[rtlibc] remove libc_dirent.h

components/dfs/include/dfs.h

@@ -16,10 +16,13 @@
 #include <stdlib.h>
 #include <string.h>
 
-#include <time.h>
-#include <rtthread.h>
+#include <sys/time.h>
 #include <rtdevice.h>
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 #ifndef DFS_FILESYSTEMS_MAX
 #define DFS_FILESYSTEMS_MAX     2
 #endif
@@ -63,9 +66,7 @@
 #define DFS_F_EOF               0x04000000
 #define DFS_F_ERR               0x08000000
 
-#ifdef __cplusplus
-extern "C" {
-#endif
+#include <dirent.h>
 
 struct statfs
 {
@@ -74,14 +75,6 @@ struct statfs
     size_t f_bfree;   /* free blocks in file system */
 };
 
-struct dirent
-{
-    uint8_t d_type;           /* The type of the file */
-    uint8_t d_namlen;         /* The length of the not including the terminating null file name */
-    uint16_t d_reclen;        /* length of this record */
-    char d_name[DFS_PATH_MAX];   /* The null-terminated file name */
-};
-
 struct dfs_fdtable
 {
     uint32_t maxfd;

components/dfs/include/dfs_posix.h

@@ -21,14 +21,6 @@
 extern "C" {
 #endif
 
-typedef struct
-{
-    int fd;     /* directory file */
-    char buf[512];
-    int num;
-    int cur;
-} DIR;
-
 /* directory api*/
 int mkdir(const char *path, mode_t mode);
 DIR *opendir(const char *name);