QUIC: stream flow control refactored.

- Function ngx_quic_control_flow() is introduced.  This functions does
both MAX_DATA and MAX_STREAM_DATA flow controls.  The function is called
from STREAM and RESET_STREAM frame handlers.  Previously, flow control
was only accounted for STREAM.  Also, MAX_DATA flow control was not accounted
at all.

- Function ngx_quic_update_flow() is introduced.  This function advances flow
control windows and sends MAX_DATA/MAX_STREAM_DATA.  The function is called
from RESET_STREAM frame handler, stream cleanup handler and stream recv()
handler.

1 files changed, 1 insertions, 0 deletions

diff --git a/src/event/quic/ngx_event_quic.h b/src/event/quic/ngx_event_quic.h
index 6d4308afa..fe0f7fef3 100644
--- a/src/event/quic/ngx_event_quic.h
+++ b/src/event/quic/ngx_event_quic.h
@@ -75,6 +75,7 @@ struct ngx_quic_stream_s {
     uint64_t                   send_max_data;
     uint64_t                   recv_max_data;
     uint64_t                   recv_offset;
+    uint64_t                   recv_window;
     uint64_t                   recv_last;
     uint64_t                   final_size;
     ngx_chain_t               *in;