[Xen-devel] [PATCH 2/7] add current_time function to time manager

[Pawel Wieczorkiewicz <wipawel@xxxxxxxxx>]

From: Paul Semel <phentex@xxxxxxxxx>

this function returns the "epoch" time

Signed-off-by: Paul Semel <phentex@xxxxxxxxx>

cr https://code.amazon.com/reviews/CR-786224
---
 common/time.c      | 16 ++++++++++++++++
 include/xtf/time.h |  4 ++++
 2 files changed, 20 insertions(+)

diff --git a/common/time.c b/common/time.c
index 11ac168..37a9faf 100644
--- a/common/time.c
+++ b/common/time.c
@@ -76,6 +76,22 @@ uint64_t since_boot_time(void)
     return system_time;
 }
 
+/* This function return the epoch time (number of seconds elapsed
+ * since Juanary 1, 1970) */
+#if defined(__i386__)
+uint32_t current_time(void)
+#else
+uint64_t current_time(void)
+#endif
+{
+#if defined(__i386__)
+    uint32_t seconds = shared_info.wc_sec;
+#else
+    uint64_t seconds = ((uint64_t)shared_info.wc_sec_hi << 32) | 
shared_info.wc_sec;
+#endif
+    return seconds + (since_boot_time() / 1000000000);
+}
+
 /*
  * Local variables:
  * mode: C
diff --git a/include/xtf/time.h b/include/xtf/time.h
index 15cbd48..a8c10eb 100644
--- a/include/xtf/time.h
+++ b/include/xtf/time.h
@@ -18,8 +18,12 @@
 #if defined(__i386__)
 /* Time from boot in nanoseconds */
 uint32_t since_boot_time(void);
+
+uint32_t current_time(void);
 #else
 uint64_t since_boot_time(void);
+
+uint64_t current_time(void);
 #endif
 
 #endif /* XTF_TIME_H */
-- 
2.16.2

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