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src/event/ngx_event_acceptex.c - nginx source code
Functions defined
Source code
- #include <ngx_config.h>
- #include <ngx_core.h>
- #include <ngx_event.h>
- static void ngx_close_posted_connection(ngx_connection_t *c);
- void
- ngx_event_acceptex(ngx_event_t *rev)
- {
- ngx_listening_t *ls;
- ngx_connection_t *c;
- c = rev->data;
- ls = c->listening;
- c->log->handler = ngx_accept_log_error;
- ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0, "AcceptEx: %d", c->fd);
- if (rev->ovlp.error) {
- ngx_log_error(NGX_LOG_CRIT, c->log, rev->ovlp.error,
- "AcceptEx() %V failed", &ls->addr_text);
- return;
- }
-
- if (setsockopt(c->fd, SOL_SOCKET, SO_UPDATE_ACCEPT_CONTEXT,
- (char *) &ls->fd, sizeof(ngx_socket_t))
- == -1)
- {
- ngx_log_error(NGX_LOG_CRIT, c->log, ngx_socket_errno,
- "setsockopt(SO_UPDATE_ACCEPT_CONTEXT) failed for %V",
- &c->addr_text);
- TODO
- return;
- }
- ngx_getacceptexsockaddrs(c->buffer->pos,
- ls->post_accept_buffer_size,
- ls->socklen + 16,
- ls->socklen + 16,
- &c->local_sockaddr, &c->local_socklen,
- &c->sockaddr, &c->socklen);
- if (ls->post_accept_buffer_size) {
- c->buffer->last += rev->available;
- c->buffer->end = c->buffer->start + ls->post_accept_buffer_size;
- } else {
- c->buffer = NULL;
- }
- if (ls->addr_ntop) {
- c->addr_text.data = ngx_pnalloc(c->pool, ls->addr_text_max_len);
- if (c->addr_text.data == NULL) {
- TODO
- return;
- }
- c->addr_text.len = ngx_sock_ntop(c->sockaddr, c->socklen,
- c->addr_text.data,
- ls->addr_text_max_len, 0);
- if (c->addr_text.len == 0) {
- TODO
- return;
- }
- }
- ngx_event_post_acceptex(ls, 1);
- c->number = ngx_atomic_fetch_add(ngx_connection_counter, 1);
- c->start_time = ngx_current_msec;
- ls->handler(c);
- return;
- }
- ngx_int_t
- ngx_event_post_acceptex(ngx_listening_t *ls, ngx_uint_t n)
- {
- u_long rcvd;
- ngx_err_t err;
- ngx_log_t *log;
- ngx_uint_t i;
- ngx_event_t *rev, *wev;
- ngx_socket_t s;
- ngx_connection_t *c;
- for (i = 0; i < n; i++) {
- TODO
- s = ngx_socket(ls->sockaddr->sa_family, ls->type, 0);
- ngx_log_debug1(NGX_LOG_DEBUG_EVENT, &ls->log, 0,
- ngx_socket_n " s:%d", s);
- if (s == (ngx_socket_t) -1) {
- ngx_log_error(NGX_LOG_ALERT, &ls->log, ngx_socket_errno,
- ngx_socket_n " failed");
- return NGX_ERROR;
- }
- c = ngx_get_connection(s, &ls->log);
- if (c == NULL) {
- return NGX_ERROR;
- }
- c->pool = ngx_create_pool(ls->pool_size, &ls->log);
- if (c->pool == NULL) {
- ngx_close_posted_connection(c);
- return NGX_ERROR;
- }
- log = ngx_palloc(c->pool, sizeof(ngx_log_t));
- if (log == NULL) {
- ngx_close_posted_connection(c);
- return NGX_ERROR;
- }
- c->buffer = ngx_create_temp_buf(c->pool, ls->post_accept_buffer_size
- + 2 * (ls->socklen + 16));
- if (c->buffer == NULL) {
- ngx_close_posted_connection(c);
- return NGX_ERROR;
- }
- c->local_sockaddr = ngx_palloc(c->pool, ls->socklen);
- if (c->local_sockaddr == NULL) {
- ngx_close_posted_connection(c);
- return NGX_ERROR;
- }
- c->sockaddr = ngx_palloc(c->pool, ls->socklen);
- if (c->sockaddr == NULL) {
- ngx_close_posted_connection(c);
- return NGX_ERROR;
- }
- *log = ls->log;
- c->log = log;
- c->recv = ngx_recv;
- c->send = ngx_send;
- c->recv_chain = ngx_recv_chain;
- c->send_chain = ngx_send_chain;
- c->listening = ls;
- rev = c->read;
- wev = c->write;
- rev->ovlp.event = rev;
- wev->ovlp.event = wev;
- rev->handler = ngx_event_acceptex;
- rev->ready = 1;
- wev->ready = 1;
- rev->log = c->log;
- wev->log = c->log;
- if (ngx_add_event(rev, 0, NGX_IOCP_IO) == NGX_ERROR) {
- ngx_close_posted_connection(c);
- return NGX_ERROR;
- }
- if (ngx_acceptex(ls->fd, s, c->buffer->pos, ls->post_accept_buffer_size,
- ls->socklen + 16, ls->socklen + 16,
- &rcvd, (LPOVERLAPPED) &rev->ovlp)
- == 0)
- {
- err = ngx_socket_errno;
- if (err != WSA_IO_PENDING) {
- ngx_log_error(NGX_LOG_ALERT, &ls->log, err,
- "AcceptEx() %V failed", &ls->addr_text);
- ngx_close_posted_connection(c);
- return NGX_ERROR;
- }
- }
- }
- return NGX_OK;
- }
- static void
- ngx_close_posted_connection(ngx_connection_t *c)
- {
- ngx_socket_t fd;
- ngx_free_connection(c);
- fd = c->fd;
- c->fd = (ngx_socket_t) -1;
- if (ngx_close_socket(fd) == -1) {
- ngx_log_error(NGX_LOG_ALERT, c->log, ngx_socket_errno,
- ngx_close_socket_n " failed");
- }
- if (c->pool) {
- ngx_destroy_pool(c->pool);
- }
- }
- u_char *
- ngx_acceptex_log_error(ngx_log_t *log, u_char *buf, size_t len)
- {
- return ngx_snprintf(buf, len, " while posting AcceptEx() on %V", log->data);
- }
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