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feat(vhdMerge): avoid unnecessary footer write

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This commit is contained in:
Julien Fontanet
2017-02-22 17:14:44 +01:00
parent 8c573aa8e4
commit e54e31e059
1 changed files with 10 additions and 12 deletions
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22
src/vhd-merge.js
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@@ -613,24 +613,22 @@ export default async function vhdMerge (
await parentVhd.ensureBatSize(childVhd.header.maxTableEntries)
{
const cFooter = childVhd.footer
const pFooter = parentVhd.footer
pFooter.currentSize = { ...cFooter.currentSize }
pFooter.diskGeometry = { ...cFooter.diskGeometry }
pFooter.originalSize = { ...cFooter.originalSize }
pFooter.timestamp = cFooter.timestamp
await parentVhd.writeFooter()
}
for (let blockId = 0; blockId < childVhd.header.maxTableEntries; blockId++) {
if (childVhd._getBatEntry(blockId) !== BLOCK_UNUSED) {
await parentVhd.coalesceBlock(childVhd, blockId)
}
}
const cFooter = childVhd.footer
const pFooter = parentVhd.footer
pFooter.currentSize = { ...cFooter.currentSize }
pFooter.diskGeometry = { ...cFooter.diskGeometry }
pFooter.originalSize = { ...cFooter.originalSize }
pFooter.timestamp = cFooter.timestamp
// necessary to update values and to recreate the footer after block
// creation
await parentVhd.writeFooter()
}