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#pragma once
namespace nix {
#define WORKER_MAGIC_1 0x6e697863
#define WORKER_MAGIC_2 0x6478696f
#define PROTOCOL_VERSION 0x117
#define GET_PROTOCOL_MAJOR(x) ((x) & 0xff00)
#define GET_PROTOCOL_MINOR(x) ((x) & 0x00ff)
typedef enum {
wopIsValidPath = 1,
wopHasSubstitutes = 3,
wopQueryPathHash = 4, // obsolete
wopQueryReferences = 5, // obsolete
wopQueryReferrers = 6,
wopAddToStore = 7,
wopAddTextToStore = 8,
wopBuildPaths = 9,
wopEnsurePath = 10,
wopAddTempRoot = 11,
wopAddIndirectRoot = 12,
wopSyncWithGC = 13,
wopFindRoots = 14,
wopExportPath = 16, // obsolete
wopQueryDeriver = 18, // obsolete
wopSetOptions = 19,
wopCollectGarbage = 20,
wopQuerySubstitutablePathInfo = 21,
wopQueryDerivationOutputs = 22, // obsolete
wopQueryAllValidPaths = 23,
wopQueryFailedPaths = 24,
wopClearFailedPaths = 25,
wopQueryPathInfo = 26,
wopImportPaths = 27, // obsolete
wopQueryDerivationOutputNames = 28, // obsolete
wopQueryPathFromHashPart = 29,
wopQuerySubstitutablePathInfos = 30,
wopQueryValidPaths = 31,
wopQuerySubstitutablePaths = 32,
wopQueryValidDerivers = 33,
wopOptimiseStore = 34,
wopVerifyStore = 35,
wopBuildDerivation = 36,
wopAddSignatures = 37,
wopNarFromPath = 38,
wopAddToStoreNar = 39,
wopQueryMissing = 40,
wopQueryDerivationOutputMap = 41,
} WorkerOp;
#define STDERR_NEXT 0x6f6c6d67
#define STDERR_READ 0x64617461 // data needed from source
#define STDERR_WRITE 0x64617416 // data for sink
#define STDERR_LAST 0x616c7473
#define STDERR_ERROR 0x63787470
#define STDERR_START_ACTIVITY 0x53545254
#define STDERR_STOP_ACTIVITY 0x53544f50
#define STDERR_RESULT 0x52534c54
class Store;
struct Source;
template<typename T>
struct WorkerProto {
static T read(const Store & store, Source & from);
static void write(const Store & store, Sink & out, const T & t);
};
#define MAKE_WORKER_PROTO(T) \
template<> \
struct WorkerProto< T > { \
static T read(const Store & store, Source & from); \
static void write(const Store & store, Sink & out, const T & t); \
}
MAKE_WORKER_PROTO(std::string);
MAKE_WORKER_PROTO(StorePath);
MAKE_WORKER_PROTO(ContentAddress);
template<typename T>
struct WorkerProto<std::set<T>> {
static std::set<T> read(const Store & store, Source & from)
{
std::set<T> resSet;
auto size = readNum<size_t>(from);
while (size--) {
resSet.insert(WorkerProto<T>::read(store, from));
}
return resSet;
}
static void write(const Store & store, Sink & out, const std::set<T> & resSet)
{
out << resSet.size();
for (auto & key : resSet) {
WorkerProto<T>::write(store, out, key);
}
}
};
template<typename K, typename V>
struct WorkerProto<std::map<K, V>> {
static std::map<K, V> read(const Store & store, Source & from)
{
std::map<K, V> resMap;
auto size = readNum<size_t>(from);
while (size--) {
auto k = WorkerProto<K>::read(store, from);
auto v = WorkerProto<V>::read(store, from);
resMap.insert_or_assign(std::move(k), std::move(v));
}
return resMap;
}
static void write(const Store & store, Sink & out, const std::map<K, V> & resMap)
{
out << resMap.size();
for (auto & i : resMap) {
WorkerProto<K>::write(store, out, i.first);
WorkerProto<V>::write(store, out, i.second);
}
}
};
template<typename T>
struct WorkerProto<std::optional<T>> {
static std::optional<T> read(const Store & store, Source & from)
{
auto tag = readNum<uint8_t>(from);
switch (tag) {
case 0:
return std::nullopt;
case 1:
return WorkerProto<T>::read(store, from);
default:
throw Error("got an invalid tag bit for std::optional: %#04x", (size_t)tag);
}
}
static void write(const Store & store, Sink & out, const std::optional<T> & optVal)
{
out << (uint64_t) (optVal ? 1 : 0);
if (optVal)
WorkerProto<T>::write(store, out, *optVal);
}
};
/* Specialization which uses and empty string for the empty case, taking
advantage of the fact these types always serialize to non-empty strings.
This is done primarily for backwards compatability, so that T <=
std::optional<T>, where <= is the compatability partial order, T is one of
the types below.
*/
MAKE_WORKER_PROTO(std::optional<StorePath>);
MAKE_WORKER_PROTO(std::optional<ContentAddress>);
}
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