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diff --git a/libevent/evrpc-internal.h b/libevent/evrpc-internal.h
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+++ b/libevent/evrpc-internal.h
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+/*
+ * Copyright (c) 2006 Niels Provos <provos@citi.umich.edu>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. 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.
+ * 3. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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 _EVRPC_INTERNAL_H_
+#define _EVRPC_INTERNAL_H_
+
+#include "http-internal.h"
+
+struct evrpc;
+
+#define EVRPC_URI_PREFIX "/.rpc."
+
+struct evrpc_hook {
+	TAILQ_ENTRY(evrpc_hook) (next);
+
+	/* returns -1; if the rpc should be aborted, is allowed to rewrite */
+	int (*process)(struct evhttp_request *, struct evbuffer *, void *);
+	void *process_arg;
+};
+
+TAILQ_HEAD(evrpc_hook_list, evrpc_hook);
+
+/*
+ * this is shared between the base and the pool, so that we can reuse
+ * the hook adding functions; we alias both evrpc_pool and evrpc_base
+ * to this common structure.
+ */
+struct _evrpc_hooks {
+	/* hooks for processing outbound and inbound rpcs */
+	struct evrpc_hook_list in_hooks;
+	struct evrpc_hook_list out_hooks;
+};
+
+#define input_hooks common.in_hooks
+#define output_hooks common.out_hooks
+
+struct evrpc_base {
+	struct _evrpc_hooks common;
+
+	/* the HTTP server under which we register our RPC calls */
+	struct evhttp* http_server;
+
+	/* a list of all RPCs registered with us */
+	TAILQ_HEAD(evrpc_list, evrpc) registered_rpcs;
+};
+
+struct evrpc_req_generic;
+void evrpc_reqstate_free(struct evrpc_req_generic* rpc_state);
+
+/* A pool for holding evhttp_connection objects */
+struct evrpc_pool {
+	struct _evrpc_hooks common;
+
+	struct event_base *base;
+
+	struct evconq connections;
+
+	int timeout;
+
+	TAILQ_HEAD(evrpc_requestq, evrpc_request_wrapper) requests;
+};
+
+
+#endif /* _EVRPC_INTERNAL_H_ */