util-vserver-0.30.208

[util-vserver.git] / ensc_fmt / fmt-tai64n.c

diff --git a/ensc_fmt/fmt-tai64n.c b/ensc_fmt/fmt-tai64n.c
new file mode 100644 (file)
index 0000000..6aad24a
--- /dev/null
+++ b/ensc_fmt/fmt-tai64n.c
@@ -0,0 +1,51 @@
+// $Id: fmt-tai64n.c,v 1.1 2004/06/16 10:06:03 ensc Exp $    --*- c -*--
+
+// Copyright (C) 2004 Enrico Scholz <enrico.scholz@informatik.tu-chemnitz.de>
+//  
+// This program is free software; you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation; version 2 of the License.
+//  
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//  
+// You should have received a copy of the GNU General Public License
+// along with this program; if not, write to the Free Software
+// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+
+
+#ifdef HAVE_CONFIG_H
+#  include <config.h>
+#endif
+
+#include "fmt.h"
+#include "fmt-internal.h"
+
+#include <sys/time.h>
+#include <string.h>
+#include <assert.h>
+
+size_t
+FMT_P(tai64n)(char *buf, struct timeval const *now)
+{
+  uint64_t             tai_secs = 1ll << 62;
+  char *               ptr = buf;
+  size_t               l;
+  
+  tai_secs += now->tv_sec;
+  *ptr++ = '@';
+
+  l = FMT_P(xuint64)(ptr, tai_secs);   // always 16 bytes
+  assert(l==16);
+  ptr +=  16;
+
+  memset(ptr, '0', 8);
+  l = FMT_P(xuint32)(0,   now->tv_usec*1000);
+  FMT_P(xuint32)(ptr+8-l, now->tv_usec*1000);
+
+  ptr +=  8;
+
+  return ptr-buf;
+}