109 lines
2.0 KiB
C
109 lines
2.0 KiB
C
/*
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* Copyright 2013 (c) Anna Schumaker.
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*/
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#include <core/idle.h>
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#include <glib.h>
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struct idle_task {
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bool (*idle_func)(void *);
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void *idle_data;
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enum idle_sync_t idle_sync;
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};
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static GThreadPool *idle_pool = NULL;
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static GQueue idle_queue = G_QUEUE_INIT;
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static unsigned int queued = 0;
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static unsigned int serviced = 0;
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void __idle_free_task(struct idle_task *task)
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{
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g_free(task);
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g_atomic_int_inc(&serviced);
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}
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bool __idle_run_task(struct idle_task *task)
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{
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bool finished = task->idle_func(task->idle_data);
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if (finished)
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__idle_free_task(task);
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return finished;
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}
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void __idle_thread(gpointer task, gpointer data)
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{
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if (!__idle_run_task(task))
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g_thread_pool_push(idle_pool, task, NULL);
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}
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void idle_init()
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{
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idle_pool = g_thread_pool_new(__idle_thread, NULL, 1, true, NULL);
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}
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#ifdef CONFIG_TESTING
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void idle_init_sync()
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{
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}
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#endif /* CONFIG_TESTING */
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void idle_deinit()
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{
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struct idle_task *task;
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while (!g_queue_is_empty(&idle_queue)) {
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task = g_queue_pop_head(&idle_queue);
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g_free(task);
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}
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if (idle_pool)
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g_thread_pool_free(idle_pool, true, false);
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queued = 0;
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serviced = 0;
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}
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void idle_schedule(enum idle_sync_t sync, bool (*func)(void *), void *data)
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{
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struct idle_task *task = g_malloc(sizeof(struct idle_task));
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task->idle_func = func;
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task->idle_data = data;
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task->idle_sync = sync;
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g_queue_push_tail(&idle_queue, task);
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g_atomic_int_inc(&queued);
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}
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bool idle_run_task()
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{
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struct idle_task *task;
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if (!g_queue_is_empty(&idle_queue)) {
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task = g_queue_pop_head(&idle_queue);
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if (task->idle_sync == IDLE_ASYNC) {
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if (idle_pool)
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g_thread_pool_push(idle_pool, task, NULL);
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else
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__idle_free_task(task);
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} else if (!__idle_run_task(task))
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g_queue_push_tail(&idle_queue, task);
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}
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if (g_atomic_int_get(&queued) != g_atomic_int_get(&serviced))
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return true;
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queued = 0;
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serviced = 0;
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return false;
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}
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float idle_progress()
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{
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if (g_atomic_int_get(&serviced) == 0 &&
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g_atomic_int_get(&queued) == 0)
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return 1.0;
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return (float)g_atomic_int_get(&serviced) / (float)queued;
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}
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