github.com/deroproject/derosuite@v2.1.6-1.0.20200307070847-0f2e589c7a2b+incompatible/p2p/peer.go (about)

     1  // Copyright 2017-2018 DERO Project. All rights reserved.
     2  // Use of this source code in any form is governed by RESEARCH license.
     3  // license can be found in the LICENSE file.
     4  // GPG: 0F39 E425 8C65 3947 702A  8234 08B2 0360 A03A 9DE8
     5  //
     6  //
     7  // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
     8  // EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
     9  // MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
    10  // THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
    11  // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
    12  // PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
    13  // INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
    14  // STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
    15  // THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
    16  
    17  package p2p
    18  
    19  //import "net"
    20  //import "sync"
    21  //import "time"
    22  import "crypto/rand"
    23  import "encoding/binary"
    24  
    25  //import "path/filepath"
    26  //import "container/list"
    27  
    28  //import log "github.com/sirupsen/logrus"
    29  //import "github.com/vmihailenco/msgpack"
    30  
    31  //import "github.com/deroproject/derosuite/crypto"
    32  //import "github.com/deroproject/derosuite/globals"
    33  
    34  //import "github.com/deroproject/derosuite/blockchain"
    35  
    36  // This file defines  what all needs to be responded to become a server ( handling incoming requests)
    37  
    38  var peerid uint64
    39  var node_tag string
    40  
    41  // get peer id
    42  // we make a peer id randomly at every program start
    43  // first call to this will give you a unique peer id
    44  func GetPeerID() uint64 {
    45  	if peerid == 0 {
    46  		var buf [8]byte
    47  		rand.Read(buf[:])
    48  		peerid = binary.LittleEndian.Uint64(buf[:])
    49  	}
    50  	return peerid
    51  }