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rpc_struct.d
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rpc_struct.d
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/*
* Copyright (c) 2006-2007 Niels Provos <provos@citi.umich.edu>
* Copyright (c) 2007-2011 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.
*/
/** @file event2/rpc_struct.h
Structures used by rpc.h. Using these structures directly may harm
forward compatibility: be careful!
*/
module deimos.event2.rpc_struct;
import deimos.event2._tailq;
import deimos.event2._d_util;
extern (C):
nothrow:
struct evhttp_request;
/**
* provides information about the completed RPC request.
*/
struct evrpc_status {
enum EVRPC_STATUS_ERR_NONE = 0;
enum EVRPC_STATUS_ERR_TIMEOUT = 1;
enum EVRPC_STATUS_ERR_BADPAYLOAD = 2;
enum EVRPC_STATUS_ERR_UNSTARTED = 3;
enum EVRPC_STATUS_ERR_HOOKABORTED = 4;
int error;
/* for looking at headers or other information */
evhttp_request* http_req;
};
/* the structure below needs to be synchronized with evrpc_req_generic */
struct evbuffer;
struct evrpc_req_generic;
struct evrpc_base;
/* 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 */
ExternC!(void* function(void*)) request_new;
void* request_new_arg;
/* frees the request structure */
ExternC!(void function(void*)) request_free;
/* unmarshals the buffer into the proper request structure */
ExternC!(int function(void*, evbuffer*)) request_unmarshal;
/* creates a new reply structure */
ExternC!(void* function(void*)) reply_new;
void* reply_new_arg;
/* frees the reply structure */
ExternC!(void function(void*)) reply_free;
/* verifies that the reply is valid */
ExternC!(int function(void*)) reply_complete;
/* marshals the reply into a buffer */
ExternC!(void function(evbuffer*, void*)) reply_marshal;
/* the callback invoked for each received rpc */
ExternC!(void function(evrpc_req_generic*, void*)) cb;
void* cb_arg;
/* reference for further configuration */
evrpc_base* base;
};