removing (outdated) drawterm

drawterm is much better maintained by russ cox,
so removing this outdated copy.

for a more recent version, go to:

http://swtch.com/drawterm/

1 files changed, 0 insertions, 39 deletions

diff --git a/sys/src/cmd/unix/drawterm/kern/rwlock.c b/sys/src/cmd/unix/drawterm/kern/rwlock.c
deleted file mode 100644
index 3381957a3..000000000
--- a/sys/src/cmd/unix/drawterm/kern/rwlock.c
+++ /dev/null
@@ -1,39 +0,0 @@
-#include "u.h"
-#include "lib.h"
-#include "dat.h"
-#include "fns.h"
-#include "error.h"
-
-void
-rlock(RWlock *l)
-{
-	qlock(&l->x);		/* wait here for writers and exclusion */
-	lock(&l->lk);
-	l->readers++;
-	canqlock(&l->k);	/* block writers if we are the first reader */
-	unlock(&l->lk);
-	qunlock(&l->x);
-}
-
-void
-runlock(RWlock *l)
-{
-	lock(&l->lk);
-	if(--l->readers == 0)	/* last reader out allows writers */
-		qunlock(&l->k);
-	unlock(&l->lk);
-}
-
-void
-wlock(RWlock *l)
-{
-	qlock(&l->x);		/* wait here for writers and exclusion */
-	qlock(&l->k);		/* wait here for last reader */
-}
-
-void
-wunlock(RWlock *l)
-{
-	qunlock(&l->k);
-	qunlock(&l->x);
-}