From e5c9e401a4496ee8015cd6e27fdf806739f7ceed Mon Sep 17 00:00:00 2001 From: Johannes Berg Date: Mon, 25 Nov 2013 21:56:05 +0100 Subject: [PATCH] OS utils: Add os_reltime_expired() This helper functions checks whether a given entry has expired, given the last active timestamp, the current time, and a timeout. Signed-off-by: Johannes Berg --- src/utils/os.h | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/src/utils/os.h b/src/utils/os.h index 6689d447d..f93329224 100644 --- a/src/utils/os.h +++ b/src/utils/os.h @@ -96,6 +96,18 @@ static inline void os_reltime_age(struct os_reltime *start, } +static inline int os_reltime_expired(struct os_reltime *now, + struct os_reltime *ts, + os_time_t timeout_secs) +{ + struct os_reltime age; + + os_reltime_sub(now, ts, &age); + return (age.sec > timeout_secs) || + (age.sec == timeout_secs && age.usec > 0); +} + + /** * os_mktime - Convert broken-down time into seconds since 1970-01-01 * @year: Four digit year