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comparison: src/os/solaris/vm/osThread_solaris.hpp
src/os/solaris/vm/osThread_solaris.hpp
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| 1 /* | |
| 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. | |
| 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 * | |
| 23 */ | |
| 24 | |
| 25 #ifndef OS_SOLARIS_VM_OSTHREAD_SOLARIS_HPP | |
| 26 #define OS_SOLARIS_VM_OSTHREAD_SOLARIS_HPP | |
| 27 | |
| 28 // This is embedded via include into the class OSThread | |
| 29 public: | |
| 30 typedef thread_t thread_id_t; | |
| 31 | |
| 32 private: | |
| 33 uint _lwp_id; // lwp ID, only used with bound threads | |
| 34 int _native_priority; // Saved native priority when starting | |
| 35 // a bound thread | |
| 36 sigset_t _caller_sigmask; // Caller's signal mask | |
| 37 bool _vm_created_thread; // true if the VM created this thread, | |
| 38 // false if primary thread or attached thread | |
| 39 public: | |
| 40 uint lwp_id() const { return _lwp_id; } | |
| 41 int native_priority() const { return _native_priority; } | |
| 42 | |
| 43 // Set and get state of _vm_created_thread flag | |
| 44 void set_vm_created() { _vm_created_thread = true; } | |
| 45 bool is_vm_created() { return _vm_created_thread; } | |
| 46 | |
| 47 // Methods to save/restore caller's signal mask | |
| 48 sigset_t caller_sigmask() const { return _caller_sigmask; } | |
| 49 void set_caller_sigmask(sigset_t sigmask) { _caller_sigmask = sigmask; } | |
| 50 | |
| 51 #ifndef PRODUCT | |
| 52 // Used for debugging, return a unique integer for each thread. | |
| 53 int thread_identifier() const { return _thread_id; } | |
| 54 #endif | |
| 55 #ifdef ASSERT | |
| 56 // On solaris reposition can fail in two ways: | |
| 57 // 1: a mismatched pc, because signal is delivered too late, target thread | |
| 58 // is resumed. | |
| 59 // 2: on a timeout where signal is lost, target thread is resumed. | |
| 60 bool valid_reposition_failure() { | |
| 61 // only 1 and 2 can happen and we can handle both of them | |
| 62 return true; | |
| 63 } | |
| 64 #endif | |
| 65 void set_lwp_id(uint id) { _lwp_id = id; } | |
| 66 void set_native_priority(int prio) { _native_priority = prio; } | |
| 67 | |
| 68 // *************************************************************** | |
| 69 // interrupt support. interrupts (using signals) are used to get | |
| 70 // the thread context (get_thread_pc), to set the thread context | |
| 71 // (set_thread_pc), and to implement java.lang.Thread.interrupt. | |
| 72 // *************************************************************** | |
| 73 | |
| 74 public: | |
| 75 os::SuspendResume sr; | |
| 76 | |
| 77 private: | |
| 78 ucontext_t* _ucontext; | |
| 79 | |
| 80 public: | |
| 81 ucontext_t* ucontext() const { return _ucontext; } | |
| 82 void set_ucontext(ucontext_t* ptr) { _ucontext = ptr; } | |
| 83 static void SR_handler(Thread* thread, ucontext_t* uc); | |
| 84 | |
| 85 // *************************************************************** | |
| 86 // java.lang.Thread.interrupt state. | |
| 87 // *************************************************************** | |
| 88 | |
| 89 private: | |
| 90 | |
| 91 JavaThreadState _saved_interrupt_thread_state; // the thread state before a system call -- restored afterward | |
| 92 | |
| 93 public: | |
| 94 | |
| 95 | |
| 96 JavaThreadState saved_interrupt_thread_state() { return _saved_interrupt_thread_state; } | |
| 97 void set_saved_interrupt_thread_state(JavaThreadState state) { _saved_interrupt_thread_state = state; } | |
| 98 | |
| 99 static void handle_spinlock_contention(int tries); // Used for thread local eden locking | |
| 100 | |
| 101 // *************************************************************** | |
| 102 // Platform dependent initialization and cleanup | |
| 103 // *************************************************************** | |
| 104 | |
| 105 private: | |
| 106 | |
| 107 void pd_initialize(); | |
| 108 void pd_destroy(); | |
| 109 | |
| 110 #endif // OS_SOLARIS_VM_OSTHREAD_SOLARIS_HPP |
