From bf8c01bfcd015d43cfbcb893e48c6a83a95c91ec Mon Sep 17 00:00:00 2001 From: Ben Magistro Date: Sun, 17 Apr 2022 09:45:02 -0400 Subject: Drop nginx Nginx is not part of the core library being developed and needs to be moved to its own repository to allow it to be more easily maintained. Signed-off-by: Ben Magistro Change-Id: I5639e84ba0564ccd49ffcffa7ec9fcd57827bd6d --- app/nginx/src/event/modules/ngx_devpoll_module.c | 560 ----------------------- 1 file changed, 560 deletions(-) delete mode 100644 app/nginx/src/event/modules/ngx_devpoll_module.c (limited to 'app/nginx/src/event/modules/ngx_devpoll_module.c') diff --git a/app/nginx/src/event/modules/ngx_devpoll_module.c b/app/nginx/src/event/modules/ngx_devpoll_module.c deleted file mode 100644 index ee9f854..0000000 --- a/app/nginx/src/event/modules/ngx_devpoll_module.c +++ /dev/null @@ -1,560 +0,0 @@ - -/* - * Copyright (C) Igor Sysoev - * Copyright (C) Nginx, Inc. - */ - - -#include -#include -#include - - -#if (NGX_TEST_BUILD_DEVPOLL) - -/* Solaris declarations */ - -#ifndef POLLREMOVE -#define POLLREMOVE 0x0800 -#endif -#define DP_POLL 0xD001 -#define DP_ISPOLLED 0xD002 - -struct dvpoll { - struct pollfd *dp_fds; - int dp_nfds; - int dp_timeout; -}; - -#endif - - -typedef struct { - ngx_uint_t changes; - ngx_uint_t events; -} ngx_devpoll_conf_t; - - -static ngx_int_t ngx_devpoll_init(ngx_cycle_t *cycle, ngx_msec_t timer); -static void ngx_devpoll_done(ngx_cycle_t *cycle); -static ngx_int_t ngx_devpoll_add_event(ngx_event_t *ev, ngx_int_t event, - ngx_uint_t flags); -static ngx_int_t ngx_devpoll_del_event(ngx_event_t *ev, ngx_int_t event, - ngx_uint_t flags); -static ngx_int_t ngx_devpoll_set_event(ngx_event_t *ev, ngx_int_t event, - ngx_uint_t flags); -static ngx_int_t ngx_devpoll_process_events(ngx_cycle_t *cycle, - ngx_msec_t timer, ngx_uint_t flags); - -static void *ngx_devpoll_create_conf(ngx_cycle_t *cycle); -static char *ngx_devpoll_init_conf(ngx_cycle_t *cycle, void *conf); - -static int dp = -1; -static struct pollfd *change_list, *event_list; -static ngx_uint_t nchanges, max_changes, nevents; - -static ngx_event_t **change_index; - - -static ngx_str_t devpoll_name = ngx_string("/dev/poll"); - -static ngx_command_t ngx_devpoll_commands[] = { - - { ngx_string("devpoll_changes"), - NGX_EVENT_CONF|NGX_CONF_TAKE1, - ngx_conf_set_num_slot, - 0, - offsetof(ngx_devpoll_conf_t, changes), - NULL }, - - { ngx_string("devpoll_events"), - NGX_EVENT_CONF|NGX_CONF_TAKE1, - ngx_conf_set_num_slot, - 0, - offsetof(ngx_devpoll_conf_t, events), - NULL }, - - ngx_null_command -}; - - -static ngx_event_module_t ngx_devpoll_module_ctx = { - &devpoll_name, - ngx_devpoll_create_conf, /* create configuration */ - ngx_devpoll_init_conf, /* init configuration */ - - { - ngx_devpoll_add_event, /* add an event */ - ngx_devpoll_del_event, /* delete an event */ - ngx_devpoll_add_event, /* enable an event */ - ngx_devpoll_del_event, /* disable an event */ - NULL, /* add an connection */ - NULL, /* delete an connection */ - NULL, /* trigger a notify */ - ngx_devpoll_process_events, /* process the events */ - ngx_devpoll_init, /* init the events */ - ngx_devpoll_done, /* done the events */ - } - -}; - -ngx_module_t ngx_devpoll_module = { - NGX_MODULE_V1, - &ngx_devpoll_module_ctx, /* module context */ - ngx_devpoll_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_devpoll_init(ngx_cycle_t *cycle, ngx_msec_t timer) -{ - size_t n; - ngx_devpoll_conf_t *dpcf; - - dpcf = ngx_event_get_conf(cycle->conf_ctx, ngx_devpoll_module); - - if (dp == -1) { - dp = open("/dev/poll", O_RDWR); - - if (dp == -1) { - ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno, - "open(/dev/poll) failed"); - return NGX_ERROR; - } - } - - if (max_changes < dpcf->changes) { - if (nchanges) { - n = nchanges * sizeof(struct pollfd); - if (write(dp, change_list, n) != (ssize_t) n) { - ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, - "write(/dev/poll) failed"); - return NGX_ERROR; - } - - nchanges = 0; - } - - if (change_list) { - ngx_free(change_list); - } - - change_list = ngx_alloc(sizeof(struct pollfd) * dpcf->changes, - cycle->log); - if (change_list == NULL) { - return NGX_ERROR; - } - - if (change_index) { - ngx_free(change_index); - } - - change_index = ngx_alloc(sizeof(ngx_event_t *) * dpcf->changes, - cycle->log); - if (change_index == NULL) { - return NGX_ERROR; - } - } - - max_changes = dpcf->changes; - - if (nevents < dpcf->events) { - if (event_list) { - ngx_free(event_list); - } - - event_list = ngx_alloc(sizeof(struct pollfd) * dpcf->events, - cycle->log); - if (event_list == NULL) { - return NGX_ERROR; - } - } - - nevents = dpcf->events; - - ngx_io = ngx_os_io; - - ngx_event_actions = ngx_devpoll_module_ctx.actions; - - ngx_event_flags = NGX_USE_LEVEL_EVENT|NGX_USE_FD_EVENT; - - return NGX_OK; -} - - -static void -ngx_devpoll_done(ngx_cycle_t *cycle) -{ - if (close(dp) == -1) { - ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, - "close(/dev/poll) failed"); - } - - dp = -1; - - ngx_free(change_list); - ngx_free(event_list); - ngx_free(change_index); - - change_list = NULL; - event_list = NULL; - change_index = NULL; - max_changes = 0; - nchanges = 0; - nevents = 0; -} - - -static ngx_int_t -ngx_devpoll_add_event(ngx_event_t *ev, ngx_int_t event, ngx_uint_t flags) -{ -#if (NGX_DEBUG) - ngx_connection_t *c; -#endif - -#if (NGX_READ_EVENT != POLLIN) - event = (event == NGX_READ_EVENT) ? POLLIN : POLLOUT; -#endif - -#if (NGX_DEBUG) - c = ev->data; - ngx_log_debug2(NGX_LOG_DEBUG_EVENT, ev->log, 0, - "devpoll add event: fd:%d ev:%04Xi", c->fd, event); -#endif - - ev->active = 1; - - return ngx_devpoll_set_event(ev, event, 0); -} - - -static ngx_int_t -ngx_devpoll_del_event(ngx_event_t *ev, ngx_int_t event, ngx_uint_t flags) -{ - ngx_event_t *e; - ngx_connection_t *c; - - c = ev->data; - -#if (NGX_READ_EVENT != POLLIN) - event = (event == NGX_READ_EVENT) ? POLLIN : POLLOUT; -#endif - - ngx_log_debug2(NGX_LOG_DEBUG_EVENT, ev->log, 0, - "devpoll del event: fd:%d ev:%04Xi", c->fd, event); - - if (ngx_devpoll_set_event(ev, POLLREMOVE, flags) == NGX_ERROR) { - return NGX_ERROR; - } - - ev->active = 0; - - if (flags & NGX_CLOSE_EVENT) { - e = (event == POLLIN) ? c->write : c->read; - - if (e) { - e->active = 0; - } - - return NGX_OK; - } - - /* restore the pair event if it exists */ - - if (event == POLLIN) { - e = c->write; - event = POLLOUT; - - } else { - e = c->read; - event = POLLIN; - } - - if (e && e->active) { - return ngx_devpoll_set_event(e, event, 0); - } - - return NGX_OK; -} - - -static ngx_int_t -ngx_devpoll_set_event(ngx_event_t *ev, ngx_int_t event, ngx_uint_t flags) -{ - size_t n; - ngx_connection_t *c; - - c = ev->data; - - ngx_log_debug3(NGX_LOG_DEBUG_EVENT, ev->log, 0, - "devpoll fd:%d ev:%04Xi fl:%04Xi", c->fd, event, flags); - - if (nchanges >= max_changes) { - ngx_log_error(NGX_LOG_WARN, ev->log, 0, - "/dev/pool change list is filled up"); - - n = nchanges * sizeof(struct pollfd); - if (write(dp, change_list, n) != (ssize_t) n) { - ngx_log_error(NGX_LOG_ALERT, ev->log, ngx_errno, - "write(/dev/poll) failed"); - return NGX_ERROR; - } - - nchanges = 0; - } - - change_list[nchanges].fd = c->fd; - change_list[nchanges].events = (short) event; - change_list[nchanges].revents = 0; - - change_index[nchanges] = ev; - ev->index = nchanges; - - nchanges++; - - if (flags & NGX_CLOSE_EVENT) { - n = nchanges * sizeof(struct pollfd); - if (write(dp, change_list, n) != (ssize_t) n) { - ngx_log_error(NGX_LOG_ALERT, ev->log, ngx_errno, - "write(/dev/poll) failed"); - return NGX_ERROR; - } - - nchanges = 0; - } - - return NGX_OK; -} - - -static ngx_int_t -ngx_devpoll_process_events(ngx_cycle_t *cycle, ngx_msec_t timer, - ngx_uint_t flags) -{ - int events, revents, rc; - size_t n; - ngx_fd_t fd; - ngx_err_t err; - ngx_int_t i; - ngx_uint_t level, instance; - ngx_event_t *rev, *wev; - ngx_queue_t *queue; - ngx_connection_t *c; - struct pollfd pfd; - struct dvpoll dvp; - - /* NGX_TIMER_INFINITE == INFTIM */ - - ngx_log_debug1(NGX_LOG_DEBUG_EVENT, cycle->log, 0, - "devpoll timer: %M", timer); - - if (nchanges) { - n = nchanges * sizeof(struct pollfd); - if (write(dp, change_list, n) != (ssize_t) n) { - ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, - "write(/dev/poll) failed"); - return NGX_ERROR; - } - - nchanges = 0; - } - - dvp.dp_fds = event_list; - dvp.dp_nfds = (int) nevents; - dvp.dp_timeout = timer; - events = ioctl(dp, DP_POLL, &dvp); - - err = (events == -1) ? ngx_errno : 0; - - if (flags & NGX_UPDATE_TIME || ngx_event_timer_alarm) { - ngx_time_update(); - } - - 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, "ioctl(DP_POLL) failed"); - return NGX_ERROR; - } - - if (events == 0) { - if (timer != NGX_TIMER_INFINITE) { - return NGX_OK; - } - - ngx_log_error(NGX_LOG_ALERT, cycle->log, 0, - "ioctl(DP_POLL) returned no events without timeout"); - return NGX_ERROR; - } - - for (i = 0; i < events; i++) { - - fd = event_list[i].fd; - revents = event_list[i].revents; - - c = ngx_cycle->files[fd]; - - if (c == NULL || c->fd == -1) { - - pfd.fd = fd; - pfd.events = 0; - pfd.revents = 0; - - rc = ioctl(dp, DP_ISPOLLED, &pfd); - - switch (rc) { - - case -1: - ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, - "ioctl(DP_ISPOLLED) failed for socket %d, event %04Xd", - fd, revents); - break; - - case 0: - ngx_log_error(NGX_LOG_ALERT, cycle->log, 0, - "phantom event %04Xd for closed and removed socket %d", - revents, fd); - break; - - default: - ngx_log_error(NGX_LOG_ALERT, cycle->log, 0, - "unexpected event %04Xd for closed and removed socket %d, " - "ioctl(DP_ISPOLLED) returned rc:%d, fd:%d, event %04Xd", - revents, fd, rc, pfd.fd, pfd.revents); - - pfd.fd = fd; - pfd.events = POLLREMOVE; - pfd.revents = 0; - - if (write(dp, &pfd, sizeof(struct pollfd)) - != (ssize_t) sizeof(struct pollfd)) - { - ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, - "write(/dev/poll) for %d failed", fd); - } - - if (close(fd) == -1) { - ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, - "close(%d) failed", fd); - } - - break; - } - - continue; - } - - ngx_log_debug3(NGX_LOG_DEBUG_EVENT, cycle->log, 0, - "devpoll: fd:%d, ev:%04Xd, rev:%04Xd", - fd, event_list[i].events, revents); - - if (revents & (POLLERR|POLLHUP|POLLNVAL)) { - ngx_log_debug3(NGX_LOG_DEBUG_EVENT, cycle->log, 0, - "ioctl(DP_POLL) error fd:%d ev:%04Xd rev:%04Xd", - fd, event_list[i].events, revents); - } - - if (revents & ~(POLLIN|POLLOUT|POLLERR|POLLHUP|POLLNVAL)) { - ngx_log_error(NGX_LOG_ALERT, cycle->log, 0, - "strange ioctl(DP_POLL) events " - "fd:%d ev:%04Xd rev:%04Xd", - fd, event_list[i].events, 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; - } - - rev = c->read; - - if ((revents & POLLIN) && rev->active) { - rev->ready = 1; - - if (flags & NGX_POST_EVENTS) { - queue = rev->accept ? &ngx_posted_accept_events - : &ngx_posted_events; - - ngx_post_event(rev, queue); - - } else { - instance = rev->instance; - - rev->handler(rev); - - if (c->fd == -1 || rev->instance != instance) { - continue; - } - } - } - - wev = c->write; - - if ((revents & POLLOUT) && wev->active) { - wev->ready = 1; - - if (flags & NGX_POST_EVENTS) { - ngx_post_event(wev, &ngx_posted_events); - - } else { - wev->handler(wev); - } - } - } - - return NGX_OK; -} - - -static void * -ngx_devpoll_create_conf(ngx_cycle_t *cycle) -{ - ngx_devpoll_conf_t *dpcf; - - dpcf = ngx_palloc(cycle->pool, sizeof(ngx_devpoll_conf_t)); - if (dpcf == NULL) { - return NULL; - } - - dpcf->changes = NGX_CONF_UNSET; - dpcf->events = NGX_CONF_UNSET; - - return dpcf; -} - - -static char * -ngx_devpoll_init_conf(ngx_cycle_t *cycle, void *conf) -{ - ngx_devpoll_conf_t *dpcf = conf; - - ngx_conf_init_uint_value(dpcf->changes, 32); - ngx_conf_init_uint_value(dpcf->events, 32); - - return NGX_CONF_OK; -} -- cgit 1.2.3-korg