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vfs, fatfs: Add file truncate for fatfs

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This commit is contained in:
Renz Bagaporo
2018-06-12 18:29:05 +08:00
committed by Renz Christian Bagaporo
parent 0e501e5edd
commit ea711f2ee9
9 changed files with 214 additions and 2 deletions
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components/vfs/vfs.c
+14
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@@ -717,6 +717,20 @@ int access(const char *path, int amode)
return ret;
}
int truncate(const char *path, off_t length)
{
int ret;
const vfs_entry_t* vfs = get_vfs_for_path(path);
struct _reent* r = __getreent();
if (vfs == NULL) {
__errno_r(r) = ENOENT;
return -1;
}
const char* path_within_vfs = translate_path(vfs, path);
CHECK_AND_CALL(ret, r, vfs, truncate, path_within_vfs, length);
return ret;
}
static void call_end_selects(int end_index, const fds_triple_t *vfs_fds_triple)
{
for (int i = 0; i < end_index; ++i) {