forked from mirrors/kore
Another round of spdy/3.1 improvements.
* Always make sure we end the stream properly * Check for SPDY_FLOW_WINDOW_MAX on window frame updates * Kill SPDY_STREAM_BLOCKING, once flow control kicks in its per session
This commit is contained in:
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1ef0f3423b
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10284d59b6
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@ -1,5 +1,5 @@
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/*
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* Copyright (c) 2013 Joris Vink <joris@coders.se>
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* Copyright (c) 2013-2014 Joris Vink <joris@coders.se>
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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@ -489,6 +489,8 @@ void spdy_header_block_add(struct spdy_header_block *,
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char *, char *);
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u_int8_t *spdy_header_block_release(struct connection *,
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struct spdy_header_block *, u_int32_t *);
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void spdy_stream_close(struct connection *,
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struct spdy_stream *, int);
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struct spdy_header_block *spdy_header_block_create(int);
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@ -1,5 +1,5 @@
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/*
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* Copyright (c) 2013 Joris Vink <joris@coders.se>
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* Copyright (c) 2013-2014 Joris Vink <joris@coders.se>
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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@ -107,9 +107,13 @@ extern const unsigned char SPDY_dictionary_txt[];
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#define SPDY_HBLOCK_NORMAL 0
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#define SPDY_HBLOCK_DELAYED_ALLOC 1
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#define SPDY_FLOW_WINDOW_MAX 2147483647
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/* internal flags (make sure they don't clash with SPDY stream flags) */
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#define SPDY_KORE_FIN 0x10
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#define SPDY_DATAFRAME_PRELUDE 0x20
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#define SPDY_STREAM_BLOCKING 0x40
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#define SPDY_KEEP_NETBUFS 0
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#define SPDY_REMOVE_NETBUFS 1
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#endif /* !__H_SPDY_H */
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@ -1089,6 +1089,9 @@ http_response_spdy(struct http_request *req, struct connection *c,
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if (d != NULL)
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net_send_queue(c, d, len, s, NETBUF_LAST_CHAIN);
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} else {
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spdy_frame_send(c, SPDY_DATA_FRAME, FLAG_FIN, 0, s, 0);
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spdy_stream_close(c, req->stream, SPDY_KEEP_NETBUFS);
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}
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}
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25
src/net.c
25
src/net.c
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@ -1,5 +1,5 @@
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/*
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* Copyright (c) 2013 Joris Vink <joris@coders.se>
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* Copyright (c) 2013-2014 Joris Vink <joris@coders.se>
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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@ -78,7 +78,6 @@ net_send_queue(struct connection *c, void *data, u_int32_t len,
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memcpy(nb->buf, d, nb->b_len);
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if (before == NETBUF_BEFORE_CHAIN) {
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kore_debug("net_send_queue(): %p->new", c->snb);
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TAILQ_INSERT_BEFORE(c->snb, nb, list);
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} else {
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TAILQ_INSERT_TAIL(&(c->send_queue), nb, list);
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@ -154,10 +153,8 @@ net_send(struct connection *c)
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{
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int r;
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u_int32_t len, smin;
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struct netbuf *nb, *next;
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c->snb = TAILQ_FIRST(&(c->send_queue));
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kore_debug("net_send(%p, %d, %d)", c->snb, c->snb->s_off, c->snb->b_len);
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if (c->snb->b_len != 0) {
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if (c->snb->stream != NULL &&
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(c->snb->stream->flags & SPDY_DATAFRAME_PRELUDE)) {
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@ -167,25 +164,6 @@ net_send(struct connection *c)
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}
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c->snb = TAILQ_FIRST(&(c->send_queue));
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kore_debug("after (%p, %d, %d)",
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c->snb, c->snb->s_off, c->snb->b_len);
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}
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if (c->snb->stream != NULL &&
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(c->snb->stream->flags & SPDY_STREAM_BLOCKING)) {
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kore_debug("stream block, resorting", c->snb);
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for (nb = TAILQ_FIRST(&(c->send_queue)); nb != NULL;
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nb = next) {
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next = TAILQ_NEXT(nb, list);
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if (nb->stream != c->snb->stream)
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continue;
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TAILQ_REMOVE(&(c->send_queue), nb, list);
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TAILQ_INSERT_TAIL(&(c->send_queue), nb, list);
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}
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c->snb = NULL;
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return (KORE_RESULT_OK);
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}
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smin = c->snb->b_len - c->snb->s_off;
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@ -195,7 +173,6 @@ net_send(struct connection *c)
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}
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len = MIN(NETBUF_SEND_PAYLOAD_MAX, smin);
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kore_debug("chosen len: %d", len);
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#if !defined(KORE_BENCHMARK)
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r = SSL_write(c->ssl,
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115
src/spdy.c
115
src/spdy.c
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@ -1,5 +1,5 @@
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/*
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* Copyright (c) 2013 Joris Vink <joris@coders.se>
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* Copyright (c) 2013-2014 Joris Vink <joris@coders.se>
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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@ -22,9 +22,6 @@
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#include "kore.h"
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#include "http.h"
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#define SPDY_KEEP_NETBUFS 0
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#define SPDY_REMOVE_NETBUFS 1
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static int spdy_ctrl_frame_syn_stream(struct netbuf *);
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static int spdy_ctrl_frame_rst_stream(struct netbuf *);
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static int spdy_ctrl_frame_settings(struct netbuf *);
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@ -36,8 +33,6 @@ static int spdy_data_frame_recv(struct netbuf *);
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static void spdy_block_write(struct connection *);
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static void spdy_enable_write(struct connection *);
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static void spdy_stream_close(struct connection *,
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struct spdy_stream *, int);
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static int spdy_zlib_inflate(struct connection *, u_int8_t *,
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size_t, u_int8_t **, u_int32_t *);
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static int spdy_zlib_deflate(struct connection *, u_int8_t *,
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@ -148,6 +143,10 @@ spdy_dataframe_begin(struct connection *c)
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{
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struct spdy_stream *s = c->snb->stream;
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kore_debug("spdy_dataframe_begin(%p): s:%u fz:%d sz:%d wz:%d cwz:%d",
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c, s->stream_id, s->frame_size, s->send_size, s->send_wsize,
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c->spdy_send_wsize);
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if (s->frame_size != 0 || s->send_size == 0) {
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fatal("spdy_dataframe_begin(): s:%u fz:%d - sz:%d",
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s->stream_id, s->frame_size, s->send_size);
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@ -421,7 +420,6 @@ spdy_update_wsize(struct connection *c, struct spdy_stream *s, u_int32_t len)
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s->flags |= SPDY_KORE_FIN;
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kore_debug("sending final frame %u", s->stream_id);
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spdy_frame_send(c, SPDY_DATA_FRAME, FLAG_FIN, 0, s, 0);
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return;
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}
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if (s->flags & (SPDY_KORE_FIN | FLAG_FIN)) {
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@ -432,17 +430,46 @@ spdy_update_wsize(struct connection *c, struct spdy_stream *s, u_int32_t len)
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kore_debug("%u remains half open\n", s->stream_id);
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}
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if ((int)s->send_wsize <= 0) {
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kore_debug("flow control kicked in for STREAM %p:%p", s, c);
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s->flags |= SPDY_STREAM_BLOCKING;
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}
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if ((int)c->spdy_send_wsize <= 0) {
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kore_debug("flow control kicked in for CONNECTION %p", c);
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if ((int)s->send_wsize <= 0 || (int)c->spdy_send_wsize <= 0) {
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kore_debug("flow control kicked in for %p:%p", c, s);
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spdy_block_write(c);
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}
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}
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void
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spdy_stream_close(struct connection *c, struct spdy_stream *s, int rb)
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{
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struct http_request *req;
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struct netbuf *nb, *nt;
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kore_debug("spdy_stream_close(%p, %p) <%d>", c, s, s->stream_id);
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if (rb) {
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for (nb = TAILQ_FIRST(&(c->send_queue)); nb != NULL; nb = nt) {
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nt = TAILQ_NEXT(nb, list);
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if (nb->stream == s) {
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kore_debug("spdy_stream_close: killing %p", nb);
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net_remove_netbuf(&(c->send_queue), nb);
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}
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}
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}
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TAILQ_REMOVE(&(c->spdy_streams), s, list);
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if (s->hblock != NULL) {
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if (s->hblock->header_block != NULL)
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kore_mem_free(s->hblock->header_block);
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kore_mem_free(s->hblock);
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}
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if (s->httpreq != NULL) {
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req = s->httpreq;
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req->stream = NULL;
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req->flags |= HTTP_REQUEST_DELETE;
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}
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kore_mem_free(s);
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}
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static int
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spdy_ctrl_frame_syn_stream(struct netbuf *nb)
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{
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/*
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* We don't care so much for what http_request_new() tells us here,
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* we just have to clean up after passing our stuff to it.
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*
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* In case of early errors (414, 500, ...) a net_send_flush() will
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* clear out this stream properly via spdy_stream_close().
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*/
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(void)http_request_new(c, s, host, method, path, version,
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(struct http_request **)&(s->httpreq));
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stream_id = net_read32(nb->buf + SPDY_FRAME_SIZE);
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window_size = net_read32(nb->buf + SPDY_FRAME_SIZE + 4);
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kore_debug("window_update: %u for %u", window_size, stream_id);
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r = KORE_RESULT_OK;
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if ((s = spdy_stream_lookup(c, stream_id)) != NULL) {
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s->send_wsize += window_size;
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if (c->flags & CONN_WRITE_BLOCK && s->send_wsize > 0) {
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s->flags &= ~SPDY_STREAM_BLOCKING;
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kore_debug("stream %u no longer blocket", s->stream_id);
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if ((u_int64_t)s->send_wsize > SPDY_FLOW_WINDOW_MAX) {
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kore_debug("window_update: size too large");
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return (KORE_RESULT_ERROR);
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}
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if (c->flags & CONN_WRITE_BLOCK &&
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s->send_wsize > 0 && c->spdy_send_wsize > 0) {
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kore_debug("stream %u no longer blocked", s->stream_id);
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spdy_enable_write(c);
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r = net_send_flush(c);
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}
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} else {
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c->spdy_send_wsize += window_size;
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if ((u_int64_t)c->spdy_send_wsize > SPDY_FLOW_WINDOW_MAX) {
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kore_debug("window_update: size too large");
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return (KORE_RESULT_ERROR);
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}
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if (c->flags & CONN_WRITE_BLOCK && c->spdy_send_wsize > 0) {
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kore_debug("session %p no longer blocked", c);
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spdy_enable_write(c);
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r = net_send_flush(c);
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}
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}
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kore_debug("window_update: %u for %u", window_size, stream_id);
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kore_debug("c->spdy_send_wsize = %u", c->spdy_send_wsize);
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return (r);
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}
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return (KORE_RESULT_OK);
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}
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static void
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spdy_stream_close(struct connection *c, struct spdy_stream *s, int rb)
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{
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struct http_request *req;
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struct netbuf *nb, *nt;
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kore_debug("spdy_stream_close(%p, %p) <%d>", c, s, s->stream_id);
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if (rb) {
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for (nb = TAILQ_FIRST(&(c->send_queue)); nb != NULL; nb = nt) {
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nt = TAILQ_NEXT(nb, list);
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if (nb->stream == s) {
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kore_debug("spdy_stream_close: killing %p", nb);
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net_remove_netbuf(&(c->send_queue), nb);
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}
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}
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}
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TAILQ_REMOVE(&(c->spdy_streams), s, list);
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if (s->hblock != NULL) {
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if (s->hblock->header_block != NULL)
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kore_mem_free(s->hblock->header_block);
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kore_mem_free(s->hblock);
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}
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if (s->httpreq != NULL) {
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req = s->httpreq;
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req->stream = NULL;
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req->flags |= HTTP_REQUEST_DELETE;
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}
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kore_mem_free(s);
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}
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static void
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spdy_block_write(struct connection *c)
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{
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