Mercurial > hg > truffle
annotate src/share/vm/services/attachListener.hpp @ 5763:a3d71693e0ce
removed bytecode disassembly from CodeCacheRuntime into separate BytecodeDisassembler class
removed VM call for doing bytecode disassembly
added support for explicitly excluding classes from JaCoCo (put '// JaCoCo Exclude' somewhere in the source file)
added node intrinsics to MaterializeNode
added snippets for the UnsignedMath classes
each file opened by CFGPrinter now includes a unique id in its name to avoid a race of multiple threads writing to the same file
the IdealGraphPrinter uses the new BytecodeDisassembler mechanism
teh UnsignedMath class is exclude from JaCoCo processing as it is used in snippets
author | Doug Simon <doug.simon@oracle.com> |
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date | Wed, 04 Jul 2012 21:57:49 +0200 |
parents | 1d1603768966 |
children | d2a62e0f25eb |
rev | line source |
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0 | 1 /* |
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2 * Copyright (c) 2005, 2011, 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 | |
6 * under the terms of the GNU General Public License version 2 only, as | |
7 * published by the Free Software Foundation. | |
8 * | |
9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
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). | |
14 * | |
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. | |
18 * | |
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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 | |
1972 | 25 #ifndef SHARE_VM_SERVICES_ATTACHLISTENER_HPP |
26 #define SHARE_VM_SERVICES_ATTACHLISTENER_HPP | |
27 | |
28 #include "memory/allocation.hpp" | |
29 #include "utilities/debug.hpp" | |
30 #include "utilities/ostream.hpp" | |
31 | |
0 | 32 // The AttachListener thread services a queue of operations that are enqueued |
33 // by client tools. Each operation is identified by a name and has up to 3 | |
34 // arguments. The operation name is mapped to a function which performs the | |
35 // operation. The function is called with an outputStream which is can use to | |
36 // write any result data (for examples the properties command serializes | |
37 // properties names and values to the output stream). When the function | |
38 // complets the result value and any result data is returned to the client | |
39 // tool. | |
40 | |
41 #ifndef SERVICES_KERNEL | |
42 | |
43 class AttachOperation; | |
44 | |
45 typedef jint (*AttachOperationFunction)(AttachOperation* op, outputStream* out); | |
46 | |
47 struct AttachOperationFunctionInfo { | |
48 const char* name; | |
49 AttachOperationFunction func; | |
50 }; | |
51 #endif // SERVICES_KERNEL | |
52 | |
53 class AttachListener: AllStatic { | |
54 public: | |
55 static void init() KERNEL_RETURN; | |
56 static void abort() KERNEL_RETURN; | |
57 | |
58 // invoke to perform clean-up tasks when all clients detach | |
59 static void detachall() KERNEL_RETURN; | |
60 | |
61 // indicates if the Attach Listener needs to be created at startup | |
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62 static bool init_at_startup() KERNEL_RETURN_(false); |
0 | 63 |
64 // indicates if we have a trigger to start the Attach Listener | |
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65 static bool is_init_trigger() KERNEL_RETURN_(false); |
0 | 66 |
67 #ifdef SERVICES_KERNEL | |
68 static bool is_attach_supported() { return false; } | |
69 #else // SERVICES_KERNEL | |
70 private: | |
71 static volatile bool _initialized; | |
72 | |
73 public: | |
74 static bool is_initialized() { return _initialized; } | |
75 static void set_initialized() { _initialized = true; } | |
76 | |
77 // indicates if this VM supports attach-on-demand | |
78 static bool is_attach_supported() { return !DisableAttachMechanism; } | |
79 | |
80 // platform specific initialization | |
81 static int pd_init(); | |
82 | |
83 // platform specific operation | |
84 static AttachOperationFunctionInfo* pd_find_operation(const char* name); | |
85 | |
86 // platform specific flag change | |
87 static jint pd_set_flag(AttachOperation* op, outputStream* out); | |
88 | |
89 // platform specific detachall | |
90 static void pd_detachall(); | |
91 | |
92 // platform specific data dump | |
93 static void pd_data_dump(); | |
94 | |
95 // dequeue the next operation | |
96 static AttachOperation* dequeue(); | |
97 #endif // SERVICES_KERNEL | |
98 }; | |
99 | |
100 #ifndef SERVICES_KERNEL | |
101 class AttachOperation: public CHeapObj { | |
102 public: | |
103 enum { | |
104 name_length_max = 16, // maximum length of name | |
105 arg_length_max = 1024, // maximum length of argument | |
106 arg_count_max = 3 // maximum number of arguments | |
107 }; | |
108 | |
109 // name of special operation that can be enqueued when all | |
110 // clients detach | |
111 static char* detachall_operation_name() { return (char*)"detachall"; } | |
112 | |
113 private: | |
114 char _name[name_length_max+1]; | |
115 char _arg[arg_count_max][arg_length_max+1]; | |
116 | |
117 public: | |
118 const char* name() const { return _name; } | |
119 | |
120 // set the operation name | |
121 void set_name(char* name) { | |
122 assert(strlen(name) <= name_length_max, "exceeds maximum name length"); | |
123 strcpy(_name, name); | |
124 } | |
125 | |
126 // get an argument value | |
127 const char* arg(int i) const { | |
128 assert(i>=0 && i<arg_count_max, "invalid argument index"); | |
129 return _arg[i]; | |
130 } | |
131 | |
132 // set an argument value | |
133 void set_arg(int i, char* arg) { | |
134 assert(i>=0 && i<arg_count_max, "invalid argument index"); | |
135 if (arg == NULL) { | |
136 _arg[i][0] = '\0'; | |
137 } else { | |
138 assert(strlen(arg) <= arg_length_max, "exceeds maximum argument length"); | |
139 strcpy(_arg[i], arg); | |
140 } | |
141 } | |
142 | |
143 // create an operation of a given name | |
144 AttachOperation(char* name) { | |
145 set_name(name); | |
146 for (int i=0; i<arg_count_max; i++) { | |
147 set_arg(i, NULL); | |
148 } | |
149 } | |
150 | |
151 // complete operation by sending result code and any result data to the client | |
152 virtual void complete(jint result, bufferedStream* result_stream) = 0; | |
153 }; | |
154 #endif // SERVICES_KERNEL | |
1972 | 155 |
156 #endif // SHARE_VM_SERVICES_ATTACHLISTENER_HPP |