#define UNGET 4
-#define FLOCK(f) LOCK(&f->lock)
-#define FUNLOCK(f) UNLOCK(&f->lock)
+#define FLOCK(f) ((libc.lockfile && (f)->owner>=0) ? (libc.lockfile((f)),0) : 0)
+#define FUNLOCK(f) ((f)->lockcount && (--(f)->lockcount || ((f)->owner=(f)->lock=0)))
#define F_PERM 1
#define F_NORD 4
signed char lbf;
int lock;
int lockcount;
- void *owner;
+ void *cookie;
off_t off;
int (*flush)(FILE *);
void **wide_data; /* must be NULL */
off_t (*seek)(FILE *, off_t, int);
int mode;
int (*close)(FILE *);
+ int owner;
};
size_t __stdio_read(FILE *, unsigned char *, size_t);
FILE *__fdopen(int, const char *);
-extern struct ofl
-{
- FILE *head;
- int lock;
-} __ofl;
-
-#define OFLLOCK() LOCK(&__ofl.lock)
-#define OFLUNLOCK() UNLOCK(&__ofl.lock)
-#define ofl_head (__ofl.head)
+#define OFLLOCK() LOCK(&libc.ofl_lock)
+#define OFLUNLOCK() UNLOCK(&libc.ofl_lock)
+#define ofl_head (libc.ofl_head)
#define feof(f) ((f)->flags & F_EOF)
#define ferror(f) ((f)->flags & F_ERR)