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695bdb3841
The g_idle_add function adds a callback to the primary GMainContext. To workaround the GSource unref bugs, we need to add our callbacks to the GMainContext that is associated with the GSource being unref'd. Thus code using the per-VM virEventThread must use its private GMainContext. Reviewed-by: Martin Kletzander <mkletzan@redhat.com> Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
89 lines
3.2 KiB
C
89 lines
3.2 KiB
C
/*
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* Copyright (C) 2019 Red Hat, Inc.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library. If not, see
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* <http://www.gnu.org/licenses/>.
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*/
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#pragma once
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#include <glib.h>
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#include <glib/gstdio.h>
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#include <glib-object.h>
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#if GLIB_CHECK_VERSION(2, 67, 0)
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# if defined(__clang__)
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/*
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* Clang detects (valid) issue in G_DEFINE_TYPE and derivatives starting with
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* glib >= 2.67.0. See https://gitlab.gnome.org/GNOME/glib/-/issues/600
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*
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* For that we need to disable the one check that produces an error in our
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* builds when using any G_DEFINE_TYPE* macro. Thankfully all those macros end
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* up using _G_DEFINE_TYPE_EXTENDED_BEGIN. Because with that we can redefine
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* this one macro to cover all use cases. The macro is defined the same way it
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* is defined in glib (with a very low probability of being changed thanks to a
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* comment above it).
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*/
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# undef _G_DEFINE_TYPE_EXTENDED_BEGIN
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# define _G_DEFINE_TYPE_EXTENDED_BEGIN(TypeName, type_name, TYPE_PARENT, flags) \
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_Pragma("GCC diagnostic push") \
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_Pragma("GCC diagnostic ignored \"-Wincompatible-pointer-types-discards-qualifiers\"") \
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_G_DEFINE_TYPE_EXTENDED_BEGIN_PRE(TypeName, type_name, TYPE_PARENT) \
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_G_DEFINE_TYPE_EXTENDED_BEGIN_REGISTER(TypeName, type_name, TYPE_PARENT, flags) \
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_Pragma("GCC diagnostic pop")
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# endif /* __clang__ */
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#else /* GLib < 2.67.0 */
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/*
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* ...meanwhile GCC >= 11 has started issuing warnings about volatile
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* from the old G_DEFINE_TYPE macro impl. IOW the new macros impls fixed
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* new GCC, but broke CLang
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*/
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# if !defined(__clang__) && __GNUC_PREREQ (11, 0)
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# undef _G_DEFINE_TYPE_EXTENDED_BEGIN
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# define _G_DEFINE_TYPE_EXTENDED_BEGIN(TypeName, type_name, TYPE_PARENT, flags) \
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_Pragma("GCC diagnostic push") \
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_Pragma("GCC diagnostic ignored \"-Wincompatible-pointer-types\"") \
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_G_DEFINE_TYPE_EXTENDED_BEGIN_PRE(TypeName, type_name, TYPE_PARENT) \
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_G_DEFINE_TYPE_EXTENDED_BEGIN_REGISTER(TypeName, type_name, TYPE_PARENT, flags) \
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_Pragma("GCC diagnostic pop")
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# endif /* !clang && GCC >= 11.0 */
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#endif /* GLib < 2.67.0 */
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gchar * vir_g_canonicalize_filename(const gchar *filename,
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const gchar *relative_to);
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gint vir_g_fsync(gint fd);
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char *vir_g_strdup_printf(const char *msg, ...)
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G_GNUC_PRINTF(1, 2);
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char *vir_g_strdup_vprintf(const char *msg, va_list args)
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G_GNUC_PRINTF(1, 0);
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#if !GLIB_CHECK_VERSION(2, 64, 0)
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# define g_strdup_printf vir_g_strdup_printf
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# define g_strdup_vprintf vir_g_strdup_vprintf
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#endif
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#define g_canonicalize_filename vir_g_canonicalize_filename
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#undef g_fsync
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#define g_fsync vir_g_fsync
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void vir_g_source_unref(GSource *src, GMainContext *ctx);
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