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Fix unusual control flow in stream_update_dep_set_rest

This commit is contained in:
Tatsuhiro Tsujikawa 2015-06-25 22:31:15 +09:00
parent d6ca95a0c9
commit bab99af565
1 changed files with 16 additions and 10 deletions
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26
lib/nghttp2_stream.c
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@ -155,6 +155,8 @@ int32_t nghttp2_stream_dep_distributed_weight(nghttp2_stream *stream,
}
static void stream_update_dep_set_rest(nghttp2_stream *stream) {
nghttp2_stream *si;
if (stream == NULL) {
return;
}
@ -167,14 +169,12 @@ static void stream_update_dep_set_rest(nghttp2_stream *stream) {
if (stream->dpri == NGHTTP2_STREAM_DPRI_TOP) {
stream->dpri = NGHTTP2_STREAM_DPRI_REST;
stream_update_dep_set_rest(stream->sib_next);
return;
}
stream_update_dep_set_rest(stream->sib_next);
stream_update_dep_set_rest(stream->dep_next);
for (si = stream->dep_next; si; si = si->sib_next) {
stream_update_dep_set_rest(si);
}
}
/*
@ -317,7 +317,7 @@ static nghttp2_stream *stream_get_dep_blocking(nghttp2_stream *stream) {
static int stream_update_dep_on_attach_item(nghttp2_stream *stream,
nghttp2_session *session) {
nghttp2_stream *blocking_stream;
nghttp2_stream *blocking_stream, *si;
int rv;
stream->dpri = NGHTTP2_STREAM_DPRI_REST;
@ -334,7 +334,9 @@ static int stream_update_dep_on_attach_item(nghttp2_stream *stream,
if (stream->sum_norest_weight == 0) {
stream_update_dep_sum_norest_weight(stream->dep_prev, stream->weight);
} else {
stream_update_dep_set_rest(stream->dep_next);
for (si = stream->dep_next; si; si = si->sib_next) {
stream_update_dep_set_rest(si);
}
}
if (!stream->item->queued) {
@ -776,6 +778,10 @@ int nghttp2_stream_dep_insert_subtree(nghttp2_stream *dep_stream,
blocking_stream = stream_get_dep_blocking(dep_stream);
if (blocking_stream) {
stream_update_dep_set_rest(stream);
}
if (dep_stream->dep_next) {
/* dep_stream->num_substreams includes dep_stream itself */
stream->num_substreams += dep_stream->num_substreams - 1;
@ -786,7 +792,9 @@ int nghttp2_stream_dep_insert_subtree(nghttp2_stream *dep_stream,
dep_next = dep_stream->dep_next;
if (!blocking_stream && dep_stream->sum_norest_weight) {
stream_update_dep_set_rest(dep_next);
for (si = dep_next; si; si = si->sib_next) {
stream_update_dep_set_rest(si);
}
}
link_dep(dep_stream, stream);
@ -812,8 +820,6 @@ int nghttp2_stream_dep_insert_subtree(nghttp2_stream *dep_stream,
stream_update_dep_length(dep_stream, delta_substreams);
if (blocking_stream) {
stream_update_dep_set_rest(stream);
return 0;
}