From 82d38412e2688bb41967b301ce0de084e82cdeef Mon Sep 17 00:00:00 2001 From: Josh Blum Date: Tue, 14 Feb 2012 16:34:36 -0800 Subject: b100: use frame boundary to calculate frame size --- host/lib/transport/usb_zero_copy_wrapper.cpp | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) (limited to 'host/lib/transport') diff --git a/host/lib/transport/usb_zero_copy_wrapper.cpp b/host/lib/transport/usb_zero_copy_wrapper.cpp index 07105cad3..690e5aaa2 100644 --- a/host/lib/transport/usb_zero_copy_wrapper.cpp +++ b/host/lib/transport/usb_zero_copy_wrapper.cpp @@ -112,6 +112,7 @@ class usb_zero_copy_wrapper : public usb_zero_copy{ public: usb_zero_copy_wrapper(sptr usb_zc, const size_t frame_boundary): _internal_zc(usb_zc), + _frame_boundary(frame_boundary), _available_recv_buffs(this->get_num_recv_frames()), _mrb_pool(this->get_num_recv_frames(), usb_zero_copy_wrapper_mrb(_available_recv_buffs)), _the_only_msb(usb_zero_copy_wrapper_msb(usb_zc, frame_boundary)) @@ -157,7 +158,7 @@ public: } size_t get_recv_frame_size(void) const{ - return _internal_zc->get_recv_frame_size(); + return std::min(_frame_boundary, _internal_zc->get_recv_frame_size()); } managed_send_buffer::sptr get_send_buff(double timeout){ @@ -169,11 +170,12 @@ public: } size_t get_send_frame_size(void) const{ - return _internal_zc->get_send_frame_size(); + return std::min(_frame_boundary, _internal_zc->get_send_frame_size()); } private: sptr _internal_zc; + size_t _frame_boundary; bounded_buffer _available_recv_buffs; std::vector _mrb_pool; usb_zero_copy_wrapper_msb _the_only_msb; -- cgit v1.2.3