1 files changed, 0 insertions, 57 deletions
diff --git a/src/lib9/lock-tas.c b/src/lib9/lock-tas.c
deleted file mode 100644
index e6f54de6..00000000
--- a/src/lib9/lock-tas.c
+++ /dev/null
@@ -1,57 +0,0 @@
-#include <u.h>
-#include <unistd.h>
-#include <sys/time.h>
-#include <sched.h>
-#include <libc.h>
-
-int _ntas;
-static int
-_xtas(void *v)
-{
-	int x;
-
-	_ntas++;
-	x = _tas(v);
-	if(x != 0 && x != 0xcafebabe){
-		print("bad tas value %d\n", x);
-		abort();
-	}
-	return x;
-}
-
-int
-canlock(Lock *l)
-{
-	return !_xtas(&l->val);
-}
-
-void
-unlock(Lock *l)
-{
-	l->val = 0;
-}
-
-void
-lock(Lock *lk)
-{
-	int i;
-
-	/* once fast */
-	if(!_xtas(&lk->val))
-		return;
-	/* a thousand times pretty fast */
-	for(i=0; i<1000; i++){
-		if(!_xtas(&lk->val))
-			return;
-		sched_yield();
-	}
-	/* now nice and slow */
-	for(i=0; i<1000; i++){
-		if(!_xtas(&lk->val))
-			return;
-		usleep(100*1000);
-	}
-	/* take your time */
-	while(_xtas(&lk->val))
-		usleep(1000*1000);
-}