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https://github.com/MusicPlayerDaemon/MPD/issues/1952
https://github.com/curl/curl/issues/12632
https://github.com/curl/curl/commit/8e2d7b9fa4264b94bd1d9838c84d16e4cd33fbea
From 8e2d7b9fa4264b94bd1d9838c84d16e4cd33fbea Mon Sep 17 00:00:00 2001
From: Stefan Eissing <stefan@eissing.org>
Date: Thu, 4 Jan 2024 10:06:17 +0100
Subject: [PATCH] http: adjust_pollset fix
do not add a socket for POLLIN when the transfer does not want to send
(for example is paused).
Follow-up to 47f5b1a
Reported-by: bubbleguuum on github
Fixes #12632
Closes #12633
--- a/lib/cf-socket.c
+++ b/lib/cf-socket.c
@@ -1243,7 +1243,7 @@ static void cf_socket_adjust_pollset(struct Curl_cfilter *cf,
if(ctx->sock != CURL_SOCKET_BAD) {
if(!cf->connected)
Curl_pollset_set_out_only(data, ps, ctx->sock);
- else
+ else if(CURL_WANT_RECV(data))
Curl_pollset_add_in(data, ps, ctx->sock);
CURL_TRC_CF(data, cf, "adjust_pollset -> %d socks", ps->num);
}
--- a/lib/http2.c
+++ b/lib/http2.c
@@ -2341,8 +2341,8 @@ static void cf_h2_adjust_pollset(struct Curl_cfilter *cf,
bool c_exhaust, s_exhaust;
CF_DATA_SAVE(save, cf, data);
- c_exhaust = !nghttp2_session_get_remote_window_size(ctx->h2);
- s_exhaust = stream && stream->id >= 0 &&
+ c_exhaust = want_send && !nghttp2_session_get_remote_window_size(ctx->h2);
+ s_exhaust = want_send && stream && stream->id >= 0 &&
!nghttp2_session_get_stream_remote_window_size(ctx->h2,
stream->id);
want_recv = (want_recv || c_exhaust || s_exhaust);
--- a/lib/vquic/curl_ngtcp2.c
+++ b/lib/vquic/curl_ngtcp2.c
@@ -1166,9 +1166,10 @@ static void cf_ngtcp2_adjust_pollset(struct Curl_cfilter *cf,
bool c_exhaust, s_exhaust;
CF_DATA_SAVE(save, cf, data);
- c_exhaust = !ngtcp2_conn_get_cwnd_left(ctx->qconn) ||
- !ngtcp2_conn_get_max_data_left(ctx->qconn);
- s_exhaust = stream && stream->id >= 0 && stream->quic_flow_blocked;
+ c_exhaust = want_send && (!ngtcp2_conn_get_cwnd_left(ctx->qconn) ||
+ !ngtcp2_conn_get_max_data_left(ctx->qconn));
+ s_exhaust = want_send && stream && stream->id >= 0 &&
+ stream->quic_flow_blocked;
want_recv = (want_recv || c_exhaust || s_exhaust);
want_send = (!s_exhaust && want_send) ||
!Curl_bufq_is_empty(&ctx->q.sendbuf);
--- a/lib/vquic/curl_quiche.c
+++ b/lib/vquic/curl_quiche.c
@@ -1189,7 +1189,7 @@ static void cf_quiche_adjust_pollset(struct Curl_cfilter *cf,
c_exhaust = FALSE; /* Have not found any call in quiche that tells
us if the connection itself is blocked */
- s_exhaust = stream && stream->id >= 0 &&
+ s_exhaust = want_send && stream && stream->id >= 0 &&
(stream->quic_flow_blocked || !stream_is_writeable(cf, data));
want_recv = (want_recv || c_exhaust || s_exhaust);
want_send = (!s_exhaust && want_send) ||
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