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-rw-r--r--app/nginx/src/event/modules/ngx_kqueue_module.c722
1 files changed, 0 insertions, 722 deletions
diff --git a/app/nginx/src/event/modules/ngx_kqueue_module.c b/app/nginx/src/event/modules/ngx_kqueue_module.c
deleted file mode 100644
index 9c7244c..0000000
--- a/app/nginx/src/event/modules/ngx_kqueue_module.c
+++ /dev/null
@@ -1,722 +0,0 @@
-
-/*
- * Copyright (C) Igor Sysoev
- * Copyright (C) Nginx, Inc.
- */
-
-
-#include <ngx_config.h>
-#include <ngx_core.h>
-#include <ngx_event.h>
-
-
-typedef struct {
- ngx_uint_t changes;
- ngx_uint_t events;
-} ngx_kqueue_conf_t;
-
-
-static ngx_int_t ngx_kqueue_init(ngx_cycle_t *cycle, ngx_msec_t timer);
-#ifdef EVFILT_USER
-static ngx_int_t ngx_kqueue_notify_init(ngx_log_t *log);
-#endif
-static void ngx_kqueue_done(ngx_cycle_t *cycle);
-static ngx_int_t ngx_kqueue_add_event(ngx_event_t *ev, ngx_int_t event,
- ngx_uint_t flags);
-static ngx_int_t ngx_kqueue_del_event(ngx_event_t *ev, ngx_int_t event,
- ngx_uint_t flags);
-static ngx_int_t ngx_kqueue_set_event(ngx_event_t *ev, ngx_int_t filter,
- ngx_uint_t flags);
-#ifdef EVFILT_USER
-static ngx_int_t ngx_kqueue_notify(ngx_event_handler_pt handler);
-#endif
-static ngx_int_t ngx_kqueue_process_events(ngx_cycle_t *cycle, ngx_msec_t timer,
- ngx_uint_t flags);
-static ngx_inline void ngx_kqueue_dump_event(ngx_log_t *log,
- struct kevent *kev);
-
-static void *ngx_kqueue_create_conf(ngx_cycle_t *cycle);
-static char *ngx_kqueue_init_conf(ngx_cycle_t *cycle, void *conf);
-
-
-int ngx_kqueue = -1;
-
-static struct kevent *change_list;
-static struct kevent *event_list;
-static ngx_uint_t max_changes, nchanges, nevents;
-
-#ifdef EVFILT_USER
-static ngx_event_t notify_event;
-static struct kevent notify_kev;
-#endif
-
-
-static ngx_str_t kqueue_name = ngx_string("kqueue");
-
-static ngx_command_t ngx_kqueue_commands[] = {
-
- { ngx_string("kqueue_changes"),
- NGX_EVENT_CONF|NGX_CONF_TAKE1,
- ngx_conf_set_num_slot,
- 0,
- offsetof(ngx_kqueue_conf_t, changes),
- NULL },
-
- { ngx_string("kqueue_events"),
- NGX_EVENT_CONF|NGX_CONF_TAKE1,
- ngx_conf_set_num_slot,
- 0,
- offsetof(ngx_kqueue_conf_t, events),
- NULL },
-
- ngx_null_command
-};
-
-
-static ngx_event_module_t ngx_kqueue_module_ctx = {
- &kqueue_name,
- ngx_kqueue_create_conf, /* create configuration */
- ngx_kqueue_init_conf, /* init configuration */
-
- {
- ngx_kqueue_add_event, /* add an event */
- ngx_kqueue_del_event, /* delete an event */
- ngx_kqueue_add_event, /* enable an event */
- ngx_kqueue_del_event, /* disable an event */
- NULL, /* add an connection */
- NULL, /* delete an connection */
-#ifdef EVFILT_USER
- ngx_kqueue_notify, /* trigger a notify */
-#else
- NULL, /* trigger a notify */
-#endif
- ngx_kqueue_process_events, /* process the events */
- ngx_kqueue_init, /* init the events */
- ngx_kqueue_done /* done the events */
- }
-
-};
-
-ngx_module_t ngx_kqueue_module = {
- NGX_MODULE_V1,
- &ngx_kqueue_module_ctx, /* module context */
- ngx_kqueue_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_kqueue_init(ngx_cycle_t *cycle, ngx_msec_t timer)
-{
- ngx_kqueue_conf_t *kcf;
- struct timespec ts;
-#if (NGX_HAVE_TIMER_EVENT)
- struct kevent kev;
-#endif
-
- kcf = ngx_event_get_conf(cycle->conf_ctx, ngx_kqueue_module);
-
- if (ngx_kqueue == -1) {
- ngx_kqueue = kqueue();
-
- if (ngx_kqueue == -1) {
- ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno,
- "kqueue() failed");
- return NGX_ERROR;
- }
-
-#ifdef EVFILT_USER
- if (ngx_kqueue_notify_init(cycle->log) != NGX_OK) {
- return NGX_ERROR;
- }
-#endif
- }
-
- if (max_changes < kcf->changes) {
- if (nchanges) {
- ts.tv_sec = 0;
- ts.tv_nsec = 0;
-
- if (kevent(ngx_kqueue, change_list, (int) nchanges, NULL, 0, &ts)
- == -1)
- {
- ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
- "kevent() failed");
- return NGX_ERROR;
- }
- nchanges = 0;
- }
-
- if (change_list) {
- ngx_free(change_list);
- }
-
- change_list = ngx_alloc(kcf->changes * sizeof(struct kevent),
- cycle->log);
- if (change_list == NULL) {
- return NGX_ERROR;
- }
- }
-
- max_changes = kcf->changes;
-
- if (nevents < kcf->events) {
- if (event_list) {
- ngx_free(event_list);
- }
-
- event_list = ngx_alloc(kcf->events * sizeof(struct kevent), cycle->log);
- if (event_list == NULL) {
- return NGX_ERROR;
- }
- }
-
- ngx_event_flags = NGX_USE_ONESHOT_EVENT
- |NGX_USE_KQUEUE_EVENT
- |NGX_USE_VNODE_EVENT;
-
-#if (NGX_HAVE_TIMER_EVENT)
-
- if (timer) {
- kev.ident = 0;
- kev.filter = EVFILT_TIMER;
- kev.flags = EV_ADD|EV_ENABLE;
- kev.fflags = 0;
- kev.data = timer;
- kev.udata = 0;
-
- ts.tv_sec = 0;
- ts.tv_nsec = 0;
-
- if (kevent(ngx_kqueue, &kev, 1, NULL, 0, &ts) == -1) {
- ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
- "kevent(EVFILT_TIMER) failed");
- return NGX_ERROR;
- }
-
- ngx_event_flags |= NGX_USE_TIMER_EVENT;
- }
-
-#endif
-
-#if (NGX_HAVE_CLEAR_EVENT)
- ngx_event_flags |= NGX_USE_CLEAR_EVENT;
-#else
- ngx_event_flags |= NGX_USE_LEVEL_EVENT;
-#endif
-
-#if (NGX_HAVE_LOWAT_EVENT)
- ngx_event_flags |= NGX_USE_LOWAT_EVENT;
-#endif
-
- nevents = kcf->events;
-
- ngx_io = ngx_os_io;
-
- ngx_event_actions = ngx_kqueue_module_ctx.actions;
-
- return NGX_OK;
-}
-
-
-#ifdef EVFILT_USER
-
-static ngx_int_t
-ngx_kqueue_notify_init(ngx_log_t *log)
-{
- notify_kev.ident = 0;
- notify_kev.filter = EVFILT_USER;
- notify_kev.data = 0;
- notify_kev.flags = EV_ADD|EV_CLEAR;
- notify_kev.fflags = 0;
- notify_kev.udata = 0;
-
- if (kevent(ngx_kqueue, &notify_kev, 1, NULL, 0, NULL) == -1) {
- ngx_log_error(NGX_LOG_ALERT, log, ngx_errno,
- "kevent(EVFILT_USER, EV_ADD) failed");
- return NGX_ERROR;
- }
-
- notify_event.active = 1;
- notify_event.log = log;
-
- notify_kev.flags = 0;
- notify_kev.fflags = NOTE_TRIGGER;
- notify_kev.udata = NGX_KQUEUE_UDATA_T ((uintptr_t) &notify_event);
-
- return NGX_OK;
-}
-
-#endif
-
-
-static void
-ngx_kqueue_done(ngx_cycle_t *cycle)
-{
- if (close(ngx_kqueue) == -1) {
- ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
- "kqueue close() failed");
- }
-
- ngx_kqueue = -1;
-
- ngx_free(change_list);
- ngx_free(event_list);
-
- change_list = NULL;
- event_list = NULL;
- max_changes = 0;
- nchanges = 0;
- nevents = 0;
-}
-
-
-static ngx_int_t
-ngx_kqueue_add_event(ngx_event_t *ev, ngx_int_t event, ngx_uint_t flags)
-{
- ngx_int_t rc;
-#if 0
- ngx_event_t *e;
- ngx_connection_t *c;
-#endif
-
- ev->active = 1;
- ev->disabled = 0;
- ev->oneshot = (flags & NGX_ONESHOT_EVENT) ? 1 : 0;
-
-#if 0
-
- if (ev->index < nchanges
- && ((uintptr_t) change_list[ev->index].udata & (uintptr_t) ~1)
- == (uintptr_t) ev)
- {
- if (change_list[ev->index].flags == EV_DISABLE) {
-
- /*
- * if the EV_DISABLE is still not passed to a kernel
- * we will not pass it
- */
-
- ngx_log_debug2(NGX_LOG_DEBUG_EVENT, ev->log, 0,
- "kevent activated: %d: ft:%i",
- ngx_event_ident(ev->data), event);
-
- if (ev->index < --nchanges) {
- e = (ngx_event_t *)
- ((uintptr_t) change_list[nchanges].udata & (uintptr_t) ~1);
- change_list[ev->index] = change_list[nchanges];
- e->index = ev->index;
- }
-
- return NGX_OK;
- }
-
- c = ev->data;
-
- ngx_log_error(NGX_LOG_ALERT, ev->log, 0,
- "previous event on #%d were not passed in kernel", c->fd);
-
- return NGX_ERROR;
- }
-
-#endif
-
- rc = ngx_kqueue_set_event(ev, event, EV_ADD|EV_ENABLE|flags);
-
- return rc;
-}
-
-
-static ngx_int_t
-ngx_kqueue_del_event(ngx_event_t *ev, ngx_int_t event, ngx_uint_t flags)
-{
- ngx_int_t rc;
- ngx_event_t *e;
-
- ev->active = 0;
- ev->disabled = 0;
-
- if (ev->index < nchanges
- && ((uintptr_t) change_list[ev->index].udata & (uintptr_t) ~1)
- == (uintptr_t) ev)
- {
- ngx_log_debug2(NGX_LOG_DEBUG_EVENT, ev->log, 0,
- "kevent deleted: %d: ft:%i",
- ngx_event_ident(ev->data), event);
-
- /* if the event is still not passed to a kernel we will not pass it */
-
- nchanges--;
-
- if (ev->index < nchanges) {
- e = (ngx_event_t *)
- ((uintptr_t) change_list[nchanges].udata & (uintptr_t) ~1);
- change_list[ev->index] = change_list[nchanges];
- e->index = ev->index;
- }
-
- return NGX_OK;
- }
-
- /*
- * when the file descriptor is closed the kqueue automatically deletes
- * its filters so we do not need to delete explicitly the event
- * before the closing the file descriptor.
- */
-
- if (flags & NGX_CLOSE_EVENT) {
- return NGX_OK;
- }
-
- if (flags & NGX_DISABLE_EVENT) {
- ev->disabled = 1;
-
- } else {
- flags |= EV_DELETE;
- }
-
- rc = ngx_kqueue_set_event(ev, event, flags);
-
- return rc;
-}
-
-
-static ngx_int_t
-ngx_kqueue_set_event(ngx_event_t *ev, ngx_int_t filter, ngx_uint_t flags)
-{
- struct kevent *kev;
- struct timespec ts;
- ngx_connection_t *c;
-
- c = ev->data;
-
- ngx_log_debug3(NGX_LOG_DEBUG_EVENT, ev->log, 0,
- "kevent set event: %d: ft:%i fl:%04Xi",
- c->fd, filter, flags);
-
- if (nchanges >= max_changes) {
- ngx_log_error(NGX_LOG_WARN, ev->log, 0,
- "kqueue change list is filled up");
-
- ts.tv_sec = 0;
- ts.tv_nsec = 0;
-
- if (kevent(ngx_kqueue, change_list, (int) nchanges, NULL, 0, &ts)
- == -1)
- {
- ngx_log_error(NGX_LOG_ALERT, ev->log, ngx_errno, "kevent() failed");
- return NGX_ERROR;
- }
-
- nchanges = 0;
- }
-
- kev = &change_list[nchanges];
-
- kev->ident = c->fd;
- kev->filter = (short) filter;
- kev->flags = (u_short) flags;
- kev->udata = NGX_KQUEUE_UDATA_T ((uintptr_t) ev | ev->instance);
-
- if (filter == EVFILT_VNODE) {
- kev->fflags = NOTE_DELETE|NOTE_WRITE|NOTE_EXTEND
- |NOTE_ATTRIB|NOTE_RENAME
-#if (__FreeBSD__ == 4 && __FreeBSD_version >= 430000) \
- || __FreeBSD_version >= 500018
- |NOTE_REVOKE
-#endif
- ;
- kev->data = 0;
-
- } else {
-#if (NGX_HAVE_LOWAT_EVENT)
- if (flags & NGX_LOWAT_EVENT) {
- kev->fflags = NOTE_LOWAT;
- kev->data = ev->available;
-
- } else {
- kev->fflags = 0;
- kev->data = 0;
- }
-#else
- kev->fflags = 0;
- kev->data = 0;
-#endif
- }
-
- ev->index = nchanges;
- nchanges++;
-
- if (flags & NGX_FLUSH_EVENT) {
- ts.tv_sec = 0;
- ts.tv_nsec = 0;
-
- ngx_log_debug0(NGX_LOG_DEBUG_EVENT, ev->log, 0, "kevent flush");
-
- if (kevent(ngx_kqueue, change_list, (int) nchanges, NULL, 0, &ts)
- == -1)
- {
- ngx_log_error(NGX_LOG_ALERT, ev->log, ngx_errno, "kevent() failed");
- return NGX_ERROR;
- }
-
- nchanges = 0;
- }
-
- return NGX_OK;
-}
-
-
-#ifdef EVFILT_USER
-
-static ngx_int_t
-ngx_kqueue_notify(ngx_event_handler_pt handler)
-{
- notify_event.handler = handler;
-
- if (kevent(ngx_kqueue, &notify_kev, 1, NULL, 0, NULL) == -1) {
- ngx_log_error(NGX_LOG_ALERT, notify_event.log, ngx_errno,
- "kevent(EVFILT_USER, NOTE_TRIGGER) failed");
- return NGX_ERROR;
- }
-
- return NGX_OK;
-}
-
-#endif
-
-
-static ngx_int_t
-ngx_kqueue_process_events(ngx_cycle_t *cycle, ngx_msec_t timer,
- ngx_uint_t flags)
-{
- int events, n;
- ngx_int_t i, instance;
- ngx_uint_t level;
- ngx_err_t err;
- ngx_event_t *ev;
- ngx_queue_t *queue;
- struct timespec ts, *tp;
-
- n = (int) nchanges;
- nchanges = 0;
-
- if (timer == NGX_TIMER_INFINITE) {
- tp = NULL;
-
- } else {
-
- ts.tv_sec = timer / 1000;
- ts.tv_nsec = (timer % 1000) * 1000000;
-
- /*
- * 64-bit Darwin kernel has the bug: kernel level ts.tv_nsec is
- * the int32_t while user level ts.tv_nsec is the long (64-bit),
- * so on the big endian PowerPC all nanoseconds are lost.
- */
-
-#if (NGX_DARWIN_KEVENT_BUG)
- ts.tv_nsec <<= 32;
-#endif
-
- tp = &ts;
- }
-
- ngx_log_debug2(NGX_LOG_DEBUG_EVENT, cycle->log, 0,
- "kevent timer: %M, changes: %d", timer, n);
-
- events = kevent(ngx_kqueue, change_list, n, event_list, (int) nevents, tp);
-
- err = (events == -1) ? ngx_errno : 0;
-
- if (flags & NGX_UPDATE_TIME || ngx_event_timer_alarm) {
- ngx_time_update();
- }
-
- ngx_log_debug1(NGX_LOG_DEBUG_EVENT, cycle->log, 0,
- "kevent events: %d", events);
-
- if (err) {
- if (err == NGX_EINTR) {
-
- if (ngx_event_timer_alarm) {
- ngx_event_timer_alarm = 0;
- return NGX_OK;
- }
-
- level = NGX_LOG_INFO;
-
- } else {
- level = NGX_LOG_ALERT;
- }
-
- ngx_log_error(level, cycle->log, err, "kevent() failed");
- return NGX_ERROR;
- }
-
- if (events == 0) {
- if (timer != NGX_TIMER_INFINITE) {
- return NGX_OK;
- }
-
- ngx_log_error(NGX_LOG_ALERT, cycle->log, 0,
- "kevent() returned no events without timeout");
- return NGX_ERROR;
- }
-
- for (i = 0; i < events; i++) {
-
- ngx_kqueue_dump_event(cycle->log, &event_list[i]);
-
- if (event_list[i].flags & EV_ERROR) {
- ngx_log_error(NGX_LOG_ALERT, cycle->log, event_list[i].data,
- "kevent() error on %d filter:%d flags:%04Xd",
- (int) event_list[i].ident, event_list[i].filter,
- event_list[i].flags);
- continue;
- }
-
-#if (NGX_HAVE_TIMER_EVENT)
-
- if (event_list[i].filter == EVFILT_TIMER) {
- ngx_time_update();
- continue;
- }
-
-#endif
-
- ev = (ngx_event_t *) event_list[i].udata;
-
- switch (event_list[i].filter) {
-
- case EVFILT_READ:
- case EVFILT_WRITE:
-
- 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,
- "kevent: stale event %p", ev);
- continue;
- }
-
- if (ev->log && (ev->log->log_level & NGX_LOG_DEBUG_CONNECTION)) {
- ngx_kqueue_dump_event(ev->log, &event_list[i]);
- }
-
- if (ev->oneshot) {
- ev->active = 0;
- }
-
- ev->available = event_list[i].data;
-
- if (event_list[i].flags & EV_EOF) {
- ev->pending_eof = 1;
- ev->kq_errno = event_list[i].fflags;
- }
-
- ev->ready = 1;
-
- break;
-
- case EVFILT_VNODE:
- ev->kq_vnode = 1;
-
- break;
-
- case EVFILT_AIO:
- ev->complete = 1;
- ev->ready = 1;
-
- break;
-
-#ifdef EVFILT_USER
- case EVFILT_USER:
- break;
-#endif
-
- default:
- ngx_log_error(NGX_LOG_ALERT, cycle->log, 0,
- "unexpected kevent() filter %d",
- event_list[i].filter);
- continue;
- }
-
- if (flags & NGX_POST_EVENTS) {
- queue = ev->accept ? &ngx_posted_accept_events
- : &ngx_posted_events;
-
- ngx_post_event(ev, queue);
-
- continue;
- }
-
- ev->handler(ev);
- }
-
- return NGX_OK;
-}
-
-
-static ngx_inline void
-ngx_kqueue_dump_event(ngx_log_t *log, struct kevent *kev)
-{
- if (kev->ident > 0x8000000 && kev->ident != (unsigned) -1) {
- ngx_log_debug6(NGX_LOG_DEBUG_EVENT, log, 0,
- "kevent: %p: ft:%d fl:%04Xd ff:%08Xd d:%d ud:%p",
- (void *) kev->ident, kev->filter,
- kev->flags, kev->fflags,
- (int) kev->data, kev->udata);
-
- } else {
- ngx_log_debug6(NGX_LOG_DEBUG_EVENT, log, 0,
- "kevent: %d: ft:%d fl:%04Xd ff:%08Xd d:%d ud:%p",
- (int) kev->ident, kev->filter,
- kev->flags, kev->fflags,
- (int) kev->data, kev->udata);
- }
-}
-
-
-static void *
-ngx_kqueue_create_conf(ngx_cycle_t *cycle)
-{
- ngx_kqueue_conf_t *kcf;
-
- kcf = ngx_palloc(cycle->pool, sizeof(ngx_kqueue_conf_t));
- if (kcf == NULL) {
- return NULL;
- }
-
- kcf->changes = NGX_CONF_UNSET;
- kcf->events = NGX_CONF_UNSET;
-
- return kcf;
-}
-
-
-static char *
-ngx_kqueue_init_conf(ngx_cycle_t *cycle, void *conf)
-{
- ngx_kqueue_conf_t *kcf = conf;
-
- ngx_conf_init_uint_value(kcf->changes, 512);
- ngx_conf_init_uint_value(kcf->events, 512);
-
- return NGX_CONF_OK;
-}