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reformat the coding style in dfs_ramfs.c

This commit is contained in:
yiyue.fang 2013-06-29 10:43:03 +08:00
parent 03cf76e7ef
commit 873a5de811
1 changed files with 26 additions and 14 deletions
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40
components/dfs/filesystems/ramfs/dfs_ramfs.c
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@ -38,7 +38,7 @@ int dfs_ramfs_mount(struct dfs_filesystem *fs,
if (data == RT_NULL)
return -DFS_STATUS_EIO;
ramfs = (struct dfs_ramfs*) data;
ramfs = (struct dfs_ramfs *)data;
fs->data = ramfs;
return DFS_STATUS_OK;
@ -47,6 +47,7 @@ int dfs_ramfs_mount(struct dfs_filesystem *fs,
int dfs_ramfs_unmount(struct dfs_filesystem *fs)
{
fs->data = RT_NULL;
return DFS_STATUS_OK;
}
@ -58,9 +59,9 @@ int dfs_ramfs_statfs(struct dfs_filesystem *fs, struct statfs *buf)
RT_ASSERT(ramfs != RT_NULL);
RT_ASSERT(buf != RT_NULL);
buf->f_bsize = 512;
buf->f_bsize = 512;
buf->f_blocks = ramfs->memheap.pool_size/512;
buf->f_bfree = ramfs->memheap.available_size/512;
buf->f_bfree = ramfs->memheap.available_size/512;
return DFS_STATUS_OK;
}
@ -78,7 +79,8 @@ struct ramfs_dirent *dfs_ramfs_lookup(struct dfs_ramfs *ramfs,
struct ramfs_dirent *dirent;
subpath = path;
while (*subpath == '/' && *subpath) subpath ++;
while (*subpath == '/' && *subpath)
subpath ++;
if (! *subpath) /* is root directory */
{
*size = 0;
@ -222,7 +224,9 @@ int dfs_ramfs_open(struct dfs_fd *file)
char *name_ptr;
/* create a file entry */
dirent = (struct ramfs_dirent*)rt_memheap_alloc(&(ramfs->memheap), sizeof(struct ramfs_dirent));
dirent = (struct ramfs_dirent *)
rt_memheap_alloc(&(ramfs->memheap),
sizeof(struct ramfs_dirent));
if (dirent == RT_NULL)
{
return -DFS_STATUS_ENOMEM;
@ -244,7 +248,9 @@ int dfs_ramfs_open(struct dfs_fd *file)
return -DFS_STATUS_ENOENT;
}
/* Creates a new file. If the file is existing, it is truncated and overwritten. */
/* Creates a new file.
* If the file is existing, it is truncated and overwritten.
*/
if (file->flags & DFS_O_TRUNC)
{
dirent->size = 0;
@ -263,7 +269,9 @@ int dfs_ramfs_open(struct dfs_fd *file)
return DFS_STATUS_OK;
}
int dfs_ramfs_stat(struct dfs_filesystem *fs, const char *path, struct stat *st)
int dfs_ramfs_stat(struct dfs_filesystem *fs,
const char *path,
struct stat *st)
{
rt_size_t size;
struct ramfs_dirent *dirent;
@ -286,20 +294,24 @@ int dfs_ramfs_stat(struct dfs_filesystem *fs, const char *path, struct stat *st)
return DFS_STATUS_OK;
}
int dfs_ramfs_getdents(struct dfs_fd *file, struct dirent *dirp, rt_uint32_t count)
int dfs_ramfs_getdents(struct dfs_fd *file,
struct dirent *dirp,
rt_uint32_t count)
{
rt_size_t index, end;
struct dirent *d;
struct ramfs_dirent *dirent;
struct dfs_ramfs* ramfs;
struct dfs_ramfs *ramfs;
ramfs = (struct dfs_ramfs*)file->fs->data;
ramfs = (struct dfs_ramfs *)file->fs->data;
dirent = (struct ramfs_dirent *)file->data;
if (dirent != &(ramfs->root)) return -DFS_STATUS_EINVAL;
if (dirent != &(ramfs->root))
return -DFS_STATUS_EINVAL;
/* make integer count */
count = (count / sizeof(struct dirent));
if (count == 0) return -DFS_STATUS_EINVAL;
if (count == 0)
return -DFS_STATUS_EINVAL;
end = file->pos + count;
index = 0;
@ -406,8 +418,8 @@ struct dfs_ramfs* dfs_ramfs_create(rt_uint8_t *pool, rt_size_t size)
rt_uint8_t *data_ptr;
rt_err_t result;
size = RT_ALIGN_DOWN(size, RT_ALIGN_SIZE);
ramfs = (struct dfs_ramfs*) pool;
size = RT_ALIGN_DOWN(size, RT_ALIGN_SIZE);
ramfs = (struct dfs_ramfs *)pool;
data_ptr = (rt_uint8_t *)(ramfs + 1);
size = size - sizeof(struct dfs_ramfs);