Mercurial > hg > nginx-quic
view src/event/ngx_event_posted.c @ 374:213f17e9f776
nginx-0.0.7-2004-07-02-09:47:00 import
author | Igor Sysoev <igor@sysoev.ru> |
---|---|
date | Fri, 02 Jul 2004 05:47:00 +0000 |
parents | 018569a8f09c |
children | 744ccb59062d |
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#include <ngx_config.h> #include <ngx_core.h> #include <ngx_event.h> ngx_thread_volatile ngx_event_t *ngx_posted_events; #if (NGX_THREADS) ngx_mutex_t *ngx_posted_events_mutex; ngx_cond_t *ngx_posted_events_cv; #endif void ngx_event_process_posted(ngx_cycle_t *cycle) { ngx_event_t *ev; for ( ;; ) { ev = (ngx_event_t *) ngx_posted_events; ngx_log_debug1(NGX_LOG_DEBUG_EVENT, cycle->log, 0, "posted event " PTR_FMT, ev); if (ev == NULL) { return; } ngx_posted_events = ev->next; if (ev->accept) { continue; } if ((!ev->posted && !ev->active) || (ev->use_instance && ev->instance != ev->returned_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, "stale posted event " PTR_FMT, ev); continue; } if (ev->posted) { ev->posted = 0; } ev->event_handler(ev); } } #if (NGX_THREADS) ngx_int_t ngx_event_thread_process_posted(ngx_cycle_t *cycle) { ngx_event_t *ev, **ep; for ( ;; ) { ev = (ngx_event_t *) ngx_posted_events; ep = (ngx_event_t **) &ngx_posted_events; for ( ;; ) { ngx_log_debug1(NGX_LOG_DEBUG_EVENT, cycle->log, 0, "posted event " PTR_FMT, ev); if (ev == NULL) { ngx_mutex_unlock(ngx_posted_events_mutex); return NGX_OK; } ngx_log_debug2(NGX_LOG_DEBUG_EVENT, cycle->log, 0, "posted event lock:%d " PTR_FMT, *(ev->lock), ev->lock); if (ngx_trylock(ev->lock) == 0) { ngx_log_debug1(NGX_LOG_DEBUG_EVENT, cycle->log, 0, "posted event " PTR_FMT " is busy", ev); ep = &ev->next; ev = ev->next; continue; } *ep = ev->next; if ((!ev->posted && !ev->active) || (ev->use_instance && ev->instance != ev->returned_instance)) { /* * The stale event from a file descriptor that was just * closed in this iteration. We use ngx_cycle->log * because ev->log may be already destoyed. */ ngx_log_debug1(NGX_LOG_DEBUG_EVENT, ngx_cycle->log, 0, "kevent: stale event " PTR_FMT, ev); ngx_unlock(ev->lock); ev = ev->next; continue; } ev->locked = 1; if (ev->posted) { ev->ready = ev->posted_ready; ev->timedout = ev->posted_timedout; ev->available = ev->posted_available; ev->kq_eof = ev->posted_eof; #if (HAVE_KQUEUE) ev->kq_errno = ev->posted_errno; #endif ev->posted = 0; } ngx_mutex_unlock(ngx_posted_events_mutex); ev->event_handler(ev); if (ngx_mutex_lock(ngx_posted_events_mutex) == NGX_ERROR) { return NGX_ERROR; } if (ev->locked) { ngx_unlock(ev->lock); } break; } } } #endif