. * * Quincey Koziol 2000-11-28 * Added internal function.. *------------------------------------------------------------------------- */ hid_t H5Pget_driver(hid_t plist_id) { H5P_genplist_t *plist; /* Property list pointer */ hid_t ret_value; /* Return value */ FUNC_ENTER_API(H5Pget_driver, FAIL); H5TRACE1("i","i",plist_id); if(NULL == (plist = H5I_object_verify(plist_id, H5I_GENPROP_LST))) HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a property list"); ret_value = H5P_get_driver(plist); done: FUNC_LEAVE_API(ret_value); } /*------------------------------------------------------------------------- * Function: H5P_get_driver_info * * Purpose: Returns a pointer directly to the file driver-specific * information of a file access or data transfer property list. * * Return: Success: Ptr to *uncopied* driver specific data * structure if any. * * Failure: NULL. Null is also returned if the driver has * not registered any driver-specific properties * although no error is pushed on the stack in * this case. * * Programmer: Robb Matzke * Wednesday, August 4, 1999 * * Modifications: * * Raymond Lu * Tuesday, Oct 23, 2001 * Changed the file access list design to the new generic * property list. * *------------------------------------------------------------------------- */ void * H5P_get_driver_info(H5P_genplist_t *plist) { void *ret_value=NULL; FUNC_ENTER_NOAPI(H5P_get_driver_info, NULL); /* Get the current driver info */ if( TRUE == H5P_isa_class(plist->plist_id, H5P_FILE_ACCESS) ) { if(H5P_get(plist, H5F_ACS_FILE_DRV_INFO_NAME, &ret_value) < 0) HGOTO_ERROR(H5E_PLIST, H5E_CANTGET,NULL,"can't get driver info"); } else if( TRUE == H5P_isa_class(plist->plist_id, H5P_DATASET_XFER) ) { if(H5P_get(plist, H5D_XFER_VFL_INFO_NAME, &ret_value)<0) HGOTO_ERROR (H5E_PLIST, H5E_CANTGET, NULL, "Can't retrieve VFL driver ID"); } else { HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, NULL, "not a file access or data transfer property list"); } done: FUNC_LEAVE_NOAPI(ret_value); } /* end H5P_get_driver_info() */ /*------------------------------------------------------------------------- * Function: H5Pget_driver_info * * Purpose: Returns a pointer directly to the file driver-specific * information of a file access or data transfer property list. * * Return: Success: Ptr to *uncopied* driver specific data * structure if any. * * Failure: NULL. Null is also returned if the driver has * not registered any driver-specific properties * although no error is pushed on the stack in * this case. * * Programmer: Robb Matzke * Wednesday, August 4, 1999 * * Modifications: * * Raymond Lu * Tuesday, Oct 23, 2001 * Changed the file access list design to the new generic * property list. * *------------------------------------------------------------------------- */ void * H5Pget_driver_info(hid_t plist_id) { H5P_genplist_t *plist; /* Property list pointer */ void *ret_value; /* Return value */ FUNC_ENTER_API(H5Pget_driver_info, NULL); if(NULL == (plist = H5I_object_verify(plist_id, H5I_GENPROP_LST))) HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, NULL, "not a property list"); if((ret_value=H5P_get_driver_info(plist))==NULL) HGOTO_ERROR(H5E_PLIST,H5E_CANTGET,NULL,"can't get driver info"); done: FUNC_LEAVE_API(ret_value); } /* end H5Pget_driver_info() */ /*------------------------------------------------------------------------- * Function: H5Pset_family_offset * * Purpose: Set offset for family driver. This file access property * list will be passed to H5Fget_vfd_handle or H5FDget_vfd_handle * to retrieve VFD file handle. * * Return: Success: Non-negative value. * * Failure: Negative value. * * Programmer: Raymond Lu * Sep 17, 2002 * * Modifications: * *------------------------------------------------------------------------- */ herr_t H5Pset_family_offset(hid_t fapl_id, hsize_t offset) { H5P_genplist_t *plist; /* Property list pointer */ herr_t ret_value=SUCCEED; /* return value */ FUNC_ENTER_API(H5Pset_family_offset, FAIL); H5TRACE2("e","ih",fapl_id,offset); /* Get the plist structure */ if(H5P_DEFAULT == fapl_id) HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "can't modify default property list"); if(NULL == (plist = H5P_object_verify(fapl_id,H5P_FILE_ACCESS))) HGOTO_ERROR(H5E_ATOM, H5E_BADATOM, FAIL, "can't find object for ID"); /* Set values */ if((ret_value=H5P_set_family_offset(plist, offset)) < 0) HGOTO_ERROR(H5E_PLIST, H5E_CANTSET, FAIL, "can't set family offset"); done: FUNC_LEAVE_API(ret_value); } /*------------------------------------------------------------------------- * Function: H5P_set_family_offset * * Purpose: Set offset for family driver. Private function for * H5Pset_family_offset * * Return: Success: Non-negative value. * * Failure: Negative value. * * Programmer: Raymond Lu * Sep 17, 2002 * * Modifications: * *------------------------------------------------------------------------- */ static herr_t H5P_set_family_offset(H5P_genplist_t *plist, hsize_t offset) { herr_t ret_value=SUCCEED; FUNC_ENTER_NOAPI(H5P_set_family_offset, FAIL); if( TRUE == H5P_isa_class(plist->plist_id, H5P_FILE_ACCESS) ) { if(H5P_set(plist, H5F_ACS_FAMILY_OFFSET_NAME, &offset) < 0) HGOTO_ERROR(H5E_PLIST, H5E_CANTSET,FAIL,"can't set offset for family file"); } else { HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a file access or data transfer property list"); } done: FUNC_LEAVE_NOAPI(ret_value); } /*------------------------------------------------------------------------- * Function: H5Pget_family_offset * * Purpose: Get offset for family driver. This file access property * list will be passed to H5Fget_vfd_handle or H5FDget_vfd_handle * to retrieve VFD file handle. * * Return: Success: Non-negative value. * * Failure: Negative value. * * Programmer: Raymond Lu * Sep 17, 2002 * * Modifications: * *------------------------------------------------------------------------- */ herr_t H5Pget_family_offset(hid_t fapl_id, hsize_t *offset) { H5P_genplist_t *plist; /* Property list pointer */ herr_t ret_value=SUCCEED; /* return value */ FUNC_ENTER_API(H5Pget_family_offset, FAIL); H5TRACE2("e","i*h",fapl_id,offset); /* Get the plist structure */ if(H5P_DEFAULT == fapl_id) HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "can't modify default property list"); if(NULL == (plist = H5P_object_verify(fapl_id,H5P_FILE_ACCESS))) HGOTO_ERROR(H5E_ATOM, H5E_BADATOM, FAIL, "can't find object for ID"); /* Set values */ if((ret_value=H5P_get_family_offset(plist, offset)) < 0) HGOTO_ERROR(H5E_PLIST, H5E_CANTSET, FAIL, "can't get family offset"); done: FUNC_LEAVE_API(ret_value); } /*------------------------------------------------------------------------- * Function: H5P_get_family_offset * * Purpose: Get offset for family driver. Private function for * H5Pget_family_offset * * Return: Success: Non-negative value. * * Failure: Negative value. * * Programmer: Raymond Lu * Sep 17, 2002 * * Modifications: * *------------------------------------------------------------------------- */ static herr_t H5P_get_family_offset(H5P_genplist_t *plist, hsize_t *offset) { herr_t ret_value=SUCCEED; FUNC_ENTER_NOAPI(H5P_get_family_offset, FAIL); if( TRUE == H5P_isa_class(plist->plist_id, H5P_FILE_ACCESS) ) { if(H5P_get(plist, H5F_ACS_FAMILY_OFFSET_NAME, offset) < 0) HGOTO_ERROR(H5E_PLIST, H5E_CANTSET,FAIL,"can't set offset for family file"); } else { HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a file access or data transfer property list"); } done: FUNC_LEAVE_NOAPI(ret_value); } /*------------------------------------------------------------------------- * Function: H5Pset_multi_type * * Purpose: Set data type for multi driver. This file access property * list will be passed to H5Fget_vfd_handle or H5FDget_vfd_handle * to retrieve VFD file handle. * * Return: Success: Non-negative value. * * Failure: Negative value. * * Programmer: Raymond Lu * Sep 17, 2002 * * Modifications: * *------------------------------------------------------------------------- */ herr_t H5Pset_multi_type(hid_t fapl_id, H5FD_mem_t type) { H5P_genplist_t *plist; /* Property list pointer */ herr_t ret_value=SUCCEED; /* return value */ FUNC_ENTER_API(H5Pset_multi_type, FAIL); H5TRACE2("e","iMt",fapl_id,type); /* Get the plist structure */ if(H5P_DEFAULT == fapl_id) HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "can't modify default property list"); if(NULL == (plist = H5P_object_verify(fapl_id,H5P_FILE_ACCESS))) HGOTO_ERROR(H5E_ATOM, H5E_BADATOM, FAIL, "can't find object for ID"); /* Set values */ if((ret_value=H5P_set_multi_type(plist, type)) < 0) HGOTO_ERROR(H5E_PLIST, H5E_CANTSET, FAIL, "can't set data type for multi driver"); done: FUNC_LEAVE_API(ret_value); } /*------------------------------------------------------------------------- * Function: H5P_set_multi_type * * Purpose: Set data type for multi file driver. Private function for * H5Pset_multi_type. * * Return: Success: Non-negative value. * * Failure: Negative value. * * Programmer: Raymond Lu * Sep 17, 2002 * * Modifications: * *------------------------------------------------------------------------- */ static herr_t H5P_set_multi_type(H5P_genplist_t *plist, H5FD_mem_t type) { herr_t ret_value=SUCCEED; FUNC_ENTER_NOAPI(H5P_set_multi_type, FAIL); if( TRUE == H5P_isa_class(plist->plist_id, H5P_FILE_ACCESS) ) { if(H5P_set(plist, H5F_ACS_MULTI_TYPE_NAME, &type) < 0) HGOTO_ERROR(H5E_PLIST, H5E_CANTSET,FAIL,"can't set type for multi driver"); } else { HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a file access or data transfer property list"); } done: FUNC_LEAVE_NOAPI(ret_value); } /*------------------------------------------------------------------------- * Function: H5Pget_multi_type * * Purpose: Get data type for multi driver. This file access property * list will be passed to H5Fget_vfd_handle or H5FDget_vfd_handle * to retrieve VFD file handle. * * Return: Success: Non-negative value. * * Failure: Negative value. * * Programmer: Raymond Lu * Sep 17, 2002 * * Modifications: * *------------------------------------------------------------------------- */ herr_t H5Pget_multi_type(hid_t fapl_id, H5FD_mem_t *type) { H5P_genplist_t *plist; /* Property list pointer */ herr_t ret_value=SUCCEED; /* return value */ FUNC_ENTER_API(H5Pget_multi_type, FAIL); H5TRACE2("e","i*Mt",fapl_id,type); /* Get the plist structure */ if(H5P_DEFAULT == fapl_id) HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "can't modify default property list"); if(NULL == (plist = H5P_object_verify(fapl_id,H5P_FILE_ACCESS))) HGOTO_ERROR(H5E_ATOM, H5E_BADATOM, FAIL, "can't find object for ID"); /* Set values */ if((ret_value=H5P_get_multi_type(plist, type)) < 0) HGOTO_ERROR(H5E_PLIST, H5E_CANTSET, FAIL, "can't get data type for multi driver"); done: FUNC_LEAVE_API(ret_value); } /*------------------------------------------------------------------------- * Function: H5P_get_multi_type * * Purpose: Get data type for multi file driver. Private function for * H5Pget_multi_type. * * Return: Success: Non-negative value. * * Failure: Negative value. * * Programmer: Raymond Lu * Sep 17, 2002 * * Modifications: * *------------------------------------------------------------------------- */ static herr_t H5P_get_multi_type(H5P_genplist_t *plist, H5FD_mem_t *type) { herr_t ret_value=SUCCEED; FUNC_ENTER_NOAPI(H5P_get_multi_type, FAIL); if( TRUE == H5P_isa_class(plist->plist_id, H5P_FILE_ACCESS) ) { if(H5P_get(plist, H5F_ACS_MULTI_TYPE_NAME, type) < 0) HGOTO_ERROR(H5E_PLIST, H5E_CANTSET,FAIL,"can't get type for multi driver"); } else { HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a file access property list"); } done: FUNC_LEAVE_NOAPI(ret_value); } #ifdef H5_WANT_H5_V1_4_COMPAT /*------------------------------------------------------------------------- * Function: H5Pset_cache * * Purpose: Set the number of objects in the meta data cache and the * maximum number of chunks and bytes in the raw data chunk * cache. * * The RDCC_W0 value should be between 0 and 1 inclusive and * indicates how much chunks that have been fully read or fully * written are favored for preemption. A value of zero means * fully read or written chunks are treated no differently than * other chunks (the preemption is strictly LRU) while a value * of one means fully read chunks are always preempted before * other chunks. * * Return: Non-negative on success/Negative on failure * * Programmer: Robb Matzke * Tuesday, May 19, 1998 * * Modifications: * * Raymond Lu * Tuesday, Oct 23, 2001 * Changed the file access list to the new generic property list. * *------------------------------------------------------------------------- */ herr_t H5Pset_cache(hid_t plist_id, int mdc_nelmts, int _rdcc_nelmts, size_t rdcc_nbytes, double rdcc_w0) { H5P_genplist_t *plist; /* Property list pointer */ size_t rdcc_nelmts=(size_t)_rdcc_nelmts; /* Work around variable changing size */ herr_t ret_value=SUCCEED; /* return value */ FUNC_ENTER_API(H5Pset_cache, FAIL); H5TRACE5("e","iIsIszd",plist_id,mdc_nelmts,_rdcc_nelmts,rdcc_nbytes, rdcc_w0); /* Check arguments */ if (mdc_nelmts<0) HGOTO_ERROR (H5E_ARGS, H5E_BADVALUE, FAIL, "meta data cache size must be non-negative"); if (rdcc_w0<0.0 || rdcc_w0>1.0) HGOTO_ERROR (H5E_ARGS, H5E_BADVALUE, FAIL, "raw data cache w0 value must be between 0.0 and 1.0 inclusive"); /* Get the plist structure */ if(NULL == (plist = H5P_object_verify(plist_id,H5P_FILE_ACCESS))) HGOTO_ERROR(H5E_ATOM, H5E_BADATOM, FAIL, "can't find object for ID"); /* Set sizes */ if(H5P_set(plist, H5F_ACS_META_CACHE_SIZE_NAME, &mdc_nelmts) < 0) HGOTO_ERROR(H5E_PLIST, H5E_CANTSET,FAIL, "can't set meta data cache size"); if(H5P_set(plist, H5F_ACS_DATA_CACHE_ELMT_SIZE_NAME, &rdcc_nelmts) < 0) HGOTO_ERROR(H5E_PLIST, H5E_CANTSET,FAIL, "can't set data cache element size"); if(H5P_set(plist, H5F_ACS_DATA_CACHE_BYTE_SIZE_NAME, &rdcc_nbytes) < 0) HGOTO_ERROR(H5E_PLIST, H5E_CANTSET,FAIL, "can't set data cache byte size"); if(H5P_set(plist, H5F_ACS_PREEMPT_READ_CHUNKS_NAME, &rdcc_w0) < 0) HGOTO_ERROR(H5E_PLIST, H5E_CANTSET,FAIL, "can't set preempt read chunks"); done: FUNC_LEAVE_API(ret_value); } /*------------------------------------------------------------------------- * Function: H5Pget_cache * * Purpose: Retrieves the maximum possible number of elements in the meta * data cache and the maximum possible number of elements and * bytes and the RDCC_W0 value in the raw data chunk cache. Any * (or all) arguments may be null pointers in which case the * corresponding datum is not returned. * * Return: Non-negative on success/Negative on failure * * Programmer: Robb Matzke * Tuesday, May 19, 1998 * * Modifications: * * Raymond Lu * Tuesday, Oct 23, 2001 * Changed the file access list to the new generic property * list. * *------------------------------------------------------------------------- */ herr_t H5Pget_cache(hid_t plist_id, int *mdc_nelmts, int *_rdcc_nelmts, size_t *rdcc_nbytes, double *rdcc_w0) { H5P_genplist_t *plist; /* Property list pointer */ size_t rdcc_nelmts; /* Work around variable changing size */ herr_t ret_value=SUCCEED; /* return value */ FUNC_ENTER_API(H5Pget_cache, FAIL); H5TRACE5("e","i*Is*Is*z*d",plist_id,mdc_nelmts,_rdcc_nelmts,rdcc_nbytes, rdcc_w0); /* Get the plist structure */ if(NULL == (plist = H5P_object_verify(plist_id,H5P_FILE_ACCESS))) HGOTO_ERROR(H5E_ATOM, H5E_BADATOM, FAIL, "can't find object for ID"); /* Get sizes */ if (mdc_nelmts) if(H5P_get(plist, H5F_ACS_META_CACHE_SIZE_NAME, mdc_nelmts) < 0) HGOTO_ERROR(H5E_PLIST, H5E_CANTGET,FAIL, "can't get meta data cache size"); if (_rdcc_nelmts) { if(H5P_get(plist, H5F_ACS_DATA_CACHE_ELMT_SIZE_NAME, &rdcc_nelmts) < 0) HGOTO_ERROR(H5E_PLIST, H5E_CANTGET,FAIL, "can't get data cache element size"); *_rdcc_nelmts=rdcc_nelmts; } /* end if */ if (rdcc_nbytes) if(H5P_get(plist, H5F_ACS_DATA_CACHE_BYTE_SIZE_NAME, rdcc_nbytes) < 0) HGOTO_ERROR(H5E_PLIST, H5E_CANTGET,FAIL, "can't get data cache byte size"); if (rdcc_w0) if(H5P_get(plist, H5F_ACS_PREEMPT_READ_CHUNKS_NAME, rdcc_w0) < 0) HGOTO_ERROR(H5E_PLIST, H5E_CANTGET,FAIL, "can't get preempt read chunks"); done: FUNC_LEAVE_API(ret_value); } #else /* H5_WANT_H5_V1_4_COMPAT */ /*------------------------------------------------------------------------- * Function: H5Pset_cache * * Purpose: Set the number of objects in the meta data cache and the * maximum number of chunks and bytes in the raw data chunk * cache. * * The RDCC_W0 value should be between 0 and 1 inclusive and * indicates how much chunks that have been fully read or fully * written are favored for preemption. A value of zero means * fully read or written chunks are treated no differently than * other chunks (the preemption is strictly LRU) while a value * of one means fully read chunks are always preempted before * other chunks. * * Return: Non-negative on success/Negative on failure * * Programmer: Robb Matzke * Tuesday, May 19, 1998 * * Modifications: * * Raymond Lu * Tuesday, Oct 23, 2001 * Changed the file access list to the new generic property list. * *------------------------------------------------------------------------- */ herr_t H5Pset_cache(hid_t plist_id, int mdc_nelmts, size_t rdcc_nelmts, size_t rdcc_nbytes, double rdcc_w0) { H5P_genplist_t *plist; /* Property list pointer */ herr_t ret_value=SUCCEED; /* return value */ FUNC_ENTER_API(H5Pset_cache, FAIL); H5TRACE5("e","iIszzd",plist_id,mdc_nelmts,rdcc_nelmts,rdcc_nbytes,rdcc_w0); /* Check arguments */ if (mdc_nelmts<0) HGOTO_ERROR (H5E_ARGS, H5E_BADVALUE, FAIL, "meta data cache size must be non-negative"); if (rdcc_w0<0.0 || rdcc_w0>1.0) HGOTO_ERROR (H5E_ARGS, H5E_BADVALUE, FAIL, "raw data cache w0 value must be between 0.0 and 1.0 inclusive"); /* Get the plist structure */ if(NULL == (plist = H5P_object_verify(plist_id,H5P_FILE_ACCESS))) HGOTO_ERROR(H5E_ATOM, H5E_BADATOM, FAIL, "can't find object for ID"); /* Set sizes */ if(H5P_set(plist, H5F_ACS_META_CACHE_SIZE_NAME, &mdc_nelmts) < 0) HGOTO_ERROR(H5E_PLIST, H5E_CANTSET,FAIL, "can't set meta data cache size"); if(H5P_set(plist, H5F_ACS_DATA_CACHE_ELMT_SIZE_NAME, &rdcc_nelmts) < 0) HGOTO_ERROR(H5E_PLIST, H5E_CANTSET,FAIL, "can't set data cache element size"); if(H5P_set(plist, H5F_ACS_DATA_CACHE_BYTE_SIZE_NAME, &rdcc_nbytes) < 0) HGOTO_ERROR(H5E_PLIST, H5E_CANTSET,FAIL, "can't set data cache byte size"); if(H5P_set(plist, H5F_ACS_PREEMPT_READ_CHUNKS_NAME, &rdcc_w0) < 0) HGOTO_ERROR(H5E_PLIST, H5E_CANTSET,FAIL, "can't set preempt read chunks"); done: FUNC_LEAVE_API(ret_value); } /*------------------------------------------------------------------------- * Function: H5Pget_cache * * Purpose: Retrieves the maximum possible number of elements in the meta * data cache and the maximum possible number of elements and * bytes and the RDCC_W0 value in the raw data chunk cache. Any * (or all) arguments may be null pointers in which case the * corresponding datum is not returned. * * Return: Non-negative on success/Negative on failure * * Programmer: Robb Matzke * Tuesday, May 19, 1998 * * Modifications: * * Raymond Lu * Tuesday, Oct 23, 2001 * Changed the file access list to the new generic property * list. * *------------------------------------------------------------------------- */ herr_t H5Pget_cache(hid_t plist_id, int *mdc_nelmts, size_t *rdcc_nelmts, size_t *rdcc_nbytes, double *rdcc_w0) { H5P_genplist_t *plist; /* Property list pointer */ herr_t ret_value=SUCCEED; /* return value */ FUNC_ENTER_API(H5Pget_cache, FAIL); H5TRACE5("e","i*Is*z*z*d",plist_id,mdc_nelmts,rdcc_nelmts,rdcc_nbytes, rdcc_w0); /* Get the plist structure */ if(NULL == (plist = H5P_object_verify(plist_id,H5P_FILE_ACCESS))) HGOTO_ERROR(H5E_ATOM, H5E_BADATOM, FAIL, "can't find object for ID"); /* Get sizes */ if (mdc_nelmts) if(H5P_get(plist, H5F_ACS_META_CACHE_SIZE_NAME, mdc_nelmts) < 0) HGOTO_ERROR(H5E_PLIST, H5E_CANTGET,FAIL, "can't get meta data cache size"); if (rdcc_nelmts) if(H5P_get(plist, H5F_ACS_DATA_CACHE_ELMT_SIZE_NAME, rdcc_nelmts) < 0) HGOTO_ERROR(H5E_PLIST, H5E_CANTGET,FAIL, "can't get data cache element size"); if (rdcc_nbytes) if(H5P_get(plist, H5F_ACS_DATA_CACHE_BYTE_SIZE_NAME, rdcc_nbytes) < 0) HGOTO_ERROR(H5E_PLIST, H5E_CANTGET,FAIL, "can't get data cache byte size"); if (rdcc_w0) if(H5P_get(plist, H5F_ACS_PREEMPT_READ_CHUNKS_NAME, rdcc_w0) < 0) HGOTO_ERROR(H5E_PLIST, H5E_CANTGET,FAIL, "can't get preempt read chunks"); done: FUNC_LEAVE_API(ret_value); } #endif /* H5_WANT_H5_V1_4_COMPAT */ /*------------------------------------------------------------------------- * Function: H5Pset_gc_references * * Purpose: Sets the flag for garbage collecting references for the file. * Dataset region references (and other reference types * probably) use space in the file heap. If garbage collection * is on and the user passes in an uninitialized value in a * reference structure, the heap might get corrupted. When * garbage collection is off however and the user re-uses a * reference, the previous heap block will be orphaned and not * returned to the free heap space. When garbage collection is * on, the user must initialize the reference structures to 0 or * risk heap corruption. * * Default value for garbage collecting references is off, just * to be on the safe side. * * Return: Non-negative on success/Negative on failure * * Programmer: Quincey Koziol * June, 1999 * * Modifications: * * Raymond Lu * Tuesday, Oct 23, 2001 * Changed the file access list to the new generic property * list. * *------------------------------------------------------------------------- */ herr_t H5Pset_gc_references(hid_t plist_id, unsigned gc_ref) { H5P_genplist_t *plist; /* Property list pointer */ herr_t ret_value=SUCCEED; /* return value */ FUNC_ENTER_API(H5Pset_gc_references, FAIL); H5TRACE2("e","iIu",plist_id,gc_ref); /* Get the plist structure */ if(NULL == (plist = H5P_object_verify(plist_id,H5P_FILE_ACCESS))) HGOTO_ERROR(H5E_ATOM, H5E_BADATOM, FAIL, "can't find object for ID"); /* Set values */ if(H5P_set(plist, H5F_ACS_GARBG_COLCT_REF_NAME, &gc_ref) < 0) HGOTO_ERROR(H5E_PLIST, H5E_CANTSET, FAIL, "can't set garbage collect reference"); done: FUNC_LEAVE_API(ret_value); } /*------------------------------------------------------------------------- * Function: H5Pget_gc_references * * Purpose: Returns the current setting for the garbage collection * references property from a file access property list. * * Return: Non-negative on success/Negative on failure * * Programmer: Quincey Koziol * June, 1999 * * Modifications: * * Raymond Lu * Tuesday, Oct 23, 2001 * Changed the file access list to the new generic property * list. * *------------------------------------------------------------------------- */ herr_t H5Pget_gc_references(hid_t plist_id, unsigned *gc_ref/*out*/) { H5P_genplist_t *plist; /* Property list pointer */ herr_t ret_value=SUCCEED; /* return value */ FUNC_ENTER_API(H5Pget_gc_references, FAIL); H5TRACE2("e","ix",plist_id,gc_ref); /* Get the plist structure */ if(NULL == (plist = H5P_object_verify(plist_id,H5P_FILE_ACCESS))) HGOTO_ERROR(H5E_ATOM, H5E_BADATOM, FAIL, "can't find object for ID"); /* Get values */ if (gc_ref) if(H5P_get(plist, H5F_ACS_GARBG_COLCT_REF_NAME, gc_ref) < 0) HGOTO_ERROR(H5E_PLIST, H5E_CANTGET, FAIL, "can't get garbage collect reference"); done: FUNC_LEAVE_API(ret_value); } /*------------------------------------------------------------------------- * Function: H5Pset_fclose_degree * * Purpose: Sets the degree for the file close behavior. * * Return: Non-negative on success/Negative on failure * * Programmer: Raymond Lu * November, 2001 * * Modifications: * *------------------------------------------------------------------------- */ herr_t H5Pset_fclose_degree(hid_t plist_id, H5F_close_degree_t degree) { H5P_genplist_t *plist; /* Property list pointer */ herr_t ret_value=SUCCEED; /* return value */ FUNC_ENTER_API(H5Pset_fclose_degree, FAIL); H5TRACE2("e","iFd",plist_id,degree); /* Get the plist structure */ if(NULL == (plist = H5P_object_verify(plist_id,H5P_FILE_ACCESS))) HGOTO_ERROR(H5E_ATOM, H5E_BADATOM, FAIL, "can't find object for ID"); /* Set values */ if(H5P_set(plist, H5F_CLOSE_DEGREE_NAME, °ree) < 0) HGOTO_ERROR(H5E_PLIST, H5E_CANTSET, FAIL, "can't set file close degree"); done: FUNC_LEAVE_API(ret_value); } /*------------------------------------------------------------------------- * Function: H5Pget_fclose_degree * * Purpose: Returns the degree for the file close behavior. * * Return: Non-negative on success/Negative on failure * * Programmer: Raymond Lu * November, 2001 * * Modifications: * *------------------------------------------------------------------------- */ herr_t H5Pget_fclose_degree(hid_t plist_id, H5F_close_degree_t *degree) { H5P_genplist_t *plist; /* Property list pointer */ herr_t ret_value=SUCCEED; /* return value */ FUNC_ENTER_API(H5Pget_fclose_degree, FAIL); /* Get the plist structure */ if(NULL == (plist = H5P_object_verify(plist_id,H5P_FILE_ACCESS))) HGOTO_ERROR(H5E_ATOM, H5E_BADATOM, FAIL, "can't find object for ID"); if( degree && (H5P_get(plist, H5F_CLOSE_DEGREE_NAME, degree) < 0) ) HGOTO_ERROR(H5E_PLIST, H5E_CANTGET, FAIL, "can't get file close degree"); done: FUNC_LEAVE_API(ret_value); } /*------------------------------------------------------------------------- * Function: H5Pset_meta_block_size * * Purpose: Sets the minimum size of metadata block allocations when * the H5FD_FEAT_AGGREGATE_METADATA is set by a VFL driver. * Each "raw" metadata block is allocated to be this size and then * specific pieces of metadata (object headers, local heaps, B-trees, etc) * are sub-allocated from this block. * * The default value is set to 2048 (bytes), indicating that metadata * will be attempted to be bunched together in (at least) 2K blocks in * the file. Setting the value to 0 with this API function will * turn off the metadata aggregation, even if the VFL driver attempts to * use that strategy. * * Return: Non-negative on success/Negative on failure * * Programmer: Quincey Koziol * Friday, August 25, 2000 * * Modifications: * * Raymond Lu * Tuesday, Oct 23, 2001 * Changed the file access list to the new generic property * list. * *------------------------------------------------------------------------- */ herr_t H5Pset_meta_block_size(hid_t plist_id, hsize_t size) { H5P_genplist_t *plist; /* Property list pointer */ herr_t ret_value=SUCCEED; /* return value */ FUNC_ENTER_API(H5Pset_meta_block_size, FAIL); H5TRACE2("e","ih",plist_id,size); /* Get the plist structure */ if(NULL == (plist = H5P_object_verify(plist_id,H5P_FILE_ACCESS))) HGOTO_ERROR(H5E_ATOM, H5E_BADATOM, FAIL, "can't find object for ID"); /* Set values */ if(H5P_set(plist, H5F_ACS_META_BLOCK_SIZE_NAME, &size) < 0) HGOTO_ERROR(H5E_PLIST, H5E_CANTSET, FAIL, "can't set meta data block size"); done: FUNC_LEAVE_API(ret_value); } /*------------------------------------------------------------------------- * Function: H5Pget_meta_block_size * * Purpose: Returns the current settings for the metadata block allocation * property from a file access property list. * * Return: Non-negative on success/Negative on failure * * Programmer: Quincey Koziol * Friday, August 29, 2000 * * Modifications: * * Raymond Lu * Tuesday, Oct 23, 2001 * Changed the file access list to the new generic property * list. * *------------------------------------------------------------------------- */ herr_t H5Pget_meta_block_size(hid_t plist_id, hsize_t *size/*out*/) { H5P_genplist_t *plist; /* Property list pointer */ herr_t ret_value=SUCCEED; /* return value */ FUNC_ENTER_API(H5Pget_meta_block_size, FAIL); H5TRACE2("e","ix",plist_id,size); /* Get the plist structure */ if(NULL == (plist = H5P_object_verify(plist_id,H5P_FILE_ACCESS))) HGOTO_ERROR(H5E_ATOM, H5E_BADATOM, FAIL, "can't find object for ID"); /* Get values */ if (size) { if(H5P_get(plist, H5F_ACS_META_BLOCK_SIZE_NAME, size) < 0) HGOTO_ERROR(H5E_PLIST, H5E_CANTGET, FAIL, "can't get meta data block size"); } /* end if */ done: FUNC_LEAVE_API(ret_value); } #ifdef H5_WANT_H5_V1_4_COMPAT /*------------------------------------------------------------------------- * Function: H5Pset_sieve_buf_size * * Purpose: Sets the maximum size of the data seive buffer used for file * drivers which are capable of using data sieving. The data sieve * buffer is used when performing I/O on datasets in the file. Using a * buffer which is large anough to hold several pieces of the dataset * being read in for hyperslab selections boosts performance by quite a * bit. * * The default value is set to 64KB, indicating that file I/O for raw data * reads and writes will occur in at least 64KB blocks. * Setting the value to 0 with this API function will turn off the * data sieving, even if the VFL driver attempts to use that strategy. * * Return: Non-negative on success/Negative on failure * * Programmer: Quincey Koziol * Thursday, September 21, 2000 * * Modifications: * * Raymond Lu * Tuesday, Oct 23, 2001 * Changed the file access list to the new generic property * list. * *------------------------------------------------------------------------- */ herr_t H5Pset_sieve_buf_size(hid_t plist_id, hsize_t _size) { H5P_genplist_t *plist; /* Property list pointer */ size_t size=(size_t)_size; /* Work around size difference */ herr_t ret_value=SUCCEED; /* return value */ FUNC_ENTER_API(H5Pset_sieve_buf_size, FAIL); H5TRACE2("e","ih",plist_id,_size); /* Get the plist structure */ if(NULL == (plist = H5P_object_verify(plist_id,H5P_FILE_ACCESS))) HGOTO_ERROR(H5E_ATOM, H5E_BADATOM, FAIL, "can't find object for ID"); /* Set values */ if(H5P_set(plist, H5F_ACS_SIEVE_BUF_SIZE_NAME, &size) < 0) HGOTO_ERROR(H5E_PLIST, H5E_CANTSET, FAIL, "can't set sieve buffer size"); done: FUNC_LEAVE_API(ret_value); } /* end H5Pset_sieve_buf_size() */ /*------------------------------------------------------------------------- * Function: H5Pget_sieve_buf_size * * Purpose: Returns the current settings for the data sieve buffer size * property from a file access property list. * * Return: Non-negative on success/Negative on failure * * Programmer: Quincey Koziol * Thursday, September 21, 2000 * * Modifications: * * Raymond Lu * Tuesday, Oct 23, 2001 * Changed the file access list to the new generic property * list. * *------------------------------------------------------------------------- */ herr_t H5Pget_sieve_buf_size(hid_t plist_id, hsize_t *_size/*out*/) { H5P_genplist_t *plist; /* Property list pointer */ size_t size; /* Work around size difference */ herr_t ret_value=SUCCEED; /* return value */ FUNC_ENTER_API(H5Pget_sieve_buf_size, FAIL); H5TRACE2("e","ix",plist_id,_size); /* Get the plist structure */ if(NULL == (plist = H5P_object_verify(plist_id,H5P_FILE_ACCESS))) HGOTO_ERROR(H5E_ATOM, H5E_BADATOM, FAIL, "can't find object for ID"); /* Get values */ if (_size) { if(H5P_get(plist, H5F_ACS_SIEVE_BUF_SIZE_NAME, &size) < 0) HGOTO_ERROR(H5E_PLIST, H5E_CANTGET, FAIL, "can't get sieve buffer size"); *_size=size; } /* end if */ done: FUNC_LEAVE_API(ret_value); } /* end H5Pget_sieve_buf_size() */ #else /* H5_WANT_H5_V1_4_COMPAT */ /*------------------------------------------------------------------------- * Function: H5Pset_sieve_buf_size * * Purpose: Sets the maximum size of the data seive buffer used for file * drivers which are capable of using data sieving. The data sieve * buffer is used when performing I/O on datasets in the file. Using a * buffer which is large anough to hold several pieces of the dataset * being read in for hyperslab selections boosts performance by quite a * bit. * * The default value is set to 64KB, indicating that file I/O for raw data * reads and writes will occur in at least 64KB blocks. * Setting the value to 0 with this API function will turn off the * data sieving, even if the VFL driver attempts to use that strategy. * * Return: Non-negative on success/Negative on failure * * Programmer: Quincey Koziol * Thursday, September 21, 2000 * * Modifications: * * Raymond Lu * Tuesday, Oct 23, 2001 * Changed the file access list to the new generic property * list. * *------------------------------------------------------------------------- */ herr_t H5Pset_sieve_buf_size(hid_t plist_id, size_t size) { H5P_genplist_t *plist; /* Property list pointer */ herr_t ret_value=SUCCEED; /* return value */ FUNC_ENTER_API(H5Pset_sieve_buf_size, FAIL); H5TRACE2("e","iz",plist_id,size); /* Get the plist structure */ if(NULL == (plist = H5P_object_verify(plist_id,H5P_FILE_ACCESS))) HGOTO_ERROR(H5E_ATOM, H5E_BADATOM, FAIL, "can't find object for ID"); /* Set values */ if(H5P_set(plist, H5F_ACS_SIEVE_BUF_SIZE_NAME, &size) < 0) HGOTO_ERROR(H5E_PLIST, H5E_CANTSET, FAIL, "can't set sieve buffer size"); done: FUNC_LEAVE_API(ret_value); } /* end H5Pset_sieve_buf_size() */ /*------------------------------------------------------------------------- * Function: H5Pget_sieve_buf_size * * Purpose: Returns the current settings for the data sieve buffer size * property from a file access property list. * * Return: Non-negative on success/Negative on failure * * Programmer: Quincey Koziol * Thursday, September 21, 2000 * * Modifications: * * Raymond Lu * Tuesday, Oct 23, 2001 * Changed the file access list to the new generic property * list. * *------------------------------------------------------------------------- */ herr_t H5Pget_sieve_buf_size(hid_t plist_id, size_t *size/*out*/) { H5P_genplist_t *plist; /* Property list pointer */ herr_t ret_value=SUCCEED; /* return value */ FUNC_ENTER_API(H5Pget_sieve_buf_size, FAIL); H5TRACE2("e","ix",plist_id,size); /* Get the plist structure */ if(NULL == (plist = H5P_object_verify(plist_id,H5P_FILE_ACCESS))) HGOTO_ERROR(H5E_ATOM, H5E_BADATOM, FAIL, "can't find object for ID"); /* Get values */ if (size) if(H5P_get(plist, H5F_ACS_SIEVE_BUF_SIZE_NAME, size) < 0) HGOTO_ERROR(H5E_PLIST, H5E_CANTGET, FAIL, "can't get sieve buffer size"); done: FUNC_LEAVE_API(ret_value); } /* end H5Pget_sieve_buf_size() */ #endif /* H5_WANT_H5_V1_4_COMPAT */ /*------------------------------------------------------------------------- * Function: H5Pset_small_data_block_size * * Purpose: Sets the minimum size of "small" raw data block allocations * when the H5FD_FEAT_AGGREGATE_SMALLDATA is set by a VFL driver. * Each "small" raw data block is allocated to be this size and then * pieces of raw data which are small enough to fit are sub-allocated from * this block. * * The default value is set to 2048 (bytes), indicating that raw data * smaller than this value will be attempted to be bunched together in (at * least) 2K blocks in the file. Setting the value to 0 with this API * function will turn off the "small" raw data aggregation, even if the * VFL driver attempts to use that strategy. * * Return: Non-negative on success/Negative on failure * * Programmer: Quincey Koziol * Wednesday, June 5, 2002 * * Modifications: * *------------------------------------------------------------------------- */ herr_t H5Pset_small_data_block_size(hid_t plist_id, hsize_t size) { H5P_genplist_t *plist; /* Property list pointer */ herr_t ret_value=SUCCEED; /* return value */ FUNC_ENTER_API(H5Pset_small_data_block_size, FAIL); H5TRACE2("e","ih",plist_id,size); /* Get the plist structure */ if(NULL == (plist = H5P_object_verify(plist_id,H5P_FILE_ACCESS))) HGOTO_ERROR(H5E_ATOM, H5E_BADATOM, FAIL, "can't find object for ID"); /* Set values */ if(H5P_set(plist, H5F_ACS_SDATA_BLOCK_SIZE_NAME, &size) < 0) HGOTO_ERROR(H5E_PLIST, H5E_CANTSET, FAIL, "can't set 'small data' block size"); done: FUNC_LEAVE_API(ret_value); } /* end H5Pset_small_data_block_size() */ /*------------------------------------------------------------------------- * Function: H5Pget_small_data_block_size * * Purpose: Returns the current settings for the "small" raw data block * allocation property from a file access property list. * * Return: Non-negative on success/Negative on failure * * Programmer: Quincey Koziol * Wednesday, June 5, 2002 * * Modifications: * *------------------------------------------------------------------------- */ herr_t H5Pget_small_data_block_size(hid_t plist_id, hsize_t *size/*out*/) { H5P_genplist_t *plist; /* Property list pointer */ herr_t ret_value=SUCCEED; /* return value */ FUNC_ENTER_API(H5Pget_small_data_block_size, FAIL); H5TRACE2("e","ix",plist_id,size); /* Get the plist structure */ if(NULL == (plist = H5P_object_verify(plist_id,H5P_FILE_ACCESS))) HGOTO_ERROR(H5E_ATOM, H5E_BADATOM, FAIL, "can't find object for ID"); /* Get values */ if (size) { if(H5P_get(plist, H5F_ACS_META_BLOCK_SIZE_NAME, size) < 0) HGOTO_ERROR(H5E_PLIST, H5E_CANTGET, FAIL, "can't get 'small data' block size"); } /* end if */ done: FUNC_LEAVE_API(ret_value); } /* end H5Pget_small_data_block_size() */