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