[PATCH 1/2] splitfx: reduce syscalls for writing comments file

[Eric Wong <e@yhbt.net>]

We can flush when all comments are buffered to avoid a writev(2)
syscall on every comment.
---
 lib/dtas/splitfx.rb | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/dtas/splitfx.rb b/lib/dtas/splitfx.rb
index 8ad919e..384df0f 100644
--- a/lib/dtas/splitfx.rb
+++ b/lib/dtas/splitfx.rb
@@ -207,11 +207,11 @@ def splitfx_spawn(target, t, opts)
       env["DITHERFX"] = "dither -s"
     end
     comments = Tempfile.new(%W(dtas-splitfx-#{t.comments["TRACKNUMBER"]} .txt))
-    comments.sync = true
     t.comments.each do |k,v|
       env[k] = v.to_s
       comments.puts("#{k}=#{v}")
     end
+    comments.flush
     env["COMMENTS"] = "--comment-file=#{comments.path}"
     infile_env(env, @infile)
     outarg = outfmt.to_sox_arg