Mercurial > hg > graal-compiler
annotate src/share/vm/runtime/osThread.hpp @ 2388:006b3750a4d4
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author | jcoomes |
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date | Thu, 24 Mar 2011 23:06:13 -0700 |
parents | 083f13976b51 |
children | f08d439fab8c |
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0 | 1 /* |
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6535709: interrupt of wait()ing thread isn't triggerring InterruptedException - test intwait3
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2 * Copyright (c) 1997, 2011, Oracle and/or its affiliates. All rights reserved. |
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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_RUNTIME_OSTHREAD_HPP |
26 #define SHARE_VM_RUNTIME_OSTHREAD_HPP | |
27 | |
28 #include "runtime/frame.hpp" | |
29 #include "runtime/handles.hpp" | |
30 #include "runtime/javaFrameAnchor.hpp" | |
31 #include "runtime/objectMonitor.hpp" | |
32 #include "utilities/top.hpp" | |
33 | |
0 | 34 // The OSThread class holds OS-specific thread information. It is equivalent |
35 // to the sys_thread_t structure of the classic JVM implementation. | |
36 | |
37 // The thread states represented by the ThreadState values are platform-specific | |
38 // and are likely to be only approximate, because most OSes don't give you access | |
39 // to precise thread state information. | |
40 | |
41 // Note: the ThreadState is legacy code and is not correctly implemented. | |
42 // Uses of ThreadState need to be replaced by the state in the JavaThread. | |
43 | |
44 enum ThreadState { | |
45 ALLOCATED, // Memory has been allocated but not initialized | |
46 INITIALIZED, // The thread has been initialized but yet started | |
47 RUNNABLE, // Has been started and is runnable, but not necessarily running | |
48 MONITOR_WAIT, // Waiting on a contended monitor lock | |
49 CONDVAR_WAIT, // Waiting on a condition variable | |
50 OBJECT_WAIT, // Waiting on an Object.wait() call | |
51 BREAKPOINTED, // Suspended at breakpoint | |
52 SLEEPING, // Thread.sleep() | |
53 ZOMBIE // All done, but not reclaimed yet | |
54 }; | |
55 | |
56 // I'd make OSThread a ValueObj embedded in Thread to avoid an indirection, but | |
57 // the assembler test in java.cpp expects that it can install the OSThread of | |
58 // the main thread into its own Thread at will. | |
59 | |
60 | |
61 class OSThread: public CHeapObj { | |
62 friend class VMStructs; | |
63 private: | |
64 //void* _start_proc; // Thread start routine | |
65 OSThreadStartFunc _start_proc; // Thread start routine | |
66 void* _start_parm; // Thread start routine parameter | |
67 volatile ThreadState _state; // Thread state *hint* | |
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6535709: interrupt of wait()ing thread isn't triggerring InterruptedException - test intwait3
dholmes
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68 volatile jint _interrupted; // Thread.isInterrupted state |
0 | 69 |
70 // Note: _interrupted must be jint, so that Java intrinsics can access it. | |
71 // The value stored there must be either 0 or 1. It must be possible | |
72 // for Java to emulate Thread.currentThread().isInterrupted() by performing | |
73 // the double indirection Thread::current()->_osthread->_interrupted. | |
74 | |
75 // Methods | |
76 public: | |
77 void set_state(ThreadState state) { _state = state; } | |
78 ThreadState get_state() { return _state; } | |
79 | |
80 // Constructor | |
81 OSThread(OSThreadStartFunc start_proc, void* start_parm); | |
82 | |
83 // Destructor | |
84 ~OSThread(); | |
85 | |
86 // Accessors | |
87 OSThreadStartFunc start_proc() const { return _start_proc; } | |
88 void set_start_proc(OSThreadStartFunc start_proc) { _start_proc = start_proc; } | |
89 void* start_parm() const { return _start_parm; } | |
90 void set_start_parm(void* start_parm) { _start_parm = start_parm; } | |
91 | |
2386
083f13976b51
6535709: interrupt of wait()ing thread isn't triggerring InterruptedException - test intwait3
dholmes
parents:
1980
diff
changeset
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92 volatile bool interrupted() const { return _interrupted != 0; } |
0 | 93 void set_interrupted(bool z) { _interrupted = z ? 1 : 0; } |
94 | |
95 // Printing | |
96 void print_on(outputStream* st) const; | |
97 void print() const { print_on(tty); } | |
98 | |
99 // For java intrinsics: | |
100 static ByteSize interrupted_offset() { return byte_offset_of(OSThread, _interrupted); } | |
101 | |
102 // Platform dependent stuff | |
1972 | 103 #ifdef TARGET_OS_FAMILY_linux |
104 # include "osThread_linux.hpp" | |
105 #endif | |
106 #ifdef TARGET_OS_FAMILY_solaris | |
107 # include "osThread_solaris.hpp" | |
108 #endif | |
109 #ifdef TARGET_OS_FAMILY_windows | |
110 # include "osThread_windows.hpp" | |
111 #endif | |
112 | |
0 | 113 }; |
114 | |
115 | |
116 // Utility class for use with condition variables: | |
117 class OSThreadWaitState : public StackObj { | |
118 OSThread* _osthread; | |
119 ThreadState _old_state; | |
120 public: | |
121 OSThreadWaitState(OSThread* osthread, bool is_object_wait) { | |
122 _osthread = osthread; | |
123 _old_state = osthread->get_state(); | |
124 if (is_object_wait) { | |
125 osthread->set_state(OBJECT_WAIT); | |
126 } else { | |
127 osthread->set_state(CONDVAR_WAIT); | |
128 } | |
129 } | |
130 ~OSThreadWaitState() { | |
131 _osthread->set_state(_old_state); | |
132 } | |
133 }; | |
134 | |
135 | |
136 // Utility class for use with contended monitors: | |
137 class OSThreadContendState : public StackObj { | |
138 OSThread* _osthread; | |
139 ThreadState _old_state; | |
140 public: | |
141 OSThreadContendState(OSThread* osthread) { | |
142 _osthread = osthread; | |
143 _old_state = osthread->get_state(); | |
144 osthread->set_state(MONITOR_WAIT); | |
145 } | |
146 ~OSThreadContendState() { | |
147 _osthread->set_state(_old_state); | |
148 } | |
149 }; | |
1972 | 150 |
151 #endif // SHARE_VM_RUNTIME_OSTHREAD_HPP |