From 300ecfe103d1d305e78a15196d2fa1aecfddc729 Mon Sep 17 00:00:00 2001
From: gdisirio <gdisirio@35acf78f-673a-0410-8e92-d51de3d6d3f4>
Date: Thu, 26 Jun 2008 10:54:55 +0000
Subject: git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@323
 35acf78f-673a-0410-8e92-d51de3d6d3f4

---
 src/chsleep.c       | 14 ++++++++++++++
 src/include/sleep.h |  3 +++
 2 files changed, 17 insertions(+)

(limited to 'src')

diff --git a/src/chsleep.c b/src/chsleep.c
index 859333b79..7f9f161f1 100644
--- a/src/chsleep.c
+++ b/src/chsleep.c
@@ -39,4 +39,18 @@ void chThdSleep(systime_t time) {
 }
 #endif /* CH_USE_SLEEP */
 
+#ifdef CH_USE_SYSTEMTIME
+/**
+ * Checks if the current system time is within the specified time window.
+ * @param start the start of the time window (inclusive)
+ * @param end the end of the time window (non inclusive)
+ */
+bool_t chSysInTimeWindow(systime_t start, systime_t end) {
+
+  systime_t time = chSysGetTime();
+  return end >= start ? (time >= start) && (time < end) :
+                        (time >= start) || (time < end);
+}
+#endif /* CH_USE_SYSTEMTIME */
+
 /** @} */
diff --git a/src/include/sleep.h b/src/include/sleep.h
index 51c4ac5d0..c718bb4ba 100644
--- a/src/include/sleep.h
+++ b/src/include/sleep.h
@@ -31,6 +31,9 @@ extern "C" {
 #ifdef CH_USE_SLEEP
   void chThdSleep(systime_t time);
 #endif /* CH_USE_SLEEP */
+#ifdef CH_USE_SYSTEMTIME
+bool_t chSysInTimeWindow(systime_t start, systime_t end);
+#endif /* CH_USE_SYSTEMTIME */
 #ifdef __cplusplus
 }
 #endif
-- 
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