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-rw-r--r--src/H5VLnative_token.c157
1 files changed, 157 insertions, 0 deletions
diff --git a/src/H5VLnative_token.c b/src/H5VLnative_token.c
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+/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
+ * 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() */
+