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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]>
74 lines
1.6 KiB
Python
74 lines
1.6 KiB
Python
load("//tools:defs.bzl", "go_library", "go_test")
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load("//tools/go_generics:defs.bzl", "go_template_instance")
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package(
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default_applicable_licenses = ["//:license"],
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licenses = ["notice"],
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)
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go_template_instance(
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name = "mappable_range",
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out = "mappable_range.go",
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package = "memmap",
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prefix = "Mappable",
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template = "//pkg/segment:generic_range",
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types = {
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"T": "uint64",
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},
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)
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go_template_instance(
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name = "mapping_set_impl",
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out = "mapping_set_impl.go",
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package = "memmap",
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prefix = "Mapping",
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template = "//pkg/segment:generic_set",
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types = {
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"Key": "uint64",
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"Range": "MappableRange",
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"Value": "MappingsOfRange",
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"Functions": "mappingSetFunctions",
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},
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)
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go_template_instance(
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name = "file_range",
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out = "file_range.go",
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package = "memmap",
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prefix = "File",
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template = "//pkg/segment:generic_range",
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types = {
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"T": "uint64",
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},
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)
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go_library(
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name = "memmap",
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srcs = [
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"file_range.go",
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"mappable_range.go",
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"mapping_set.go",
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"mapping_set_impl.go",
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"memmap.go",
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"zap.go",
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],
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visibility = ["//pkg/sentry:internal"],
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deps = [
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"//pkg/context",
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"//pkg/errors/linuxerr",
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"//pkg/hostarch",
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"//pkg/log",
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"//pkg/safemem",
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"//pkg/usermem",
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"@com_github_zap_proto_go//:go",
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],
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)
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go_test(
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name = "memmap_test",
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size = "small",
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srcs = ["mapping_set_test.go"],
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library = ":memmap",
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deps = ["//pkg/hostarch"],
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)
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