73 lines
2.5 KiB
Go
73 lines
2.5 KiB
Go
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// Copyright 2017-2021 DERO Project. All rights reserved.
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// Use of this source code in any form is governed by RESEARCH license.
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// license can be found in the LICENSE file.
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// GPG: 0F39 E425 8C65 3947 702A 8234 08B2 0360 A03A 9DE8
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//
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
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// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
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// THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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// STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
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// THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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package p2p
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//import "fmt"
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//import "net"
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import "sync/atomic"
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import "time"
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//import "container/list"
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import "github.com/romana/rlog"
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import "github.com/vmihailenco/msgpack"
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//import "github.com/deroproject/derosuite/crypto"
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//import "github.com/deroproject/derosuite/globals"
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// reads our data, length prefix blocks
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func (connection *Connection) Send_TimedSync(request bool) {
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var sync Sync_Struct
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fill_common(&sync.Common) // fill common info
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sync.Command = V2_COMMAND_SYNC
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sync.Request = request
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serialized, err := msgpack.Marshal(&sync) // serialize and send
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if err != nil {
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panic(err)
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}
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if request { // queue command that we are expecting a response
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//connection.Lock()
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connection.request_time.Store(time.Now())
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//connection.Unlock()
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}
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//rlog.Tracef(2, "Timed sync sent successfully %s", connection.logid)
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connection.Send_Message(serialized)
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}
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// handles incoming timed syncs
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func (connection *Connection) Handle_TimedSync(buf []byte) {
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var sync Sync_Struct
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err := msgpack.Unmarshal(buf, &sync)
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if err != nil {
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rlog.Warnf("Error while decoding incoming chain request err %s %s", err, connection.logid)
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connection.Exit()
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return
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}
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//rlog.Tracef(2, "Timed sync received %s", connection.logid)
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if sync.Request {
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connection.Send_TimedSync(false) // send it as response
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} else { // this is a response for our request track latency
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//connection.Lock()
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atomic.StoreInt64(&connection.Latency, int64(time.Now().Sub(connection.request_time.Load().(time.Time))/2)) // divide by 2 is for round-trip
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//connection.Unlock()
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}
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}
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