bbe97dff8b
Most functions now take a StorePath argument rather than a Path (which is just an alias for std::string). The StorePath constructor ensures that the path is syntactically correct (i.e. it looks like <store-dir>/<base32-hash>-<name>). Similarly, functions like buildPaths() now take a StorePathWithOutputs, rather than abusing Path by adding a '!<outputs>' suffix. Note that the StorePath type is implemented in Rust. This involves some hackery to allow Rust values to be used directly in C++, via a helper type whose destructor calls the Rust type's drop() function. The main issue is the dynamic nature of C++ move semantics: after we have moved a Rust value, we should not call the drop function on the original value. So when we move a value, we set the original value to bitwise zero, and the destructor only calls drop() if the value is not bitwise zero. This should be sufficient for most types. Also lots of minor cleanups to the C++ API to make it more modern (e.g. using std::optional and std::string_view in some places).
74 lines
1.8 KiB
C++
74 lines
1.8 KiB
C++
#pragma once
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namespace nix {
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#define WORKER_MAGIC_1 0x6e697863
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#define WORKER_MAGIC_2 0x6478696f
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#define PROTOCOL_VERSION 0x115
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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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typedef enum {
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wopIsValidPath = 1,
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wopHasSubstitutes = 3,
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wopQueryPathHash = 4, // obsolete
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wopQueryReferences = 5, // obsolete
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wopQueryReferrers = 6,
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wopAddToStore = 7,
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wopAddTextToStore = 8,
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wopBuildPaths = 9,
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wopEnsurePath = 10,
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wopAddTempRoot = 11,
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wopAddIndirectRoot = 12,
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wopSyncWithGC = 13,
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wopFindRoots = 14,
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wopExportPath = 16, // obsolete
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wopQueryDeriver = 18, // obsolete
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wopSetOptions = 19,
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wopCollectGarbage = 20,
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wopQuerySubstitutablePathInfo = 21,
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wopQueryDerivationOutputs = 22,
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wopQueryAllValidPaths = 23,
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wopQueryFailedPaths = 24,
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wopClearFailedPaths = 25,
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wopQueryPathInfo = 26,
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wopImportPaths = 27, // obsolete
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wopQueryDerivationOutputNames = 28,
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wopQueryPathFromHashPart = 29,
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wopQuerySubstitutablePathInfos = 30,
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wopQueryValidPaths = 31,
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wopQuerySubstitutablePaths = 32,
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wopQueryValidDerivers = 33,
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wopOptimiseStore = 34,
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wopVerifyStore = 35,
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wopBuildDerivation = 36,
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wopAddSignatures = 37,
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wopNarFromPath = 38,
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wopAddToStoreNar = 39,
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wopQueryMissing = 40,
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} WorkerOp;
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#define STDERR_NEXT 0x6f6c6d67
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#define STDERR_READ 0x64617461 // data needed from source
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#define STDERR_WRITE 0x64617416 // data for sink
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#define STDERR_LAST 0x616c7473
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#define STDERR_ERROR 0x63787470
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#define STDERR_START_ACTIVITY 0x53545254
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#define STDERR_STOP_ACTIVITY 0x53544f50
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#define STDERR_RESULT 0x52534c54
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class Store;
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struct Source;
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template<class T> T readStorePaths(const Store & store, Source & from);
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void writeStorePaths(const Store & store, Sink & out, const StorePathSet & paths);
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}
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