public void BeginReadIsBlockingNextRead()
{
byte[] readBytes = new byte[5];
byte[] readBytes2 = new byte[3];
var wh = new ManualResetEvent(false);
var end = new ManualResetEvent(false);
using (var testStream = new SignaledMemoryStream(testStreamData, wh)) {
var res = testStream.BeginRead(readBytes, 0, 5, null, null);
bool blocking = true;
ThreadPool.QueueUserWorkItem(l => {
var res2 = testStream.BeginRead(readBytes2, 0, 3, null, null);
blocking = false;
Assert.IsTrue(res2.AsyncWaitHandle.WaitOne(2000), "#10");
Assert.IsTrue(res2.IsCompleted, "#11");
Assert.AreEqual(3, testStream.EndRead(res2), "#12");
Assert.AreEqual(95, readBytes2[0], "#13");
end.Set();
});
Assert.IsFalse(res.IsCompleted, "#1");
Thread.Sleep(500); // Lame but don't know how to wait for another BeginRead which does not return
Assert.IsTrue(blocking, "#2");
wh.Set();
Assert.IsTrue(res.AsyncWaitHandle.WaitOne(2000), "#3");
Assert.IsTrue(res.IsCompleted, "#4");
Assert.AreEqual(5, testStream.EndRead(res), "#5");
Assert.IsTrue(end.WaitOne(2000), "#6");
Assert.AreEqual(100, readBytes[0], "#7");
}
}
public void BeginReadIsBlockingNextRead()
{
byte[] readBytes = new byte[5];
byte[] readBytes2 = new byte[3];
ManualResetEvent begin_read_unblock = new ManualResetEvent(false);
ManualResetEvent begin_read_blocking = new ManualResetEvent(false);
Task begin_read_task = null;
try {
using (var testStream = new SignaledMemoryStream(testStreamData, begin_read_unblock)) {
IAsyncResult begin_read_1_ares = testStream.BeginRead(readBytes, 0, 5, null, null);
begin_read_task = Task.Factory.StartNew(() => {
IAsyncResult begin_read_2_ares = testStream.BeginRead(readBytes2, 0, 3, null, null);
begin_read_blocking.Set();
Assert.IsTrue(begin_read_2_ares.AsyncWaitHandle.WaitOne(2000), "#10");
Assert.IsTrue(begin_read_2_ares.IsCompleted, "#11");
Assert.AreEqual(3, testStream.EndRead(begin_read_2_ares), "#12");
Assert.AreEqual(95, readBytes2[0], "#13");
});
Assert.IsFalse(begin_read_1_ares.IsCompleted, "#1");
Assert.IsFalse(begin_read_blocking.WaitOne(500), "#2");
begin_read_unblock.Set();
Assert.IsTrue(begin_read_1_ares.AsyncWaitHandle.WaitOne(2000), "#3");
Assert.IsTrue(begin_read_1_ares.IsCompleted, "#4");
Assert.AreEqual(5, testStream.EndRead(begin_read_1_ares), "#5");
Assert.IsTrue(begin_read_task.Wait(2000), "#6");
Assert.AreEqual(100, readBytes[0], "#7");
}
} finally {
if (begin_read_task != null)
{
begin_read_task.Wait();
}
}
}
public void BeginReadAsync()
{
byte[] readBytes = new byte[5];
var wh = new ManualResetEvent(false);
using (var testStream = new SignaledMemoryStream(testStreamData, wh)) {
var res = testStream.BeginRead(readBytes, 0, 5, null, null);
Assert.IsFalse(res.IsCompleted, "#1");
Assert.IsFalse(res.CompletedSynchronously, "#2");
wh.Set();
Assert.IsTrue(res.AsyncWaitHandle.WaitOne(2000), "#3");
Assert.IsTrue(res.IsCompleted, "#4");
Assert.AreEqual(5, testStream.EndRead(res), "#5");
}
wh.Close();
}
public void BeginRead_BeginWrite()
{
byte[] readBytes = new byte[5];
byte[] readBytes2 = new byte[3] {
1, 2, 3
};
ManualResetEvent begin_read_unblock = new ManualResetEvent(false);
ManualResetEvent begin_write_blocking = new ManualResetEvent(false);
Task begin_write_task = null;
try {
using (MemoryStream stream = new SignaledMemoryStream(testStreamData, begin_read_unblock)) {
IAsyncResult begin_read_ares = stream.BeginRead(readBytes, 0, 5, null, null);
begin_write_task = Task.Factory.StartNew(() => {
var begin_write_ares = stream.BeginWrite(readBytes2, 0, 3, null, null);
begin_write_blocking.Set();
Assert.IsTrue(begin_write_ares.AsyncWaitHandle.WaitOne(2000), "#10");
Assert.IsTrue(begin_write_ares.IsCompleted, "#11");
stream.EndWrite(begin_write_ares);
});
Assert.IsFalse(begin_read_ares.IsCompleted, "#1");
Assert.IsFalse(begin_write_blocking.WaitOne(500), "#2");
begin_read_unblock.Set();
Assert.IsTrue(begin_read_ares.AsyncWaitHandle.WaitOne(2000), "#3");
Assert.IsTrue(begin_read_ares.IsCompleted, "#4");
Assert.AreEqual(5, stream.EndRead(begin_read_ares), "#5");
Assert.IsTrue(begin_write_task.Wait(2000), "#6");
}
} finally {
if (begin_write_task != null)
{
begin_write_task.Wait();
}
}
}
public void BeginRead_BeginWrite ()
{
byte[] readBytes = new byte[5];
byte[] readBytes2 = new byte[3] { 1, 2, 3 };
var wh = new ManualResetEvent (false);
var end = new ManualResetEvent (false);
using (var testStream = new SignaledMemoryStream (testStreamData, wh)) {
var res = testStream.BeginRead (readBytes, 0, 5, null, null);
bool blocking = true;
ThreadPool.QueueUserWorkItem (l => {
var res2 = testStream.BeginWrite (readBytes2, 0, 3, null, null);
blocking = false;
Assert.IsTrue (res2.AsyncWaitHandle.WaitOne (2000), "#10");
Assert.IsTrue (res2.IsCompleted, "#11");
testStream.EndWrite (res2);
end.Set ();
});
Assert.IsFalse (res.IsCompleted, "#1");
Thread.Sleep (500); // Lame but don't know how to wait for another BeginWrite which does not return
Assert.IsTrue (blocking, "#2");
wh.Set ();
Assert.IsTrue (res.AsyncWaitHandle.WaitOne (2000), "#3");
Assert.IsTrue (res.IsCompleted, "#4");
Assert.AreEqual (5, testStream.EndRead (res), "#5");
Assert.IsTrue (end.WaitOne (2000), "#6");
}
}
public void BeginRead_Read ()
{
byte[] readBytes = new byte[5];
var wh = new ManualResetEvent (false);
using (var testStream = new SignaledMemoryStream (testStreamData, wh)) {
var res = testStream.BeginRead (readBytes, 0, 5, null, null);
Assert.AreEqual (100, testStream.ReadByte (), "#0");
Assert.IsFalse (res.IsCompleted, "#1");
Assert.IsFalse (res.CompletedSynchronously, "#2");
wh.Set ();
Assert.IsTrue (res.AsyncWaitHandle.WaitOne (2000), "#3");
Assert.IsTrue (res.IsCompleted, "#4");
Assert.AreEqual (5, testStream.EndRead (res), "#5");
Assert.AreEqual (99, readBytes [0], "#6");
}
wh.Close ();
}