3789983e89
Reviewed-by: darcy, ihse
89 lines
3.2 KiB
C++
89 lines
3.2 KiB
C++
/*
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* Copyright (c) 1997, 2017, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*
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*/
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#ifndef OS_SOLARIS_VM_OSTHREAD_SOLARIS_HPP
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#define OS_SOLARIS_VM_OSTHREAD_SOLARIS_HPP
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// This is embedded via include into the class OSThread
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public:
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typedef thread_t thread_id_t;
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private:
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uint _lwp_id; // lwp ID, only used with bound threads
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int _native_priority; // Saved native priority when starting
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// a bound thread
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sigset_t _caller_sigmask; // Caller's signal mask
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bool _vm_created_thread; // true if the VM created this thread,
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// false if primary thread or attached thread
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public:
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uint lwp_id() const { return _lwp_id; }
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int native_priority() const { return _native_priority; }
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// Set and get state of _vm_created_thread flag
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void set_vm_created() { _vm_created_thread = true; }
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bool is_vm_created() { return _vm_created_thread; }
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// Methods to save/restore caller's signal mask
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sigset_t caller_sigmask() const { return _caller_sigmask; }
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void set_caller_sigmask(sigset_t sigmask) { _caller_sigmask = sigmask; }
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#ifndef PRODUCT
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// Used for debugging, return a unique integer for each thread.
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int thread_identifier() const { return _thread_id; }
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#endif
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#ifdef ASSERT
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// On solaris reposition can fail in two ways:
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// 1: a mismatched pc, because signal is delivered too late, target thread
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// is resumed.
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// 2: on a timeout where signal is lost, target thread is resumed.
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bool valid_reposition_failure() {
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// only 1 and 2 can happen and we can handle both of them
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return true;
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}
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#endif
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void set_lwp_id(uint id) { _lwp_id = id; }
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void set_native_priority(int prio) { _native_priority = prio; }
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public:
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os::SuspendResume sr;
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private:
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ucontext_t* _ucontext;
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public:
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ucontext_t* ucontext() const { return _ucontext; }
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void set_ucontext(ucontext_t* ptr) { _ucontext = ptr; }
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static void SR_handler(Thread* thread, ucontext_t* uc);
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// ***************************************************************
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// Platform dependent initialization and cleanup
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// ***************************************************************
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private:
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void pd_initialize();
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void pd_destroy();
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#endif // OS_SOLARIS_VM_OSTHREAD_SOLARIS_HPP
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