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Add Last db view in kvdb and statedb

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Last db view is an opened pebble db which always contains a checkpoint from the
last batch.  Methods to access this last batch are thread safe so that views of
the last checkpoint can be made anywhere and with a consistent view of the
state.
This commit is contained in:
Eduard S
2021-02-02 15:42:52 +01:00
parent ca7fa8ae2e
commit 6590c47a9a
12 changed files with 422 additions and 160 deletions
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18
test/debugapi/debugapi.go
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@@ -55,7 +55,7 @@ func (a *DebugAPI) handleAccount(c *gin.Context) {
badReq(err, c)
return
}
account, err := a.stateDB.GetAccount(common.Idx(uri.Idx))
account, err := a.stateDB.LastGetAccount(common.Idx(uri.Idx))
if err != nil {
badReq(err, c)
return
@@ -64,8 +64,12 @@ func (a *DebugAPI) handleAccount(c *gin.Context) {
}
func (a *DebugAPI) handleAccounts(c *gin.Context) {
accounts, err := a.stateDB.GetAccounts()
if err != nil {
var accounts []common.Account
if err := a.stateDB.LastRead(func(sdb *statedb.Last) error {
var err error
accounts, err = sdb.GetAccounts()
return err
}); err != nil {
badReq(err, c)
return
}
@@ -73,7 +77,7 @@ func (a *DebugAPI) handleAccounts(c *gin.Context) {
}
func (a *DebugAPI) handleCurrentBatch(c *gin.Context) {
batchNum, err := a.stateDB.GetCurrentBatch()
batchNum, err := a.stateDB.LastGetCurrentBatch()
if err != nil {
badReq(err, c)
return
@@ -82,7 +86,11 @@ func (a *DebugAPI) handleCurrentBatch(c *gin.Context) {
}
func (a *DebugAPI) handleMTRoot(c *gin.Context) {
root := a.stateDB.MTGetRoot()
root, err := a.stateDB.LastMTGetRoot()
if err != nil {
badReq(err, c)
return
}
c.JSON(http.StatusOK, root)
}