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Improve 'coroutine has finished' error message

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This commit is contained in:
Eelco Dolstra 2018-08-21 15:22:04 +02:00
parent 6317c65937
commit ebe3d2d370
3 changed files with 16 additions and 7 deletions
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6
src/libutil/serialise.hh
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@ -214,7 +214,11 @@ struct LambdaSource : Source
/* Convert a function that feeds data into a Sink into a Source. The
Source executes the function as a coroutine. */
std::unique_ptr<Source> sinkToSource(std::function<void(Sink &)> fun);
std::unique_ptr<Source> sinkToSource(
std::function<void(Sink &)> fun,
std::function<void()> eof = []() {
throw EndOfFile("coroutine has finished");
});
void writePadding(size_t len, Sink & sink);