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/* Copyright (C) 2017 Ernestas Kulik <ernestask@gnome.org>
*
* This file is part of Nautilus.
*
* Nautilus is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 2 of the License, or
* (at your option) any later version.
*
* Nautilus is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with Nautilus. If not, see <https://www.gnu.org/licenses/>.
*/
#include "nautilus-scheduler-private.h"
typedef struct
{
GThreadPool *thread_pool;
} NautilusSchedulerPrivate;
G_DEFINE_TYPE_WITH_PRIVATE (NautilusScheduler, nautilus_scheduler, G_TYPE_OBJECT)
struct NautilusThreadWork
{
NautilusCallback func;
gpointer func_data;
};
static void
finalize (GObject *object)
{
NautilusScheduler *scheduler;
NautilusSchedulerPrivate *priv;
scheduler = NAUTILUS_SCHEDULER (object);
priv = nautilus_scheduler_get_instance_private (scheduler);
g_thread_pool_free (priv->thread_pool, TRUE, TRUE);
G_OBJECT_CLASS (nautilus_scheduler_parent_class)->finalize (object);
}
static void
queue (NautilusScheduler *scheduler,
NautilusCallback func,
gpointer func_data)
{
NautilusSchedulerPrivate *priv;
NautilusThreadWork *work;
priv = nautilus_scheduler_get_instance_private (scheduler);
work = nautilus_thread_work_new (func, func_data);
(void) g_thread_pool_push (priv->thread_pool, work, NULL);
}
static void
nautilus_scheduler_class_init (NautilusSchedulerClass *klass)
{
GObjectClass *object_class;
object_class = G_OBJECT_CLASS (klass);
object_class->finalize = finalize;
klass->queue = queue;
}
static void
nautilus_scheduler_init (NautilusScheduler *self)
{
}
void
nautilus_scheduler_queue (NautilusScheduler *scheduler,
NautilusCallback func,
gpointer func_data)
{
g_return_if_fail (NAUTILUS_IS_SCHEDULER (scheduler));
g_return_if_fail (func != NULL);
NAUTILUS_SCHEDULER_GET_CLASS (scheduler)->queue (scheduler, func, func_data);
}
static void
thread_pool_func (gpointer data,
gpointer user_data)
{
g_autoptr (NautilusThreadWork) work = NULL;
work = data;
nautilus_thread_work_run (work);
}
static NautilusScheduler *
nautilus_scheduler_new (gint max_threads)
{
NautilusScheduler *scheduler;
NautilusSchedulerPrivate *priv;
scheduler = g_object_new (NAUTILUS_TYPE_SCHEDULER, NULL);
priv = nautilus_scheduler_get_instance_private (scheduler);
priv->thread_pool = g_thread_pool_new (thread_pool_func, NULL, max_threads, FALSE, NULL);
return scheduler;
}
static gpointer
create_default_instance (gpointer data)
{
(void) data;
return nautilus_scheduler_new (16);
}
NautilusScheduler *
nautilus_scheduler_get_default (void)
{
static GOnce once = G_ONCE_INIT;
g_once (&once, create_default_instance, NULL);
return g_object_ref (once.retval);
}
void
nautilus_thread_work_run (NautilusThreadWork *work)
{
work->func (work->func_data);
}
void
nautilus_thread_work_free (NautilusThreadWork *work)
{
g_free (work);
}
NautilusThreadWork *
nautilus_thread_work_new (NautilusCallback callback,
gpointer data)
{
NautilusThreadWork *work;
work = g_new0 (NautilusThreadWork, 1);
work->func = callback;
work->func_data = data;
return work;
}
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