FD_ZERO            79 event/modules/ngx_select_module.c         FD_ZERO(&master_read_fd_set);
FD_ZERO            80 event/modules/ngx_select_module.c         FD_ZERO(&master_write_fd_set);
FD_ZERO            80 event/modules/ngx_win32_select_module.c         FD_ZERO(&master_read_fd_set);
FD_ZERO            81 event/modules/ngx_win32_select_module.c         FD_ZERO(&master_write_fd_set);