Squashed 'third_party/libevent/' content from commit d8ceae8
Change-Id: I84e1b23561eb225b9f288717b028e6bc9e5a27e1
git-subtree-dir: third_party/libevent
git-subtree-split: d8ceae81b83f3d0a56e2f41d4c429b2702a8e302
diff --git a/include/event2/rpc_struct.h b/include/event2/rpc_struct.h
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+++ b/include/event2/rpc_struct.h
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+/*
+ * Copyright (c) 2006-2007 Niels Provos <provos@citi.umich.edu>
+ * Copyright (c) 2007-2012 Niels Provos and Nick Mathewson
+ *
+ * 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 _EVENT2_RPC_STRUCT_H_
+#define _EVENT2_RPC_STRUCT_H_
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/** @file event2/rpc_struct.h
+
+ Structures used by rpc.h. Using these structures directly may harm
+ forward compatibility: be careful!
+
+ */
+
+/**
+ * provides information about the completed RPC request.
+ */
+struct evrpc_status {
+#define EVRPC_STATUS_ERR_NONE 0
+#define EVRPC_STATUS_ERR_TIMEOUT 1
+#define EVRPC_STATUS_ERR_BADPAYLOAD 2
+#define EVRPC_STATUS_ERR_UNSTARTED 3
+#define EVRPC_STATUS_ERR_HOOKABORTED 4
+ int error;
+
+ /* for looking at headers or other information */
+ struct evhttp_request *http_req;
+};
+
+/* the structure below needs to be synchronized with evrpc_req_generic */
+
+/* Encapsulates a request */
+struct evrpc {
+ TAILQ_ENTRY(evrpc) next;
+
+ /* the URI at which the request handler lives */
+ const char* uri;
+
+ /* creates a new request structure */
+ void *(*request_new)(void *);
+ void *request_new_arg;
+
+ /* frees the request structure */
+ void (*request_free)(void *);
+
+ /* unmarshals the buffer into the proper request structure */
+ int (*request_unmarshal)(void *, struct evbuffer *);
+
+ /* creates a new reply structure */
+ void *(*reply_new)(void *);
+ void *reply_new_arg;
+
+ /* frees the reply structure */
+ void (*reply_free)(void *);
+
+ /* verifies that the reply is valid */
+ int (*reply_complete)(void *);
+
+ /* marshals the reply into a buffer */
+ void (*reply_marshal)(struct evbuffer*, void *);
+
+ /* the callback invoked for each received rpc */
+ void (*cb)(struct evrpc_req_generic *, void *);
+ void *cb_arg;
+
+ /* reference for further configuration */
+ struct evrpc_base *base;
+};
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _EVENT2_RPC_STRUCT_H_ */