/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * Copyright by The HDF Group. * * 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 COPYING file, which can be found at the root of the source code * * distribution tree, or in https://www.hdfgroup.org/licenses. * * If you do not have access to either file, you may request a copy from * * help@hdfgroup.org. * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */ /* * Purpose: File callbacks for the native VOL connector * */ /****************/ /* Module Setup */ /****************/ #define H5F_FRIEND /* Suppress error about including H5Fpkg */ /***********/ /* Headers */ /***********/ #include "H5private.h" /* Generic Functions */ #include "H5ACprivate.h" /* Metadata cache */ #include "H5Cprivate.h" /* Cache */ #include "H5Eprivate.h" /* Error handling */ #include "H5Fpkg.h" /* Files */ #include "H5Gprivate.h" /* Groups */ #include "H5Iprivate.h" /* IDs */ #include "H5MFprivate.h" /* File memory management */ #include "H5Pprivate.h" /* Property lists */ #include "H5PBprivate.h" /* Page buffering */ #include "H5VLprivate.h" /* Virtual Object Layer */ #include "H5VLnative_private.h" /* Native VOL connector */ /****************/ /* Local Macros */ /****************/ /******************/ /* Local Typedefs */ /******************/ /********************/ /* Local Prototypes */ /********************/ /*********************/ /* Package Variables */ /*********************/ /*****************************/ /* Library Private Variables */ /*****************************/ /*******************/ /* Local Variables */ /*******************/ /*------------------------------------------------------------------------- * Function: H5VL__native_file_create * * Purpose: Handles the file create callback * * Return: Success: file pointer * Failure: NULL * *------------------------------------------------------------------------- */ void * H5VL__native_file_create(const char *name, unsigned flags, hid_t fcpl_id, hid_t fapl_id, hid_t H5_ATTR_UNUSED dxpl_id, void H5_ATTR_UNUSED **req) { H5F_t *new_file = NULL; void *ret_value = NULL; FUNC_ENTER_PACKAGE /* Adjust bit flags by turning on the creation bit and making sure that * the EXCL or TRUNC bit is set. All newly-created files are opened for * reading and writing. */ if (0 == (flags & (H5F_ACC_EXCL | H5F_ACC_TRUNC))) flags |= H5F_ACC_EXCL; /* default */ flags |= H5F_ACC_RDWR | H5F_ACC_CREAT; /* Create the file */ if (NULL == (new_file = H5F_open(name, flags, fcpl_id, fapl_id))) HGOTO_ERROR(H5E_FILE, H5E_CANTOPENFILE, NULL, "unable to create file"); new_file->id_exists = true; ret_value = (void *)new_file; done: if (NULL == ret_value && new_file) if (H5F__close(new_file) < 0) HDONE_ERROR(H5E_FILE, H5E_CANTCLOSEFILE, NULL, "problems closing file"); FUNC_LEAVE_NOAPI(ret_value) } /* end H5VL__native_file_create() */ /*------------------------------------------------------------------------- * Function: H5VL__native_file_open * * Purpose: Handles the file open callback * * Return: Success: file pointer * Failure: NULL * *------------------------------------------------------------------------- */ void * H5VL__native_file_open(const char *name, unsigned flags, hid_t fapl_id, hid_t H5_ATTR_UNUSED dxpl_id, void H5_ATTR_UNUSED **req) { H5F_t *new_file = NULL; void *ret_value = NULL; FUNC_ENTER_PACKAGE /* Open the file */ if (NULL == (new_file = H5F_open(name, flags, H5P_FILE_CREATE_DEFAULT, fapl_id))) HGOTO_ERROR(H5E_FILE, H5E_CANTOPENFILE, NULL, "unable to open file"); new_file->id_exists = true; ret_value = (void *)new_file; done: if (NULL == ret_value && new_file && H5F_try_close(new_file, NULL) < 0) HDONE_ERROR(H5E_FILE, H5E_CANTCLOSEFILE, NULL, "problems closing file"); FUNC_LEAVE_NOAPI(ret_value) } /* end H5VL__native_file_open() */ /*------------------------------------------------------------------------- * Function: H5VL__native_file_get * * Purpose: Handles the file get callback * * Return: SUCCEED/FAIL * *------------------------------------------------------------------------- */ herr_t H5VL__native_file_get(void *obj, H5VL_file_get_args_t *args, hid_t H5_ATTR_UNUSED dxpl_id, void H5_ATTR_UNUSED **req) { H5F_t *f = NULL; /* File struct */ herr_t ret_value = SUCCEED; /* Return value */ FUNC_ENTER_PACKAGE switch (args->op_type) { /* "get container info" */ case H5VL_FILE_GET_CONT_INFO: { if (H5F__get_cont_info((H5F_t *)obj, args->args.get_cont_info.info) < 0) HGOTO_ERROR(H5E_FILE, H5E_CANTGET, FAIL, "can't get file container info"); break; } /* H5Fget_access_plist */ case H5VL_FILE_GET_FAPL: { if ((args->args.get_fapl.fapl_id = H5F_get_access_plist((H5F_t *)obj, true)) < 0) HGOTO_ERROR(H5E_FILE, H5E_CANTGET, FAIL, "can't get file access property list"); break; } /* H5Fget_create_plist */ case H5VL_FILE_GET_FCPL: { H5P_genplist_t *plist; /* Property list */ f = (H5F_t *)obj; if (NULL == (plist = (H5P_genplist_t *)H5I_object(f->shared->fcpl_id))) HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a property list"); /* Create the property list object to return */ if ((args->args.get_fcpl.fcpl_id = H5P_copy_plist(plist, true)) < 0) HGOTO_ERROR(H5E_PLIST, H5E_CANTINIT, FAIL, "unable to copy file creation properties"); break; } /* H5Fget_intent */ case H5VL_FILE_GET_INTENT: { f = (H5F_t *)obj; /* HDF5 uses some flags internally that users don't know about. * Simplify things for them so that they only get either H5F_ACC_RDWR * or H5F_ACC_RDONLY and any SWMR flags. */ if (H5F_INTENT(f) & H5F_ACC_RDWR) { *args->args.get_intent.flags = H5F_ACC_RDWR; /* Check for SWMR write access on the file */ if (H5F_INTENT(f) & H5F_ACC_SWMR_WRITE) *args->args.get_intent.flags |= H5F_ACC_SWMR_WRITE; } /* end if */ else { *args->args.get_intent.flags = H5F_ACC_RDONLY; /* Check for SWMR read access on the file */ if (H5F_INTENT(f) & H5F_ACC_SWMR_READ) *args->args.get_intent.flags |= H5F_ACC_SWMR_READ; } /* end else */ break; } /* H5Fget_fileno */ case H5VL_FILE_GET_FILENO: { unsigned long fileno = 0; H5F_GET_FILENO((H5F_t *)obj, fileno); *args->args.get_fileno.fileno = fileno; break; } /* H5Fget_name */ case H5VL_FILE_GET_NAME: { H5VL_file_get_name_args_t *file_args = &args->args.get_name; if (H5VL_native_get_file_struct(obj, file_args->type, &f) < 0) HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a file or file object"); /* Get length of file name */ *file_args->file_name_len = strlen(H5F_OPEN_NAME(f)); /* Populate buffer with name, if given */ if (file_args->buf) { strncpy(file_args->buf, H5F_OPEN_NAME(f), MIN(*file_args->file_name_len + 1, file_args->buf_size)); if (*file_args->file_name_len >= file_args->buf_size) file_args->buf[file_args->buf_size - 1] = '\0'; } /* end if */ break; } /* H5Fget_obj_count */ case H5VL_FILE_GET_OBJ_COUNT: { if (H5F_get_obj_count((H5F_t *)obj, args->args.get_obj_count.types, true, args->args.get_obj_count.count) < 0) HGOTO_ERROR(H5E_FILE, H5E_CANTGET, FAIL, "can't retrieve object count"); break; } /* H5Fget_obj_ids */ case H5VL_FILE_GET_OBJ_IDS: { H5VL_file_get_obj_ids_args_t *file_args = &args->args.get_obj_ids; if (H5F_get_obj_ids((H5F_t *)obj, file_args->types, file_args->max_objs, file_args->oid_list, true, file_args->count) < 0) HGOTO_ERROR(H5E_FILE, H5E_CANTGET, FAIL, "can't retrieve object IDs"); break; } default: HGOTO_ERROR(H5E_VOL, H5E_CANTGET, FAIL, "can't get this type of information"); } /* end switch */ done: FUNC_LEAVE_NOAPI(ret_value) } /* end H5VL__native_file_get() */ /*------------------------------------------------------------------------- * Function: H5VL__native_file_specific * * Purpose: Handles the file specific callback * * Return: SUCCEED/FAIL * *------------------------------------------------------------------------- */ herr_t H5VL__native_file_specific(void *obj, H5VL_file_specific_args_t *args, hid_t H5_ATTR_UNUSED dxpl_id, void H5_ATTR_UNUSED **req) { herr_t ret_value = SUCCEED; /* Return value */ FUNC_ENTER_PACKAGE switch (args->op_type) { /* H5Fflush */ case H5VL_FILE_FLUSH: { H5F_t *f = NULL; /* File to flush */ /* Get the file for the object */ if (H5VL_native_get_file_struct(obj, args->args.flush.obj_type, &f) < 0) HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a file or file object"); /* Nothing to do if the file is read only. This determination is * made at the shared open(2) flags level, implying that opening a * file twice, once for read-only and once for read-write, and then * calling H5Fflush() with the read-only handle, still causes data * to be flushed. */ if (H5F_ACC_RDWR & H5F_INTENT(f)) { /* Flush other files, depending on scope */ if (H5F_SCOPE_GLOBAL == args->args.flush.scope) { /* Call the flush routine for mounted file hierarchies */ if (H5F_flush_mounts(f) < 0) HGOTO_ERROR(H5E_FILE, H5E_CANTFLUSH, FAIL, "unable to flush mounted file hierarchy"); } /* end if */ else { /* Call the flush routine, for this file */ if (H5F__flush(f) < 0) HGOTO_ERROR(H5E_FILE, H5E_CANTFLUSH, FAIL, "unable to flush file's cached information"); } /* end else */ } /* end if */ break; } /* H5Freopen */ case H5VL_FILE_REOPEN: { H5F_t *new_file; /* Reopen the file through the VOL connector */ if (NULL == (new_file = H5F__reopen((H5F_t *)obj))) HGOTO_ERROR(H5E_FILE, H5E_CANTINIT, FAIL, "unable to reopen file"); new_file->id_exists = true; /* Set 'out' value */ *args->args.reopen.file = new_file; break; } /* H5Fis_accessible */ case H5VL_FILE_IS_ACCESSIBLE: { htri_t result; if ((result = H5F__is_hdf5(args->args.is_accessible.filename, args->args.is_accessible.fapl_id)) < 0) HGOTO_ERROR(H5E_FILE, H5E_CANTGET, FAIL, "error in HDF5 file check"); /* Set 'out' value */ *args->args.is_accessible.accessible = (bool)result; break; } /* H5Fdelete */ case H5VL_FILE_DELETE: { if (H5F__delete(args->args.del.filename, args->args.del.fapl_id) < 0) HGOTO_ERROR(H5E_FILE, H5E_CANTDELETEFILE, FAIL, "error in HDF5 file deletion"); break; } /* Check if two files are the same */ case H5VL_FILE_IS_EQUAL: { if (!obj || !args->args.is_equal.obj2) *args->args.is_equal.same_file = false; else *args->args.is_equal.same_file = (((H5F_t *)obj)->shared == ((H5F_t *)args->args.is_equal.obj2)->shared); break; } default: HGOTO_ERROR(H5E_VOL, H5E_UNSUPPORTED, FAIL, "invalid specific operation"); } /* end switch */ done: FUNC_LEAVE_NOAPI(ret_value) } /* end H5VL__native_file_specific() */ /*------------------------------------------------------------------------- * Function: H5VL__native_file_optional * * Purpose: Handles the file optional callback * * Return: SUCCEED/FAIL * *------------------------------------------------------------------------- */ herr_t H5VL__native_file_optional(void *obj, H5VL_optional_args_t *args, hid_t H5_ATTR_UNUSED dxpl_id, void H5_ATTR_UNUSED **req) { H5F_t *f = (H5F_t *)obj; /* File */ H5VL_native_file_optional_args_t *opt_args = args->args; /* Pointer to native operation's arguments */ herr_t ret_value = SUCCEED; /* Return value */ FUNC_ENTER_PACKAGE switch (args->op_type) { /* H5Fget_filesize */ case H5VL_NATIVE_FILE_GET_SIZE: { haddr_t max_eof_eoa; /* Maximum of the EOA & EOF */ haddr_t base_addr; /* Base address for the file */ /* Get the actual file size & base address */ if (H5F__get_max_eof_eoa(f, &max_eof_eoa) < 0) HGOTO_ERROR(H5E_FILE, H5E_CANTGET, FAIL, "file can't get max eof/eoa "); base_addr = H5FD_get_base_addr(f->shared->lf); /* Convert relative base address for file to absolute address */ *opt_args->get_size.size = (hsize_t)(max_eof_eoa + base_addr); break; } /* H5Fget_file_image */ case H5VL_NATIVE_FILE_GET_FILE_IMAGE: { H5VL_native_file_get_file_image_t *gfi_args = &opt_args->get_file_image; /* Get file image */ if (H5F__get_file_image(f, gfi_args->buf, gfi_args->buf_size, gfi_args->image_len) < 0) HGOTO_ERROR(H5E_FILE, H5E_CANTGET, FAIL, "get file image failed"); break; } /* H5Fget_freespace */ case H5VL_NATIVE_FILE_GET_FREE_SPACE: { H5VL_native_file_get_freespace_t *gfs_args = &opt_args->get_freespace; /* Get the actual amount of free space in the file */ if (H5MF_get_freespace(f, gfs_args->size, NULL) < 0) HGOTO_ERROR(H5E_FILE, H5E_CANTGET, FAIL, "unable to check free space for file"); break; } /* H5Fget_free_sections */ case H5VL_NATIVE_FILE_GET_FREE_SECTIONS: { H5VL_native_file_get_free_sections_t *gfs_args = &opt_args->get_free_sections; /* Go get the free-space section information in the file */ if (H5MF_get_free_sections(f, gfs_args->type, gfs_args->nsects, gfs_args->sect_info, gfs_args->sect_count) < 0) HGOTO_ERROR(H5E_FILE, H5E_CANTGET, FAIL, "unable to check free space for file"); break; } /* H5Fget_info1/2 */ case H5VL_NATIVE_FILE_GET_INFO: { H5VL_native_file_get_info_t *gfi_args = &opt_args->get_info; /* Get the file struct. This call is careful to not return the file pointer * for the top file in a mount hierarchy. */ if (H5VL_native_get_file_struct(obj, gfi_args->type, &f) < 0) HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "could not get a file struct"); /* Get the file info */ if (H5F__get_info(f, gfi_args->finfo) < 0) HGOTO_ERROR(H5E_FILE, H5E_CANTGET, FAIL, "unable to retrieve file info"); break; } /* H5Fget_mdc_config */ case H5VL_NATIVE_FILE_GET_MDC_CONF: { /* Get the metadata cache configuration */ if (H5AC_get_cache_auto_resize_config(f->shared->cache, opt_args->get_mdc_config.config) < 0) HGOTO_ERROR(H5E_FILE, H5E_CANTGET, FAIL, "can't get metadata cache configuration"); break; } /* H5Fget_mdc_hit_rate */ case H5VL_NATIVE_FILE_GET_MDC_HR: { /* Get the current hit rate */ if (H5AC_get_cache_hit_rate(f->shared->cache, opt_args->get_mdc_hit_rate.hit_rate) < 0) HGOTO_ERROR(H5E_FILE, H5E_CANTGET, FAIL, "can't get metadata cache hit rate"); break; } /* H5Fget_mdc_size */ case H5VL_NATIVE_FILE_GET_MDC_SIZE: { H5VL_native_file_get_mdc_size_t *gms_args = &opt_args->get_mdc_size; /* Get the size data */ if (H5AC_get_cache_size(f->shared->cache, gms_args->max_size, gms_args->min_clean_size, gms_args->cur_size, gms_args->cur_num_entries) < 0) HGOTO_ERROR(H5E_FILE, H5E_CANTGET, FAIL, "can't get metadata cache size"); break; } /* H5Fget_vfd_handle */ case H5VL_NATIVE_FILE_GET_VFD_HANDLE: { H5VL_native_file_get_vfd_handle_t *gvh_args = &opt_args->get_vfd_handle; /* Retrieve the VFD handle for the file */ if (H5F_get_vfd_handle(f, gvh_args->fapl_id, gvh_args->file_handle) < 0) HGOTO_ERROR(H5E_FILE, H5E_CANTGET, FAIL, "can't retrieve VFD handle"); break; } /* H5Fclear_elink_file_cache */ case H5VL_NATIVE_FILE_CLEAR_ELINK_CACHE: { /* Release the EFC */ if (f->shared->efc) if (H5F__efc_release(f->shared->efc) < 0) HGOTO_ERROR(H5E_FILE, H5E_CANTRELEASE, FAIL, "can't release external file cache"); break; } /* H5Freset_mdc_hit_rate_stats */ case H5VL_NATIVE_FILE_RESET_MDC_HIT_RATE: { /* Reset the hit rate statistic */ if (H5AC_reset_cache_hit_rate_stats(f->shared->cache) < 0) HGOTO_ERROR(H5E_FILE, H5E_CANTSET, FAIL, "can't reset cache hit rate"); break; } /* H5Fset_mdc_config */ case H5VL_NATIVE_FILE_SET_MDC_CONFIG: { /* Set the metadata cache configuration */ if (H5AC_set_cache_auto_resize_config(f->shared->cache, opt_args->set_mdc_config.config) < 0) HGOTO_ERROR(H5E_FILE, H5E_CANTSET, FAIL, "can't set metadata cache configuration"); break; } /* H5Fget_metadata_read_retry_info */ case H5VL_NATIVE_FILE_GET_METADATA_READ_RETRY_INFO: { if (H5F_get_metadata_read_retry_info(f, opt_args->get_metadata_read_retry_info.info) < 0) HGOTO_ERROR(H5E_FILE, H5E_CANTGET, FAIL, "can't get metadata read retry info"); break; } /* H5Fstart_swmr_write */ case H5VL_NATIVE_FILE_START_SWMR_WRITE: { if (H5F__start_swmr_write(f) < 0) HGOTO_ERROR(H5E_FILE, H5E_CANTSET, FAIL, "can't start SWMR write"); break; } /* H5Fstart_mdc_logging */ case H5VL_NATIVE_FILE_START_MDC_LOGGING: { /* Call mdc logging function */ if (H5C_start_logging(f->shared->cache) < 0) HGOTO_ERROR(H5E_FILE, H5E_LOGGING, FAIL, "unable to start mdc logging"); break; } /* H5Fstop_mdc_logging */ case H5VL_NATIVE_FILE_STOP_MDC_LOGGING: { /* Call mdc logging function */ if (H5C_stop_logging(f->shared->cache) < 0) HGOTO_ERROR(H5E_FILE, H5E_LOGGING, FAIL, "unable to stop mdc logging"); break; } /* H5Fget_mdc_logging_status */ case H5VL_NATIVE_FILE_GET_MDC_LOGGING_STATUS: { H5VL_native_file_get_mdc_logging_status_t *gmls_args = &opt_args->get_mdc_logging_status; /* Call mdc logging function */ if (H5C_get_logging_status(f->shared->cache, gmls_args->is_enabled, gmls_args->is_currently_logging) < 0) HGOTO_ERROR(H5E_FILE, H5E_LOGGING, FAIL, "unable to get logging status"); break; } /* H5Fformat_convert */ case H5VL_NATIVE_FILE_FORMAT_CONVERT: { /* Convert the format */ if (H5F__format_convert(f) < 0) HGOTO_ERROR(H5E_FILE, H5E_CANTCONVERT, FAIL, "can't convert file format"); break; } /* H5Freset_page_buffering_stats */ case H5VL_NATIVE_FILE_RESET_PAGE_BUFFERING_STATS: { /* Sanity check */ if (NULL == f->shared->page_buf) HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "page buffering not enabled on file"); /* Reset the statistics */ if (H5PB_reset_stats(f->shared->page_buf) < 0) HGOTO_ERROR(H5E_FILE, H5E_CANTGET, FAIL, "can't reset stats for page buffering"); break; } /* H5Fget_page_buffering_stats */ case H5VL_NATIVE_FILE_GET_PAGE_BUFFERING_STATS: { H5VL_native_file_get_page_buffering_stats_t *gpbs_args = &opt_args->get_page_buffering_stats; /* Sanity check */ if (NULL == f->shared->page_buf) HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "page buffering not enabled on file"); /* Get the statistics */ if (H5PB_get_stats(f->shared->page_buf, gpbs_args->accesses, gpbs_args->hits, gpbs_args->misses, gpbs_args->evictions, gpbs_args->bypasses) < 0) HGOTO_ERROR(H5E_FILE, H5E_CANTGET, FAIL, "can't retrieve stats for page buffering"); break; } /* H5Fget_mdc_image_info */ case H5VL_NATIVE_FILE_GET_MDC_IMAGE_INFO: { H5VL_native_file_get_mdc_image_info_t *gmii_args = &opt_args->get_mdc_image_info; /* Go get the address and size of the cache image */ if (H5AC_get_mdc_image_info(f->shared->cache, gmii_args->addr, gmii_args->len) < 0) HGOTO_ERROR(H5E_FILE, H5E_CANTGET, FAIL, "can't retrieve cache image info"); break; } /* H5Fget_eoa */ case H5VL_NATIVE_FILE_GET_EOA: { haddr_t rel_eoa; /* Relative address of EOA */ /* This routine will work only for drivers with this feature enabled.*/ /* We might introduce a new feature flag in the future */ if (!H5F_HAS_FEATURE(f, H5FD_FEAT_SUPPORTS_SWMR_IO)) HGOTO_ERROR(H5E_FILE, H5E_BADVALUE, FAIL, "must use a SWMR-compatible VFD for this public routine"); /* The real work */ if (HADDR_UNDEF == (rel_eoa = H5F_get_eoa(f, H5FD_MEM_DEFAULT))) HGOTO_ERROR(H5E_FILE, H5E_CANTGET, FAIL, "get_eoa request failed"); /* Set return value */ /* (Note compensating for base address subtraction in internal routine) */ *opt_args->get_eoa.eoa = rel_eoa + H5F_get_base_addr(f); break; } /* H5Fincrement_filesize */ case H5VL_NATIVE_FILE_INCR_FILESIZE: { haddr_t max_eof_eoa; /* Maximum of the relative EOA & EOF */ /* This public routine will work only for drivers with this feature enabled.*/ /* We might introduce a new feature flag in the future */ if (!H5F_HAS_FEATURE(f, H5FD_FEAT_SUPPORTS_SWMR_IO)) HGOTO_ERROR(H5E_FILE, H5E_BADVALUE, FAIL, "must use a SWMR-compatible VFD for this public routine"); /* Get the maximum of EOA and EOF */ if (H5F__get_max_eof_eoa(f, &max_eof_eoa) < 0) HGOTO_ERROR(H5E_FILE, H5E_CANTGET, FAIL, "file can't get max eof/eoa "); /* Set EOA to the maximum value + increment */ if (H5F__set_eoa(f, H5FD_MEM_DEFAULT, max_eof_eoa + opt_args->increment_filesize.increment) < 0) HGOTO_ERROR(H5E_FILE, H5E_CANTSET, FAIL, "driver set_eoa request failed"); break; } /* H5Fset_latest_format, H5Fset_libver_bounds */ case H5VL_NATIVE_FILE_SET_LIBVER_BOUNDS: { H5VL_native_file_set_libver_bounds_t *slb_args = &opt_args->set_libver_bounds; /* Call internal set_libver_bounds function */ if (H5F__set_libver_bounds(f, slb_args->low, slb_args->high) < 0) HGOTO_ERROR(H5E_FILE, H5E_CANTSET, FAIL, "cannot set low/high bounds"); break; } /* H5Fget_dset_no_attrs_hint */ case H5VL_NATIVE_FILE_GET_MIN_DSET_OHDR_FLAG: { *opt_args->get_min_dset_ohdr_flag.minimize = H5F_GET_MIN_DSET_OHDR(f); break; } /* H5Fset_dset_no_attrs_hint */ case H5VL_NATIVE_FILE_SET_MIN_DSET_OHDR_FLAG: { if (H5F_set_min_dset_ohdr(f, opt_args->set_min_dset_ohdr_flag.minimize) < 0) HGOTO_ERROR(H5E_FILE, H5E_CANTSET, FAIL, "cannot set file's dataset object header minimization flag"); break; } #ifdef H5_HAVE_PARALLEL /* H5Fget_mpi_atomicity */ case H5VL_NATIVE_FILE_GET_MPI_ATOMICITY: { if (H5F__get_mpi_atomicity(f, opt_args->get_mpi_atomicity.flag) < 0) HGOTO_ERROR(H5E_FILE, H5E_CANTGET, FAIL, "cannot get MPI atomicity"); break; } /* H5Fset_mpi_atomicity */ case H5VL_NATIVE_FILE_SET_MPI_ATOMICITY: { if (H5F__set_mpi_atomicity(f, opt_args->set_mpi_atomicity.flag) < 0) HGOTO_ERROR(H5E_FILE, H5E_CANTSET, FAIL, "cannot set MPI atomicity"); break; } #endif /* H5_HAVE_PARALLEL */ /* Finalize H5Fopen */ case H5VL_NATIVE_FILE_POST_OPEN: { /* Call package routine */ if (H5F__post_open(f) < 0) HGOTO_ERROR(H5E_FILE, H5E_CANTINIT, FAIL, "can't finish opening file"); break; } default: HGOTO_ERROR(H5E_VOL, H5E_UNSUPPORTED, FAIL, "invalid optional operation"); } /* end switch */ done: FUNC_LEAVE_NOAPI(ret_value) } /* end H5VL__native_file_optional() */ /*------------------------------------------------------------------------- * Function: H5VL__native_file_close * * Purpose: Handles the file close callback * * Return: Success: SUCCEED * Failure: FAIL (file will not be closed) * *------------------------------------------------------------------------- */ herr_t H5VL__native_file_close(void *file, hid_t H5_ATTR_UNUSED dxpl_id, void H5_ATTR_UNUSED **req) { int nref; H5F_t *f = (H5F_t *)file; hid_t file_id = H5I_INVALID_HID; herr_t ret_value = SUCCEED; /* Return value */ FUNC_ENTER_PACKAGE /* This routine should only be called when a file ID's ref count drops to zero */ assert(f->shared == NULL || H5F_ID_EXISTS(f)); if (f->shared == NULL) f = H5FL_FREE(H5F_t, f); else { /* Flush file if this is the last reference to this id and we have write * intent, unless it will be flushed by the "shared" file being closed. * This is only necessary to replicate previous behaviour, and could be * disabled by an option/property to improve performance. */ if ((H5F_NREFS(f) > 1) && (H5F_INTENT(f) & H5F_ACC_RDWR)) { /* Get the file ID corresponding to the H5F_t struct */ if (H5I_find_id(f, H5I_FILE, &file_id) < 0 || H5I_INVALID_HID == file_id) HGOTO_ERROR(H5E_ID, H5E_CANTGET, FAIL, "invalid ID"); /* Get the number of references outstanding for this file ID */ if ((nref = H5I_get_ref(file_id, false)) < 0) HGOTO_ERROR(H5E_ID, H5E_CANTGET, FAIL, "can't get ID ref count"); if (nref == 1) if (H5F__flush(f) < 0) HGOTO_ERROR(H5E_FILE, H5E_CANTFLUSH, FAIL, "unable to flush cache"); } /* end if */ /* Close the file */ if (H5F__close(f) < 0) HGOTO_ERROR(H5E_FILE, H5E_CANTDEC, FAIL, "can't close file"); } done: FUNC_LEAVE_NOAPI(ret_value) } /* end H5VL__native_file_close() */