167 lines
3.6 KiB
C
167 lines
3.6 KiB
C
/*
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* Copyright (c) 2006-2021, RT-Thread Development Team
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*
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* SPDX-License-Identifier: Apache-2.0
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*
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* Change Logs:
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* Date Author Notes
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* 2010-02-10 Bernard first version
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* 2020-04-12 Jianjia Ma add msh cmd
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*/
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#include <rtthread.h>
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#include <dfs_posix.h>
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#define TEST_DATA_LEN 120
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/* file read write test */
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void readwrite(const char* filename)
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{
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int fd;
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int index, length;
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char* test_data;
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char* buffer;
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int block_size = TEST_DATA_LEN;
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/* open with write only & create */
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fd = open(filename, O_WRONLY | O_CREAT | O_TRUNC, 0);
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if (fd < 0)
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{
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rt_kprintf("open file for write failed\n");
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return;
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}
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test_data = rt_malloc(block_size);
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if (test_data == RT_NULL)
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{
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rt_kprintf("no memory\n");
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close(fd);
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return;
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}
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buffer = rt_malloc(block_size);
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if (buffer == RT_NULL)
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{
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rt_kprintf("no memory\n");
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close(fd);
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rt_free(test_data);
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return;
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}
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/* prepare some data */
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for (index = 0; index < block_size; index ++)
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{
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test_data[index] = index + 27;
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}
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/* write to file */
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length = write(fd, test_data, block_size);
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if (length != block_size)
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{
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rt_kprintf("write data failed\n");
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close(fd);
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goto __exit;
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}
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/* close file */
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close(fd);
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/* reopen the file with append to the end */
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fd = open(filename, O_WRONLY | O_CREAT | O_APPEND, 0);
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if (fd < 0)
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{
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rt_kprintf("open file for append write failed\n");
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goto __exit;;
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}
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length = write(fd, test_data, block_size);
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if (length != block_size)
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{
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rt_kprintf("append write data failed\n");
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close(fd);
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goto __exit;
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}
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/* close the file */
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close(fd);
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/* open the file for data validation. */
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fd = open(filename, O_RDONLY, 0);
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if (fd < 0)
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{
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rt_kprintf("check: open file for read failed\n");
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goto __exit;
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}
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/* read the data (should be the data written by the first time ) */
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length = read(fd, buffer, block_size);
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if (length != block_size)
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{
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rt_kprintf("check: read file failed\n");
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close(fd);
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goto __exit;
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}
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/* validate */
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for (index = 0; index < block_size; index ++)
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{
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if (test_data[index] != buffer[index])
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{
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rt_kprintf("check: check data failed at %d\n", index);
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close(fd);
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goto __exit;
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}
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}
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/* read the data (should be the second time data) */
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length = read(fd, buffer, block_size);
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if (length != block_size)
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{
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rt_kprintf("check: read file failed\n");
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close(fd);
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goto __exit;
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}
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/* validate */
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for (index = 0; index < block_size; index ++)
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{
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if (test_data[index] != buffer[index])
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{
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rt_kprintf("check: check data failed at %d\n", index);
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close(fd);
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goto __exit;
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}
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}
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/* close the file */
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close(fd);
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/* print result */
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rt_kprintf("read/write test successful!\n");
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__exit:
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rt_free(test_data);
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rt_free(buffer);
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}
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#ifdef RT_USING_FINSH
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#include <finsh.h>
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/* export to finsh */
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FINSH_FUNCTION_EXPORT(readwrite, perform file read and write test);
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static void cmd_readwrite(int argc, char *argv[])
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{
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char* filename;
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if(argc == 2)
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{
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filename = argv[1];
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}
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else
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{
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rt_kprintf("Usage: readwrite [file_path]\n");
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return;
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}
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readwrite(filename);
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}
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FINSH_FUNCTION_EXPORT_ALIAS(cmd_readwrite, __cmd_readwrite, perform file read and write test);
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#endif /* RT_USING_FINSH */
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