Mercurial > hg > truffle
annotate agent/src/os/win32/procList.cpp @ 1603:d93949c5bdcc
6730276: JDI_REGRESSION tests fail with "Error: count must be non-zero" error on x86
Summary: Modify assembler code to check for 0 count for all copy routines.
Reviewed-by: never, ysr, jcoomes
author | kvn |
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date | Thu, 10 Jun 2010 13:04:20 -0700 |
parents | c18cbe5936b8 |
children |
rev | line source |
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0 | 1 /* |
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2 * Copyright (c) 2000, 2001, Oracle and/or its affiliates. All rights reserved. |
0 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
4 * | |
5 * This code is free software; you can redistribute it and/or modify it | |
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
12 * version 2 for more details (a copy is included in the LICENSE file that | |
13 * accompanied this code). | |
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15 * You should have received a copy of the GNU General Public License version | |
16 * 2 along with this work; if not, write to the Free Software Foundation, | |
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
0 | 22 * |
23 */ | |
24 | |
25 #include "procList.hpp" | |
26 #include "nt4internals.hpp" | |
27 #include "isNT4.hpp" | |
28 #include "toolHelp.hpp" | |
29 #include <assert.h> | |
30 | |
31 using namespace std; | |
32 using namespace NT4; | |
33 | |
34 typedef void ProcListImplFunc(ProcEntryList& processes); | |
35 | |
36 void procListImplNT4(ProcEntryList& processes); | |
37 void procListImplToolHelp(ProcEntryList& processes); | |
38 | |
39 ProcEntry::ProcEntry(ULONG pid, USHORT nameLength, WCHAR* name) { | |
40 this->pid = pid; | |
41 this->nameLength = nameLength; | |
42 this->name = new WCHAR[nameLength]; | |
43 memcpy(this->name, name, nameLength * sizeof(WCHAR)); | |
44 } | |
45 | |
46 ProcEntry::ProcEntry(ULONG pid, USHORT nameLength, char* name) { | |
47 this->pid = pid; | |
48 this->nameLength = nameLength; | |
49 this->name = new WCHAR[nameLength]; | |
50 int j = 0; | |
51 for (int i = 0; i < nameLength; i++) { | |
52 // FIXME: what is the proper promotion from ASCII to UNICODE? | |
53 this->name[i] = name[i] & 0xFF; | |
54 } | |
55 } | |
56 | |
57 ProcEntry::ProcEntry(const ProcEntry& arg) { | |
58 name = NULL; | |
59 copyFrom(arg); | |
60 } | |
61 | |
62 ProcEntry& | |
63 ProcEntry::operator=(const ProcEntry& arg) { | |
64 copyFrom(arg); | |
65 return *this; | |
66 } | |
67 | |
68 ProcEntry::~ProcEntry() { | |
69 delete[] name; | |
70 } | |
71 | |
72 void | |
73 ProcEntry::copyFrom(const ProcEntry& arg) { | |
74 if (name != NULL) { | |
75 delete[] name; | |
76 } | |
77 pid = arg.pid; | |
78 nameLength = arg.nameLength; | |
79 name = new WCHAR[nameLength]; | |
80 memcpy(name, arg.name, nameLength * sizeof(WCHAR)); | |
81 } | |
82 | |
83 ULONG | |
84 ProcEntry::getPid() { | |
85 return pid; | |
86 } | |
87 | |
88 USHORT | |
89 ProcEntry::getNameLength() { | |
90 return nameLength; | |
91 } | |
92 | |
93 WCHAR* | |
94 ProcEntry::getName() { | |
95 return name; | |
96 } | |
97 | |
98 void | |
99 procList(ProcEntryList& processes) { | |
100 static ProcListImplFunc* impl = NULL; | |
101 | |
102 if (impl == NULL) { | |
103 // See which operating system we're on | |
104 impl = (isNT4() ? &procListImplNT4 : &procListImplToolHelp); | |
105 } | |
106 | |
107 assert(impl != NULL); | |
108 | |
109 (*impl)(processes); | |
110 } | |
111 | |
112 void | |
113 procListImplNT4(ProcEntryList& processes) { | |
114 using namespace NT4; | |
115 | |
116 static ZwQuerySystemInformationFunc* query = NULL; | |
117 | |
118 if (query == NULL) { | |
119 HMODULE ntDLL = loadNTDLL(); | |
120 query = | |
121 (ZwQuerySystemInformationFunc*) GetProcAddress(ntDLL, | |
122 "ZwQuerySystemInformation"); | |
123 assert(query != NULL); | |
124 } | |
125 | |
126 ULONG n = 0x100; | |
127 PSYSTEM_PROCESSES sp = new SYSTEM_PROCESSES[n]; | |
128 while ((*query)(SystemProcessesAndThreadsInformation, | |
129 sp, n * sizeof(SYSTEM_PROCESSES), 0) == STATUS_INFO_LENGTH_MISMATCH) { | |
130 delete[] sp; | |
131 n *= 2; | |
132 sp = new SYSTEM_PROCESSES[n]; | |
133 } | |
134 | |
135 bool done = false; | |
136 for (PSYSTEM_PROCESSES p = sp; !done; | |
137 p = PSYSTEM_PROCESSES(PCHAR(p) + p->NextEntryDelta)) { | |
138 processes.push_back(ProcEntry(p->ProcessId, | |
139 p->ProcessName.Length / 2, | |
140 p->ProcessName.Buffer)); | |
141 done = p->NextEntryDelta == 0; | |
142 } | |
143 } | |
144 | |
145 void | |
146 procListImplToolHelp(ProcEntryList& processes) { | |
147 using namespace ToolHelp; | |
148 | |
149 static CreateToolhelp32SnapshotFunc* snapshotFunc = NULL; | |
150 static Process32FirstFunc* firstFunc = NULL; | |
151 static Process32NextFunc* nextFunc = NULL; | |
152 | |
153 if (snapshotFunc == NULL) { | |
154 HMODULE dll = loadDLL(); | |
155 | |
156 snapshotFunc = | |
157 (CreateToolhelp32SnapshotFunc*) GetProcAddress(dll, | |
158 "CreateToolhelp32Snapshot"); | |
159 | |
160 firstFunc = (Process32FirstFunc*) GetProcAddress(dll, | |
161 "Process32First"); | |
162 | |
163 nextFunc = (Process32NextFunc*) GetProcAddress(dll, | |
164 "Process32Next"); | |
165 | |
166 assert(snapshotFunc != NULL); | |
167 assert(firstFunc != NULL); | |
168 assert(nextFunc != NULL); | |
169 } | |
170 | |
171 HANDLE snapshot = (*snapshotFunc)(TH32CS_SNAPPROCESS, 0 /* ignored */); | |
172 if (snapshot == (HANDLE) -1) { | |
173 // Error occurred during snapshot | |
174 return; | |
175 } | |
176 | |
177 // Iterate | |
178 PROCESSENTRY32 proc; | |
179 if ((*firstFunc)(snapshot, &proc)) { | |
180 do { | |
181 // FIXME: could make this uniform to the NT version by cutting | |
182 // off the path name just before the executable name | |
183 processes.push_back(ProcEntry(proc.th32ProcessID, | |
184 strlen(proc.szExeFile), | |
185 proc.szExeFile)); | |
186 } while ((*nextFunc)(snapshot, &proc)); | |
187 } | |
188 | |
189 CloseHandle(snapshot); | |
190 } |