diff options
Diffstat (limited to 'src/H5Pfapl.c')
| -rw-r--r-- | src/H5Pfapl.c | 571 |
1 files changed, 561 insertions, 10 deletions
diff --git a/src/H5Pfapl.c b/src/H5Pfapl.c index 14e1c91..40a529b 100644 --- a/src/H5Pfapl.c +++ b/src/H5Pfapl.c @@ -178,6 +178,37 @@ #define H5F_ACS_CORE_WRITE_TRACKING_PAGE_SIZE_DEF 524288 #define H5F_ACS_CORE_WRITE_TRACKING_PAGE_SIZE_ENC H5P__encode_size_t #define H5F_ACS_CORE_WRITE_TRACKING_PAGE_SIZE_DEC H5P__decode_size_t +/* Definition for # of metadata read attempts */ +#define H5F_ACS_METADATA_READ_ATTEMPTS_SIZE sizeof(unsigned) +#define H5F_ACS_METADATA_READ_ATTEMPTS_DEF 0 +#define H5F_ACS_METADATA_READ_ATTEMPTS_ENC H5P__encode_unsigned +#define H5F_ACS_METADATA_READ_ATTEMPTS_DEC H5P__decode_unsigned +/* Definition for object flush callback */ +#define H5F_ACS_OBJECT_FLUSH_CB_SIZE sizeof(H5F_object_flush_t) +#define H5F_ACS_OBJECT_FLUSH_CB_DEF {NULL, NULL} +/* Definition for status_flags in the superblock */ +#define H5F_ACS_CLEAR_STATUS_FLAGS_SIZE sizeof(hbool_t) +#define H5F_ACS_CLEAR_STATUS_FLAGS_DEF FALSE +/* Definition for 'use metadata cache logging' flag */ +#define H5F_ACS_USE_MDC_LOGGING_SIZE sizeof(hbool_t) +#define H5F_ACS_USE_MDC_LOGGING_DEF FALSE +#define H5F_ACS_USE_MDC_LOGGING_ENC H5P__encode_hbool_t +#define H5F_ACS_USE_MDC_LOGGING_DEC H5P__decode_hbool_t +/* Definition for 'mdc log location' flag */ +#define H5F_ACS_MDC_LOG_LOCATION_SIZE sizeof(char *) +#define H5F_ACS_MDC_LOG_LOCATION_DEF NULL /* default is no log location */ +#define H5F_ACS_MDC_LOG_LOCATION_ENC H5P_facc_mdc_log_location_enc +#define H5F_ACS_MDC_LOG_LOCATION_DEC H5P_facc_mdc_log_location_dec +#define H5F_ACS_MDC_LOG_LOCATION_DEL H5P_facc_mdc_log_location_del +#define H5F_ACS_MDC_LOG_LOCATION_COPY H5P_facc_mdc_log_location_copy +#define H5F_ACS_MDC_LOG_LOCATION_CMP H5P_facc_mdc_log_location_cmp +#define H5F_ACS_MDC_LOG_LOCATION_CLOSE H5P_facc_mdc_log_location_close +/* Definition for 'start metadata cache logging on access' flag */ +#define H5F_ACS_START_MDC_LOG_ON_ACCESS_SIZE sizeof(hbool_t) +#define H5F_ACS_START_MDC_LOG_ON_ACCESS_DEF FALSE +#define H5F_ACS_START_MDC_LOG_ON_ACCESS_ENC H5P__encode_hbool_t +#define H5F_ACS_START_MDC_LOG_ON_ACCESS_DEC H5P__decode_hbool_t + /******************/ /* Local Typedefs */ @@ -224,6 +255,14 @@ static herr_t H5P__facc_fclose_degree_dec(const void **pp, void *value); static herr_t H5P__facc_multi_type_enc(const void *value, void **_pp, size_t *size); static herr_t H5P__facc_multi_type_dec(const void **_pp, void *value); +/* Metadata cache log location property callbacks */ +static herr_t H5P_facc_mdc_log_location_enc(const void *value, void **_pp, size_t *size); +static herr_t H5P_facc_mdc_log_location_dec(const void **_pp, void *value); +static herr_t H5P_facc_mdc_log_location_del(hid_t prop_id, const char *name, size_t size, void *value); +static herr_t H5P_facc_mdc_log_location_copy(const char *name, size_t size, void *value); +static int H5P_facc_mdc_log_location_cmp(const void *value1, const void *value2, size_t size); +static herr_t H5P_facc_mdc_log_location_close(const char *name, size_t size, void *value); + /*********************/ /* Package Variables */ @@ -280,6 +319,12 @@ static const unsigned H5F_def_efc_size_g = H5F_ACS_EFC_SIZE_DEF; static const H5FD_file_image_info_t H5F_def_file_image_info_g = H5F_ACS_FILE_IMAGE_INFO_DEF; /* Default file image info and callbacks */ static const hbool_t H5F_def_core_write_tracking_flag_g = H5F_ACS_CORE_WRITE_TRACKING_FLAG_DEF; /* Default setting for core VFD write tracking */ static const size_t H5F_def_core_write_tracking_page_size_g = H5F_ACS_CORE_WRITE_TRACKING_PAGE_SIZE_DEF; /* Default core VFD write tracking page size */ +static const unsigned H5F_def_metadata_read_attempts_g = H5F_ACS_METADATA_READ_ATTEMPTS_DEF; /* Default setting for the # of metadata read attempts */ +static const H5F_object_flush_t H5F_def_object_flush_cb_g = H5F_ACS_OBJECT_FLUSH_CB_DEF; /* Default setting for object flush callback */ +static const hbool_t H5F_def_clear_status_flags_g = H5F_ACS_CLEAR_STATUS_FLAGS_DEF; /* Default to clear the superblock status_flags */ +static const hbool_t H5F_def_use_mdc_logging_g = H5F_ACS_USE_MDC_LOGGING_DEF; /* Default metadata cache logging flag */ +static const char *H5F_def_mdc_log_location_g = H5F_ACS_MDC_LOG_LOCATION_DEF; /* Default mdc log location */ +static const hbool_t H5F_def_start_mdc_log_on_access_g = H5F_ACS_START_MDC_LOG_ON_ACCESS_DEF; /* Default mdc log start on access flag */ @@ -437,6 +482,39 @@ H5P__facc_reg_prop(H5P_genclass_t *pclass) NULL, NULL, NULL, NULL) < 0) HGOTO_ERROR(H5E_PLIST, H5E_CANTINSERT, FAIL, "can't insert property into class") + /* Register the # of read attempts */ + if(H5P_register_real(pclass, H5F_ACS_METADATA_READ_ATTEMPTS_NAME, H5F_ACS_METADATA_READ_ATTEMPTS_SIZE, &H5F_def_metadata_read_attempts_g, + NULL, NULL, NULL, H5F_ACS_METADATA_READ_ATTEMPTS_ENC, H5F_ACS_METADATA_READ_ATTEMPTS_DEC, + NULL, NULL, NULL, NULL) < 0) + HGOTO_ERROR(H5E_PLIST, H5E_CANTINSERT, FAIL, "can't insert property into class") + + /* Register object flush callback */ + /* (Note: this property should not have an encode/decode callback -QAK) */ + if(H5P_register_real(pclass, H5F_ACS_OBJECT_FLUSH_CB_NAME, H5F_ACS_OBJECT_FLUSH_CB_SIZE, &H5F_def_object_flush_cb_g, + NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL) < 0) + HGOTO_ERROR(H5E_PLIST, H5E_CANTINSERT, FAIL, "can't insert property into class") + + /* Register the private property of whether to clear the superblock status_flags. It's used by h5clear only. */ + if(H5P_register_real(pclass, H5F_ACS_CLEAR_STATUS_FLAGS_NAME, H5F_ACS_CLEAR_STATUS_FLAGS_SIZE, &H5F_def_clear_status_flags_g, + NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL) < 0) + HGOTO_ERROR(H5E_PLIST, H5E_CANTINSERT, FAIL, "can't insert property into class") + + /* Register the metadata cache logging flag. */ + if(H5P_register_real(pclass, H5F_ACS_USE_MDC_LOGGING_NAME, H5F_ACS_USE_MDC_LOGGING_SIZE, &H5F_def_use_mdc_logging_g, + NULL, NULL, NULL, H5F_ACS_USE_MDC_LOGGING_ENC, H5F_ACS_USE_MDC_LOGGING_DEC, NULL, NULL, NULL, NULL) < 0) + HGOTO_ERROR(H5E_PLIST, H5E_CANTINSERT, FAIL, "can't insert property into class") + + /* Register the metadata cache log location. */ + if(H5P_register_real(pclass, H5F_ACS_MDC_LOG_LOCATION_NAME, H5F_ACS_MDC_LOG_LOCATION_SIZE, &H5F_def_mdc_log_location_g, + NULL, NULL, NULL, H5F_ACS_MDC_LOG_LOCATION_ENC, H5F_ACS_MDC_LOG_LOCATION_DEC, + H5F_ACS_MDC_LOG_LOCATION_DEL, H5F_ACS_MDC_LOG_LOCATION_COPY, H5F_ACS_MDC_LOG_LOCATION_CMP, H5F_ACS_MDC_LOG_LOCATION_CLOSE) < 0) + HGOTO_ERROR(H5E_PLIST, H5E_CANTINSERT, FAIL, "can't insert property into class") + + /* Register the flag that indicates whether mdc logging starts on file access. */ + if(H5P_register_real(pclass, H5F_ACS_START_MDC_LOG_ON_ACCESS_NAME, H5F_ACS_START_MDC_LOG_ON_ACCESS_SIZE, &H5F_def_start_mdc_log_on_access_g, + NULL, NULL, NULL, H5F_ACS_START_MDC_LOG_ON_ACCESS_ENC, H5F_ACS_START_MDC_LOG_ON_ACCESS_DEC, NULL, NULL, NULL, NULL) < 0) + HGOTO_ERROR(H5E_PLIST, H5E_CANTINSERT, FAIL, "can't insert property into class") + done: FUNC_LEAVE_NOAPI(ret_value) } /* end H5P__facc_reg_prop() */ @@ -2883,16 +2961,6 @@ H5P__facc_cache_config_cmp(const void *_config1, const void *_config2, size_t H5 if(config1->rpt_fcn_enabled < config2->rpt_fcn_enabled) HGOTO_DONE(-1); if(config1->rpt_fcn_enabled > config2->rpt_fcn_enabled) HGOTO_DONE(1); - if(config1->open_trace_file < config2->open_trace_file) HGOTO_DONE(-1); - if(config1->open_trace_file > config2->open_trace_file) HGOTO_DONE(1); - - if(config1->close_trace_file < config2->close_trace_file) HGOTO_DONE(-1); - if(config1->close_trace_file > config2->close_trace_file) HGOTO_DONE(1); - - if((ret_value = HDstrncmp(config1->trace_file_name, config2->trace_file_name, - (size_t)(H5AC__MAX_TRACE_FILE_NAME_LEN + 1))) != 0) - HGOTO_DONE(ret_value); - if(config1->evictions_enabled < config2->evictions_enabled) HGOTO_DONE(-1); if(config1->evictions_enabled > config2->evictions_enabled) HGOTO_DONE(1); @@ -3475,3 +3543,486 @@ done: FUNC_LEAVE_API(ret_value) } + +/*------------------------------------------------------------------------- + * Function: H5Pset_metadata_read_attempts + * + * Purpose: Sets the # of read attempts in the file access property list + * when reading metadata with checksum. + * The # of read attempts set via this routine will only apply + * when opening a file with SWMR access. + * The # of read attempts set via this routine does not have + * any effect when opening a file with non-SWMR access; for this + * case, the # of read attempts will be always be 1. + * + * Return: Non-negative on success/Negative on failure + * + * Programmer: Vailin Choi; Sept 2013 + * + *------------------------------------------------------------------------- + */ +herr_t +H5Pset_metadata_read_attempts(hid_t plist_id, unsigned attempts) +{ + H5P_genplist_t *plist; /* Property list pointer */ + herr_t ret_value = SUCCEED; /* return value */ + + FUNC_ENTER_API(FAIL) + H5TRACE2("e", "iIu", plist_id, attempts); + + /* Cannot set the # of attempts to 0 */ + if(attempts == 0) + HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "number of metadatata read attempts must be greater than 0"); + + /* Get the plist structure */ + if(NULL == (plist = H5P_object_verify(plist_id, H5P_FILE_ACCESS))) + HGOTO_ERROR(H5E_ATOM, H5E_BADATOM, FAIL, "can't find object for ID") + + /* Set values */ + if(H5P_set(plist, H5F_ACS_METADATA_READ_ATTEMPTS_NAME, &attempts) < 0) + HGOTO_ERROR(H5E_PLIST, H5E_CANTSET, FAIL, "can't set # of metadata read attempts") + +done: + FUNC_LEAVE_API(ret_value) +} /* H5Pset_metadata_read_attempts() */ + + +/*------------------------------------------------------------------------- + * Function: H5Pget_metadata_read_attempts + * + * Purpose: Returns the # of metadata read attempts set in the file access property list. + * + * Return: Non-negative on success/Negative on failure + * + * Programmer: Vailin Choi; Sept 2013 + * + *------------------------------------------------------------------------- + */ +herr_t +H5Pget_metadata_read_attempts(hid_t plist_id, unsigned *attempts/*out*/) +{ + herr_t ret_value = SUCCEED; /* Return value */ + + FUNC_ENTER_API(FAIL) + H5TRACE2("e", "ix", plist_id, attempts); + + /* Get values */ + if(attempts) { + H5P_genplist_t *plist; /* Property list pointer */ + + /* Get the plist structure */ + if(NULL == (plist = H5P_object_verify(plist_id, H5P_FILE_ACCESS))) + HGOTO_ERROR(H5E_ATOM, H5E_BADATOM, FAIL, "can't find object for ID") + + /* Get the # of read attempts set */ + if(H5P_get(plist, H5F_ACS_METADATA_READ_ATTEMPTS_NAME, attempts) < 0) + HGOTO_ERROR(H5E_PLIST, H5E_CANTGET, FAIL, "can't get the number of metadata read attempts") + + /* If not set, return the default value */ + if(*attempts == H5F_ACS_METADATA_READ_ATTEMPTS_DEF) /* 0 */ + *attempts = H5F_METADATA_READ_ATTEMPTS; + } /* end if */ + +done: + FUNC_LEAVE_API(ret_value) +} /* end H5Pget_metadata_read_attempts() */ + + +/*------------------------------------------------------------------------- + * Function: H5Pset_obj_flush_cb + * + * Purpose: Sets the callback function to invoke and the user data when an + * object flush occurs in the file. + * + * Return: Non-negative on success/Negative on failure + * + * Programmer: Vailin Choi; Dec 2013 + * + *------------------------------------------------------------------------- + */ +herr_t +H5Pset_object_flush_cb(hid_t plist_id, H5F_flush_cb_t func, void *udata) +{ + H5P_genplist_t *plist; /* Property list pointer */ + H5F_object_flush_t flush_info; + herr_t ret_value = SUCCEED; /* return value */ + + FUNC_ENTER_API(FAIL) + H5TRACE3("e", "ix*x", plist_id, func, udata); + + /* Check if the callback function is NULL and the user data is non-NULL. + * This is almost certainly an error as the user data will not be used. */ + if(!func && udata) + HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "callback is NULL while user data is not") + + /* Get the plist structure */ + if(NULL == (plist = H5P_object_verify(plist_id, H5P_FILE_ACCESS))) + HGOTO_ERROR(H5E_ATOM, H5E_BADATOM, FAIL, "can't find object for ID") + + /* Update property list */ + flush_info.func = func; + flush_info.udata = udata; + + /* Set values */ + if(H5P_set(plist, H5F_ACS_OBJECT_FLUSH_CB_NAME, &flush_info) < 0) + HGOTO_ERROR(H5E_PLIST, H5E_CANTSET, FAIL, "can't set object flush callback") + +done: + FUNC_LEAVE_API(ret_value) +} /* H5Pset_obj_flush_cb() */ + + +/*------------------------------------------------------------------------- + * Function: H5Pget_obj_flush_cb + * + * Purpose: Retrieves the callback function and user data set in the + * property list for an object flush. + * + * Return: Non-negative on success/Negative on failure + * + * Programmer: Vailin Choi; Dec 2013 + * + *------------------------------------------------------------------------- + */ +herr_t +H5Pget_object_flush_cb(hid_t plist_id, H5F_flush_cb_t *func, void **udata) +{ + H5P_genplist_t *plist; /* Property list pointer */ + H5F_object_flush_t flush_info; + herr_t ret_value = SUCCEED; /* return value */ + + FUNC_ENTER_API(FAIL) + H5TRACE3("e", "i*x**x", plist_id, func, udata); + + /* Get the plist structure */ + if(NULL == (plist = H5P_object_verify(plist_id, H5P_FILE_ACCESS))) + HGOTO_ERROR(H5E_ATOM, H5E_BADATOM, FAIL, "can't find object for ID") + + /* Retrieve the callback function and user data */ + if(H5P_get(plist, H5F_ACS_OBJECT_FLUSH_CB_NAME, &flush_info) < 0) + HGOTO_ERROR(H5E_PLIST, H5E_CANTGET, FAIL, "can't get object flush callback") + + /* Assign return value */ + if(func) + *func = flush_info.func; + if(udata) + *udata = flush_info.udata; + +done: + FUNC_LEAVE_API(ret_value) +} /* H5Pget_obj_flush_cb() */ + + +/*------------------------------------------------------------------------- + * Function: H5Pset_mdc_log_options + * + * Purpose: Set metadata cache log options. + * + * Return: Non-negative on success/Negative on failure + * + *------------------------------------------------------------------------- + */ +herr_t +H5Pset_mdc_log_options(hid_t plist_id, hbool_t is_enabled, const char *location, + hbool_t start_on_access) +{ + H5P_genplist_t *plist; /* Property list pointer */ + char * tmp_location; /* Working location pointer */ + herr_t ret_value = SUCCEED; /* Return value */ + + FUNC_ENTER_API(FAIL) + H5TRACE4("e", "ib*sb", plist_id, is_enabled, location, start_on_access); + + /* Check arguments */ + if(H5P_DEFAULT == plist_id) + HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "can't modify default property list") + if(!location) + HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "location cannot be NULL") + + /* Get the property list structure */ + if(NULL == (plist = H5P_object_verify(plist_id, H5P_FILE_ACCESS))) + HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "plist_id is not a file access property list") + + /* Get the current location string and free it */ + if(H5P_get(plist, H5F_ACS_MDC_LOG_LOCATION_NAME, &tmp_location) < 0) + HGOTO_ERROR(H5E_PLIST, H5E_CANTGET, FAIL, "can't get current log location") + H5MM_xfree(tmp_location); + + /* Make a copy of the passed-in location */ + if(NULL == (tmp_location = H5MM_xstrdup(location))) + HGOTO_ERROR(H5E_PLIST, H5E_CANTCOPY, FAIL, "can't copy passed-in log location") + + /* Set values */ + if(H5P_set(plist, H5F_ACS_USE_MDC_LOGGING_NAME, &is_enabled) < 0) + HGOTO_ERROR(H5E_PLIST, H5E_CANTSET, FAIL, "can't set is_enabled flag") + if(H5P_set(plist, H5F_ACS_MDC_LOG_LOCATION_NAME, &tmp_location) < 0) + HGOTO_ERROR(H5E_PLIST, H5E_CANTSET, FAIL, "can't set log location") + if(H5P_set(plist, H5F_ACS_START_MDC_LOG_ON_ACCESS_NAME, &start_on_access) < 0) + HGOTO_ERROR(H5E_PLIST, H5E_CANTSET, FAIL, "can't set start_on_access flag") + +done: + FUNC_LEAVE_API(ret_value) +} /* end H5Pset_mdc_log_options() */ + + +/*------------------------------------------------------------------------- + * Function: H5Pget_mdc_log_options + * + * Purpose: Get metadata cache log options. + * + * Return: Non-negative on success/Negative on failure + * + *------------------------------------------------------------------------- + */ +herr_t +H5Pget_mdc_log_options(hid_t plist_id, hbool_t *is_enabled, char *location, + size_t *location_size, hbool_t *start_on_access) +{ + H5P_genplist_t *plist; /* Property list pointer */ + char *location_ptr; /* Pointer to location string */ + herr_t ret_value = SUCCEED; /* Return value */ + + FUNC_ENTER_API(FAIL) + H5TRACE5("e", "i*b*s*z*b", plist_id, is_enabled, location, location_size, + start_on_access); + + /* Get the property list structure */ + if(NULL == (plist = H5P_object_verify(plist_id, H5P_FILE_ACCESS))) + HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "plist_id is not a file access property list") + + /* Get simple values */ + if(is_enabled) + if(H5P_get(plist, H5F_ACS_USE_MDC_LOGGING_NAME, is_enabled) < 0) + HGOTO_ERROR(H5E_PLIST, H5E_CANTGET, FAIL, "can't get log location") + if(start_on_access) + if(H5P_get(plist, H5F_ACS_START_MDC_LOG_ON_ACCESS_NAME, start_on_access) < 0) + HGOTO_ERROR(H5E_PLIST, H5E_CANTGET, FAIL, "can't get start_on_access flag") + + /* Get the location */ + if(location || location_size) + if(H5P_get(plist, H5F_ACS_MDC_LOG_LOCATION_NAME, &location_ptr) < 0) + HGOTO_ERROR(H5E_PLIST, H5E_CANTGET, FAIL, "can't get log location") + + /* Copy log location to output buffer */ + if(location_ptr && location) + HDmemcpy(location, location_ptr, *location_size); + + /* Get location size, including terminating NULL */ + if(location_size) { + if(location_ptr) + *location_size = HDstrlen(location_ptr) + 1; + else + *location_size = 0; + } + +done: + FUNC_LEAVE_API(ret_value) +} /* end H5Pget_mdc_log_options() */ + + +/*------------------------------------------------------------------------- + * Function: H5P_facc_mdc_log_location_enc + * + * Purpose: Callback routine which is called whenever the metadata + * cache log location property in the file access property + * list is encoded. + * + * Return: Success: Non-negative + * Failure: Negative + * + *------------------------------------------------------------------------- + */ +static herr_t +H5P_facc_mdc_log_location_enc(const void *value, void **_pp, size_t *size) +{ + const char *log_location = *(const char * const *)value; + uint8_t **pp = (uint8_t **)_pp; + size_t len = 0; + uint64_t enc_value; + unsigned enc_size; + + FUNC_ENTER_NOAPI_NOINIT_NOERR + + HDcompile_assert(sizeof(size_t) <= sizeof(uint64_t)); + + /* calculate prefix length */ + if(NULL != log_location) + len = HDstrlen(log_location); + + enc_value = (uint64_t)len; + enc_size = H5VM_limit_enc_size(enc_value); + HDassert(enc_size < 256); + + if(NULL != *pp) { + /* encode the length of the prefix */ + *(*pp)++ = (uint8_t)enc_size; + UINT64ENCODE_VAR(*pp, enc_value, enc_size); + + /* encode the prefix */ + if(NULL != log_location) { + HDmemcpy(*(char **)pp, log_location, len); + *pp += len; + } /* end if */ + } /* end if */ + + *size += (1 + enc_size); + if(NULL != log_location) + *size += len; + + FUNC_LEAVE_NOAPI(SUCCEED) +} /* end H5P_facc_mdc_log_location_enc() */ + + +/*------------------------------------------------------------------------- + * Function: H5P_facc_mdc_log_location_dec + * + * Purpose: Callback routine which is called whenever the metadata + * cache log location property in the file access property + * list is decoded. + * + * Return: Success: Non-negative + * Failure: Negative + * + *------------------------------------------------------------------------- + */ +static herr_t +H5P_facc_mdc_log_location_dec(const void **_pp, void *_value) +{ + char **log_location = (char **)_value; + const uint8_t **pp = (const uint8_t **)_pp; + size_t len; + uint64_t enc_value; /* Decoded property value */ + unsigned enc_size; /* Size of encoded property */ + herr_t ret_value = SUCCEED; + + FUNC_ENTER_NOAPI_NOINIT + + HDassert(pp); + HDassert(*pp); + HDassert(log_location); + HDcompile_assert(sizeof(size_t) <= sizeof(uint64_t)); + + /* Decode the size */ + enc_size = *(*pp)++; + HDassert(enc_size < 256); + + /* Decode the value */ + UINT64DECODE_VAR(*pp, enc_value, enc_size); + len = enc_value; + + if(0 != len) { + /* Make a copy of the user's prefix string */ + if(NULL == (*log_location = (char *)H5MM_malloc(len + 1))) + HGOTO_ERROR(H5E_RESOURCE, H5E_CANTINIT, FAIL, "memory allocation failed for prefix") + HDstrncpy(*log_location, *(const char **)pp, len); + (*log_location)[len] = '\0'; + + *pp += len; + } /* end if */ + else + *log_location = NULL; + +done: + FUNC_LEAVE_NOAPI(ret_value) +} /* end H5P_facc_mdc_log_location_dec() */ + + +/*------------------------------------------------------------------------- + * Function: H5P_facc_mdc_log_location_del + * + * Purpose: Frees memory used to store the metadata cache log location. + * + * Return: Non-negative on success/Negative on failure + * + *------------------------------------------------------------------------- + */ +static herr_t +H5P_facc_mdc_log_location_del(hid_t H5_ATTR_UNUSED prop_id, const char H5_ATTR_UNUSED *name, + size_t H5_ATTR_UNUSED size, void *value) +{ + FUNC_ENTER_NOAPI_NOINIT_NOERR + + HDassert(value); + + H5MM_xfree(*(void **)value); + + FUNC_LEAVE_NOAPI(SUCCEED) +} /* end H5P_facc_mdc_log_location_del() */ + + +/*------------------------------------------------------------------------- + * Function: H5P_facc_mdc_log_location_copy + * + * Purpose: Creates a copy of the metadata cache log location string. + * + * Return: Non-negative on success/Negative on failure + * + *------------------------------------------------------------------------- + */ +static herr_t +H5P_facc_mdc_log_location_copy(const char H5_ATTR_UNUSED *name, size_t H5_ATTR_UNUSED size, void *value) +{ + FUNC_ENTER_NOAPI_NOINIT_NOERR + + HDassert(value); + + *(char **)value = H5MM_xstrdup(*(const char **)value); + + FUNC_LEAVE_NOAPI(SUCCEED) +} /* end H5P_facc_mdc_log_location_copy() */ + + +/*------------------------------------------------------------------------- + * Function: H5P_facc_mdc_log_location_cmp + * + * Purpose: Callback routine which is called whenever the metadata + * cache log location property in the file creation property + * list is compared. + * + * Return: zero if VALUE1 and VALUE2 are equal, non zero otherwise. + * + *------------------------------------------------------------------------- + */ +static int +H5P_facc_mdc_log_location_cmp(const void *value1, const void *value2, size_t H5_ATTR_UNUSED size) +{ + const char *pref1 = *(const char * const *)value1; + const char *pref2 = *(const char * const *)value2; + int ret_value = 0; + + FUNC_ENTER_NOAPI_NOINIT_NOERR + + if(NULL == pref1 && NULL != pref2) + HGOTO_DONE(1); + if(NULL != pref1 && NULL == pref2) + HGOTO_DONE(-1); + if(NULL != pref1 && NULL != pref2) + ret_value = HDstrcmp(pref1, pref2); + +done: + FUNC_LEAVE_NOAPI(ret_value) +} /* end H5P_facc_mdc_log_location_cmp() */ + + +/*------------------------------------------------------------------------- + * Function: H5P_facc_mdc_log_location_close + * + * Purpose: Frees memory used to store the metadata cache log location + * string + * + * Return: Non-negative on success/Negative on failure + * + *------------------------------------------------------------------------- + */ +static herr_t +H5P_facc_mdc_log_location_close(const char H5_ATTR_UNUSED *name, size_t H5_ATTR_UNUSED size, void *value) +{ + FUNC_ENTER_NOAPI_NOINIT_NOERR + + HDassert(value); + + H5MM_xfree(*(void **)value); + + FUNC_LEAVE_NOAPI(SUCCEED) +} /* end H5P_facc_mdc_log_location_close() */ + |