mirror of
https://github.com/hanzoai/visor.git
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zeekayandHanzo Dev
3da05638df
urpc encodes with encoding/json, which walks the payload on every call: a realistic control.ExecArgs costs 7084ns and 10 allocations to cross. ZAP reads a field at a constant offset out of the buffer that arrived, so the same payload is 740ns and one allocation -- but only if the offsets are stated, and a stated offset that is wrong is silent corruption rather than a compile error. So state them from the types themselves. //tools/zap reflects over the payloads at build time and writes the wire as Go source with the offsets as constants. It lives inside Bazel because pkg/sentry/control cannot be imported from outside it: the *_go_proto packages it depends on have no source in the tree. Six payloads had no layout to state. A map, an interface and a type from another module have no offsets, so each is answered in the type: SaveOpts.Metadata and StartContainerArgs.InitialCgroups/Limits cross as lists of pairs; boot.Route.Destination restates net.IPNet as Subnet; OpenMountArgs restates the OCI mount fields the call actually uses; StartArgs.Spec and SinkConfig.Config carry their documents as the bytes they arrived as; MetricsRegistrationResponse carries the protocol buffer the same way; and seccheck's session options become a type instead of a map of any. ExecArgs and MetricsExportData still have none: ExecArgs holds live kernel objects behind an interface, and MetricsExportData reaches a prometheus snapshot whose labels are a map. Co-authored-by: Hanzo Dev <[email protected]>
65 lines
1.7 KiB
Go
65 lines
1.7 KiB
Go
// Copyright 2026 The gVisor Authors.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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// Code generated by zip; DO NOT EDIT.
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package memmap
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import (
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"fmt"
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zap "github.com/zap-proto/go"
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)
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// ---- FileRange ---------------------------------------------------------
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const (
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fileRangeStartAt = 0
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fileRangeEndAt = 8
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fileRangeSize = 16
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)
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var _ interface {
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MarshalZAP() ([]byte, error)
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UnmarshalZAP([]byte) error
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} = (*FileRange)(nil)
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// MarshalZAP writes FileRange from constant offsets.
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func (x *FileRange) MarshalZAP() ([]byte, error) {
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if x == nil {
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return nil, nil
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}
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b := zap.NewBuilder(fileRangeSize + 256)
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ob := b.StartObject(fileRangeSize)
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ob.SetUint64(fileRangeStartAt, uint64(x.Start))
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ob.SetUint64(fileRangeEndAt, uint64(x.End))
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ob.FinishAsRoot()
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return b.Finish(), nil
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}
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// UnmarshalZAP reads FileRange out of the buffer that arrived.
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func (x *FileRange) UnmarshalZAP(data []byte) error {
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if x == nil || len(data) == 0 {
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return nil
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}
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m, err := zap.Parse(data)
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if err != nil {
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return fmt.Errorf("FileRange: %w", err)
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}
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o := m.Root()
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x.Start = uint64(o.Uint64(fileRangeStartAt))
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x.End = uint64(o.Uint64(fileRangeEndAt))
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return nil
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}
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