Mercurial > hg > graal-jvmci-8
annotate src/os/solaris/vm/osThread_solaris.hpp @ 4854:de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
Summary: Add CriticalPriority == MaxPriority+1 and enable scheduling class as well as thread priority to change on Solaris.
Reviewed-by: dholmes, dcubed
| author | phh |
|---|---|
| date | Thu, 26 Jan 2012 20:06:06 -0500 |
| parents | f95d63e2154a |
| children | 0105f367a14c |
| rev | line source |
|---|---|
| 0 | 1 /* |
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4854
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
1972
diff
changeset
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2 * Copyright (c) 1997, 2012, Oracle and/or its affiliates. All rights reserved. |
| 0 | 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 * | |
|
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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 OS_SOLARIS_VM_OSTHREAD_SOLARIS_HPP |
| 26 #define OS_SOLARIS_VM_OSTHREAD_SOLARIS_HPP | |
| 27 | |
| 0 | 28 // This is embedded via include into the class OSThread |
| 29 | |
| 30 private: | |
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4854
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
1972
diff
changeset
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31 thread_t _thread_id; // Solaris thread id |
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de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
1972
diff
changeset
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32 uint _lwp_id; // lwp ID, only used with bound threads |
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de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
1972
diff
changeset
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33 int _native_priority; // Saved native priority when starting |
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de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
1972
diff
changeset
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34 // a bound thread |
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de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
1972
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changeset
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35 sigset_t _caller_sigmask; // Caller's signal mask |
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de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
1972
diff
changeset
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36 bool _vm_created_thread; // true if the VM created this thread, |
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de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
1972
diff
changeset
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37 // false if primary thread or attached thread |
| 0 | 38 public: |
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4854
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
1972
diff
changeset
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39 thread_t thread_id() const { return _thread_id; } |
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de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
1972
diff
changeset
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40 uint lwp_id() const { return _lwp_id; } |
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de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
1972
diff
changeset
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41 int native_priority() const { return _native_priority; } |
| 0 | 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 | |
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4854
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
1972
diff
changeset
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65 void set_thread_id(thread_t id) { _thread_id = id; } |
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de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
1972
diff
changeset
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66 void set_lwp_id(uint id) { _lwp_id = id; } |
|
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
1972
diff
changeset
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67 void set_native_priority(int prio) { _native_priority = prio; } |
| 0 | 68 |
| 69 // *************************************************************** | |
| 70 // interrupt support. interrupts (using signals) are used to get | |
| 71 // the thread context (get_thread_pc), to set the thread context | |
| 72 // (set_thread_pc), and to implement java.lang.Thread.interrupt. | |
| 73 // *************************************************************** | |
| 74 | |
| 75 public: | |
| 76 | |
| 77 class InterruptArguments : StackObj { | |
| 78 private: | |
| 79 Thread* _thread; // the thread to signal was dispatched to | |
| 80 ucontext_t* _ucontext; // the machine context at the time of the signal | |
| 81 | |
| 82 public: | |
| 83 InterruptArguments(Thread* thread, ucontext_t* ucontext) { | |
| 84 _thread = thread; | |
| 85 _ucontext = ucontext; | |
| 86 } | |
| 87 | |
| 88 Thread* thread() const { return _thread; } | |
| 89 ucontext_t* ucontext() const { return _ucontext; } | |
| 90 }; | |
| 91 | |
| 92 // There are currently no asynchronous callbacks - and we'd better not | |
| 93 // support them in the future either, as they need to be deallocated from | |
| 94 // the interrupt handler, which is not safe; they also require locks to | |
| 95 // protect the callback queue. | |
| 96 | |
| 97 class Sync_Interrupt_Callback : private StackObj { | |
| 98 protected: | |
| 99 volatile bool _is_done; | |
| 100 Monitor* _sync; | |
| 101 Thread* _target; | |
| 102 public: | |
| 103 Sync_Interrupt_Callback(Monitor * sync) { | |
| 104 _is_done = false; _target = NULL; _sync = sync; | |
| 105 } | |
| 106 | |
| 107 bool is_done() const { return _is_done; } | |
| 108 Thread* target() const { return _target; } | |
| 109 | |
| 110 int interrupt(Thread * target, int timeout); | |
| 111 | |
| 112 // override to implement the callback. | |
| 113 virtual void execute(InterruptArguments *args) = 0; | |
| 114 | |
| 115 void leave_callback(); | |
| 116 }; | |
| 117 | |
| 118 private: | |
| 119 | |
| 120 Sync_Interrupt_Callback * volatile _current_callback; | |
| 121 enum { | |
| 122 callback_in_progress = 1 | |
| 123 }; | |
| 124 Mutex * _current_callback_lock; // only used on v8 | |
| 125 | |
| 126 public: | |
| 127 | |
| 128 int set_interrupt_callback (Sync_Interrupt_Callback * cb); | |
| 129 void remove_interrupt_callback(Sync_Interrupt_Callback * cb); | |
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130 void do_interrupt_callbacks_at_interrupt(InterruptArguments *args); |
| 0 | 131 |
| 132 // *************************************************************** | |
| 133 // java.lang.Thread.interrupt state. | |
| 134 // *************************************************************** | |
| 135 | |
| 136 private: | |
| 137 | |
| 138 JavaThreadState _saved_interrupt_thread_state; // the thread state before a system call -- restored afterward | |
| 139 | |
| 140 public: | |
| 141 | |
| 142 | |
| 143 JavaThreadState saved_interrupt_thread_state() { return _saved_interrupt_thread_state; } | |
| 144 void set_saved_interrupt_thread_state(JavaThreadState state) { _saved_interrupt_thread_state = state; } | |
| 145 | |
| 146 static void handle_spinlock_contention(int tries); // Used for thread local eden locking | |
| 147 | |
| 148 // *************************************************************** | |
| 149 // Platform dependent initialization and cleanup | |
| 150 // *************************************************************** | |
| 151 | |
| 152 private: | |
| 153 | |
| 154 void pd_initialize(); | |
| 155 void pd_destroy(); | |
| 1972 | 156 |
| 157 #endif // OS_SOLARIS_VM_OSTHREAD_SOLARIS_HPP |