diff options
Diffstat (limited to 'core/types/block.go')
| -rw-r--r-- | core/types/block.go | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/core/types/block.go b/core/types/block.go index ffe317342..92b868d9d 100644 --- a/core/types/block.go +++ b/core/types/block.go @@ -25,6 +25,7 @@ import ( "sort" "sync/atomic" "time" + "unsafe" "github.com/ethereum/go-ethereum/common" "github.com/ethereum/go-ethereum/common/hexutil" @@ -121,6 +122,12 @@ func (h *Header) HashNoNonce() common.Hash { }) } +// Size returns the approximate memory used by all internal contents. It is used +// to approximate and limit the memory consumption of various caches. +func (h *Header) Size() common.StorageSize { + return common.StorageSize(unsafe.Sizeof(*h)) + common.StorageSize(len(h.Extra)+(h.Difficulty.BitLen()+h.Number.BitLen()+h.Time.BitLen())/8) +} + func rlpHash(x interface{}) (h common.Hash) { hw := sha3.NewKeccak256() rlp.Encode(hw, x) @@ -322,6 +329,8 @@ func (b *Block) HashNoNonce() common.Hash { return b.header.HashNoNonce() } +// Size returns the true RLP encoded storage size of the block, either by encoding +// and returning it, or returning a previsouly cached value. func (b *Block) Size() common.StorageSize { if size := b.size.Load(); size != nil { return size.(common.StorageSize) |