commit d3653063d30ee8174f6ec330124553c6717fbe9c Author: Nick Mathewson nickm@torproject.org Date: Thu Aug 18 15:08:49 2011 -0400

Automatically use filtering bufferevents with IOCP. --- changes/bug3752 | 5 +++++ src/common/compat_libevent.c | 11 +++++++++++ src/common/compat_libevent.h | 1 + src/common/tortls.c | 2 +- 4 files changed, 18 insertions(+), 1 deletions(-)

diff --git a/changes/bug3752 b/changes/bug3752 new file mode 100644 index 0000000..270f155 --- /dev/null +++ b/changes/bug3752 @@ -0,0 +1,5 @@ + o Major bugfixes: + - The IOCP backend now works even when the user has not specified + the (internal, debbuging-only) _UseFilteringSSLBufferevents option. + Fixes part of bug 3752; bugfix on 0.2.3.1-alpha. + diff --git a/src/common/compat_libevent.c b/src/common/compat_libevent.c index 8752de7..595742f 100644 --- a/src/common/compat_libevent.c +++ b/src/common/compat_libevent.c @@ -164,6 +164,16 @@ struct event_base *the_event_base = NULL; #endif #endif

+#ifdef USE_BUFFEREVENTS +static int using_iocp_bufferevents = 0; + +int +tor_libevent_using_iocp_bufferevents(void) +{ + return using_iocp_bufferevents; +} +#endif + /** Initialize the Libevent library and set up the event base. */ void tor_libevent_initialize(tor_libevent_cfg *torcfg) @@ -187,6 +197,7 @@ tor_libevent_initialize(tor_libevent_cfg *torcfg) if (! torcfg->disable_iocp) { evthread_use_windows_threads(); event_config_set_flag(cfg, EVENT_BASE_FLAG_STARTUP_IOCP); + using_iocp_bufferevents = 1; } #endif

diff --git a/src/common/compat_libevent.h b/src/common/compat_libevent.h index 8669fd4..bbe105b 100644 --- a/src/common/compat_libevent.h +++ b/src/common/compat_libevent.h @@ -73,6 +73,7 @@ const char *tor_libevent_get_version_str(void); #ifdef USE_BUFFEREVENTS #define TOR_LIBEVENT_TICKS_PER_SECOND 3 const struct timeval *tor_libevent_get_one_tick_timeout(void); +int tor_libevent_using_iocp_bufferevents(void); #endif

#endif diff --git a/src/common/tortls.c b/src/common/tortls.c index 4556030..2aaa2c4 100644 --- a/src/common/tortls.c +++ b/src/common/tortls.c @@ -1892,7 +1892,7 @@ tor_tls_init_bufferevent(tor_tls_t *tls, struct bufferevent *bufev_in, const enum bufferevent_ssl_state state = receiving ? BUFFEREVENT_SSL_ACCEPTING : BUFFEREVENT_SSL_CONNECTING;

- if (filter) { + if (filter || tor_libevent_using_iocp_bufferevents()) { /* Grab an extra reference to the SSL, since BEV_OPT_CLOSE_ON_FREE means that the SSL will get freed too.