void async_call()
{
RpcPromise p = new RpcPromise();
p.then(_ => {
prx.echo_async("this is a sync text",
delegate(string result, RpcAsyncContext ctx) {
Console.WriteLine("echo() result:" + result);
ctx.promise.data = result;
ctx.onNext();
//ctx.again();
}, _.promise);
}).then(_ => {
prx.timeout_async(1, delegate(RpcAsyncContext ctx) {
Console.WriteLine("timeout completed!");
ctx.onNext();
},_.promise);
});
RpcPromise pe = p.error(_ => {
Console.WriteLine("async call error:"+ _.exception.ToString());
_.onNext();
});
p.final(_ => {
Console.WriteLine(" commands be executed completed!");
});
p.end();
}
/**
* onNext()
* promise下一个处理
* 同一个promise中 step1 -> step2
* 下一个promise 跳转到上级 promise
*/
public void onNext(RpcAsyncContext ctx, RpcPromise from = null)
{
if (true)
{
if (from != null && from._lastPoint != null)
{
int index = _sucesslist.IndexOf(from._lastPoint);
_sucesslist.RemoveRange(0, index + 1);
}
if (_sucesslist.Count == 0)
{
onFinally(ctx);
return;
}
OnNext next = null;
next = _sucesslist[0];
_sucesslist.RemoveAt(0);
_currentNext = next;
if (next != null)
{
next(ctx);
}
}
}
public void join(RpcPromise promise)
{
promise._nextPromise = this; //
OnNext last = null;
if (_sucesslist.Count != 0)
{
last = _sucesslist[_sucesslist.Count - 1];
}
promise._lastPoint = last;
}
/**
* at here , new promise be created as Error processing fork.
* you can promise.wait util the error-routine return.
*/
public RpcPromise error(OnNext error)
{
RpcPromise promise = new RpcPromise();
if (true)
{
OnNext succ = null;
if (_sucesslist.Count != 0)
{
succ = _sucesslist[_sucesslist.Count - 1]; // select last OnNext
}
KeyValuePair <RpcPromise, OnNext> kv = new KeyValuePair <RpcPromise, OnNext>(promise, succ);
_errorlist.Add(kv);
promise._nextPromise = this;
promise.then(error);
}
return(promise);
}
public void onError(RpcAsyncContext ctx)
{
if (_errorlist.Count == 0)
{
onFinally(ctx);
return;
}
// pick out one fork-promise
KeyValuePair <RpcPromise, OnNext> kv = _errorlist[0];
OnNext succ = kv.Value;
RpcPromise next = kv.Key;
_errorlist.RemoveAt(0);
// scan list and remove all nodes which's depth of node is less than promise.
int index = _sucesslist.IndexOf(succ);
_sucesslist.RemoveRange(0, index + 1);
if (next != null)
{
ctx.promise = next;
next.onNext(ctx);
}
}
void test_promise()
{
RpcPromise p = new RpcPromise();
p.then(delegate(RpcAsyncContext ctx) {
ctx.promise.data = "abc";
Console.WriteLine("step 1.1");
ctx.promise.onNext(ctx);
}).then(delegate(RpcAsyncContext ctx) {
Console.WriteLine("step 1.2");
Console.WriteLine(ctx.promise.data);
//ctx.promise.onNext(ctx);
ctx.promise.onError(ctx);
});
RpcPromise p2 = p.error(delegate(RpcAsyncContext ctx) {
//p.onNext(ctx,ctx.promise);
Console.WriteLine("step 2.1");
ctx.promise.onError(ctx);
});
RpcPromise p3 = p2.error(delegate(RpcAsyncContext ctx) {
Console.WriteLine("step 3.1");
ctx.promise.onNext(ctx);
});
p3.then(delegate(RpcAsyncContext ctx) {
Console.WriteLine("step 2.2");
ctx.promise.onNext(ctx);
});
p.then(delegate(RpcAsyncContext ctx) {
Console.WriteLine("step 1.3");
ctx.promise.onNext(ctx);
}).final(delegate(RpcAsyncContext ctx) {
Console.WriteLine("final.");
Console.WriteLine(ctx.promise.data);
Console.ReadKey(true);
}).end();
}
public RpcAsyncContext( object cookie,RpcPromise promise) {
this.cookie = cookie;
this.promise = promise;
}
/**
* at here , new promise be created as Error processing fork.
* you can promise.wait util the error-routine return.
*/
public RpcPromise error(OnNext error )
{
RpcPromise promise = new RpcPromise();
if(true) {
OnNext succ = null;
if (_sucesslist.Count != 0) {
succ = _sucesslist[_sucesslist.Count - 1]; // select last OnNext
}
KeyValuePair<RpcPromise,OnNext> kv = new KeyValuePair<RpcPromise, OnNext>(promise,succ);
_errorlist.Add( kv );
promise._nextPromise = this;
promise.then(error);
}
return promise;
}
/**
* onNext()
* promise下一个处理
* 同一个promise中 step1 -> step2
* 下一个promise 跳转到上级 promise
*/
public void onNext(RpcAsyncContext ctx,RpcPromise from = null)
{
if (true) {
if (from != null && from._lastPoint != null)
{
int index = _sucesslist.IndexOf(from._lastPoint);
_sucesslist.RemoveRange(0,index+1);
}
if (_sucesslist.Count == 0) {
onFinally(ctx);
return;
}
OnNext next = null;
next = _sucesslist[0];
_sucesslist.RemoveAt(0);
_currentNext = next;
if ( next != null) {
next( ctx );
}
}
}
public void join(RpcPromise promise)
{
promise._nextPromise = this; //
OnNext last = null;
if (_sucesslist.Count != 0) {
last = _sucesslist[_sucesslist.Count - 1];
}
promise._lastPoint = last;
}
public RpcAsyncContext(object cookie, RpcPromise promise)
{
this.cookie = cookie;
this.promise = promise;
}