From d2322b6309bf15a45002b42e7e6ba3d6b5bfa932 Mon Sep 17 00:00:00 2001
From: "Kok, Auke" <auke-jan.h.kok@intel.com>
Date: Wed, 27 Jan 2010 11:34:45 -0800
Subject: [PATCH] xserver: Add timestamps to logfile output.

Add timestamps in seconds derived from clock_monotonic to the log
file.

Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com>
Reviewed-by: Keith Packard <keithp@keithp.com>
Signed-off-by: Keith Packard <keithp@keithp.com>
---
 os/log.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/os/log.c b/os/log.c
index e20b6d357..03dc11ffe 100644
--- a/os/log.c
+++ b/os/log.c
@@ -258,6 +258,14 @@ LogVWrite(int verb, const char *f, va_list args)
 {
     static char tmpBuffer[1024];
     int len = 0;
+    static Bool newline = TRUE;
+
+    if (newline) {
+	sprintf(tmpBuffer, "[%10.3f] ", GetTimeInMillis() / 1000.0);
+	len = strlen(tmpBuffer);
+	if (logFile)
+	    fwrite(tmpBuffer, len, 1, logFile);
+    }
 
     /*
      * Since a va_list can only be processed once, write the string to a
@@ -268,6 +276,7 @@ LogVWrite(int verb, const char *f, va_list args)
 	vsnprintf(tmpBuffer, sizeof(tmpBuffer), f, args);
 	len = strlen(tmpBuffer);
     }
+    newline = (tmpBuffer[len-1] == '\n');
     if ((verb < 0 || logVerbosity >= verb) && len > 0)
 	fwrite(tmpBuffer, len, 1, stderr);
     if ((verb < 0 || logFileVerbosity >= verb) && len > 0) {