http: Fully flush local file both before/after server read

We do not want to end up in a code path while reading content
from the server where we have local data left to write, which
can happen if a previous read included both headers and content.

Restructure Flush() to accept a new argument to allow incomplete
flushs (which do not match our limit), so that it can flush as
far as possible, and modify Go() and use that before and after
reading from the server.

1 files changed, 1 insertions, 1 deletions

diff --git a/methods/basehttp.h b/methods/basehttp.h
index 5fdff69e0..4a83f319c 100644
--- a/methods/basehttp.h
+++ b/methods/basehttp.h
@@ -107,7 +107,7 @@ struct ServerState
    virtual bool Close() = 0;
    virtual bool InitHashes(HashStringList const &ExpectedHashes) = 0;
    virtual ResultState Die(RequestState &Req) = 0;
-   virtual bool Flush(FileFd * const File) = 0;
+   virtual bool Flush(FileFd *const File, bool MustComplete = false) = 0;
    virtual ResultState Go(bool ToFile, RequestState &Req) = 0;
    virtual Hashes * GetHashes() = 0;