ngx_http_log_open_file_cache  120 http/modules/ngx_http_log_module.c static char *ngx_http_log_open_file_cache(ngx_conf_t *cf, ngx_command_t *cmd,
ngx_http_log_open_file_cache  144 http/modules/ngx_http_log_module.c       ngx_http_log_open_file_cache,