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[example] 格式化整理

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Meco Man
2021-03-07 08:34:04 +08:00
parent ce86058201
commit 08af426f01
30 changed files with 1063 additions and 1063 deletions
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examples/file/readwrite.c
+92 -92
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@@ -1,5 +1,5 @@
/*
* Copyright (c) 2006-2020, RT-Thread Development Team
* Copyright (c) 2006-2021, RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*
@@ -17,21 +17,21 @@
/* file read write test */
void readwrite(const char* filename)
{
int fd;
int index, length;
char* test_data;
char* buffer;
int block_size = TEST_DATA_LEN;
int fd;
int index, length;
char* test_data;
char* buffer;
int block_size = TEST_DATA_LEN;
/* open with write only & create */
fd = open(filename, O_WRONLY | O_CREAT | O_TRUNC, 0);
if (fd < 0)
{
rt_kprintf("open file for write failed\n");
return;
}
/* open with write only & create */
fd = open(filename, O_WRONLY | O_CREAT | O_TRUNC, 0);
if (fd < 0)
{
rt_kprintf("open file for write failed\n");
return;
}
test_data = rt_malloc(block_size);
test_data = rt_malloc(block_size);
if (test_data == RT_NULL)
{
rt_kprintf("no memory\n");
@@ -48,94 +48,94 @@ void readwrite(const char* filename)
return;
}
/* prepare some data */
for (index = 0; index < block_size; index ++)
{
test_data[index] = index + 27;
}
/* prepare some data */
for (index = 0; index < block_size; index ++)
{
test_data[index] = index + 27;
}
/* write to file */
length = write(fd, test_data, block_size);
if (length != block_size)
{
rt_kprintf("write data failed\n");
close(fd);
goto __exit;
}
/* write to file */
length = write(fd, test_data, block_size);
if (length != block_size)
{
rt_kprintf("write data failed\n");
close(fd);
goto __exit;
}
/* close file */
close(fd);
/* close file */
close(fd);
/* reopen the file with append to the end */
fd = open(filename, O_WRONLY | O_CREAT | O_APPEND, 0);
if (fd < 0)
{
rt_kprintf("open file for append write failed\n");
goto __exit;;
}
/* reopen the file with append to the end */
fd = open(filename, O_WRONLY | O_CREAT | O_APPEND, 0);
if (fd < 0)
{
rt_kprintf("open file for append write failed\n");
goto __exit;;
}
length = write(fd, test_data, block_size);
if (length != block_size)
{
rt_kprintf("append write data failed\n");
close(fd);
goto __exit;
}
/* close the file */
close(fd);
length = write(fd, test_data, block_size);
if (length != block_size)
{
rt_kprintf("append write data failed\n");
close(fd);
goto __exit;
}
/* close the file */
close(fd);
/* open the file for data validation. */
fd = open(filename, O_RDONLY, 0);
if (fd < 0)
{
rt_kprintf("check: open file for read failed\n");
goto __exit;
}
/* open the file for data validation. */
fd = open(filename, O_RDONLY, 0);
if (fd < 0)
{
rt_kprintf("check: open file for read failed\n");
goto __exit;
}
/* read the data (should be the data written by the first time ) */
length = read(fd, buffer, block_size);
if (length != block_size)
{
rt_kprintf("check: read file failed\n");
close(fd);
goto __exit;
}
/* read the data (should be the data written by the first time ) */
length = read(fd, buffer, block_size);
if (length != block_size)
{
rt_kprintf("check: read file failed\n");
close(fd);
goto __exit;
}
/* validate */
for (index = 0; index < block_size; index ++)
{
if (test_data[index] != buffer[index])
{
rt_kprintf("check: check data failed at %d\n", index);
close(fd);
goto __exit;
}
}
/* validate */
for (index = 0; index < block_size; index ++)
{
if (test_data[index] != buffer[index])
{
rt_kprintf("check: check data failed at %d\n", index);
close(fd);
goto __exit;
}
}
/* read the data (should be the second time data) */
length = read(fd, buffer, block_size);
if (length != block_size)
{
rt_kprintf("check: read file failed\n");
close(fd);
goto __exit;
}
/* read the data (should be the second time data) */
length = read(fd, buffer, block_size);
if (length != block_size)
{
rt_kprintf("check: read file failed\n");
close(fd);
goto __exit;
}
/* validate */
for (index = 0; index < block_size; index ++)
{
if (test_data[index] != buffer[index])
{
rt_kprintf("check: check data failed at %d\n", index);
close(fd);
goto __exit;
}
}
/* validate */
for (index = 0; index < block_size; index ++)
{
if (test_data[index] != buffer[index])
{
rt_kprintf("check: check data failed at %d\n", index);
close(fd);
goto __exit;
}
}
/* close the file */
close(fd);
/* print result */
rt_kprintf("read/write test successful!\n");
/* close the file */
close(fd);
/* print result */
rt_kprintf("read/write test successful!\n");
__exit:
rt_free(test_data);