blob: f4a1c4b2b9733b47c749f6aab0c4ce2d506b841e [file] [log] [blame]
/*
* Copyright (C) Igor Sysoev
* Copyright (C) Nginx, Inc.
*/
#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;
}
/* SO_UPDATE_ACCEPT_CONTEXT is required for shutdown() to work */
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: close socket */
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: close socket */
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: close socket */
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: look up reused sockets */
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);
}