2 * RPCSS named pipe client implementation
4 * Copyright (C) 2002 Greg Turner
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.
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.
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
26 #include "wine/rpcss_shared.h"
27 #include "wine/debug.h"
29 #include "rpc_binding.h"
31 WINE_DEFAULT_DEBUG_CHANNEL(ole);
33 HANDLE RPCRT4_RpcssNPConnect(void)
36 DWORD dwmode, wait_result;
37 HANDLE master_mutex = RPCRT4_GetMasterMutex();
43 wait_result = WaitForSingleObject(master_mutex, MASTER_MUTEX_TIMEOUT);
44 switch (wait_result) {
51 ERR("This should never happen: couldn't enter mutex.\n");
55 /* try to open the client side of the named pipe. */
56 the_pipe = CreateFileA(
57 NAME_RPCSS_NAMED_PIPE, /* pipe name */
58 GENERIC_READ | GENERIC_WRITE, /* r/w access */
60 NULL, /* no security attributes */
61 OPEN_EXISTING, /* open an existing pipe */
62 0, /* default attributes */
63 NULL /* no template file */
66 if (the_pipe != INVALID_HANDLE_VALUE)
69 if (GetLastError() != ERROR_PIPE_BUSY) {
70 WARN("Unable to open named pipe %s (assuming unavailable).\n",
71 debugstr_a(NAME_RPCSS_NAMED_PIPE));
75 WARN("Named pipe busy (will wait)\n");
77 if (!ReleaseMutex(master_mutex))
78 ERR("Failed to release master mutex. Expect deadlock.\n");
80 /* wait for the named pipe. We are only willing to wait for 5 seconds.
81 It should be available /very/ soon. */
82 if (! WaitNamedPipeA(NAME_RPCSS_NAMED_PIPE, MASTER_MUTEX_WAITNAMEDPIPE_TIMEOUT))
84 ERR("Named pipe unavailable after waiting. Something is probably wrong.\n");
90 if (the_pipe != INVALID_HANDLE_VALUE) {
91 dwmode = PIPE_READMODE_MESSAGE;
92 /* SetNamedPipeHandleState not implemented ATM, but still seems to work somehow. */
93 if (! SetNamedPipeHandleState(the_pipe, &dwmode, NULL, NULL))
94 WARN("Failed to set pipe handle state\n");
97 if (!ReleaseMutex(master_mutex))
98 ERR("Uh oh, failed to leave the RPC Master Mutex!\n");
103 BOOL RPCRT4_SendReceiveNPMsg(HANDLE np, PRPCSS_NP_MESSAGE msg, char *vardata, PRPCSS_NP_REPLY reply)
106 UINT32 payload_offset;
107 RPCSS_NP_MESSAGE vardata_payload_msg;
109 TRACE("(np == %p, msg == %p, vardata == %p, reply == %p)\n",
110 np, msg, vardata, reply);
112 if (! WriteFile(np, msg, sizeof(RPCSS_NP_MESSAGE), &count, NULL)) {
113 ERR("write failed.\n");
117 if (count != sizeof(RPCSS_NP_MESSAGE)) {
118 ERR("write count mismatch.\n");
122 /* process the vardata payload if necessary */
123 vardata_payload_msg.message_type = RPCSS_NP_MESSAGE_TYPEID_VARDATAPAYLOADMSG;
124 vardata_payload_msg.vardata_payload_size = 0; /* meaningless */
125 for ( payload_offset = 0; payload_offset < msg->vardata_payload_size;
126 payload_offset += VARDATA_PAYLOAD_BYTES ) {
127 TRACE("sending vardata payload. vd=%p, po=%d, ps=%d\n", vardata,
128 payload_offset, msg->vardata_payload_size);
129 ZeroMemory(vardata_payload_msg.message.vardatapayloadmsg.payload, VARDATA_PAYLOAD_BYTES);
130 CopyMemory(vardata_payload_msg.message.vardatapayloadmsg.payload,
132 min( VARDATA_PAYLOAD_BYTES, msg->vardata_payload_size - payload_offset ));
133 vardata += VARDATA_PAYLOAD_BYTES;
134 if (! WriteFile(np, &vardata_payload_msg, sizeof(RPCSS_NP_MESSAGE), &count, NULL)) {
135 ERR("vardata write failed at %u bytes.\n", payload_offset);
140 if (! ReadFile(np, reply, sizeof(RPCSS_NP_REPLY), &count, NULL)) {
141 ERR("read failed.\n");
145 if (count != sizeof(RPCSS_NP_REPLY)) {
146 ERR("read count mismatch. got %d.\n", count);
150 /* message execution was successful */