workqueue: add nice support

[fio.git] / workqueue.h

diff --git a/workqueue.h b/workqueue.h
index 26b3aee1602171e9b090363c275003a53b13791a..f732b3089d0a47dac49bcaf35e266be70fa9dfa5 100644 (file)
--- a/workqueue.h
+++ b/workqueue.h
@@ -7,13 +7,48 @@ struct workqueue_work {
        struct flist_head list;
 };
 
-typedef void (workqueue_fn)(struct thread_data *, struct workqueue_work *);
+struct submit_worker {
+       pthread_t thread;
+       pthread_mutex_t lock;
+       pthread_cond_t cond;
+       struct flist_head work_list;
+       unsigned int flags;
+       unsigned int index;
+       uint64_t seq;
+       struct workqueue *wq;
+       void *private;
+};
+
+typedef void (workqueue_work_fn)(struct submit_worker *, struct workqueue_work *);
+typedef bool (workqueue_pre_sleep_flush_fn)(struct submit_worker *);
+typedef void (workqueue_pre_sleep_fn)(struct submit_worker *);
+typedef int (workqueue_alloc_worker_fn)(struct submit_worker *);
+typedef void (workqueue_free_worker_fn)(struct submit_worker *);
+typedef int (workqueue_init_worker_fn)(struct submit_worker *);
+typedef void (workqueue_exit_worker_fn)(struct submit_worker *, unsigned int *);
+typedef void (workqueue_update_acct_fn)(struct submit_worker *);
+
+struct workqueue_ops {
+       workqueue_work_fn *fn;
+       workqueue_pre_sleep_flush_fn *pre_sleep_flush_fn;
+       workqueue_pre_sleep_fn *pre_sleep_fn;
+
+       workqueue_update_acct_fn *update_acct_fn;
+
+       workqueue_alloc_worker_fn *alloc_worker_fn;
+       workqueue_free_worker_fn *free_worker_fn;
+
+       workqueue_init_worker_fn *init_worker_fn;
+       workqueue_exit_worker_fn *exit_worker_fn;
+
+       unsigned int nice;
+};
 
 struct workqueue {
        unsigned int max_workers;
 
        struct thread_data *td;
-       workqueue_fn *fn;
+       struct workqueue_ops ops;
 
        uint64_t work_seq;
        struct submit_worker *workers;
@@ -25,10 +60,52 @@ struct workqueue {
        volatile int wake_idle;
 };
 
-int workqueue_init(struct thread_data *td, struct workqueue *wq, workqueue_fn *fn, unsigned int max_workers);
+int workqueue_init(struct thread_data *td, struct workqueue *wq, struct workqueue_ops *ops, unsigned int max_workers);
 void workqueue_exit(struct workqueue *wq);
 
 bool workqueue_enqueue(struct workqueue *wq, struct workqueue_work *work);
 void workqueue_flush(struct workqueue *wq);
 
+static inline bool workqueue_pre_sleep_check(struct submit_worker *sw)
+{
+       struct workqueue *wq = sw->wq;
+
+       if (!wq->ops.pre_sleep_flush_fn)
+               return false;
+
+       return wq->ops.pre_sleep_flush_fn(sw);
+}
+
+static inline void workqueue_pre_sleep(struct submit_worker *sw)
+{
+       struct workqueue *wq = sw->wq;
+
+       if (wq->ops.pre_sleep_fn)
+               wq->ops.pre_sleep_fn(sw);
+}
+
+static inline int workqueue_init_worker(struct submit_worker *sw)
+{
+       struct workqueue *wq = sw->wq;
+
+       if (!wq->ops.init_worker_fn)
+               return 0;
+
+       return wq->ops.init_worker_fn(sw);
+}
+
+static inline void workqueue_exit_worker(struct submit_worker *sw,
+                                        unsigned int *sum_cnt)
+{
+       struct workqueue *wq = sw->wq;
+       unsigned int tmp = 1;
+
+       if (!wq->ops.exit_worker_fn)
+               return;
+
+       if (!sum_cnt)
+               sum_cnt = &tmp;
+
+       wq->ops.exit_worker_fn(sw, sum_cnt);
+}
 #endif