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#include <nginx.h>
#include <ngx_config.h>
#include <ngx_string.h>
#include <ngx_errno.h>
#include <ngx_time.h>
#include <ngx_log.h>
#include <ngx_alloc.h>
#include <ngx_array.h>
#include <ngx_socket.h>
#include <ngx_server.h>
#include <ngx_connection.h>
#include <ngx_listen.h>
/* STUB */
#include <ngx_http.h>
/* */
static void ngx_open_listening_sockets(ngx_log_t *log);
/* STUB */
int ngx_max_conn = 512;
ngx_server_t ngx_server;
/* */
ngx_log_t ngx_log;
ngx_pool_t *ngx_pool;
ngx_array_t *ngx_listening_sockets;
int main(int argc, char *const *argv)
{
/* STUB */
ngx_log.log_level = NGX_LOG_DEBUG;
ngx_pool = ngx_create_pool(16 * 1024, &ngx_log);
/* */
ngx_init_sockets(&ngx_log);
/* TODO: read config */
ngx_test_null(ngx_listening_sockets,
ngx_create_array(ngx_pool, 10, sizeof(ngx_listen_t)), 1);
/* STUB */
/* TODO: init chain of global modules (like ngx_http.c),
they would init its modules and ngx_listening_sockets */
ngx_http_init(ngx_pool, &ngx_log);
ngx_open_listening_sockets(&ngx_log);
/* TODO: daemon */
/* TODO: fork */
ngx_pre_thread(ngx_listening_sockets, ngx_pool, &ngx_log);
/* TODO: threads */
/* STUB */
ngx_worker(&ngx_log);
return 0;
}
static void ngx_open_listening_sockets(ngx_log_t *log)
{
int times, failed, reuseaddr, i;
ngx_err_t err;
ngx_socket_t s;
ngx_listen_t *ls;
reuseaddr = 1;
for (times = 10; times; times--) {
failed = 0;
/* for each listening socket */
ls = (ngx_listen_t *) ngx_listening_sockets->elts;
for (i = 0; i < ngx_listening_sockets->nelts; i++) {
if (ls[i].done)
continue;
if (ls[i].inherited) {
/* TODO: close on exit */
/* TODO: nonblocking */
/* TODO: deferred accept */
ls[i].done = 1;
continue;
}
s = ngx_socket(ls[i].family, ls[i].type, ls[i].protocol,
ls[i].flags);
if (s == -1) {
ngx_log_error(NGX_LOG_EMERG, log, ngx_socket_errno,
ngx_socket_n " %s falied", ls[i].addr_text);
exit(1);
}
if (setsockopt(s, SOL_SOCKET, SO_REUSEADDR,
(const void *) &reuseaddr, sizeof(int)) == -1) {
ngx_log_error(NGX_LOG_EMERG, log, ngx_socket_errno,
"setsockopt(SO_REUSEADDR) %s failed",
ls[i].addr_text);
exit(1);
}
/* TODO: close on exit */
if (ls[i].nonblocking) {
if (ngx_nonblocking(s) == -1) {
ngx_log_error(NGX_LOG_EMERG, log, ngx_socket_errno,
ngx_nonblocking_n " %s failed",
ls[i].addr_text);
exit(1);
}
}
if (bind(s, ls[i].sockaddr, ls[i].socklen) == -1) {
err = ngx_socket_errno;
ngx_log_error(NGX_LOG_EMERG, log, err,
"bind() to %s failed", ls[i].addr_text);
if (err != NGX_EADDRINUSE)
exit(1);
if (ngx_close_socket(s) == -1)
ngx_log_error(NGX_LOG_EMERG, log, ngx_socket_errno,
ngx_close_socket_n " %s failed",
ls[i].addr_text);
failed = 1;
continue;
}
if (listen(s, ls[i].backlog) == -1) {
ngx_log_error(NGX_LOG_EMERG, log, ngx_socket_errno,
"listen() to %s failed", ls[i].addr_text);
exit(1);
}
/* TODO: deferred accept */
ls[i].fd = s;
ls[i].done = 1;
}
if (!failed)
break;
ngx_log_error(NGX_LOG_NOTICE, log, 0,
"try again to bind() after 500ms");
ngx_msleep(500);
}
if (failed) {
ngx_log_error(NGX_LOG_EMERG, log, 0, "can not bind(), exiting");
exit(1);
}
}
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