diff options
Diffstat (limited to 'app/nginx/src/event/modules/ngx_eventport_module.c')
-rw-r--r-- | app/nginx/src/event/modules/ngx_eventport_module.c | 649 |
1 files changed, 0 insertions, 649 deletions
diff --git a/app/nginx/src/event/modules/ngx_eventport_module.c b/app/nginx/src/event/modules/ngx_eventport_module.c deleted file mode 100644 index e723f92..0000000 --- a/app/nginx/src/event/modules/ngx_eventport_module.c +++ /dev/null @@ -1,649 +0,0 @@ - -/* - * Copyright (C) Igor Sysoev - * Copyright (C) Nginx, Inc. - */ - - -#include <ngx_config.h> -#include <ngx_core.h> -#include <ngx_event.h> - - -#if (NGX_TEST_BUILD_EVENTPORT) - -#define ushort_t u_short -#define uint_t u_int - -#ifndef CLOCK_REALTIME -#define CLOCK_REALTIME 0 -typedef int clockid_t; -typedef void * timer_t; -#endif - -/* Solaris declarations */ - -#define PORT_SOURCE_AIO 1 -#define PORT_SOURCE_TIMER 2 -#define PORT_SOURCE_USER 3 -#define PORT_SOURCE_FD 4 -#define PORT_SOURCE_ALERT 5 -#define PORT_SOURCE_MQ 6 - -#ifndef ETIME -#define ETIME 64 -#endif - -#define SIGEV_PORT 4 - -typedef struct { - int portev_events; /* event data is source specific */ - ushort_t portev_source; /* event source */ - ushort_t portev_pad; /* port internal use */ - uintptr_t portev_object; /* source specific object */ - void *portev_user; /* user cookie */ -} port_event_t; - -typedef struct port_notify { - int portnfy_port; /* bind request(s) to port */ - void *portnfy_user; /* user defined */ -} port_notify_t; - -#if (__FreeBSD__ && __FreeBSD_version < 700005) || (NGX_DARWIN) - -typedef struct itimerspec { /* definition per POSIX.4 */ - struct timespec it_interval;/* timer period */ - struct timespec it_value; /* timer expiration */ -} itimerspec_t; - -#endif - -int port_create(void); - -int port_create(void) -{ - return -1; -} - - -int port_associate(int port, int source, uintptr_t object, int events, - void *user); - -int port_associate(int port, int source, uintptr_t object, int events, - void *user) -{ - return -1; -} - - -int port_dissociate(int port, int source, uintptr_t object); - -int port_dissociate(int port, int source, uintptr_t object) -{ - return -1; -} - - -int port_getn(int port, port_event_t list[], uint_t max, uint_t *nget, - struct timespec *timeout); - -int port_getn(int port, port_event_t list[], uint_t max, uint_t *nget, - struct timespec *timeout) -{ - return -1; -} - -int port_send(int port, int events, void *user); - -int port_send(int port, int events, void *user) -{ - return -1; -} - - -int timer_create(clockid_t clock_id, struct sigevent *evp, timer_t *timerid); - -int timer_create(clockid_t clock_id, struct sigevent *evp, timer_t *timerid) -{ - return -1; -} - - -int timer_settime(timer_t timerid, int flags, const struct itimerspec *value, - struct itimerspec *ovalue); - -int timer_settime(timer_t timerid, int flags, const struct itimerspec *value, - struct itimerspec *ovalue) -{ - return -1; -} - - -int timer_delete(timer_t timerid); - -int timer_delete(timer_t timerid) -{ - return -1; -} - -#endif - - -typedef struct { - ngx_uint_t events; -} ngx_eventport_conf_t; - - -static ngx_int_t ngx_eventport_init(ngx_cycle_t *cycle, ngx_msec_t timer); -static void ngx_eventport_done(ngx_cycle_t *cycle); -static ngx_int_t ngx_eventport_add_event(ngx_event_t *ev, ngx_int_t event, - ngx_uint_t flags); -static ngx_int_t ngx_eventport_del_event(ngx_event_t *ev, ngx_int_t event, - ngx_uint_t flags); -static ngx_int_t ngx_eventport_notify(ngx_event_handler_pt handler); -static ngx_int_t ngx_eventport_process_events(ngx_cycle_t *cycle, - ngx_msec_t timer, ngx_uint_t flags); - -static void *ngx_eventport_create_conf(ngx_cycle_t *cycle); -static char *ngx_eventport_init_conf(ngx_cycle_t *cycle, void *conf); - -static int ep = -1; -static port_event_t *event_list; -static ngx_uint_t nevents; -static timer_t event_timer = (timer_t) -1; -static ngx_event_t notify_event; - -static ngx_str_t eventport_name = ngx_string("eventport"); - - -static ngx_command_t ngx_eventport_commands[] = { - - { ngx_string("eventport_events"), - NGX_EVENT_CONF|NGX_CONF_TAKE1, - ngx_conf_set_num_slot, - 0, - offsetof(ngx_eventport_conf_t, events), - NULL }, - - ngx_null_command -}; - - -static ngx_event_module_t ngx_eventport_module_ctx = { - &eventport_name, - ngx_eventport_create_conf, /* create configuration */ - ngx_eventport_init_conf, /* init configuration */ - - { - ngx_eventport_add_event, /* add an event */ - ngx_eventport_del_event, /* delete an event */ - ngx_eventport_add_event, /* enable an event */ - ngx_eventport_del_event, /* disable an event */ - NULL, /* add an connection */ - NULL, /* delete an connection */ - ngx_eventport_notify, /* trigger a notify */ - ngx_eventport_process_events, /* process the events */ - ngx_eventport_init, /* init the events */ - ngx_eventport_done, /* done the events */ - } - -}; - -ngx_module_t ngx_eventport_module = { - NGX_MODULE_V1, - &ngx_eventport_module_ctx, /* module context */ - ngx_eventport_commands, /* module directives */ - NGX_EVENT_MODULE, /* module type */ - NULL, /* init master */ - NULL, /* init module */ - NULL, /* init process */ - NULL, /* init thread */ - NULL, /* exit thread */ - NULL, /* exit process */ - NULL, /* exit master */ - NGX_MODULE_V1_PADDING -}; - - -static ngx_int_t -ngx_eventport_init(ngx_cycle_t *cycle, ngx_msec_t timer) -{ - port_notify_t pn; - struct itimerspec its; - struct sigevent sev; - ngx_eventport_conf_t *epcf; - - epcf = ngx_event_get_conf(cycle->conf_ctx, ngx_eventport_module); - - if (ep == -1) { - ep = port_create(); - - if (ep == -1) { - ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno, - "port_create() failed"); - return NGX_ERROR; - } - - notify_event.active = 1; - notify_event.log = cycle->log; - } - - if (nevents < epcf->events) { - if (event_list) { - ngx_free(event_list); - } - - event_list = ngx_alloc(sizeof(port_event_t) * epcf->events, - cycle->log); - if (event_list == NULL) { - return NGX_ERROR; - } - } - - ngx_event_flags = NGX_USE_EVENTPORT_EVENT; - - if (timer) { - ngx_memzero(&pn, sizeof(port_notify_t)); - pn.portnfy_port = ep; - - ngx_memzero(&sev, sizeof(struct sigevent)); - sev.sigev_notify = SIGEV_PORT; -#if !(NGX_TEST_BUILD_EVENTPORT) - sev.sigev_value.sival_ptr = &pn; -#endif - - if (timer_create(CLOCK_REALTIME, &sev, &event_timer) == -1) { - ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno, - "timer_create() failed"); - return NGX_ERROR; - } - - its.it_interval.tv_sec = timer / 1000; - its.it_interval.tv_nsec = (timer % 1000) * 1000000; - its.it_value.tv_sec = timer / 1000; - its.it_value.tv_nsec = (timer % 1000) * 1000000; - - if (timer_settime(event_timer, 0, &its, NULL) == -1) { - ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno, - "timer_settime() failed"); - return NGX_ERROR; - } - - ngx_event_flags |= NGX_USE_TIMER_EVENT; - } - - nevents = epcf->events; - - ngx_io = ngx_os_io; - - ngx_event_actions = ngx_eventport_module_ctx.actions; - - return NGX_OK; -} - - -static void -ngx_eventport_done(ngx_cycle_t *cycle) -{ - if (event_timer != (timer_t) -1) { - if (timer_delete(event_timer) == -1) { - ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, - "timer_delete() failed"); - } - - event_timer = (timer_t) -1; - } - - if (close(ep) == -1) { - ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, - "close() event port failed"); - } - - ep = -1; - - ngx_free(event_list); - - event_list = NULL; - nevents = 0; -} - - -static ngx_int_t -ngx_eventport_add_event(ngx_event_t *ev, ngx_int_t event, ngx_uint_t flags) -{ - ngx_int_t events, prev; - ngx_event_t *e; - ngx_connection_t *c; - - c = ev->data; - - events = event; - - if (event == NGX_READ_EVENT) { - e = c->write; - prev = POLLOUT; -#if (NGX_READ_EVENT != POLLIN) - events = POLLIN; -#endif - - } else { - e = c->read; - prev = POLLIN; -#if (NGX_WRITE_EVENT != POLLOUT) - events = POLLOUT; -#endif - } - - if (e->oneshot) { - events |= prev; - } - - ngx_log_debug2(NGX_LOG_DEBUG_EVENT, ev->log, 0, - "eventport add event: fd:%d ev:%04Xi", c->fd, events); - - if (port_associate(ep, PORT_SOURCE_FD, c->fd, events, - (void *) ((uintptr_t) ev | ev->instance)) - == -1) - { - ngx_log_error(NGX_LOG_ALERT, ev->log, ngx_errno, - "port_associate() failed"); - return NGX_ERROR; - } - - ev->active = 1; - ev->oneshot = 1; - - return NGX_OK; -} - - -static ngx_int_t -ngx_eventport_del_event(ngx_event_t *ev, ngx_int_t event, ngx_uint_t flags) -{ - ngx_event_t *e; - ngx_connection_t *c; - - /* - * when the file descriptor is closed, the event port automatically - * dissociates it from the port, so we do not need to dissociate explicitly - * the event before the closing the file descriptor - */ - - if (flags & NGX_CLOSE_EVENT) { - ev->active = 0; - ev->oneshot = 0; - return NGX_OK; - } - - c = ev->data; - - if (event == NGX_READ_EVENT) { - e = c->write; - event = POLLOUT; - - } else { - e = c->read; - event = POLLIN; - } - - if (e->oneshot) { - ngx_log_debug2(NGX_LOG_DEBUG_EVENT, ev->log, 0, - "eventport change event: fd:%d ev:%04Xi", c->fd, event); - - if (port_associate(ep, PORT_SOURCE_FD, c->fd, event, - (void *) ((uintptr_t) ev | ev->instance)) - == -1) - { - ngx_log_error(NGX_LOG_ALERT, ev->log, ngx_errno, - "port_associate() failed"); - return NGX_ERROR; - } - - } else { - ngx_log_debug1(NGX_LOG_DEBUG_EVENT, ev->log, 0, - "eventport del event: fd:%d", c->fd); - - if (port_dissociate(ep, PORT_SOURCE_FD, c->fd) == -1) { - ngx_log_error(NGX_LOG_ALERT, ev->log, ngx_errno, - "port_dissociate() failed"); - return NGX_ERROR; - } - } - - ev->active = 0; - ev->oneshot = 0; - - return NGX_OK; -} - - -static ngx_int_t -ngx_eventport_notify(ngx_event_handler_pt handler) -{ - notify_event.handler = handler; - - if (port_send(ep, 0, ¬ify_event) != 0) { - ngx_log_error(NGX_LOG_ALERT, notify_event.log, ngx_errno, - "port_send() failed"); - return NGX_ERROR; - } - - return NGX_OK; -} - - -static ngx_int_t -ngx_eventport_process_events(ngx_cycle_t *cycle, ngx_msec_t timer, - ngx_uint_t flags) -{ - int n, revents; - u_int events; - ngx_err_t err; - ngx_int_t instance; - ngx_uint_t i, level; - ngx_event_t *ev, *rev, *wev; - ngx_queue_t *queue; - ngx_connection_t *c; - struct timespec ts, *tp; - - if (timer == NGX_TIMER_INFINITE) { - tp = NULL; - - } else { - ts.tv_sec = timer / 1000; - ts.tv_nsec = (timer % 1000) * 1000000; - tp = &ts; - } - - ngx_log_debug1(NGX_LOG_DEBUG_EVENT, cycle->log, 0, - "eventport timer: %M", timer); - - events = 1; - - n = port_getn(ep, event_list, (u_int) nevents, &events, tp); - - err = ngx_errno; - - if (flags & NGX_UPDATE_TIME) { - ngx_time_update(); - } - - if (n == -1) { - if (err == ETIME) { - if (timer != NGX_TIMER_INFINITE) { - return NGX_OK; - } - - ngx_log_error(NGX_LOG_ALERT, cycle->log, 0, - "port_getn() returned no events without timeout"); - return NGX_ERROR; - } - - level = (err == NGX_EINTR) ? NGX_LOG_INFO : NGX_LOG_ALERT; - ngx_log_error(level, cycle->log, err, "port_getn() failed"); - return NGX_ERROR; - } - - if (events == 0) { - if (timer != NGX_TIMER_INFINITE) { - return NGX_OK; - } - - ngx_log_error(NGX_LOG_ALERT, cycle->log, 0, - "port_getn() returned no events without timeout"); - return NGX_ERROR; - } - - for (i = 0; i < events; i++) { - - if (event_list[i].portev_source == PORT_SOURCE_TIMER) { - ngx_time_update(); - continue; - } - - ev = event_list[i].portev_user; - - switch (event_list[i].portev_source) { - - case PORT_SOURCE_FD: - - instance = (uintptr_t) ev & 1; - ev = (ngx_event_t *) ((uintptr_t) ev & (uintptr_t) ~1); - - if (ev->closed || ev->instance != instance) { - - /* - * the stale event from a file descriptor - * that was just closed in this iteration - */ - - ngx_log_debug1(NGX_LOG_DEBUG_EVENT, cycle->log, 0, - "eventport: stale event %p", ev); - continue; - } - - revents = event_list[i].portev_events; - - ngx_log_debug2(NGX_LOG_DEBUG_EVENT, cycle->log, 0, - "eventport: fd:%d, ev:%04Xd", - (int) event_list[i].portev_object, revents); - - if (revents & (POLLERR|POLLHUP|POLLNVAL)) { - ngx_log_debug2(NGX_LOG_DEBUG_EVENT, cycle->log, 0, - "port_getn() error fd:%d ev:%04Xd", - (int) event_list[i].portev_object, revents); - } - - if (revents & ~(POLLIN|POLLOUT|POLLERR|POLLHUP|POLLNVAL)) { - ngx_log_error(NGX_LOG_ALERT, cycle->log, 0, - "strange port_getn() events fd:%d ev:%04Xd", - (int) event_list[i].portev_object, revents); - } - - if (revents & (POLLERR|POLLHUP|POLLNVAL)) { - - /* - * if the error events were returned, add POLLIN and POLLOUT - * to handle the events at least in one active handler - */ - - revents |= POLLIN|POLLOUT; - } - - c = ev->data; - rev = c->read; - wev = c->write; - - rev->active = 0; - wev->active = 0; - - if (revents & POLLIN) { - rev->ready = 1; - - if (flags & NGX_POST_EVENTS) { - queue = rev->accept ? &ngx_posted_accept_events - : &ngx_posted_events; - - ngx_post_event(rev, queue); - - } else { - rev->handler(rev); - - if (ev->closed || ev->instance != instance) { - continue; - } - } - - if (rev->accept) { - if (ngx_use_accept_mutex) { - ngx_accept_events = 1; - continue; - } - - if (port_associate(ep, PORT_SOURCE_FD, c->fd, POLLIN, - (void *) ((uintptr_t) ev | ev->instance)) - == -1) - { - ngx_log_error(NGX_LOG_ALERT, ev->log, ngx_errno, - "port_associate() failed"); - return NGX_ERROR; - } - } - } - - if (revents & POLLOUT) { - wev->ready = 1; - - if (flags & NGX_POST_EVENTS) { - ngx_post_event(wev, &ngx_posted_events); - - } else { - wev->handler(wev); - } - } - - continue; - - case PORT_SOURCE_USER: - - ev->handler(ev); - - continue; - - default: - ngx_log_error(NGX_LOG_ALERT, cycle->log, 0, - "unexpected eventport object %d", - (int) event_list[i].portev_object); - continue; - } - } - - return NGX_OK; -} - - -static void * -ngx_eventport_create_conf(ngx_cycle_t *cycle) -{ - ngx_eventport_conf_t *epcf; - - epcf = ngx_palloc(cycle->pool, sizeof(ngx_eventport_conf_t)); - if (epcf == NULL) { - return NULL; - } - - epcf->events = NGX_CONF_UNSET; - - return epcf; -} - - -static char * -ngx_eventport_init_conf(ngx_cycle_t *cycle, void *conf) -{ - ngx_eventport_conf_t *epcf = conf; - - ngx_conf_init_uint_value(epcf->events, 32); - - return NGX_CONF_OK; -} |