Module: sip-router Branch: pd/puafix Commit: a92001d430b897e79139580d21995ec7e5d7b417 URL: http://git.sip-router.org/cgi-bin/gitweb.cgi/sip-router/?a=commit;h=a92001d4...

Author: Andrei Pelinescu-Onciul andrei@iptel.org Committer: Andrei Pelinescu-Onciul andrei@iptel.org Date: Thu Aug 11 16:58:12 2011 +0200

tm: keep internal retr. intervals in ms

When using ticks to keep the retransmission intervals, any rounding error (when converting from ms to ticks) is increased with each doubling of the retransmission interval. In the standard configuration this means that the last retransmission before t2 kicks in, has an error up to 4 times bigger then the initial one (the rounding error is max. 1 tick/62.5ms for the initial interval => up to 250 ms for the last retransmission before t2).

By keeping the retransmission intervals in ms instead of ticks, this problem is avoided, and the timing error is always < 1 tick (62.5 ms) + system timer error (< 10 ms usually).

---

modules/tm/config.c | 8 ++-- modules/tm/config.h | 4 +- modules/tm/h_table.h | 9 ++--- modules/tm/t_funcs.h | 10 +++-- modules/tm/t_lookup.c | 55 +++++++++++++++++--------------- modules/tm/timer.c | 85 ++++++++++++++++++++++++++++--------------------- modules/tm/timer.h | 60 ++++++++++++++++++---------------- modules/tm/tm.c | 4 +- modules/tm/uac.c | 4 +- 9 files changed, 130 insertions(+), 109 deletions(-)

Diff: http://git.sip-router.org/cgi-bin/gitweb.cgi/sip-router/?a=commitdiff;h=a920...