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https://github.com/HDFGroup/hdf5.git
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128 lines
4.6 KiB
C
128 lines
4.6 KiB
C
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
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* Copyright by The HDF Group. *
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* Copyright by the Board of Trustees of the University of Illinois. *
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* All rights reserved. *
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* *
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* This file is part of HDF5. The full HDF5 copyright notice, including *
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* terms governing use, modification, and redistribution, is contained in *
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* the COPYING file, which can be found at the root of the source code *
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* distribution tree, or in https://support.hdfgroup.org/ftp/HDF5/releases. *
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* If you do not have access to either file, you may request a copy from *
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* help@hdfgroup.org. *
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* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
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/*
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* Programmer: Raymond Lu <songyulu@hdfgroup.org>
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* April, 2019
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*
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* Purpose: Private function for external.c and external_env.c
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*/
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#include "external_common.h"
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/*-------------------------------------------------------------------------
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* Function: reset_raw_data_files
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*
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* Purpose: Resets the data in the raw data files for tests that
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* perform dataset I/O on a set of files.
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*
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* Return: SUCCEED/FAIL
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*
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* Programmer: Dana Robinson
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* February 2016
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*
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*-------------------------------------------------------------------------
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*/
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herr_t
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reset_raw_data_files(hbool_t is_env)
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{
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int fd = 0; /* external file descriptor */
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size_t i, j; /* iterators */
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hssize_t n; /* bytes of I/O */
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char filename[1024]; /* file name */
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int data[PART_SIZE]; /* raw data buffer */
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uint8_t *garbage = NULL; /* buffer of garbage data */
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size_t garbage_count; /* size of garbage buffer */
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size_t garbage_bytes; /* # of garbage bytes written to file */
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/* Set up garbage buffer */
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garbage_count = N_EXT_FILES * GARBAGE_PER_FILE;
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if(NULL == (garbage = (uint8_t *)HDcalloc(garbage_count, sizeof(uint8_t))))
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goto error;
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for(i = 0; i < garbage_count; i++)
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garbage[i] = 0xFF;
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/* The *r files are pre-filled with data and are used to
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* verify that read operations work correctly.
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*/
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for(i = 0; i < N_EXT_FILES; i++) {
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/* Open file */
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if(is_env)
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HDsprintf(filename, "extern_env_%lur.raw", (unsigned long)i + 1);
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else
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HDsprintf(filename, "extern_%lur.raw", (unsigned long)i + 1);
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if((fd = HDopen(filename, O_RDWR|O_CREAT|O_TRUNC, H5_POSIX_CREATE_MODE_RW)) < 0)
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goto error;
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/* Write garbage data to the file. This allows us to test the
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* the ability to set an offset in the raw data file.
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*/
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garbage_bytes = i * 10;
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n = HDwrite(fd, garbage, garbage_bytes);
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if(n < 0 || (size_t)n != garbage_bytes)
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goto error;
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/* Fill array with data */
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for(j = 0; j < PART_SIZE; j++) {
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data[j] = (int)(i * 25 + j);
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} /* end for */
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/* Write raw data to the file. */
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n = HDwrite(fd, data, sizeof(data));
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if(n != sizeof(data))
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goto error;
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/* Close this file */
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HDclose(fd);
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} /* end for */
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/* The *w files are only pre-filled with the garbage data and are
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* used to verify that write operations work correctly. The individual
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* tests fill in the actual data.
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*/
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for(i = 0; i < N_EXT_FILES; i++) {
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/* Open file */
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if(is_env)
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HDsprintf(filename, "extern_env_%luw.raw", (unsigned long)i + 1);
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else
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HDsprintf(filename, "extern_%luw.raw", (unsigned long)i + 1);
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if((fd = HDopen(filename, O_RDWR|O_CREAT|O_TRUNC, H5_POSIX_CREATE_MODE_RW)) < 0)
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goto error;
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/* Write garbage data to the file. This allows us to test the
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* the ability to set an offset in the raw data file.
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*/
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garbage_bytes = i * 10;
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n = HDwrite(fd, garbage, garbage_bytes);
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if(n < 0 || (size_t)n != garbage_bytes)
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goto error;
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/* Close this file */
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HDclose(fd);
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} /* end for */
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HDfree(garbage);
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return SUCCEED;
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error:
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if(fd)
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HDclose(fd);
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if(garbage)
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HDfree(garbage);
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return FAIL;
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}
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