Skip to content

Commit

Permalink
Merge pull request #180 from EdTheBearded/tor-3649
Browse files Browse the repository at this point in the history
[Scarthgap] ostree: backport Curl patch
  • Loading branch information
jsrc27 authored Nov 22, 2024
2 parents 46f6061 + 8e61a33 commit f47d52e
Show file tree
Hide file tree
Showing 4 changed files with 63 additions and 113 deletions.

This file was deleted.

This file was deleted.

Original file line number Diff line number Diff line change
@@ -0,0 +1,62 @@
From 4d755a85225ea0a02d4580d088bb8a97138cb040 Mon Sep 17 00:00:00 2001
From: Colin Walters <[email protected]>
Date: Wed, 18 Sep 2024 13:41:59 -0400
Subject: [PATCH] curl: Make socket callback during cleanup into no-op

Because curl_multi_cleanup may invoke callbacks, we effectively have
some circular references going on here. See discussion in

https://github.com/curl/curl/issues/14860

Basically what we do is the socket callback libcurl may invoke into a no-op when
we detect we're finalizing. The data structures are owned by this object and
not by the callbacks, and will be destroyed below. Note that
e.g. g_hash_table_unref() may itself invoke callbacks, which is where
some data is cleaned up.

Upstream-Status: Backport [https://github.com/ostreedev/ostree/pull/3307/commits/4d755a85225ea0a02d4580d088bb8a97138cb040]

Signed-off-by: Colin Walters <[email protected]>
---
src/libostree/ostree-fetcher-curl.c | 14 ++++++++++++++
1 file changed, 14 insertions(+)

diff --git a/src/libostree/ostree-fetcher-curl.c b/src/libostree/ostree-fetcher-curl.c
index d6902893ff..8054812f57 100644
--- a/src/libostree/ostree-fetcher-curl.c
+++ b/src/libostree/ostree-fetcher-curl.c
@@ -78,6 +78,7 @@ struct OstreeFetcher
struct curl_slist *extra_headers;
int tmpdir_dfd;
bool force_anonymous;
+ bool finalizing; // Set if we're in the process of teardown
char *custom_user_agent;
guint32 opt_low_speed_limit;
guint32 opt_low_speed_time;
@@ -180,6 +181,15 @@ _ostree_fetcher_finalize (GObject *object)
{
OstreeFetcher *self = OSTREE_FETCHER (object);

+ // Because curl_multi_cleanup may invoke callbacks, we effectively have
+ // some circular references going on here. See discussion in
+ // https://github.com/curl/curl/issues/14860
+ // Basically what we do is make most callbacks libcurl may invoke into no-ops when
+ // we detect we're finalizing. The data structures are owned by this object and
+ // not by the callbacks, and will be destroyed below. Note that
+ // e.g. g_hash_table_unref() may itself invoke callbacks, which is where
+ // some data is cleaned up.
+ self->finalizing = true;
curl_multi_cleanup (self->multi);
g_free (self->remote_name);
g_free (self->tls_ca_db_path);
@@ -528,6 +538,10 @@ sock_cb (CURL *easy, curl_socket_t s, int what, void *cbp, void *sockp)
OstreeFetcher *fetcher = cbp;
SockInfo *fdp = (SockInfo *)sockp;

+ // We do nothing if we're in the process of teardown; see below.
+ if (fetcher->finalizing)
+ return 0;
+
if (what == CURL_POLL_REMOVE)
{
if (!g_hash_table_remove (fetcher->sockets, fdp))
3 changes: 1 addition & 2 deletions recipes-extended/ostree/ostree_%.bbappend
Original file line number Diff line number Diff line change
Expand Up @@ -6,8 +6,7 @@ SRC_URI:append = " \
file://0001-update-default-grub-cfg-header.patch \
file://0002-Add-support-for-the-fdtfile-variable-in-uEnv.txt.patch \
file://0003-ostree-fetcher-curl-set-max-parallel-connections.patch \
file://0001-mount-Allow-building-when-macro-MOUNT_ATTR_IDMAP-is-.patch \
file://0002-mount-Allow-building-when-macro-LOOP_CONFIGURE-is-no.patch \
file://0004-curl-Make-socket-callback-during-cleanup-into-no-op.patch \
file://ostree-pending-reboot.service \
file://ostree-pending-reboot.path \
"
Expand Down

0 comments on commit f47d52e

Please sign in to comment.