Initial version.

src/nxt_event_engine.h

@@ -0,0 +1,94 @@
+
+/*
+ * Copyright (C) Igor Sysoev
+ * Copyright (C) NGINX, Inc.
+ */
+
+#ifndef _NXT_EVENT_ENGINE_H_INCLUDED_
+#define _NXT_EVENT_ENGINE_H_INCLUDED_
+
+
+#define NXT_ENGINE_FIBERS      1
+
+
+typedef struct {
+    nxt_fd_t                   fds[2];
+    nxt_event_fd_t             event;
+} nxt_event_engine_pipe_t;
+
+
+struct nxt_event_engine_s {
+    const nxt_event_set_ops_t  *event;
+    nxt_event_set_t            *event_set;
+
+    nxt_event_timers_t         timers;
+
+    /* The engine ID, the main engine has ID 0. */
+    uint32_t                   id;
+
+    /*
+     * A pipe to pass event signals to the engine, if the engine's
+     * underlying event facility does not support user events.
+     */
+    nxt_event_engine_pipe_t    *pipe;
+
+    nxt_work_queue_t           accept_work_queue;
+    nxt_work_queue_t           read_work_queue;
+    nxt_work_queue_t           socket_work_queue;
+    nxt_work_queue_t           connect_work_queue;
+    nxt_work_queue_t           write_work_queue;
+    nxt_work_queue_t           shutdown_work_queue;
+    nxt_work_queue_t           close_work_queue;
+
+    nxt_locked_work_queue_t    work_queue;
+
+    nxt_event_signals_t        *signals;
+
+    nxt_fiber_main_t           *fibers;
+
+    uint8_t                    shutdown;  /* 1 bit */
+
+    uint32_t                   batch;
+    uint32_t                   connections;
+    uint32_t                   max_connections;
+
+    nxt_queue_t                listen_connections;
+    nxt_queue_t                idle_connections;
+};
+
+
+NXT_EXPORT nxt_event_engine_t *nxt_event_engine_create(nxt_thread_t *thr,
+    const nxt_event_set_ops_t *event_set, const nxt_event_sig_t *signals,
+    nxt_uint_t flags, nxt_uint_t batch);
+NXT_EXPORT nxt_int_t nxt_event_engine_change(nxt_thread_t *thr,
+    const nxt_event_set_ops_t *event_set, nxt_uint_t batch);
+NXT_EXPORT void nxt_event_engine_free(nxt_event_engine_t *engine);
+NXT_EXPORT void nxt_event_engine_start(nxt_event_engine_t *engine);
+
+NXT_EXPORT void nxt_event_engine_post(nxt_event_engine_t *engine,
+    nxt_work_handler_t handler, void *obj, void *data, nxt_log_t *log);
+NXT_EXPORT void nxt_event_engine_signal(nxt_event_engine_t *engine,
+    nxt_uint_t signo);
+
+
+nxt_inline nxt_event_engine_t *
+nxt_thread_event_engine(void)
+{
+    nxt_thread_t  *thr;
+
+    thr = nxt_thread();
+    return thr->engine;
+}
+
+
+nxt_inline nxt_work_queue_t *
+nxt_thread_main_work_queue(void)
+{
+    nxt_thread_t  *thr;
+
+    thr = nxt_thread();
+    return &thr->work_queue.main;
+}
+
+
+#endif /* _NXT_EVENT_ENGINE_H_INCLUDED_ */