diff options
author | Othmar Gsenger <otti@anytun.org> | 2008-04-12 11:38:42 +0000 |
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committer | Othmar Gsenger <otti@anytun.org> | 2008-04-12 11:38:42 +0000 |
commit | fffd213c8cba2135afda493d797c41c10354770e (patch) | |
tree | bb5eea1b12871d8c3fed0e687d83be3e504d11b2 /src/openvpn/shaper.c | |
parent | svn cleanup (diff) |
big svn cleanup
Diffstat (limited to 'src/openvpn/shaper.c')
-rw-r--r-- | src/openvpn/shaper.c | 100 |
1 files changed, 100 insertions, 0 deletions
diff --git a/src/openvpn/shaper.c b/src/openvpn/shaper.c new file mode 100644 index 0000000..f3b06cb --- /dev/null +++ b/src/openvpn/shaper.c @@ -0,0 +1,100 @@ +/* + * OpenVPN -- An application to securely tunnel IP networks + * over a single UDP port, with support for SSL/TLS-based + * session authentication and key exchange, + * packet encryption, packet authentication, and + * packet compression. + * + * Copyright (C) 2002-2005 OpenVPN Solutions LLC <info@openvpn.net> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 + * as published by the Free Software Foundation. + * + * 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 (see the file COPYING included with this + * distribution); if not, write to the Free Software Foundation, Inc., + * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +#ifdef WIN32 +#include "config-win32.h" +#else +#include "config.h" +#endif +#include "syshead.h" +#include "shaper.h" +#include "memdbg.h" + +#ifdef HAVE_GETTIMEOFDAY + +/* + * We want to wake up in delay microseconds. If timeval is larger + * than delay, set timeval to delay. + */ +bool +shaper_soonest_event (struct timeval *tv, int delay) +{ + bool ret = false; + if (delay < 1000000) + { + if (tv->tv_sec) + { + tv->tv_sec = 0; + tv->tv_usec = delay; + ret = true; + } + else if (delay < tv->tv_usec) + { + tv->tv_usec = delay; + ret = true; + } + } + else + { + const int sec = delay / 1000000; + const int usec = delay % 1000000; + + if (sec < tv->tv_sec) + { + tv->tv_sec = sec; + tv->tv_usec = usec; + ret = true; + } + else if (sec == tv->tv_sec) + { + if (usec < tv->tv_usec) + { + tv->tv_usec = usec; + ret = true; + } + } + } +#ifdef SHAPER_DEBUG + dmsg (D_SHAPER_DEBUG, "SHAPER shaper_soonest_event sec=%d usec=%d ret=%d", + (int)tv->tv_sec, (int)tv->tv_usec, (int)ret); +#endif + return ret; +} + +void +shaper_reset_wakeup (struct shaper *s) +{ + CLEAR (s->wakeup); +} + +void +shaper_msg (struct shaper *s) +{ + msg (M_INFO, "Output Traffic Shaping initialized at %d bytes per second", + s->bytes_per_second); +} + +#else +static void dummy(void) {} +#endif /* HAVE_GETTIMEOFDAY */ |