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comparison src/os/solaris/vm/osThread_solaris.hpp @ 10405:f2110083203d

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8005849: JEP 167: Event-Based JVM Tracing Reviewed-by: acorn, coleenp, sla Contributed-by: Karen Kinnear <karen.kinnear@oracle.com>, Bengt Rutisson <bengt.rutisson@oracle.com>, Calvin Cheung <calvin.cheung@oracle.com>, Erik Gahlin <erik.gahlin@oracle.com>, Erik Helin <erik.helin@oracle.com>, Jesper Wilhelmsson <jesper.wilhelmsson@oracle.com>, Keith McGuigan <keith.mcguigan@oracle.com>, Mattias Tobiasson <mattias.tobiasson@oracle.com>, Markus Gronlund <markus.gronlund@oracle.com>, Mikael Auno <mikael.auno@oracle.com>, Nils Eliasson <nils.eliasson@oracle.com>, Nils Loodin <nils.loodin@oracle.com>, Rickard Backman <rickard.backman@oracle.com>, Staffan Larsen <staffan.larsen@oracle.com>, Stefan Karlsson <stefan.karlsson@oracle.com>, Yekaterina Kantserova <yekaterina.kantserova@oracle.com>
author sla
date Mon, 10 Jun 2013 11:30:51 +0200
parents 960a442eae91
children
comparison
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10404:d0add7016434 10405:f2110083203d
1 /* 1 /*
2 * Copyright (c) 1997, 2012, Oracle and/or its affiliates. All rights reserved. 2 * Copyright (c) 1997, 2013, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 * 4 *
5 * This code is free software; you can redistribute it and/or modify it 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 6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. 7 * published by the Free Software Foundation.
70 // the thread context (get_thread_pc), to set the thread context 70 // the thread context (get_thread_pc), to set the thread context
71 // (set_thread_pc), and to implement java.lang.Thread.interrupt. 71 // (set_thread_pc), and to implement java.lang.Thread.interrupt.
72 // *************************************************************** 72 // ***************************************************************
73 73
74 public: 74 public:
75 75 os::SuspendResume sr;
76 class InterruptArguments : StackObj {
77 private:
78 Thread* _thread; // the thread to signal was dispatched to
79 ucontext_t* _ucontext; // the machine context at the time of the signal
80
81 public:
82 InterruptArguments(Thread* thread, ucontext_t* ucontext) {
83 _thread = thread;
84 _ucontext = ucontext;
85 }
86
87 Thread* thread() const { return _thread; }
88 ucontext_t* ucontext() const { return _ucontext; }
89 };
90
91 // There are currently no asynchronous callbacks - and we'd better not
92 // support them in the future either, as they need to be deallocated from
93 // the interrupt handler, which is not safe; they also require locks to
94 // protect the callback queue.
95
96 class Sync_Interrupt_Callback : private StackObj {
97 protected:
98 volatile bool _is_done;
99 Monitor* _sync;
100 Thread* _target;
101 public:
102 Sync_Interrupt_Callback(Monitor * sync) {
103 _is_done = false; _target = NULL; _sync = sync;
104 }
105
106 bool is_done() const { return _is_done; }
107 Thread* target() const { return _target; }
108
109 int interrupt(Thread * target, int timeout);
110
111 // override to implement the callback.
112 virtual void execute(InterruptArguments *args) = 0;
113
114 void leave_callback();
115 };
116 76
117 private: 77 private:
118 78 ucontext_t* _ucontext;
119 Sync_Interrupt_Callback * volatile _current_callback;
120 enum {
121 callback_in_progress = 1
122 };
123 Mutex * _current_callback_lock; // only used on v8
124 79
125 public: 80 public:
126 81 ucontext_t* ucontext() const { return _ucontext; }
127 int set_interrupt_callback (Sync_Interrupt_Callback * cb); 82 void set_ucontext(ucontext_t* ptr) { _ucontext = ptr; }
128 void remove_interrupt_callback(Sync_Interrupt_Callback * cb); 83 static void SR_handler(Thread* thread, ucontext_t* uc);
129 void do_interrupt_callbacks_at_interrupt(InterruptArguments *args);
130 84
131 // *************************************************************** 85 // ***************************************************************
132 // java.lang.Thread.interrupt state. 86 // java.lang.Thread.interrupt state.
133 // *************************************************************** 87 // ***************************************************************
134 88