diff options
Diffstat (limited to 'test/external_common.c')
-rw-r--r-- | test/external_common.c | 121 |
1 files changed, 121 insertions, 0 deletions
diff --git a/test/external_common.c b/test/external_common.c new file mode 100644 index 0000000..e43a713 --- /dev/null +++ b/test/external_common.c @@ -0,0 +1,121 @@ +/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * + * Copyright by The HDF Group. * + * Copyright by the Board of Trustees of the University of Illinois. * + * 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. * + * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */ + +/* + * Programmer: Raymond Lu <songyulu@hdfgroup.org> + * April, 2019 + * + * Purpose: Private function for external.c and external_env.c + */ + +#include "external_common.h" + + +/*------------------------------------------------------------------------- + * Function: reset_raw_data_files + * + * Purpose: Resets the data in the raw data files for tests that + * perform dataset I/O on a set of files. + * + * Return: SUCCEED/FAIL + * + * Programmer: Dana Robinson + * February 2016 + * + *------------------------------------------------------------------------- + */ +herr_t +reset_raw_data_files(void) +{ + int fd = 0; /* external file descriptor */ + size_t i, j; /* iterators */ + hssize_t n; /* bytes of I/O */ + char filename[1024]; /* file name */ + int data[PART_SIZE]; /* raw data buffer */ + uint8_t *garbage = NULL; /* buffer of garbage data */ + size_t garbage_count; /* size of garbage buffer */ + size_t garbage_bytes; /* # of garbage bytes written to file */ + + /* Set up garbage buffer */ + garbage_count = N_EXT_FILES * GARBAGE_PER_FILE; + if(NULL == (garbage = (uint8_t *)HDcalloc(garbage_count, sizeof(uint8_t)))) + goto error; + for(i = 0; i < garbage_count; i++) + garbage[i] = 0xFF; + + /* The *r files are pre-filled with data and are used to + * verify that read operations work correctly. + */ + for(i = 0; i < N_EXT_FILES; i++) { + + /* Open file */ + HDsprintf(filename, "extern_%lur.raw", (unsigned long)i + 1); + if((fd = HDopen(filename, O_RDWR|O_CREAT|O_TRUNC, H5_POSIX_CREATE_MODE_RW)) < 0) + goto error; + + /* Write garbage data to the file. This allows us to test the + * the ability to set an offset in the raw data file. + */ + garbage_bytes = i * 10; + n = HDwrite(fd, garbage, garbage_bytes); + if(n < 0 || (size_t)n != garbage_bytes) + goto error; + + /* Fill array with data */ + for(j = 0; j < PART_SIZE; j++) { + data[j] = (int)(i * 25 + j); + } /* end for */ + + /* Write raw data to the file. */ + n = HDwrite(fd, data, sizeof(data)); + if(n != sizeof(data)) + goto error; + + /* Close this file */ + HDclose(fd); + + } /* end for */ + + /* The *w files are only pre-filled with the garbage data and are + * used to verify that write operations work correctly. The individual + * tests fill in the actual data. + */ + for(i = 0; i < N_EXT_FILES; i++) { + + /* Open file */ + HDsprintf(filename, "extern_%luw.raw", (unsigned long)i + 1); + if((fd = HDopen(filename, O_RDWR|O_CREAT|O_TRUNC, H5_POSIX_CREATE_MODE_RW)) < 0) + goto error; + + /* Write garbage data to the file. This allows us to test the + * the ability to set an offset in the raw data file. + */ + garbage_bytes = i * 10; + n = HDwrite(fd, garbage, garbage_bytes); + if(n < 0 || (size_t)n != garbage_bytes) + goto error; + + /* Close this file */ + HDclose(fd); + + } /* end for */ + HDfree(garbage); + return SUCCEED; + +error: + if(fd) + HDclose(fd); + if(garbage) + HDfree(garbage); + return FAIL; +} |