2
A client sends requests to two different services. Cancel them if a reply is not received from
both within a timeout.
active
class Service1 {
public: int Operation1();
};
public: int Operation1();
};
active
class Service2 {
public: int Operation2();
};
public: int Operation2();
};
void Process( active Service1& s1, active Service2& s2, int ms ) {
future<int> result1 = s1.Operation1();
future<int> result2 = s2.Operation2();
future<int> result1 = s1.Operation1();
future<int> result2 = s2.Operation2();
wait( (result1
&& result2) || timeout(ms) );
if( result1 && result2 ) {
… // use result1 and result2
else {
result1.Cancel(); // cancel both
result2.Cancel();
}
}
if( result1 && result2 ) {
… // use result1 and result2
else {
result1.Cancel(); // cancel both
result2.Cancel();
}
}
Example:
Multiple Service Requests