X-Git-Url: https://git.distorted.org.uk/~mdw/disorder/blobdiff_plain/81cd18944f4b070511dd041902dc2c723a2669c4..3c03f5572c03f41c268ec045bbd4a4d39afb80b1:/lib/timeval.h

diff --git a/lib/timeval.h b/lib/timeval.h
index 16c08e9..10b02ea 100644
--- a/lib/timeval.h
+++ b/lib/timeval.h
@@ -1,6 +1,6 @@
 /*
  * This file is part of DisOrder.
- * Copyright (C) 2007 Richard Kettlewell
+ * Copyright (C) 2007, 2008 Richard Kettlewell
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -21,6 +21,8 @@
 #ifndef TIMEVAL_H
 #define TIMEVAL_H
 
+#include <time.h>
+
 static inline struct timeval tvsub(const struct timeval a,
                                    const struct timeval b) {
   struct timeval r;
@@ -65,6 +67,37 @@ static inline int64_t tvsub_us(const struct timeval a,
           - ((uint64_t)b.tv_sec * 1000000 + b.tv_usec));
 }
 
+/** @brief Great-than comparison for timevals */
+static inline int tvgt(const struct timeval *a, const struct timeval *b) {
+  if(a->tv_sec > b->tv_sec)
+    return 1;
+  if(a->tv_sec == b->tv_sec
+     && a->tv_usec > b->tv_usec)
+    return 1;
+  return 0;
+}
+
+/** @brief Less-than
+    comparison for timevals */
+static inline int tvlt(const struct timeval *a, const struct timeval *b) {
+  if(a->tv_sec < b->tv_sec)
+    return 1;
+  if(a->tv_sec == b->tv_sec
+     && a->tv_usec < b->tv_usec)
+    return 1;
+  return 0;
+}
+
+/** @brief Greater-than-or-equal comparison for timevals */
+static inline int tvge(const struct timeval *a, const struct timeval *b) {
+  return !tvlt(a, b);
+}
+
+/** @brief Less-than-or-equal comparison for timevals */
+static inline int tvle(const struct timeval *a, const struct timeval *b) {
+  return !tvgt(a, b);
+}
+
 #endif /* TIMEVAL_H */
 
 /*