1 files changed, 36 insertions, 0 deletions
diff --git a/distcc/src/timeval.c b/distcc/src/timeval.c
new file mode 100644
index 0000000..5106b98
--- /dev/null
+++ b/distcc/src/timeval.c
@@ -0,0 +1,36 @@
+/* from the GNU libc manual */
+
+#include <sys/time.h>
+#include <time.h>
+
+#include "timeval.h"
+
+/* Subtract the `struct timeval' values X and Y,
+   storing the result in RESULT.
+   Return 1 if the difference is negative, otherwise 0.  */
+     
+int
+timeval_subtract(struct timeval *result,
+		 struct timeval *x,
+		 struct timeval *y)
+{
+  /* Perform the carry for the later subtraction by updating Y. */
+  if (x->tv_usec < y->tv_usec) {
+    int nsec = (y->tv_usec - x->tv_usec) / 1000000 + 1;
+    y->tv_usec -= 1000000 * nsec;
+    y->tv_sec += nsec;
+  }
+  if (x->tv_usec - y->tv_usec > 1000000) {
+    int nsec = (x->tv_usec - y->tv_usec) / 1000000;
+    y->tv_usec += 1000000 * nsec;
+    y->tv_sec -= nsec;
+  }
+     
+  /* Compute the time remaining to wait.
+     `tv_usec' is certainly positive. */
+  result->tv_sec = x->tv_sec - y->tv_sec;
+  result->tv_usec = x->tv_usec - y->tv_usec;
+     
+  /* Return 1 if result is negative. */
+  return x->tv_sec < y->tv_sec;
+}