From 33746aa40a70e38aa8386d81d1f22a884db3ed9f Mon Sep 17 00:00:00 2001 From: Eric Wong Date: Wed, 4 Feb 2015 07:09:29 +0000 Subject: buffer: allow limiting the amount of bytes output This will aid in allowing us to create effects which affect only a certain part of a track. --- lib/dtas/buffer/splice.rb | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-) (limited to 'lib/dtas/buffer/splice.rb') diff --git a/lib/dtas/buffer/splice.rb b/lib/dtas/buffer/splice.rb index b987f3a..02ce877 100644 --- a/lib/dtas/buffer/splice.rb +++ b/lib/dtas/buffer/splice.rb @@ -28,9 +28,10 @@ module DTAS::Buffer::Splice # :nodoc: IO.splice(@to_io, nil, DEVNULL, nil, bytes) end - def broadcast_one(targets) + def broadcast_one(targets, limit = nil) # single output is always non-blocking - s = IO.trysplice(@to_io, nil, targets[0], nil, MAX_AT_ONCE_1, F_MOVE) + limit ||= MAX_AT_ONCE_1 + s = IO.trysplice(@to_io, nil, targets[0], nil, limit, F_MOVE) if Symbol === s targets # our one and only target blocked on write else @@ -88,7 +89,7 @@ module DTAS::Buffer::Splice # :nodoc: most_teed end - def broadcast_inf(targets) + def broadcast_inf(targets, limit = nil) if targets.all?(&:ready_write_optimized?) blocked = [] elsif targets.none?(&:nonblock?) @@ -105,7 +106,7 @@ module DTAS::Buffer::Splice # :nodoc: end # don't pin too much on one target - bytes = MAX_AT_ONCE + bytes = limit || MAX_AT_ONCE last = targets.pop # we splice to the last one, tee to the rest # this may return zero if all targets were non-blocking -- cgit v1.2.3-24-ge0c7