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Implement flow control for http.

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* grub-core/net/http.c (parse_line): Handle response 206.
	(http_receive): Stall if too many packets are in the queue.
	(http_establish): Fix range header.
	(http_seek): Fix double free.
	(http_close): Likewise.
	(http_packets_pulled): New function.
	(grub_http_protocol): Set http_seek
	* grub-core/net/tcp.c (grub_net_tcp_socket): New field `i_stall'.
	(ack_real): Set window depending on i_stall.
	(grub_net_send_tcp_packet): Likewise.
	(grub_net_tcp_stall): New function.
	(grub_net_tcp_unstall): Likewise.
	* include/grub/net/tcp.h (grub_net_tcp_stall): New proto.
	(grub_net_tcp_unstall): Likewise.
This commit is contained in:
Vladimir 'phcoder' Serbinenko 2012-06-22 22:09:31 +02:00
parent bd407d6e5e
commit 982f1909cf
4 changed files with 98 additions and 14 deletions
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ChangeLog
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@ -1,3 +1,22 @@
2012-06-22 Vladimir Serbinenko <phcoder@gmail.com>
Implement flow control for http.
* grub-core/net/http.c (parse_line): Handle response 206.
(http_receive): Stall if too many packets are in the queue.
(http_establish): Fix range header.
(http_seek): Fix double free.
(http_close): Likewise.
(http_packets_pulled): New function.
(grub_http_protocol): Set http_seek
* grub-core/net/tcp.c (grub_net_tcp_socket): New field `i_stall'.
(ack_real): Set window depending on i_stall.
(grub_net_send_tcp_packet): Likewise.
(grub_net_tcp_stall): New function.
(grub_net_tcp_unstall): Likewise.
* include/grub/net/tcp.h (grub_net_tcp_stall): New proto.
(grub_net_tcp_unstall): Likewise.
2012-06-22 Vladimir Serbinenko <phcoder@gmail.com>
* grub-core/net/tftp.c: Decrease stall to 50 packets.