1 karl 1.5 //%2006////////////////////////////////////////////////////////////////////////
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2 kumpf 1.1 //
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3 karl 1.2 // Copyright (c) 2000, 2001, 2002 BMC Software; Hewlett-Packard Development
4 // Company, L.P.; IBM Corp.; The Open Group; Tivoli Systems.
5 // Copyright (c) 2003 BMC Software; Hewlett-Packard Development Company, L.P.;
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6 kumpf 1.1 // IBM Corp.; EMC Corporation, The Open Group.
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7 karl 1.2 // Copyright (c) 2004 BMC Software; Hewlett-Packard Development Company, L.P.;
8 // IBM Corp.; EMC Corporation; VERITAS Software Corporation; The Open Group.
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9 karl 1.4 // Copyright (c) 2005 Hewlett-Packard Development Company, L.P.; IBM Corp.;
10 // EMC Corporation; VERITAS Software Corporation; The Open Group.
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11 karl 1.5 // Copyright (c) 2006 Hewlett-Packard Development Company, L.P.; IBM Corp.;
12 // EMC Corporation; Symantec Corporation; The Open Group.
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13 kumpf 1.1 //
14 // Permission is hereby granted, free of charge, to any person obtaining a copy
15 // of this software and associated documentation files (the "Software"), to
16 // deal in the Software without restriction, including without limitation the
17 // rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
18 // sell copies of the Software, and to permit persons to whom the Software is
19 // furnished to do so, subject to the following conditions:
20 //
21 // THE ABOVE COPYRIGHT NOTICE AND THIS PERMISSION NOTICE SHALL BE INCLUDED IN
22 // ALL COPIES OR SUBSTANTIAL PORTIONS OF THE SOFTWARE. THE SOFTWARE IS PROVIDED
23 // "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT
24 // LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
25 // PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
26 // HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
27 // ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
28 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
29 //
30 //==============================================================================
31 //
32 // Author: Carol Ann Krug Graves, Hewlett-Packard Company
33 // (carolann_graves@hp.com)
34 kumpf 1.1 //
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35 david.dillard 1.3 // Modified By: David Dillard, VERITAS Software Corp.
36 // (david.dillard@veritas.com)
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37 kumpf 1.1 //
38 //%/////////////////////////////////////////////////////////////////////////////
39
40
41 #include "AnonymousPipe.h"
42 #include <Pegasus/Common/Signal.h>
43 #include <windows.h>
44 #include <stdio.h>
45
46
47 PEGASUS_NAMESPACE_BEGIN
48
49 AnonymousPipe::AnonymousPipe ()
50 {
51 PEG_METHOD_ENTER (TRC_OS_ABSTRACTION, "AnonymousPipe::AnonymousPipe ()");
52
53 AnonymousPipeHandle thePipe [2];
54
55 SECURITY_ATTRIBUTES saAttr;
56 saAttr.nLength = sizeof (SECURITY_ATTRIBUTES);
57 saAttr.bInheritHandle = TRUE;
58 kumpf 1.1 saAttr.lpSecurityDescriptor = NULL;
59
60 if (!CreatePipe (&thePipe [0], &thePipe [1], &saAttr, 0))
61 {
62 Tracer::trace (TRC_OS_ABSTRACTION, Tracer::LEVEL2,
63 "Failed to create pipe. Error code: %d", GetLastError ());
64 PEG_METHOD_EXIT ();
65
66 MessageLoaderParms mlp ("Common.AnonymousPipe.CREATE_PIPE_FAILED",
67 "Failed to create pipe.");
68 throw Exception (mlp);
69 }
70
71 _readHandle = thePipe [0];
72 _writeHandle = thePipe [1];
73 _readOpen = true;
74 _writeOpen = true;
75
76 PEG_METHOD_EXIT ();
77 }
78
79 kumpf 1.1 AnonymousPipe::AnonymousPipe (
80 const char * readHandle,
81 const char * writeHandle)
82 {
83 PEG_METHOD_ENTER (TRC_OS_ABSTRACTION,
84 "AnonymousPipe::AnonymousPipe (const char *, const char *)");
85
86 _readHandle = 0;
87 _writeHandle = 0;
88 _readOpen = false;
89 _writeOpen = false;
90
91 if (readHandle != NULL)
92 {
93 if (sscanf (readHandle, "%p", &_readHandle) != 1)
94 {
95 Tracer::trace (TRC_OS_ABSTRACTION, Tracer::LEVEL2,
96 "Failed to create pipe: invalid read handle %s", readHandle);
97 PEG_METHOD_EXIT ();
98
99 MessageLoaderParms mlp ("Common.AnonymousPipe.CREATE_PIPE_FAILED",
100 kumpf 1.1 "Failed to create pipe.");
101 throw Exception (mlp);
102 }
103 _readOpen = true;
104 }
105
106 if (writeHandle != NULL)
107 {
108 if (sscanf (writeHandle, "%p", &_writeHandle) != 1)
109 {
110 Tracer::trace (TRC_OS_ABSTRACTION, Tracer::LEVEL2,
111 "Failed to create pipe: invalid write handle %s", writeHandle);
112 PEG_METHOD_EXIT ();
113
114 MessageLoaderParms mlp ("Common.AnonymousPipe.CREATE_PIPE_FAILED",
115 "Failed to create pipe.");
116 throw Exception (mlp);
117 }
118 _writeOpen = true;
119 }
120
121 kumpf 1.1 PEG_METHOD_EXIT ();
122 }
123
124 AnonymousPipe::~AnonymousPipe ()
125 {
126 PEG_METHOD_ENTER (TRC_OS_ABSTRACTION, "AnonymousPipe::~AnonymousPipe");
127
128 if (_readOpen)
129 {
130 closeReadHandle ();
131 }
132
133 if (_writeOpen)
134 {
135 closeWriteHandle ();
136 }
137
138 PEG_METHOD_EXIT ();
139 }
140
141 AnonymousPipe::Status AnonymousPipe::writeBuffer (
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142 david.dillard 1.3 const void * buffer,
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143 kumpf 1.1 Uint32 bytesToWrite)
144 {
145 //
146 // Treat invalid handle as connection closed
147 //
148 if (!_writeOpen)
149 {
150 Tracer::trace (TRC_OS_ABSTRACTION, Tracer::LEVEL2,
151 "Attempted to write to pipe whose write handle is not open");
152 return STATUS_CLOSED;
153 }
154
155 //
156 // Ignore SIGPIPE signals
157 //
158 SignalHandler::ignore (PEGASUS_SIGPIPE);
159
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160 david.dillard 1.3 const char * writeBuffer = reinterpret_cast<const char *>(buffer);
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161 kumpf 1.1 DWORD expectedBytes = bytesToWrite;
162 do
163 {
164 BOOL returnValue;
165 DWORD bytesWritten = 0;
166 returnValue = WriteFile (_writeHandle, writeBuffer, expectedBytes,
167 &bytesWritten, NULL);
168
169 if (!returnValue)
170 {
171 Tracer::trace (TRC_OS_ABSTRACTION, Tracer::LEVEL2,
172 "Failed to write buffer to pipe. Error code: %d",
173 GetLastError ());
174 return STATUS_ERROR;
175 }
176
177 if (bytesWritten < 0)
178 {
179 Tracer::trace (TRC_OS_ABSTRACTION, Tracer::LEVEL2,
180 "Failed to write buffer to pipe. Error code: %d",
181 GetLastError ());
182 kumpf 1.1
183 if ((GetLastError () == ERROR_PIPE_NOT_CONNECTED) ||
184 (GetLastError () == ERROR_BROKEN_PIPE))
185 {
186 return STATUS_CLOSED;
187 }
188 else
189 {
190 return STATUS_ERROR;
191 }
192 }
193
194 expectedBytes -= bytesWritten;
195 writeBuffer += bytesWritten;
196 } while (expectedBytes > 0);
197
198 return STATUS_SUCCESS;
199 }
200
201 AnonymousPipe::Status AnonymousPipe::readBuffer (
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202 david.dillard 1.3 void * buffer,
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203 kumpf 1.1 Uint32 bytesToRead)
204 {
205 //
206 // Treat invalid handle as connection closed
207 //
208 if (!_readOpen)
209 {
210 Tracer::trace (TRC_OS_ABSTRACTION, Tracer::LEVEL2,
211 "Attempted to read from pipe whose read handle is not open");
212 return STATUS_CLOSED;
213 }
214
215 DWORD expectedBytes = bytesToRead;
216
217 do
218 {
219 BOOL returnValue;
220 DWORD bytesRead;
221 returnValue = ReadFile (_readHandle, buffer, bytesToRead, &bytesRead,
222 NULL);
223
224 kumpf 1.1 if (!returnValue)
225 {
226 Tracer::trace (TRC_OS_ABSTRACTION, Tracer::LEVEL2,
227 "Failed to read buffer from pipe. Error code: %d",
228 GetLastError ());
229 if ((GetLastError () == ERROR_PIPE_NOT_CONNECTED) ||
230 (GetLastError () == ERROR_BROKEN_PIPE))
231 {
232 return STATUS_CLOSED;
233 }
234
235 return STATUS_ERROR;
236 }
237
238 if (bytesRead == 0)
239 {
240 //
241 // Connection closed
242 //
243 Tracer::trace (TRC_OS_ABSTRACTION, Tracer::LEVEL2,
244 "Failed to read buffer from pipe: connection closed");
245 kumpf 1.1 return STATUS_CLOSED;
246 }
247
248 if (bytesRead < 0)
249 {
250 Tracer::trace (TRC_OS_ABSTRACTION, Tracer::LEVEL2,
251 "Failed to read buffer from pipe. Error code: %d",
252 GetLastError ());
253
254 //
255 // Error reading from pipe
256 //
257 return STATUS_ERROR;
258 }
259
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260 david.dillard 1.3 buffer = reinterpret_cast<char *>(buffer) + bytesRead;
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261 kumpf 1.1 bytesToRead -= bytesRead;
262 } while (bytesToRead > 0);
263
264 return STATUS_SUCCESS;
265 }
266
267 void AnonymousPipe::exportReadHandle (char * buffer) const
268 {
269 PEG_METHOD_ENTER (TRC_OS_ABSTRACTION, "AnonymousPipe::exportReadHandle");
270
271 sprintf (buffer, "%p", _readHandle);
272
273 PEG_METHOD_EXIT ();
274 }
275
276 void AnonymousPipe::exportWriteHandle (char * buffer) const
277 {
278 PEG_METHOD_ENTER (TRC_OS_ABSTRACTION, "AnonymousPipe::exportWriteHandle");
279
280 sprintf (buffer, "%p", _writeHandle);
281
282 kumpf 1.1 PEG_METHOD_EXIT ();
283 }
284
285 void AnonymousPipe::closeReadHandle ()
286 {
287 PEG_METHOD_ENTER (TRC_OS_ABSTRACTION, "AnonymousPipe::closeReadHandle");
288
289 if (_readOpen)
290 {
291 if (!CloseHandle (_readHandle))
292 {
293 Tracer::trace (TRC_OS_ABSTRACTION, Tracer::LEVEL2,
294 "Failed to close read handle. Error code: %d",
295 GetLastError ());
296 }
297 else
298 {
299 _readOpen = false;
300 }
301 }
302 else
303 kumpf 1.1 {
304 Tracer::trace (TRC_OS_ABSTRACTION, Tracer::LEVEL2,
305 "Attempted to close read handle that was not open");
306 }
307
308 PEG_METHOD_EXIT ();
309 }
310
311 void AnonymousPipe::closeWriteHandle ()
312 {
313 PEG_METHOD_ENTER (TRC_OS_ABSTRACTION, "AnonymousPipe::closeWriteHandle");
314
315 if (_writeOpen)
316 {
317 if (!CloseHandle (_writeHandle))
318 {
319 Tracer::trace (TRC_OS_ABSTRACTION, Tracer::LEVEL2,
320 "Failed to close write handle. Error code: %d",
321 GetLastError ());
322 }
323 else
324 kumpf 1.1 {
325 _writeOpen = false;
326 }
327 }
328 else
329 {
330 Tracer::trace (TRC_OS_ABSTRACTION, Tracer::LEVEL2,
331 "Attempted to close write handle that was not open");
332 }
333
334 PEG_METHOD_EXIT ();
335 }
336
337 PEGASUS_NAMESPACE_END
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AnonymousPipeWindows.cpp
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