ftdm_stream_handle_write_function_t  226 src/include/private/ftdm_core.h 	ftdm_stream_handle_write_function_t write_function;
ftdm_stream_handle_write_function_t  265 src/include/private/ftdm_types.h typedef ftdm_status_t (*ftdm_stream_handle_write_function_t) (ftdm_stream_handle_t *handle, const char *fmt, ...);