Temporarily increase the ref count of a GSource to 1 while calling its
finalize() callback, so that the finalize() implementation can call
GSource methods (like g_source_set_ready_time()) without causing
critical warnings. It’s safe to call those methods at this point, as the
source has been destroyed, but nothing has been freed.
This is an indirect way of fixing a race between GCancellable and
GCancellableSource, whereby the GCancellable::cancelled callback for the
GCancellableSource is not disconnected until the GCancellableSource’s
finalize() function is called. Previously, this meant there was a window
in which the GCancellableSource’s ref count was 0, but the ::cancelled
callback was still connected, and could legitimately be called as a
result of another thread calling g_cancellable_cancel() on the
GCancellable. The callback calls g_source_set_ready_time() on the
GSource, and there’s no thread-safe way of checking whether the GSource
has been destroyed. Instead, we have to change GSource so its ref count
is only decremented to 0 inside the locked section in
g_source_unref_internal() *after* the finalize() function has been
called, and hence after the GCancellable::cancelled callback has been
disconnected. The use of g_cancellable_disconnect() ensures that the
callback disconnection is thread safe.
Signed-off-by: Philip Withnall <withnall@endlessm.com>
https://bugzilla.gnome.org/show_bug.cgi?id=781601
Since commit e4ee307 ("Do not wake up main loop if change is from same
thread", bug 761102), GMainContext uses context->owner to decide if the
event loop is being run in the current thread. However, what really
matters is the phase in the prepare/query/poll/check/dispatch sequence.
Wakeups are only needed between the end of prepare and the end of poll,
and then only if prepare found that no sources were ready.
There is no need to take threads into account, because prepare, check
and all callers of conditional_wakeup all look at the new need_wakeup
flag inside LOCK_CONTEXT/UNLOCK_CONTEXT.
With this change, g_main_context_is_owner and g_main_context_wait are
the only functions for which acquire/release matters, just like before
commit e4ee307.
Signed-off-by: Paolo Bonzini <bonzini@gnu.org>
Compiling with clang 3.8.1-18 (debian, x86_64) I ran across this
error:
gio-tool.c:40:31: error: format string is not a string literal [-Werror,-Wformat-nonliteral]
message = g_strdup_vprintf (format, args);
^~~~~~
gio-tool.c:55:31: error: format string is not a string literal [-Werror,-Wformat-nonliteral]
message = g_strdup_vprintf (format, args);
^~~~~~
2 errors generated.
To fix the first one, related with the function print_error(), this
patch adds to the function prototype a compiler's attribute.
For the second one, since the usage of that function is to print
one string and the format is already provided, the patch simplifies
the function by no receiving variadic arguments.
https://bugzilla.gnome.org/show_bug.cgi?id=781125
It's unnecessary, and only adds visual noise; we have been fairly
inconsistent in the past, but the semi-colon-less version clearly
dominates in the code base.
https://bugzilla.gnome.org/show_bug.cgi?id=669355
The g_drive_is_removable() support was added recently in gio/gvfs
(see Bug 765900 and Bug 765457). It was also added in gvfs-mount,
but we forgot to add it also in gio-tool-mount.
https://bugzilla.gnome.org/show_bug.cgi?id=776169
This patch contains the following changes:
- Print all errors with "gio: " prefix
- Print file uri in error for each tool allowing multiple locations
- Mark all error messages translatable
- Do not leak strings used in error messages
- Always start error messages with capital letter
- Unify some error messages across various tools
- Fix addional/missing new line characters
https://bugzilla.gnome.org/show_bug.cgi?id=776169
This is going to be checked again by g_object_new_with_properties()
and g_object_new_valist() anyway, so might just as well leave it
to those functions to do the check and only do it once. It doesn't
matter which function emits the critical warning in the end either,
as one has to look at a stack trace to find out what code triggered
it in any case.
https://bugzilla.gnome.org/show_bug.cgi?id=780908
The custom build rules did not have rules for x64 Debug builds during
the refactoring. Fix this by removing all Platform and Configuration
conditions for it, since this is done on are configs in the same manner.
Noted by Ignacio Casal Quinteiro.
The original patch really should have introduced a helper - among
other things it deserves a code comment. We're likely to make
further changes too, so it's obviously better to only do it in one
place.
See: https://bugzilla.gnome.org/show_bug.cgi?id=761102
Being able to determine that a certificate chain is invalid is not
considered an error, but success. This might not be obvious at first
due to the way the method is named and described currently. Since we
cannot change the name, let's improve the description and clarify this
aspect of its behaviour.
https://bugzilla.gnome.org/show_bug.cgi?id=780310
g_dbus_proxy_get_cached_property() and
g_dbus_proxy_get_cached_property_names() can both return NULL if the
property cache is empty. Avoid a crash if this situation arises (which
it looks like it could, from reading the code) by gracefully bailing out
on NULL return values.
Coverity issues: #1257044, #1257045https://bugzilla.gnome.org/show_bug.cgi?id=741229
socket->priv->timeout is only a guint, and the multiplication is
performed before it’s widened to gint64 to be stored in start_time
(thanks, C). This means any timeout of 50 days or more would overflow.
Fixing this bug makes me feel a real sense of self-worth.
Coverity ID: 1159478
Signed-off-by: Philip Withnall <withnall@endlessm.com>
request_completion is checked several blocks higher in the function.
Spotted by Coverity.
Coverity ID: 1373215
Signed-off-by: Philip Withnall <withnall@endlessm.com>
