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| author | Valentin Bartenev <vbart@nginx.com> | 2013-07-12 14:51:07 +0400 |
|---|---|---|
| committer | Valentin Bartenev <vbart@nginx.com> | 2013-07-12 14:51:07 +0400 |
| commit | 182a05b9d5b4321be89aa25ade89e41d00f0b4f7 (patch) | |
| tree | 6732cf547663b6f5d0ac6154a27876fc3771ca91 /src | |
| parent | 0f0502064dda4e702b4f379ee2af4bbddcb93214 (diff) | |
| download | nginx-182a05b9d5b4321be89aa25ade89e41d00f0b4f7.tar.gz nginx-182a05b9d5b4321be89aa25ade89e41d00f0b4f7.tar.bz2 | |
Events: support for EPOLLRDHUP (ticket #320).
Since Linux 2.6.17, epoll is able to report about peer half-closed connection
using special EPOLLRDHUP flag on a read event.
Diffstat (limited to 'src')
| -rw-r--r-- | src/event/modules/ngx_epoll_module.c | 18 | ||||
| -rw-r--r-- | src/event/ngx_event.h | 9 |
2 files changed, 20 insertions, 7 deletions
diff --git a/src/event/modules/ngx_epoll_module.c b/src/event/modules/ngx_epoll_module.c index ee77d8e4a..f5f663179 100644 --- a/src/event/modules/ngx_epoll_module.c +++ b/src/event/modules/ngx_epoll_module.c @@ -25,6 +25,8 @@ #define EPOLLERR 0x008 #define EPOLLHUP 0x010 +#define EPOLLRDHUP 0x2000 + #define EPOLLET 0x80000000 #define EPOLLONESHOT 0x40000000 @@ -396,13 +398,13 @@ ngx_epoll_add_event(ngx_event_t *ev, ngx_int_t event, ngx_uint_t flags) if (event == NGX_READ_EVENT) { e = c->write; prev = EPOLLOUT; -#if (NGX_READ_EVENT != EPOLLIN) - events = EPOLLIN; +#if (NGX_READ_EVENT != EPOLLIN|EPOLLRDHUP) + events = EPOLLIN|EPOLLRDHUP; #endif } else { e = c->read; - prev = EPOLLIN; + prev = EPOLLIN|EPOLLRDHUP; #if (NGX_WRITE_EVENT != EPOLLOUT) events = EPOLLOUT; #endif @@ -466,7 +468,7 @@ ngx_epoll_del_event(ngx_event_t *ev, ngx_int_t event, ngx_uint_t flags) } else { e = c->read; - prev = EPOLLIN; + prev = EPOLLIN|EPOLLRDHUP; } if (e->active) { @@ -501,7 +503,7 @@ ngx_epoll_add_connection(ngx_connection_t *c) { struct epoll_event ee; - ee.events = EPOLLIN|EPOLLOUT|EPOLLET; + ee.events = EPOLLIN|EPOLLOUT|EPOLLET|EPOLLRDHUP; ee.data.ptr = (void *) ((uintptr_t) c | c->read->instance); ngx_log_debug2(NGX_LOG_DEBUG_EVENT, c->log, 0, @@ -666,6 +668,12 @@ ngx_epoll_process_events(ngx_cycle_t *cycle, ngx_msec_t timer, ngx_uint_t flags) if ((revents & EPOLLIN) && rev->active) { +#if (NGX_HAVE_EPOLLRDHUP) + if (revents & EPOLLRDHUP) { + rev->pending_eof = 1; + } +#endif + if ((flags & NGX_POST_THREAD_EVENTS) && !rev->accept) { rev->posted_ready = 1; diff --git a/src/event/ngx_event.h b/src/event/ngx_event.h index 122b538a7..530c9486c 100644 --- a/src/event/ngx_event.h +++ b/src/event/ngx_event.h @@ -71,7 +71,7 @@ struct ngx_event_s { unsigned deferred_accept:1; - /* the pending eof reported by kqueue or in aio chain operation */ + /* the pending eof reported by kqueue, epoll or in aio chain operation */ unsigned pending_eof:1; #if !(NGX_THREADS) @@ -349,6 +349,11 @@ extern ngx_event_actions_t ngx_event_actions; #define NGX_VNODE_EVENT 0 +#if (NGX_HAVE_EPOLL) && !(NGX_HAVE_EPOLLRDHUP) +#define EPOLLRDHUP 0 +#endif + + #if (NGX_HAVE_KQUEUE) #define NGX_READ_EVENT EVFILT_READ @@ -392,7 +397,7 @@ extern ngx_event_actions_t ngx_event_actions; #elif (NGX_HAVE_EPOLL) -#define NGX_READ_EVENT EPOLLIN +#define NGX_READ_EVENT (EPOLLIN|EPOLLRDHUP) #define NGX_WRITE_EVENT EPOLLOUT #define NGX_LEVEL_EVENT 0 |