forked from cerc-io/plugeth
106 lines
3.2 KiB
Go
106 lines
3.2 KiB
Go
// Copyright 2017 The go-ethereum Authors
|
|
// This file is part of the go-ethereum library.
|
|
//
|
|
// The go-ethereum library is free software: you can redistribute it and/or modify
|
|
// it under the terms of the GNU Lesser General Public License as published by
|
|
// the Free Software Foundation, either version 3 of the License, or
|
|
// (at your option) any later version.
|
|
//
|
|
// The go-ethereum library is distributed in the hope that it will be useful,
|
|
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
// GNU Lesser General Public License for more details.
|
|
//
|
|
// You should have received a copy of the GNU Lesser General Public License
|
|
// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
|
|
|
|
package bloombits
|
|
|
|
import (
|
|
"bytes"
|
|
"math/big"
|
|
"math/rand"
|
|
"sync"
|
|
"sync/atomic"
|
|
"testing"
|
|
"time"
|
|
)
|
|
|
|
// Tests that the scheduler can deduplicate and forward retrieval requests to
|
|
// underlying fetchers and serve responses back, irrelevant of the concurrency
|
|
// of the requesting clients or serving data fetchers.
|
|
func TestSchedulerSingleClientSingleFetcher(t *testing.T) { testScheduler(t, 1, 1, 5000) }
|
|
func TestSchedulerSingleClientMultiFetcher(t *testing.T) { testScheduler(t, 1, 10, 5000) }
|
|
func TestSchedulerMultiClientSingleFetcher(t *testing.T) { testScheduler(t, 10, 1, 5000) }
|
|
func TestSchedulerMultiClientMultiFetcher(t *testing.T) { testScheduler(t, 10, 10, 5000) }
|
|
|
|
func testScheduler(t *testing.T, clients int, fetchers int, requests int) {
|
|
f := newScheduler(0)
|
|
|
|
// Create a batch of handler goroutines that respond to bloom bit requests and
|
|
// deliver them to the scheduler.
|
|
var fetchPend sync.WaitGroup
|
|
fetchPend.Add(fetchers)
|
|
defer fetchPend.Wait()
|
|
|
|
fetch := make(chan *request, 16)
|
|
defer close(fetch)
|
|
|
|
var delivered uint32
|
|
for i := 0; i < fetchers; i++ {
|
|
go func() {
|
|
defer fetchPend.Done()
|
|
|
|
for req := range fetch {
|
|
time.Sleep(time.Duration(rand.Intn(int(100 * time.Microsecond))))
|
|
atomic.AddUint32(&delivered, 1)
|
|
|
|
f.deliver([]uint64{
|
|
req.section + uint64(requests), // Non-requested data (ensure it doesn't go out of bounds)
|
|
req.section, // Requested data
|
|
req.section, // Duplicated data (ensure it doesn't double close anything)
|
|
}, [][]byte{
|
|
[]byte{},
|
|
new(big.Int).SetUint64(req.section).Bytes(),
|
|
new(big.Int).SetUint64(req.section).Bytes(),
|
|
})
|
|
}
|
|
}()
|
|
}
|
|
// Start a batch of goroutines to concurrently run scheduling tasks
|
|
quit := make(chan struct{})
|
|
|
|
var pend sync.WaitGroup
|
|
pend.Add(clients)
|
|
|
|
for i := 0; i < clients; i++ {
|
|
go func() {
|
|
defer pend.Done()
|
|
|
|
in := make(chan uint64, 16)
|
|
out := make(chan []byte, 16)
|
|
|
|
f.run(in, fetch, out, quit, &pend)
|
|
|
|
go func() {
|
|
for j := 0; j < requests; j++ {
|
|
in <- uint64(j)
|
|
}
|
|
close(in)
|
|
}()
|
|
|
|
for j := 0; j < requests; j++ {
|
|
bits := <-out
|
|
if want := new(big.Int).SetUint64(uint64(j)).Bytes(); !bytes.Equal(bits, want) {
|
|
t.Errorf("vector %d: delivered content mismatch: have %x, want %x", j, bits, want)
|
|
}
|
|
}
|
|
}()
|
|
}
|
|
pend.Wait()
|
|
|
|
if have := atomic.LoadUint32(&delivered); int(have) != requests {
|
|
t.Errorf("request count mismatch: have %v, want %v", have, requests)
|
|
}
|
|
}
|