added event compatibility layer

1 files changed, 119 insertions, 0 deletions

diff --git a/event.h b/event.h
new file mode 100644
index 0000000..731002f
--- /dev/null
+++ b/event.h
@@ -0,0 +1,119 @@
+/*
+ * libevent compatibility header, only core events supported
+ *
+ * Copyright (c) 2007      Marc Alexander Lehmann <libev@schmorp.de>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *
+ *     * Redistributions in binary form must reproduce the above
+ *       copyright notice, this list of conditions and the following
+ *       disclaimer in the documentation and/or other materials provided
+ *       with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+#ifndef _EVENT_H_
+#define _EVENT_H_
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include "ev.h"
+
+struct event
+  {
+  struct ev_io io;
+  struct ev_timer to;
+  struct ev_signal sig;
+
+  struct event_base *ev_base;
+  int ev_fd;
+  short ev_events;
+  int ev_pri;
+  void (*ev_callback)(int, short, void *arg);
+  void *ev_arg;
+  int ev_res;
+};
+
+#define EV_PERSIST                 0x10
+
+#define EVENT_SIGNAL(ev)           ((int) (ev)->ev_fd)
+#define EVENT_FD(ev)               ((int) (ev)->ev_fd)
+
+#define event_initialized(ev)      1
+
+#define evtimer_add(ev,tv)         event_add (ev, tv)
+#define evtimer_set(ev,cb,data)    event_set (ev, -1, 0, cb, data)
+#define evtimer_del(ev)            event_del (ev)
+#define evtimer_pending(ev,tv)     event_pending (ev, EV_TIMEOUT, tv)
+#define evtimer_initialized(ev)    event_initialized (ev)
+
+#define timeout_add(ev,tv)         evtimer_add (ev, tv)
+#define timeout_set(ev,cb,data)    evtimer_set (ev, cb, data)
+#define timeout_del(ev)            evtimer_del (ev)
+#define timeout_pending(ev,tv)     evtimer_pending (ev, tv)
+#define timeout_initialized(ev)    evtimer_initialized (ev)
+
+#define signal_add(ev,tv)          event_add (ev, tv)
+#define signal_set(ev,sig,cb,data) event_set (ev, sig, EV_SIGNAL | EV_PERSIST, cb, data)
+#define signal_del(ev)             event_del (ev)
+#define signal_pending(ev,tv)      event_pending (ev, EV_SIGNAL, tv)
+#define signal_initialized(ev)     event_initialized (ev)
+
+const char *event_get_version (void);
+const char *event_get_method (void);
+
+void *event_init (void);
+void event_base_free (struct event_base *base);
+
+#define EVLOOP_ONCE      EVLOOP_ONESHOT
+int event_loop (int);
+int event_loopexit (struct timeval *tv);
+int event_dispatch (void);
+
+#define _EVENT_LOG_DEBUG 0
+#define _EVENT_LOG_MSG   1
+#define _EVENT_LOG_WARN  2
+#define _EVENT_LOG_ERR   3
+typedef void (*event_log_cb)(int severity, const char *msg);
+void event_set_log_callback(event_log_cb cb);
+
+void event_set (struct event *ev, int fd, short events, void (*cb)(int, short, void *), void *arg);
+int event_once (int fd, short events, void (*cb)(int, short, void *), void *arg, struct timeval *tv);
+
+int event_add (struct event *ev, struct timeval *tv);
+int event_del (struct event *ev);
+void event_active (struct event *ev, int fd, short events);
+
+int event_pending (struct event *ev, short, struct timeval *tv);
+
+int event_priority_init (int npri);
+int event_priority_set (struct event *ev, int pri);
+
+struct event_base;
+
+int event_base_set (struct event_base *base, struct event *ev);
+int event_base_loop (struct event_base *base, int);
+int event_base_loopexit (struct event_base *base, struct timeval *tv);
+int event_base_dispatch (struct event_base *base);
+int event_base_once (struct event_base *base, int fd, short events, void (*cb)(int, short, void *), void *arg, struct timeval *tv);
+int event_base_priority_init (struct event_base *base, int fd);
+
+#endif