Mercurial > jdk8-mips64-public > hotspot / annotate

src/os/solaris/vm/osThread_solaris.hpp@726b40449bd2 (annotated)

src/os/solaris/vm/osThread_solaris.hpp

Tue, 22 Jun 2010 09:46:15 -0400

author
zgu
date
Tue, 22 Jun 2010 09:46:15 -0400
changeset 1979
726b40449bd2
parent 1907
c18cbe5936b8
child 2314
f95d63e2154a
permissions
-rw-r--r--

6939019: Source code adjustments for parfait compilation of hotspot
Summary: Minor source code adjustments for parfait compilation, since it uses different compiler vs. JDK
Reviewed-by: never, kamg

duke@435 1 /*
trims@1907 2 * Copyright (c) 1997, 2006, Oracle and/or its affiliates. All rights reserved.
duke@435 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
duke@435 4 *
duke@435 5 * This code is free software; you can redistribute it and/or modify it
duke@435 6 * under the terms of the GNU General Public License version 2 only, as
duke@435 7 * published by the Free Software Foundation.
duke@435 8 *
duke@435 9 * This code is distributed in the hope that it will be useful, but WITHOUT
duke@435 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
duke@435 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
duke@435 12 * version 2 for more details (a copy is included in the LICENSE file that
duke@435 13 * accompanied this code).
duke@435 14 *
duke@435 15 * You should have received a copy of the GNU General Public License version
duke@435 16 * 2 along with this work; if not, write to the Free Software Foundation,
duke@435 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
duke@435 18 *
trims@1907 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
trims@1907 20 * or visit www.oracle.com if you need additional information or have any
trims@1907 21 * questions.
duke@435 22 *
duke@435 23 */
duke@435 24
duke@435 25 // This is embedded via include into the class OSThread
duke@435 26
duke@435 27 private:
duke@435 28
duke@435 29 thread_t _thread_id; // Solaris thread id
duke@435 30 unsigned int _lwp_id; // lwp ID, only used with bound threads
duke@435 31 sigset_t _caller_sigmask; // Caller's signal mask
duke@435 32 bool _vm_created_thread; // true if the VM create this thread
duke@435 33 // false if primary thread or attached thread
duke@435 34 public:
duke@435 35
duke@435 36 thread_t thread_id() const { return _thread_id; }
duke@435 37
duke@435 38 unsigned int lwp_id() const { return _lwp_id; }
duke@435 39
duke@435 40 // Set and get state of _vm_created_thread flag
duke@435 41 void set_vm_created() { _vm_created_thread = true; }
duke@435 42 bool is_vm_created() { return _vm_created_thread; }
duke@435 43
duke@435 44 // Methods to save/restore caller's signal mask
duke@435 45 sigset_t caller_sigmask() const { return _caller_sigmask; }
duke@435 46 void set_caller_sigmask(sigset_t sigmask) { _caller_sigmask = sigmask; }
duke@435 47
duke@435 48 #ifndef PRODUCT
duke@435 49 // Used for debugging, return a unique integer for each thread.
duke@435 50 int thread_identifier() const { return _thread_id; }
duke@435 51 #endif
duke@435 52 #ifdef ASSERT
duke@435 53 // On solaris reposition can fail in two ways:
duke@435 54 // 1: a mismatched pc, because signal is delivered too late, target thread
duke@435 55 // is resumed.
duke@435 56 // 2: on a timeout where signal is lost, target thread is resumed.
duke@435 57 bool valid_reposition_failure() {
duke@435 58 // only 1 and 2 can happen and we can handle both of them
duke@435 59 return true;
duke@435 60 }
duke@435 61 #endif
duke@435 62 void set_thread_id(thread_t id) { _thread_id = id; }
duke@435 63 void set_lwp_id(unsigned int id){ _lwp_id = id; }
duke@435 64
duke@435 65 // ***************************************************************
duke@435 66 // interrupt support. interrupts (using signals) are used to get
duke@435 67 // the thread context (get_thread_pc), to set the thread context
duke@435 68 // (set_thread_pc), and to implement java.lang.Thread.interrupt.
duke@435 69 // ***************************************************************
duke@435 70
duke@435 71 public:
duke@435 72
duke@435 73 class InterruptArguments : StackObj {
duke@435 74 private:
duke@435 75 Thread* _thread; // the thread to signal was dispatched to
duke@435 76 ucontext_t* _ucontext; // the machine context at the time of the signal
duke@435 77
duke@435 78 public:
duke@435 79 InterruptArguments(Thread* thread, ucontext_t* ucontext) {
duke@435 80 _thread = thread;
duke@435 81 _ucontext = ucontext;
duke@435 82 }
duke@435 83
duke@435 84 Thread* thread() const { return _thread; }
duke@435 85 ucontext_t* ucontext() const { return _ucontext; }
duke@435 86 };
duke@435 87
duke@435 88 // There are currently no asynchronous callbacks - and we'd better not
duke@435 89 // support them in the future either, as they need to be deallocated from
duke@435 90 // the interrupt handler, which is not safe; they also require locks to
duke@435 91 // protect the callback queue.
duke@435 92
duke@435 93 class Sync_Interrupt_Callback : private StackObj {
duke@435 94 protected:
duke@435 95 volatile bool _is_done;
duke@435 96 Monitor* _sync;
duke@435 97 Thread* _target;
duke@435 98 public:
duke@435 99 Sync_Interrupt_Callback(Monitor * sync) {
duke@435 100 _is_done = false; _target = NULL; _sync = sync;
duke@435 101 }
duke@435 102
duke@435 103 bool is_done() const { return _is_done; }
duke@435 104 Thread* target() const { return _target; }
duke@435 105
duke@435 106 int interrupt(Thread * target, int timeout);
duke@435 107
duke@435 108 // override to implement the callback.
duke@435 109 virtual void execute(InterruptArguments *args) = 0;
duke@435 110
duke@435 111 void leave_callback();
duke@435 112 };
duke@435 113
duke@435 114 private:
duke@435 115
duke@435 116 Sync_Interrupt_Callback * volatile _current_callback;
duke@435 117 enum {
duke@435 118 callback_in_progress = 1
duke@435 119 };
duke@435 120 Mutex * _current_callback_lock; // only used on v8
duke@435 121
duke@435 122 public:
duke@435 123
duke@435 124 int set_interrupt_callback (Sync_Interrupt_Callback * cb);
duke@435 125 void remove_interrupt_callback(Sync_Interrupt_Callback * cb);
zgu@1979 126 void do_interrupt_callbacks_at_interrupt(InterruptArguments *args);
duke@435 127
duke@435 128 // ***************************************************************
duke@435 129 // java.lang.Thread.interrupt state.
duke@435 130 // ***************************************************************
duke@435 131
duke@435 132 private:
duke@435 133
duke@435 134 JavaThreadState _saved_interrupt_thread_state; // the thread state before a system call -- restored afterward
duke@435 135
duke@435 136 public:
duke@435 137
duke@435 138
duke@435 139 JavaThreadState saved_interrupt_thread_state() { return _saved_interrupt_thread_state; }
duke@435 140 void set_saved_interrupt_thread_state(JavaThreadState state) { _saved_interrupt_thread_state = state; }
duke@435 141
duke@435 142 static void handle_spinlock_contention(int tries); // Used for thread local eden locking
duke@435 143
duke@435 144 // ***************************************************************
duke@435 145 // Platform dependent initialization and cleanup
duke@435 146 // ***************************************************************
duke@435 147
duke@435 148 private:
duke@435 149
duke@435 150 void pd_initialize();
duke@435 151 void pd_destroy();

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