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https://gitlab.gnome.org/GNOME/glib.git
synced 2025-08-22 08:58:54 +02:00
8aeca4fa64
By default (on POSIX) we would be inheriting thread priorities from the thread that pushed a new task on non-exclusive thread pools and causes a new thread to be created. This can cause any non-exclusive thread pool to accidentally contain threads of different priorities, or e.g. threads with real-time priority. To prevent this, custom handling for setting the scheduler settings for Linux and Windows is added and as a fallback for other platforms a new thread is added that is responsible for spawning threads for non-exclusive thread pools. Fixes https://gitlab.gnome.org/GNOME/glib/issues/1834
93 lines
3.0 KiB
C
93 lines
3.0 KiB
C
/* GLIB - Library of useful routines for C programming
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*
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* gthreadprivate.h - GLib internal thread system related declarations.
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*
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* Copyright (C) 2003 Sebastian Wilhelmi
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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 License
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* along with this library; if not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef __G_THREADPRIVATE_H__
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#define __G_THREADPRIVATE_H__
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#include "deprecated/gthread.h"
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typedef struct _GRealThread GRealThread;
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struct _GRealThread
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{
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GThread thread;
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gint ref_count;
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gboolean ours;
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gchar *name;
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gpointer retval;
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};
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/* system thread implementation (gthread-posix.c, gthread-win32.c) */
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/* Platform-specific scheduler settings for a thread */
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typedef struct _GThreadSchedulerSettings GThreadSchedulerSettings;
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/* TODO: Add the same for macOS and the BSDs */
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#if defined(__linux__)
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struct _GThreadSchedulerSettings
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{
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struct sched_attr *attr;
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};
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#define HAVE_GTHREAD_SCHEDULER_SETTINGS 1
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#elif defined(G_OS_WIN32)
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struct _GThreadSchedulerSettings
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{
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gint thread_prio;
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};
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#define HAVE_GTHREAD_SCHEDULER_SETTINGS 1
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#endif
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void g_system_thread_wait (GRealThread *thread);
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GRealThread *g_system_thread_new (GThreadFunc proxy,
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gulong stack_size,
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const GThreadSchedulerSettings *scheduler_settings,
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const char *name,
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GThreadFunc func,
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gpointer data,
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GError **error);
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void g_system_thread_free (GRealThread *thread);
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void g_system_thread_exit (void);
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void g_system_thread_set_name (const gchar *name);
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void g_system_thread_get_scheduler_settings (GThreadSchedulerSettings *scheduler_settings);
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/* gthread.c */
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GThread *g_thread_new_internal (const gchar *name,
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GThreadFunc proxy,
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GThreadFunc func,
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gpointer data,
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gsize stack_size,
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const GThreadSchedulerSettings *scheduler_settings,
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GError **error);
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void g_thread_get_scheduler_settings (GThreadSchedulerSettings *scheduler_settings);
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gpointer g_thread_proxy (gpointer thread);
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gpointer g_private_set_alloc0 (GPrivate *key,
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gsize size);
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#endif /* __G_THREADPRIVATE_H__ */
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