1 /*
2 * Copyright (c) 1997, 2010, Oracle and/or its affiliates. All rights reserved.
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 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
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*
68 jint _interrupted; // Thread.isInterrupted state
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
92 bool interrupted() const { return _interrupted != 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
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
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1 /*
2 * Copyright (c) 1997, 2011, Oracle and/or its affiliates. All rights reserved.
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 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
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*
68 volatile jint _interrupted; // Thread.isInterrupted state
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
92 volatile bool interrupted() const { return _interrupted != 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
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
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