4e8b495ad7
The motivation is exactly the same as for the last commit. In addition, this anticipates us formally defining separate serialisers for the serve protocol.
62 lines
1.3 KiB
C++
62 lines
1.3 KiB
C++
#pragma once
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///@file
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namespace nix {
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#define SERVE_MAGIC_1 0x390c9deb
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#define SERVE_MAGIC_2 0x5452eecb
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#define SERVE_PROTOCOL_VERSION (2 << 8 | 7)
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#define GET_PROTOCOL_MAJOR(x) ((x) & 0xff00)
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#define GET_PROTOCOL_MINOR(x) ((x) & 0x00ff)
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/**
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* The "serve protocol", used by ssh:// stores.
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*
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* This `struct` is basically just a `namespace`; We use a type rather
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* than a namespace just so we can use it as a template argument.
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*/
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struct ServeProto
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{
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/**
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* Enumeration of all the request types for the protocol.
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*/
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enum struct Command : uint64_t;
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};
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enum struct ServeProto::Command : uint64_t
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{
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QueryValidPaths = 1,
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QueryPathInfos = 2,
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DumpStorePath = 3,
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ImportPaths = 4,
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ExportPaths = 5,
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BuildPaths = 6,
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QueryClosure = 7,
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BuildDerivation = 8,
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AddToStoreNar = 9,
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};
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/**
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* Convenience for sending operation codes.
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*
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* @todo Switch to using `ServeProto::Serialize` instead probably. But
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* this was not done at this time so there would be less churn.
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*/
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inline Sink & operator << (Sink & sink, ServeProto::Command op)
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{
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return sink << (uint64_t) op;
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}
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/**
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* Convenience for debugging.
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*
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* @todo Perhaps render known opcodes more nicely.
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*/
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inline std::ostream & operator << (std::ostream & s, ServeProto::Command op)
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{
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return s << (uint64_t) op;
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}
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}
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