public void Writable()
{
var epoll = EPoll.Create();
var pipePair1 = PipeEnd.CreatePair(blocking: true);
EPollEvent[] events;
PosixResult result;
events = PollEvents(epoll, maxEvents: 10, timeout: 0);
Assert.Equal(0, events.Length);
// Register pipePair1 for writable
result = epoll.TryControl(EPollOperation.Add, pipePair1.WriteEnd, EPollEvents.Writable, new EPollData()
{
Long = 0x0102030405060708L
});
Assert.True(result.IsSuccess);
// Writable
events = PollEvents(epoll, maxEvents: 10, timeout: 0);
Assert.Equal(1, events.Length);
Assert.Equal(EPollEvents.Writable, events[0].Events);
Assert.Equal(0x0102030405060708L, events[0].Data.Long);
epoll.Dispose();
Dispose(pipePair1);
}
public void Error()
{
var epoll = EPoll.Create();
var pipePair1 = PipeEnd.CreatePair(blocking: true);
EPollEvent[] events;
PosixResult result;
events = PollEvents(epoll, maxEvents: 10, timeout: 0);
Assert.Equal(0, events.Length);
// Close the read end
pipePair1.ReadEnd.Dispose();
// Register pipePair1 for readable
result = epoll.TryControl(EPollOperation.Add, pipePair1.WriteEnd, EPollEvents.Writable, new EPollData());
Assert.True(result.IsSuccess);
// Poll returns Writable, Error
events = PollEvents(epoll, maxEvents: 10, timeout: 0);
Assert.Equal(1, events.Length);
Assert.Equal(EPollEvents.Writable | EPollEvents.Error, events[0].Events);
epoll.Dispose();
pipePair1.WriteEnd.Dispose();
}
public void Delete()
{
var epoll = EPoll.Create();
var pipePair1 = PipeEnd.CreatePair(blocking: true);
EPollEvent[] events;
PosixResult result;
// Register pipePair1 for writable
result = epoll.TryControl(EPollOperation.Add, pipePair1.WriteEnd, EPollEvents.Writable, new EPollData());
Assert.True(result.IsSuccess);
// Poll indicates writable
events = PollEvents(epoll, maxEvents: 10, timeout: 0);
Assert.Equal(1, events.Length);
// Unregister
result = epoll.TryControl(EPollOperation.Delete, pipePair1.WriteEnd, EPollEvents.None, new EPollData());
// Flush pending
events = PollEvents(epoll, maxEvents: 10, timeout: 0);
// Poll no longer returns writable
events = PollEvents(epoll, maxEvents: 10, timeout: 0);
Assert.Equal(0, events.Length);
epoll.Dispose();
Dispose(pipePair1);
}
public void OneShotAndModify()
{
var epoll = EPoll.Create();
var pipePair1 = PipeEnd.CreatePair(blocking: true);
EPollEvent[] events;
PosixResult result;
// Register pipePair1 for readable with OneShot
result = epoll.TryControl(EPollOperation.Add, pipePair1.WriteEnd, EPollEvents.Writable | EPollEvents.OneShot, new EPollData());
Assert.True(result.IsSuccess);
// Poll indicates writable
events = PollEvents(epoll, maxEvents: 10, timeout: 0);
Assert.Equal(1, events.Length);
// OneShot, no longer writable
events = PollEvents(epoll, maxEvents: 10, timeout: 0);
Assert.Equal(0, events.Length);
// Rearm without OneShot
result = epoll.TryControl(EPollOperation.Modify, pipePair1.WriteEnd, EPollEvents.Writable, new EPollData());
// Poll indicates writable
events = PollEvents(epoll, maxEvents: 10, timeout: 0);
Assert.Equal(1, events.Length);
// Event triggered (i.e. no OneShot), still writable
events = PollEvents(epoll, maxEvents: 10, timeout: 0);
Assert.Equal(1, events.Length);
epoll.Dispose();
Dispose(pipePair1);
}
public void MaxEvents()
{
var epoll = EPoll.Create();
var pipePair1 = PipeEnd.CreatePair(blocking: true);
var pipePair2 = PipeEnd.CreatePair(blocking: true);
EPollEvent[] events;
PosixResult result;
events = PollEvents(epoll, maxEvents: 10, timeout: 0);
Assert.Equal(0, events.Length);
// Register pipePair1 for writable
result = epoll.TryControl(EPollOperation.Add, pipePair1.WriteEnd, EPollEvents.Writable, new EPollData());
Assert.True(result.IsSuccess);
// Add pipePair2
result = epoll.TryControl(EPollOperation.Add, pipePair2.WriteEnd, EPollEvents.Writable, new EPollData());
Assert.True(result.IsSuccess);
// Poll with maxEvents 1
events = PollEvents(epoll, maxEvents: 1, timeout: 0);
Assert.Equal(1, events.Length);
epoll.Dispose();
Dispose(pipePair1);
Dispose(pipePair2);
}
public void CreateAndDispose()
{
var pair = PipeEnd.CreatePair(blocking: true);
var readEnd = pair.ReadEnd;
var writeEnd = pair.WriteEnd;
Assert.NotNull(readEnd);
Assert.NotNull(writeEnd);
Assert.True(!readEnd.IsInvalid);
Assert.True(!writeEnd.IsInvalid);
readEnd.Dispose();
writeEnd.Dispose();
}
public void NonBlockingRead()
{
var pair = PipeEnd.CreatePair(blocking: false);
var readEnd = pair.ReadEnd;
var writeEnd = pair.WriteEnd;
var receiveBytes = new byte[] { 0, 0, 0, 0, 0 };
var readResult = readEnd.TryRead(new ArraySegment <byte>(receiveBytes, 1, 4));
Assert.True(readResult == PosixResult.EAGAIN);
// Clean-up
readEnd.Dispose();
writeEnd.Dispose();
}
public void MultipleEvents()
{
var epoll = EPoll.Create();
var pipePair1 = PipeEnd.CreatePair(blocking: true);
var pipePair2 = PipeEnd.CreatePair(blocking: true);
EPollEvent[] events;
PosixResult result;
events = PollEvents(epoll, maxEvents: 10, timeout: 0);
Assert.Equal(0, events.Length);
// Register pipePair1 for writable
result = epoll.TryControl(EPollOperation.Add, pipePair1.WriteEnd, EPollEvents.Writable, new EPollData()
{
Long = 0x0102030405060708L
});
Assert.True(result.IsSuccess);
// Add pipePair2
result = epoll.TryControl(EPollOperation.Add, pipePair2.WriteEnd, EPollEvents.Writable, new EPollData()
{
Long = 0x0807060504030201L
});
Assert.True(result.IsSuccess);
// Poll
events = PollEvents(epoll, maxEvents: 10, timeout: 0);
Assert.Equal(2, events.Length);
Assert.Equal(EPollEvents.Writable, events[0].Events);
Assert.Equal(EPollEvents.Writable, events[1].Events);
var datas = new long[] { 0x0102030405060708L, 0x0807060504030201L };
Assert.Contains(events[0].Data.Long, datas);
Assert.Contains(events[1].Data.Long, datas);
Assert.NotEqual(events[0].Data.Long, events[1].Data.Long);
epoll.Dispose();
Dispose(pipePair1);
Dispose(pipePair2);
}
public void WriteAndRead()
{
var pair = PipeEnd.CreatePair(blocking: true);
var readEnd = pair.ReadEnd;
var writeEnd = pair.WriteEnd;
// Write
var writeBytes = new byte[] { 1, 2, 3 };
var writeResult = writeEnd.TryWrite(new ArraySegment <byte>(writeBytes));
Assert.True(writeResult.IsSuccess);
// Read
var receiveBytes = new byte[] { 0, 0, 0, 0, 0 };
var readResult = readEnd.TryRead(new ArraySegment <byte>(receiveBytes, 1, 4));
Assert.True(readResult.IsSuccess);
Assert.Equal(3, readResult.Value);
Assert.Equal(new byte[] { 0, 1, 2, 3, 0 }, receiveBytes);
// Clean-up
readEnd.Dispose();
writeEnd.Dispose();
}