diff options
Diffstat (limited to 'app/nginx/src/event/ngx_event.h')
| -rw-r--r-- | app/nginx/src/event/ngx_event.h | 541 |
1 files changed, 0 insertions, 541 deletions
diff --git a/app/nginx/src/event/ngx_event.h b/app/nginx/src/event/ngx_event.h deleted file mode 100644 index 053bd16..0000000 --- a/app/nginx/src/event/ngx_event.h +++ /dev/null @@ -1,541 +0,0 @@ - -/* - * Copyright (C) Igor Sysoev - * Copyright (C) Nginx, Inc. - */ - - -#ifndef _NGX_EVENT_H_INCLUDED_ -#define _NGX_EVENT_H_INCLUDED_ - - -#include <ngx_config.h> -#include <ngx_core.h> - - -#define NGX_INVALID_INDEX 0xd0d0d0d0 - - -#if (NGX_HAVE_IOCP) - -typedef struct { - WSAOVERLAPPED ovlp; - ngx_event_t *event; - int error; -} ngx_event_ovlp_t; - -#endif - - -struct ngx_event_s { - void *data; - - unsigned write:1; - - unsigned accept:1; - - /* used to detect the stale events in kqueue and epoll */ - unsigned instance:1; - - /* - * the event was passed or would be passed to a kernel; - * in aio mode - operation was posted. - */ - unsigned active:1; - - unsigned disabled:1; - - /* the ready event; in aio mode 0 means that no operation can be posted */ - unsigned ready:1; - - unsigned oneshot:1; - - /* aio operation is complete */ - unsigned complete:1; - - unsigned eof:1; - unsigned error:1; - - unsigned timedout:1; - unsigned timer_set:1; - - unsigned delayed:1; - - unsigned deferred_accept:1; - - /* the pending eof reported by kqueue, epoll or in aio chain operation */ - unsigned pending_eof:1; - - unsigned posted:1; - - unsigned closed:1; - - /* to test on worker exit */ - unsigned channel:1; - unsigned resolver:1; - - unsigned cancelable:1; - -#if (NGX_HAVE_KQUEUE) - unsigned kq_vnode:1; - - /* the pending errno reported by kqueue */ - int kq_errno; -#endif - - /* - * kqueue only: - * accept: number of sockets that wait to be accepted - * read: bytes to read when event is ready - * or lowat when event is set with NGX_LOWAT_EVENT flag - * write: available space in buffer when event is ready - * or lowat when event is set with NGX_LOWAT_EVENT flag - * - * epoll with EPOLLRDHUP: - * accept: 1 if accept many, 0 otherwise - * read: 1 if there can be data to read, 0 otherwise - * - * iocp: TODO - * - * otherwise: - * accept: 1 if accept many, 0 otherwise - */ - -#if (NGX_HAVE_KQUEUE) || (NGX_HAVE_IOCP) - int available; -#else - unsigned available:1; -#endif - - ngx_event_handler_pt handler; - - -#if (NGX_HAVE_IOCP) - ngx_event_ovlp_t ovlp; -#endif - - ngx_uint_t index; - - ngx_log_t *log; - - ngx_rbtree_node_t timer; - - /* the posted queue */ - ngx_queue_t queue; - -#if 0 - - /* the threads support */ - - /* - * the event thread context, we store it here - * if $(CC) does not understand __thread declaration - * and pthread_getspecific() is too costly - */ - - void *thr_ctx; - -#if (NGX_EVENT_T_PADDING) - - /* event should not cross cache line in SMP */ - - uint32_t padding[NGX_EVENT_T_PADDING]; -#endif -#endif -}; - - -#if (NGX_HAVE_FILE_AIO) - -struct ngx_event_aio_s { - void *data; - ngx_event_handler_pt handler; - ngx_file_t *file; - -#if (NGX_HAVE_AIO_SENDFILE || NGX_COMPAT) - ssize_t (*preload_handler)(ngx_buf_t *file); -#endif - - ngx_fd_t fd; - -#if (NGX_HAVE_EVENTFD) - int64_t res; -#endif - -#if !(NGX_HAVE_EVENTFD) || (NGX_TEST_BUILD_EPOLL) - ngx_err_t err; - size_t nbytes; -#endif - - ngx_aiocb_t aiocb; - ngx_event_t event; -}; - -#endif - - -typedef struct { - ngx_int_t (*add)(ngx_event_t *ev, ngx_int_t event, ngx_uint_t flags); - ngx_int_t (*del)(ngx_event_t *ev, ngx_int_t event, ngx_uint_t flags); - - ngx_int_t (*enable)(ngx_event_t *ev, ngx_int_t event, ngx_uint_t flags); - ngx_int_t (*disable)(ngx_event_t *ev, ngx_int_t event, ngx_uint_t flags); - - ngx_int_t (*add_conn)(ngx_connection_t *c); - ngx_int_t (*del_conn)(ngx_connection_t *c, ngx_uint_t flags); - - ngx_int_t (*notify)(ngx_event_handler_pt handler); - - ngx_int_t (*process_events)(ngx_cycle_t *cycle, ngx_msec_t timer, - ngx_uint_t flags); - - ngx_int_t (*init)(ngx_cycle_t *cycle, ngx_msec_t timer); - void (*done)(ngx_cycle_t *cycle); -} ngx_event_actions_t; - - -extern ngx_event_actions_t ngx_event_actions; -#if (NGX_HAVE_EPOLLRDHUP) -extern ngx_uint_t ngx_use_epoll_rdhup; -#endif - - -/* - * The event filter requires to read/write the whole data: - * select, poll, /dev/poll, kqueue, epoll. - */ -#define NGX_USE_LEVEL_EVENT 0x00000001 - -/* - * The event filter is deleted after a notification without an additional - * syscall: kqueue, epoll. - */ -#define NGX_USE_ONESHOT_EVENT 0x00000002 - -/* - * The event filter notifies only the changes and an initial level: - * kqueue, epoll. - */ -#define NGX_USE_CLEAR_EVENT 0x00000004 - -/* - * The event filter has kqueue features: the eof flag, errno, - * available data, etc. - */ -#define NGX_USE_KQUEUE_EVENT 0x00000008 - -/* - * The event filter supports low water mark: kqueue's NOTE_LOWAT. - * kqueue in FreeBSD 4.1-4.2 has no NOTE_LOWAT so we need a separate flag. - */ -#define NGX_USE_LOWAT_EVENT 0x00000010 - -/* - * The event filter requires to do i/o operation until EAGAIN: epoll. - */ -#define NGX_USE_GREEDY_EVENT 0x00000020 - -/* - * The event filter is epoll. - */ -#define NGX_USE_EPOLL_EVENT 0x00000040 - -/* - * Obsolete. - */ -#define NGX_USE_RTSIG_EVENT 0x00000080 - -/* - * Obsolete. - */ -#define NGX_USE_AIO_EVENT 0x00000100 - -/* - * Need to add socket or handle only once: i/o completion port. - */ -#define NGX_USE_IOCP_EVENT 0x00000200 - -/* - * The event filter has no opaque data and requires file descriptors table: - * poll, /dev/poll. - */ -#define NGX_USE_FD_EVENT 0x00000400 - -/* - * The event module handles periodic or absolute timer event by itself: - * kqueue in FreeBSD 4.4, NetBSD 2.0, and MacOSX 10.4, Solaris 10's event ports. - */ -#define NGX_USE_TIMER_EVENT 0x00000800 - -/* - * All event filters on file descriptor are deleted after a notification: - * Solaris 10's event ports. - */ -#define NGX_USE_EVENTPORT_EVENT 0x00001000 - -/* - * The event filter support vnode notifications: kqueue. - */ -#define NGX_USE_VNODE_EVENT 0x00002000 - - -/* - * The event filter is deleted just before the closing file. - * Has no meaning for select and poll. - * kqueue, epoll, eventport: allows to avoid explicit delete, - * because filter automatically is deleted - * on file close, - * - * /dev/poll: we need to flush POLLREMOVE event - * before closing file. - */ -#define NGX_CLOSE_EVENT 1 - -/* - * disable temporarily event filter, this may avoid locks - * in kernel malloc()/free(): kqueue. - */ -#define NGX_DISABLE_EVENT 2 - -/* - * event must be passed to kernel right now, do not wait until batch processing. - */ -#define NGX_FLUSH_EVENT 4 - - -/* these flags have a meaning only for kqueue */ -#define NGX_LOWAT_EVENT 0 -#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 -#define NGX_WRITE_EVENT EVFILT_WRITE - -#undef NGX_VNODE_EVENT -#define NGX_VNODE_EVENT EVFILT_VNODE - -/* - * NGX_CLOSE_EVENT, NGX_LOWAT_EVENT, and NGX_FLUSH_EVENT are the module flags - * and they must not go into a kernel so we need to choose the value - * that must not interfere with any existent and future kqueue flags. - * kqueue has such values - EV_FLAG1, EV_EOF, and EV_ERROR: - * they are reserved and cleared on a kernel entrance. - */ -#undef NGX_CLOSE_EVENT -#define NGX_CLOSE_EVENT EV_EOF - -#undef NGX_LOWAT_EVENT -#define NGX_LOWAT_EVENT EV_FLAG1 - -#undef NGX_FLUSH_EVENT -#define NGX_FLUSH_EVENT EV_ERROR - -#define NGX_LEVEL_EVENT 0 -#define NGX_ONESHOT_EVENT EV_ONESHOT -#define NGX_CLEAR_EVENT EV_CLEAR - -#undef NGX_DISABLE_EVENT -#define NGX_DISABLE_EVENT EV_DISABLE - - -#elif (NGX_HAVE_DEVPOLL && !(NGX_TEST_BUILD_DEVPOLL)) \ - || (NGX_HAVE_EVENTPORT && !(NGX_TEST_BUILD_EVENTPORT)) - -#define NGX_READ_EVENT POLLIN -#define NGX_WRITE_EVENT POLLOUT - -#define NGX_LEVEL_EVENT 0 -#define NGX_ONESHOT_EVENT 1 - - -#elif (NGX_HAVE_EPOLL) && !(NGX_TEST_BUILD_EPOLL) - -#define NGX_READ_EVENT (EPOLLIN|EPOLLRDHUP) -#define NGX_WRITE_EVENT EPOLLOUT - -#define NGX_LEVEL_EVENT 0 -#define NGX_CLEAR_EVENT EPOLLET -#define NGX_ONESHOT_EVENT 0x70000000 -#if 0 -#define NGX_ONESHOT_EVENT EPOLLONESHOT -#endif - -#if (NGX_HAVE_EPOLLEXCLUSIVE) -#define NGX_EXCLUSIVE_EVENT EPOLLEXCLUSIVE -#endif - -#elif (NGX_HAVE_POLL) - -#define NGX_READ_EVENT POLLIN -#define NGX_WRITE_EVENT POLLOUT - -#define NGX_LEVEL_EVENT 0 -#define NGX_ONESHOT_EVENT 1 - - -#else /* select */ - -#define NGX_READ_EVENT 0 -#define NGX_WRITE_EVENT 1 - -#define NGX_LEVEL_EVENT 0 -#define NGX_ONESHOT_EVENT 1 - -#endif /* NGX_HAVE_KQUEUE */ - - -#if (NGX_HAVE_IOCP) -#define NGX_IOCP_ACCEPT 0 -#define NGX_IOCP_IO 1 -#define NGX_IOCP_CONNECT 2 -#endif - - -#if (NGX_TEST_BUILD_EPOLL) -#define NGX_EXCLUSIVE_EVENT 0 -#endif - - -#ifndef NGX_CLEAR_EVENT -#define NGX_CLEAR_EVENT 0 /* dummy declaration */ -#endif - - -#define ngx_process_events ngx_event_actions.process_events -#define ngx_done_events ngx_event_actions.done - -#define ngx_add_event ngx_event_actions.add -#define ngx_del_event ngx_event_actions.del -#define ngx_add_conn ngx_event_actions.add_conn -#define ngx_del_conn ngx_event_actions.del_conn - -#define ngx_notify ngx_event_actions.notify - -#define ngx_add_timer ngx_event_add_timer -#define ngx_del_timer ngx_event_del_timer - - -extern ngx_os_io_t ngx_io; - -#define ngx_recv ngx_io.recv -#define ngx_recv_chain ngx_io.recv_chain -#define ngx_udp_recv ngx_io.udp_recv -#define ngx_send ngx_io.send -#define ngx_send_chain ngx_io.send_chain -#define ngx_udp_send ngx_io.udp_send -#define ngx_udp_send_chain ngx_io.udp_send_chain - - -#define NGX_EVENT_MODULE 0x544E5645 /* "EVNT" */ -#define NGX_EVENT_CONF 0x02000000 - - -typedef struct { - ngx_uint_t connections; - ngx_uint_t use; - - ngx_flag_t multi_accept; - ngx_flag_t accept_mutex; - - ngx_msec_t accept_mutex_delay; - - u_char *name; - -#if (NGX_DEBUG) - ngx_array_t debug_connection; -#endif -} ngx_event_conf_t; - - -typedef struct { - ngx_str_t *name; - - void *(*create_conf)(ngx_cycle_t *cycle); - char *(*init_conf)(ngx_cycle_t *cycle, void *conf); - - ngx_event_actions_t actions; -} ngx_event_module_t; - - -extern ngx_atomic_t *ngx_connection_counter; - -extern ngx_atomic_t *ngx_accept_mutex_ptr; -extern ngx_shmtx_t ngx_accept_mutex; -extern ngx_uint_t ngx_use_accept_mutex; -extern ngx_uint_t ngx_accept_events; -extern ngx_uint_t ngx_accept_mutex_held; -extern ngx_msec_t ngx_accept_mutex_delay; -extern ngx_int_t ngx_accept_disabled; - - -#if (NGX_STAT_STUB) - -extern ngx_atomic_t *ngx_stat_accepted; -extern ngx_atomic_t *ngx_stat_handled; -extern ngx_atomic_t *ngx_stat_requests; -extern ngx_atomic_t *ngx_stat_active; -extern ngx_atomic_t *ngx_stat_reading; -extern ngx_atomic_t *ngx_stat_writing; -extern ngx_atomic_t *ngx_stat_waiting; - -#endif - - -#define NGX_UPDATE_TIME 1 -#define NGX_POST_EVENTS 2 - - -extern sig_atomic_t ngx_event_timer_alarm; -extern ngx_uint_t ngx_event_flags; -extern ngx_module_t ngx_events_module; -extern ngx_module_t ngx_event_core_module; - - -#define ngx_event_get_conf(conf_ctx, module) \ - (*(ngx_get_conf(conf_ctx, ngx_events_module))) [module.ctx_index]; - - - -void ngx_event_accept(ngx_event_t *ev); -#if !(NGX_WIN32) -void ngx_event_recvmsg(ngx_event_t *ev); -#endif -ngx_int_t ngx_trylock_accept_mutex(ngx_cycle_t *cycle); -u_char *ngx_accept_log_error(ngx_log_t *log, u_char *buf, size_t len); - - -void ngx_process_events_and_timers(ngx_cycle_t *cycle); -ngx_int_t ngx_handle_read_event(ngx_event_t *rev, ngx_uint_t flags); -ngx_int_t ngx_handle_write_event(ngx_event_t *wev, size_t lowat); - - -#if (NGX_WIN32) -void ngx_event_acceptex(ngx_event_t *ev); -ngx_int_t ngx_event_post_acceptex(ngx_listening_t *ls, ngx_uint_t n); -u_char *ngx_acceptex_log_error(ngx_log_t *log, u_char *buf, size_t len); -#endif - - -ngx_int_t ngx_send_lowat(ngx_connection_t *c, size_t lowat); - - -/* used in ngx_log_debugX() */ -#define ngx_event_ident(p) ((ngx_connection_t *) (p))->fd - - -#include <ngx_event_timer.h> -#include <ngx_event_posted.h> - -#if (NGX_WIN32) -#include <ngx_iocp_module.h> -#endif - - -#endif /* _NGX_EVENT_H_INCLUDED_ */ |