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implement flockfile api, rework stdio locking
[musl]
/
src
/
internal
/
libc.h
diff --git
a/src/internal/libc.h
b/src/internal/libc.h
index
e81ef76
..
3d09bf6
100644
(file)
--- a/
src/internal/libc.h
+++ b/
src/internal/libc.h
@@
-15,6
+15,9
@@
struct __libc {
int (*rsyscall)(int, long, long, long, long, long, long);
void (**tsd_keys)(void *);
void (*fork_handler)(int);
int (*rsyscall)(int, long, long, long, long, long, long);
void (**tsd_keys)(void *);
void (*fork_handler)(int);
+ FILE *ofl_head;
+ int ofl_lock;
+ void (*lockfile)(FILE *);
};
};
@@
-36,6
+39,7
@@
extern struct __libc *__libc_loc(void) __attribute__((const));
/* Designed to avoid any overhead in non-threaded processes */
void __lock(volatile int *);
/* Designed to avoid any overhead in non-threaded processes */
void __lock(volatile int *);
+void __lockfile(FILE *);
#define LOCK(x) (libc.threads_minus_1 ? (__lock(x),1) : ((void)(x),1))
#define UNLOCK(x) (*(x)=0)
#define CANCELPT(x) (libc.cancelpt ? libc.cancelpt((x)),0 : (void)(x),0)
#define LOCK(x) (libc.threads_minus_1 ? (__lock(x),1) : ((void)(x),1))
#define UNLOCK(x) (*(x)=0)
#define CANCELPT(x) (libc.cancelpt ? libc.cancelpt((x)),0 : (void)(x),0)