1 files changed, 62 insertions, 0 deletions
diff --git a/src/libthread/tprimes.c b/src/libthread/tprimes.c
new file mode 100644
index 00000000..9426bdfa
--- /dev/null
+++ b/src/libthread/tprimes.c
@@ -0,0 +1,62 @@
+#include <lib9.h>
+#include <thread.h>
+
+int quiet;
+int goal;
+int buffer;
+int (*fn)(void(*)(void*), void*, uint) = threadcreate;
+
+void
+primethread(void *arg)
+{
+	Channel *c, *nc;
+	int p, i;
+
+	c = arg;
+	p = recvul(c);
+	if(p > goal)
+		threadexitsall(nil);
+	if(!quiet)
+		print("%d\n", p);
+	nc = chancreate(sizeof(ulong), buffer);
+	(*fn)(primethread, nc, 8192);
+	for(;;){
+		i = recvul(c);
+		if(i%p)
+			sendul(nc, i);
+	}
+}
+
+extern int _threaddebuglevel;
+
+void
+threadmain(int argc, char **argv)
+{
+	int i;
+	Channel *c;
+
+	ARGBEGIN{
+	case 'D':
+		_threaddebuglevel = atoi(ARGF());
+		break;
+	case 'q':
+		quiet = 1;
+		break;
+	case 'b':
+		buffer = atoi(ARGF());
+		break;
+	case 'p':
+		fn=proccreate;
+		break;
+	}ARGEND
+
+	if(argc>0)
+		goal = atoi(argv[0]);
+	else
+		goal = 100;
+
+	c = chancreate(sizeof(ulong), buffer);
+	(*fn)(primethread, c, 8192);
+	for(i=2;; i++)
+		sendul(c, i);
+}