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network: introduce peer sending queues

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Two queues for high-priority and ordinary messages. Fixes #590. These queues
are deliberately made small to avoid buffer bloat problem, there is gonna be
another queueing layer above them to compensate for that. The queues are
designed to be synchronous in enqueueing, async capabilities are to be added
layer above later.
This commit is contained in:
Roman Khimov 2020-01-16 21:16:31 +03:00
parent 7f0882767c
commit 0ba6b2a754
6 changed files with 173 additions and 53 deletions
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8
pkg/network/tcp_peer_test.go
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@ -30,8 +30,8 @@ func TestPeerHandshake(t *testing.T) {
require.Equal(t, false, tcpC.Handshaked())
// No ordinary messages can be written.
require.Error(t, tcpS.WriteMsg(&Message{}))
require.Error(t, tcpC.WriteMsg(&Message{}))
require.Error(t, tcpS.EnqueueMessage(&Message{}))
require.Error(t, tcpC.EnqueueMessage(&Message{}))
// Try to mess with VersionAck on both client and server, it should fail.
require.Error(t, tcpS.SendVersionAck(&Message{}))
@ -80,6 +80,6 @@ func TestPeerHandshake(t *testing.T) {
require.Error(t, tcpS.SendVersionAck(&Message{}))
// Now regular messaging can proceed.
require.NoError(t, tcpS.WriteMsg(&Message{}))
require.NoError(t, tcpC.WriteMsg(&Message{}))
require.NoError(t, tcpS.EnqueueMessage(&Message{}))
require.NoError(t, tcpC.EnqueueMessage(&Message{}))
}