PROC_LOGGER
ps->ps_what[PROC_LOGGER] = CONFIG_SERVERS;
proc_compose(env->sc_ps, PROC_LOGGER, IMSG_CTL_REOPEN, NULL, 0);
{ "logger", PROC_LOGGER, parent_dispatch_logger, logger }
proc_compose_imsg(httpd_env->sc_ps, PROC_LOGGER, -1,
if (proc_composev(httpd_env->sc_ps, PROC_LOGGER, cmd, iov, 2) != 0) {
{ "logger", PROC_LOGGER, server_dispatch_logger }