#include #include #include #include #include #include #include #include #include #include #include #include #include #include /* STUB */ #include /* */ static void ngx_set_signals(ngx_log_t *log); static void ngx_open_listening_sockets(ngx_log_t *log); /* STUB */ int ngx_max_conn = 512; u_int ngx_sendfile_flags; ngx_server_t ngx_server; /* */ ngx_log_t ngx_log; ngx_pool_t *ngx_pool; int ngx_max_module; int ngx_connection_counter; ngx_array_t ngx_listening_sockets; int main(int argc, char *const *argv) { int i; ngx_str_t conf_file; ngx_conf_t conf; /* STUB */ ngx_log.log_level = NGX_LOG_DEBUG; ngx_pool = ngx_create_pool(16 * 1024, &ngx_log); /* */ #if (WIN32) if (ngx_init_sockets(&ngx_log) == NGX_ERROR) { exit(1); } #else ngx_set_signals(&ngx_log); #endif ngx_init_array(ngx_listening_sockets, ngx_pool, 10, sizeof(ngx_listen_t), 1); ngx_max_module = 0; for (i = 0; ngx_modules[i]; i++) { ngx_modules[i]->index = ngx_max_module++; } ngx_memzero(&conf, sizeof(ngx_conf_t)); ngx_test_null(conf.args, ngx_create_array(ngx_pool, 10, sizeof(ngx_str_t)), 1); conf.pool = ngx_pool; conf.log = &ngx_log; conf.type = NGX_CORE_MODULE_TYPE; conf_file.len = sizeof("nginx.conf") - 1; conf_file.data = "nginx.conf"; if (ngx_conf_parse(&conf, &conf_file) != NGX_CONF_OK) { return 1; } for (i = 0; ngx_modules[i]; i++) { if (ngx_modules[i]->init_module) { if (ngx_modules[i]->init_module(ngx_pool) == NGX_ERROR) { return 1; } } } #if 0 /* 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); #endif 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; } #if !(WIN32) static void ngx_set_signals(ngx_log_t *log) { struct sigaction sa; ngx_memzero(&sa, sizeof(struct sigaction)); sa.sa_handler = SIG_IGN; sigemptyset(&sa.sa_mask); if (sigaction(SIGPIPE, &sa, NULL) == -1) { ngx_log_error(NGX_LOG_EMERG, log, ngx_errno, "sigaction(SIGPIPE, SIG_IGN) failed"); exit(1); } } #endif 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].bound) continue; if (ls[i].inherited) { /* TODO: close on exit */ /* TODO: nonblocking */ /* TODO: deferred accept */ ls[i].bound = 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.data); 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.data); 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.data); 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.data); 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.data); 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.data); exit(1); } /* TODO: deferred accept */ ls[i].fd = s; ls[i].bound = 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); } }