mirror of
https://github.com/mudler/luet.git
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4adc0dc9b9
Instead of using gox on one side and an action to release, we can merge them together with goreleaser which will build for extra targets (arm, mips if needed in the future) and it also takes care of creating checksums, a source archive, and a changelog and creating a release with all the artifacts. All binaries should respect the old naming convention, so any scripts out there should still work. Signed-off-by: Itxaka <igarcia@suse.com>
84 lines
2.3 KiB
Go
84 lines
2.3 KiB
Go
// Copyright 2019+ Klaus Post. All rights reserved.
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// License information can be found in the LICENSE file.
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// Based on work by Yann Collet, released under BSD License.
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package zstd
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import (
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"errors"
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"runtime"
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)
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// DOption is an option for creating a decoder.
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type DOption func(*decoderOptions) error
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// options retains accumulated state of multiple options.
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type decoderOptions struct {
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lowMem bool
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concurrent int
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maxDecodedSize uint64
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dicts []dict
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}
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func (o *decoderOptions) setDefault() {
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*o = decoderOptions{
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// use less ram: true for now, but may change.
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lowMem: true,
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concurrent: runtime.GOMAXPROCS(0),
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}
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o.maxDecodedSize = 1 << 63
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}
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// WithDecoderLowmem will set whether to use a lower amount of memory,
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// but possibly have to allocate more while running.
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func WithDecoderLowmem(b bool) DOption {
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return func(o *decoderOptions) error { o.lowMem = b; return nil }
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}
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// WithDecoderConcurrency will set the concurrency,
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// meaning the maximum number of decoders to run concurrently.
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// The value supplied must be at least 1.
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// By default this will be set to GOMAXPROCS.
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func WithDecoderConcurrency(n int) DOption {
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return func(o *decoderOptions) error {
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if n <= 0 {
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return errors.New("concurrency must be at least 1")
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}
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o.concurrent = n
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return nil
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}
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}
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// WithDecoderMaxMemory allows to set a maximum decoded size for in-memory
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// non-streaming operations or maximum window size for streaming operations.
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// This can be used to control memory usage of potentially hostile content.
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// For streaming operations, the maximum window size is capped at 1<<30 bytes.
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// Maximum and default is 1 << 63 bytes.
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func WithDecoderMaxMemory(n uint64) DOption {
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return func(o *decoderOptions) error {
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if n == 0 {
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return errors.New("WithDecoderMaxMemory must be at least 1")
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}
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if n > 1<<63 {
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return errors.New("WithDecoderMaxmemory must be less than 1 << 63")
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}
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o.maxDecodedSize = n
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return nil
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}
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}
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// WithDecoderDicts allows to register one or more dictionaries for the decoder.
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// If several dictionaries with the same ID is provided the last one will be used.
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func WithDecoderDicts(dicts ...[]byte) DOption {
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return func(o *decoderOptions) error {
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for _, b := range dicts {
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d, err := loadDict(b)
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if err != nil {
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return err
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}
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o.dicts = append(o.dicts, *d)
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}
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return nil
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}
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}
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