void uwsgi_reload(char **argv) {
int i;
int waitpid_status;
// call a series of waitpid to ensure all processes (gateways, mules and daemons) are dead
for (i = 0; i < (ushared->gateways_cnt + uwsgi.daemons_cnt + uwsgi.mules_cnt); i++) {
waitpid(WAIT_ANY, &waitpid_status, WNOHANG);
}
// call master cleanup hooks
uwsgi_master_cleanup_hooks();
// call atexit user exec
uwsgi_exec_atexit();
if (uwsgi.exit_on_reload) {
uwsgi_log("uWSGI: GAME OVER (insert coin)\n");
exit(0);
}
uwsgi_log("binary reloading uWSGI...\n");
uwsgi_log("chdir() to %s\n", uwsgi.cwd);
if (chdir(uwsgi.cwd)) {
uwsgi_error("chdir()");
}
/* check fd table (a module can obviosly open some fd on initialization...) */
uwsgi_log("closing all non-uwsgi socket fds > 2 (max_fd = %d)...\n", (int) uwsgi.max_fd);
for (i = 3; i < (int) uwsgi.max_fd; i++) {
if (uwsgi_fd_is_safe(i)) continue;
int found = 0;
struct uwsgi_socket *uwsgi_sock = uwsgi.sockets;
while (uwsgi_sock) {
if (i == uwsgi_sock->fd) {
uwsgi_log("found fd %d mapped to socket %d (%s)\n", i, uwsgi_get_socket_num(uwsgi_sock), uwsgi_sock->name);
found = 1;
break;
}
uwsgi_sock = uwsgi_sock->next;
}
uwsgi_sock = uwsgi.shared_sockets;
while (uwsgi_sock) {
if (i == uwsgi_sock->fd) {
uwsgi_log("found fd %d mapped to shared socket %d (%s)\n", i, uwsgi_get_shared_socket_num(uwsgi_sock), uwsgi_sock->name);
found = 1;
break;
}
uwsgi_sock = uwsgi_sock->next;
}
if (found) continue;
if (uwsgi.has_emperor) {
if (i == uwsgi.emperor_fd) {
continue;
}
if (i == uwsgi.emperor_fd_config) {
continue;
}
}
if (uwsgi.alarm_thread) {
if (i == uwsgi.alarm_thread->queue) continue;
if (i == uwsgi.alarm_thread->pipe[0]) continue;
if (i == uwsgi.alarm_thread->pipe[1]) continue;
}
if (uwsgi.log_master) {
if (uwsgi.original_log_fd > -1) {
if (i == uwsgi.original_log_fd) {
continue;
}
}
if (uwsgi.shared->worker_log_pipe[0] > -1) {
if (i == uwsgi.shared->worker_log_pipe[0]) {
continue;
}
}
if (uwsgi.shared->worker_log_pipe[1] > -1) {
if (i == uwsgi.shared->worker_log_pipe[1]) {
continue;
}
}
}
#ifdef __APPLE__
fcntl(i, F_SETFD, FD_CLOEXEC);
#else
close(i);
#endif
}
#ifndef UWSGI_IPCSEM_ATEXIT
// free ipc semaphores if in use
if (uwsgi.lock_engine && !strcmp(uwsgi.lock_engine, "ipcsem")) {
uwsgi_ipcsem_clear();
}
#endif
uwsgi_log("running %s\n", uwsgi.binary_path);
uwsgi_flush_logs();
argv[0] = uwsgi.binary_path;
//strcpy (argv[0], uwsgi.binary_path);
if (uwsgi.log_master) {
if (uwsgi.original_log_fd > -1) {
dup2(uwsgi.original_log_fd, 1);
dup2(1, 2);
}
if (uwsgi.shared->worker_log_pipe[0] > -1) {
close(uwsgi.shared->worker_log_pipe[0]);
}
if (uwsgi.shared->worker_log_pipe[1] > -1) {
close(uwsgi.shared->worker_log_pipe[1]);
}
}
execvp(uwsgi.binary_path, argv);
uwsgi_error("execvp()");
// never here
exit(1);
}
void uwsgi_setup_shared_sockets() {
int i;
struct uwsgi_socket *shared_sock = uwsgi.shared_sockets;
while (shared_sock) {
if (!uwsgi.is_a_reload) {
char *tcp_port = strrchr(shared_sock->name, ':');
int current_defer_accept = uwsgi.no_defer_accept;
if (shared_sock->no_defer) {
uwsgi.no_defer_accept = 1;
}
if (tcp_port == NULL) {
shared_sock->fd = bind_to_unix(shared_sock->name, uwsgi.listen_queue, uwsgi.chmod_socket, uwsgi.abstract_socket);
shared_sock->family = AF_UNIX;
uwsgi_log("uwsgi shared socket %d bound to UNIX address %s fd %d\n", uwsgi_get_shared_socket_num(shared_sock), shared_sock->name, shared_sock->fd);
}
else {
#ifdef UWSGI_IPV6
if (shared_sock->name[0] == '[' && tcp_port[-1] == ']') {
shared_sock->fd = bind_to_tcp6(shared_sock->name, uwsgi.listen_queue, tcp_port);
shared_sock->family = AF_INET6;
// fix socket name
shared_sock->name = uwsgi_getsockname(shared_sock->fd);
uwsgi_log("uwsgi shared socket %d bound to TCP6 address %s fd %d\n", uwsgi_get_shared_socket_num(shared_sock), shared_sock->name, shared_sock->fd);
}
else {
#endif
shared_sock->fd = bind_to_tcp(shared_sock->name, uwsgi.listen_queue, tcp_port);
shared_sock->family = AF_INET;
// fix socket name
shared_sock->name = uwsgi_getsockname(shared_sock->fd);
uwsgi_log("uwsgi shared socket %d bound to TCP address %s fd %d\n", uwsgi_get_shared_socket_num(shared_sock), shared_sock->name, shared_sock->fd);
#ifdef UWSGI_IPV6
}
#endif
}
if (shared_sock->fd < 0) {
uwsgi_log("unable to create shared socket on: %s\n", shared_sock->name);
exit(1);
}
if (shared_sock->no_defer) {
uwsgi.no_defer_accept = current_defer_accept;
}
}
else {
for (i = 3; i < (int) uwsgi.max_fd; i++) {
char *sock = uwsgi_getsockname(i);
if (sock) {
if (!strcmp(sock, shared_sock->name)) {
if (strchr(sock, ':')) {
uwsgi_log("uwsgi shared socket %d inherited TCP address %s fd %d\n", uwsgi_get_shared_socket_num(shared_sock), sock, i);
shared_sock->family = AF_INET;
}
else {
uwsgi_log("uwsgi shared socket %d inherited UNIX address %s fd %d\n", uwsgi_get_shared_socket_num(shared_sock), sock, i);
shared_sock->family = AF_UNIX;
}
shared_sock->fd = i;
}
else {
free(sock);
}
}
}
}
shared_sock->bound = 1;
shared_sock = shared_sock->next;
}
struct uwsgi_socket *uwsgi_sock = uwsgi.sockets;
while (uwsgi_sock) {
if (uwsgi_sock->shared) {
shared_sock = uwsgi_get_shared_socket_by_num(uwsgi_sock->from_shared);
if (!shared_sock) {
uwsgi_log("unable to find shared socket %d\n", uwsgi_sock->from_shared);
exit(1);
}
uwsgi_sock->fd = shared_sock->fd;
uwsgi_sock->family = shared_sock->family;
uwsgi_sock->name = shared_sock->name;
uwsgi_log("uwsgi socket %d mapped to shared socket %d (%s) fd %d\n", uwsgi_get_socket_num(uwsgi_sock), uwsgi_get_shared_socket_num(shared_sock), shared_sock->name, uwsgi_sock->fd);
}
uwsgi_sock = uwsgi_sock->next;
}
}
