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-rw-r--r--third_party/nix/src/libutil/compression.hh28
1 files changed, 28 insertions, 0 deletions
diff --git a/third_party/nix/src/libutil/compression.hh b/third_party/nix/src/libutil/compression.hh
new file mode 100644
index 000000000000..dd666a4e19fd
--- /dev/null
+++ b/third_party/nix/src/libutil/compression.hh
@@ -0,0 +1,28 @@
+#pragma once
+
+#include "ref.hh"
+#include "types.hh"
+#include "serialise.hh"
+
+#include <string>
+
+namespace nix {
+
+struct CompressionSink : BufferedSink
+{
+    virtual void finish() = 0;
+};
+
+ref<std::string> decompress(const std::string & method, const std::string & in);
+
+ref<CompressionSink> makeDecompressionSink(const std::string & method, Sink & nextSink);
+
+ref<std::string> compress(const std::string & method, const std::string & in, const bool parallel = false);
+
+ref<CompressionSink> makeCompressionSink(const std::string & method, Sink & nextSink, const bool parallel = false);
+
+MakeError(UnknownCompressionMethod, Error);
+
+MakeError(CompressionError, Error);
+
+}