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authorRich Felker <dalias@aerifal.cx>2011-03-12 21:55:45 -0500
committerRich Felker <dalias@aerifal.cx>2011-03-12 21:55:45 -0500
commit5eb0d33ec0f08b123c5c10877d6258d05fa9453a (patch)
tree85ff7f5397424685d89af8176ff7ce6d6f46f6e2 /src/internal/libc.h
parentd8d19f4d46284d5b6124710a5235b6fe090c013f (diff)
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implement flockfile api, rework stdio locking
Diffstat (limited to 'src/internal/libc.h')
-rw-r--r--src/internal/libc.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/src/internal/libc.h b/src/internal/libc.h
index e81ef760..3d09bf6a 100644
--- 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);
+ 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 *);
+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)