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author | Dana Robinson <derobins@hdfgroup.org> | 2020-01-16 21:29:34 (GMT) |
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committer | David Young <dyoung@hdfgroup.org> | 2020-05-20 14:31:50 (GMT) |
commit | 3e6a192e9cef92ee1e0cf1842d05995da83efd27 (patch) | |
tree | 3cd0e18b9a50af6fc00a30a7da24d016b07efbb7 /src/H5VLnative_token.c | |
parent | 335fc0096c4287c1121c45c85085e67e5735c47d (diff) | |
download | hdf5-3e6a192e9cef92ee1e0cf1842d05995da83efd27.zip hdf5-3e6a192e9cef92ee1e0cf1842d05995da83efd27.tar.gz hdf5-3e6a192e9cef92ee1e0cf1842d05995da83efd27.tar.bz2 |
Squashed commit of the token_refactoring branch:
Diffstat (limited to 'src/H5VLnative_token.c')
-rw-r--r-- | src/H5VLnative_token.c | 157 |
1 files changed, 157 insertions, 0 deletions
diff --git a/src/H5VLnative_token.c b/src/H5VLnative_token.c new file mode 100644 index 0000000..2b5429e --- /dev/null +++ b/src/H5VLnative_token.c @@ -0,0 +1,157 @@ +/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * + * Copyright by The HDF Group. * + * All rights reserved. * + * * + * This file is part of HDF5. The full HDF5 copyright notice, including * + * terms governing use, modification, and redistribution, is contained in * + * the COPYING file, which can be found at the root of the source code * + * distribution tree, or in https://support.hdfgroup.org/ftp/HDF5/releases. * + * If you do not have access to either file, you may request a copy from * + * help@hdfgroup.org. * + * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */ + +/* + * Purpose: Object token callbacks for the native VOL connector + */ + +/***********/ +/* Headers */ +/***********/ +#include "H5private.h" /* Generic Functions */ +#include "H5Eprivate.h" /* Error handling */ +#include "H5MMprivate.h" /* Memory handling */ +#include "H5VLnative_private.h" /* Native VOL connector */ + +/****************/ +/* Local Macros */ +/****************/ + + +/******************/ +/* Local Typedefs */ +/******************/ + + +/********************/ +/* Local Prototypes */ +/********************/ + + +/*********************/ +/* Package Variables */ +/*********************/ + + +/*****************************/ +/* Library Private Variables */ +/*****************************/ + + +/*******************/ +/* Local Variables */ +/*******************/ + + + +/*--------------------------------------------------------------------------- + * Function: H5VL__native_token_cmp + * + * Purpose: Compare two of the connector's object tokens, setting + * *cmp_value, following the same rules as strcmp(). + * + * Return: Success: 0 + * Failure: (can't fail) + * + *--------------------------------------------------------------------------- + */ +herr_t +H5VL__native_token_cmp(void H5_ATTR_UNUSED *obj, + const H5O_token_t *token1, const H5O_token_t *token2, int *cmp_value) +{ + herr_t ret_value = SUCCEED; + + FUNC_ENTER_PACKAGE_NOERR + + /* Check parameters */ + HDassert(token1); + HDassert(token2); + + *cmp_value = HDmemcmp(token1, token2, sizeof(H5O_token_t)); + + FUNC_LEAVE_NOAPI(ret_value) +} /* end H5VL__native_token_cmp() */ + + +/*--------------------------------------------------------------------------- + * Function: H5VL__native_token_to_str + * + * Purpose: Serialize an object token into a string + * + * Return: Success: 0 + * Failure: -1 + * + *--------------------------------------------------------------------------- + */ +herr_t +H5VL__native_token_to_str(void *obj, H5I_type_t obj_type, const H5O_token_t *token, + char **token_str) +{ + haddr_t addr; + size_t addr_ndigits; + herr_t ret_value = SUCCEED; + + FUNC_ENTER_PACKAGE + + /* Check parameters */ + HDassert(obj); + HDassert(token); + + if(H5VL_native_token_to_addr(obj, obj_type, *token, &addr) < 0) + HGOTO_ERROR(H5E_FILE, H5E_CANTDECODE, FAIL, "can't convert object token to address") + + if(addr == 0) + addr_ndigits = 1; + else + addr_ndigits = (size_t)(HDfloor(HDlog10((double)addr)) + 1); + + if(NULL == (*token_str = H5MM_malloc(addr_ndigits + 1))) + HGOTO_ERROR(H5E_RESOURCE, H5E_CANTALLOC, FAIL, "can't allocate buffer for token string") + + HDsnprintf(*token_str, addr_ndigits + 1, H5_PRINTF_HADDR_FMT, addr); + +done: + FUNC_LEAVE_NOAPI(ret_value) +} /* end H5VL__native_token_to_str() */ + + +/*--------------------------------------------------------------------------- + * Function: H5VL__native_str_to_token + * + * Purpose: Deserialize a string into an object token + * + * Return: Success: 0 + * Failure: -1 + * + *--------------------------------------------------------------------------- + */ +herr_t +H5VL__native_str_to_token(void *obj, H5I_type_t obj_type, + const char *token_str, H5O_token_t *token) +{ + haddr_t addr; + herr_t ret_value = SUCCEED; + + FUNC_ENTER_PACKAGE + + /* Check parameters */ + HDassert(token_str); + + HDsscanf(token_str, H5_PRINTF_HADDR_FMT, &addr); + + if(H5VL_native_addr_to_token(obj, obj_type, addr, token) < 0) + HGOTO_ERROR(H5E_FILE, H5E_CANTDECODE, FAIL, "can't convert address to object token") + +done: + FUNC_LEAVE_NOAPI(ret_value) +} /* end H5VL__native_str_to_token() */ + |