added tput(1)

sys/src/cmd/tput.c

@@ -0,0 +1,42 @@
+#include <u.h>
+#include <libc.h>
+
+enum {buflen = 4096};
+
+void
+main(int argc, char **argv)
+{
+	int rc, cpid, fd, dopipe;
+	static char buf[buflen];
+	static uvlong bc, sec;
+	double speed;
+	
+	dopipe = 0;
+	ARGBEGIN {
+	case 'p': dopipe = 1;
+	} ARGEND
+	
+	bc = 0;
+	sec = 0;
+	cpid = rfork(RFPROC | RFMEM);
+	if(cpid == 0) {
+		while(1) {
+			sleep(1000);
+			speed = bc / ++sec;
+			if(speed >= 1073741824) fprint(2, "%.2f GB/s\n", speed / 1073741824);
+			else if(speed >= 1048576) fprint(2, "%.2f MB/s\n", speed / 1048576);
+			else if(speed >= 1024) fprint(2, "%.2f KB/s\n", speed / 1024);
+			else fprint(2, "%.2f B/s\n", speed);
+		}
+	}
+	while(1) {
+		rc = read(0, buf, buflen);
+		if(rc <= 0) break;
+		if(dopipe) write(1, buf, rc);
+		bc += rc;
+	}
+	sprint(buf, "/proc/%d/note", cpid);
+	fd = open(buf, OWRITE);
+	write(fd, "kill", 4);
+	if(rc < 0) sysfatal("%r");
+}