diff options
Diffstat (limited to 'src/H5Fint.c')
| -rw-r--r-- | src/H5Fint.c | 1994 |
1 files changed, 1429 insertions, 565 deletions
diff --git a/src/H5Fint.c b/src/H5Fint.c index 444d409..49538f4 100644 --- a/src/H5Fint.c +++ b/src/H5Fint.c @@ -5,12 +5,10 @@ * * * 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://hdfgroup.org/HDF5/doc/Copyright.html. If you do not have * - * access to either file, you may request a copy from help@hdfgroup.org. * + * the COPYING file, which can be found at the root of the source code * + * distribution tree, or in https://support.hdfgroup.org/ftp/HDF5/releases. * + * If you do not have access to either file, you may request a copy from * + * help@hdfgroup.org. * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */ /****************/ @@ -23,20 +21,22 @@ /***********/ /* Headers */ /***********/ -#include "H5private.h" /* Generic Functions */ -#include "H5Aprivate.h" /* Attributes */ -#include "H5ACprivate.h" /* Metadata cache */ -#include "H5Dprivate.h" /* Datasets */ -#include "H5Eprivate.h" /* Error handling */ -#include "H5Fpkg.h" /* File access */ -#include "H5FDprivate.h" /* File drivers */ -#include "H5Gprivate.h" /* Groups */ -#include "H5Iprivate.h" /* IDs */ -#include "H5MFprivate.h" /* File memory management */ -#include "H5MMprivate.h" /* Memory management */ -#include "H5Pprivate.h" /* Property lists */ -#include "H5SMprivate.h" /* Shared Object Header Messages */ -#include "H5Tprivate.h" /* Datatypes */ +#include "H5private.h" /* Generic Functions */ +#include "H5Aprivate.h" /* Attributes */ +#include "H5ACprivate.h" /* Metadata cache */ +#include "H5CXprivate.h" /* API Contexts */ +#include "H5Dprivate.h" /* Datasets */ +#include "H5Eprivate.h" /* Error handling */ +#include "H5Fpkg.h" /* File access */ +#include "H5FDprivate.h" /* File drivers */ +#include "H5Gprivate.h" /* Groups */ +#include "H5Iprivate.h" /* IDs */ +#include "H5Lprivate.h" /* Links */ +#include "H5MFprivate.h" /* File memory management */ +#include "H5MMprivate.h" /* Memory management */ +#include "H5Pprivate.h" /* Property lists */ +#include "H5SMprivate.h" /* Shared Object Header Messages */ +#include "H5Tprivate.h" /* Datatypes */ /****************/ @@ -74,10 +74,13 @@ typedef struct H5F_olist_t { /********************/ static int H5F_get_objects_cb(void *obj_ptr, hid_t obj_id, void *key); +static herr_t H5F__build_name(const char *prefix, const char *file_name, + char **full_name/*out*/); +static char *H5F__getenv_prefix_name(char **env_prefix/*in,out*/); static herr_t H5F_build_actual_name(const H5F_t *f, const H5P_genplist_t *fapl, const char *name, char ** /*out*/ actual_name);/* Declare a free list to manage the H5F_t struct */ -static herr_t H5F__flush_phase1(H5F_t *f, hid_t meta_dxpl_id); -static herr_t H5F__flush_phase2(H5F_t *f, hid_t meta_dxpl_id, hid_t raw_dxpl_id, hbool_t closing); +static herr_t H5F__flush_phase1(H5F_t *f); +static herr_t H5F__flush_phase2(H5F_t *f, hbool_t closing); /*********************/ @@ -100,28 +103,22 @@ H5FL_DEFINE(H5F_t); /* Declare a free list to manage the H5F_file_t struct */ H5FL_DEFINE(H5F_file_t); + /*------------------------------------------------------------------------- - * Function: H5F_get_access_plist + * Function: H5F_get_access_plist * - * Purpose: Returns a copy of the file access property list of the - * specified file. + * Purpose: Returns a copy of the file access property list of the + * specified file. * * NOTE: Make sure that, if you are going to overwrite * information in the copied property list that was * previously opened and assigned to the property list, then * you must close it before overwriting the values. * - * Return: Success: Object ID for a copy of the file access - * property list. - * - * Failure: FAIL - * - * Programmer: Quincey Koziol - * Wednesday, May 25, 2005 - * - * Modifications: - * + * Return: Success: Object ID for a copy of the file access + * property list. + * Failure: FAIL *------------------------------------------------------------------------- */ hid_t @@ -131,9 +128,8 @@ H5F_get_access_plist(H5F_t *f, hbool_t app_ref) H5P_genplist_t *old_plist; /* Old property list */ H5FD_driver_prop_t driver_prop; /* Property for driver ID & info */ hbool_t driver_prop_copied = FALSE; /* Whether the driver property has been set up */ - unsigned efc_size = 0; - hbool_t latest_format = FALSE; /* Always use the latest format? */ - hid_t ret_value = SUCCEED; /* Return value */ + unsigned efc_size = 0; + hid_t ret_value = SUCCEED; /* Return value */ FUNC_ENTER_NOAPI(FAIL) @@ -144,7 +140,7 @@ H5F_get_access_plist(H5F_t *f, hbool_t app_ref) if(NULL == (old_plist = (H5P_genplist_t *)H5I_object(H5P_LST_FILE_ACCESS_ID_g))) HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a property list") if((ret_value = H5P_copy_plist(old_plist, app_ref)) < 0) - HGOTO_ERROR(H5E_INTERNAL, H5E_CANTINIT, FAIL, "can't copy file access property list") + HGOTO_ERROR(H5E_INTERNAL, H5E_CANTINIT, FAIL, "can't copy file access property list") if(NULL == (new_plist = (H5P_genplist_t *)H5I_object(ret_value))) HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a property list") @@ -169,10 +165,10 @@ H5F_get_access_plist(H5F_t *f, hbool_t app_ref) HGOTO_ERROR(H5E_PLIST, H5E_CANTSET, FAIL, "can't sieve buffer size") if(H5P_set(new_plist, H5F_ACS_SDATA_BLOCK_SIZE_NAME, &(f->shared->sdata_aggr.alloc_size)) < 0) HGOTO_ERROR(H5E_PLIST, H5E_CANTSET, FAIL, "can't set 'small data' cache size") - if(f->shared->latest_flags > 0) - latest_format = TRUE; - if(H5P_set(new_plist, H5F_ACS_LATEST_FORMAT_NAME, &latest_format) < 0) - HGOTO_ERROR(H5E_PLIST, H5E_CANTSET, FAIL, "can't set 'latest format' flag") + if(H5P_set(new_plist, H5F_ACS_LIBVER_LOW_BOUND_NAME, &f->shared->low_bound) < 0) + HGOTO_ERROR(H5E_PLIST, H5E_CANTSET, FAIL, "can't set 'low' bound for library format versions") + if(H5P_set(new_plist, H5F_ACS_LIBVER_HIGH_BOUND_NAME, &f->shared->high_bound) < 0) + HGOTO_ERROR(H5E_PLIST, H5E_CANTSET, FAIL, "can't set 'high' bound for library format versions") if(H5P_set(new_plist, H5F_ACS_METADATA_READ_ATTEMPTS_NAME, &(f->shared->read_attempts)) < 0) HGOTO_ERROR(H5E_PLIST, H5E_CANTSET, FAIL, "can't set 'read attempts ' flag") if(H5P_set(new_plist, H5F_ACS_OBJECT_FLUSH_CB_NAME, &(f->shared->object_flush)) < 0) @@ -224,16 +220,12 @@ done: /*------------------------------------------------------------------------- - * Function: H5F_get_obj_count + * Function: H5F_get_obj_count * - * Purpose: Private function return the number of opened object IDs - * (files, datasets, groups, datatypes) in the same file. + * Purpose: Private function return the number of opened object IDs + * (files, datasets, groups, datatypes) in the same file. * * Return: SUCCEED on success, FAIL on failure. - * - * Programmer: Raymond Lu - * Wednesday, Dec 5, 2001 - * *------------------------------------------------------------------------- */ herr_t @@ -261,10 +253,6 @@ done: * Purpose: Private function to return a list of opened object IDs. * * Return: Non-negative on success; can't fail. - * - * Programmer: Raymond Lu - * Wednesday, Dec 5, 2001 - * *------------------------------------------------------------------------- */ herr_t @@ -287,16 +275,13 @@ done: /*--------------------------------------------------------------------------- - * Function: H5F_get_objects + * Function: H5F_get_objects * - * Purpose: This function is called by H5F_get_obj_count or - * H5F_get_obj_ids to get number of object IDs and/or a - * list of opened object IDs (in return value). - * Return: Non-negative on success; Can't fail. - * - * Programmer: Raymond Lu - * Wednesday, Dec 5, 2001 + * Purpose: This function is called by H5F_get_obj_count or + * H5F_get_obj_ids to get number of object IDs and/or a + * list of opened object IDs (in return value). * + * Return: Non-negative on success; Can't fail. *--------------------------------------------------------------------------- */ herr_t @@ -315,7 +300,7 @@ H5F_get_objects(const H5F_t *f, unsigned types, size_t max_nobjs, hid_t *obj_id_ olist.obj_id_list = (max_nobjs==0 ? NULL : obj_id_list); olist.obj_id_count = &obj_id_count; olist.list_index = 0; - olist.max_nobjs = max_nobjs; + olist.max_nobjs = max_nobjs; /* Determine if we are searching for local or global objects */ if(types & H5F_OBJ_LOCAL) { @@ -339,37 +324,37 @@ H5F_get_objects(const H5F_t *f, unsigned types, size_t max_nobjs, hid_t *obj_id_ * or the caller wants to get the list of IDs and the list isn't full, * search through dataset IDs to count number of datasets, and put their * IDs on the object list */ - if(!olist.max_nobjs || (olist.max_nobjs && olist.list_index<olist.max_nobjs)) { + if(!olist.max_nobjs || (olist.max_nobjs && olist.list_index<olist.max_nobjs)) { if (types & H5F_OBJ_DATASET) { olist.obj_type = H5I_DATASET; if(H5I_iterate(H5I_DATASET, H5F_get_objects_cb, &olist, app_ref) < 0) HGOTO_ERROR(H5E_FILE, H5E_BADITER, FAIL, "iteration failed(2)") } /* end if */ - } + } /* If the caller just wants to count the number of objects (OLIST.MAX_NOBJS is zero), * or the caller wants to get the list of IDs and the list isn't full, * search through group IDs to count number of groups, and put their * IDs on the object list */ - if(!olist.max_nobjs || (olist.max_nobjs && olist.list_index<olist.max_nobjs)) { + if(!olist.max_nobjs || (olist.max_nobjs && olist.list_index<olist.max_nobjs)) { if(types & H5F_OBJ_GROUP) { olist.obj_type = H5I_GROUP; if(H5I_iterate(H5I_GROUP, H5F_get_objects_cb, &olist, app_ref) < 0) HGOTO_ERROR(H5E_FILE, H5E_BADITER, FAIL, "iteration failed(3)") } /* end if */ - } + } /* If the caller just wants to count the number of objects (OLIST.MAX_NOBJS is zero), * or the caller wants to get the list of IDs and the list isn't full, * search through datatype IDs to count number of named datatypes, and put their * IDs on the object list */ - if(!olist.max_nobjs || (olist.max_nobjs && olist.list_index<olist.max_nobjs)) { + if(!olist.max_nobjs || (olist.max_nobjs && olist.list_index<olist.max_nobjs)) { if(types & H5F_OBJ_DATATYPE) { olist.obj_type = H5I_DATATYPE; if(H5I_iterate(H5I_DATATYPE, H5F_get_objects_cb, &olist, app_ref) < 0) HGOTO_ERROR(H5E_FILE, H5E_BADITER, FAIL, "iteration failed(4)") } /* end if */ - } + } /* If the caller just wants to count the number of objects (OLIST.MAX_NOBJS is zero), * or the caller wants to get the list of IDs and the list isn't full, @@ -382,7 +367,7 @@ H5F_get_objects(const H5F_t *f, unsigned types, size_t max_nobjs, hid_t *obj_id_ HGOTO_ERROR(H5E_FILE, H5E_BADITER, FAIL, "iteration failed(5)") } /* end if */ } - + /* Set the number of objects currently open */ *obj_id_count_ptr = obj_id_count; @@ -392,18 +377,14 @@ done: /*------------------------------------------------------------------------- - * Function: H5F_get_objects_cb - * - * Purpose: H5F_get_objects' callback function. It verifies if an - * object is in the file, and either count it or put its ID - * on the list. + * Function: H5F_get_objects_cb * - * Return: H5_ITER_STOP if the array of object IDs is filled up. - * H5_ITER_CONT otherwise. - * - * Programmer: Raymond Lu - * Wednesday, Dec 5, 2001 + * Purpose: H5F_get_objects' callback function. It verifies if an + * object is in the file, and either count it or put its ID + * on the list. * + * Return: H5_ITER_STOP if the array of object IDs is filled up. + * H5_ITER_CONT otherwise. *------------------------------------------------------------------------- */ static int @@ -421,77 +402,79 @@ H5F_get_objects_cb(void *obj_ptr, hid_t obj_id, void *key) /* Count file IDs */ if(olist->obj_type == H5I_FILE) { if((olist->file_info.local && - (!olist->file_info.ptr.file || (olist->file_info.ptr.file && (H5F_t*)obj_ptr == olist->file_info.ptr.file) )) - || (!olist->file_info.local && - ( !olist->file_info.ptr.shared || (olist->file_info.ptr.shared && ((H5F_t*)obj_ptr)->shared == olist->file_info.ptr.shared) ))) { + (!olist->file_info.ptr.file || + (olist->file_info.ptr.file && (H5F_t*)obj_ptr == olist->file_info.ptr.file))) || + (!olist->file_info.local && + (!olist->file_info.ptr.shared || + (olist->file_info.ptr.shared && ((H5F_t*)obj_ptr)->shared == olist->file_info.ptr.shared)))) { add_obj = TRUE; - } /* end if */ + } /* end if */ } /* end if */ else { /* either count opened object IDs or put the IDs on the list */ H5O_loc_t *oloc; /* Group entry info for object */ - switch(olist->obj_type) { - case H5I_ATTR: - oloc = H5A_oloc((H5A_t *)obj_ptr); + switch(olist->obj_type) { + case H5I_ATTR: + oloc = H5A_oloc((H5A_t *)obj_ptr); break; - case H5I_GROUP: - oloc = H5G_oloc((H5G_t *)obj_ptr); + case H5I_GROUP: + oloc = H5G_oloc((H5G_t *)obj_ptr); break; - case H5I_DATASET: - oloc = H5D_oloc((H5D_t *)obj_ptr); - break; + case H5I_DATASET: + oloc = H5D_oloc((H5D_t *)obj_ptr); + break; - case H5I_DATATYPE: + case H5I_DATATYPE: if(H5T_is_named((H5T_t*)obj_ptr)==TRUE) oloc = H5T_oloc((H5T_t*)obj_ptr); else oloc = NULL; - break; - - case H5I_UNINIT: - case H5I_BADID: - case H5I_FILE: - case H5I_DATASPACE: - case H5I_REFERENCE: - case H5I_VFL: - case H5I_GENPROP_CLS: - case H5I_GENPROP_LST: - case H5I_ERROR_CLASS: - case H5I_ERROR_MSG: - case H5I_ERROR_STACK: - case H5I_NTYPES: + break; + + case H5I_UNINIT: + case H5I_BADID: + case H5I_FILE: + case H5I_DATASPACE: + case H5I_REFERENCE: + case H5I_VFL: + case H5I_GENPROP_CLS: + case H5I_GENPROP_LST: + case H5I_ERROR_CLASS: + case H5I_ERROR_MSG: + case H5I_ERROR_STACK: + case H5I_NTYPES: default: - HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, H5_ITER_ERROR, "unknown data object") - } /* end switch */ + HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, H5_ITER_ERROR, "unknown or invalid data object") + } /* end switch */ if((olist->file_info.local && - ( (!olist->file_info.ptr.file && olist->obj_type == H5I_DATATYPE && H5T_is_immutable((H5T_t *)obj_ptr) == FALSE) - || (!olist->file_info.ptr.file && olist->obj_type != H5I_DATATYPE) - || (oloc && oloc->file == olist->file_info.ptr.file))) - || (!olist->file_info.local && - ((!olist->file_info.ptr.shared && olist->obj_type == H5I_DATATYPE && H5T_is_immutable((H5T_t *)obj_ptr) == FALSE) - || (!olist->file_info.ptr.shared && olist->obj_type != H5I_DATATYPE) - || (oloc && oloc->file && oloc->file->shared == olist->file_info.ptr.shared)))) { + ((!olist->file_info.ptr.file && olist->obj_type == H5I_DATATYPE && H5T_is_immutable((H5T_t *)obj_ptr) == FALSE) || + (!olist->file_info.ptr.file && olist->obj_type != H5I_DATATYPE) || + (oloc && oloc->file == olist->file_info.ptr.file))) || + (!olist->file_info.local && + ((!olist->file_info.ptr.shared && olist->obj_type == H5I_DATATYPE && H5T_is_immutable((H5T_t *)obj_ptr) == FALSE) || + (!olist->file_info.ptr.shared && olist->obj_type != H5I_DATATYPE) || + (oloc && oloc->file && oloc->file->shared == olist->file_info.ptr.shared)))) { add_obj = TRUE; - } /* end if */ + } /* end if */ } /* end else */ if(add_obj) { /* Add the object's ID to the ID list, if appropriate */ if(olist->obj_id_list) { olist->obj_id_list[olist->list_index] = obj_id; - olist->list_index++; - } /* end if */ + olist->list_index++; + } /* end if */ /* Increment the number of open objects */ - if(olist->obj_id_count) + if(olist->obj_id_count) (*olist->obj_id_count)++; /* Check if we've filled up the array. Return H5_ITER_STOP only if * we have filled up the array. Otherwise return H5_ITER_CONT(RET_VALUE is - * preset to H5_ITER_CONT) because H5I_iterate needs the return value of + * preset to H5_ITER_CONT) because H5I_iterate needs the return value of * H5_ITER_CONT to continue the iteration. */ if(olist->max_nobjs > 0 && olist->list_index >= olist->max_nobjs) HGOTO_DONE(H5_ITER_STOP) /* Indicate that the iterator should stop */ @@ -502,46 +485,325 @@ done: } /* end H5F_get_objects_cb() */ -/*------------------------------------------------------------------------- - * Function: H5F__is_hdf5 +/*-------------------------------------------------------------------------- + * Function: H5F__build_name * - * Purpose: Check the file signature to detect an HDF5 file. + * Purpose: Prepend PREFIX to FILE_NAME and store in FULL_NAME * - * Bugs: This function is not robust: it only uses the default file - * driver when attempting to open the file when in fact it - * should use all known file drivers. + * Return: Non-negative on success/Negative on failure + *--------------------------------------------------------------------------*/ +static herr_t +H5F__build_name(const char *prefix, const char *file_name, char **full_name/*out*/) +{ + size_t prefix_len; /* length of prefix */ + size_t fname_len; /* Length of external link file name */ + herr_t ret_value = SUCCEED; /* Return value */ + + FUNC_ENTER_STATIC + + prefix_len = HDstrlen(prefix); + fname_len = HDstrlen(file_name); + + /* Allocate a buffer to hold the filename + prefix + possibly the delimiter + terminating null byte */ + if(NULL == (*full_name = (char *)H5MM_malloc(prefix_len + fname_len + 2))) + HGOTO_ERROR(H5E_FILE, H5E_CANTALLOC, FAIL, "unable to allocate filename buffer") + + /* Compose the full file name */ + HDsnprintf(*full_name, (prefix_len + fname_len + 2), "%s%s%s", prefix, + (H5_CHECK_DELIMITER(prefix[prefix_len - 1]) ? "" : H5_DIR_SEPS), file_name); + +done: + FUNC_LEAVE_NOAPI(ret_value) +} /* H5F__build_name() */ + + +/*-------------------------------------------------------------------------- + * Function: H5F__getenv_prefix_name + * + * Purpose: Get the first pathname in the list of pathnames stored in env_prefix, + * which is separated by the environment delimiter. + * env_prefix is modified to point to the remaining pathnames + * in the list. + * + * Return: A pointer to a pathname +--------------------------------------------------------------------------*/ +static char * +H5F__getenv_prefix_name(char **env_prefix/*in,out*/) +{ + char *strret; /* Pointer to next separator */ + char *ret_value = NULL; /* Return value */ + + FUNC_ENTER_STATIC_NOERR + + /* Set return value now */ + ret_value = *env_prefix; + + /* Advance to next component, if possible */ + strret = HDstrchr(*env_prefix, H5_COLON_SEPC); + if(strret == NULL) + *env_prefix = NULL; + else { + /* Advance to next component */ + *env_prefix = strret + 1; + + /* Terminate current component (pointed to by ret_value) */ + *strret = '\0'; + } /* end else */ + + FUNC_LEAVE_NOAPI(ret_value) +} /* end H5F__getenv_prefix_name() */ + + +/*------------------------------------------------------------------------- + * Function: H5F_prefix_open_file * - * Return: Success: TRUE/FALSE + * Purpose: Attempts to open a dataset file. + * + * Return: Pointer to an opened file on success / NULL on failure + *------------------------------------------------------------------------- + */ +H5F_t * +H5F_prefix_open_file(H5F_t *primary_file, H5F_prefix_open_t prefix_type, + const char *prop_prefix, const char *file_name, unsigned file_intent, + hid_t fapl_id) +{ + H5F_t *src_file = NULL; /* Source file */ + char *full_name = NULL; /* File name with prefix */ + char *actual_file_name = NULL; /* File's actual name */ + char *temp_file_name = NULL; /* Temporary pointer to file name */ + size_t temp_file_name_len; /* Length of temporary file name */ + H5F_t *ret_value = NULL; /* Return value */ + + FUNC_ENTER_NOAPI_NOINIT + + /* Simplify intent flags for open calls */ + file_intent &= (H5F_ACC_RDWR | H5F_ACC_SWMR_WRITE | H5F_ACC_SWMR_READ); + + /* Copy the file name to use */ + if(NULL == (temp_file_name = H5MM_strdup(file_name))) + HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, NULL, "memory allocation failed") + temp_file_name_len = HDstrlen(temp_file_name); + + /* Target file_name is an absolute pathname: see RM for detailed description */ + if(H5_CHECK_ABSOLUTE(file_name) || H5_CHECK_ABS_PATH(file_name)) { + /* Try opening file */ + src_file = H5F__efc_open(primary_file, file_name, file_intent, H5P_FILE_CREATE_DEFAULT, fapl_id); + + /* Adjust temporary file name if file not opened */ + if(NULL == src_file) { + char *ptr; + + /* Reset the error stack */ + H5E_clear_stack(NULL); + + /* Get last component of file_name */ + H5_GET_LAST_DELIMITER(file_name, ptr) + HDassert(ptr); + + /* Increment past delimiter */ + ptr++; + + /* Copy into the temp. file name */ + HDstrncpy(temp_file_name, ptr, temp_file_name_len); + temp_file_name[temp_file_name_len - 1] = '\0'; + } /* end if */ + } /* end if */ + else if(H5_CHECK_ABS_DRIVE(file_name)) { + /* Try opening file */ + src_file = H5F__efc_open(primary_file, file_name, file_intent, H5P_FILE_CREATE_DEFAULT, fapl_id); + + /* Adjust temporary file name if file not opened */ + if(NULL == src_file) { + /* Reset the error stack */ + H5E_clear_stack(NULL); + + /* Strip "<drive-letter>:" */ + HDstrncpy(temp_file_name, &file_name[2], temp_file_name_len); + temp_file_name[temp_file_name_len - 1] = '\0'; + } /* end if */ + } /* end if */ + + /* Try searching from paths set in the environment variable */ + if(src_file == NULL) { + char *env_prefix; + + /* Get the appropriate environment variable */ + if(H5F_PREFIX_VDS == prefix_type) + env_prefix = HDgetenv("HDF5_VDS_PREFIX"); + else if(H5F_PREFIX_ELINK == prefix_type) + env_prefix = HDgetenv("HDF5_EXT_PREFIX"); + else + HGOTO_ERROR(H5E_FILE, H5E_BADTYPE, NULL, "prefix type is not sensible") + + /* If environment variable is defined, iterate through prefixes it defines */ + if(NULL != env_prefix) { + char *tmp_env_prefix, *saved_env; + + /* Make a copy of the environment variable string */ + if(NULL == (saved_env = tmp_env_prefix = H5MM_strdup(env_prefix))) + HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, NULL, "memory allocation failed") + + /* Loop over prefixes in environment variable */ + while((tmp_env_prefix) && (*tmp_env_prefix)) { + char *out_prefix_name; + + out_prefix_name = H5F__getenv_prefix_name(&tmp_env_prefix/*in,out*/); + if(out_prefix_name && (*out_prefix_name)) { + if(H5F__build_name(out_prefix_name, temp_file_name, &full_name/*out*/) < 0) { + saved_env = (char *)H5MM_xfree(saved_env); + HGOTO_ERROR(H5E_FILE, H5E_CANTGET, NULL, "can't prepend prefix to filename") + } /* end if */ + + /* Try opening file */ + src_file = H5F__efc_open(primary_file, full_name, file_intent, H5P_FILE_CREATE_DEFAULT, fapl_id); + + /* Release copy of file name */ + full_name = (char *)H5MM_xfree(full_name); + + /* Check for file not opened */ + if(NULL == src_file) + /* Reset the error stack */ + H5E_clear_stack(NULL); + /* Leave if file was opened */ + else + break; + } /* end if */ + } /* end while */ + + saved_env = (char *)H5MM_xfree(saved_env); + } /* end if */ + } /* end if */ + + /* Try searching from property list */ + if(src_file == NULL && prop_prefix) { + /* Construct name to open */ + if(H5F__build_name(prop_prefix, temp_file_name, &full_name/*out*/) < 0) + HGOTO_ERROR(H5E_FILE, H5E_CANTGET, NULL, "can't prepend prefix to filename") + + /* Try opening file */ + src_file = H5F__efc_open(primary_file, full_name, file_intent, H5P_FILE_CREATE_DEFAULT, fapl_id); + + /* Release name */ + full_name = (char *)H5MM_xfree(full_name); + + /* Check for file not opened */ + if(NULL == src_file) + /* Reset the error stack */ + H5E_clear_stack(NULL); + } /* end if */ + + /* Try searching from main file's "extpath": see description in H5F_open() & H5_build_extpath() */ + if(src_file == NULL) { + char *dspath; + + if(NULL != (dspath = H5F_EXTPATH(primary_file))) { + /* Construct name to open */ + if(H5F__build_name(dspath, temp_file_name, &full_name/*out*/) < 0) + HGOTO_ERROR(H5E_FILE, H5E_CANTGET, NULL, "can't prepend prefix to filename") + + /* Try opening file */ + src_file = H5F__efc_open(primary_file, full_name, file_intent, H5P_FILE_CREATE_DEFAULT, fapl_id); + + /* Release name */ + full_name = (char *)H5MM_xfree(full_name); + + /* Check for file not opened */ + if(NULL == src_file) + /* Reset the error stack */ + H5E_clear_stack(NULL); + } /* end if */ + } /* end if */ + + /* Try the relative file_name stored in temp_file_name */ + if(src_file == NULL) { + /* Try opening file */ + src_file = H5F__efc_open(primary_file, temp_file_name, file_intent, H5P_FILE_CREATE_DEFAULT, fapl_id); + + /* Check for file not opened */ + if(NULL == src_file) + /* Reset the error stack */ + H5E_clear_stack(NULL); + } /* end if */ + + /* try the 'resolved' name for the virtual file */ + if(src_file == NULL) { + char *ptr = NULL; + + /* Copy resolved file name */ + if(NULL == (actual_file_name = H5MM_strdup(H5F_ACTUAL_NAME(primary_file)))) + HGOTO_ERROR(H5E_FILE, H5E_CANTALLOC, NULL, "can't duplicate resolved file name string") + + /* get last component of file_name */ + H5_GET_LAST_DELIMITER(actual_file_name, ptr) + if(!ptr) + HGOTO_ERROR(H5E_FILE, H5E_CANTOPENFILE, NULL, "unable to open file, file name = '%s', temp_file_name = '%s'", file_name, temp_file_name) + + /* Truncate filename portion from actual file name path */ + *ptr = '\0'; + + /* Build new file name for the external file */ + if(H5F__build_name(actual_file_name, temp_file_name, &full_name/*out*/) < 0) + HGOTO_ERROR(H5E_FILE, H5E_CANTGET, NULL, "can't prepend prefix to filename") + actual_file_name = (char *)H5MM_xfree(actual_file_name); + + /* Try opening with the resolved name */ + src_file = H5F__efc_open(primary_file, full_name, file_intent, H5P_FILE_CREATE_DEFAULT, fapl_id); + + /* Release name */ + full_name = (char *)H5MM_xfree(full_name); + + /* Check for file not opened */ + if(NULL == src_file) + /* Reset the error stack */ + H5E_clear_stack(NULL); + } /* end if */ + + /* Success */ + ret_value = src_file; + +done: + if((NULL == ret_value) && src_file) + if(H5F_efc_close(primary_file, src_file) < 0) + HDONE_ERROR(H5E_FILE, H5E_CANTCLOSEFILE, NULL, "can't close source file") + if(full_name) + full_name = (char *)H5MM_xfree(full_name); + if(temp_file_name) + temp_file_name = (char *)H5MM_xfree(temp_file_name); + if(actual_file_name) + actual_file_name = (char *)H5MM_xfree(actual_file_name); + + FUNC_LEAVE_NOAPI(ret_value) +} /* H5F_prefix_open_file() */ + + +/*------------------------------------------------------------------------- + * Function: H5F__is_hdf5 * - * Failure: Negative + * Purpose: Check the file signature to detect an HDF5 file. * - * Programmer: Unknown + * Bugs: This function is not robust: it only uses the default file + * driver when attempting to open the file when in fact it + * should use all known file drivers. * + * Return: Success: TRUE/FALSE + * * Failure: Negative *------------------------------------------------------------------------- */ htri_t -H5F__is_hdf5(const char *name, hid_t meta_dxpl_id, hid_t raw_dxpl_id) +H5F__is_hdf5(const char *name) { - H5FD_t *file = NULL; /* Low-level file struct */ - H5FD_io_info_t fdio_info; /* File driver I/O info */ - haddr_t sig_addr; /* Addess of hdf5 file signature */ - htri_t ret_value = FAIL; /* Return value */ + H5FD_t *file = NULL; /* Low-level file struct */ + haddr_t sig_addr; /* Addess of hdf5 file signature */ + htri_t ret_value = FAIL; /* Return value */ - FUNC_ENTER_NOAPI_NOINIT + FUNC_ENTER_PACKAGE_VOL /* Open the file at the virtual file layer */ if(NULL == (file = H5FD_open(name, H5F_ACC_RDONLY, H5P_FILE_ACCESS_DEFAULT, HADDR_UNDEF))) - HGOTO_ERROR(H5E_IO, H5E_CANTINIT, FAIL, "unable to open file") - - /* Set up the file driver info */ - fdio_info.file = file; - if(NULL == (fdio_info.meta_dxpl = (H5P_genplist_t *)H5I_object(meta_dxpl_id))) - HGOTO_ERROR(H5E_CACHE, H5E_BADATOM, FAIL, "can't get new property list object") - if(NULL == (fdio_info.raw_dxpl = (H5P_genplist_t *)H5I_object(raw_dxpl_id))) - HGOTO_ERROR(H5E_CACHE, H5E_BADATOM, FAIL, "can't get new property list object") + HGOTO_ERROR(H5E_IO, H5E_CANTINIT, FAIL, "unable to open file") /* The file is an hdf5 file if the hdf5 file signature can be found */ - if(H5FD_locate_signature(&fdio_info, &sig_addr) < 0) + if(H5FD_locate_signature(file, &sig_addr) < 0) HGOTO_ERROR(H5E_FILE, H5E_NOTHDF5, FAIL, "unable to locate file signature") ret_value = (HADDR_UNDEF != sig_addr); @@ -551,36 +813,28 @@ done: if(H5FD_close(file) < 0 && ret_value >= 0) HDONE_ERROR(H5E_IO, H5E_CANTCLOSEFILE, FAIL, "unable to close file") - FUNC_LEAVE_NOAPI(ret_value) + FUNC_LEAVE_NOAPI_VOL(ret_value) } /* end H5F__is_hdf5() */ /*------------------------------------------------------------------------- - * Function: H5F_new - * - * Purpose: Creates a new file object and initializes it. The - * H5Fopen and H5Fcreate functions then fill in various - * fields. If SHARED is a non-null pointer then the shared info - * to which it points has the reference count incremented. - * Otherwise a new, empty shared info struct is created and - * initialized with the specified file access property list. - * - * Errors: - * - * Return: Success: Ptr to a new file struct. + * Function: H5F_new * - * Failure: NULL - * - * Programmer: Robb Matzke - * matzke@llnl.gov - * Jul 18 1997 + * Purpose: Creates a new file object and initializes it. The + * H5Fopen and H5Fcreate functions then fill in various fields. + * If SHARED is a non-null pointer then the shared info + * to which it points has the reference count incremented. + * Otherwise a new, empty shared info struct is created and + * initialized with the specified file access property list. * + * Return: Success: Ptr to a new file struct. + * Failure: NULL *------------------------------------------------------------------------- */ H5F_t * H5F_new(H5F_file_t *shared, unsigned flags, hid_t fcpl_id, hid_t fapl_id, H5FD_t *lf) { - H5F_t *f = NULL, *ret_value = NULL; + H5F_t *f = NULL, *ret_value = NULL; FUNC_ENTER_NOAPI_NOINIT @@ -594,8 +848,7 @@ H5F_new(H5F_file_t *shared, unsigned flags, hid_t fcpl_id, hid_t fapl_id, H5FD_t } /* end if */ else { H5P_genplist_t *plist; /* Property list */ - unsigned efc_size; /* External file cache size */ - hbool_t latest_format; /* Always use the latest format? */ + unsigned efc_size; /* External file cache size */ size_t u; /* Local index variable */ HDassert(lf != NULL); @@ -652,7 +905,7 @@ H5F_new(H5F_file_t *shared, unsigned flags, hid_t fcpl_id, hid_t fapl_id, H5FD_t HGOTO_ERROR(H5E_PLIST, H5E_CANTGET, NULL, "can't get file space page size") HDassert(f->shared->fs_page_size >= H5F_FILE_SPACE_PAGE_SIZE_MIN); - /* Temporary for multi/split drivers: fail file creation + /* Temporary for multi/split drivers: fail file creation when persisting free-space or using paged aggregation strategy */ if(H5F_HAS_FEATURE(f, H5FD_FEAT_PAGED_AGGR)) if(f->shared->fs_strategy == H5F_FSPACE_STRATEGY_PAGE || f->shared->fs_persist) @@ -677,11 +930,10 @@ H5F_new(H5F_file_t *shared, unsigned flags, hid_t fcpl_id, hid_t fapl_id, H5FD_t HGOTO_ERROR(H5E_PLIST, H5E_CANTGET, NULL, "can't get garbage collect reference") if(H5P_get(plist, H5F_ACS_SIEVE_BUF_SIZE_NAME, &(f->shared->sieve_buf_size)) < 0) HGOTO_ERROR(H5E_PLIST, H5E_CANTGET, NULL, "can't get sieve buffer size") - if(H5P_get(plist, H5F_ACS_LATEST_FORMAT_NAME, &latest_format) < 0) - HGOTO_ERROR(H5E_PLIST, H5E_CANTGET, NULL, "can't get 'latest format' flag") - /* For latest format or SWMR_WRITE, activate all latest version support */ - if(latest_format || (H5F_INTENT(f) & H5F_ACC_SWMR_WRITE)) - f->shared->latest_flags |= H5F_LATEST_ALL_FLAGS; + if(H5P_get(plist, H5F_ACS_LIBVER_LOW_BOUND_NAME, &(f->shared->low_bound)) < 0) + HGOTO_ERROR(H5E_PLIST, H5E_CANTGET, NULL, "can't get 'low' bound for library format versions") + if(H5P_get(plist, H5F_ACS_LIBVER_HIGH_BOUND_NAME, &(f->shared->high_bound)) < 0) + HGOTO_ERROR(H5E_PLIST, H5E_CANTGET, NULL, "can't get 'high' bound for library format versions") if(H5P_get(plist, H5F_ACS_USE_MDC_LOGGING_NAME, &(f->shared->use_mdc_logging)) < 0) HGOTO_ERROR(H5E_PLIST, H5E_CANTGET, NULL, "can't get 'use mdc logging' flag") if(H5P_get(plist, H5F_ACS_START_MDC_LOG_ON_ACCESS_NAME, &(f->shared->start_mdc_log_on_access)) < 0) @@ -717,10 +969,6 @@ H5F_new(H5F_file_t *shared, unsigned flags, hid_t fcpl_id, hid_t fapl_id, H5FD_t if(!H5F_HAS_FEATURE(f, H5FD_FEAT_SUPPORTS_SWMR_IO) && (H5F_INTENT(f) & (H5F_ACC_SWMR_WRITE | H5F_ACC_SWMR_READ))) HGOTO_ERROR(H5E_FILE, H5E_BADVALUE, NULL, "must use a SWMR-compatible VFD when SWMR is specified") - /* Require a POSIX compatible VFD to use SWMR feature */ - /* (It's reasonable to try to expand this to other VFDs eventually -QAK) */ - if(!H5F_HAS_FEATURE(f, H5FD_FEAT_POSIX_COMPAT_HANDLE) && (H5F_INTENT(f) & (H5F_ACC_SWMR_WRITE | H5F_ACC_SWMR_READ))) - HGOTO_ERROR(H5E_FILE, H5E_BADVALUE, NULL, "must use POSIX compatible VFD with SWMR write access") if(H5FD_get_fs_type_map(lf, f->shared->fs_type_map) < 0) HGOTO_ERROR(H5E_FILE, H5E_CANTGET, NULL, "can't get free space type mapping from VFD") if(H5MF_init_merge_flags(f) < 0) @@ -814,7 +1062,7 @@ done: if(!shared) { /* Attempt to clean up some of the shared file structures */ if(f->shared->efc) - if(H5F_efc_destroy(f->shared->efc) < 0) + if(H5F__efc_destroy(f->shared->efc) < 0) HDONE_ERROR(H5E_FILE, H5E_CANTRELEASE, NULL, "can't destroy external file cache") if(f->shared->fcpl_id > 0) if(H5I_dec_ref(f->shared->fcpl_id) < 0) @@ -830,25 +1078,20 @@ done: /*------------------------------------------------------------------------- - * Function: H5F__dest - * - * Purpose: Destroys a file structure. This function flushes the cache - * but doesn't do any other cleanup other than freeing memory - * for the file struct. The shared info for the file is freed - * only when its reference count reaches zero. + * Function: H5F__dest * - * Return: Non-negative on success/Negative on failure - * - * Programmer: Robb Matzke - * matzke@llnl.gov - * Jul 18 1997 + * Purpose: Destroys a file structure. This function flushes the cache + * but doesn't do any other cleanup other than freeing memory + * for the file struct. The shared info for the file is freed + * only when its reference count reaches zero. * + * Return: Non-negative on success/Negative on failure *------------------------------------------------------------------------- */ herr_t -H5F__dest(H5F_t *f, hid_t meta_dxpl_id, hid_t raw_dxpl_id, hbool_t flush) +H5F__dest(H5F_t *f, hbool_t flush) { - herr_t ret_value = SUCCEED; /* Return value */ + herr_t ret_value = SUCCEED; /* Return value */ FUNC_ENTER_PACKAGE @@ -858,22 +1101,21 @@ H5F__dest(H5F_t *f, hid_t meta_dxpl_id, hid_t raw_dxpl_id, hbool_t flush) if(1 == f->shared->nrefs) { int actype; /* metadata cache type (enum value) */ - H5F_io_info2_t fio_info; /* I/O info for operation */ /* Flush at this point since the file will be closed (phase 1). * Only try to flush the file if it was opened with write access, and if * the caller requested a flush. */ if((H5F_ACC_RDWR & H5F_INTENT(f)) && flush) - if(H5F__flush_phase1(f, meta_dxpl_id) < 0) + if(H5F__flush_phase1(f) < 0) /* Push error, but keep going*/ HDONE_ERROR(H5E_FILE, H5E_CANTFLUSH, FAIL, "unable to flush cached data (phase 1)") /* Notify the metadata cache that the file is about to be closed. - * This allows the cache to set up for creating a metadata cache + * This allows the cache to set up for creating a metadata cache * image if this has been requested. */ - if(H5AC_prep_for_file_close(f, meta_dxpl_id) < 0) + if(H5AC_prep_for_file_close(f) < 0) /* Push error, but keep going */ HDONE_ERROR(H5E_FILE, H5E_CANTFLUSH, FAIL, "metadata cache prep for close failed") @@ -882,12 +1124,12 @@ H5F__dest(H5F_t *f, hid_t meta_dxpl_id, hid_t raw_dxpl_id, hbool_t flush) * the caller requested a flush. */ if((H5F_ACC_RDWR & H5F_INTENT(f)) && flush) - if(H5F__flush_phase2(f, meta_dxpl_id, raw_dxpl_id, TRUE) < 0) + if(H5F__flush_phase2(f, TRUE) < 0) /* Push error, but keep going */ HDONE_ERROR(H5E_FILE, H5E_CANTFLUSH, FAIL, "unable to flush cached data (phase 2)") /* With the shutdown modifications, the contents of the metadata cache - * should be clean at this point, with the possible exception of the + * should be clean at this point, with the possible exception of the * the superblock and superblock extension. * * Verify this. @@ -896,7 +1138,7 @@ H5F__dest(H5F_t *f, hid_t meta_dxpl_id, hid_t raw_dxpl_id, hbool_t flush) /* Release the external file cache */ if(f->shared->efc) { - if(H5F_efc_destroy(f->shared->efc) < 0) + if(H5F__efc_destroy(f->shared->efc) < 0) /* Push error, but keep going*/ HDONE_ERROR(H5E_FILE, H5E_CANTRELEASE, FAIL, "can't destroy external file cache") f->shared->efc = NULL; @@ -913,10 +1155,10 @@ H5F__dest(H5F_t *f, hid_t meta_dxpl_id, hid_t raw_dxpl_id, hbool_t flush) /* Release objects that depend on the superblock being initialized */ if(f->shared->sblock) { /* Shutdown file free space manager(s) */ - /* (We should release the free space information now (before - * truncating the file and before the metadata cache is shut - * down) since the free space manager is holding some data - * structures in memory and also because releasing free space + /* (We should release the free space information now (before + * truncating the file and before the metadata cache is shut + * down) since the free space manager is holding some data + * structures in memory and also because releasing free space * can shrink the file's 'eoa' value) * * Update 11/1/16: @@ -929,7 +1171,7 @@ H5F__dest(H5F_t *f, hid_t meta_dxpl_id, hid_t raw_dxpl_id, hbool_t flush) * -- JRM */ if(H5F_ACC_RDWR & H5F_INTENT(f)) { - if(H5MF_close(f, meta_dxpl_id) < 0) + if(H5MF_close(f) < 0) /* Push error, but keep going*/ HDONE_ERROR(H5E_FILE, H5E_CANTRELEASE, FAIL, "can't release file free space info") @@ -942,28 +1184,28 @@ H5F__dest(H5F_t *f, hid_t meta_dxpl_id, hid_t raw_dxpl_id, hbool_t flush) * free space manager may dirty some data structures again. */ if(flush) { - /* Clear status_flags */ + /* Clear status_flags */ f->shared->sblock->status_flags &= (uint8_t)(~H5F_SUPER_WRITE_ACCESS); f->shared->sblock->status_flags &= (uint8_t)(~H5F_SUPER_SWMR_WRITE_ACCESS); /* Mark EOA info dirty in cache, so change will get encoded */ - if(H5F_eoa_dirty(f, meta_dxpl_id) < 0) + if(H5F_eoa_dirty(f) < 0) /* Push error, but keep going*/ HDONE_ERROR(H5E_FILE, H5E_CANTMARKDIRTY, FAIL, "unable to mark superblock as dirty") - /* Release any space allocated to space aggregators, - * so that the eoa value corresponds to the end of the + /* Release any space allocated to space aggregators, + * so that the eoa value corresponds to the end of the * space written to in the file. * * At most, this should change the superblock or the * superblock extension messages. */ - if(H5MF_free_aggrs(f, meta_dxpl_id) < 0) + if(H5MF_free_aggrs(f) < 0) /* Push error, but keep going*/ HDONE_ERROR(H5E_FILE, H5E_CANTRELEASE, FAIL, "can't release file space") /* Truncate the file to the current allocated size */ - if(H5FD_truncate(f->shared->lf, meta_dxpl_id, TRUE) < 0) + if(H5FD_truncate(f->shared->lf, TRUE) < 0) /* Push error, but keep going*/ HDONE_ERROR(H5E_FILE, H5E_WRITEERROR, FAIL, "low level truncate failed") @@ -971,11 +1213,11 @@ H5F__dest(H5F_t *f, hid_t meta_dxpl_id, hid_t raw_dxpl_id, hbool_t flush) * extension should be dirty. */ HDassert(H5AC_cache_is_clean(f, H5AC_RING_MDFSM)); - } /* end if */ + } /* end if */ } /* end if */ /* if it exists, unpin the driver information block cache entry, - * since we're about to destroy the cache + * since we're about to destroy the cache */ if(f->shared->drvinfo) if(H5AC_unpin_entry(f->shared->drvinfo) < 0) @@ -995,26 +1237,22 @@ H5F__dest(H5F_t *f, hid_t meta_dxpl_id, hid_t raw_dxpl_id, hbool_t flush) * Verify this. */ HDassert(H5AC_cache_is_clean(f, H5AC_RING_MDFSM)); - + /* Remove shared file struct from list of open files */ if(H5F_sfile_remove(f->shared) < 0) /* Push error, but keep going*/ HDONE_ERROR(H5E_FILE, H5E_CANTRELEASE, FAIL, "problems closing file") /* Shutdown the metadata cache */ - if(H5AC_dest(f, meta_dxpl_id)) + /* (Flushes any remaining dirty entries, which should only be the + * superblock and / or driver info at this point) + */ + if(H5AC_dest(f)) /* Push error, but keep going*/ HDONE_ERROR(H5E_FILE, H5E_CANTRELEASE, FAIL, "problems closing file") - /* Set up I/O info for operation */ - fio_info.f = f; - if(NULL == (fio_info.meta_dxpl = (H5P_genplist_t *)H5I_object(meta_dxpl_id))) - HDONE_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "can't get property list") - if(NULL == (fio_info.raw_dxpl = (H5P_genplist_t *)H5I_object(H5AC_rawdata_dxpl_id))) - HDONE_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "can't get property list") - /* Shutdown the page buffer cache */ - if(H5PB_dest(&fio_info) < 0) + if(H5PB_dest(f) < 0) /* Push error, but keep going*/ HDONE_ERROR(H5E_FILE, H5E_CANTRELEASE, FAIL, "problems closing page buffer cache") @@ -1035,7 +1273,7 @@ H5F__dest(H5F_t *f, hid_t meta_dxpl_id, hid_t raw_dxpl_id, hbool_t flush) } /* end if */ /* Destroy other components of the file */ - if(H5F__accum_reset(&fio_info, TRUE) < 0) + if(H5F__accum_reset(f, TRUE) < 0) /* Push error, but keep going*/ HDONE_ERROR(H5E_FILE, H5E_CANTRELEASE, FAIL, "problems closing file") if(H5FO_dest(f) < 0) @@ -1071,7 +1309,8 @@ H5F__dest(H5F_t *f, hid_t meta_dxpl_id, hid_t raw_dxpl_id, hbool_t flush) /* Destroy shared file struct */ f->shared = (H5F_file_t *)H5FL_FREE(H5F_file_t, f->shared); - } else if(f->shared->nrefs > 0) { + } + else if(f->shared->nrefs > 0) { /* * There are other references to the shared part of the file. * Only decrement the reference count. @@ -1089,46 +1328,118 @@ H5F__dest(H5F_t *f, hid_t meta_dxpl_id, hid_t raw_dxpl_id, hbool_t flush) f = H5FL_FREE(H5F_t, f); FUNC_LEAVE_NOAPI(ret_value) -} /* end H5F_dest() */ +} /* end H5F__dest() */ /*------------------------------------------------------------------------- - * Function: H5F_open + * Function: H5F__create + * + * Purpose: Internal routine to create a file. * - * Purpose: Opens (or creates) a file. This function understands the - * following flags which are similar in nature to the Posix - * open(2) flags. + * Note: This routine is needed so that there's a non-API routine for + * creating files that can set up VOL / SWMR info + * (which need a DXPL). * - * H5F_ACC_RDWR: Open with read/write access. If the file is - * currently open for read-only access then it - * will be reopened. Absence of this flag - * implies read-only access. + * Return: Success: Non-NULL, pointer to new file object. + * Failure: NULL * - * H5F_ACC_CREAT: Create a new file if it doesn't exist yet. - * The permissions are 0666 bit-wise AND with - * the current umask. H5F_ACC_WRITE must also - * be specified. + * Programmer: Quincey Koziol + * December 13, 2017 * - * H5F_ACC_EXCL: This flag causes H5F_open() to fail if the - * file already exists. + *------------------------------------------------------------------------- + */ +H5F_t * +H5F__create(const char *filename, unsigned flags, hid_t fcpl_id, hid_t fapl_id) +{ + H5F_t *ret_value = NULL; /* Return value */ + + FUNC_ENTER_PACKAGE_VOL + + /* Sanity check */ + HDassert(filename); + + /* Create a new file or truncate an existing file. */ + if(NULL == (ret_value = H5F_open(filename, flags, fcpl_id, fapl_id))) + HGOTO_ERROR(H5E_FILE, H5E_CANTOPENFILE, NULL, "unable to open file") + +done: + FUNC_LEAVE_NOAPI_VOL(ret_value) +} /* end H5F__create() */ + + +/*------------------------------------------------------------------------- + * Function: H5F__open * - * H5F_ACC_TRUNC: The file is truncated and a new HDF5 superblock - * is written. This operation will fail if the - * file is already open. + * Purpose: Internal routine to open a file. * - * Unlinking the file name from the group directed graph while - * the file is opened causes the file to continue to exist but - * one will not be able to upgrade the file from read-only - * access to read-write access by reopening it. Disk resources - * for the file are released when all handles to the file are - * closed. NOTE: This paragraph probably only applies to Unix; - * deleting the file name in other OS's has undefined results. + * Note: This routine is needed so that there's a non-API routine for + * opening files that can set up VOL / SWMR info + * (which need a DXPL). * - * The CREATE_PARMS argument is optional. A null pointer will - * cause the default file creation parameters to be used. + * Return: Success: Non-NULL, pointer to new file object. + * Failure: NULL * - * The ACCESS_PARMS argument is optional. A null pointer will - * cause the default file access parameters to be used. + * Programmer: Quincey Koziol + * December 13, 2017 + * + *------------------------------------------------------------------------- + */ +H5F_t * +H5F__open(const char *filename, unsigned flags, hid_t fcpl_id, hid_t fapl_id) +{ + H5F_t *ret_value = NULL; /* Return value */ + + FUNC_ENTER_PACKAGE_VOL + + /* Sanity check */ + HDassert(filename); + + /* Open the file */ + if(NULL == (ret_value = H5F_open(filename, flags, fcpl_id, fapl_id))) + HGOTO_ERROR(H5E_FILE, H5E_CANTOPENFILE, NULL, "unable to open file") + +done: + FUNC_LEAVE_NOAPI_VOL(ret_value) +} /* end H5F__open() */ + + +/*------------------------------------------------------------------------- + * Function: H5F_open + * + * Purpose: Opens (or creates) a file. This function understands the + * following flags which are similar in nature to the Posix + * open(2) flags. + * + * H5F_ACC_RDWR: Open with read/write access. If the file is + * currently open for read-only access then it + * will be reopened. Absence of this flag + * implies read-only access. + * + * H5F_ACC_CREAT: Create a new file if it doesn't exist yet. + * The permissions are 0666 bit-wise AND with + * the current umask. H5F_ACC_WRITE must also + * be specified. + * + * H5F_ACC_EXCL: This flag causes H5F_open() to fail if the + * file already exists. + * + * H5F_ACC_TRUNC: The file is truncated and a new HDF5 superblock + * is written. This operation will fail if the + * file is already open. + * + * Unlinking the file name from the group directed graph while + * the file is opened causes the file to continue to exist but + * one will not be able to upgrade the file from read-only + * access to read-write access by reopening it. Disk resources + * for the file are released when all handles to the file are + * closed. NOTE: This paragraph probably only applies to Unix; + * deleting the file name in other OS's has undefined results. + * + * The CREATE_PARMS argument is optional. A null pointer will + * cause the default file creation parameters to be used. + * + * The ACCESS_PARMS argument is optional. A null pointer will + * cause the default file access parameters to be used. * * The following two tables show results of file opens for single and concurrent access: * @@ -1161,17 +1472,12 @@ H5F__dest(H5F_t *f, hid_t meta_dxpl_id, hid_t raw_dxpl_id, hbool_t flush) * s: the open succeeds with flags combination from both the first and second opens * * - * Return: Success: A new file pointer. - * Failure: NULL - * - * Programmer: Robb Matzke - * Tuesday, September 23, 1997 - * + * Return: Success: A new file pointer. + * Failure: NULL *------------------------------------------------------------------------- */ H5F_t * -H5F_open(const char *name, unsigned flags, hid_t fcpl_id, hid_t fapl_id, - hid_t meta_dxpl_id) +H5F_open(const char *name, unsigned flags, hid_t fcpl_id, hid_t fapl_id) { H5F_t *file = NULL; /*the success return value */ H5F_file_t *shared = NULL; /*shared part of `file' */ @@ -1180,16 +1486,17 @@ H5F_open(const char *name, unsigned flags, hid_t fcpl_id, hid_t fapl_id, H5FD_class_t *drvr; /*file driver class info */ H5P_genplist_t *a_plist; /*file access property list */ H5F_close_degree_t fc_degree; /*file close degree */ - hid_t raw_dxpl_id = H5AC_rawdata_dxpl_id; /* Raw data dxpl used by library */ size_t page_buf_size; unsigned page_buf_min_meta_perc; unsigned page_buf_min_raw_perc; hbool_t set_flag = FALSE; /*set the status_flags in the superblock */ - hbool_t clear = FALSE; /*clear the status_flags */ + hbool_t clear = FALSE; /*clear the status_flags */ hbool_t evict_on_close; /* evict on close value from plist */ - H5F_t *ret_value = NULL; /*actual return value */ char *lock_env_var = NULL;/*env var pointer */ hbool_t use_file_locking; /*read from env var */ + hbool_t ci_load = FALSE; /* whether MDC ci load requested */ + hbool_t ci_write = FALSE; /* whether MDC CI write requested */ + H5F_t *ret_value = NULL; /*actual return value */ FUNC_ENTER_NOAPI(NULL) @@ -1212,7 +1519,7 @@ H5F_open(const char *name, unsigned flags, hid_t fcpl_id, hid_t fapl_id, if(lock_env_var && !HDstrcmp(lock_env_var, "FALSE")) use_file_locking = FALSE; else - use_file_locking = TRUE; + use_file_locking = TRUE; /* * Opening a file is a two step process. First we try to open the @@ -1301,8 +1608,8 @@ H5F_open(const char *name, unsigned flags, hid_t fcpl_id, hid_t fapl_id, /* Place an advisory lock on the file */ if(use_file_locking) if(H5FD_lock(lf, (hbool_t)((flags & H5F_ACC_RDWR) ? TRUE : FALSE)) < 0) { - /* Locking failed - Closing will remove the lock */ - if(H5FD_close(lf) < 0) + /* Locking failed - Closing will remove the lock */ + if(H5FD_close(lf) < 0) HDONE_ERROR(H5E_FILE, H5E_CANTOPENFILE, NULL, "unable to close low-level file info") HGOTO_ERROR(H5E_FILE, H5E_CANTOPENFILE, NULL, "unable to lock the file") } /* end if */ @@ -1313,7 +1620,7 @@ H5F_open(const char *name, unsigned flags, hid_t fcpl_id, hid_t fapl_id, * returned is NULL, H5FD_close() will never be called via H5F_dest() * so we have to close lf here before heading to the error handling. */ - if(H5FD_close(lf) < 0) + if(H5FD_close(lf) < 0) HDONE_ERROR(H5E_FILE, H5E_CANTOPENFILE, NULL, "unable to close low-level file info") HGOTO_ERROR(H5E_FILE, H5E_CANTOPENFILE, NULL, "unable to initialize file structure") } /* end if */ @@ -1323,6 +1630,12 @@ H5F_open(const char *name, unsigned flags, hid_t fcpl_id, hid_t fapl_id, set_flag = TRUE; } /* end else */ + /* Check to see if both SWMR and cache image are requested. Fail if so */ + if(H5C_cache_image_status(file, &ci_load, &ci_write) < 0) + HGOTO_ERROR(H5E_FILE, H5E_CANTGET, NULL, "can't get MDC cache image status") + if((ci_load || ci_write) && (flags & (H5F_ACC_SWMR_READ | H5F_ACC_SWMR_WRITE))) + HGOTO_ERROR(H5E_FILE, H5E_UNSUPPORTED, NULL, "can't have both SWMR and cache image") + /* Retain the name the file was opened with */ file->open_name = H5MM_xstrdup(name); @@ -1370,19 +1683,19 @@ H5F_open(const char *name, unsigned flags, hid_t fcpl_id, hid_t fapl_id, /* Initialize information about the superblock and allocate space for it */ /* (Writes superblock extension messages, if there are any) */ - if(H5F__super_init(file, meta_dxpl_id) < 0) + if(H5F__super_init(file) < 0) HGOTO_ERROR(H5E_FILE, H5E_CANTINIT, NULL, "unable to allocate file superblock") /* Create and open the root group */ /* (This must be after the space for the superblock is allocated in * the file, since the superblock must be at offset 0) */ - if(H5G_mkroot(file, meta_dxpl_id, TRUE) < 0) + if(H5G_mkroot(file, TRUE) < 0) HGOTO_ERROR(H5E_FILE, H5E_CANTINIT, NULL, "unable to create/open root group") } /* end if */ else if (1 == shared->nrefs) { /* Read the superblock if it hasn't been read before. */ - if(H5F__super_read(file, meta_dxpl_id, raw_dxpl_id, TRUE) < 0) + if(H5F__super_read(file, a_plist, TRUE) < 0) HGOTO_ERROR(H5E_FILE, H5E_READERROR, NULL, "unable to read superblock") /* Create the page buffer before initializing the superblock */ @@ -1391,7 +1704,7 @@ H5F_open(const char *name, unsigned flags, hid_t fcpl_id, hid_t fapl_id, HGOTO_ERROR(H5E_FILE, H5E_CANTINIT, NULL, "unable to create page buffer") /* Open the root group */ - if(H5G_mkroot(file, meta_dxpl_id, FALSE) < 0) + if(H5G_mkroot(file, FALSE) < 0) HGOTO_ERROR(H5E_FILE, H5E_CANTOPENFILE, NULL, "unable to read root group") } /* end if */ @@ -1462,14 +1775,16 @@ H5F_open(const char *name, unsigned flags, hid_t fcpl_id, hid_t fapl_id, if(H5F_INTENT(file) & H5F_ACC_SWMR_WRITE) file->shared->sblock->status_flags |= H5F_SUPER_SWMR_WRITE_ACCESS; - /* Flush the superblock */ + /* Flush the superblock & superblock extension */ if(H5F_super_dirty(file) < 0) HGOTO_ERROR(H5E_FILE, H5E_CANTMARKDIRTY, NULL, "unable to mark superblock as dirty") - if(H5F_flush_tagged_metadata(file, H5AC__SUPERBLOCK_TAG, meta_dxpl_id) < 0) + if(H5F_flush_tagged_metadata(file, H5AC__SUPERBLOCK_TAG) < 0) HGOTO_ERROR(H5E_FILE, H5E_CANTFLUSH, NULL, "unable to flush superblock") + if(H5F_flush_tagged_metadata(file, file->shared->sblock->ext_addr) < 0) + HGOTO_ERROR(H5E_FILE, H5E_CANTFLUSH, NULL, "unable to flush superblock extension") /* Remove the file lock for SWMR_WRITE */ - if(use_file_locking && (H5F_INTENT(file) & H5F_ACC_SWMR_WRITE)) { + if(use_file_locking && (H5F_INTENT(file) & H5F_ACC_SWMR_WRITE)) { if(H5FD_unlock(file->shared->lf) < 0) HGOTO_ERROR(H5E_FILE, H5E_CANTOPENFILE, NULL, "unable to unlock the file") } /* end if */ @@ -1477,11 +1792,11 @@ H5F_open(const char *name, unsigned flags, hid_t fcpl_id, hid_t fapl_id, else { /* H5F_ACC_RDONLY: check consistency of status_flags */ /* Skip check of status_flags for file with < superblock version 3 */ if(file->shared->sblock->super_vers >= HDF5_SUPERBLOCK_VERSION_3) { - if(H5F_INTENT(file) & H5F_ACC_SWMR_READ) { - if((file->shared->sblock->status_flags & H5F_SUPER_WRITE_ACCESS && + if(H5F_INTENT(file) & H5F_ACC_SWMR_READ) { + if((file->shared->sblock->status_flags & H5F_SUPER_WRITE_ACCESS && !(file->shared->sblock->status_flags & H5F_SUPER_SWMR_WRITE_ACCESS)) - || - (!(file->shared->sblock->status_flags & H5F_SUPER_WRITE_ACCESS) && + || + (!(file->shared->sblock->status_flags & H5F_SUPER_WRITE_ACCESS) && file->shared->sblock->status_flags & H5F_SUPER_SWMR_WRITE_ACCESS)) HGOTO_ERROR(H5E_FILE, H5E_CANTOPENFILE, NULL, "file is not already open for SWMR writing") } /* end if */ @@ -1497,27 +1812,23 @@ H5F_open(const char *name, unsigned flags, hid_t fcpl_id, hid_t fapl_id, done: if((NULL == ret_value) && file) - if(H5F__dest(file, meta_dxpl_id, raw_dxpl_id, FALSE) < 0) + if(H5F__dest(file, FALSE) < 0) HDONE_ERROR(H5E_FILE, H5E_CANTCLOSEFILE, NULL, "problems closing file") + FUNC_LEAVE_NOAPI(ret_value) } /* end H5F_open() */ /*------------------------------------------------------------------------- - * Function: H5F_flush_phase1 + * Function: H5F_flush_phase1 * - * Purpose: First phase of flushing cached data. - * - * Return: Non-negative on success/Negative on failure - * - * Programmer: Quincey Koziol - * koziol@lbl.gov - * Jan 1 2017 + * Purpose: First phase of flushing cached data. * + * Return: Non-negative on success/Negative on failure *------------------------------------------------------------------------- */ static herr_t -H5F__flush_phase1(H5F_t *f, hid_t meta_dxpl_id) +H5F__flush_phase1(H5F_t *f) { herr_t ret_value = SUCCEED; /* Return value */ @@ -1527,7 +1838,7 @@ H5F__flush_phase1(H5F_t *f, hid_t meta_dxpl_id) HDassert(f); /* Flush any cached dataset storage raw data */ - if(H5D_flush(f, meta_dxpl_id) < 0) + if(H5D_flush_all(f) < 0) /* Push error, but keep going*/ HDONE_ERROR(H5E_CACHE, H5E_CANTFLUSH, FAIL, "unable to flush dataset cache") @@ -1537,7 +1848,7 @@ H5F__flush_phase1(H5F_t *f, hid_t meta_dxpl_id) /* (needs to happen before cache flush, with superblock write, since the * 'eoa' value is written in superblock -QAK) */ - if(H5MF_free_aggrs(f, meta_dxpl_id) < 0) + if(H5MF_free_aggrs(f) < 0) /* Push error, but keep going*/ HDONE_ERROR(H5E_FILE, H5E_CANTRELEASE, FAIL, "can't release file space") @@ -1546,22 +1857,16 @@ H5F__flush_phase1(H5F_t *f, hid_t meta_dxpl_id) /*------------------------------------------------------------------------- - * Function: H5F__flush_phase2 - * - * Purpose: Second phase of flushing cached data. - * - * Return: Non-negative on success/Negative on failure + * Function: H5F__flush_phase2 * - * Programmer: Quincey Koziol - * koziol@lbl.gov - * Jan 1 2017 + * Purpose: Second phase of flushing cached data. * + * Return: Non-negative on success/Negative on failure *------------------------------------------------------------------------- */ static herr_t -H5F__flush_phase2(H5F_t *f, hid_t meta_dxpl_id, hid_t raw_dxpl_id, hbool_t closing) +H5F__flush_phase2(H5F_t *f, hbool_t closing) { - H5F_io_info2_t fio_info; /* I/O info for operation */ herr_t ret_value = SUCCEED; /* Return value */ FUNC_ENTER_STATIC @@ -1570,41 +1875,48 @@ H5F__flush_phase2(H5F_t *f, hid_t meta_dxpl_id, hid_t raw_dxpl_id, hbool_t closi HDassert(f); /* Flush the entire metadata cache */ - if(H5AC_flush(f, meta_dxpl_id) < 0) + if(H5AC_flush(f) < 0) /* Push error, but keep going*/ HDONE_ERROR(H5E_CACHE, H5E_CANTFLUSH, FAIL, "unable to flush metadata cache") +#ifdef H5_HAVE_PARALLEL + if(H5F_HAS_FEATURE(f, H5FD_FEAT_HAS_MPI)) + /* Since we just returned from a call to H5AC_flush(), we just + * passed through a barrier. Hence we can skip the barrier on + * entry to the mpio file driver truncate call below, and the first + * barrier in the following call to flush the cache again. + */ + H5CX_set_mpi_file_flushing(TRUE); +#endif /* H5_HAVE_PARALLEL */ + /* Truncate the file to the current allocated size */ - if(H5FD_truncate(f->shared->lf, meta_dxpl_id, closing) < 0) + if(H5FD_truncate(f->shared->lf, closing) < 0) /* Push error, but keep going*/ HDONE_ERROR(H5E_FILE, H5E_WRITEERROR, FAIL, "low level truncate failed") /* Flush the entire metadata cache again since the EOA could have changed in the truncate call. */ - if(H5AC_flush(f, meta_dxpl_id) < 0) + if(H5AC_flush(f) < 0) /* Push error, but keep going*/ HDONE_ERROR(H5E_CACHE, H5E_CANTFLUSH, FAIL, "unable to flush metadata cache") - /* Set up I/O info for operation */ - fio_info.f = f; - if(NULL == (fio_info.meta_dxpl = (H5P_genplist_t *)H5I_object(meta_dxpl_id))) - /* Push error, but keep going*/ - HDONE_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "can't get property list") - if(NULL == (fio_info.raw_dxpl = (H5P_genplist_t *)H5I_object(raw_dxpl_id))) - /* Push error, but keep going*/ - HDONE_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "can't get property list") +#ifdef H5_HAVE_PARALLEL + if(H5F_HAS_FEATURE(f, H5FD_FEAT_HAS_MPI)) + /* Reset the "flushing the file" flag */ + H5CX_set_mpi_file_flushing(FALSE); +#endif /* H5_HAVE_PARALLEL */ /* Flush out the metadata accumulator */ - if(H5F__accum_flush(&fio_info) < 0) + if(H5F__accum_flush(f) < 0) /* Push error, but keep going*/ HDONE_ERROR(H5E_IO, H5E_CANTFLUSH, FAIL, "unable to flush metadata accumulator") /* Flush the page buffer */ - if(H5PB_flush(&fio_info) < 0) + if(H5PB_flush(f) < 0) /* Push error, but keep going*/ HDONE_ERROR(H5E_IO, H5E_CANTFLUSH, FAIL, "page buffer flush failed") /* Flush file buffers to disk. */ - if(H5FD_flush(f->shared->lf, meta_dxpl_id, closing) < 0) + if(H5FD_flush(f->shared->lf, closing) < 0) /* Push error, but keep going*/ HDONE_ERROR(H5E_IO, H5E_CANTFLUSH, FAIL, "low level flush failed") @@ -1613,20 +1925,15 @@ H5F__flush_phase2(H5F_t *f, hid_t meta_dxpl_id, hid_t raw_dxpl_id, hbool_t closi /*------------------------------------------------------------------------- - * Function: H5F__flush - * - * Purpose: Flushes cached data. + * Function: H5F__flush_real * - * Return: Non-negative on success/Negative on failure - * - * Programmer: Robb Matzke - * matzke@llnl.gov - * Aug 29 1997 + * Purpose: Flushes cached data. * + * Return: SUCCEED/FAIL *------------------------------------------------------------------------- */ herr_t -H5F__flush(H5F_t *f, hid_t meta_dxpl_id, hid_t raw_dxpl_id, hbool_t closing) +H5F__flush_real(H5F_t *f) { herr_t ret_value = SUCCEED; /* Return value */ @@ -1636,49 +1943,136 @@ H5F__flush(H5F_t *f, hid_t meta_dxpl_id, hid_t raw_dxpl_id, hbool_t closing) HDassert(f); /* First phase of flushing data */ - if(H5F__flush_phase1(f, meta_dxpl_id) < 0) + if(H5F__flush_phase1(f) < 0) /* Push error, but keep going*/ HDONE_ERROR(H5E_CACHE, H5E_CANTFLUSH, FAIL, "unable to flush file data") /* Second phase of flushing data */ - if(H5F__flush_phase2(f, meta_dxpl_id, raw_dxpl_id, closing) < 0) + if(H5F__flush_phase2(f, FALSE) < 0) /* Push error, but keep going*/ HDONE_ERROR(H5E_CACHE, H5E_CANTFLUSH, FAIL, "unable to flush file data") FUNC_LEAVE_NOAPI(ret_value) +} /* end H5F__flush_real() */ + + +/*------------------------------------------------------------------------- + * Function: H5F__flush + * + * Purpose: Internal routine to flush a file. + * + * Note: This routine is needed so that there's a non-API routine for + * flushing files that can set up VOL / SWMR info + * (which need a DXPL). + * + * Return: Non-negative on success / Negative on failure + * + * Programmer: Quincey Koziol + * December 13, 2017 + * + *------------------------------------------------------------------------- + */ +herr_t +H5F__flush(H5F_t *f, H5F_scope_t scope) +{ + herr_t ret_value = SUCCEED; /* Return value */ + + FUNC_ENTER_PACKAGE_VOL + + /* Sanity check */ + HDassert(f); + HDassert(f->shared); + + /* Flush other files, depending on scope */ + if(H5F_SCOPE_GLOBAL == 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_real(f) < 0) + HGOTO_ERROR(H5E_FILE, H5E_CANTFLUSH, FAIL, "unable to flush file's cached information") + +done: + FUNC_LEAVE_NOAPI_VOL(ret_value) } /* end H5F__flush() */ /*------------------------------------------------------------------------- - * Function: H5F_close + * Function: H5F__close * - * Purpose: Closes a file or causes the close operation to be pended. - * This function is called two ways: from the API it gets called - * by H5Fclose->H5I_dec_ref->H5F_close when H5I_dec_ref() - * decrements the file ID reference count to zero. The file ID - * is removed from the H5I_FILE group by H5I_dec_ref() just - * before H5F_close() is called. If there are open object - * headers then the close is pended by moving the file to the - * H5I_FILE_CLOSING ID group (the f->closing contains the ID - * assigned to file). + * Purpose: Internal routine to close a file. * - * This function is also called directly from H5O_close() when - * the last object header is closed for the file and the file - * has a pending close. + * Note: This routine is needed so that there's a non-API routine for + * closing files that can set up VOL / SWMR info + * (which need a DXPL). * - * Return: Non-negative on success/Negative on failure + * Return: Non-negative on success / Negative on failure * - * Programmer: Robb Matzke - * Tuesday, September 23, 1997 + * Programmer: Quincey Koziol + * December 16, 2017 * *------------------------------------------------------------------------- */ herr_t -H5F_close(H5F_t *f) +H5F__close(hid_t file_id) { - herr_t ret_value = SUCCEED; /* Return value */ + H5F_t *f; /* File pointer */ + herr_t ret_value = SUCCEED; /* Return value */ - FUNC_ENTER_NOAPI_NOINIT + FUNC_ENTER_PACKAGE_VOL + + /* 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(NULL == (f = (H5F_t *)H5I_object(file_id))) + HGOTO_ERROR(H5E_FILE, H5E_BADTYPE, FAIL, "invalid file identifier") + if((f->shared->nrefs > 1) && (H5F_INTENT(f) & H5F_ACC_RDWR)) { + int nref; /* Number of references to file ID */ + + if((nref = H5I_get_ref(file_id, FALSE)) < 0) + HGOTO_ERROR(H5E_FILE, H5E_CANTGET, FAIL, "can't get ID ref count") + if(nref == 1) + if(H5F__flush_real(f) < 0) + HGOTO_ERROR(H5E_FILE, H5E_CANTFLUSH, FAIL, "unable to flush cache") + } /* end if */ + + /* Decrement reference count on file ID */ + /* (When it reaches zero the file will be closed) */ + if(H5I_dec_app_ref(file_id) < 0) + HGOTO_ERROR(H5E_FILE, H5E_CANTDEC, FAIL, "decrementing file ID failed") + +done: + FUNC_LEAVE_NOAPI_VOL(ret_value) +} /* end H5F__close() */ + + +/*------------------------------------------------------------------------- + * Function: H5F__close_cb + * + * Purpose: Closes a file or causes the close operation to be pended. + * This function is called from the API and gets called + * by H5Fclose->H5I_dec_ref->H5F__close_cb when H5I_dec_ref() + * decrements the file ID reference count to zero. The file ID + * is removed from the H5I_FILE group by H5I_dec_ref() just + * before H5F__close_cb() is called. If there are open object + * headers then the close is pended by moving the file to the + * H5I_FILE_CLOSING ID group (the f->closing contains the ID + * assigned to file). + * + * Return: Non-negative on success/Negative on failure + * + *------------------------------------------------------------------------- + */ +herr_t +H5F__close_cb(H5F_t *f) +{ + herr_t ret_value = SUCCEED; /* Return value */ + + FUNC_ENTER_PACKAGE_VOL /* Sanity check */ HDassert(f); @@ -1710,22 +2104,19 @@ H5F_close(H5F_t *f) HGOTO_ERROR(H5E_FILE, H5E_CANTCLOSEFILE, FAIL, "can't close file") done: - FUNC_LEAVE_NOAPI(ret_value) -} /* end H5F_close() */ + FUNC_LEAVE_NOAPI_VOL(ret_value) +} /* end H5F__close_cb() */ /*------------------------------------------------------------------------- - * Function: H5F_try_close + * Function: H5F_try_close * - * Purpose: Attempts to close a file due to one of several actions: + * Purpose: Attempts to close a file due to one of several actions: * - The reference count on the file ID dropped to zero * - The last open object was closed in the file * - The file was unmounted * - * Return: Non-negative on success/Negative on failure - * - * Programmer: Quincey Koziol - * Tuesday, July 19, 2005 + * Return: Non-negative on success/Negative on failure * *------------------------------------------------------------------------- */ @@ -1734,7 +2125,7 @@ H5F_try_close(H5F_t *f, hbool_t *was_closed /*out*/) { unsigned nopen_files = 0; /* Number of open files in file/mount hierarchy */ unsigned nopen_objs = 0; /* Number of open objects in file/mount hierarchy */ - herr_t ret_value = SUCCEED; /* Return value */ + herr_t ret_value = SUCCEED; /* Return value */ FUNC_ENTER_NOAPI_NOINIT @@ -1765,12 +2156,12 @@ H5F_try_close(H5F_t *f, hbool_t *was_closed /*out*/) /* * Close file according to close degree: * - * H5F_CLOSE_WEAK: if there are still objects open, wait until - * they are all closed. - * H5F_CLOSE_SEMI: if there are still objects open, return fail; - * otherwise, close file. - * H5F_CLOSE_STRONG: if there are still objects open, close them - * first, then close file. + * H5F_CLOSE_WEAK: if there are still objects open, wait until + * they are all closed. + * H5F_CLOSE_SEMI: if there are still objects open, return fail; + * otherwise, close file. + * H5F_CLOSE_STRONG: if there are still objects open, close them + * first, then close file. */ switch(f->shared->fc_degree) { case H5F_CLOSE_WEAK: @@ -1861,14 +2252,14 @@ H5F_try_close(H5F_t *f, hbool_t *was_closed /*out*/) HGOTO_ERROR(H5E_FILE, H5E_CANTCLOSEFILE, FAIL, "can't close parent file") /* Unmount and close each child before closing the current file. */ - if(H5F_close_mounts(f) < 0) + if(H5F__close_mounts(f) < 0) HGOTO_ERROR(H5E_FILE, H5E_CANTCLOSEFILE, FAIL, "can't unmount child files") /* If there is more than one reference to the shared file struct and the * file has an external file cache, we should see if it can be closed. This * can happen if a cycle is formed with external file caches */ if(f->shared->efc && (f->shared->nrefs > 1)) - if(H5F_efc_try_close(f) < 0) + if(H5F__efc_try_close(f) < 0) HGOTO_ERROR(H5E_FILE, H5E_CANTRELEASE, FAIL, "can't attempt to close EFC") /* Delay flush until the shared file struct is closed, in H5F__dest. If the @@ -1880,7 +2271,7 @@ H5F_try_close(H5F_t *f, hbool_t *was_closed /*out*/) * shared H5F_file_t struct. If the reference count for the H5F_file_t * struct reaches zero then destroy it also. */ - if(H5F__dest(f, H5AC_ind_read_dxpl_id, H5AC_rawdata_dxpl_id, TRUE) < 0) + if(H5F__dest(f, TRUE) < 0) HGOTO_ERROR(H5E_FILE, H5E_CANTCLOSEFILE, FAIL, "problems closing file") /* Since we closed the file, this should be set to TRUE */ @@ -1892,16 +2283,12 @@ done: /*------------------------------------------------------------------------- - * Function: H5F_get_id - * - * Purpose: Get the file ID, incrementing it, or "resurrecting" it as - * appropriate. + * Function: H5F_get_id * - * Return: Non-negative on success/Negative on failure - * - * Programmer: Raymond Lu - * Oct 29, 2003 + * Purpose: Get the file ID, incrementing it, or "resurrecting" it as + * appropriate. * + * Return: Non-negative on success/Negative on failure *------------------------------------------------------------------------- */ hid_t @@ -1916,8 +2303,9 @@ H5F_get_id(H5F_t *file, hbool_t app_ref) if(file->file_id == -1) { /* Get an atom for the file */ if((file->file_id = H5I_register(H5I_FILE, file, app_ref)) < 0) - HGOTO_ERROR(H5E_ATOM, H5E_CANTREGISTER, FAIL, "unable to atomize file") - } else { + HGOTO_ERROR(H5E_ATOM, H5E_CANTREGISTER, FAIL, "unable to atomize file") + } + else { /* Increment reference count on atom. */ if(H5I_inc_ref(file->file_id, app_ref) < 0) HGOTO_ERROR(H5E_ATOM, H5E_CANTSET, FAIL, "incrementing file ID failed") @@ -1931,18 +2319,12 @@ done: /*------------------------------------------------------------------------- - * Function: H5F_incr_nopen_objs - * - * Purpose: Increment the number of open objects for a file. + * Function: H5F_incr_nopen_objs * - * Return: Success: The number of open objects, after the increment - * - * Failure: (can't happen) - * - * Programmer: Quincey Koziol - * koziol@hdfgroup.org - * Mar 6 2007 + * Purpose: Increment the number of open objects for a file. * + * Return: Success: The number of open objects, after the increment + * Failure: (can't happen) *------------------------------------------------------------------------- */ unsigned @@ -1958,18 +2340,12 @@ H5F_incr_nopen_objs(H5F_t *f) /*------------------------------------------------------------------------- - * Function: H5F_decr_nopen_objs - * - * Purpose: Decrement the number of open objects for a file. + * Function: H5F_decr_nopen_objs * - * Return: Success: The number of open objects, after the decrement - * - * Failure: (can't happen) - * - * Programmer: Quincey Koziol - * koziol@hdfgroup.org - * Mar 6 2007 + * Purpose: Decrement the number of open objects for a file. * + * Return: Success: The number of open objects, after the decrement + * Failure: (can't happen) *------------------------------------------------------------------------- */ unsigned @@ -1985,18 +2361,14 @@ H5F_decr_nopen_objs(H5F_t *f) /*------------------------------------------------------------------------- - * Function: H5F_build_actual_name - * - * Purpose: Retrieve the name of a file, after following symlinks, etc. + * Function: H5F_build_actual_name * - * Note: Currently only working for "POSIX I/O compatible" VFDs + * Purpose: Retrieve the name of a file, after following symlinks, etc. * - * Return: Success: 0 - * Failure: -1 - * - * Programmer: Quincey Koziol - * November 25, 2009 + * Note: Currently only working for "POSIX I/O compatible" VFDs * + * Return: Success: 0 + * Failure: -1 *------------------------------------------------------------------------- */ static herr_t @@ -2111,17 +2483,13 @@ done: /*------------------------------------------------------------------------- - * Function: H5F_addr_encode_len - * - * Purpose: Encodes an address into the buffer pointed to by *PP and - * then increments the pointer to the first byte after the - * address. An undefined value is stored as all 1's. + * Function: H5F_addr_encode_len * - * Return: void - * - * Programmer: Robb Matzke - * Friday, November 7, 1997 + * Purpose: Encodes an address into the buffer pointed to by *PP and + * then increments the pointer to the first byte after the + * address. An undefined value is stored as all 1's. * + * Return: void *------------------------------------------------------------------------- */ void @@ -2136,15 +2504,15 @@ H5F_addr_encode_len(size_t addr_len, uint8_t **pp/*in,out*/, haddr_t addr) HDassert(pp && *pp); if(H5F_addr_defined(addr)) { - for(u = 0; u < addr_len; u++) { - *(*pp)++ = (uint8_t)(addr & 0xff); - addr >>= 8; - } /* end for */ - HDassert("overflow" && 0 == addr); + for(u = 0; u < addr_len; u++) { + *(*pp)++ = (uint8_t)(addr & 0xff); + addr >>= 8; + } /* end for */ + HDassert("overflow" && 0 == addr); } /* end if */ else { - for(u = 0; u < addr_len; u++) - *(*pp)++ = 0xff; + for(u = 0; u < addr_len; u++) + *(*pp)++ = 0xff; } /* end else */ FUNC_LEAVE_NOAPI_VOID @@ -2152,17 +2520,13 @@ H5F_addr_encode_len(size_t addr_len, uint8_t **pp/*in,out*/, haddr_t addr) /*------------------------------------------------------------------------- - * Function: H5F_addr_encode - * - * Purpose: Encodes an address into the buffer pointed to by *PP and - * then increments the pointer to the first byte after the - * address. An undefined value is stored as all 1's. - * - * Return: void + * Function: H5F_addr_encode * - * Programmer: Robb Matzke - * Friday, November 7, 1997 + * Purpose: Encodes an address into the buffer pointed to by *PP and + * then increments the pointer to the first byte after the + * address. An undefined value is stored as all 1's. * + * Return: void *------------------------------------------------------------------------- */ void @@ -2180,27 +2544,23 @@ H5F_addr_encode(const H5F_t *f, uint8_t **pp/*in,out*/, haddr_t addr) /*------------------------------------------------------------------------- - * Function: H5F_addr_decode_len + * Function: H5F_addr_decode_len * - * Purpose: Decodes an address from the buffer pointed to by *PP and - * updates the pointer to point to the next byte after the - * address. + * Purpose: Decodes an address from the buffer pointed to by *PP and + * updates the pointer to point to the next byte after the + * address. * - * If the value read is all 1's then the address is returned - * with an undefined value. - * - * Return: void - * - * Programmer: Robb Matzke - * Friday, November 7, 1997 + * If the value read is all 1's then the address is returned + * with an undefined value. * + * Return: void *------------------------------------------------------------------------- */ void H5F_addr_decode_len(size_t addr_len, const uint8_t **pp/*in,out*/, haddr_t *addr_p/*out*/) { - hbool_t all_zero = TRUE; /* True if address was all zeroes */ - unsigned u; /* Local index variable */ + hbool_t all_zero = TRUE; /* True if address was all zeroes */ + unsigned u; /* Local index variable */ /* Use FUNC_ENTER_NOAPI_NOINIT_NOERR here to avoid performance issues */ FUNC_ENTER_NOAPI_NOINIT_NOERR @@ -2214,27 +2574,27 @@ H5F_addr_decode_len(size_t addr_len, const uint8_t **pp/*in,out*/, haddr_t *addr /* Decode bytes from address */ for(u = 0; u < addr_len; u++) { - uint8_t c; /* Local decoded byte */ + uint8_t c; /* Local decoded byte */ /* Get decoded byte (and advance pointer) */ - c = *(*pp)++; + c = *(*pp)++; /* Check for non-undefined address byte value */ - if(c != 0xff) + if(c != 0xff) all_zero = FALSE; - if(u < sizeof(*addr_p)) { - haddr_t tmp = c; /* Local copy of address, for casting */ + if(u < sizeof(*addr_p)) { + haddr_t tmp = c; /* Local copy of address, for casting */ /* Shift decoded byte to correct position */ - tmp <<= (u * 8); /*use tmp to get casting right */ + tmp <<= (u * 8); /*use tmp to get casting right */ /* Merge into already decoded bytes */ - *addr_p |= tmp; - } /* end if */ + *addr_p |= tmp; + } /* end if */ else if(!all_zero) - HDassert(0 == **pp); /*overflow */ + HDassert(0 == **pp); /*overflow */ } /* end for */ /* If 'all_zero' is still TRUE, the address was entirely composed of '0xff' @@ -2248,20 +2608,16 @@ H5F_addr_decode_len(size_t addr_len, const uint8_t **pp/*in,out*/, haddr_t *addr /*------------------------------------------------------------------------- - * Function: H5F_addr_decode - * - * Purpose: Decodes an address from the buffer pointed to by *PP and - * updates the pointer to point to the next byte after the - * address. + * Function: H5F_addr_decode * - * If the value read is all 1's then the address is returned - * with an undefined value. + * Purpose: Decodes an address from the buffer pointed to by *PP and + * updates the pointer to point to the next byte after the + * address. * - * Return: void - * - * Programmer: Robb Matzke - * Friday, November 7, 1997 + * If the value read is all 1's then the address is returned + * with an undefined value. * + * Return: void *------------------------------------------------------------------------- */ void @@ -2285,10 +2641,6 @@ H5F_addr_decode(const H5F_t *f, const uint8_t **pp/*in,out*/, haddr_t *addr_p/*o * * Return: Success: SUCCEED * Failure: FAIL - * - * Programmer: Quincey Koziol - * 7/19/11 - * *------------------------------------------------------------------------- */ herr_t @@ -2315,10 +2667,6 @@ H5F_set_grp_btree_shared(H5F_t *f, H5UC_t *rc) * * Return: Success: SUCCEED * Failure: FAIL - * - * Programmer: Quincey Koziol - * 7/20/11 - * *------------------------------------------------------------------------- */ herr_t @@ -2344,10 +2692,6 @@ H5F_set_sohm_addr(H5F_t *f, haddr_t addr) * * Return: Success: SUCCEED * Failure: FAIL - * - * Programmer: Quincey Koziol - * 7/20/11 - * *------------------------------------------------------------------------- */ herr_t @@ -2373,10 +2717,6 @@ H5F_set_sohm_vers(H5F_t *f, unsigned vers) * * Return: Success: SUCCEED * Failure: FAIL - * - * Programmer: Quincey Koziol - * 7/20/11 - * *------------------------------------------------------------------------- */ herr_t @@ -2402,10 +2742,6 @@ H5F_set_sohm_nindexes(H5F_t *f, unsigned nindexes) * * Return: Success: SUCCEED * Failure: FAIL - * - * Programmer: Quincey Koziol - * 7/20/11 - * *------------------------------------------------------------------------- */ herr_t @@ -2425,27 +2761,117 @@ H5F_set_store_msg_crt_idx(H5F_t *f, hbool_t flag) /*------------------------------------------------------------------------- - * Function: H5F_get_file_image + * Function: H5F_set_libver_bounds() + * + * Purpose: Set the file's low and high bound to the input parameters + * 'low' and 'high' respectively. + * This is done only if the existing setting is different + * from the inputs. + * + * Return: SUCCEED on success, and FAIL on failure. + * + * Programmer: Vailin Choi; December 2017 + * + *------------------------------------------------------------------------- + */ +herr_t +H5F__set_libver_bounds(H5F_t *f, H5F_libver_t low, H5F_libver_t high) +{ + herr_t ret_value = SUCCEED; /* Return value */ + + FUNC_ENTER_PACKAGE_VOL + + /* Sanity checks */ + HDassert(f); + HDassert(f->shared); + + /* Set the bounds only if the existing setting is different from the inputs */ + if(f->shared->low_bound != low || f->shared->high_bound != high) { + /* Call the flush routine, for this file */ + /* Note: This is done in case the binary format for representing a + * metadata entry class changes when the file format low / high + * bounds are changed and an unwritten entry of that class is + * sitting in the metadata cache. + * + * If that happens, it's possible that the entry's size could + * become larger, potentially corrupting the file (if the larger + * entry is fully written, overwriting data outside its allocated + * space), or corrupting the entry (if the entry is truncated to + * fit into the allocated space). + * + * Although I'm not aware of any metadata with this behavior + * currently, it would be very difficult to guard against and / or + * detect, but if we flush everything here, the format version + * for metadata entries in the cache will be finalized and these + * sorts of problems can be avoided. + * + * QAK - April, 2018 + */ + if(H5F__flush_real(f) < 0) + HGOTO_ERROR(H5E_FILE, H5E_CANTFLUSH, FAIL, "unable to flush file's cached information") + + /* Set the new bounds */ + f->shared->low_bound = low; + f->shared->high_bound = high; + } /* end if */ + +done: + FUNC_LEAVE_NOAPI(ret_value) +} /* H5F_set_libver_bounds() */ + + +/*------------------------------------------------------------------------- + * Function: H5F__get_freespace + * + * Purpose: Private version of H5Fget_freespace + * + * Note: This routine is needed so that there's a non-API routine + * that can set up VOL / SWMR info (which need a DXPL). + * + * Return: Success: SUCCEED + * Failure: FAIL + *------------------------------------------------------------------------- + */ +herr_t +H5F__get_freespace(H5F_t *f, hsize_t *tot_space) +{ + herr_t ret_value = SUCCEED; /* Return value */ + + FUNC_ENTER_PACKAGE_VOL + + /* Sanity check */ + HDassert(f); + HDassert(f->shared); + + /* Go get the actual amount of free space in the file */ + if(H5MF_get_freespace(f, tot_space, NULL) < 0) + HGOTO_ERROR(H5E_FILE, H5E_CANTGET, FAIL, "unable to check free space for file") + +done: + FUNC_LEAVE_NOAPI_VOL(ret_value) +} /* H5F__get_freespace() */ + + +/*------------------------------------------------------------------------- + * Function: H5F__get_file_image * * Purpose: Private version of H5Fget_file_image * + * Note: This routine is needed so that there's a non-API routine + * that can set up VOL / SWMR info (which need a DXPL). + * * Return: Success: Bytes copied / number of bytes needed. * Failure: negative value - * - * Programmer: John Mainzer - * 11/15/11 - * *------------------------------------------------------------------------- */ ssize_t -H5F_get_file_image(H5F_t *file, void *buf_ptr, size_t buf_len, hid_t meta_dxpl_id, - hid_t raw_dxpl_id) +H5F__get_file_image(H5F_t *file, void *buf_ptr, size_t buf_len) { H5FD_t *fd_ptr; /* file driver */ haddr_t eoa; /* End of file address */ ssize_t ret_value = -1; /* Return value */ - FUNC_ENTER_NOAPI_NOINIT + FUNC_ENTER_PACKAGE_VOL /* Check args */ if(!file || !file->shared || !file->shared->lf) @@ -2475,20 +2901,20 @@ H5F_get_file_image(H5F_t *file, void *buf_ptr, size_t buf_len, hid_t meta_dxpl_i if(HDstrcmp(fd_ptr->cls->name, "multi") == 0) HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "Not supported for multi file driver.") - /* While the family file driver is conceptually fully compatible + /* While the family file driver is conceptually fully compatible * with the get file image operation, it sets a file driver message * in the super block that prevents the image being opened with any * driver other than the family file driver. Needless to say, this * rather defeats the purpose of the get file image operation. * - * While this problem is quire solvable, the required time and + * While this problem is quire solvable, the required time and * resources are lacking at present. Hence, for now, we don't - * allow the get file image operation to be perfomed on files + * allow the get file image operation to be perfomed on files * opened with the family file driver. * - * Observe that the following test only looks at the top level + * Observe that the following test only looks at the top level * driver, and fails if there is some other driver sitting on to - * of the family file driver. + * of the family file driver. * * I don't think this can happen at present, but that may change * in the future. @@ -2506,8 +2932,7 @@ H5F_get_file_image(H5F_t *file, void *buf_ptr, size_t buf_len, hid_t meta_dxpl_i /* test to see if a buffer was provided -- if not, we are done */ if(buf_ptr != NULL) { - H5FD_io_info_t fdio_info; /* File driver I/O info */ - size_t space_needed; /* size of file image */ + size_t space_needed; /* size of file image */ hsize_t tmp; size_t tmp_size; @@ -2517,16 +2942,9 @@ H5F_get_file_image(H5F_t *file, void *buf_ptr, size_t buf_len, hid_t meta_dxpl_i space_needed = (size_t)eoa; - /* Set up file driver I/O info object */ - fdio_info.file = fd_ptr; - if(NULL == (fdio_info.meta_dxpl = (H5P_genplist_t *)H5I_object(meta_dxpl_id))) - HGOTO_ERROR(H5E_CACHE, H5E_BADATOM, FAIL, "can't get property list object") - if(NULL == (fdio_info.raw_dxpl = (H5P_genplist_t *)H5I_object(raw_dxpl_id))) - HGOTO_ERROR(H5E_CACHE, H5E_BADATOM, FAIL, "can't get property list object") - /* read in the file image */ /* (Note compensation for base address addition in internal routine) */ - if(H5FD_read(&fdio_info, H5FD_MEM_DEFAULT, 0, space_needed, buf_ptr) < 0) + if(H5FD_read(fd_ptr, H5FD_MEM_DEFAULT, 0, space_needed, buf_ptr) < 0) HGOTO_ERROR(H5E_FILE, H5E_READERROR, FAIL, "file image read request failed") /* Offset to "status_flags" in the superblock */ @@ -2538,34 +2956,81 @@ H5F_get_file_image(H5F_t *file, void *buf_ptr, size_t buf_len, hid_t meta_dxpl_i HDmemset((uint8_t *)(buf_ptr) + tmp, 0, tmp_size); } /* end if */ - + done: - FUNC_LEAVE_NOAPI(ret_value) -} /* H5F_get_file_image() */ + FUNC_LEAVE_NOAPI_VOL(ret_value) +} /* H5F__get_file_image() */ /*------------------------------------------------------------------------- - * Function: H5F_track_metadata_read_retries + * Function: H5F__get_info + * + * Purpose: Private version of H5Fget_info * - * Purpose: To track the # of a "retries" (log10) for a metadata item. - * This routine should be used only when: - * "retries" > 0 - * f->shared->read_attempts > 1 (does not have retry when 1) - * f->shared->retries_nbins > 0 (calculated based on f->shared->read_attempts) + * Note: This routine is needed so that there's a non-API routine + * that can set up VOL / SWMR info (which need a DXPL). * * Return: Success: SUCCEED * Failure: FAIL + *------------------------------------------------------------------------- + */ +herr_t +H5F__get_info(H5F_t *f, H5F_info2_t *finfo) +{ + herr_t ret_value = SUCCEED; /* Return value */ + + FUNC_ENTER_PACKAGE_VOL + + /* Sanity check */ + HDassert(f); + HDassert(f->shared); + HDassert(finfo); + + /* Reset file info struct */ + HDmemset(finfo, 0, sizeof(*finfo)); + + /* Get the size of the superblock and any superblock extensions */ + if(H5F__super_size(f, &finfo->super.super_size, &finfo->super.super_ext_size) < 0) + HGOTO_ERROR(H5E_FILE, H5E_CANTGET, FAIL, "unable to retrieve superblock sizes") + + /* Get the size of any persistent free space */ + if(H5MF_get_freespace(f, &finfo->free.tot_space, &finfo->free.meta_size) < 0) + HGOTO_ERROR(H5E_FILE, H5E_CANTGET, FAIL, "unable to retrieve free space information") + + /* Check for SOHM info */ + if(H5F_addr_defined(f->shared->sohm_addr)) + if(H5SM_ih_size(f, &finfo->sohm.hdr_size, &finfo->sohm.msgs_info) < 0) + HGOTO_ERROR(H5E_FILE, H5E_CANTGET, FAIL, "unable to retrieve SOHM index & heap storage info") + + /* Set version # fields */ + finfo->super.version = f->shared->sblock->super_vers; + finfo->sohm.version = f->shared->sohm_vers; + finfo->free.version = HDF5_FREESPACE_VERSION; + +done: + FUNC_LEAVE_NOAPI_VOL(ret_value) +} /* H5F__get_info() */ + + +/*------------------------------------------------------------------------- + * Function: H5F_track_metadata_read_retries * - * Programmer: Vailin Choi; October 2013 + * Purpose: To track the # of a "retries" (log10) for a metadata item. + * This routine should be used only when: + * "retries" > 0 + * f->shared->read_attempts > 1 (does not have retry when 1) + * f->shared->retries_nbins > 0 (calculated based on f->shared->read_attempts) * + * Return: Success: SUCCEED + * Failure: FAIL *------------------------------------------------------------------------- */ herr_t H5F_track_metadata_read_retries(H5F_t *f, unsigned actype, unsigned retries) { - unsigned log_ind; /* Index to the array of retries based on log10 of retries */ - double tmp; /* Temporary value, to keep compiler quiet */ - herr_t ret_value = SUCCEED; /* Return value */ + unsigned log_ind; /* Index to the array of retries based on log10 of retries */ + double tmp; /* Temporary value, to keep compiler quiet */ + herr_t ret_value = SUCCEED; /* Return value */ FUNC_ENTER_NOAPI(FAIL) @@ -2596,23 +3061,20 @@ done: /*------------------------------------------------------------------------- - * Function: H5F_set_retries + * Function: H5F_set_retries * - * Purpose: To initialize data structures for read retries: - * --zero out "retries" - * --set up "retries_nbins" based on read_attempts - * - * Return: Success: SUCCEED - * Failure: FAIL - * - * Programmer: Vailin Choi; November 2013 + * Purpose: To initialize data structures for read retries: + * --zero out "retries" + * --set up "retries_nbins" based on read_attempts * + * Return: Success: SUCCEED + * Failure: FAIL *------------------------------------------------------------------------- */ herr_t H5F_set_retries(H5F_t *f) { - double tmp; /* Temporary variable */ + double tmp; /* Temporary variable */ /* Use FUNC_ENTER_NOAPI_NOINIT_NOERR here to avoid performance issues */ FUNC_ENTER_NOAPI_NOINIT_NOERR @@ -2635,6 +3097,39 @@ H5F_set_retries(H5F_t *f) /*------------------------------------------------------------------------- + * Function: H5F__get_free_sections + * + * Purpose: Private version of H5Fget_free_sections + * + * Note: This routine is needed so that there's a non-API routine + * that can set up VOL / SWMR info (which need a DXPL). + * + * Return: Success: non-negative, the total # of free space sections + * Failure: negative + *------------------------------------------------------------------------- + */ +ssize_t +H5F__get_free_sections(H5F_t *f, H5FD_mem_t type, size_t nsects, + H5F_sect_info_t *sect_info) +{ + ssize_t ret_value = -1; /* Return value */ + + FUNC_ENTER_PACKAGE_VOL + + /* Sanity check */ + HDassert(f); + HDassert(f->shared); + + /* Go get the actual amount of free space in the file */ + if((ret_value = H5MF_get_free_sections(f, type, nsects, sect_info)) < 0) + HGOTO_ERROR(H5E_FILE, H5E_CANTGET, FAIL, "unable to get free space sections for file") + +done: + FUNC_LEAVE_NOAPI_VOL(ret_value) +} /* H5F__get_free_sections() */ + + +/*------------------------------------------------------------------------- * Function: H5F_object_flush_cb * * Purpose: To invoke the callback function for object flush that is set @@ -2642,9 +3137,6 @@ H5F_set_retries(H5F_t *f) * * Return: Success: SUCCEED * Failure: FAIL - * - * Programmer: Vailin Choi; October 2013 - * *------------------------------------------------------------------------- */ herr_t @@ -2668,15 +3160,11 @@ done: /*------------------------------------------------------------------------- - * Function: H5F__set_base_addr - * - * Purpose: Quick and dirty routine to set the file's 'base_addr' value - * - * Return: Non-negative on success/Negative on failure + * Function: H5F__set_base_addr * - * Programmer: Quincey Koziol <koziol@hdfgroup.org> - * July 19, 2013 + * Purpose: Quick and dirty routine to set the file's 'base_addr' value * + * Return: Non-negative on success/Negative on failure *------------------------------------------------------------------------- */ herr_t @@ -2691,7 +3179,7 @@ H5F__set_base_addr(const H5F_t *f, haddr_t addr) /* Dispatch to driver */ if(H5FD_set_base_addr(f->shared->lf, addr) < 0) - HGOTO_ERROR(H5E_FILE, H5E_CANTSET, FAIL, "driver set_base_addr request failed") + HGOTO_ERROR(H5E_FILE, H5E_CANTSET, FAIL, "driver set_base_addr request failed") done: FUNC_LEAVE_NOAPI(ret_value) @@ -2699,15 +3187,11 @@ done: /*------------------------------------------------------------------------- - * Function: H5F__set_eoa + * Function: H5F__set_eoa * - * Purpose: Quick and dirty routine to set the file's 'eoa' value - * - * Return: Non-negative on success/Negative on failure - * - * Programmer: Quincey Koziol <koziol@hdfgroup.org> - * July 19, 2013 + * Purpose: Quick and dirty routine to set the file's 'eoa' value * + * Return: Non-negative on success/Negative on failure *------------------------------------------------------------------------- */ herr_t @@ -2722,7 +3206,7 @@ H5F__set_eoa(const H5F_t *f, H5F_mem_t type, haddr_t addr) /* Dispatch to driver */ if(H5FD_set_eoa(f->shared->lf, type, addr) < 0) - HGOTO_ERROR(H5E_FILE, H5E_CANTSET, FAIL, "driver set_eoa request failed") + HGOTO_ERROR(H5E_FILE, H5E_CANTSET, FAIL, "driver set_eoa request failed") done: FUNC_LEAVE_NOAPI(ret_value) @@ -2730,15 +3214,11 @@ done: /*------------------------------------------------------------------------- - * Function: H5F__set_paged_aggr - * - * Purpose: Quick and dirty routine to set the file's paged_aggr mode + * Function: H5F__set_paged_aggr * - * Return: Non-negative on success/Negative on failure - * - * Programmer: Quincey Koziol <koziol@hdfgroup.org> - * June 19, 2015 + * Purpose: Quick and dirty routine to set the file's paged_aggr mode * + * Return: Non-negative on success/Negative on failure *------------------------------------------------------------------------- */ herr_t @@ -2760,6 +3240,44 @@ done: FUNC_LEAVE_NOAPI(ret_value) } /* end H5F__set_paged_aggr() */ + +/*------------------------------------------------------------------------- + * Function: H5F__get_max_eof_eoa + * + * Purpose: Determine the maximum of (EOA, EOF) for the file + * + * Return: Non-negative on success/Negative on failure + *------------------------------------------------------------------------- + */ +herr_t +H5F__get_max_eof_eoa(const H5F_t *f, haddr_t *max_eof_eoa) +{ + haddr_t eof; /* Relative address for EOF */ + haddr_t eoa; /* Relative address for EOA */ + haddr_t tmp_max; + herr_t ret_value = SUCCEED; /* Return value */ + + FUNC_ENTER_PACKAGE + + /* Sanity checks */ + HDassert(f); + HDassert(f->shared); + + /* Get the relative EOA and EOF */ + eoa = H5FD_get_eoa(f->shared->lf, H5FD_MEM_DEFAULT); + eof = H5FD_get_eof(f->shared->lf, H5FD_MEM_DEFAULT); + + /* Determine the maximum */ + tmp_max = MAX(eof, eoa); + if(HADDR_UNDEF == tmp_max) + HGOTO_ERROR(H5E_FILE, H5E_CANTGET, FAIL, "file get eof/eoa requests failed") + + *max_eof_eoa = tmp_max; + +done: + FUNC_LEAVE_NOAPI(ret_value) +} /* end H5F__get_max_eof_eoa() */ + #ifdef H5_HAVE_PARALLEL /*------------------------------------------------------------------------- @@ -2769,10 +3287,6 @@ done: * * Return: Success: SUCCEED * Failure: FAIL - * - * Programmer: Quincey Koziol - * 2/10/16 - * *------------------------------------------------------------------------- */ void @@ -2792,31 +3306,381 @@ H5F_set_coll_md_read(H5F_t *f, H5P_coll_md_read_flag_t cmr) /*------------------------------------------------------------------------- - * Function: H5F_set_latest_flags + * Function: H5F__get_metadata_read_retry_info + * + * Purpose: Private function to retrieve the collection of read retries + * for metadata items with checksum. * - * Purpose: Set the latest_flags field with a new value. + * Return: SUCCEED/FAIL + * + *------------------------------------------------------------------------- + */ +herr_t +H5F__get_metadata_read_retry_info(H5F_t *file, H5F_retry_info_t *info) +{ + unsigned i, j; /* Local index variable */ + size_t tot_size; /* Size of each retries[i] */ + herr_t ret_value = SUCCEED; /* Return value */ + + FUNC_ENTER_PACKAGE + + /* Check args */ + HDassert(file); + HDassert(info); + + /* Copy the # of bins for "retries" array */ + info->nbins = file->shared->retries_nbins; + + /* Initialize the array of "retries" */ + HDmemset(info->retries, 0, sizeof(info->retries)); + + /* Return if there are no bins -- no retries */ + if (!info->nbins) + HGOTO_DONE(SUCCEED); + + /* Calculate size for each retries[i] */ + tot_size = info->nbins * sizeof(uint32_t); + + /* Map and copy information to info's retries for metadata items with tracking for read retries */ + j = 0; + for (i = 0; i < H5AC_NTYPES; i++) { + switch (i) { + case H5AC_OHDR_ID: + case H5AC_OHDR_CHK_ID: + case H5AC_BT2_HDR_ID: + case H5AC_BT2_INT_ID: + case H5AC_BT2_LEAF_ID: + case H5AC_FHEAP_HDR_ID: + case H5AC_FHEAP_DBLOCK_ID: + case H5AC_FHEAP_IBLOCK_ID: + case H5AC_FSPACE_HDR_ID: + case H5AC_FSPACE_SINFO_ID: + case H5AC_SOHM_TABLE_ID: + case H5AC_SOHM_LIST_ID: + case H5AC_EARRAY_HDR_ID: + case H5AC_EARRAY_IBLOCK_ID: + case H5AC_EARRAY_SBLOCK_ID: + case H5AC_EARRAY_DBLOCK_ID: + case H5AC_EARRAY_DBLK_PAGE_ID: + case H5AC_FARRAY_HDR_ID: + case H5AC_FARRAY_DBLOCK_ID: + case H5AC_FARRAY_DBLK_PAGE_ID: + case H5AC_SUPERBLOCK_ID: + HDassert(j < H5F_NUM_METADATA_READ_RETRY_TYPES); + if (file->shared->retries[i] != NULL) { + /* Allocate memory for retries[i] + * + * This memory should be released by the user with + * the H5free_memory() call. + */ + if (NULL == (info->retries[j] = (uint32_t *)H5MM_malloc(tot_size))) + HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, FAIL, "memory allocation failed") + + /* Copy the information */ + HDmemcpy(info->retries[j], file->shared->retries[i], tot_size); + } + + /* Increment location in info->retries[] array */ + j++; + break; + + default: + break; + } + } + +done: + FUNC_LEAVE_NOAPI(ret_value) +} /* end H5F__get_metadata_read_retry_info() */ + + + +/*------------------------------------------------------------------------- + * Function: H5F__start_swmr_write + * + * Purpose: Private version of H5Fstart_swmr_write + * + * 1) Refresh opened objects: part 1 + * 2) Flush & reset accumulator + * 3) Mark the file in SWMR writing mode + * 4) Set metadata read attempts and retries info + * 5) Disable accumulator + * 6) Evict all cache entries except the superblock + * 7) Refresh opened objects (part 2) + * 8) Unlock the file + * + * Pre-conditions: + * + * 1) The file being opened has v3 superblock + * 2) The file is opened with H5F_ACC_RDWR + * 3) The file is not already marked for SWMR writing + * 4) Current implementaion for opened objects: + * --only allow datasets and groups without attributes + * --disallow named datatype with/without attributes + * --disallow opened attributes attached to objects + * + * Note: Currently, only opened groups and datasets are allowed + * when enabling SWMR via H5Fstart_swmr_write(). + * Will later implement a different approach-- + * set up flush dependency/proxy even for file opened without + * SWMR to resolve issues with opened objects. + * + * Note: This routine is needed so that there's a non-API routine + * that can set up VOL / SWMR info (which need a DXPL). * * Return: Success: SUCCEED * Failure: FAIL + *------------------------------------------------------------------------- + */ +herr_t +H5F__start_swmr_write(H5F_t *f) +{ + hbool_t ci_load = FALSE; /* whether MDC ci load requested */ + hbool_t ci_write = FALSE; /* whether MDC CI write requested */ + size_t grp_dset_count = 0; /* # of open objects: groups & datasets */ + size_t nt_attr_count = 0; /* # of opened named datatypes + opened attributes */ + hid_t *obj_ids = NULL; /* List of ids */ + H5G_loc_t *obj_glocs = NULL; /* Group location of the object */ + H5O_loc_t *obj_olocs = NULL; /* Object location */ + H5G_name_t *obj_paths = NULL; /* Group hierarchy path */ + size_t u; /* Local index variable */ + hbool_t setup = FALSE; /* Boolean flag to indicate whether SWMR setting is enabled */ + herr_t ret_value = SUCCEED; /* Return value */ + + FUNC_ENTER_PACKAGE_VOL + + /* Sanity check */ + HDassert(f); + HDassert(f->shared); + + /* Should have write permission */ + if((H5F_INTENT(f) & H5F_ACC_RDWR) == 0) + HGOTO_ERROR(H5E_FILE, H5E_BADVALUE, FAIL, "no write intent on file") + + /* Check superblock version */ + if(f->shared->sblock->super_vers < HDF5_SUPERBLOCK_VERSION_3) + HGOTO_ERROR(H5E_FILE, H5E_BADVALUE, FAIL, "file superblock version - should be at least 3") + + /* Check for correct file format version */ + if((f->shared->low_bound != H5F_LIBVER_V110) || (f->shared->high_bound != H5F_LIBVER_V110)) + HGOTO_ERROR(H5E_FILE, H5E_BADVALUE, FAIL, "file format version does not support SWMR - needs to be 1.10 or greater") + + /* Should not be marked for SWMR writing mode already */ + if(f->shared->sblock->status_flags & H5F_SUPER_SWMR_WRITE_ACCESS) + HGOTO_ERROR(H5E_FILE, H5E_BADVALUE, FAIL, "file already in SWMR writing mode") + + /* Check to see if cache image is enabled. Fail if so */ + if(H5C_cache_image_status(f, &ci_load, &ci_write) < 0) + HGOTO_ERROR(H5E_FILE, H5E_CANTGET, FAIL, "can't get MDC cache image status") + if(ci_load || ci_write ) + HGOTO_ERROR(H5E_FILE, H5E_UNSUPPORTED, FAIL, "can't have both SWMR and MDC cache image") + + /* Flush the superblock extension */ + if(H5F_flush_tagged_metadata(f, f->shared->sblock->ext_addr) < 0) + HGOTO_ERROR(H5E_FILE, H5E_CANTFLUSH, FAIL, "unable to flush superblock extension") + + /* Flush data buffers */ + if(H5F__flush_real(f) < 0) + HGOTO_ERROR(H5E_FILE, H5E_CANTFLUSH, FAIL, "unable to flush f's cached information") + + /* Get the # of opened named datatypes and attributes */ + if(H5F_get_obj_count(f, H5F_OBJ_DATATYPE|H5F_OBJ_ATTR, FALSE, &nt_attr_count) < 0) + HGOTO_ERROR(H5E_INTERNAL, H5E_BADITER, FAIL, "H5F_get_obj_count failed") + if(nt_attr_count) + HGOTO_ERROR(H5E_FILE, H5E_BADVALUE, FAIL, "named datatypes and/or attributes opened in the file") + + /* Get the # of opened datasets and groups */ + if(H5F_get_obj_count(f, H5F_OBJ_GROUP|H5F_OBJ_DATASET, FALSE, &grp_dset_count) < 0) + HGOTO_ERROR(H5E_INTERNAL, H5E_BADITER, FAIL, "H5F_get_obj_count failed") + + if(grp_dset_count) { + /* Allocate space for group and object locations */ + if((obj_ids = (hid_t *) H5MM_malloc(grp_dset_count * sizeof(hid_t))) == NULL) + HGOTO_ERROR(H5E_FILE, H5E_NOSPACE, FAIL, "can't allocate buffer for hid_t") + if((obj_glocs = (H5G_loc_t *) H5MM_malloc(grp_dset_count * sizeof(H5G_loc_t))) == NULL) + HGOTO_ERROR(H5E_FILE, H5E_NOSPACE, FAIL, "can't allocate buffer for H5G_loc_t") + if((obj_olocs = (H5O_loc_t *) H5MM_malloc(grp_dset_count * sizeof(H5O_loc_t))) == NULL) + HGOTO_ERROR(H5E_FILE, H5E_NOSPACE, FAIL, "can't allocate buffer for H5O_loc_t") + if((obj_paths = (H5G_name_t *) H5MM_malloc(grp_dset_count * sizeof(H5G_name_t))) == NULL) + HGOTO_ERROR(H5E_FILE, H5E_NOSPACE, FAIL, "can't allocate buffer for H5G_name_t") + + /* Get the list of opened object ids (groups & datasets) */ + if(H5F_get_obj_ids(f, H5F_OBJ_GROUP|H5F_OBJ_DATASET, grp_dset_count, obj_ids, FALSE, &grp_dset_count) < 0) + HGOTO_ERROR(H5E_FILE, H5E_CANTGET, FAIL, "H5F_get_obj_ids failed") + + /* Refresh opened objects (groups, datasets) in the file */ + for(u = 0; u < grp_dset_count; u++) { + H5O_loc_t *oloc; /* object location */ + H5G_loc_t tmp_loc; + + /* Set up the id's group location */ + obj_glocs[u].oloc = &obj_olocs[u]; + obj_glocs[u].path = &obj_paths[u]; + H5G_loc_reset(&obj_glocs[u]); + + /* get the id's object location */ + if((oloc = H5O_get_loc(obj_ids[u])) == NULL) + HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not an object") + + /* Make deep local copy of object's location information */ + H5G_loc(obj_ids[u], &tmp_loc); + H5G_loc_copy(&obj_glocs[u], &tmp_loc, H5_COPY_DEEP); + + /* Close the object */ + if(H5I_dec_ref(obj_ids[u]) < 0) + HGOTO_ERROR(H5E_ATOM, H5E_CANTCLOSEOBJ, FAIL, "decrementing object ID failed") + } /* end for */ + } /* end if */ + + /* Flush and reset the accumulator */ + if(H5F__accum_reset(f, TRUE) < 0) + HGOTO_ERROR(H5E_IO, H5E_CANTRESET, FAIL, "can't reset accumulator") + + /* Turn on SWMR write in shared file open flags */ + f->shared->flags |= H5F_ACC_SWMR_WRITE; + + /* Mark the file in SWMR writing mode */ + f->shared->sblock->status_flags |= H5F_SUPER_SWMR_WRITE_ACCESS; + + /* Set up metadata read attempts */ + f->shared->read_attempts = H5F_SWMR_METADATA_READ_ATTEMPTS; + + /* Initialize "retries" and "retries_nbins" */ + if(H5F_set_retries(f) < 0) + HGOTO_ERROR(H5E_FILE, H5E_CANTINIT, FAIL, "can't set retries and retries_nbins") + + /* Turn off usage of accumulator */ + f->shared->feature_flags &= ~(unsigned)H5FD_FEAT_ACCUMULATE_METADATA; + if(H5FD_set_feature_flags(f->shared->lf, f->shared->feature_flags) < 0) + HGOTO_ERROR(H5E_FILE, H5E_CANTSET, FAIL, "can't set feature_flags in VFD") + + setup = TRUE; + + /* Mark superblock as dirty */ + if(H5F_super_dirty(f) < 0) + HGOTO_ERROR(H5E_FILE, H5E_CANTMARKDIRTY, FAIL, "unable to mark superblock as dirty") + + /* Flush the superblock */ + if(H5F_flush_tagged_metadata(f, H5AC__SUPERBLOCK_TAG) < 0) + HGOTO_ERROR(H5E_FILE, H5E_CANTFLUSH, FAIL, "unable to flush superblock") + + /* Evict all flushed entries in the cache except the pinned superblock */ + if(H5F__evict_cache_entries(f) < 0) + HGOTO_ERROR(H5E_FILE, H5E_CANTFLUSH, FAIL, "unable to evict file's cached information") + + /* Refresh (reopen) the objects (groups & datasets) in the file */ + for(u = 0; u < grp_dset_count; u++) + if(H5O_refresh_metadata_reopen(obj_ids[u], &obj_glocs[u], TRUE) < 0) + HGOTO_ERROR(H5E_ATOM, H5E_CLOSEERROR, FAIL, "can't refresh-close object") + + /* Unlock the file */ + if(H5FD_unlock(f->shared->lf) < 0) + HGOTO_ERROR(H5E_FILE, H5E_CANTOPENFILE, FAIL, "unable to unlock the file") + +done: + if(ret_value < 0 && setup) { + HDassert(f); + + /* Re-enable accumulator */ + f->shared->feature_flags |= (unsigned)H5FD_FEAT_ACCUMULATE_METADATA; + if(H5FD_set_feature_flags(f->shared->lf, f->shared->feature_flags) < 0) + HDONE_ERROR(H5E_FILE, H5E_CANTSET, FAIL, "can't set feature_flags in VFD") + + /* Reset the # of read attempts */ + f->shared->read_attempts = H5F_METADATA_READ_ATTEMPTS; + if(H5F_set_retries(f) < 0) + HDONE_ERROR(H5E_FILE, H5E_CANTINIT, FAIL, "can't set retries and retries_nbins") + + /* Un-set H5F_ACC_SWMR_WRITE in shared open flags */ + f->shared->flags &= ~H5F_ACC_SWMR_WRITE; + + /* Unmark the f: not in SWMR writing mode */ + f->shared->sblock->status_flags &= (uint8_t)(~H5F_SUPER_SWMR_WRITE_ACCESS); + + /* Mark superblock as dirty */ + if(H5F_super_dirty(f) < 0) + HDONE_ERROR(H5E_FILE, H5E_CANTMARKDIRTY, FAIL, "unable to mark superblock as dirty") + + /* Flush the superblock */ + if(H5F_flush_tagged_metadata(f, H5AC__SUPERBLOCK_TAG) < 0) + HDONE_ERROR(H5E_FILE, H5E_CANTFLUSH, FAIL, "unable to flush superblock") + } /* end if */ + + /* Free memory */ + if(obj_ids) + H5MM_xfree(obj_ids); + if(obj_glocs) + H5MM_xfree(obj_glocs); + if(obj_olocs) + H5MM_xfree(obj_olocs); + if(obj_paths) + H5MM_xfree(obj_paths); + + FUNC_LEAVE_NOAPI_VOL(ret_value) +} /* H5F__start_swmr_write() */ + + +/*------------------------------------------------------------------------- + * Function: H5F__format_convert + * + * Purpose: Private version of H5Fformat_convert * - * Programmer: Quincey Koziol - * 4/26/16 + * Note: This routine is needed so that there's a non-API routine + * that can set up VOL / SWMR info (which need a DXPL). * + * Return: Success: SUCCEED + * Failure: FAIL *------------------------------------------------------------------------- */ herr_t -H5F_set_latest_flags(H5F_t *f, unsigned flags) +H5F__format_convert(H5F_t *f) { - /* Use FUNC_ENTER_NOAPI_NOINIT_NOERR here to avoid performance issues */ - FUNC_ENTER_NOAPI_NOINIT_NOERR + hbool_t mark_dirty = FALSE; /* Whether to mark the file's superblock dirty */ + herr_t ret_value = SUCCEED; /* Return value */ + + FUNC_ENTER_PACKAGE_VOL /* Sanity check */ HDassert(f); HDassert(f->shared); - HDassert(0 == ((~flags) & H5F_LATEST_ALL_FLAGS)); - f->shared->latest_flags = flags; + /* Check if the superblock should be downgraded */ + if(f->shared->sblock->super_vers > HDF5_SUPERBLOCK_VERSION_V18_LATEST) { + f->shared->sblock->super_vers = HDF5_SUPERBLOCK_VERSION_V18_LATEST; + mark_dirty = TRUE; + } /* end if */ - FUNC_LEAVE_NOAPI(SUCCEED) -} /* H5F_set_latest_flags() */ + /* Check for persistent freespace manager, which needs to be downgraded */ + if(!(f->shared->fs_strategy == H5F_FILE_SPACE_STRATEGY_DEF && + f->shared->fs_persist == H5F_FREE_SPACE_PERSIST_DEF && + f->shared->fs_threshold == H5F_FREE_SPACE_THRESHOLD_DEF && + f->shared->fs_page_size == H5F_FILE_SPACE_PAGE_SIZE_DEF)) { + /* Check to remove free-space manager info message from superblock extension */ + if(H5F_addr_defined(f->shared->sblock->ext_addr)) + if(H5F__super_ext_remove_msg(f, H5O_FSINFO_ID) < 0) + HGOTO_ERROR(H5E_FILE, H5E_CANTRELEASE, FAIL, "error in removing message from superblock extension") + + /* Close freespace manager */ + if(H5MF_try_close(f) < 0) + HGOTO_ERROR(H5E_FILE, H5E_CANTRELEASE, FAIL, "unable to free free-space address") + + /* Set non-persistent freespace manager */ + f->shared->fs_strategy = H5F_FILE_SPACE_STRATEGY_DEF; + f->shared->fs_persist = H5F_FREE_SPACE_PERSIST_DEF; + f->shared->fs_threshold = H5F_FREE_SPACE_THRESHOLD_DEF; + f->shared->fs_page_size = H5F_FILE_SPACE_PAGE_SIZE_DEF; + + /* Indicate that the superblock should be marked dirty */ + mark_dirty = TRUE; + } /* end if */ + + /* Check if we should mark the superblock dirty */ + if(mark_dirty) + /* Mark superblock as dirty */ + if(H5F_super_dirty(f) < 0) + HGOTO_ERROR(H5E_FILE, H5E_CANTMARKDIRTY, FAIL, "unable to mark superblock as dirty") + +done: + FUNC_LEAVE_NOAPI_VOL(ret_value) +} /* H5F__format_convert() */ |