From 2c27ab205c992d3387574aa6d57780744d35d36f Mon Sep 17 00:00:00 2001
From: "Jason A. Donenfeld" <Jason@zx2c4.com>
Date: Sun, 13 May 2018 18:23:40 +0200
Subject: Rework index hashtable

---
 index.go | 100 ---------------------------------------------------------------
 1 file changed, 100 deletions(-)
 delete mode 100644 index.go

(limited to 'index.go')

diff --git a/index.go b/index.go
deleted file mode 100644
index 4a78d55..0000000
--- a/index.go
+++ /dev/null
@@ -1,100 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0
- *
- * Copyright (C) 2017-2018 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
- */
-
-package main
-
-import (
-	"crypto/rand"
-	"encoding/binary"
-	"sync"
-)
-
-/* Index=0 is reserved for unset indecies
- *
- */
-
-type IndexTableEntry struct {
-	peer      *Peer
-	handshake *Handshake
-	keyPair   *Keypair
-}
-
-type IndexTable struct {
-	mutex sync.RWMutex
-	table map[uint32]IndexTableEntry
-}
-
-func randUint32() (uint32, error) {
-	var buff [4]byte
-	_, err := rand.Read(buff[:])
-	value := binary.LittleEndian.Uint32(buff[:])
-	return value, err
-}
-
-func (table *IndexTable) Init() {
-	table.mutex.Lock()
-	table.table = make(map[uint32]IndexTableEntry)
-	table.mutex.Unlock()
-}
-
-func (table *IndexTable) Delete(index uint32) {
-	if index == 0 {
-		return
-	}
-	table.mutex.Lock()
-	delete(table.table, index)
-	table.mutex.Unlock()
-}
-
-func (table *IndexTable) Insert(key uint32, value IndexTableEntry) {
-	table.mutex.Lock()
-	table.table[key] = value
-	table.mutex.Unlock()
-}
-
-func (table *IndexTable) NewIndex(peer *Peer) (uint32, error) {
-	for {
-		// generate random index
-
-		index, err := randUint32()
-		if err != nil {
-			return index, err
-		}
-		if index == 0 {
-			continue
-		}
-
-		// check if index used
-
-		table.mutex.RLock()
-		_, ok := table.table[index]
-		table.mutex.RUnlock()
-		if ok {
-			continue
-		}
-
-		// map index to handshake
-
-		table.mutex.Lock()
-		_, found := table.table[index]
-		if found {
-			table.mutex.Unlock()
-			continue
-		}
-		table.table[index] = IndexTableEntry{
-			peer:      peer,
-			handshake: &peer.handshake,
-			keyPair:   nil,
-		}
-		table.mutex.Unlock()
-		return index, nil
-	}
-}
-
-func (table *IndexTable) Lookup(id uint32) IndexTableEntry {
-	table.mutex.RLock()
-	defer table.mutex.RUnlock()
-	return table.table[id]
-}
-- 
cgit v1.2.3-59-g8ed1b