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implab » ImplabNet
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implemented nonblocking wake singnals processing
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r22:5a35900264f5 promises
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@@ -103,15 +103,15 namespace Implab.Test {
103
103
104 Assert.AreEqual(5, pool.PoolSize);
104 Assert.AreEqual(5, pool.PoolSize);
105
105
106 pool.Invoke(() => { Thread.Sleep(1000000); return 10; });
106 pool.Invoke(() => { Thread.Sleep(100000000); return 10; });
107 pool.Invoke(() => { Thread.Sleep(1000000); return 10; });
107 pool.Invoke(() => { Thread.Sleep(100000000); return 10; });
108 pool.Invoke(() => { Thread.Sleep(1000000); 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(1000000); return 10; });
113 pool.Invoke(() => { Thread.Sleep(100000000); return 10; });
114 Thread.Sleep(100);
114 Thread.Sleep(200);
115 Assert.AreEqual(10, pool.PoolSize);
115 Assert.AreEqual(10, pool.PoolSize);
116
116
117 pool.Dispose();
117 pool.Dispose();
@@ -244,7 +244,7 namespace Implab.Test {
244 [TestMethod]
244 [TestMethod]
245 public void ChainedMapTest() {
245 public void ChainedMapTest() {
246
246
247 using (var pool = new WorkerPool(0,100,1)) {
247 using (var pool = new WorkerPool(4,4,0)) {
248 int count = 10000;
248 int count = 10000;
249
249
250 double[] args = new double[count];
250 double[] args = new double[count];
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@@ -83,14 +83,42 namespace Implab.Parallels {
83 return signals;
83 return signals;
84 }
84 }
85
85
86 bool FetchSignalOrWait(int timeout) {
87 var start = Environment.TickCount;
88
89 // ΠΎΠ·Π½Π°Ρ‡Π°Π΅Ρ‚, Ρ‡Ρ‚ΠΎ ΠΏΠΎΡ‚ΠΎΠΊ Π²Π»Π°Π΄Π΅Π΅Ρ‚ Π±Π»ΠΎΠΊΠΈΡ€ΠΎΠ²ΠΊΠΎΠΉ ΠΈ ΠΏΡ€ΠΈ ΡƒΡΠΏΠ΅ΡˆΠ½ΠΎΠΌ ΠΏΠΎΠ»ΡƒΡ‡Π΅Π½ΠΈΠΈ сигнала Π΄ΠΎΠ»ΠΆΠ΅Π½
90 // Π΅Π΅ Π²Π΅Ρ€Π½ΡƒΡ‚ΡŒ, Ρ‡Ρ‚ΠΎΠ±Ρ‹ Π΄Ρ€ΡƒΠ³ΠΎΠΉ ΠΎΠΆΠΈΠ΄Π°ΡŽΡ‰ΠΈΠΉ ΠΏΠΎΡ‚ΠΎΠΊ смог
91 bool hasLock = false;
92 do {
93 int signals;
94 do {
95 signals = m_wakeEvents;
96 if (signals == 0)
97 break;
98 } while (Interlocked.CompareExchange(ref m_wakeEvents, signals - 1, signals) != signals);
99
100 if (signals >= 1) {
101 if (signals > 1 && hasLock)
102 m_hasTasks.Set();
103 return true;
104 }
105
106 if (timeout != -1)
107 timeout = Math.Max(0, timeout - (Environment.TickCount - start));
108
109 // Ссли сигналов большС Π½Π΅ ΠΎΡΡ‚Π°Π»ΠΎΡΡŒ, Ρ‚ΠΎ ΠΏΠ΅Ρ€Π²Ρ‹ΠΉ ΠΏΠΎΡ‚ΠΎΠΊ, ΠΊΠΎΡ‚ΠΎΡ€Ρ‹ΠΉ дошСл сюда сбросит событиС
110 // ΠΈ ΡƒΠΉΠ΄Π΅Ρ‚ Π½Π° пустой Ρ†ΠΈΠΊΠ», послС Ρ‡Π΅Π³ΠΎ заблокируСтся
111
112 hasLock = true;
113 } while (m_hasTasks.WaitOne(timeout));
114
115 return false;
116 }
117
86 bool Sleep(int timeout) {
118 bool Sleep(int timeout) {
87 Interlocked.Increment(ref m_sleepingThreads);
119 Interlocked.Increment(ref m_sleepingThreads);
88 if (m_hasTasks.WaitOne(timeout)) {
120 if (FetchSignalOrWait(timeout)) {
89 // this is autoreset event, only one thread can run this block simultaneously
121 Interlocked.Decrement(ref m_sleepingThreads);
90 var sleeping = Interlocked.Decrement(ref m_sleepingThreads);
91 if (Interlocked.Decrement(ref m_wakeEvents) > 0)
92 m_hasTasks.Set(); // wake next worker
93
94 return true;
122 return true;
95 } else {
123 } else {
96 Interlocked.Decrement(ref m_sleepingThreads);
124 Interlocked.Decrement(ref m_sleepingThreads);
@@ -106,6 +134,8 namespace Implab.Parallels {
106 if (m_exitRequired != 0)
134 if (m_exitRequired != 0)
107 return;
135 return;
108 if (m_sleepingThreads > m_wakeEvents) {
136 if (m_sleepingThreads > m_wakeEvents) {
137 //Console.WriteLine("Waking threads (sleeps {0}, pending {1})", m_sleepingThreads, m_wakeEvents);
138
109 // all sleeping threads may gone
139 // all sleeping threads may gone
110 SignalThread(); // wake a sleeping thread;
140 SignalThread(); // wake a sleeping thread;
111
141
@@ -130,8 +160,6 namespace Implab.Parallels {
130 bool last;
160 bool last;
131 bool requestExit;
161 bool requestExit;
132
162
133
134
135 // if threads have a timeout before releasing
163 // if threads have a timeout before releasing
136 if (m_releaseTimeout > 0)
164 if (m_releaseTimeout > 0)
137 requestExit = !Sleep(m_releaseTimeout);
165 requestExit = !Sleep(m_releaseTimeout);
@@ -242,8 +270,8 namespace Implab.Parallels {
242
270
243 void Worker() {
271 void Worker() {
244 TUnit unit;
272 TUnit unit;
273 //Console.WriteLine("{0}: Active", Thread.CurrentThread.ManagedThreadId);
245 Interlocked.Increment(ref m_activeThreads);
274 Interlocked.Increment(ref m_activeThreads);
246 Sleep(0); // remove wake request if the new thread is started
247 do {
275 do {
248 // exit if requested
276 // exit if requested
249 if (m_exitRequired != 0) {
277 if (m_exitRequired != 0) {
@@ -269,10 +297,10 namespace Implab.Parallels {
269 // keep this thread and wait
297 // keep this thread and wait
270 if (!Suspend())
298 if (!Suspend())
271 break;
299 break;
272
300 //Console.WriteLine("{0}: Awake", Thread.CurrentThread.ManagedThreadId);
273 Interlocked.Increment(ref m_activeThreads);
301 Interlocked.Increment(ref m_activeThreads);
274 } while (true);
302 } while (true);
275
303 //Console.WriteLine("{0}: Exited", Thread.CurrentThread.ManagedThreadId);
276 }
304 }
277
305
278 protected virtual void Dispose(bool disposing) {
306 protected virtual void Dispose(bool disposing) {
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