And explain why this is doable for StringIO and not TmpIO, which is file-backed. --- lib/yahns/wbuf_lite.rb | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-)
diff --git a/lib/yahns/wbuf_lite.rb b/lib/yahns/wbuf_lite.rb index 2da5349..1902ce7 100644 --- a/lib/yahns/wbuf_lite.rb +++ b/lib/yahns/wbuf_lite.rb @@ -108,6 +108,12 @@ def wbuf_close(client) end def wbuf_abort - @tmpio = @tmpio.close if @tmpio + # we can safely truncate since this is a StringIO, we cannot do this + # with a real file because zero-copy with sendfile means truncating + # a while could clobber in-flight data + if @tmpio + @tmpio.truncate(0) + @tmpio = @tmpio.close + end end end -- EW -- unsubscribe: yahns-public+unsubscr...@yhbt.net archive: https://yhbt.net/yahns-public/
