1 files changed, 147 insertions, 0 deletions
diff --git a/src/time.c b/src/time.c
new file mode 100644
index 0000000..280b522
--- /dev/null
+++ b/src/time.c
@@ -0,0 +1,147 @@
+/*
+ * Time calculation functions.
+ *
+ * Copyright 2000-2011 Willy Tarreau <w@1wt.eu>
+ *
+ * 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 the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ *
+ */
+
+#include <sys/time.h>
+
+#include <haproxy/api.h>
+#include <haproxy/time.h>
+
+
+/*
+ * adds <ms> ms to <from>, set the result to <tv> and returns a pointer <tv>
+ */
+struct timeval *_tv_ms_add(struct timeval *tv, const struct timeval *from, int ms)
+{
+	tv->tv_usec = from->tv_usec + (ms % 1000) * 1000;
+	tv->tv_sec  = from->tv_sec  + (ms / 1000);
+	while (tv->tv_usec >= 1000000) {
+		tv->tv_usec -= 1000000;
+		tv->tv_sec++;
+	}
+	return tv;
+}
+
+/*
+ * compares <tv1> and <tv2> modulo 1ms: returns 0 if equal, -1 if tv1 < tv2, 1 if tv1 > tv2
+ * Must not be used when either argument is eternity. Use tv_ms_cmp2() for that.
+ */
+int _tv_ms_cmp(const struct timeval *tv1, const struct timeval *tv2)
+{
+	return __tv_ms_cmp(tv1, tv2);
+}
+
+/*
+ * compares <tv1> and <tv2> modulo 1 ms: returns 0 if equal, -1 if tv1 < tv2, 1 if tv1 > tv2,
+ * assuming that TV_ETERNITY is greater than everything.
+ */
+int _tv_ms_cmp2(const struct timeval *tv1, const struct timeval *tv2)
+{
+	return __tv_ms_cmp2(tv1, tv2);
+}
+
+/*
+ * compares <tv1> and <tv2> modulo 1 ms: returns 1 if tv1 <= tv2, 0 if tv1 > tv2,
+ * assuming that TV_ETERNITY is greater than everything. Returns 0 if tv1 is
+ * TV_ETERNITY, and always assumes that tv2 != TV_ETERNITY. Designed to replace
+ * occurrences of (tv_ms_cmp2(tv,now) <= 0).
+ */
+int _tv_ms_le2(const struct timeval *tv1, const struct timeval *tv2)
+{
+	return __tv_ms_le2(tv1, tv2);
+}
+
+/*
+ * returns the remaining time between tv1=now and event=tv2
+ * if tv2 is passed, 0 is returned.
+ * Must not be used when either argument is eternity.
+ */
+unsigned long _tv_ms_remain(const struct timeval *tv1, const struct timeval *tv2)
+{
+	return __tv_ms_remain(tv1, tv2);
+}
+
+/*
+ * returns the remaining time between tv1=now and event=tv2
+ * if tv2 is passed, 0 is returned.
+ * Returns TIME_ETERNITY if tv2 is eternity.
+ */
+unsigned long _tv_ms_remain2(const struct timeval *tv1, const struct timeval *tv2)
+{
+	if (tv_iseternity(tv2))
+		return TIME_ETERNITY;
+
+	return __tv_ms_remain(tv1, tv2);
+}
+
+/*
+ * Returns the time in ms elapsed between tv1 and tv2, assuming that tv1<=tv2.
+ * Must not be used when either argument is eternity.
+ */
+unsigned long _tv_ms_elapsed(const struct timeval *tv1, const struct timeval *tv2)
+{
+	return __tv_ms_elapsed(tv1, tv2);
+}
+
+/*
+ * adds <inc> to <from>, set the result to <tv> and returns a pointer <tv>
+ */
+struct timeval *_tv_add(struct timeval *tv, const struct timeval *from, const struct timeval *inc)
+{
+	return __tv_add(tv, from, inc);
+}
+
+/*
+ * If <inc> is set, then add it to <from> and set the result to <tv>, then
+ * return 1, otherwise return 0. It is meant to be used in if conditions.
+ */
+int _tv_add_ifset(struct timeval *tv, const struct timeval *from, const struct timeval *inc)
+{
+	return __tv_add_ifset(tv, from, inc);
+}
+
+/*
+ * Computes the remaining time between tv1=now and event=tv2. if tv2 is passed,
+ * 0 is returned. The result is stored into tv.
+ */
+struct timeval *_tv_remain(const struct timeval *tv1, const struct timeval *tv2, struct timeval *tv)
+{
+	return __tv_remain(tv1, tv2, tv);
+}
+
+/*
+ * Computes the remaining time between tv1=now and event=tv2. if tv2 is passed,
+ * 0 is returned. The result is stored into tv. Returns ETERNITY if tv2 is
+ * eternity.
+ */
+struct timeval *_tv_remain2(const struct timeval *tv1, const struct timeval *tv2, struct timeval *tv)
+{
+	return __tv_remain2(tv1, tv2, tv);
+}
+
+/* tv_isle: compares <tv1> and <tv2> : returns 1 if tv1 <= tv2, otherwise 0 */
+int _tv_isle(const struct timeval *tv1, const struct timeval *tv2)
+{
+	return __tv_isle(tv1, tv2);
+}
+
+/* tv_isgt: compares <tv1> and <tv2> : returns 1 if tv1 > tv2, otherwise 0 */
+int _tv_isgt(const struct timeval *tv1, const struct timeval *tv2)
+{
+	return __tv_isgt(tv1, tv2);
+}
+
+/*
+ * Local variables:
+ *  c-indent-level: 8
+ *  c-basic-offset: 8
+ * End:
+ */