Various additions and fixes.
diff --git a/src/lib9/time.c b/src/lib9/time.c
new file mode 100644
index 0000000..169a82f
--- /dev/null
+++ b/src/lib9/time.c
@@ -0,0 +1,58 @@
+#include <sys/time.h>
+#include <sys/resource.h>
+
+#include <u.h>
+#define NOPLAN9DEFINES
+#include <libc.h>
+
+long
+p9times(long *t)
+{
+ struct rusage ru, cru;
+
+ if(getrusage(0, &ru) < 0 || getrusage(-1, &cru) < 0)
+ return -1;
+
+ t[0] = ru.ru_utime.tv_sec*1000 + ru.ru_utime.tv_usec/1000;
+ t[1] = ru.ru_stime.tv_sec*1000 + ru.ru_stime.tv_usec/1000;
+ t[2] = cru.ru_utime.tv_sec*1000 + cru.ru_utime.tv_usec/1000;
+ t[3] = cru.ru_stime.tv_sec*1000 + cru.ru_stime.tv_usec/1000;
+
+ /* BUG */
+ return t[0]+t[1]+t[2]+t[3];
+}
+
+double
+p9cputime(void)
+{
+ long t[4];
+ double d;
+
+ if(p9times(t) < 0)
+ return -1.0;
+
+ d = (double)t[0]+(double)t[1]+(double)t[2]+(double)t[3];
+ return d/1000.0;
+}
+
+vlong
+p9nsec(void)
+{
+ struct timeval tv;
+
+ if(gettimeofday(&tv, 0) < 0)
+ return -1;
+
+ return (vlong)tv.tv_sec*1000*1000*1000 + tv.tv_usec*1000;
+}
+
+long
+p9time(long *tt)
+{
+ long t;
+ t = time(0);
+ if(tt)
+ *tt = t;
+ return t;
+}
+
