calc.thrift

 /* http://saravani.wordpress.com */
 enum BinaryOperation {
 ADDITION = 1,
 SUBTRACTION = 2,
 MULTIPLICATION = 3,
 DIVISION = 4,
 MODULUS = 5
 }
 /** Structs are the basic complex data structures. They are comprised of fields 
 * which each have an integer identifier, a type, a symbolic name, and an 
 * optional default value. */
 struct ArithmeticOperation {
 1:BinaryOperation op,
 2:double lh_term,
 3:double rh_term,
 }
 /* Structs can also be exceptions, if they are nasty. */
 exception ArithmeticException {
 1:string msg,
 2:optional double x,
 }
 service Calculator {
 /**
 * A method definition looks like C code. It has a return type, arguments,
 * and optionally a list of exceptions that it may throw. Note that argument
 * lists and exception lists are specified using the exact same syntax as
 * field lists in struct or exception definitions.
 */
 double calc(1:ArithmeticOperation op) throws (1:ArithmeticException ae),
 /**
 * This method has an oneway modifier. That means the client only makes
 * a request and does not listen for any response at all. Oneway methods
 * must be void.
 *
 * The server may execute async invocations of the same client in parallel/
 * out of order.
 */

 /**
 * oneway 表示client发出请求后不必等待恢复(非堵塞)直接进行下一步操作
 * oneway 方法的返回值必须是void
 */
 oneway void run_task()
 }
 /* http://saravani.wordpress.com */