slackbuilds_ponce/network/thttpd/patches/thttpd-2.25b-monolithic-timer.patch

diff -Nru thttpd-2.25b.orig/configure.in thttpd-2.25b/configure.in
--- thttpd-2.25b.orig/configure.in	2003-12-25 20:41:13.000000000 +0200
+++ thttpd-2.25b/configure.in	2010-07-08 00:04:25.000000000 +0300
@@ -123,6 +123,8 @@
 	;;
 esac
 
+AC_CHECK_LIB(rt, clock_gettime)
+
 AC_ACME_TM_GMTOFF
 AC_ACME_INT64T
 AC_ACME_SOCKLENT
diff -Nru thttpd-2.25b.orig/thttpd.c thttpd-2.25b/thttpd.c
--- thttpd-2.25b.orig/thttpd.c	2003-12-25 21:06:52.000000000 +0200
+++ thttpd-2.25b/thttpd.c	2010-07-08 00:41:28.000000000 +0300
@@ -742,7 +742,7 @@
 	}
 
     /* Main loop. */
-    (void) gettimeofday( &tv, (struct timezone*) 0 );
+    tmr_prepare_timeval( &tv );
     while ( ( ! terminate ) || num_connects > 0 )
 	{
 	/* Do we need to re-open the log file? */
@@ -761,7 +761,7 @@
 	    syslog( LOG_ERR, "fdwatch - %m" );
 	    exit( 1 );
 	    }
-	(void) gettimeofday( &tv, (struct timezone*) 0 );
+	tmr_prepare_timeval( &tv );
 
 	if ( num_ready == 0 )
 	    {
diff -Nru thttpd-2.25b.orig/timers.c thttpd-2.25b/timers.c
--- thttpd-2.25b.orig/timers.c	2002-08-22 04:04:12.000000000 +0300
+++ thttpd-2.25b/timers.c	2010-07-08 11:47:03.000000000 +0300
@@ -41,7 +41,13 @@
 
 ClientData JunkClientData;
 
-
+#undef HAVE_LIBRT_MONO
+#if defined(HAVE_LIBRT) && defined(CLOCK_MONOTONIC)
+#define HAVE_LIBRT_MONO
+#include <time.h>
+static int use_monotonic = 0;		/* monotonic clock runtime availability flag */
+static struct timeval tv_diff;		/* system time - monotonic difference at start */
+#endif
 
 static unsigned int
 hash( Timer* t )
@@ -145,6 +151,26 @@
 	timers[h] = (Timer*) 0;
     free_timers = (Timer*) 0;
     alloc_count = active_count = free_count = 0;
+
+    /* Check for monotonic clock availability */
+#ifdef HAVE_LIBRT_MONO
+    struct timespec ts;
+    struct timeval tv_start, tv;
+    
+    /* Try to get monotonic clock time */
+    if (clock_gettime(CLOCK_MONOTONIC, &ts) == 0) {
+	use_monotonic = 1;
+
+	/* Get current system time */
+	(void) gettimeofday( &tv_start , (struct timezone*) 0 );
+	tv.tv_sec = ts.tv_sec;
+	tv.tv_usec = ts.tv_nsec / 1000L;
+	/* Calculate and save the difference: tv_start is since the Epoch, so tv_start > ts
+	    tv_diff = tv_start - tv	*/
+	timersub( &tv_start, &tv, &tv_diff );
+    }
+#endif
+
     }
 
 
@@ -176,7 +202,7 @@
     if ( nowP != (struct timeval*) 0 )
 	t->time = *nowP;
     else
-	(void) gettimeofday( &t->time, (struct timezone*) 0 );
+	tmr_prepare_timeval( &t->time );
     t->time.tv_sec += msecs / 1000L;
     t->time.tv_usec += ( msecs % 1000L ) * 1000L;
     if ( t->time.tv_usec >= 1000000L )
@@ -349,3 +375,27 @@
     if ( active_count + free_count != alloc_count )
 	syslog( LOG_ERR, "timer counts don't add up!" );
     }
+
+/* Fill timeval structure for further usage by the package. */
+void
+tmr_prepare_timeval( struct timeval *tv )
+{
+#ifdef HAVE_LIBRT_MONO
+    struct timespec ts;
+    struct timeval tv0;
+
+    if (use_monotonic) {	/* use monotonic clock source ? */
+	if (clock_gettime(CLOCK_MONOTONIC,&ts) < 0) {
+	    perror("clock_gettime"); return;
+	}
+	tv0.tv_sec = ts.tv_sec;
+	tv0.tv_usec = ts.tv_nsec / 1000L;
+	/* Return system time value like it was running accurately */
+	timeradd( &tv_diff, &tv0, tv );
+    } else {
+#endif
+	(void) gettimeofday( tv , (struct timezone*) 0 );
+#ifdef HAVE_LIBRT_MONO
+    }
+#endif
+}
diff -Nru thttpd-2.25b.orig/timers.h thttpd-2.25b/timers.h
--- thttpd-2.25b.orig/timers.h	2001-04-13 08:37:41.000000000 +0300
+++ thttpd-2.25b/timers.h	2010-07-08 00:09:15.000000000 +0300
@@ -106,4 +106,7 @@
 /* Generate debugging statistics syslog message. */
 extern void tmr_logstats( long secs );
 
+/* Fill timeval structure for further usage by the package. */
+extern void tmr_prepare_timeval( struct timeval *tv );
+
 #endif /* _TIMERS_H_ */