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removed the reference to the parent from the promise object this allows...
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@@ -1,333 +1,386
1 using System;
1 using System;
2 using Microsoft.VisualStudio.TestTools.UnitTesting;
2 using Microsoft.VisualStudio.TestTools.UnitTesting;
3 using System.Reflection;
3 using System.Reflection;
4 using System.Threading;
4 using System.Threading;
5 using Implab.Parallels;
5 using Implab.Parallels;
6
6
7 namespace Implab.Test {
7 namespace Implab.Test {
8 [TestClass]
8 [TestClass]
9 public class AsyncTests {
9 public class AsyncTests {
10 [TestMethod]
10 [TestMethod]
11 public void ResolveTest() {
11 public void ResolveTest() {
12 int res = -1;
12 int res = -1;
13 var p = new Promise<int>();
13 var p = new Promise<int>();
14 p.Then(x => res = x);
14 p.Then(x => res = x);
15 p.Resolve(100);
15 p.Resolve(100);
16
16
17 Assert.AreEqual(100, res);
17 Assert.AreEqual(100, res);
18 }
18 }
19
19
20 [TestMethod]
20 [TestMethod]
21 public void RejectTest() {
21 public void RejectTest() {
22 int res = -1;
22 int res = -1;
23 Exception err = null;
23 Exception err = null;
24
24
25 var p = new Promise<int>();
25 var p = new Promise<int>();
26 p.Then(x => res = x, e => err = e);
26 p.Then(x => res = x, e => err = e);
27 p.Reject(new ApplicationException("error"));
27 p.Reject(new ApplicationException("error"));
28
28
29 Assert.AreEqual(res, -1);
29 Assert.AreEqual(res, -1);
30 Assert.AreEqual(err.Message, "error");
30 Assert.AreEqual(err.Message, "error");
31
31
32 }
32 }
33
33
34 [TestMethod]
34 [TestMethod]
35 public void JoinSuccessTest() {
35 public void JoinSuccessTest() {
36 var p = new Promise<int>();
36 var p = new Promise<int>();
37 p.Resolve(100);
37 p.Resolve(100);
38 Assert.AreEqual(p.Join(), 100);
38 Assert.AreEqual(p.Join(), 100);
39 }
39 }
40
40
41 [TestMethod]
41 [TestMethod]
42 public void JoinFailTest() {
42 public void JoinFailTest() {
43 var p = new Promise<int>();
43 var p = new Promise<int>();
44 p.Reject(new ApplicationException("failed"));
44 p.Reject(new ApplicationException("failed"));
45
45
46 try {
46 try {
47 p.Join();
47 p.Join();
48 throw new ApplicationException("WRONG!");
48 throw new ApplicationException("WRONG!");
49 } catch (TargetInvocationException err) {
49 } catch (TargetInvocationException err) {
50 Assert.AreEqual(err.InnerException.Message, "failed");
50 Assert.AreEqual(err.InnerException.Message, "failed");
51 } catch {
51 } catch {
52 Assert.Fail("Got wrong excaption");
52 Assert.Fail("Got wrong excaption");
53 }
53 }
54 }
54 }
55
55
56 [TestMethod]
56 [TestMethod]
57 public void MapTest() {
57 public void MapTest() {
58 var p = new Promise<int>();
58 var p = new Promise<int>();
59
59
60 var p2 = p.Map(x => x.ToString());
60 var p2 = p.Map(x => x.ToString());
61 p.Resolve(100);
61 p.Resolve(100);
62
62
63 Assert.AreEqual(p2.Join(), "100");
63 Assert.AreEqual(p2.Join(), "100");
64 }
64 }
65
65
66 [TestMethod]
66 [TestMethod]
67 public void FixErrorTest() {
67 public void FixErrorTest() {
68 var p = new Promise<int>();
68 var p = new Promise<int>();
69
69
70 var p2 = p.Error(e => 101);
70 var p2 = p.Error(e => 101);
71
71
72 p.Reject(new Exception());
72 p.Reject(new Exception());
73
73
74 Assert.AreEqual(p2.Join(), 101);
74 Assert.AreEqual(p2.Join(), 101);
75 }
75 }
76
76
77 [TestMethod]
77 [TestMethod]
78 public void ChainTest() {
78 public void ChainTest() {
79 var p1 = new Promise<int>();
79 var p1 = new Promise<int>();
80
80
81 var p3 = p1.Chain(x => {
81 var p3 = p1.Chain(x => {
82 var p2 = new Promise<string>();
82 var p2 = new Promise<string>();
83 p2.Resolve(x.ToString());
83 p2.Resolve(x.ToString());
84 return p2;
84 return p2;
85 });
85 });
86
86
87 p1.Resolve(100);
87 p1.Resolve(100);
88
88
89 Assert.AreEqual(p3.Join(), "100");
89 Assert.AreEqual(p3.Join(), "100");
90 }
90 }
91
91
92 [TestMethod]
92 [TestMethod]
93 public void PoolTest() {
93 public void PoolTest() {
94 var pid = Thread.CurrentThread.ManagedThreadId;
94 var pid = Thread.CurrentThread.ManagedThreadId;
95 var p = AsyncPool.Invoke(() => Thread.CurrentThread.ManagedThreadId);
95 var p = AsyncPool.Invoke(() => Thread.CurrentThread.ManagedThreadId);
96
96
97 Assert.AreNotEqual(pid, p.Join());
97 Assert.AreNotEqual(pid, p.Join());
98 }
98 }
99
99
100 [TestMethod]
100 [TestMethod]
101 public void WorkerPoolSizeTest() {
101 public void WorkerPoolSizeTest() {
102 var pool = new WorkerPool(5, 10, 0);
102 var pool = new WorkerPool(5, 10, 0);
103
103
104 Assert.AreEqual(5, pool.PoolSize);
104 Assert.AreEqual(5, pool.PoolSize);
105
105
106 pool.Invoke(() => { Thread.Sleep(100000000); return 10; });
106 pool.Invoke(() => { Thread.Sleep(100000000); return 10; });
107 pool.Invoke(() => { Thread.Sleep(100000000); return 10; });
107 pool.Invoke(() => { Thread.Sleep(100000000); return 10; });
108 pool.Invoke(() => { Thread.Sleep(100000000); return 10; });
108 pool.Invoke(() => { Thread.Sleep(100000000); return 10; });
109
109
110 Assert.AreEqual(5, pool.PoolSize);
110 Assert.AreEqual(5, pool.PoolSize);
111
111
112 for (int i = 0; i < 100; i++)
112 for (int i = 0; i < 100; i++)
113 pool.Invoke(() => { Thread.Sleep(100000000); return 10; });
113 pool.Invoke(() => { Thread.Sleep(100000000); return 10; });
114 Thread.Sleep(200);
114 Thread.Sleep(200);
115 Assert.AreEqual(10, pool.PoolSize);
115 Assert.AreEqual(10, pool.PoolSize);
116
116
117 pool.Dispose();
117 pool.Dispose();
118 }
118 }
119
119
120 [TestMethod]
120 [TestMethod]
121 public void WorkerPoolCorrectTest() {
121 public void WorkerPoolCorrectTest() {
122 var pool = new WorkerPool(0,1000,100);
122 var pool = new WorkerPool(0,1000,100);
123
123
124 int iterations = 1000;
124 int iterations = 1000;
125 int pending = iterations;
125 int pending = iterations;
126 var stop = new ManualResetEvent(false);
126 var stop = new ManualResetEvent(false);
127
127
128 var count = 0;
128 var count = 0;
129 for (int i = 0; i < iterations; i++) {
129 for (int i = 0; i < iterations; i++) {
130 pool
130 pool
131 .Invoke(() => 1)
131 .Invoke(() => 1)
132 .Then(x => Interlocked.Add(ref count, x))
132 .Then(x => Interlocked.Add(ref count, x))
133 .Then(x => Math.Log10(x))
133 .Then(x => Math.Log10(x))
134 .Anyway(() => {
134 .Anyway(() => {
135 Interlocked.Decrement(ref pending);
135 Interlocked.Decrement(ref pending);
136 if (pending == 0)
136 if (pending == 0)
137 stop.Set();
137 stop.Set();
138 });
138 });
139 }
139 }
140
140
141 stop.WaitOne();
141 stop.WaitOne();
142
142
143 Assert.AreEqual(iterations, count);
143 Assert.AreEqual(iterations, count);
144 Console.WriteLine("Max threads: {0}", pool.MaxRunningThreads);
144 Console.WriteLine("Max threads: {0}", pool.MaxRunningThreads);
145 pool.Dispose();
145 pool.Dispose();
146
146
147 }
147 }
148
148
149 [TestMethod]
149 [TestMethod]
150 public void WorkerPoolDisposeTest() {
150 public void WorkerPoolDisposeTest() {
151 var pool = new WorkerPool(5, 20);
151 var pool = new WorkerPool(5, 20);
152 Assert.AreEqual(5, pool.PoolSize);
152 Assert.AreEqual(5, pool.PoolSize);
153 pool.Dispose();
153 pool.Dispose();
154 Thread.Sleep(500);
154 Thread.Sleep(500);
155 Assert.AreEqual(0, pool.PoolSize);
155 Assert.AreEqual(0, pool.PoolSize);
156 pool.Dispose();
156 pool.Dispose();
157 }
157 }
158
158
159 [TestMethod]
159 [TestMethod]
160 public void MTQueueTest() {
160 public void MTQueueTest() {
161 var queue = new MTQueue<int>();
161 var queue = new MTQueue<int>();
162 int res;
162 int res;
163
163
164 queue.Enqueue(10);
164 queue.Enqueue(10);
165 Assert.IsTrue(queue.TryDequeue(out res));
165 Assert.IsTrue(queue.TryDequeue(out res));
166 Assert.AreEqual(10, res);
166 Assert.AreEqual(10, res);
167 Assert.IsFalse(queue.TryDequeue(out res));
167 Assert.IsFalse(queue.TryDequeue(out res));
168
168
169 for (int i = 0; i < 1000; i++)
169 for (int i = 0; i < 1000; i++)
170 queue.Enqueue(i);
170 queue.Enqueue(i);
171
171
172 for (int i = 0; i < 1000; i++) {
172 for (int i = 0; i < 1000; i++) {
173 queue.TryDequeue(out res);
173 queue.TryDequeue(out res);
174 Assert.AreEqual(i, res);
174 Assert.AreEqual(i, res);
175 }
175 }
176
176
177 int writers = 0;
177 int writers = 0;
178 int readers = 0;
178 int readers = 0;
179 var stop = new ManualResetEvent(false);
179 var stop = new ManualResetEvent(false);
180 int total = 0;
180 int total = 0;
181
181
182 int itemsPerWriter = 1000;
182 int itemsPerWriter = 1000;
183 int writersCount = 3;
183 int writersCount = 3;
184
184
185 for (int i = 0; i < writersCount; i++) {
185 for (int i = 0; i < writersCount; i++) {
186 Interlocked.Increment(ref writers);
186 Interlocked.Increment(ref writers);
187 var wn = i;
187 var wn = i;
188 AsyncPool
188 AsyncPool
189 .InvokeNewThread(() => {
189 .InvokeNewThread(() => {
190 for (int ii = 0; ii < itemsPerWriter; ii++) {
190 for (int ii = 0; ii < itemsPerWriter; ii++) {
191 queue.Enqueue(1);
191 queue.Enqueue(1);
192 }
192 }
193 return 1;
193 return 1;
194 })
194 })
195 .Anyway(() => Interlocked.Decrement(ref writers));
195 .Anyway(() => Interlocked.Decrement(ref writers));
196 }
196 }
197
197
198 for (int i = 0; i < 10; i++) {
198 for (int i = 0; i < 10; i++) {
199 Interlocked.Increment(ref readers);
199 Interlocked.Increment(ref readers);
200 var wn = i;
200 var wn = i;
201 AsyncPool
201 AsyncPool
202 .InvokeNewThread(() => {
202 .InvokeNewThread(() => {
203 int t;
203 int t;
204 do {
204 do {
205 while (queue.TryDequeue(out t))
205 while (queue.TryDequeue(out t))
206 Interlocked.Add(ref total, t);
206 Interlocked.Add(ref total, t);
207 } while (writers > 0);
207 } while (writers > 0);
208 return 1;
208 return 1;
209 })
209 })
210 .Anyway(() => {
210 .Anyway(() => {
211 Interlocked.Decrement(ref readers);
211 Interlocked.Decrement(ref readers);
212 if (readers == 0)
212 if (readers == 0)
213 stop.Set();
213 stop.Set();
214 });
214 });
215 }
215 }
216
216
217 stop.WaitOne();
217 stop.WaitOne();
218
218
219 Assert.AreEqual(itemsPerWriter * writersCount, total);
219 Assert.AreEqual(itemsPerWriter * writersCount, total);
220 }
220 }
221
221
222 [TestMethod]
222 [TestMethod]
223 public void ParallelMapTest() {
223 public void ParallelMapTest() {
224
224
225 int count = 100000;
225 int count = 100000;
226
226
227 double[] args = new double[count];
227 double[] args = new double[count];
228 var rand = new Random();
228 var rand = new Random();
229
229
230 for (int i = 0; i < count; i++)
230 for (int i = 0; i < count; i++)
231 args[i] = rand.NextDouble();
231 args[i] = rand.NextDouble();
232
232
233 var t = Environment.TickCount;
233 var t = Environment.TickCount;
234 var res = args.ParallelMap(x => Math.Sin(x*x), 4).Join();
234 var res = args.ParallelMap(x => Math.Sin(x*x), 4).Join();
235
235
236 Console.WriteLine("Map complete in {0} ms", Environment.TickCount - t);
236 Console.WriteLine("Map complete in {0} ms", Environment.TickCount - t);
237
237
238 t = Environment.TickCount;
238 t = Environment.TickCount;
239 for (int i = 0; i < count; i++)
239 for (int i = 0; i < count; i++)
240 Assert.AreEqual(Math.Sin(args[i] * args[i]), res[i]);
240 Assert.AreEqual(Math.Sin(args[i] * args[i]), res[i]);
241 Console.WriteLine("Verified in {0} ms", Environment.TickCount - t);
241 Console.WriteLine("Verified in {0} ms", Environment.TickCount - t);
242 }
242 }
243
243
244 [TestMethod]
244 [TestMethod]
245 public void ChainedMapTest() {
245 public void ChainedMapTest() {
246
246
247 using (var pool = new WorkerPool(0,100,0)) {
247 using (var pool = new WorkerPool(0,100,0)) {
248 int count = 10000;
248 int count = 10000;
249
249
250 double[] args = new double[count];
250 double[] args = new double[count];
251 var rand = new Random();
251 var rand = new Random();
252
252
253 for (int i = 0; i < count; i++)
253 for (int i = 0; i < count; i++)
254 args[i] = rand.NextDouble();
254 args[i] = rand.NextDouble();
255
255
256 var t = Environment.TickCount;
256 var t = Environment.TickCount;
257 var res = args
257 var res = args
258 .ChainedMap(
258 .ChainedMap(
259 x => pool.Invoke(
259 x => pool.Invoke(
260 () => Math.Sin(x * x)
260 () => Math.Sin(x * x)
261 ),
261 ),
262 4
262 4
263 )
263 )
264 .Join();
264 .Join();
265
265
266 Console.WriteLine("Map complete in {0} ms", Environment.TickCount - t);
266 Console.WriteLine("Map complete in {0} ms", Environment.TickCount - t);
267
267
268 t = Environment.TickCount;
268 t = Environment.TickCount;
269 for (int i = 0; i < count; i++)
269 for (int i = 0; i < count; i++)
270 Assert.AreEqual(Math.Sin(args[i] * args[i]), res[i]);
270 Assert.AreEqual(Math.Sin(args[i] * args[i]), res[i]);
271 Console.WriteLine("Verified in {0} ms", Environment.TickCount - t);
271 Console.WriteLine("Verified in {0} ms", Environment.TickCount - t);
272 Console.WriteLine("Max workers: {0}", pool.MaxRunningThreads);
272 Console.WriteLine("Max workers: {0}", pool.MaxRunningThreads);
273 }
273 }
274 }
274 }
275
275
276 [TestMethod]
276 [TestMethod]
277 public void ParallelForEachTest() {
277 public void ParallelForEachTest() {
278
278
279 int count = 100000;
279 int count = 100000;
280
280
281 int[] args = new int[count];
281 int[] args = new int[count];
282 var rand = new Random();
282 var rand = new Random();
283
283
284 for (int i = 0; i < count; i++)
284 for (int i = 0; i < count; i++)
285 args[i] = (int)(rand.NextDouble() * 100);
285 args[i] = (int)(rand.NextDouble() * 100);
286
286
287 int result = 0;
287 int result = 0;
288
288
289 var t = Environment.TickCount;
289 var t = Environment.TickCount;
290 args.ParallelForEach(x => Interlocked.Add(ref result, x), 4).Join();
290 args.ParallelForEach(x => Interlocked.Add(ref result, x), 4).Join();
291
291
292 Console.WriteLine("Iteration complete in {0} ms, result: {1}", Environment.TickCount - t, result);
292 Console.WriteLine("Iteration complete in {0} ms, result: {1}", Environment.TickCount - t, result);
293
293
294 int result2 = 0;
294 int result2 = 0;
295
295
296 t = Environment.TickCount;
296 t = Environment.TickCount;
297 for (int i = 0; i < count; i++)
297 for (int i = 0; i < count; i++)
298 result2 += args[i];
298 result2 += args[i];
299 Assert.AreEqual(result2, result);
299 Assert.AreEqual(result2, result);
300 Console.WriteLine("Verified in {0} ms", Environment.TickCount - t);
300 Console.WriteLine("Verified in {0} ms", Environment.TickCount - t);
301 }
301 }
302
302
303 [TestMethod]
303 [TestMethod]
304 public void ComplexCase1Test() {
304 public void ComplexCase1Test() {
305 var flags = new bool[3];
305 var flags = new bool[3];
306
306
307 // op1 (aync 200ms) => op2 (async 200ms) => op3 (sync map)
307 // op1 (aync 200ms) => op2 (async 200ms) => op3 (sync map)
308
308
309 var p = PromiseHelper
309 var p = PromiseHelper
310 .Sleep(200, "Alan")
310 .Sleep(200, "Alan")
311 .Cancelled(() => flags[0] = true)
311 .Cancelled(() => flags[0] = true)
312 .Chain(x =>
312 .Chain(x =>
313 PromiseHelper
313 PromiseHelper
314 .Sleep(200, "Hi, " + x)
314 .Sleep(200, "Hi, " + x)
315 .Map(y => y)
315 .Map(y => y)
316 .Cancelled(() => flags[1] = true)
316 .Cancelled(() => flags[1] = true)
317 )
317 )
318 .Cancelled(() => flags[2] = true);
318 .Cancelled(() => flags[2] = true);
319 Thread.Sleep(300);
319 Thread.Sleep(300);
320 p.Cancel();
320 p.Cancel();
321 try {
321 try {
322 Assert.AreEqual(p.Join(), "Hi, Alan");
322 Assert.AreEqual(p.Join(), "Hi, Alan");
323 Assert.Fail("Shouldn't get here");
323 Assert.Fail("Shouldn't get here");
324 } catch (OperationCanceledException) {
324 } catch (OperationCanceledException) {
325 }
325 }
326
326
327 Assert.IsFalse(flags[0]);
327 Assert.IsFalse(flags[0]);
328 Assert.IsTrue(flags[1]);
328 Assert.IsTrue(flags[1]);
329 Assert.IsTrue(flags[2]);
329 Assert.IsTrue(flags[2]);
330 }
330 }
331
332 [TestMethod]
333 public void ChainedCancel1Test() {
334 // ΠΏΡ€ΠΈ ΠΎΡ‚ΠΌΠ΅Π½Π΅ сцСплСнной асинхронной ΠΎΠΏΠ΅Ρ€Π°Ρ†ΠΈΠΈ всС ΠΎΠ±Π΅Ρ‰Π°Π½ΠΈΠ΅ Π΄ΠΎΠ»ΠΆΠ½ΠΎ
335 // Π·Π°Π²Π΅Ρ€ΡˆΠ°Ρ‚ΡŒΡΡ ошибкой OperationCanceledException
336 var p = PromiseHelper
337 .Sleep(1, "Hi, HAL!")
338 .Chain(x => {
339 // запускаСм Π΄Π²Π΅ асинхронныС ΠΎΠΏΠ΅Ρ€Π°Ρ†ΠΈΠΈ
340 var result = PromiseHelper.Sleep(1000, "HEM ENABLED!!!");
341 // вторая опСрация отмСняСт ΠΏΠ΅Ρ€Π²ΡƒΡŽ Π΄ΠΎ Π·Π°Π²Π΅Ρ€ΡˆΠ΅Π½ΠΈΡ
342 PromiseHelper
343 .Sleep(100, "HAL, STOP!")
344 .Then(() => result.Cancel());
345 return result;
346 });
347 try {
348 p.Join();
349 } catch (TargetInvocationException err) {
350 Assert.IsTrue(err.InnerException is OperationCanceledException);
351 }
352 }
353
354 [TestMethod]
355 public void ChainedCancel2Test() {
356 // ΠΏΡ€ΠΈ ΠΎΡ‚ΠΌΠ΅Π½Π΅ Ρ†Π΅ΠΏΠΎΡ‡ΠΊΠΈ ΠΎΠ±Π΅Ρ‰Π°Π½ΠΈΠΉ, Π²Π»ΠΎΠΆΠ΅Π½Π½Ρ‹Π΅ ΠΎΠΏΠ΅Ρ€Π°Ρ†ΠΈΠΈ Ρ‚Π°ΠΊΠΆΠ΅ Π΄ΠΎΠ»ΠΆΠ½Ρ‹ ΠΎΡ‚ΠΌΠ΅Π½ΡΡ‚ΡŒΡΡ
357 IPromiseBase p = null;
358 var pSurvive = new Promise<bool>();
359 var hemStarted = new ManualResetEvent(false);
360 p = PromiseHelper
361 .Sleep(1, "Hi, HAL!")
362 .Chain(x => {
363 hemStarted.Set();
364 // запускаСм Π΄Π²Π΅ асинхронныС ΠΎΠΏΠ΅Ρ€Π°Ρ†ΠΈΠΈ
365 var result = PromiseHelper
366 .Sleep(1000, "HEM ENABLED!!!")
367 .Then(s => pSurvive.Resolve(false));
368
369 result
370 .Cancelled(() => pSurvive.Resolve(true));
371
372 return result;
373 });
374
375 hemStarted.WaitOne();
376 p.Cancel();
377
378 try {
379 p.Join();
380 } catch (OperationCanceledException) {
381 Assert.IsTrue(pSurvive.Join());
382 }
383 }
331 }
384 }
332 }
385 }
333
386
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@@ -1,32 +1,31
1 using System;
1 using System;
2 using System.Collections.Generic;
2 using System.Collections.Generic;
3 using System.Linq;
3 using System.Linq;
4 using System.Text;
4 using System.Text;
5
5
6 namespace Implab
6 namespace Implab
7 {
7 {
8 public interface IPromise<T>: IPromiseBase
8 public interface IPromise<T>: IPromiseBase
9 {
9 {
10
10
11 T Join();
11 new T Join();
12
12 new T Join(int timeout);
13 T Join(int timeout);
14
13
15 IPromise<T> Then(ResultHandler<T> success, ErrorHandler error);
14 IPromise<T> Then(ResultHandler<T> success, ErrorHandler error);
16 IPromise<T> Then(ResultHandler<T> success, ErrorHandler<T> error);
15 IPromise<T> Then(ResultHandler<T> success, ErrorHandler<T> error);
17 IPromise<T> Then(ResultHandler<T> success);
16 IPromise<T> Then(ResultHandler<T> success);
18 IPromise<T> Error(ErrorHandler error);
17 new IPromise<T> Error(ErrorHandler error);
19 IPromise<T> Error(ErrorHandler<T> error);
18 IPromise<T> Error(ErrorHandler<T> error);
20
19
21 IPromise<T2> Map<T2>(ResultMapper<T,T2> mapper, ErrorHandler error);
20 IPromise<T2> Map<T2>(ResultMapper<T,T2> mapper, ErrorHandler error);
22 IPromise<T2> Map<T2>(ResultMapper<T, T2> mapper);
21 IPromise<T2> Map<T2>(ResultMapper<T, T2> mapper);
23
22
24 IPromise<T2> Chain<T2>(ChainedOperation<T, T2> chained, ErrorHandler error);
23 IPromise<T2> Chain<T2>(ChainedOperation<T, T2> chained, ErrorHandler error);
25 IPromise<T2> Chain<T2>(ChainedOperation<T, T2> chained);
24 IPromise<T2> Chain<T2>(ChainedOperation<T, T2> chained);
26
25
27 IPromise<T> Cancelled(Action handler);
26 new IPromise<T> Cancelled(Action handler);
28 IPromise<T> Finally(Action handler);
27 new IPromise<T> Finally(Action handler);
29 IPromise<T> Anyway(Action handler);
28 new IPromise<T> Anyway(Action handler);
30
29
31 }
30 }
32 }
31 }
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@@ -1,30 +1,37
1 using System;
1 using System;
2 using System.Collections.Generic;
2 using System.Collections.Generic;
3 using System.Linq;
3 using System.Linq;
4 using System.Text;
4 using System.Text;
5
5
6 namespace Implab {
6 namespace Implab {
7 public interface IPromiseBase: ICancellable {
7 public interface IPromiseBase: ICancellable {
8 /// <summary>
8 /// <summary>
9 /// Check whereather the promise has no more than one dependent promise.
9 /// Check whereather the promise has no more than one dependent promise.
10 /// </summary>
10 /// </summary>
11 bool IsExclusive {
11 bool IsExclusive {
12 get;
12 get;
13 }
13 }
14
14
15 /// <summary>
15 /// <summary>
16 /// Π’ΠΈΠΏ Ρ€Π΅Π·ΡƒΠ»ΡŒΡ‚Π°Ρ‚Π°, ΠΏΠΎΠ»ΡƒΡ‡Π°Π΅ΠΌΠΎΠ³ΠΎ Ρ‡Π΅Ρ€Π΅Π· Π΄Π°Π½Π½ΠΎΠ΅ ΠΎΠ±Π΅Ρ‰Π°Π½ΠΈΠ΅.
16 /// Π’ΠΈΠΏ Ρ€Π΅Π·ΡƒΠ»ΡŒΡ‚Π°Ρ‚Π°, ΠΏΠΎΠ»ΡƒΡ‡Π°Π΅ΠΌΠΎΠ³ΠΎ Ρ‡Π΅Ρ€Π΅Π· Π΄Π°Π½Π½ΠΎΠ΅ ΠΎΠ±Π΅Ρ‰Π°Π½ΠΈΠ΅.
17 /// </summary>
17 /// </summary>
18 Type PromiseType { get; }
18 Type PromiseType { get; }
19
19
20 bool IsResolved { get; }
20 bool IsResolved { get; }
21
21
22 bool IsCancelled { get; }
22 bool IsCancelled { get; }
23
23
24 IPromiseBase Then(Action success,ErrorHandler error);
24 IPromiseBase Then(Action success,ErrorHandler error);
25 IPromiseBase Then(Action success);
25 IPromiseBase Then(Action success);
26 IPromiseBase Error(ErrorHandler error);
27 IPromiseBase Anyway(Action handler);
28 IPromiseBase Finally(Action handler);
29 IPromiseBase Cancelled(Action handler);
26
30
27 IPromise<T> Cast<T>();
31 IPromise<T> Cast<T>();
28
32
33 void Join();
34 void Join(int timeout);
35
29 }
36 }
30 }
37 }
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@@ -1,669 +1,762
1 using System;
1 using System;
2 using System.Collections.Generic;
2 using System.Collections.Generic;
3 using System.Reflection;
3 using System.Reflection;
4 using System.Diagnostics;
4 using System.Diagnostics;
5 using System.Threading;
5 using System.Threading;
6 using Implab.Parallels;
6 using Implab.Parallels;
7
7
8 namespace Implab {
8 namespace Implab {
9
9
10 public delegate void ErrorHandler(Exception e);
10 public delegate void ErrorHandler(Exception e);
11 public delegate T ErrorHandler<out T>(Exception e);
11 public delegate T ErrorHandler<out T>(Exception e);
12 public delegate void ResultHandler<in T>(T result);
12 public delegate void ResultHandler<in T>(T result);
13 public delegate TNew ResultMapper<in TSrc, out TNew>(TSrc result);
13 public delegate TNew ResultMapper<in TSrc, out TNew>(TSrc result);
14 public delegate IPromise<TNew> ChainedOperation<in TSrc,TNew>(TSrc result);
14 public delegate IPromise<TNew> ChainedOperation<in TSrc, TNew>(TSrc result);
15
15
16 /// <summary>
16 /// <summary>
17 /// Класс для асинхронного получСния Ρ€Π΅Π·ΡƒΠ»ΡŒΡ‚Π°Ρ‚ΠΎΠ². Π’Π°ΠΊ Π½Π°Π·Ρ‹Π²Π°Π΅ΠΌΠΎΠ΅ "ΠΎΠ±Π΅Ρ‰Π°Π½ΠΈΠ΅".
17 /// Класс для асинхронного получСния Ρ€Π΅Π·ΡƒΠ»ΡŒΡ‚Π°Ρ‚ΠΎΠ². Π’Π°ΠΊ Π½Π°Π·Ρ‹Π²Π°Π΅ΠΌΠΎΠ΅ "ΠΎΠ±Π΅Ρ‰Π°Π½ΠΈΠ΅".
18 /// </summary>
18 /// </summary>
19 /// <typeparam name="T">Π’ΠΈΠΏ ΠΏΠΎΠ»ΡƒΡ‡Π°Π΅ΠΌΠΎΠ³ΠΎ Ρ€Π΅Π·ΡƒΠ»ΡŒΡ‚Π°Ρ‚Π°</typeparam>
19 /// <typeparam name="T">Π’ΠΈΠΏ ΠΏΠΎΠ»ΡƒΡ‡Π°Π΅ΠΌΠΎΠ³ΠΎ Ρ€Π΅Π·ΡƒΠ»ΡŒΡ‚Π°Ρ‚Π°</typeparam>
20 /// <remarks>
20 /// <remarks>
21 /// <para>БСрвис ΠΏΡ€ΠΈ ΠΎΠ±Ρ€Π°Ρ‰Π΅Π½ΠΈΠΈ ΠΊ Π΅Π³ΠΎ ΠΌΠ΅Ρ‚ΠΎΠ΄Ρƒ Π΄Π°Π΅Ρ‚ ΠΎΠ±Π΅Ρ‰Π°ΠΈΠ½ΠΈΠ΅ ΠΎ Π²Ρ‹ΠΏΠΎΠ»Π½Π΅Π½ΠΈΠΈ ΠΎΠΏΠ΅Ρ€Π°Ρ†ΠΈΠΈ,
21 /// <para>БСрвис ΠΏΡ€ΠΈ ΠΎΠ±Ρ€Π°Ρ‰Π΅Π½ΠΈΠΈ ΠΊ Π΅Π³ΠΎ ΠΌΠ΅Ρ‚ΠΎΠ΄Ρƒ Π΄Π°Π΅Ρ‚ ΠΎΠ±Π΅Ρ‰Π°ΠΈΠ½ΠΈΠ΅ ΠΎ Π²Ρ‹ΠΏΠΎΠ»Π½Π΅Π½ΠΈΠΈ ΠΎΠΏΠ΅Ρ€Π°Ρ†ΠΈΠΈ,
22 /// ΠΊΠ»ΠΈΠ΅Π½Ρ‚ ΠΏΠΎΠ»ΡƒΡ‡ΠΈΠ² Ρ‚Π°ΠΊΠΎΠ΅ ΠΎΠ±Π΅Ρ‰Π°Π½ΠΈΠ΅ ΠΌΠΎΠΆΠ΅Ρ‚ ΡƒΡΡ‚Π°Π½ΠΎΠ²ΠΈΡ‚ΡŒ ряд ΠΎΠ±Ρ€Π°Ρ‚Π½Ρ‹Ρ… Π²Ρ‹Π·ΠΎΠ²ΠΎ для получСния
22 /// ΠΊΠ»ΠΈΠ΅Π½Ρ‚ ΠΏΠΎΠ»ΡƒΡ‡ΠΈΠ² Ρ‚Π°ΠΊΠΎΠ΅ ΠΎΠ±Π΅Ρ‰Π°Π½ΠΈΠ΅ ΠΌΠΎΠΆΠ΅Ρ‚ ΡƒΡΡ‚Π°Π½ΠΎΠ²ΠΈΡ‚ΡŒ ряд ΠΎΠ±Ρ€Π°Ρ‚Π½Ρ‹Ρ… Π²Ρ‹Π·ΠΎΠ²ΠΎ для получСния
23 /// событий выполнСния обСщания, Ρ‚ΠΎΠ΅ΡΡ‚ΡŒ Π·Π°Π²Π΅Ρ€ΡˆΠ΅Π½ΠΈΡ ΠΎΠΏΠ΅Ρ€Π°Ρ†ΠΈΠΈ ΠΈ прСдоставлСнии Ρ€Π΅Π·ΡƒΠ»ΡŒΡ‚Π°Ρ‚ΠΎΠ².</para>
23 /// событий выполнСния обСщания, Ρ‚ΠΎΠ΅ΡΡ‚ΡŒ Π·Π°Π²Π΅Ρ€ΡˆΠ΅Π½ΠΈΡ ΠΎΠΏΠ΅Ρ€Π°Ρ†ΠΈΠΈ ΠΈ прСдоставлСнии Ρ€Π΅Π·ΡƒΠ»ΡŒΡ‚Π°Ρ‚ΠΎΠ².</para>
24 /// <para>
24 /// <para>
25 /// ΠžΠ±Π΅Ρ‰Π΅Π½ΠΈΠ΅ ΠΌΠΎΠΆΠ΅Ρ‚ Π±Ρ‹Ρ‚ΡŒ ΠΊΠ°ΠΊ Π²Ρ‹ΠΏΠΎΠ»Π½Π΅Π½ΠΎ, Ρ‚Π°ΠΊ ΠΈ Π²Ρ‹ΠΏΠΎΠ»Π½Π΅Π½ΠΎ с ошибкой. Для подписки Π½Π°
25 /// ΠžΠ±Π΅Ρ‰Π΅Π½ΠΈΠ΅ ΠΌΠΎΠΆΠ΅Ρ‚ Π±Ρ‹Ρ‚ΡŒ ΠΊΠ°ΠΊ Π²Ρ‹ΠΏΠΎΠ»Π½Π΅Π½ΠΎ, Ρ‚Π°ΠΊ ΠΈ Π²Ρ‹ΠΏΠΎΠ»Π½Π΅Π½ΠΎ с ошибкой. Для подписки Π½Π°
26 /// Π΄Π°Π½Π½Ρ‹Π΅ события ΠΊΠ»ΠΈΠ΅Π½Ρ‚ Π΄ΠΎΠ»ΠΆΠ΅Π½ ΠΈΡΠΏΠΎΠ»ΡŒΠ·ΠΎΠ²Π°Ρ‚ΡŒ ΠΌΠ΅Ρ‚ΠΎΠ΄Ρ‹ <c>Then</c>.
26 /// Π΄Π°Π½Π½Ρ‹Π΅ события ΠΊΠ»ΠΈΠ΅Π½Ρ‚ Π΄ΠΎΠ»ΠΆΠ΅Π½ ΠΈΡΠΏΠΎΠ»ΡŒΠ·ΠΎΠ²Π°Ρ‚ΡŒ ΠΌΠ΅Ρ‚ΠΎΠ΄Ρ‹ <c>Then</c>.
27 /// </para>
27 /// </para>
28 /// <para>
28 /// <para>
29 /// БСрвис, Π² свою ΠΎΡ‡Π΅Ρ€Π΅Π΄ΡŒ, ΠΏΠΎ ΠΎΠΊΠΎΠ½Ρ‡Π°Π½ΠΈΡŽ выполнСния ΠΎΠΏΠ΅Ρ€Π°Ρ†ΠΈΠΈ (Π²ΠΎΠ·ΠΌΠΎΠΆΠ½ΠΎ с ошибкой),
29 /// БСрвис, Π² свою ΠΎΡ‡Π΅Ρ€Π΅Π΄ΡŒ, ΠΏΠΎ ΠΎΠΊΠΎΠ½Ρ‡Π°Π½ΠΈΡŽ выполнСния ΠΎΠΏΠ΅Ρ€Π°Ρ†ΠΈΠΈ (Π²ΠΎΠ·ΠΌΠΎΠΆΠ½ΠΎ с ошибкой),
30 /// ΠΈΡΠΏΠΎΠ»ΡŒΠ·ΡƒΠ΅Ρ‚ ΠΌΠ΅Ρ‚ΠΎΠ΄Ρ‹ <c>Resolve</c> Π»ΠΈΠ±ΠΎ <c>Reject</c> для оповСщСния ΠΊΠ»ΠΈΠ΅Ρ‚Π½Π° ΠΎ
30 /// ΠΈΡΠΏΠΎΠ»ΡŒΠ·ΡƒΠ΅Ρ‚ ΠΌΠ΅Ρ‚ΠΎΠ΄Ρ‹ <c>Resolve</c> Π»ΠΈΠ±ΠΎ <c>Reject</c> для оповСщСния ΠΊΠ»ΠΈΠ΅Ρ‚Π½Π° ΠΎ
31 /// Π²Ρ‹ΠΏΠΎΠ»Π½Π΅Π½ΠΈΠΈ обСщания.
31 /// Π²Ρ‹ΠΏΠΎΠ»Π½Π΅Π½ΠΈΠΈ обСщания.
32 /// </para>
32 /// </para>
33 /// <para>
33 /// <para>
34 /// Если сСрвСр успСл Π²Ρ‹ΠΏΠΎΠ»Π½ΠΈΡ‚ΡŒ ΠΎΠ±Π΅Ρ‰Π°Π½ΠΈΠ΅ Π΅Ρ‰Π΅ Π΄ΠΎ Ρ‚ΠΎΠ³ΠΎ, ΠΊΠ°ΠΊ ΠΊΠ»ΠΈΠ΅Π½Ρ‚ Π½Π° Π½Π΅Π³ΠΎ подписался,
34 /// Если сСрвСр успСл Π²Ρ‹ΠΏΠΎΠ»Π½ΠΈΡ‚ΡŒ ΠΎΠ±Π΅Ρ‰Π°Π½ΠΈΠ΅ Π΅Ρ‰Π΅ Π΄ΠΎ Ρ‚ΠΎΠ³ΠΎ, ΠΊΠ°ΠΊ ΠΊΠ»ΠΈΠ΅Π½Ρ‚ Π½Π° Π½Π΅Π³ΠΎ подписался,
35 /// Ρ‚ΠΎ Π² ΠΌΠΎΠΌΠ΅Π½Ρ‚ подписки ΠΊΠ»ΠΈΠ΅Π½Ρ‚Π° Π±ΡƒΠ΄ΡƒΡ‚ Π²Ρ‹Π·Π²Π°Π½Ρ‹ ΡΠΎΠΎΡ‚Π²Π΅Ρ‚ΡΠ²ΡƒΡŽΡ‰ΠΈΠ΅ события Π² синхронном
35 /// Ρ‚ΠΎ Π² ΠΌΠΎΠΌΠ΅Π½Ρ‚ подписки ΠΊΠ»ΠΈΠ΅Π½Ρ‚Π° Π±ΡƒΠ΄ΡƒΡ‚ Π²Ρ‹Π·Π²Π°Π½Ρ‹ ΡΠΎΠΎΡ‚Π²Π΅Ρ‚ΡΠ²ΡƒΡŽΡ‰ΠΈΠ΅ события Π² синхронном
36 /// Ρ€Π΅ΠΆΠΈΠΌΠ΅ ΠΈ ΠΊΠ»ΠΈΠ΅Π½Ρ‚ Π±ΡƒΠ΄Π΅Ρ‚ ΠΎΠΏΠΎΠ²Π΅Ρ‰Π΅Π½ Π² любом случаС. Π˜Π½Π°Ρ‡Π΅, ΠΎΠ±Ρ€Π°Π±ΠΎΡ‚Ρ‡ΠΈΠΊΠΈ Π΄ΠΎΠ±Π°Π²Π»ΡΡŽΡ‚ΡΡ Π²
36 /// Ρ€Π΅ΠΆΠΈΠΌΠ΅ ΠΈ ΠΊΠ»ΠΈΠ΅Π½Ρ‚ Π±ΡƒΠ΄Π΅Ρ‚ ΠΎΠΏΠΎΠ²Π΅Ρ‰Π΅Π½ Π² любом случаС. Π˜Π½Π°Ρ‡Π΅, ΠΎΠ±Ρ€Π°Π±ΠΎΡ‚Ρ‡ΠΈΠΊΠΈ Π΄ΠΎΠ±Π°Π²Π»ΡΡŽΡ‚ΡΡ Π²
37 /// список Π² порядкС подписания ΠΈ Π² этом ΠΆΠ΅ порядкС ΠΎΠ½ΠΈ Π±ΡƒΠ΄ΡƒΡ‚ Π²Ρ‹Π·Π²Π°Π½Ρ‹ ΠΏΡ€ΠΈ Π²Ρ‹ΠΏΠΎΠ»Π½Π΅Π½ΠΈΠΈ
37 /// список Π² порядкС подписания ΠΈ Π² этом ΠΆΠ΅ порядкС ΠΎΠ½ΠΈ Π±ΡƒΠ΄ΡƒΡ‚ Π²Ρ‹Π·Π²Π°Π½Ρ‹ ΠΏΡ€ΠΈ Π²Ρ‹ΠΏΠΎΠ»Π½Π΅Π½ΠΈΠΈ
38 /// обСщания.
38 /// обСщания.
39 /// </para>
39 /// </para>
40 /// <para>
40 /// <para>
41 /// ΠžΠ±Ρ€Π°Π±Π°Ρ‚Ρ‹Π²Π°Ρ Ρ€Π΅Π·ΡƒΠ»ΡŒΡ‚Π°Ρ‚Ρ‹ обСщания ΠΌΠΎΠΆΠ½ΠΎ ΠΏΡ€Π΅ΠΎΠ±Ρ€Π°Π·ΠΎΠ²Ρ‹Π²Π°Ρ‚ΡŒ Ρ€Π΅Π·ΡƒΠ»ΡŒΡ‚Π°Ρ‚Ρ‹ Π»ΠΈΠ±ΠΎ ΠΈΠ½ΠΈΡ†ΠΈΠΈΡ€ΠΎΠ²Π°Ρ‚ΡŒ
41 /// ΠžΠ±Ρ€Π°Π±Π°Ρ‚Ρ‹Π²Π°Ρ Ρ€Π΅Π·ΡƒΠ»ΡŒΡ‚Π°Ρ‚Ρ‹ обСщания ΠΌΠΎΠΆΠ½ΠΎ ΠΏΡ€Π΅ΠΎΠ±Ρ€Π°Π·ΠΎΠ²Ρ‹Π²Π°Ρ‚ΡŒ Ρ€Π΅Π·ΡƒΠ»ΡŒΡ‚Π°Ρ‚Ρ‹ Π»ΠΈΠ±ΠΎ ΠΈΠ½ΠΈΡ†ΠΈΠΈΡ€ΠΎΠ²Π°Ρ‚ΡŒ
42 /// связанныС асинхронныС ΠΎΠΏΠ΅Ρ€Π°Ρ†ΠΈΠΈ, ΠΊΠΎΡ‚ΠΎΡ€Ρ‹Π΅ Ρ‚Π°ΠΊΠΆΠ΅ Π²ΠΎΠ·Π²Ρ€Π°Ρ‰Π°ΡŽΡ‚ обСщания. Для этого слСдуСт
42 /// связанныС асинхронныС ΠΎΠΏΠ΅Ρ€Π°Ρ†ΠΈΠΈ, ΠΊΠΎΡ‚ΠΎΡ€Ρ‹Π΅ Ρ‚Π°ΠΊΠΆΠ΅ Π²ΠΎΠ·Π²Ρ€Π°Ρ‰Π°ΡŽΡ‚ обСщания. Для этого слСдуСт
43 /// ΠΈΡΠΏΠΎΠ»ΡŒΠ·ΠΎΠ²Π°Ρ‚ΡŒ ΡΠΎΠΎΡ‚Π²Π΅Ρ‚ΡΡ‚Π²ΡƒΡŽΡ‰ΡƒΡŽ Ρ„ΠΎΡ€ΠΌΡƒ ΠΌΠ΅Ρ‚ΠΎΠ΄Π΅ <c>Then</c>.
43 /// ΠΈΡΠΏΠΎΠ»ΡŒΠ·ΠΎΠ²Π°Ρ‚ΡŒ ΡΠΎΠΎΡ‚Π²Π΅Ρ‚ΡΡ‚Π²ΡƒΡŽΡ‰ΡƒΡŽ Ρ„ΠΎΡ€ΠΌΡƒ ΠΌΠ΅Ρ‚ΠΎΠ΄Π΅ <c>Then</c>.
44 /// </para>
44 /// </para>
45 /// <para>
45 /// <para>
46 /// Π’Π°ΠΊΠΆΠ΅ Ρ…ΠΎΡ€ΠΎΡˆΠΈΠΌ ΠΏΡ€Π°Π²ΠΈΠ»ΠΎΠΌ являСтся Ρ‚ΠΎ, Ρ‡Ρ‚ΠΎ <c>Resolve</c> ΠΈ <c>Reject</c> Π΄ΠΎΠ»ΠΆΠ΅Π½ Π²Ρ‹Π·Ρ‹Π²Π°Ρ‚ΡŒ
46 /// Π’Π°ΠΊΠΆΠ΅ Ρ…ΠΎΡ€ΠΎΡˆΠΈΠΌ ΠΏΡ€Π°Π²ΠΈΠ»ΠΎΠΌ являСтся Ρ‚ΠΎ, Ρ‡Ρ‚ΠΎ <c>Resolve</c> ΠΈ <c>Reject</c> Π΄ΠΎΠ»ΠΆΠ΅Π½ Π²Ρ‹Π·Ρ‹Π²Π°Ρ‚ΡŒ
47 /// Ρ‚ΠΎΠ»ΡŒΠΊΠΎ ΠΈΠ½ΠΈΡ†ΠΈΠ°Ρ‚ΠΎΡ€ обСщания ΠΈΠ½Π°Ρ‡Π΅ ΠΌΠΎΠ³ΡƒΡ‚ Π²ΠΎΠ·Π½ΠΈΠΊΠ½ΡƒΡ‚ΡŒ противорСчия.
47 /// Ρ‚ΠΎΠ»ΡŒΠΊΠΎ ΠΈΠ½ΠΈΡ†ΠΈΠ°Ρ‚ΠΎΡ€ обСщания ΠΈΠ½Π°Ρ‡Π΅ ΠΌΠΎΠ³ΡƒΡ‚ Π²ΠΎΠ·Π½ΠΈΠΊΠ½ΡƒΡ‚ΡŒ противорСчия.
48 /// </para>
48 /// </para>
49 /// </remarks>
49 /// </remarks>
50 public class Promise<T> : IPromise<T> {
50 public class Promise<T> : IPromise<T> {
51
51
52 protected struct HandlerDescriptor {
52 protected struct HandlerDescriptor {
53 public ResultHandler<T> resultHandler;
53 public ResultHandler<T> resultHandler;
54 public ErrorHandler errorHandler;
54 public ErrorHandler errorHandler;
55 public Action cancellHandler;
55 public Action cancellHandler;
56
56
57 public void Resolve(T result) {
57 public void Resolve(T result) {
58 if (resultHandler != null)
58 if (resultHandler != null)
59 try {
59 try {
60 resultHandler(result);
60 resultHandler(result);
61 } catch (Exception e) {
61 } catch (Exception e) {
62 Reject(e);
62 Reject(e);
63 }
63 }
64 }
64 }
65
65
66 public void Reject(Exception err) {
66 public void Reject(Exception err) {
67 if (errorHandler != null)
67 if (errorHandler != null)
68 try {
68 try {
69 errorHandler(err);
69 errorHandler(err);
70 } catch {
70 } catch {
71 }
71 }
72 }
72 }
73
73
74 public void Cancel() {
74 public void Cancel() {
75 if (cancellHandler != null)
75 if (cancellHandler != null)
76 try {
76 try {
77 cancellHandler();
77 cancellHandler();
78 } catch {
78 } catch {
79 }
79 }
80 }
80 }
81 }
81 }
82
82
83 const int UnresolvedSate = 0;
83 const int UnresolvedSate = 0;
84 const int TransitionalState = 1;
84 const int TransitionalState = 1;
85 const int SucceededState = 2;
85 const int SucceededState = 2;
86 const int RejectedState = 3;
86 const int RejectedState = 3;
87 const int CancelledState = 4;
87 const int CancelledState = 4;
88
88
89 readonly IPromiseBase m_parent;
90 readonly bool m_cancellable;
89 readonly bool m_cancellable;
91
90
92 int m_childrenCount = 0;
91 int m_childrenCount = 0;
93 int m_state;
92 int m_state;
94 T m_result;
93 T m_result;
95 Exception m_error;
94 Exception m_error;
96
95
97 readonly MTQueue<HandlerDescriptor> m_handlers = new MTQueue<HandlerDescriptor>();
96 readonly MTQueue<HandlerDescriptor> m_handlers = new MTQueue<HandlerDescriptor>();
98
97
99 public Promise() {
98 public Promise() {
100 m_cancellable = true;
99 m_cancellable = true;
101 }
100 }
102
101
103 public Promise(IPromiseBase parent, bool cancellable) {
102 public Promise(IPromiseBase parent, bool cancellable) {
104 m_cancellable = cancellable;
103 m_cancellable = cancellable;
105 m_parent = parent;
104 if (parent != null)
106 }
105 AddHandler(
107
106 null,
108 void InternalCancel() {
107 null,
109 // don't try to cancel parent :)
108 () => {
110 Cancel(false);
109 if (parent.IsExclusive)
110 parent.Cancel();
111 }
112 );
111 }
113 }
112
114
113 bool BeginTransit() {
115 bool BeginTransit() {
114 return UnresolvedSate == Interlocked.CompareExchange(ref m_state, TransitionalState, UnresolvedSate);
116 return UnresolvedSate == Interlocked.CompareExchange(ref m_state, TransitionalState, UnresolvedSate);
115 }
117 }
116
118
117 void CompleteTransit(int state) {
119 void CompleteTransit(int state) {
118 if (TransitionalState != Interlocked.CompareExchange(ref m_state, state, TransitionalState))
120 if (TransitionalState != Interlocked.CompareExchange(ref m_state, state, TransitionalState))
119 throw new InvalidOperationException("Can't complete transition when the object isn't in the transitional state");
121 throw new InvalidOperationException("Can't complete transition when the object isn't in the transitional state");
120 }
122 }
121
123
122 void WaitTransition() {
124 void WaitTransition() {
123 while (m_state == TransitionalState) {
125 while (m_state == TransitionalState) {
124 /* noop */
126 /* noop */
125 }
127 }
126 }
128 }
127
129
128 public bool IsResolved {
130 public bool IsResolved {
129 get {
131 get {
130 return m_state > 1;
132 return m_state > 1;
131 }
133 }
132 }
134 }
133
135
134 public bool IsCancelled {
136 public bool IsCancelled {
135 get {
137 get {
136 return m_state == CancelledState;
138 return m_state == CancelledState;
137 }
139 }
138 }
140 }
139
141
140 public Type PromiseType {
142 public Type PromiseType {
141 get { return typeof(T); }
143 get { return typeof(T); }
142 }
144 }
143
145
144 /// <summary>
146 /// <summary>
145 /// ВыполняСт ΠΎΠ±Π΅Ρ‰Π°Π½ΠΈΠ΅, сообщая ΠΎΠ± ΡƒΡΠΏΠ΅ΡˆΠ½ΠΎΠΌ Π²Ρ‹ΠΏΠΎΠ»Π½Π΅Π½ΠΈΠΈ.
147 /// ВыполняСт ΠΎΠ±Π΅Ρ‰Π°Π½ΠΈΠ΅, сообщая ΠΎΠ± ΡƒΡΠΏΠ΅ΡˆΠ½ΠΎΠΌ Π²Ρ‹ΠΏΠΎΠ»Π½Π΅Π½ΠΈΠΈ.
146 /// </summary>
148 /// </summary>
147 /// <param name="result">Π Π΅Π·ΡƒΠ»ΡŒΡ‚Π°Ρ‚ выполнСния.</param>
149 /// <param name="result">Π Π΅Π·ΡƒΠ»ΡŒΡ‚Π°Ρ‚ выполнСния.</param>
148 /// <exception cref="InvalidOperationException">Π”Π°Π½Π½ΠΎΠ΅ ΠΎΠ±Π΅Ρ‰Π°Π½ΠΈΠ΅ ΡƒΠΆΠ΅ Π²Ρ‹ΠΏΠΎΠ»Π½Π΅Π½ΠΎ</exception>
150 /// <exception cref="InvalidOperationException">Π”Π°Π½Π½ΠΎΠ΅ ΠΎΠ±Π΅Ρ‰Π°Π½ΠΈΠ΅ ΡƒΠΆΠ΅ Π²Ρ‹ΠΏΠΎΠ»Π½Π΅Π½ΠΎ</exception>
149 public void Resolve(T result) {
151 public void Resolve(T result) {
150 if (BeginTransit()) {
152 if (BeginTransit()) {
151 m_result = result;
153 m_result = result;
152 CompleteTransit(SucceededState);
154 CompleteTransit(SucceededState);
153 OnStateChanged();
155 OnStateChanged();
154 } else {
156 } else {
155 WaitTransition();
157 WaitTransition();
156 if (m_state != CancelledState)
158 if (m_state != CancelledState)
157 throw new InvalidOperationException("The promise is already resolved");
159 throw new InvalidOperationException("The promise is already resolved");
158 }
160 }
159 }
161 }
160
162
161 /// <summary>
163 /// <summary>
164 /// ВыполняСт ΠΎΠ±Π΅Ρ‰Π°Π½ΠΈΠ΅, сообщая ΠΎΠ± ΡƒΡΠΏΠ΅ΡˆΠ½ΠΎΠΌ Π²Ρ‹ΠΏΠΎΠ»Π½Π΅Π½ΠΈΠΈ. Π Π΅Π·ΡƒΠ»ΡŒΡ‚Π°Ρ‚ΠΎΠΌ выполнСния Π±ΡƒΠ΄Π΅Ρ‚ пустоС значСния.
165 /// </summary>
166 /// <remarks>
167 /// Π”Π°Π½Π½Ρ‹ΠΉ Π²Π°Ρ€ΠΈΠ°Π½Ρ‚ ΡƒΠ΄ΠΎΠ±Π΅Π½ Π² случаях, ΠΊΠΎΠ³Π΄Π° интСрСсСн Ρ„Π°ΠΊΡ‚ выполнСния ΠΎΠΏΠ΅Ρ€Π°Ρ†ΠΈΠΈ, Π½Π΅ΠΆΠ΅Π»ΠΈ ΠΏΠΎΠ»ΡƒΡ‡Π΅Π½Π½ΠΎΠ΅ Π·Π½Π°Ρ‡Π΅Π½ΠΈΠ΅.
168 /// </remarks>
169 public void Resolve() {
170 Resolve(default(T));
171 }
172
173 /// <summary>
162 /// ВыполняСт ΠΎΠ±Π΅Ρ‰Π°Π½ΠΈΠ΅, сообщая ΠΎΠ± ошибкС
174 /// ВыполняСт ΠΎΠ±Π΅Ρ‰Π°Π½ΠΈΠ΅, сообщая ΠΎΠ± ошибкС
163 /// </summary>
175 /// </summary>
164 /// <remarks>
176 /// <remarks>
165 /// ΠŸΠΎΡΠΊΠΎΠ»ΡŒΠΊΡƒ ΠΎΠ±Π΅Ρ‰Π°Π½ΠΈΠ΅ Π΄ΠΎΠ»ΠΆΠ½ΠΎ Ρ€Π°Π±ΠΎΡ‚Π°Ρ‚ΡŒ Π² ΠΌΠ½ΠΎΠ³ΠΎΠΏΡ‚ΠΎΡ‡Π½ΠΎΠΉ срСдС, ΠΏΡ€ΠΈ Π΅Π³ΠΎ Π²Ρ‹ΠΏΠΎΠ»Π½Π΅Π½ΠΈΠΈ сразу нСсколько ΠΏΠΎΡ‚ΠΎΠΊΠΎΠ²
177 /// ΠŸΠΎΡΠΊΠΎΠ»ΡŒΠΊΡƒ ΠΎΠ±Π΅Ρ‰Π°Π½ΠΈΠ΅ Π΄ΠΎΠ»ΠΆΠ½ΠΎ Ρ€Π°Π±ΠΎΡ‚Π°Ρ‚ΡŒ Π² ΠΌΠ½ΠΎΠ³ΠΎΠΏΡ‚ΠΎΡ‡Π½ΠΎΠΉ срСдС, ΠΏΡ€ΠΈ Π΅Π³ΠΎ Π²Ρ‹ΠΏΠΎΠ»Π½Π΅Π½ΠΈΠΈ сразу нСсколько ΠΏΠΎΡ‚ΠΎΠΊΠΎΠ²
166 /// ΠΌΠΎΠ³Ρƒ Π²Π΅Ρ€Π½ΡƒΡ‚ΡŒ ΠΎΡˆΠΈΠ±ΠΊΡƒ, ΠΏΡ€ΠΈ этом Ρ‚ΠΎΠ»ΡŒΠΊΠΎ пСрвая Π±ΡƒΠ΄Π΅Ρ‚ использована Π² качСствС Ρ€Π΅Π·ΡƒΠ»ΡŒΡ‚Π°Ρ‚Π°, ΠΎΡΡ‚Π°Π»ΡŒΠ½Ρ‹Π΅
178 /// ΠΌΠΎΠ³Ρƒ Π²Π΅Ρ€Π½ΡƒΡ‚ΡŒ ΠΎΡˆΠΈΠ±ΠΊΡƒ, ΠΏΡ€ΠΈ этом Ρ‚ΠΎΠ»ΡŒΠΊΠΎ пСрвая Π±ΡƒΠ΄Π΅Ρ‚ использована Π² качСствС Ρ€Π΅Π·ΡƒΠ»ΡŒΡ‚Π°Ρ‚Π°, ΠΎΡΡ‚Π°Π»ΡŒΠ½Ρ‹Π΅
167 /// Π±ΡƒΠ΄ΡƒΡ‚ ΠΏΡ€ΠΎΠΈΠ³Π½ΠΎΡ€ΠΈΡ€ΠΎΠ²Π°Π½Ρ‹.
179 /// Π±ΡƒΠ΄ΡƒΡ‚ ΠΏΡ€ΠΎΠΈΠ³Π½ΠΎΡ€ΠΈΡ€ΠΎΠ²Π°Π½Ρ‹.
168 /// </remarks>
180 /// </remarks>
169 /// <param name="error">Π˜ΡΠΊΠ»ΡŽΡ‡Π΅Π½ΠΈΠ΅ возникшСС ΠΏΡ€ΠΈ Π²Ρ‹ΠΏΠΎΠ»Π½Π΅Π½ΠΈΠΈ ΠΎΠΏΠ΅Ρ€Π°Ρ†ΠΈΠΈ</param>
181 /// <param name="error">Π˜ΡΠΊΠ»ΡŽΡ‡Π΅Π½ΠΈΠ΅ возникшСС ΠΏΡ€ΠΈ Π²Ρ‹ΠΏΠΎΠ»Π½Π΅Π½ΠΈΠΈ ΠΎΠΏΠ΅Ρ€Π°Ρ†ΠΈΠΈ</param>
170 /// <exception cref="InvalidOperationException">Π”Π°Π½Π½ΠΎΠ΅ ΠΎΠ±Π΅Ρ‰Π°Π½ΠΈΠ΅ ΡƒΠΆΠ΅ Π²Ρ‹ΠΏΠΎΠ»Π½Π΅Π½ΠΎ</exception>
182 /// <exception cref="InvalidOperationException">Π”Π°Π½Π½ΠΎΠ΅ ΠΎΠ±Π΅Ρ‰Π°Π½ΠΈΠ΅ ΡƒΠΆΠ΅ Π²Ρ‹ΠΏΠΎΠ»Π½Π΅Π½ΠΎ</exception>
171 public void Reject(Exception error) {
183 public void Reject(Exception error) {
172 if (BeginTransit()) {
184 if (BeginTransit()) {
173 m_error = error;
185 m_error = error;
174 CompleteTransit(RejectedState);
186 CompleteTransit(RejectedState);
175 OnStateChanged();
187 OnStateChanged();
176 } else {
188 } else {
177 WaitTransition();
189 WaitTransition();
178 if (m_state == SucceededState)
190 if (m_state == SucceededState)
179 throw new InvalidOperationException("The promise is already resolved");
191 throw new InvalidOperationException("The promise is already resolved");
180 }
192 }
181 }
193 }
182
194
183 /// <summary>
195 /// <summary>
184 /// ΠžΡ‚ΠΌΠ΅Π½ΡΠ΅Ρ‚ ΠΎΠΏΠ΅Ρ€Π°Ρ†ΠΈΡŽ, Ссли это Π²ΠΎΠ·ΠΌΠΎΠΆΠ½ΠΎ.
196 /// ΠžΡ‚ΠΌΠ΅Π½ΡΠ΅Ρ‚ ΠΎΠΏΠ΅Ρ€Π°Ρ†ΠΈΡŽ, Ссли это Π²ΠΎΠ·ΠΌΠΎΠΆΠ½ΠΎ.
185 /// </summary>
197 /// </summary>
186 /// <returns><c>true</c> ΠžΠΏΠ΅Ρ€Π°Ρ†ΠΈΡ Π±Ρ‹Π»Π° ΠΎΡ‚ΠΌΠ΅Π½Π΅Π½Π°, ΠΎΠ±Ρ€Π°Π±ΠΎΡ‚Ρ‡ΠΈΠΊΠΈ Π½Π΅ Π±ΡƒΠ΄ΡƒΡ‚ Π²Ρ‹Π·Π²Π°Π½Ρ‹.<c>false</c> ΠΎΡ‚ΠΌΠ΅Π½Π° Π½Π΅ Π²ΠΎΠ·ΠΌΠΎΠΆΠ½Π°, ΠΏΠΎΡΠΊΠΎΠ»ΡŒΠΊΡƒ ΠΎΠ±Π΅Ρ‰Π°Π½ΠΈΠ΅ ΡƒΠΆΠ΅ Π²Ρ‹ΠΏΠΎΠ»Π½Π΅Π½ΠΎ ΠΈ ΠΎΠ±Ρ€Π°Π±ΠΎΡ‚Ρ‡ΠΈΠΊΠΈ ΠΎΡ‚Ρ€Π°Π±ΠΎΡ‚Π°Π»ΠΈ.</returns>
198 /// <returns><c>true</c> ΠžΠΏΠ΅Ρ€Π°Ρ†ΠΈΡ Π±Ρ‹Π»Π° ΠΎΡ‚ΠΌΠ΅Π½Π΅Π½Π°, ΠΎΠ±Ρ€Π°Π±ΠΎΡ‚Ρ‡ΠΈΠΊΠΈ Π½Π΅ Π±ΡƒΠ΄ΡƒΡ‚ Π²Ρ‹Π·Π²Π°Π½Ρ‹.<c>false</c> ΠΎΡ‚ΠΌΠ΅Π½Π° Π½Π΅ Π²ΠΎΠ·ΠΌΠΎΠΆΠ½Π°, ΠΏΠΎΡΠΊΠΎΠ»ΡŒΠΊΡƒ ΠΎΠ±Π΅Ρ‰Π°Π½ΠΈΠ΅ ΡƒΠΆΠ΅ Π²Ρ‹ΠΏΠΎΠ»Π½Π΅Π½ΠΎ ΠΈ ΠΎΠ±Ρ€Π°Π±ΠΎΡ‚Ρ‡ΠΈΠΊΠΈ ΠΎΡ‚Ρ€Π°Π±ΠΎΡ‚Π°Π»ΠΈ.</returns>
187 public bool Cancel() {
199 public bool Cancel() {
188 return Cancel(true);
200 if (BeginTransit()) {
201 CompleteTransit(CancelledState);
202 OnStateChanged();
203 return true;
204 } else {
205 return false;
206 }
207 }
208
209 // сдСлано для Π²ΠΎΠ·Π²Ρ€Π°Ρ‰Π°Π΅ΠΌΠΎΠ³ΠΎ Ρ‚ΠΈΠΏΠ° void
210 protected void InternalCancel() {
211 Cancel();
189 }
212 }
190
213
191 /// <summary>
214 /// <summary>
192 /// Adds new handlers to this promise.
215 /// Adds new handlers to this promise.
193 /// </summary>
216 /// </summary>
194 /// <param name="success">The handler of the successfully completed operation.
217 /// <param name="success">The handler of the successfully completed operation.
195 /// This handler will recieve an operation result as a parameter.</param>
218 /// This handler will recieve an operation result as a parameter.</param>
196 /// <param name="error">Handles an exception that may occur during the operation.</param>
219 /// <param name="error">Handles an exception that may occur during the operation.</param>
197 /// <returns>The new promise chained to this one.</returns>
220 /// <returns>The new promise chained to this one.</returns>
198 public IPromise<T> Then(ResultHandler<T> success, ErrorHandler error) {
221 public IPromise<T> Then(ResultHandler<T> success, ErrorHandler error) {
199 if (success == null && error == null)
222 if (success == null && error == null)
200 return this;
223 return this;
201
224
202 var medium = new Promise<T>(this, true);
225 var medium = new Promise<T>(this, true);
203
226
204 ResultHandler<T> resultHandler;
227 ResultHandler<T> resultHandler;
205 if (success != null)
228 if (success != null)
206 resultHandler = x => {
229 resultHandler = x => {
207 success(x);
230 success(x);
208 medium.Resolve(x);
231 medium.Resolve(x);
209 };
232 };
210 else
233 else
211 resultHandler = medium.Resolve;
234 resultHandler = medium.Resolve;
212
235
213 ErrorHandler errorHandler;
236 ErrorHandler errorHandler;
214 if (error != null)
237 if (error != null)
215 errorHandler = x => {
238 errorHandler = x => {
216 // нСсмотря Π½Π° Ρ‚ΠΎ, Ρ‡Ρ‚ΠΎ ΠΎΠ±Ρ€Π°Π±ΠΎΡ‚Ρ‡ΠΈΠΊ ошибки вызываСтся бСзопасно,
239 // нСсмотря Π½Π° Ρ‚ΠΎ, Ρ‡Ρ‚ΠΎ ΠΎΠ±Ρ€Π°Π±ΠΎΡ‚Ρ‡ΠΈΠΊ ошибки вызываСтся бСзопасно,
217 // Ρ‚.Π΅. возникшиС Π² Π½Π΅ΠΌ ошибки Π±ΡƒΠ΄ΡƒΡ‚ ΠΏΠΎΠ΄Π°Π²Π»Π΅Π½Ρ‹, Π½Π°ΠΌ Π½ΡƒΠΆΠ½ΠΎ
240 // Ρ‚.Π΅. возникшиС Π² Π½Π΅ΠΌ ошибки Π±ΡƒΠ΄ΡƒΡ‚ ΠΏΠΎΠ΄Π°Π²Π»Π΅Π½Ρ‹, Π½Π°ΠΌ Π½ΡƒΠΆΠ½ΠΎ
218 // Π³Π°Ρ€Π°Π½Ρ‚ΠΈΡ€ΠΎΠ²Π°Ρ‚ΡŒ, Ρ‡Ρ‚ΠΎ ошибка Π±ΡƒΠ΄Π΅Ρ‚ ΠΏΠ΅Ρ€Π΅Π΄Π°Π½Π° дальшС ΠΏΠΎ Ρ†Π΅ΠΏΠΎΡ‡ΠΊΠ΅ ΠΎΠ±Π΅Ρ‰Π°Π½ΠΈΠΉ
241 // Π³Π°Ρ€Π°Π½Ρ‚ΠΈΡ€ΠΎΠ²Π°Ρ‚ΡŒ, Ρ‡Ρ‚ΠΎ ошибка Π±ΡƒΠ΄Π΅Ρ‚ ΠΏΠ΅Ρ€Π΅Π΄Π°Π½Π° дальшС ΠΏΠΎ Ρ†Π΅ΠΏΠΎΡ‡ΠΊΠ΅ ΠΎΠ±Π΅Ρ‰Π°Π½ΠΈΠΉ
219 try {
242 try {
220 error(x);
243 error(x);
221 } catch { }
244 } catch { }
222 medium.Reject(x);
245 medium.Reject(x);
223 };
246 };
224 else
247 else
225 errorHandler = medium.Reject;
248 errorHandler = medium.Reject;
226
249
227 AddHandler(resultHandler, errorHandler, medium.InternalCancel);
250 AddHandler(resultHandler, errorHandler, medium.InternalCancel);
228
251
229 return medium;
252 return medium;
230 }
253 }
231
254
232 public IPromiseBase Then(Action success,ErrorHandler error)
255 public IPromiseBase Then(Action success, ErrorHandler error) {
233 {
234 return Then(x => success(), error);
256 return Then(x => success(), error);
235 }
257 }
236
258
237 public IPromiseBase Then(Action success)
259 public IPromiseBase Then(Action success) {
238 {
239 return Then(x => success());
260 return Then(x => success());
240 }
261 }
241
262
242 /// <summary>
263 /// <summary>
243 /// Adds new handlers to this promise.
264 /// Adds new handlers to this promise.
244 /// </summary>
265 /// </summary>
245 /// <param name="success">The handler of the successfully completed operation.
266 /// <param name="success">The handler of the successfully completed operation.
246 /// This handler will recieve an operation result as a parameter.</param>
267 /// This handler will recieve an operation result as a parameter.</param>
247 /// <param name="error">Handles an exception that may occur during the operation and returns the value which will be used as the result of the operation.</param>
268 /// <param name="error">Handles an exception that may occur during the operation and returns the value which will be used as the result of the operation.</param>
248 /// <returns>The new promise chained to this one.</returns>
269 /// <returns>The new promise chained to this one.</returns>
249 public IPromise<T> Then(ResultHandler<T> success, ErrorHandler<T> error) {
270 public IPromise<T> Then(ResultHandler<T> success, ErrorHandler<T> error) {
250 if (success == null && error == null)
271 if (success == null && error == null)
251 return this;
272 return this;
252
273
253 var medium = new Promise<T>(this, true);
274 var medium = new Promise<T>(this, true);
254
275
255 ResultHandler<T> resultHandler;
276 ResultHandler<T> resultHandler;
256 ErrorHandler errorHandler;
277 ErrorHandler errorHandler;
257
278
258 if (success != null)
279 if (success != null)
259 resultHandler = x => {
280 resultHandler = x => {
260 success(x);
281 success(x);
261 medium.Resolve(x);
282 medium.Resolve(x);
262 };
283 };
263 else
284 else
264 resultHandler = medium.Resolve;
285 resultHandler = medium.Resolve;
265
286
266 if (error != null)
287 if (error != null)
267 errorHandler = x => {
288 errorHandler = x => {
268 try {
289 try {
269 medium.Resolve(error(x));
290 medium.Resolve(error(x));
270 } catch(Exception e) {
291 } catch (Exception e) {
271 medium.Reject(e);
292 medium.Reject(e);
272 }
293 }
273 };
294 };
274 else
295 else
275 errorHandler = medium.Reject;
296 errorHandler = medium.Reject;
276
297
277 AddHandler(resultHandler, errorHandler, medium.InternalCancel);
298 AddHandler(resultHandler, errorHandler, medium.InternalCancel);
278
299
279 return medium;
300 return medium;
280 }
301 }
281
302
282
303
283 public IPromise<T> Then(ResultHandler<T> success) {
304 public IPromise<T> Then(ResultHandler<T> success) {
284 if (success == null)
305 if (success == null)
285 return this;
306 return this;
286
307
287 var medium = new Promise<T>(this, true);
308 var medium = new Promise<T>(this, true);
288
309
289 ResultHandler<T> resultHandler;
310 ResultHandler<T> resultHandler;
290
311
291 if (success != null)
312 if (success != null)
292 resultHandler = x => {
313 resultHandler = x => {
293 success(x);
314 success(x);
294 medium.Resolve(x);
315 medium.Resolve(x);
295 };
316 };
296 else
317 else
297 resultHandler = medium.Resolve;
318 resultHandler = medium.Resolve;
298
319
299 AddHandler(resultHandler, medium.Reject, medium.InternalCancel);
320 AddHandler(resultHandler, medium.Reject, medium.InternalCancel);
300
321
301 return medium;
322 return medium;
302 }
323 }
303
324
304 public IPromise<T> Error(ErrorHandler error) {
325 public IPromise<T> Error(ErrorHandler error) {
305 return Then((ResultHandler<T>)null, error);
326 return Then((ResultHandler<T>)null, error);
306 }
327 }
307
328
308 /// <summary>
329 /// <summary>
309 /// Handles error and allows to keep the promise.
330 /// Handles error and allows to keep the promise.
310 /// </summary>
331 /// </summary>
311 /// <remarks>
332 /// <remarks>
312 /// If the specified handler throws an exception, this exception will be used to reject the promise.
333 /// If the specified handler throws an exception, this exception will be used to reject the promise.
313 /// </remarks>
334 /// </remarks>
314 /// <param name="handler">The error handler which returns the result of the promise.</param>
335 /// <param name="handler">The error handler which returns the result of the promise.</param>
315 /// <returns>New promise.</returns>
336 /// <returns>New promise.</returns>
316 public IPromise<T> Error(ErrorHandler<T> handler) {
337 public IPromise<T> Error(ErrorHandler<T> handler) {
317 if (handler == null)
338 if (handler == null)
318 return this;
339 return this;
319
340
320 var medium = new Promise<T>(this, true);
341 var medium = new Promise<T>(this, true);
321
342
322 AddHandler(
343 AddHandler(
323 x => medium.Resolve(x),
344 x => medium.Resolve(x),
324 e => {
345 e => {
325 try {
346 try {
326 medium.Resolve(handler(e));
347 medium.Resolve(handler(e));
327 } catch (Exception e2) {
348 } catch (Exception e2) {
328 medium.Reject(e2);
349 medium.Reject(e2);
329 }
350 }
330 },
351 },
331 medium.InternalCancel
352 medium.InternalCancel
332 );
353 );
333
354
334 return medium;
355 return medium;
335 }
356 }
336
357
337 public IPromise<T> Anyway(Action handler) {
358 public IPromise<T> Anyway(Action handler) {
338 if (handler == null)
359 if (handler == null)
339 return this;
360 return this;
340
361
341 var medium = new Promise<T>();
362 var medium = new Promise<T>(this,true);
342
363
343 AddHandler(
364 AddHandler(
344 x => {
365 x => {
345 // to avoid handler being called multiple times we handle exception by ourselfs
366 // to avoid handler being called multiple times we handle exception by ourselfs
346 try {
367 try {
347 handler();
368 handler();
348 medium.Resolve(x);
369 medium.Resolve(x);
349 } catch (Exception e) {
370 } catch (Exception e) {
350 medium.Reject(e);
371 medium.Reject(e);
351 }
372 }
352 },
373 },
353
374
354 e => {
375 e => {
355 try {
376 try {
356 handler();
377 handler();
357 } catch { }
378 } catch { }
358 medium.Reject(e);
379 medium.Reject(e);
359 },
380 },
360
381
361 medium.InternalCancel
382 medium.InternalCancel
362 );
383 );
363
384
364 return medium;
385 return medium;
365 }
386 }
366
387
367 /// <summary>
388 /// <summary>
368 /// ΠŸΠΎΠ·Π²ΠΎΠ»ΡΠ΅Ρ‚ ΠΏΡ€Π΅ΠΎΠ±Ρ€Π°Π·ΠΎΠ²Π°Ρ‚ΡŒ Ρ€Π΅Π·ΡƒΠ»ΡŒΡ‚Π°Ρ‚ выполСния ΠΎΠΏΠ΅Ρ€Π°Ρ†ΠΈΠΈ ΠΊ Π½ΠΎΠ²ΠΎΠΌΡƒ Ρ‚ΠΈΠΏΡƒ.
389 /// ΠŸΠΎΠ·Π²ΠΎΠ»ΡΠ΅Ρ‚ ΠΏΡ€Π΅ΠΎΠ±Ρ€Π°Π·ΠΎΠ²Π°Ρ‚ΡŒ Ρ€Π΅Π·ΡƒΠ»ΡŒΡ‚Π°Ρ‚ выполСния ΠΎΠΏΠ΅Ρ€Π°Ρ†ΠΈΠΈ ΠΊ Π½ΠΎΠ²ΠΎΠΌΡƒ Ρ‚ΠΈΠΏΡƒ.
369 /// </summary>
390 /// </summary>
370 /// <typeparam name="TNew">Новый Ρ‚ΠΈΠΏ Ρ€Π΅Π·ΡƒΠ»ΡŒΡ‚Π°Ρ‚Π°.</typeparam>
391 /// <typeparam name="TNew">Новый Ρ‚ΠΈΠΏ Ρ€Π΅Π·ΡƒΠ»ΡŒΡ‚Π°Ρ‚Π°.</typeparam>
371 /// <param name="mapper">ΠŸΡ€Π΅ΠΎΠ±Ρ€Π°Π·ΠΎΠ²Π°Π½ΠΈΠ΅ Ρ€Π΅Π·ΡƒΠ»ΡŒΡ‚Π°Ρ‚Π° ΠΊ Π½ΠΎΠ²ΠΎΠΌΡƒ Ρ‚ΠΈΠΏΡƒ.</param>
392 /// <param name="mapper">ΠŸΡ€Π΅ΠΎΠ±Ρ€Π°Π·ΠΎΠ²Π°Π½ΠΈΠ΅ Ρ€Π΅Π·ΡƒΠ»ΡŒΡ‚Π°Ρ‚Π° ΠΊ Π½ΠΎΠ²ΠΎΠΌΡƒ Ρ‚ΠΈΠΏΡƒ.</param>
372 /// <param name="error">ΠžΠ±Ρ€Π°Π±ΠΎΡ‚Ρ‡ΠΈΠΊ ошибки. Π”Π°Π½Π½Ρ‹ΠΉ ΠΎΠ±Ρ€Π°Π±ΠΎΡ‚Ρ‡ΠΈΠΊ ΠΏΠΎΠ»ΡƒΡ‡ΠΈΡ‚
393 /// <param name="error">ΠžΠ±Ρ€Π°Π±ΠΎΡ‚Ρ‡ΠΈΠΊ ошибки. Π”Π°Π½Π½Ρ‹ΠΉ ΠΎΠ±Ρ€Π°Π±ΠΎΡ‚Ρ‡ΠΈΠΊ ΠΏΠΎΠ»ΡƒΡ‡ΠΈΡ‚
373 /// ΠΈΡΠΊΠ»ΡŽΡ‡Π΅Π½ΠΈΠ΅ возникшСС ΠΏΡ€ΠΈ Π²Ρ‹ΠΏΠΎΠ»Π½Π΅Π½ΠΈΠΈ ΠΎΠΏΠ΅Ρ€Π°Ρ†ΠΈΠΈ.</param>
394 /// ΠΈΡΠΊΠ»ΡŽΡ‡Π΅Π½ΠΈΠ΅ возникшСС ΠΏΡ€ΠΈ Π²Ρ‹ΠΏΠΎΠ»Π½Π΅Π½ΠΈΠΈ ΠΎΠΏΠ΅Ρ€Π°Ρ†ΠΈΠΈ.</param>
374 /// <returns>НовоС ΠΎΠ±Π΅Ρ‰Π°Π½ΠΈΠ΅, ΠΊΠΎΡ‚ΠΎΡ€ΠΎΠ΅ Π±ΡƒΠ΄Π΅Ρ‚ Π²Ρ‹ΠΏΠΎΠ»Π½Π΅Π½ΠΎ ΠΏΡ€ΠΈ Π²Ρ‹ΠΏΠΎΠ»Π½Π΅Π½ΠΈΠΈ исходного обСщания.</returns>
395 /// <returns>НовоС ΠΎΠ±Π΅Ρ‰Π°Π½ΠΈΠ΅, ΠΊΠΎΡ‚ΠΎΡ€ΠΎΠ΅ Π±ΡƒΠ΄Π΅Ρ‚ Π²Ρ‹ΠΏΠΎΠ»Π½Π΅Π½ΠΎ ΠΏΡ€ΠΈ Π²Ρ‹ΠΏΠΎΠ»Π½Π΅Π½ΠΈΠΈ исходного обСщания.</returns>
375 public IPromise<TNew> Map<TNew>(ResultMapper<T, TNew> mapper, ErrorHandler error) {
396 public IPromise<TNew> Map<TNew>(ResultMapper<T, TNew> mapper, ErrorHandler error) {
376 if (mapper == null)
397 if (mapper == null)
377 throw new ArgumentNullException("mapper");
398 throw new ArgumentNullException("mapper");
378
399
379 // создаСм ΠΏΡ€ΠΈΡ†Π΅ΠΏΠ»Π΅Π½Π½ΠΎΠ΅ ΠΎΠ±Π΅Ρ‰Π°Π½ΠΈΠ΅
400 // создаСм ΠΏΡ€ΠΈΡ†Π΅ΠΏΠ»Π΅Π½Π½ΠΎΠ΅ ΠΎΠ±Π΅Ρ‰Π°Π½ΠΈΠ΅
380 var chained = new Promise<TNew>();
401 var chained = new Promise<TNew>(this,true);
381
402
382 ResultHandler<T> resultHandler = result => chained.Resolve(mapper(result));
403 ResultHandler<T> resultHandler = result => chained.Resolve(mapper(result));
383 ErrorHandler errorHandler = delegate(Exception e) {
404 ErrorHandler errorHandler = delegate(Exception e) {
384 if (error != null)
405 if (error != null)
385 try {
406 try {
386 error(e);
407 error(e);
387 } catch { }
408 } catch { }
388 // Π² случаС ошибки Π½ΡƒΠΆΠ½ΠΎ ΠΏΠ΅Ρ€Π΅Π΄Π°Ρ‚ΡŒ ΠΈΡΠΊΠ»ΡŽΡ‡Π΅Π½ΠΈΠ΅ дальшС ΠΏΠΎ Ρ†Π΅ΠΏΠΎΡ‡ΠΊΠ΅
409 // Π² случаС ошибки Π½ΡƒΠΆΠ½ΠΎ ΠΏΠ΅Ρ€Π΅Π΄Π°Ρ‚ΡŒ ΠΈΡΠΊΠ»ΡŽΡ‡Π΅Π½ΠΈΠ΅ дальшС ΠΏΠΎ Ρ†Π΅ΠΏΠΎΡ‡ΠΊΠ΅
389 chained.Reject(e);
410 chained.Reject(e);
390 };
411 };
391
412
392
413
393 AddHandler(
414 AddHandler(
394 resultHandler,
415 resultHandler,
395 errorHandler,
416 errorHandler,
396 chained.InternalCancel
417 chained.InternalCancel
397 );
418 );
398
419
399 return chained;
420 return chained;
400 }
421 }
401
422
402 public IPromise<TNew> Map<TNew>(ResultMapper<T, TNew> mapper) {
423 public IPromise<TNew> Map<TNew>(ResultMapper<T, TNew> mapper) {
403 return Map(mapper, null);
424 return Map(mapper, null);
404 }
425 }
405
426
406 /// <summary>
427 /// <summary>
407 /// БцСпляСт нСсколько аснхронных ΠΎΠΏΠ΅Ρ€Π°Ρ†ΠΈΠΉ. Указанная асинхронная опСрация Π±ΡƒΠ΄Π΅Ρ‚ Π²Ρ‹Π·Π²Π°Π½Π° послС
428 /// БцСпляСт нСсколько аснхронных ΠΎΠΏΠ΅Ρ€Π°Ρ†ΠΈΠΉ. Указанная асинхронная опСрация Π±ΡƒΠ΄Π΅Ρ‚ Π²Ρ‹Π·Π²Π°Π½Π° послС
408 /// выполнСния Ρ‚Π΅ΠΊΡƒΡ‰Π΅ΠΉ, Π° Ρ€Π΅Π·ΡƒΠ»ΡŒΡ‚Π°Ρ‚ Ρ‚Π΅ΠΊΡƒΡ‰Π΅ΠΉ ΠΎΠΏΠ΅Ρ€Π°Ρ†ΠΈΠΈ ΠΌΠΎΠΆΠ΅Ρ‚ Π±Ρ‹Ρ‚ΡŒ использован для ΠΈΠ½ΠΈΡ†ΠΈΠ°Π»ΠΈΠ·Π°Ρ†ΠΈΠΈ
429 /// выполнСния Ρ‚Π΅ΠΊΡƒΡ‰Π΅ΠΉ, Π° Ρ€Π΅Π·ΡƒΠ»ΡŒΡ‚Π°Ρ‚ Ρ‚Π΅ΠΊΡƒΡ‰Π΅ΠΉ ΠΎΠΏΠ΅Ρ€Π°Ρ†ΠΈΠΈ ΠΌΠΎΠΆΠ΅Ρ‚ Π±Ρ‹Ρ‚ΡŒ использован для ΠΈΠ½ΠΈΡ†ΠΈΠ°Π»ΠΈΠ·Π°Ρ†ΠΈΠΈ
409 /// Π½ΠΎΠ²ΠΎΠΉ ΠΎΠΏΠ΅Ρ€Π°Ρ†ΠΈΠΈ.
430 /// Π½ΠΎΠ²ΠΎΠΉ ΠΎΠΏΠ΅Ρ€Π°Ρ†ΠΈΠΈ.
410 /// </summary>
431 /// </summary>
411 /// <typeparam name="TNew">Π’ΠΈΠΏ Ρ€Π΅Π·ΡƒΠ»ΡŒΡ‚Π°Ρ‚Π° ΡƒΠΊΠ°Π·Π°Π½Π½ΠΎΠΉ асинхронной ΠΎΠΏΠ΅Ρ€Π°Ρ†ΠΈΠΈ.</typeparam>
432 /// <typeparam name="TNew">Π’ΠΈΠΏ Ρ€Π΅Π·ΡƒΠ»ΡŒΡ‚Π°Ρ‚Π° ΡƒΠΊΠ°Π·Π°Π½Π½ΠΎΠΉ асинхронной ΠΎΠΏΠ΅Ρ€Π°Ρ†ΠΈΠΈ.</typeparam>
412 /// <param name="chained">Асинхронная опСрация, которая Π΄ΠΎΠ»ΠΆΠ½Π° Π±ΡƒΠ΄Π΅Ρ‚ Π½Π°Ρ‡Π°Ρ‚ΡŒΡΡ послС выполнСния Ρ‚Π΅ΠΊΡƒΡ‰Π΅ΠΉ.</param>
433 /// <param name="chained">Асинхронная опСрация, которая Π΄ΠΎΠ»ΠΆΠ½Π° Π±ΡƒΠ΄Π΅Ρ‚ Π½Π°Ρ‡Π°Ρ‚ΡŒΡΡ послС выполнСния Ρ‚Π΅ΠΊΡƒΡ‰Π΅ΠΉ.</param>
413 /// <param name="error">ΠžΠ±Ρ€Π°Π±ΠΎΡ‚Ρ‡ΠΈΠΊ ошибки. Π”Π°Π½Π½Ρ‹ΠΉ ΠΎΠ±Ρ€Π°Π±ΠΎΡ‚Ρ‡ΠΈΠΊ ΠΏΠΎΠ»ΡƒΡ‡ΠΈΡ‚
434 /// <param name="error">ΠžΠ±Ρ€Π°Π±ΠΎΡ‚Ρ‡ΠΈΠΊ ошибки. Π”Π°Π½Π½Ρ‹ΠΉ ΠΎΠ±Ρ€Π°Π±ΠΎΡ‚Ρ‡ΠΈΠΊ ΠΏΠΎΠ»ΡƒΡ‡ΠΈΡ‚
414 /// ΠΈΡΠΊΠ»ΡŽΡ‡Π΅Π½ΠΈΠ΅ возникшСС ΠΏΡ€ΠΈ Π²Ρ‹ΠΏΠΎΠ»Π½Π΅Π½ΠΈΠΈ Ρ‚Π΅ΠΊΡƒΠ΅Ρ‰ΠΉ ΠΎΠΏΠ΅Ρ€Π°Ρ†ΠΈΠΈ.</param>
435 /// ΠΈΡΠΊΠ»ΡŽΡ‡Π΅Π½ΠΈΠ΅ возникшСС ΠΏΡ€ΠΈ Π²Ρ‹ΠΏΠΎΠ»Π½Π΅Π½ΠΈΠΈ Ρ‚Π΅ΠΊΡƒΠ΅Ρ‰ΠΉ ΠΎΠΏΠ΅Ρ€Π°Ρ†ΠΈΠΈ.</param>
415 /// <returns>НовоС ΠΎΠ±Π΅Ρ‰Π°Π½ΠΈΠ΅, ΠΊΠΎΡ‚ΠΎΡ€ΠΎΠ΅ Π±ΡƒΠ΄Π΅Ρ‚ Π²Ρ‹ΠΏΠΎΠ»Π½Π΅Π½ΠΎ ΠΏΠΎ ΠΎΠΊΠΎΠ½Ρ‡Π°Π½ΠΈΡŽ ΡƒΠΊΠ°Π·Π°Π½Π½ΠΎΠΉ аснхронной ΠΎΠΏΠ΅Ρ€Π°Ρ†ΠΈΠΈ.</returns>
436 /// <returns>НовоС ΠΎΠ±Π΅Ρ‰Π°Π½ΠΈΠ΅, ΠΊΠΎΡ‚ΠΎΡ€ΠΎΠ΅ Π±ΡƒΠ΄Π΅Ρ‚ Π²Ρ‹ΠΏΠΎΠ»Π½Π΅Π½ΠΎ ΠΏΠΎ ΠΎΠΊΠΎΠ½Ρ‡Π°Π½ΠΈΡŽ ΡƒΠΊΠ°Π·Π°Π½Π½ΠΎΠΉ аснхронной ΠΎΠΏΠ΅Ρ€Π°Ρ†ΠΈΠΈ.</returns>
416 public IPromise<TNew> Chain<TNew>(ChainedOperation<T, TNew> chained, ErrorHandler error) {
437 public IPromise<TNew> Chain<TNew>(ChainedOperation<T, TNew> chained, ErrorHandler error) {
417
438
418 // ΠΏΡ€ΠΎΠ±Π»Π΅ΠΌΠ° Π² Ρ‚ΠΎΠΌ, Ρ‡Ρ‚ΠΎ Π½Π° ΠΌΠΎΠΌΠ΅Π½Ρ‚ связывания Π΅Ρ‰Π΅ Π½Π΅ Π½Π°Ρ‡Π°Ρ‚Π° асинхронная опСрация, поэтому Π½ΡƒΠΆΠ½ΠΎ
439 // ΠΏΡ€ΠΎΠ±Π»Π΅ΠΌΠ° Π² Ρ‚ΠΎΠΌ, Ρ‡Ρ‚ΠΎ Π½Π° ΠΌΠΎΠΌΠ΅Π½Ρ‚ связывания Π΅Ρ‰Π΅ Π½Π΅ Π½Π°Ρ‡Π°Ρ‚Π° асинхронная опСрация, поэтому Π½ΡƒΠΆΠ½ΠΎ
419 // ΡΠΎΠ·Π΄Π°Ρ‚ΡŒ посрСдника, ΠΊ ΠΊΠΎΡ‚ΠΎΡ€ΠΎΠΌΡƒ Π±ΡƒΠ΄ΡƒΡ‚ ΠΏΠΎΠ΄Π²Ρ‹Π·ΡΠ²Π°Ρ‚ΡŒΡΡ ΡΠ»Π΅Π΄ΡƒΡŽΡ‰ΠΈΠ΅ ΠΎΠ±Ρ€Π°Π±ΠΎΡ‚Ρ‡ΠΈΠΊΠΈ.
440 // ΡΠΎΠ·Π΄Π°Ρ‚ΡŒ посрСдника, ΠΊ ΠΊΠΎΡ‚ΠΎΡ€ΠΎΠΌΡƒ Π±ΡƒΠ΄ΡƒΡ‚ ΠΏΠΎΠ΄Π²Ρ‹Π·ΡΠ²Π°Ρ‚ΡŒΡΡ ΡΠ»Π΅Π΄ΡƒΡŽΡ‰ΠΈΠ΅ ΠΎΠ±Ρ€Π°Π±ΠΎΡ‚Ρ‡ΠΈΠΊΠΈ.
420 // ΠΊΠΎΠ³Π΄Π° Π±ΡƒΠ΄Π΅Ρ‚ Π²Ρ‹ΠΏΠΎΠ»Π½Π΅Π½Π° Ρ€Π΅Π°Π»ΡŒΠ½Π°Ρ асинхронная опСрация, ΠΎΠ½Π° ΠΎΠ±Ρ€Π°Ρ‚ΠΈΡ‚ΡŒΡΡ ΠΊ посрСднику, Ρ‡Ρ‚ΠΎΠ±Ρ‹
441 // ΠΊΠΎΠ³Π΄Π° Π±ΡƒΠ΄Π΅Ρ‚ Π²Ρ‹ΠΏΠΎΠ»Π½Π΅Π½Π° Ρ€Π΅Π°Π»ΡŒΠ½Π°Ρ асинхронная опСрация, ΠΎΠ½Π° ΠΎΠ±Ρ€Π°Ρ‚ΠΈΡ‚ΡŒΡΡ ΠΊ посрСднику, Ρ‡Ρ‚ΠΎΠ±Ρ‹
421 // ΠΏΠ΅Ρ€Π΅Π΄Π°Ρ‚ΡŒ Ρ‡Π΅Ρ€Π΅Π· Π½Π΅Π³ΠΎ Ρ€Π΅Π·ΡƒΠ»ΡŒΡ‚Π°Ρ‚Ρ‹ Ρ€Π°Π±ΠΎΡ‚Ρ‹.
442 // ΠΏΠ΅Ρ€Π΅Π΄Π°Ρ‚ΡŒ Ρ‡Π΅Ρ€Π΅Π· Π½Π΅Π³ΠΎ Ρ€Π΅Π·ΡƒΠ»ΡŒΡ‚Π°Ρ‚Ρ‹ Ρ€Π°Π±ΠΎΡ‚Ρ‹.
422 var medium = new Promise<TNew>(this, true);
443 var medium = new Promise<TNew>(this, true);
423
444
424 ResultHandler<T> resultHandler = delegate(T result) {
445 ResultHandler<T> resultHandler = delegate(T result) {
425 if (medium.IsCancelled)
446 if (medium.IsCancelled)
426 return;
447 return;
427
448
428 var promise = chained(result);
449 var promise = chained(result);
429
450
430 // notify chained operation that it's not needed
431 medium.Cancelled(() => promise.Cancel());
432 promise.Then(
451 promise.Then(
433 x => medium.Resolve(x),
452 x => medium.Resolve(x),
434 e => medium.Reject(e)
453 e => medium.Reject(e)
435 );
454 );
455
456 // notify chained operation that it's not needed anymore
457 // порядок Π²Ρ‹Π·ΠΎΠ²Π° Then, Cancelled Π²Π°ΠΆΠ΅Π½, ΠΏΠΎΡΠΊΠΎΠ»ΡŒΠΊΡƒ ΠΎΡ‚ этого
458 // зависит IsExclusive
459 medium.Cancelled(() => {
460 if(promise.IsExclusive)
461 promise.Cancel();
462 });
463
464 // внСшняя ΠΎΡ‚ΠΌΠ΅Π½Π° связанной ΠΎΠΏΠ΅Ρ€Π°Ρ†ΠΈΠΈ рассматриваСтся ΠΊΠ°ΠΊ ошибка
465 promise.Cancelled(() => medium.Reject(new OperationCanceledException()));
436 };
466 };
437
467
438 ErrorHandler errorHandler = delegate(Exception e) {
468 ErrorHandler errorHandler = delegate(Exception e) {
439 if (error != null)
469 if (error != null)
440 error(e);
470 error(e);
441 // Π² случаС ошибки Π½ΡƒΠΆΠ½ΠΎ ΠΏΠ΅Ρ€Π΅Π΄Π°Ρ‚ΡŒ ΠΈΡΠΊΠ»ΡŽΡ‡Π΅Π½ΠΈΠ΅ дальшС ΠΏΠΎ Ρ†Π΅ΠΏΠΎΡ‡ΠΊΠ΅
471 // Π² случаС ошибки Π½ΡƒΠΆΠ½ΠΎ ΠΏΠ΅Ρ€Π΅Π΄Π°Ρ‚ΡŒ ΠΈΡΠΊΠ»ΡŽΡ‡Π΅Π½ΠΈΠ΅ дальшС ΠΏΠΎ Ρ†Π΅ΠΏΠΎΡ‡ΠΊΠ΅
442 medium.Reject(e);
472 medium.Reject(e);
443 };
473 };
444
474
445 AddHandler(
475 AddHandler(
446 resultHandler,
476 resultHandler,
447 errorHandler,
477 errorHandler,
448 medium.InternalCancel
478 medium.InternalCancel
449 );
479 );
450
480
451 return medium;
481 return medium;
452 }
482 }
453
483
454 public IPromise<TNew> Chain<TNew>(ChainedOperation<T, TNew> chained) {
484 public IPromise<TNew> Chain<TNew>(ChainedOperation<T, TNew> chained) {
455 return Chain(chained, null);
485 return Chain(chained, null);
456 }
486 }
457
487
458 public IPromise<T> Cancelled(Action handler) {
488 public IPromise<T> Cancelled(Action handler) {
459 AddHandler(null, null, handler);
489 AddHandler(null, null, handler);
460 return this;
490 return this;
461 }
491 }
462
492
463 /// <summary>
493 /// <summary>
464 /// Adds the specified handler for all cases (success, error, cancel)
494 /// Adds the specified handler for all cases (success, error, cancel)
465 /// </summary>
495 /// </summary>
466 /// <param name="handler">The handler that will be called anyway</param>
496 /// <param name="handler">The handler that will be called anyway</param>
467 /// <returns>self</returns>
497 /// <returns>self</returns>
468 public IPromise<T> Finally(Action handler) {
498 public IPromise<T> Finally(Action handler) {
469 if (handler == null)
499 if (handler == null)
470 throw new ArgumentNullException("handler");
500 throw new ArgumentNullException("handler");
471 AddHandler(
501 AddHandler(
472 x => handler(),
502 x => handler(),
473 e => handler(),
503 e => handler(),
474 handler
504 handler
475 );
505 );
476 return this;
506 return this;
477 }
507 }
478
508
479 /// <summary>
509 /// <summary>
480 /// ΠŸΡ€Π΅ΠΎΠ±Ρ€Π°Π·ΡƒΠ΅Ρ‚ Ρ€Π΅Π·ΡƒΠ»ΡŒΡ‚Π°Ρ‚ обСщания ΠΊ Π½ΡƒΠΆΠ½ΠΎΠΌΡƒ Ρ‚ΠΈΠΏΡƒ
510 /// ΠŸΡ€Π΅ΠΎΠ±Ρ€Π°Π·ΡƒΠ΅Ρ‚ Ρ€Π΅Π·ΡƒΠ»ΡŒΡ‚Π°Ρ‚ обСщания ΠΊ Π½ΡƒΠΆΠ½ΠΎΠΌΡƒ Ρ‚ΠΈΠΏΡƒ
481 /// </summary>
511 /// </summary>
482 /// <typeparam name="T2"></typeparam>
512 /// <typeparam name="T2"></typeparam>
483 /// <returns></returns>
513 /// <returns></returns>
484 public IPromise<T2> Cast<T2>() {
514 public IPromise<T2> Cast<T2>() {
485 return Map(x => (T2)(object)x, null);
515 return Map(x => (T2)(object)x, null);
486 }
516 }
487
517
488 /// <summary>
518 /// <summary>
489 /// ДоТидаСтся ΠΎΡ‚Π»ΠΎΠΆΠ΅Π½Π½ΠΎΠ³ΠΎ обСщания ΠΈ Π² случаС успСха, Π²ΠΎΠ·Π²Ρ€Π°Ρ‰Π°Π΅Ρ‚
519 /// ДоТидаСтся ΠΎΡ‚Π»ΠΎΠΆΠ΅Π½Π½ΠΎΠ³ΠΎ обСщания ΠΈ Π² случаС успСха, Π²ΠΎΠ·Π²Ρ€Π°Ρ‰Π°Π΅Ρ‚
490 /// Π΅Π³ΠΎ, Ρ€Π΅Π·ΡƒΠ»ΡŒΡ‚Π°Ρ‚, Π² ΠΏΡ€ΠΎΡ‚ΠΈΠ²Π½ΠΎΠΌ случаС бросаСт ΠΈΡΠΊΠ»ΡŽΡ‡Π΅Π½ΠΈΠ΅.
520 /// Π΅Π³ΠΎ, Ρ€Π΅Π·ΡƒΠ»ΡŒΡ‚Π°Ρ‚, Π² ΠΏΡ€ΠΎΡ‚ΠΈΠ²Π½ΠΎΠΌ случаС бросаСт ΠΈΡΠΊΠ»ΡŽΡ‡Π΅Π½ΠΈΠ΅.
491 /// </summary>
521 /// </summary>
492 /// <remarks>
522 /// <remarks>
493 /// <para>
523 /// <para>
494 /// Если ΠΎΠΆΠΈΠ΄Π°Π½ΠΈΠ΅ обСщания Π±Ρ‹Π»ΠΎ ΠΏΡ€Π΅Ρ€Π²Π°Π½ΠΎ ΠΏΠΎ Ρ‚Π°ΠΉΠΌΠ°ΡƒΡ‚Ρƒ, это Π½Π΅ Π·Π½Π°Ρ‡ΠΈΡ‚,
524 /// Если ΠΎΠΆΠΈΠ΄Π°Π½ΠΈΠ΅ обСщания Π±Ρ‹Π»ΠΎ ΠΏΡ€Π΅Ρ€Π²Π°Π½ΠΎ ΠΏΠΎ Ρ‚Π°ΠΉΠΌΠ°ΡƒΡ‚Ρƒ, это Π½Π΅ Π·Π½Π°Ρ‡ΠΈΡ‚,
495 /// Ρ‡Ρ‚ΠΎ ΠΎΠ±Π΅Ρ‰Π°Π½ΠΈΠ΅ Π±Ρ‹Π»ΠΎ ΠΎΡ‚ΠΌΠ΅Π½Π΅Π½ΠΎ ΠΈΠ»ΠΈ Ρ‡Ρ‚ΠΎ-Ρ‚ΠΎ Π² этом Ρ€ΠΎΠ΄Π΅, это Ρ‚ΠΎΠ»ΡŒΠΊΠΎ
525 /// Ρ‡Ρ‚ΠΎ ΠΎΠ±Π΅Ρ‰Π°Π½ΠΈΠ΅ Π±Ρ‹Π»ΠΎ ΠΎΡ‚ΠΌΠ΅Π½Π΅Π½ΠΎ ΠΈΠ»ΠΈ Ρ‡Ρ‚ΠΎ-Ρ‚ΠΎ Π² этом Ρ€ΠΎΠ΄Π΅, это Ρ‚ΠΎΠ»ΡŒΠΊΠΎ
496 /// ΠΎΠ·Π½Π°Ρ‡Π°Π΅Ρ‚, Ρ‡Ρ‚ΠΎ ΠΌΡ‹ Π΅Π³ΠΎ Π½Π΅ доТдались, ΠΎΠ΄Π½Π°ΠΊΠΎ всС зарСгистрированныС
526 /// ΠΎΠ·Π½Π°Ρ‡Π°Π΅Ρ‚, Ρ‡Ρ‚ΠΎ ΠΌΡ‹ Π΅Π³ΠΎ Π½Π΅ доТдались, ΠΎΠ΄Π½Π°ΠΊΠΎ всС зарСгистрированныС
497 /// ΠΎΠ±Ρ€Π°Π±ΠΎΡ‚Ρ‡ΠΈΠΊΠΈ, ΠΊΠ°ΠΊ Π±Ρ‹Π»ΠΈ Ρ‚Π°ΠΊ ΠΎΡΡ‚Π°Π»ΠΈΡΡŒ ΠΈ ΠΎΠ½ΠΈ Π±ΡƒΠ΄ΡƒΡ‚ Π²Ρ‹Π·Π²Π°Π½Ρ‹, ΠΊΠΎΠ³Π΄Π°
527 /// ΠΎΠ±Ρ€Π°Π±ΠΎΡ‚Ρ‡ΠΈΠΊΠΈ, ΠΊΠ°ΠΊ Π±Ρ‹Π»ΠΈ Ρ‚Π°ΠΊ ΠΎΡΡ‚Π°Π»ΠΈΡΡŒ ΠΈ ΠΎΠ½ΠΈ Π±ΡƒΠ΄ΡƒΡ‚ Π²Ρ‹Π·Π²Π°Π½Ρ‹, ΠΊΠΎΠ³Π΄Π°
498 /// ΠΎΠ±Π΅Ρ‰Π°Π½ΠΈΠ΅ Π±ΡƒΠ΄Π΅Ρ‚ Π²Ρ‹ΠΏΠΎΠ»Π½Π΅Π½ΠΎ.
528 /// ΠΎΠ±Π΅Ρ‰Π°Π½ΠΈΠ΅ Π±ΡƒΠ΄Π΅Ρ‚ Π²Ρ‹ΠΏΠΎΠ»Π½Π΅Π½ΠΎ.
499 /// </para>
529 /// </para>
500 /// <para>
530 /// <para>
501 /// Π’Π°ΠΊΠΎΠ΅ ΠΏΠΎΠ²Π΅Π΄Π΅Π½ΠΈΠ΅ Π²ΠΏΠΎΠ»Π½Π΅ ΠΎΠΏΡ€Π°Π²Π΄Π°Π½ΠΎ ΠΏΠΎΡΠΊΠΎΠ»ΡŒΠΊΡƒ Ρ‚Π°ΠΉΠΌΠ°ΡƒΡ‚ ΠΌΠΎΠΆΠ΅Ρ‚ ΠΈΡΡ‚Π΅Ρ‡ΡŒ
531 /// Π’Π°ΠΊΠΎΠ΅ ΠΏΠΎΠ²Π΅Π΄Π΅Π½ΠΈΠ΅ Π²ΠΏΠΎΠ»Π½Π΅ ΠΎΠΏΡ€Π°Π²Π΄Π°Π½ΠΎ ΠΏΠΎΡΠΊΠΎΠ»ΡŒΠΊΡƒ Ρ‚Π°ΠΉΠΌΠ°ΡƒΡ‚ ΠΌΠΎΠΆΠ΅Ρ‚ ΠΈΡΡ‚Π΅Ρ‡ΡŒ
502 /// Π² Ρ‚ΠΎΡ‚ ΠΌΠΎΠΌΠ΅Π½Ρ‚, ΠΊΠΎΠ³Π΄Π° Π½Π°Ρ‡Π°Π»Π°ΡΡŒ ΠΎΠ±Ρ€Π°Π±ΠΎΡ‚ΠΊΠ° Ρ†Π΅ΠΏΠΎΡ‡ΠΊΠΈ ΠΎΠ±Ρ€Π°Π±ΠΎΡ‚Ρ‡ΠΈΠΊΠΎΠ², ΠΈ
532 /// Π² Ρ‚ΠΎΡ‚ ΠΌΠΎΠΌΠ΅Π½Ρ‚, ΠΊΠΎΠ³Π΄Π° Π½Π°Ρ‡Π°Π»Π°ΡΡŒ ΠΎΠ±Ρ€Π°Π±ΠΎΡ‚ΠΊΠ° Ρ†Π΅ΠΏΠΎΡ‡ΠΊΠΈ ΠΎΠ±Ρ€Π°Π±ΠΎΡ‚Ρ‡ΠΈΠΊΠΎΠ², ΠΈ
503 /// ΠΊ Ρ‚ΠΎΠΌΡƒ ΠΆΠ΅ Ρ‚Π΅ΠΊΡƒΡ‰Π΅Π΅ ΠΎΠ±Π΅Ρ‰Π°Π½ΠΈΠ΅ ΠΌΠΎΠΆΠ΅Ρ‚ ΡΡ‚ΠΎΡΡ‚ΡŒ Π² Ρ†Π΅ΠΏΠΎΡ‡ΠΊΠ΅ ΠΎΠ±Π΅Ρ‰Π°Π½ΠΈΠΉ ΠΈ Π΅Π³ΠΎ
533 /// ΠΊ Ρ‚ΠΎΠΌΡƒ ΠΆΠ΅ Ρ‚Π΅ΠΊΡƒΡ‰Π΅Π΅ ΠΎΠ±Π΅Ρ‰Π°Π½ΠΈΠ΅ ΠΌΠΎΠΆΠ΅Ρ‚ ΡΡ‚ΠΎΡΡ‚ΡŒ Π² Ρ†Π΅ΠΏΠΎΡ‡ΠΊΠ΅ ΠΎΠ±Π΅Ρ‰Π°Π½ΠΈΠΉ ΠΈ Π΅Π³ΠΎ
504 /// ΠΎΡ‚ΠΊΠ»ΠΎΠ½Π΅Π½ΠΈΠ΅ ΠΌΠΎΠΆΠ΅Ρ‚ привСсти ΠΊ Π½Π΅ΠΏΡ€ΠΎΠ³Π½ΠΎΠ·ΠΈΡ€ΡƒΠ΅ΠΌΠΎΠΌΡƒ Ρ€Π΅Π·ΡƒΠ»ΡŒΡ‚Π°Ρ‚Ρƒ.
534 /// ΠΎΡ‚ΠΊΠ»ΠΎΠ½Π΅Π½ΠΈΠ΅ ΠΌΠΎΠΆΠ΅Ρ‚ привСсти ΠΊ Π½Π΅ΠΏΡ€ΠΎΠ³Π½ΠΎΠ·ΠΈΡ€ΡƒΠ΅ΠΌΠΎΠΌΡƒ Ρ€Π΅Π·ΡƒΠ»ΡŒΡ‚Π°Ρ‚Ρƒ.
505 /// </para>
535 /// </para>
506 /// </remarks>
536 /// </remarks>
507 /// <param name="timeout">ВрСмя оТидания</param>
537 /// <param name="timeout">ВрСмя оТидания</param>
508 /// <returns>Π Π΅Π·ΡƒΠ»ΡŒΡ‚Π°Ρ‚ выполнСния обСщания</returns>
538 /// <returns>Π Π΅Π·ΡƒΠ»ΡŒΡ‚Π°Ρ‚ выполнСния обСщания</returns>
509 public T Join(int timeout) {
539 public T Join(int timeout) {
510 var evt = new ManualResetEvent(false);
540 var evt = new ManualResetEvent(false);
511 Anyway(() => evt.Set());
541 Anyway(() => evt.Set());
512 Cancelled(() => evt.Set());
542 Cancelled(() => evt.Set());
513
543
514 if (!evt.WaitOne(timeout, true))
544 if (!evt.WaitOne(timeout, true))
515 throw new TimeoutException();
545 throw new TimeoutException();
516
546
517 switch (m_state) {
547 switch (m_state) {
518 case SucceededState:
548 case SucceededState:
519 return m_result;
549 return m_result;
520 case CancelledState:
550 case CancelledState:
521 throw new OperationCanceledException();
551 throw new OperationCanceledException();
522 case RejectedState:
552 case RejectedState:
523 throw new TargetInvocationException(m_error);
553 throw new TargetInvocationException(m_error);
524 default:
554 default:
525 throw new ApplicationException(String.Format("Invalid promise state {0}", m_state));
555 throw new ApplicationException(String.Format("Invalid promise state {0}", m_state));
526 }
556 }
527 }
557 }
528
558
529 public T Join() {
559 public T Join() {
530 return Join(Timeout.Infinite);
560 return Join(Timeout.Infinite);
531 }
561 }
532
562
533 void AddHandler(ResultHandler<T> success, ErrorHandler error, Action cancel) {
563 void AddHandler(ResultHandler<T> success, ErrorHandler error, Action cancel) {
534 Interlocked.Increment(ref m_childrenCount);
564 if (success != null || error != null)
565 Interlocked.Increment(ref m_childrenCount);
535
566
536 HandlerDescriptor handler = new HandlerDescriptor {
567 HandlerDescriptor handler = new HandlerDescriptor {
537 resultHandler = success,
568 resultHandler = success,
538 errorHandler = error,
569 errorHandler = error,
539 cancellHandler = cancel
570 cancellHandler = cancel
540 };
571 };
541
572
542 bool queued;
573 bool queued;
543
574
544 if (!IsResolved) {
575 if (!IsResolved) {
545 m_handlers.Enqueue(handler);
576 m_handlers.Enqueue(handler);
546 queued = true;
577 queued = true;
547 } else {
578 } else {
548 // the promise is in resolved state, just invoke the handled with minimum overhead
579 // the promise is in resolved state, just invoke the handled with minimum overhead
549 queued = false;
580 queued = false;
550 InvokeHandler(handler);
581 InvokeHandler(handler);
551 }
582 }
552
583
553 if (queued && IsResolved && m_handlers.TryDequeue(out handler))
584 if (queued && IsResolved && m_handlers.TryDequeue(out handler))
554 // if the promise have been resolved while we was adding handler to the queue
585 // if the promise have been resolved while we was adding handler to the queue
555 // we can't guarantee that someone is still processing it
586 // we can't guarantee that someone is still processing it
556 // therefore we will fetch a handler from the queue and execute it
587 // therefore we will fetch a handler from the queue and execute it
557 // note that fetched handler may be not the one that we have added
588 // note that fetched handler may be not the one that we have added
558 // even we can fetch no handlers at all :)
589 // even we can fetch no handlers at all :)
559 InvokeHandler(handler);
590 InvokeHandler(handler);
560 }
591 }
561
592
562 protected virtual void InvokeHandler(HandlerDescriptor handler) {
593 protected virtual void InvokeHandler(HandlerDescriptor handler) {
563 switch (m_state) {
594 switch (m_state) {
564 case SucceededState:
595 case SucceededState:
565 handler.Resolve(m_result);
596 handler.Resolve(m_result);
566 break;
597 break;
567 case RejectedState:
598 case RejectedState:
568 handler.Reject(m_error);
599 handler.Reject(m_error);
569 break;
600 break;
570 case CancelledState:
601 case CancelledState:
571 handler.Cancel();
602 handler.Cancel();
572 break;
603 break;
573 default:
604 default:
574 // do nothing
605 // do nothing
575 return;
606 return;
576 }
607 }
577 }
608 }
578
609
579 protected virtual void OnStateChanged() {
610 protected virtual void OnStateChanged() {
580 HandlerDescriptor handler;
611 HandlerDescriptor handler;
581 while (m_handlers.TryDequeue(out handler))
612 while (m_handlers.TryDequeue(out handler))
582 InvokeHandler(handler);
613 InvokeHandler(handler);
583 }
614 }
584
615
585 public bool IsExclusive {
616 public bool IsExclusive {
586 get {
617 get {
587 return m_childrenCount <= 1;
618 return m_childrenCount <= 1;
588 }
619 }
589 }
620 }
590
621
591 protected bool Cancel(bool dependencies) {
592 if (BeginTransit()) {
593 CompleteTransit(CancelledState);
594 OnStateChanged();
595
596 if (dependencies && m_parent != null && m_parent.IsExclusive)
597 m_parent.Cancel();
598
599 return true;
600 } else {
601 return false;
602 }
603 }
604
605 /// <summary>
622 /// <summary>
606 /// ΠžΠ±ΡŠΠ΅Π΄ΠΈΠ½ΡΠ΅Ρ‚ нСсколько ΠΎΠ±Π΅Ρ‰Π°Π½ΠΈΠΉ Π² ΠΎΠ΄Π½ΠΎ, Ρ€Π΅Π·ΡƒΠ»ΡŒΡ‚Π°Ρ‚ΠΎΠΌ ΠΊΠΎΡ‚ΠΎΡ€ΠΎΠ³ΠΎ являСтся массив Ρ€Π΅Π·ΡƒΠ»ΡŒΡ‚Π°Ρ‚ΠΎΠ² Π΄Ρ€ΡƒΠ³ΠΈΡ… ΠΎΠ±Π΅Ρ‰Π°Π½ΠΈΠΉ.
623 /// ΠžΠ±ΡŠΠ΅Π΄ΠΈΠ½ΡΠ΅Ρ‚ нСсколько ΠΎΠ±Π΅Ρ‰Π°Π½ΠΈΠΉ Π² ΠΎΠ΄Π½ΠΎ, Ρ€Π΅Π·ΡƒΠ»ΡŒΡ‚Π°Ρ‚ΠΎΠΌ ΠΊΠΎΡ‚ΠΎΡ€ΠΎΠ³ΠΎ являСтся массив Ρ€Π΅Π·ΡƒΠ»ΡŒΡ‚Π°Ρ‚ΠΎΠ² Π΄Ρ€ΡƒΠ³ΠΈΡ… ΠΎΠ±Π΅Ρ‰Π°Π½ΠΈΠΉ.
607 /// Если хотябы ΠΎΠ΄Π½ΠΎ ΠΈΠ· ΠΏΠ΅Ρ€Π΅Π΄Π°Π½Π½Ρ‹Ρ… ΠΎΠ±Π΅Ρ‰Π°Π½ΠΈΠΉ Π½Π΅ Π±ΡƒΠ΄Π΅Ρ‚ Π²Ρ‹ΠΏΠΎΠ»Π½Π΅Π½ΠΎ, Ρ‚ΠΎ Π½ΠΎΠ²ΠΎΠ΅ ΠΎΠ±Π΅Ρ‰Π΅Π½ΠΈΠ΅ Ρ‚ΠΎΠΆΠ΅ Π½Π΅ Π±ΡƒΠ΄Π΅Ρ‚ Π²Ρ‹ΠΏΠΎΠ»Π½Π΅Π½ΠΎ.
624 /// Если хотябы ΠΎΠ΄Π½ΠΎ ΠΈΠ· ΠΏΠ΅Ρ€Π΅Π΄Π°Π½Π½Ρ‹Ρ… ΠΎΠ±Π΅Ρ‰Π°Π½ΠΈΠΉ Π½Π΅ Π±ΡƒΠ΄Π΅Ρ‚ Π²Ρ‹ΠΏΠΎΠ»Π½Π΅Π½ΠΎ, Ρ‚ΠΎ Π½ΠΎΠ²ΠΎΠ΅ ΠΎΠ±Π΅Ρ‰Π΅Π½ΠΈΠ΅ Ρ‚ΠΎΠΆΠ΅ Π½Π΅ Π±ΡƒΠ΄Π΅Ρ‚ Π²Ρ‹ΠΏΠΎΠ»Π½Π΅Π½ΠΎ.
608 /// ΠŸΡ€ΠΈ ΠΎΡ‚ΠΌΠ΅Π½Π΅ Π½ΠΎΠ²ΠΎΠ³ΠΎ обСщания, ΠΏΠ΅Ρ€Π΅Π΄Π°Π½Π½Ρ‹Π΅ обСщания Ρ‚Π°ΠΊΠΆΠ΅ Π±ΡƒΠ΄ΡƒΡ‚ ΠΎΡ‚ΠΌΠ΅Π½Π΅Π½Ρ‹, Ссли Π½ΠΈΠΊΡ‚ΠΎ большС Π½Π° Π½ΠΈΡ… Π½Π΅ подписан.
625 /// ΠŸΡ€ΠΈ ΠΎΡ‚ΠΌΠ΅Π½Π΅ Π½ΠΎΠ²ΠΎΠ³ΠΎ обСщания, ΠΏΠ΅Ρ€Π΅Π΄Π°Π½Π½Ρ‹Π΅ обСщания Ρ‚Π°ΠΊΠΆΠ΅ Π±ΡƒΠ΄ΡƒΡ‚ ΠΎΡ‚ΠΌΠ΅Π½Π΅Π½Ρ‹, Ссли Π½ΠΈΠΊΡ‚ΠΎ большС Π½Π° Π½ΠΈΡ… Π½Π΅ подписан.
609 /// </summary>
626 /// </summary>
610 /// <param name="promises">Бписок ΠΎΠ±Π΅Ρ‰Π°Π½ΠΈΠΉ. Если список пустой, Ρ‚ΠΎ Ρ€Π΅Π·ΡƒΠ»ΡŒΡ‚ΠΈΡ€ΡƒΡŽΡ‰Π΅Π΅ ΠΎΠ±Π΅Ρ‰Π°Π½ΠΈΠ΅ возвращаСтся ΡƒΠΆΠ΅ Π²Ρ‹ΠΏΠΎΠ»Π½Π΅Π½Π½Ρ‹ΠΌ.</param>
627 /// <param name="promises">Бписок ΠΎΠ±Π΅Ρ‰Π°Π½ΠΈΠΉ. Если список пустой, Ρ‚ΠΎ Ρ€Π΅Π·ΡƒΠ»ΡŒΡ‚ΠΈΡ€ΡƒΡŽΡ‰Π΅Π΅ ΠΎΠ±Π΅Ρ‰Π°Π½ΠΈΠ΅ возвращаСтся ΡƒΠΆΠ΅ Π²Ρ‹ΠΏΠΎΠ»Π½Π΅Π½Π½Ρ‹ΠΌ.</param>
611 /// <returns>ΠžΠ±Π΅Ρ‰Π°Π½ΠΈΠ΅ ΠΎΠ±ΡŠΠ΅Π΄ΠΈΠ½ΡΡŽΡ‰Π΅Π΅ Π² сСбС Ρ€Π΅Π·ΡƒΠ»ΡŒΡ‚Π°Ρ‚ ΠΏΠ΅Ρ€Π΅Π΄Π°Π½Π½Ρ‹Ρ… ΠΎΠ±Π΅Ρ‰Π°Π½ΠΈΠΉ.</returns>
628 /// <returns>ΠžΠ±Π΅Ρ‰Π°Π½ΠΈΠ΅ ΠΎΠ±ΡŠΠ΅Π΄ΠΈΠ½ΡΡŽΡ‰Π΅Π΅ Π² сСбС Ρ€Π΅Π·ΡƒΠ»ΡŒΡ‚Π°Ρ‚ ΠΏΠ΅Ρ€Π΅Π΄Π°Π½Π½Ρ‹Ρ… ΠΎΠ±Π΅Ρ‰Π°Π½ΠΈΠΉ.</returns>
612 /// <exception cref="ArgumentNullException"><paramref name="promises"/> Π½Π΅ ΠΌΠΎΠΆΠ΅Ρ‚ Π±Ρ‹Ρ‚ΡŒ null</exception>
629 /// <exception cref="ArgumentNullException"><paramref name="promises"/> Π½Π΅ ΠΌΠΎΠΆΠ΅Ρ‚ Π±Ρ‹Ρ‚ΡŒ null</exception>
613 public static IPromise<T[]> CreateComposite(IList<IPromise<T>> promises) {
630 public static IPromise<T[]> CreateComposite(IList<IPromise<T>> promises) {
614 if (promises == null)
631 if (promises == null)
615 throw new ArgumentNullException();
632 throw new ArgumentNullException();
616
633
617 // создаСм аккумулятор для Ρ€Π΅Π·ΡƒΠ»ΡŒΡ‚Π°Ρ‚ΠΎΠ² ΠΈ Ρ€Π΅Π·ΡƒΠ»ΡŒΡ‚ΠΈΡ€ΡƒΡŽΡ‰Π΅Π΅ ΠΎΠ±Π΅Ρ‰Π°Π½ΠΈΠ΅
634 // создаСм аккумулятор для Ρ€Π΅Π·ΡƒΠ»ΡŒΡ‚Π°Ρ‚ΠΎΠ² ΠΈ Ρ€Π΅Π·ΡƒΠ»ΡŒΡ‚ΠΈΡ€ΡƒΡŽΡ‰Π΅Π΅ ΠΎΠ±Π΅Ρ‰Π°Π½ΠΈΠ΅
618 var result = new T[promises.Count];
635 var result = new T[promises.Count];
619 var promise = new Promise<T[]>();
636 var promise = new Promise<T[]>();
620
637
621 // special case
638 // special case
622 if (promises.Count == 0) {
639 if (promises.Count == 0) {
623 promise.Resolve(result);
640 promise.Resolve(result);
624 return promise;
641 return promise;
625 }
642 }
626
643
627 int pending = promises.Count;
644 int pending = promises.Count;
628
645
629 for (int i = 0; i < promises.Count; i++) {
646 for (int i = 0; i < promises.Count; i++) {
630 var dest = i;
647 var dest = i;
631
648
632 promises[i].Then(
649 if (promises[i] != null) {
633 x => {
650 promises[i].Then(
634 result[dest] = x;
651 x => {
635 if(Interlocked.Decrement(ref pending) == 0)
652 result[dest] = x;
636 promise.Resolve(result);
653 if (Interlocked.Decrement(ref pending) == 0)
637 },
654 promise.Resolve(result);
638 e => promise.Reject(e)
655 },
639 );
656 e => promise.Reject(e)
657 );
658 } else {
659 if (Interlocked.Decrement(ref pending) == 0)
660 promise.Resolve(result);
661 }
640 }
662 }
641
663
642 promise.Cancelled(
664 promise.Cancelled(
643 () => {
665 () => {
644 foreach(var d in promises)
666 foreach (var d in promises)
645 if(d.IsExclusive)
667 if (d != null && d.IsExclusive)
646 d.Cancel();
668 d.Cancel();
647 }
669 }
648 );
670 );
649
671
650 return promise;
672 return promise;
651 }
673 }
652
674
675 /// <summary>
676 /// ΠžΠ±ΡŠΠ΅Π΄ΠΈΠ½ΡΠ΅Ρ‚ нСсколько ΠΎΠ±Π΅Ρ‰Π°Π½ΠΈΠΉ Π² ΠΎΠ΄Π½ΠΎ. Π Π΅Π·ΡƒΠ»ΡŒΡ‚ΠΈΡ€ΡƒΡŽΡ‰Π΅Π΅ ΠΎΠ±Π΅Ρ‰Π°Π½ΠΈΠ΅ Π±ΡƒΠ΄Π΅Ρ‚ Π²Ρ‹ΠΏΠΎΠ»Π½Π΅Π½ΠΎ ΠΏΡ€ΠΈ
677 /// Π²Ρ‹ΠΏΠΎΠ»Π½Π΅Π½ΠΈΠΈ всСх ΡƒΠΊΠ°Π·Π°Π½Π½Ρ‹Ρ… ΠΎΠ±Π΅Ρ‰Π°Π½ΠΈΠΉ. ΠŸΡ€ΠΈ этом Π²ΠΎΠ·Π²Ρ€Π°Ρ‰Π°Π΅ΠΌΡ‹Π΅ значСния ΠΏΠ΅Ρ€Π²ΠΈΡ‡Π½Ρ‹Ρ… ΠΎΠ±Π΅Ρ‰Π°Π½ΠΈΠΉ
678 /// ΠΈΠ³Π½ΠΎΡ€ΠΈΡ€ΡƒΡŽΡ‚ΡΡ.
679 /// </summary>
680 /// <param name="promises">ΠšΠΎΠ»Π»Π΅ΠΊΡ†ΠΈΡ ΠΏΠ΅Ρ€Π²ΠΈΡ‡Π½Ρ‹Ρ… ΠΎΠ±Π΅Ρ‰Π°Π½ΠΈΠΉ, ΠΊΠΎΡ‚ΠΎΡ€Ρ‹Π΅ Π±ΡƒΠ΄ΡƒΡ‚ ΠΎΠ±ΡŠΠ΅Π΄Π΅Π½Π΅Π½Ρ‹ Π² ΠΎΠ΄Π½ΠΎ.</param>
681 /// <returns>НовоС ΠΎΠ±Π΅Ρ‰Π°Π½ΠΈΠ΅, ΠΎΠ±ΡŠΠ΅Π΄ΠΈΠ½ΡΡŽΡ‰Π΅Π΅ Π² сСбС ΠΏΠ΅Ρ€Π΅Π΄Π°Π½Π½Ρ‹Π΅.</returns>
682 /// <remarks>
683 /// Если Π² ΠΊΠΎΠ»Π»Π΅ΠΊΡ†ΠΈΠΈ Π²ΡΡ‚Ρ€Π΅Ρ‡Π°ΡŽΡŒΡΡ <c>null</c>, Ρ‚ΠΎ ΠΎΠ½ΠΈ Π²ΠΎΡΠΏΡ€ΠΈΠ½ΠΈΠΌΠ°ΡŽΡ‚ΡΡ ΠΊΠ°ΠΊ Π²Ρ‹ΠΏΠΎΠ»Π½Π΅Π½Π½Ρ‹Π΅ обСщания.
684 /// </remarks>
685 public static IPromiseBase CreateComposite(ICollection<IPromiseBase> promises) {
686 if (promises == null)
687 throw new ArgumentNullException();
688 if (promises.Count == 0)
689 return Promise<object>.ResultToPromise(null);
690
691 int countdown = promises.Count;
692
693 var result = new Promise<object>();
694
695 foreach (var d in promises) {
696 if (d == null) {
697 if (Interlocked.Decrement(ref countdown) == 0)
698 result.Resolve(null);
699 } else {
700 d.Then(() => {
701 if (Interlocked.Decrement(ref countdown) == 0)
702 result.Resolve(null);
703 });
704 }
705 }
706
707 result.Cancelled(() => {
708 foreach (var d in promises)
709 if (d != null && d.IsExclusive)
710 d.Cancel();
711 });
712
713 return result;
714 }
715
653 public static Promise<T> ResultToPromise(T result) {
716 public static Promise<T> ResultToPromise(T result) {
654 var p = new Promise<T>();
717 var p = new Promise<T>();
655 p.Resolve(result);
718 p.Resolve(result);
656 return p;
719 return p;
657 }
720 }
658
721
659 public static Promise<T> ExceptionToPromise(Exception error) {
722 public static Promise<T> ExceptionToPromise(Exception error) {
660 if (error == null)
723 if (error == null)
661 throw new ArgumentNullException();
724 throw new ArgumentNullException();
662
725
663 var p = new Promise<T>();
726 var p = new Promise<T>();
664 p.Reject(error);
727 p.Reject(error);
665 return p;
728 return p;
666 }
729 }
667
730
731 #region IPromiseBase explicit implementation
732
733 IPromiseBase IPromiseBase.Error(ErrorHandler error) {
734 return Error(error);
735 }
736
737 IPromiseBase IPromiseBase.Anyway(Action handler) {
738 return Anyway(handler);
739 }
740
741 IPromiseBase IPromiseBase.Finally(Action handler) {
742 return Finally(handler);
743 }
744
745 IPromiseBase IPromiseBase.Cancelled(Action handler) {
746 return Cancelled(handler);
747 }
748
749 void IPromiseBase.Join() {
750 Join();
751 }
752
753 void IPromiseBase.Join(int timeout) {
754 Join(timeout);
755 }
756
757 #endregion
758
759
760
668 }
761 }
669 }
762 }
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