libutil: allow draining Generator<Bytes> into sinks

Change-Id: I442d03a5399096d4baca9a2618b4c4b64db36c4b
This commit is contained in:
eldritch horrors 2024-06-27 16:48:10 +02:00
parent 4857feb910
commit b252b3c6e3
2 changed files with 10 additions and 0 deletions

View file

@ -65,5 +65,6 @@ if cxx.get_linker_id() in ['ld.bfd', 'ld.gold']
endif endif
libstore = dependency('lixstore', 'lix-store', required : true) libstore = dependency('lixstore', 'lix-store', required : true)
libutil = dependency('lixutil', 'lix-util', required : true)
subdir('lib/Nix') subdir('lib/Nix')

View file

@ -1,8 +1,10 @@
#pragma once #pragma once
///@file ///@file
#include <concepts>
#include <memory> #include <memory>
#include "generator.hh"
#include "strings.hh" #include "strings.hh"
#include "types.hh" #include "types.hh"
#include "file-descriptor.hh" #include "file-descriptor.hh"
@ -340,6 +342,13 @@ std::unique_ptr<FinishSink> sourceToSink(std::function<void(Source &)> fun);
*/ */
std::unique_ptr<Source> sinkToSource(std::function<void(Sink &)> fun); std::unique_ptr<Source> sinkToSource(std::function<void(Sink &)> fun);
inline Sink & operator<<(Sink & sink, Generator<Bytes> && g)
{
while (auto buffer = g.next()) {
sink(std::string_view(buffer->data(), buffer->size()));
}
return sink;
}
void writePadding(size_t len, Sink & sink); void writePadding(size_t len, Sink & sink);
void writeString(std::string_view s, Sink & sink); void writeString(std::string_view s, Sink & sink);