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Merge branch 'drv-outputs-map-allow-missing' of github.com:obsidiansystems/nix into templated-daemon-protocol

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This commit is contained in:
John Ericson 2020-08-07 18:51:01 +00:00
commit 8f92bb5ad9
16 changed files with 228 additions and 133 deletions
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34
src/libstore/worker-protocol.hh
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@ -72,23 +72,16 @@ struct WorkerProto {
static void write(const Store & store, Sink & out, const T & t);
};
template<>
struct WorkerProto<std::string> {
static std::string read(const Store & store, Source & from);
static void write(const Store & store, Sink & out, const std::string & 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); \
}
template<>
struct WorkerProto<StorePath> {
static StorePath read(const Store & store, Source & from);
static void write(const Store & store, Sink & out, const StorePath & t);
};
template<>
struct WorkerProto<ContentAddress> {
static ContentAddress read(const Store & store, Source & from);
static void write(const Store & store, Sink & out, const ContentAddress & t);
};
MAKE_WORKER_PROTO(std::string);
MAKE_WORKER_PROTO(StorePath);
MAKE_WORKER_PROTO(ContentAddress);
template<typename T>
struct WorkerProto<std::set<T>> {
@ -164,4 +157,13 @@ struct WorkerProto<std::optional<T>> {
};
/* 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>);
}