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Copy metadata before spawning goroutine + prealloc maps (#10458)

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In `(*cacheObjects).GetObjectNInfo` copy the metadata before spawning a goroutine.

Clean up a few map[string]string copies as well, reducing allocs and simplifying the code.

Fixes #10426
This commit is contained in:
Klaus Post
2020-09-10 11:37:22 -07:00
committed by GitHub
parent ce6cef6855
commit b7438fe4e6
16 changed files with 47 additions and 63 deletions
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6
cmd/crypto/metadata.go
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@@ -129,7 +129,7 @@ func (ssec) IsEncrypted(metadata map[string]string) bool {
// metadata is nil.
func CreateMultipartMetadata(metadata map[string]string) map[string]string {
if metadata == nil {
metadata = map[string]string{}
return map[string]string{SSEMultipart: ""}
}
metadata[SSEMultipart] = ""
return metadata
@@ -156,7 +156,7 @@ func (s3) CreateMetadata(metadata map[string]string, keyID string, kmsKey []byte
}
if metadata == nil {
metadata = map[string]string{}
metadata = make(map[string]string, 5)
}
metadata[SSESealAlgorithm] = sealedKey.Algorithm
@@ -236,7 +236,7 @@ func (ssec) CreateMetadata(metadata map[string]string, sealedKey SealedKey) map[
}
if metadata == nil {
metadata = map[string]string{}
metadata = make(map[string]string, 3)
}
metadata[SSESealAlgorithm] = SealAlgorithm
metadata[SSEIV] = base64.StdEncoding.EncodeToString(sealedKey.IV[:])