From 6a5e90f2d91892248f5f7defe1c610e00298d789 Mon Sep 17 00:00:00 2001
From: Gerald Combs <gerald@wireshark.org>
Date: Sat, 16 Dec 2017 14:15:28 -0800
Subject: Log output updates.

Add a Qt message handler that calls g_log. Add milliseconds to the
g_log_message_handler timestamp.

Change-Id: I5b1c1d902b6b05cd8daa01741b19d6c2048dfb9a
Reviewed-on: https://code.wireshark.org/review/24865
Reviewed-by: Gerald Combs <gerald@wireshark.org>
Petri-Dish: Gerald Combs <gerald@wireshark.org>
Tested-by: Petri Dish Buildbot
Reviewed-by: Michael Mann <mmann78@netscape.net>
---
 wsutil/time_util.c | 52 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 wsutil/time_util.h |  6 ++++++
 2 files changed, 58 insertions(+)

(limited to 'wsutil')

diff --git a/wsutil/time_util.c b/wsutil/time_util.c
index b35061478f..03aa37dc76 100644
--- a/wsutil/time_util.c
+++ b/wsutil/time_util.c
@@ -113,6 +113,58 @@ void log_resource_usage(gboolean reset_delta, const char *format, ...) {
 
 }
 
+/* Copied from pcapio.c pcapng_write_interface_statistics_block()*/
+guint64
+create_timestamp(void) {
+    guint64  timestamp;
+#ifdef _WIN32
+    FILETIME now;
+#else
+    struct timeval now;
+#endif
+
+#ifdef _WIN32
+    /*
+     * Current time, represented as 100-nanosecond intervals since
+     * January 1, 1601, 00:00:00 UTC.
+     *
+     * I think DWORD might be signed, so cast both parts of "now"
+     * to guint32 so that the sign bit doesn't get treated specially.
+     *
+     * Windows 8 provides GetSystemTimePreciseAsFileTime which we
+     * might want to use instead.
+     */
+    GetSystemTimeAsFileTime(&now);
+    timestamp = (((guint64)(guint32)now.dwHighDateTime) << 32) +
+                (guint32)now.dwLowDateTime;
+
+    /*
+     * Convert to same thing but as 1-microsecond, i.e. 1000-nanosecond,
+     * intervals.
+     */
+    timestamp /= 10;
+
+    /*
+     * Subtract difference, in microseconds, between January 1, 1601
+     * 00:00:00 UTC and January 1, 1970, 00:00:00 UTC.
+     */
+    timestamp -= G_GUINT64_CONSTANT(11644473600000000);
+#else
+    /*
+     * Current time, represented as seconds and microseconds since
+     * January 1, 1970, 00:00:00 UTC.
+     */
+    gettimeofday(&now, NULL);
+
+    /*
+     * Convert to delta in microseconds.
+     */
+    timestamp = (guint64)(now.tv_sec) * 1000000 +
+                (guint64)(now.tv_usec);
+#endif
+    return timestamp;
+}
+
 /*
  * Editor modelines  -  http://www.wireshark.org/tools/modelines.html
  *
diff --git a/wsutil/time_util.h b/wsutil/time_util.h
index 51a3aa64c3..1775bb62a3 100644
--- a/wsutil/time_util.h
+++ b/wsutil/time_util.h
@@ -45,6 +45,12 @@ void get_resource_usage(double *user_time, double *sys_time);
 WS_DLL_PUBLIC
 void log_resource_usage(gboolean reset_delta, const char *format, ...);
 
+/**
+ * Fetch the number of microseconds since midnight (0 hour), January 1, 1970.
+ */
+WS_DLL_PUBLIC
+guint64 create_timestamp(void);
+
 #ifdef __cplusplus
 }
 #endif /* __cplusplus */
-- 
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