1 /*
2 * Asynchronous Call Support Functions
3 *
4 * Copyright 2007 Robert Shearman (for CodeWeavers)
5 *
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
10 *
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
15 *
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with this library; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
19 *
20 */
21
22 #include <stdarg.h>
23
24 #include "rpc.h"
25 #include "rpcndr.h"
26 #include "rpcasync.h"
27
28 #include "wine/debug.h"
29
30 #include "rpc_binding.h"
31 #include "rpc_message.h"
32 #include "ndr_stubless.h"
33
34 WINE_DEFAULT_DEBUG_CHANNEL(rpc);
35
36 #define RPC_ASYNC_SIGNATURE 0x43595341
37
38 static inline BOOL valid_async_handle(PRPC_ASYNC_STATE pAsync)
39 {
40 return pAsync->Signature == RPC_ASYNC_SIGNATURE;
41 }
42
43 /***********************************************************************
44 * RpcAsyncInitializeHandle [RPCRT4.@]
45 *
46 * Initialises an asynchronous state so it can be used in other asynchronous
47 * functions and for use in asynchronous calls.
48 *
49 * PARAMS
50 * pAsync [I] Asynchronous state to initialise.
51 * Size [I] Size of the memory pointed to by pAsync.
52 *
53 * RETURNS
54 * Success: RPC_S_OK.
55 * Failure: Any error code.
56 */
57 RPC_STATUS WINAPI RpcAsyncInitializeHandle(PRPC_ASYNC_STATE pAsync, unsigned int Size)
58 {
59 TRACE("(%p, %d)\n", pAsync, Size);
60
61 if (Size != sizeof(*pAsync))
62 {
63 ERR("invalid Size %d\n", Size);
64 return ERROR_INVALID_PARAMETER;
65 }
66
67 pAsync->Size = sizeof(*pAsync);
68 pAsync->Signature = RPC_ASYNC_SIGNATURE;
69 pAsync->Lock = 0;
70 pAsync->Flags = 0;
71 pAsync->StubInfo = NULL;
72 pAsync->RuntimeInfo = NULL;
73 memset(pAsync->Reserved, 0, sizeof(*pAsync) - FIELD_OFFSET(RPC_ASYNC_STATE, Reserved));
74
75 return RPC_S_OK;
76 }
77
78 /***********************************************************************
79 * RpcAsyncGetCallStatus [RPCRT4.@]
80 *
81 * Retrieves the current status of the asynchronous call taking place.
82 *
83 * PARAMS
84 * pAsync [I] Asynchronous state to initialise.
85 *
86 * RETURNS
87 * RPC_S_OK - The call was successfully completed.
88 * RPC_S_INVALID_ASYNC_HANDLE - The asynchronous structure is not valid.
89 * RPC_S_ASYNC_CALL_PENDING - The call is still in progress and has not been completed.
90 * Any other error code - The call failed.
91 */
92 RPC_STATUS WINAPI RpcAsyncGetCallStatus(PRPC_ASYNC_STATE pAsync)
93 {
94 FIXME("(%p): stub\n", pAsync);
95 return RPC_S_INVALID_ASYNC_HANDLE;
96 }
97
98 /***********************************************************************
99 * RpcAsyncCompleteCall [RPCRT4.@]
100 *
101 * Completes a client or server asynchronous call.
102 *
103 * PARAMS
104 * pAsync [I] Asynchronous state to initialise.
105 * Reply [I] The return value of the asynchronous function.
106 *
107 * RETURNS
108 * Success: RPC_S_OK.
109 * Failure: Any error code.
110 */
111 RPC_STATUS WINAPI RpcAsyncCompleteCall(PRPC_ASYNC_STATE pAsync, void *Reply)
112 {
113 TRACE("(%p, %p)\n", pAsync, Reply);
114
115 if (!valid_async_handle(pAsync))
116 return RPC_S_INVALID_ASYNC_HANDLE;
117
118 /* FIXME: check completed */
119
120 return NdrpCompleteAsyncClientCall(pAsync, Reply);
121 }
122
123 /***********************************************************************
124 * RpcAsyncAbortCall [RPCRT4.@]
125 *
126 * Aborts the asynchronous server call taking place.
127 *
128 * PARAMS
129 * pAsync [I] Asynchronous server state to abort.
130 * ExceptionCode [I] Exception code to return to the client in a fault packet.
131 *
132 * RETURNS
133 * Success: RPC_S_OK.
134 * Failure: Any error code.
135 */
136 RPC_STATUS WINAPI RpcAsyncAbortCall(PRPC_ASYNC_STATE pAsync, ULONG ExceptionCode)
137 {
138 FIXME("(%p, %d/0x%x): stub\n", pAsync, ExceptionCode, ExceptionCode);
139 return RPC_S_INVALID_ASYNC_HANDLE;
140 }
141
142 /***********************************************************************
143 * RpcAsyncCancelCall [RPCRT4.@]
144 *
145 * Cancels the asynchronous client call taking place.
146 *
147 * PARAMS
148 * pAsync [I] Asynchronous client state to abort.
149 * fAbortCall [I] If TRUE, then send a cancel to the server, otherwise
150 * just wait for the call to complete.
151 *
152 * RETURNS
153 * Success: RPC_S_OK.
154 * Failure: Any error code.
155 */
156 RPC_STATUS WINAPI RpcAsyncCancelCall(PRPC_ASYNC_STATE pAsync, BOOL fAbortCall)
157 {
158 FIXME("(%p, %s): stub\n", pAsync, fAbortCall ? "TRUE" : "FALSE");
159 return RPC_S_INVALID_ASYNC_HANDLE;
160 }
161
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