GitLab

I think it's time to move a lot of the peer-to-peer networking
but-not-ipfs-specific things into its own package: p2p.
This could in the future be split off into its own library.
The first thing to go is the peer.

this is a major refactor of the entire codebase
it changes the monolithic peer.Peer into using
a peer.ID and a peer.Peerstore.

Other changes:
- removed handshake3.
-	testutil vastly simplified peer
-	secio bugfix + debugging logs
-	testutil: RandKeyPair
-	backpressure bugfix: w.o.w.
-	peer: added hex enc/dec
-	peer: added a PeerInfo struct
  PeerInfo is a small struct used to pass around a peer with
 	a set of addresses and keys. This is not meant to be a
 	complete view of the system, but rather to model updates to
 	the peerstore. It is used by things like the routing system.
-	updated peer/queue + peerset
-	latency metrics
-	testutil: use crand for PeerID gen
 	RandPeerID generates random "valid" peer IDs. it does not
 	NEED to generate keys because it is as if we lost the key
 	right away. fine to read some randomness and hash it. to
 	generate proper keys and an ID, use:
 	  sk, pk, _ := testutil.RandKeyPair()
 	  id, _ := peer.IDFromPublicKey(pk)
 	Also added RandPeerIDFatal helper
- removed old spipe
- updated seccat
- core: cleanup initIdentity
- removed old getFromPeerList

License: MIT
Signed-off-by: Brian Tiger Chow <brian@perfmode.com>

@whyrusleeping may wanna have a look and make sure i didn't screw
anything up here

BenchmarkInstantaneousAddCat1MB-4            200          10763761 ns/op
97.42 MB/s
BenchmarkInstantaneousAddCat2MB-4       panic: runtime error: invalid
memory address or nil pointer dereference
[signal 0xb code=0x1 addr=0x0 pc=0xbedd]

goroutine 14297 [running]:
github.com/jbenet/go-ipfs/exchange/bitswap/decision.(*taskQueue).Remove(0xc2087553a0,
        0xc2085ef200, 0x22, 0x56f570, 0xc208367a40)
    /Users/btc/go/src/github.com/jbenet/go-ipfs/exchange/bitswap/decision/taskqueue.go:66
    +0x82
github.com/jbenet/go-ipfs/exchange/bitswap/decision.(*Engine).MessageSent(0xc20871b5c0,
        0x56f570, 0xc208367a40, 0x570040, 0xc208753d40, 0x0, 0x0)
    /Users/btc/go/src/github.com/jbenet/go-ipfs/exchange/bitswap/decision/engine.go:177
    +0x29e
github.com/jbenet/go-ipfs/exchange/bitswap.(*bitswap).send(0xc20871b7a0,
        0x56f4d8, 0xc208379800, 0x56f570, 0xc208367a40,
        0x570040, 0xc208753d40, 0x0, 0x0)
    /Users/btc/go/src/github.com/jbenet/go-ipfs/exchange/bitswap/bitswap.go:352
    +0x11c
github.com/jbenet/go-ipfs/exchange/bitswap.(*bitswap).taskWorker(0xc20871b7a0,
        0x56f4d8, 0xc208379800)
    /Users/btc/go/src/github.com/jbenet/go-ipfs/exchange/bitswap/bitswap.go:238
    +0x165
    created by
    github.com/jbenet/go-ipfs/exchange/bitswap.New
    /Users/btc/go/src/github.com/jbenet/go-ipfs/exchange/bitswap/bitswap.go:66
    +0x49e

License: MIT
Signed-off-by: Brian Tiger Chow <brian@perfmode.com>

License: MIT
Signed-off-by: Brian Tiger Chow <brian@perfmode.com>

License: MIT
Signed-off-by: Brian Tiger Chow <brian@perfmode.com>

addresses https://github.com/jbenet/go-ipfs/pull/438#discussion_r21953742

License: MIT
Signed-off-by: Brian Tiger Chow <brian@perfmode.com>

License: MIT
Signed-off-by: Brian Tiger Chow <brian@perfmode.com>

License: MIT
Signed-off-by: Brian Tiger Chow <brian@perfmode.com>

this opens up the possibility of having multiple queues. And for all
outgoing messages to be managed by the decision engine

License: MIT
Signed-off-by: Brian Tiger Chow <brian@perfmode.com>

License: MIT
Signed-off-by: Brian Tiger Chow <brian@perfmode.com>

License: MIT
Signed-off-by: Brian Tiger Chow <brian@perfmode.com>