neoneo-go/pkg/network/blockqueue.go
Vsevolod Brekelov d374175170 monitoring: add prometheus monitoring
add init metrics service which uses prometheus;
add configuration for metrics service;
add monitoring metrics for blockchain,rpc,server;
2019-10-29 20:51:17 +03:00

80 lines
1.8 KiB
Go

package network
import (
"github.com/CityOfZion/neo-go/pkg/core"
"github.com/Workiva/go-datastructures/queue"
log "github.com/sirupsen/logrus"
)
type blockQueue struct {
queue *queue.PriorityQueue
checkBlocks chan struct{}
chain core.Blockchainer
}
func newBlockQueue(capacity int, bc core.Blockchainer) *blockQueue {
return &blockQueue{
queue: queue.NewPriorityQueue(capacity, false),
checkBlocks: make(chan struct{}, 1),
chain: bc,
}
}
func (bq *blockQueue) run() {
for {
_, ok := <-bq.checkBlocks
if !ok {
break
}
for {
item := bq.queue.Peek()
if item == nil {
break
}
minblock := item.(*core.Block)
if minblock.Index <= bq.chain.BlockHeight()+1 {
_, _ = bq.queue.Get(1)
updateBlockQueueLenMetric(bq.length())
if minblock.Index == bq.chain.BlockHeight()+1 {
err := bq.chain.AddBlock(minblock)
if err != nil {
log.WithFields(log.Fields{
"error": err.Error(),
"blockHeight": bq.chain.BlockHeight(),
"nextIndex": minblock.Index,
}).Warn("blockQueue: failed adding block into the blockchain")
}
}
} else {
break
}
}
}
}
func (bq *blockQueue) putBlock(block *core.Block) error {
if bq.chain.BlockHeight() >= block.Index {
// can easily happen when fetching the same blocks from
// different peers, thus not considered as error
return nil
}
err := bq.queue.Put(block)
// update metrics
updateBlockQueueLenMetric(bq.length())
select {
case bq.checkBlocks <- struct{}{}:
// ok, signalled to goroutine processing queue
default:
// it's already busy processing blocks
}
return err
}
func (bq *blockQueue) discard() {
close(bq.checkBlocks)
bq.queue.Dispose()
}
func (bq *blockQueue) length() int {
return bq.queue.Len()
}