lotus/api/test/blockminer.go

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package test
import (
"context"
"fmt"
"sync/atomic"
"testing"
"time"
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"github.com/filecoin-project/go-state-types/abi"
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"github.com/filecoin-project/lotus/miner"
)
type BlockMiner struct {
ctx context.Context
t *testing.T
miner TestStorageNode
blocktime time.Duration
mine int64
nulls int64
done chan struct{}
}
func NewBlockMiner(ctx context.Context, t *testing.T, miner TestStorageNode, blocktime time.Duration) *BlockMiner {
return &BlockMiner{
ctx: ctx,
t: t,
miner: miner,
blocktime: blocktime,
mine: int64(1),
done: make(chan struct{}),
}
}
func (bm *BlockMiner) MineBlocks() {
time.Sleep(time.Second)
go func() {
defer close(bm.done)
for atomic.LoadInt64(&bm.mine) == 1 {
time.Sleep(bm.blocktime)
nulls := atomic.SwapInt64(&bm.nulls, 0)
if err := bm.miner.MineOne(bm.ctx, miner.MineReq{
InjectNulls: abi.ChainEpoch(nulls),
Done: func(bool, abi.ChainEpoch, error) {},
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}); err != nil {
bm.t.Error(err)
}
}
}()
}
func (bm *BlockMiner) Stop() {
atomic.AddInt64(&bm.mine, -1)
fmt.Println("shutting down mining")
<-bm.done
}