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http2: Fix bug that data to be drained are overwritten by pending "paused" data

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This commit is contained in:
Tatsuhiro Tsujikawa 2015-05-07 23:19:08 +09:00 committed by Daniel Stenberg
parent d722138f29
commit 2ce2f03007
1 changed files with 16 additions and 17 deletions
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33
lib/http2.c
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@ -831,7 +831,22 @@ static ssize_t http2_recv(struct connectdata *conn, int sockindex,
return ncopy;
}
if(stream->data) {
infof(data, "http2_recv: %d bytes buffer at %p (stream %x)\n",
len, mem, stream->stream_id);
if(data->state.drain) {
DEBUGF(infof(data, "http2_recv: DRAIN %zu bytes stream %x!! (%p => %p)\n",
stream->memlen, stream->stream_id,
stream->mem, mem));
if(mem != stream->mem) {
/* if we didn't get the same buffer this time, we must move the data to
the beginning */
memmove(mem, stream->mem, stream->memlen);
stream->len = len - stream->memlen;
stream->mem = mem;
}
}
else if(stream->data) {
nread = MIN(len, stream->datalen);
memcpy(mem, stream->data, nread);
@ -851,22 +866,6 @@ static ssize_t http2_recv(struct connectdata *conn, int sockindex,
(int)nread);
return nread;
}
infof(data, "http2_recv: %d bytes buffer at %p (stream %x)\n",
len, mem, stream->stream_id);
if(data->state.drain) {
DEBUGF(infof(data, "http2_recv: DRAIN %zu bytes stream %x!! (%p => %p)\n",
stream->memlen, stream->stream_id,
stream->mem, mem));
if(mem != stream->mem) {
/* if we didn't get the same buffer this time, we must move the data to
the beginning */
memmove(mem, stream->mem, stream->memlen);
stream->len = len - stream->memlen;
stream->mem = mem;
}
}
else if(httpc->pause_stream_id) {
/* If a stream paused nghttp2_session_mem_recv previously, and has
not processed all data, it still refers to the buffer in