path: root/test_p2p_stress/main.go

package main

// #cgo CFLAGS: -I${SRCDIR}/../salticidae/include/
// #cgo LDFLAGS: ${SRCDIR}/../salticidae/libsalticidae.so -Wl,-rpath=${SRCDIR}/salticidae/
// #include <stdlib.h>
// #include <stdint.h>
// #include <arpa/inet.h>
// #include "salticidae/network.h"
// void onTerm(int sig, void *);
// void onReceiveRand(msg_t *, msgnetwork_conn_t *, void *);
// void onReceiveAck(msg_t *, msgnetwork_conn_t *, void *);
// void onStopLoop(threadcall_handle_t *, void *);
// void peerHandler(peernetwork_conn_t *, bool, void *);
// void errorHandler(SalticidaeCError *, bool, void *);
// void onTimeout(timerev_t *, void *);
// typedef struct timeout_callback_context_t {
//     int app_id;
//     uint64_t addr_id;
//     msgnetwork_conn_t *conn;
// } timeout_callback_context_t;
// static timeout_callback_context_t *timeout_callback_context_new() {
//     timeout_callback_context_t *ctx = malloc(sizeof(timeout_callback_context_t));
//     ctx->conn = NULL;
//     return ctx;
// }
//
import "C"

import (
    "github.com/Determinant/salticidae-go"
    "math/rand"
    "os"
    "fmt"
    "sync"
    "unsafe"
    "strconv"
)

const (
    MSG_OPCODE_RAND salticidae.Opcode = iota
    MSG_OPCODE_ACK
)

func msgRandSerialize(view uint32, size int) (salticidae.Msg, salticidae.UInt256) {
    serialized := salticidae.NewDataStream(true)
    serialized.PutU32(salticidae.ToLittleEndianU32(view))
    buffer := make([]byte, size)
    _, err := rand.Read(buffer)
    if err != nil {
        panic("rand source failed")
    }
    serialized.PutData(buffer)
    hash := salticidae.NewByteArrayFromBytes(buffer, true).GetHash(true)
    return salticidae.NewMsgMovedFromByteArray(
        MSG_OPCODE_RAND,
        salticidae.NewByteArrayMovedFromDataStream(serialized, true), true), hash
}

func msgRandUnserialize(msg salticidae.Msg) (view uint32, hash salticidae.UInt256) {
    d := msg.GetPayloadByMove()
    succ := true
    view = salticidae.FromLittleEndianU32(d.GetU32(&succ))
    hash = salticidae.NewByteArrayCopiedFromDataStream(d, true).GetHash(true)
    return
}

func msgAckSerialize(view uint32, hash salticidae.UInt256) salticidae.Msg {
    serialized := salticidae.NewDataStream(true)
    serialized.PutU32(salticidae.ToLittleEndianU32(view))
    hash.Serialize(serialized)
    return salticidae.NewMsgMovedFromByteArray(
        MSG_OPCODE_ACK,
        salticidae.NewByteArrayMovedFromDataStream(serialized, true), true)
}

func msgAckUnserialize(msg salticidae.Msg) (view uint32, hash salticidae.UInt256) {
    p := msg.GetPayloadByMove()
    hash = salticidae.NewUInt256(true)
    succ := true
    view = salticidae.FromLittleEndianU32(p.GetU32(&succ))
    hash.Unserialize(p)
    return
}

func checkError(err *salticidae.Error) {
    if err.GetCode() != 0 {
        fmt.Printf("error during a sync call: %s\n", salticidae.StrError(err.GetCode()))
        os.Exit(1)
    }
}

type TestContext struct {
    timer salticidae.TimerEvent
    timer_ctx *C.struct_timeout_callback_context_t
    state int
    view uint32
    hash salticidae.UInt256
    ncompleted int
}


type AppContext struct {
    addr salticidae.NetAddr
    ec salticidae.EventContext
    net salticidae.PeerNetwork
    tcall salticidae.ThreadCall
    tc map[uint64] *TestContext
}

func (self AppContext) Free() {
    for _, tc := range self.tc {
        if tc.timer != nil {
            C.free(unsafe.Pointer(tc.timer_ctx))
        }
    }
}

func NewTestContext() TestContext {
    return TestContext { ncompleted: 0 }
}

func addr2id(addr salticidae.NetAddr) uint64 {
    return uint64(addr.GetIP()) | (uint64(addr.GetPort()) << 32)
}

func (self AppContext) getTC(addr_id uint64) (_tc *TestContext) {
    if tc, ok := self.tc[addr_id]; ok {
        _tc = tc
    } else {
        _tc = new(TestContext)
        self.tc[addr_id] = _tc
    }
    return
}

func sendRand(size int, app *AppContext, conn salticidae.MsgNetworkConn) {
    tc := app.getTC(addr2id(conn.GetAddr()))
    msg, hash := msgRandSerialize(tc.view, size)
    tc.hash = hash
    app.net.AsMsgNetwork().SendMsg(msg, conn)
}

var apps []AppContext
var threads sync.WaitGroup
var segBuffSize = 4096
var ec salticidae.EventContext
var ids []*C.int

//export onTimeout
func onTimeout(_ *C.timerev_t, userdata unsafe.Pointer) {
    ctx := (*C.struct_timeout_callback_context_t)(userdata)
    app := &apps[ctx.app_id]
    tc := app.getTC(uint64(ctx.addr_id))
    tc.ncompleted++
    app.net.AsMsgNetwork().Terminate(
        salticidae.MsgNetworkConnFromC(
            salticidae.CMsgNetworkConn(ctx.conn)))
    var s string
    for addr_id, v := range app.tc {
        s += fmt.Sprintf(" %d(%d)", C.ntohs(C.ushort(addr_id >> 32)), v.ncompleted)
    }
    fmt.Printf("INFO: %d completed:%s\n", C.ntohs(C.ushort(app.addr.GetPort())), s)
}

//export onReceiveRand
func onReceiveRand(_msg *C.struct_msg_t, _conn *C.struct_msgnetwork_conn_t, userdata unsafe.Pointer) {
    msg := salticidae.MsgFromC(salticidae.CMsg(_msg))
    conn := salticidae.MsgNetworkConnFromC(salticidae.CMsgNetworkConn(_conn))
    net := conn.GetNet()
    view, hash := msgRandUnserialize(msg)
    ack := msgAckSerialize(view, hash)
    net.SendMsg(ack, conn)
}

//export onReceiveAck
func onReceiveAck(_msg *C.struct_msg_t, _conn *C.struct_msgnetwork_conn_t, userdata unsafe.Pointer) {
    view, hash := msgAckUnserialize(salticidae.MsgFromC(salticidae.CMsg(_msg)))
    id := *(* int)(userdata)
    app := &apps[id]
    conn := salticidae.MsgNetworkConnFromC(salticidae.CMsgNetworkConn(_conn))
    addr := addr2id(conn.GetAddr())
    tc := app.getTC(addr)

    if view != tc.view {
        fmt.Printf("dropping stale MsgAck")
        return
    }

    if !hash.IsEq(tc.hash) {
        panic("corrupted I/O!")
    }

    if tc.state == segBuffSize * 2 {
        sendRand(tc.state, app, conn)
        tc.state = -1
        ctx := C.timeout_callback_context_new()
        ctx.app_id = C.int(id)
        ctx.addr_id = C.uint64_t(addr)
        ctx.conn = C.msgnetwork_conn_copy(_conn)
        if tc.timer != nil {
            C.msgnetwork_conn_free(tc.timer_ctx.conn)
            C.free(unsafe.Pointer(tc.timer_ctx))
        }
        tc.timer = salticidae.NewTimerEvent(app.ec, salticidae.TimerEventCallback(C.onTimeout), unsafe.Pointer(ctx))
        tc.timer_ctx = ctx
        t := rand.Float64() * 10
        tc.timer.Add(t)
        fmt.Printf("rand-bomboard phase, ending in %.2f secs\n", t)
    } else if tc.state == -1 {
        sendRand(rand.Int() % (segBuffSize * 10), app, conn)
    } else {
        tc.state++
        sendRand(tc.state, app, conn)
    }
}

//export peerHandler
func peerHandler(_conn *C.struct_peernetwork_conn_t, connected C.bool, userdata unsafe.Pointer) {
    if connected {
        conn := salticidae.NewMsgNetworkConnFromPeerNetworkConn(salticidae.PeerNetworkConnFromC(salticidae.CPeerNetworkConn(_conn)))
        id := *(*int)(userdata)
        app := &apps[id]
        if conn.GetMode() == salticidae.CONN_MODE_ACTIVE {
            tc := app.getTC(addr2id(conn.GetAddr()))
            tc.state = 1
            fmt.Printf("INFO: increasing phase\n")
            sendRand(tc.state, app, conn)
        }
    }
}

//export errorHandler
func errorHandler(_err *C.struct_SalticidaeCError, fatal C.bool, _ unsafe.Pointer) {
    err := (*salticidae.Error)(unsafe.Pointer(_err))
    s := "recoverable"
    if fatal { s = "fatal" }
    fmt.Printf("Captured %s error during an async call: %s\n", s, salticidae.StrError(err.GetCode