0g-chain/internal/x/paychan/endblocker.go
2018-08-28 23:45:26 -04:00

38 lines
970 B
Go

package paychan
import (
sdk "github.com/cosmos/cosmos-sdk/types"
)
func EndBlocker(ctx sdk.Context, k Keeper) sdk.Tags {
var err sdk.Error
var channelTags sdk.Tags
tags := sdk.EmptyTags()
// Iterate through submittedUpdatesQueue
// TODO optimise so it doesn't pull every update from DB every block
var sUpdate SubmittedUpdate
q, found := k.getSubmittedUpdatesQueue(ctx)
if !found {
panic("SubmittedUpdatesQueue not found.")
}
for _, id := range q {
// close the channel if the update has reached its execution time.
// Using >= in case some are somehow missed.
sUpdate, found = k.getSubmittedUpdate(ctx, id)
if !found {
panic("can't find element in queue that should exist")
}
if ctx.BlockHeight() >= sUpdate.ExecutionTime {
k.removeFromSubmittedUpdatesQueue(ctx, sUpdate.ChannelID)
channelTags, err = k.closeChannel(ctx, sUpdate.Update)
if err != nil {
panic(err)
}
tags.AppendTags(channelTags)
}
}
return tags
}