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new_map_gen.go
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new_map_gen.go
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// Copyright (c) 2018 Uber Technologies, Inc.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
// This file was automatically generated by genny.
// Any changes will be lost if this file is regenerated.
// see https://github.com/mauricelam/genny
package result
import (
"github.com/m3db/m3/src/x/ident"
"github.com/m3db/m3/src/x/pool"
"github.com/cespare/xxhash"
)
// Copyright (c) 2018 Uber Technologies, Inc.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
// MapOptions provides options used when created the map.
type MapOptions struct {
InitialSize int
KeyCopyPool pool.BytesPool
}
// NewMap returns a new byte keyed map.
func NewMap(opts MapOptions) *Map {
var (
copyFn CopyFn
finalizeFn FinalizeFn
)
if pool := opts.KeyCopyPool; pool == nil {
copyFn = func(k ident.ID) ident.ID {
return ident.BytesID(append([]byte(nil), k.Bytes()...))
}
} else {
copyFn = func(k ident.ID) ident.ID {
bytes := k.Bytes()
keyLen := len(bytes)
pooled := pool.Get(keyLen)[:keyLen]
copy(pooled, bytes)
return ident.BytesID(pooled)
}
finalizeFn = func(k ident.ID) {
if slice, ok := k.(ident.BytesID); ok {
pool.Put(slice)
}
}
}
return mapAlloc(mapOptions{
hash: func(id ident.ID) MapHash {
return MapHash(xxhash.Sum64(id.Bytes()))
},
equals: func(x, y ident.ID) bool {
return x.Equal(y)
},
copy: copyFn,
finalize: finalizeFn,
initialSize: opts.InitialSize,
})
}