aoqi@0: /*
aoqi@0:  * Copyright (c) 1997, 2013, Oracle and/or its affiliates. All rights reserved.
aoqi@0:  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
aoqi@0:  *
aoqi@0:  * This code is free software; you can redistribute it and/or modify it
aoqi@0:  * under the terms of the GNU General Public License version 2 only, as
aoqi@0:  * published by the Free Software Foundation.
aoqi@0:  *
aoqi@0:  * This code is distributed in the hope that it will be useful, but WITHOUT
aoqi@0:  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
aoqi@0:  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
aoqi@0:  * version 2 for more details (a copy is included in the LICENSE file that
aoqi@0:  * accompanied this code).
aoqi@0:  *
aoqi@0:  * You should have received a copy of the GNU General Public License version
aoqi@0:  * 2 along with this work; if not, write to the Free Software Foundation,
aoqi@0:  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
aoqi@0:  *
aoqi@0:  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
aoqi@0:  * or visit www.oracle.com if you need additional information or have any
aoqi@0:  * questions.
aoqi@0:  *
aoqi@0:  */
aoqi@0: 
aoqi@0: #ifndef OS_SOLARIS_VM_OSTHREAD_SOLARIS_HPP
aoqi@0: #define OS_SOLARIS_VM_OSTHREAD_SOLARIS_HPP
aoqi@0: 
aoqi@0: // This is embedded via include into the class OSThread
aoqi@0:  public:
aoqi@0:   typedef thread_t thread_id_t;
aoqi@0: 
aoqi@0:  private:
aoqi@0:   uint     _lwp_id;            // lwp ID, only used with bound threads
aoqi@0:   int      _native_priority;   // Saved native priority when starting
aoqi@0:                                // a bound thread
aoqi@0:   sigset_t _caller_sigmask;    // Caller's signal mask
aoqi@0:   bool     _vm_created_thread; // true if the VM created this thread,
aoqi@0:                                // false if primary thread or attached thread
aoqi@0:  public:
aoqi@0:   uint     lwp_id() const          { return _lwp_id; }
aoqi@0:   int      native_priority() const { return _native_priority; }
aoqi@0: 
aoqi@0:   // Set and get state of _vm_created_thread flag
aoqi@0:   void set_vm_created()           { _vm_created_thread = true; }
aoqi@0:   bool is_vm_created()            { return _vm_created_thread; }
aoqi@0: 
aoqi@0:   // Methods to save/restore caller's signal mask
aoqi@0:   sigset_t  caller_sigmask() const       { return _caller_sigmask; }
aoqi@0:   void    set_caller_sigmask(sigset_t sigmask)  { _caller_sigmask = sigmask; }
aoqi@0: 
aoqi@0: #ifndef PRODUCT
aoqi@0:   // Used for debugging, return a unique integer for each thread.
aoqi@0:   int thread_identifier() const   { return _thread_id; }
aoqi@0: #endif
aoqi@0: #ifdef ASSERT
aoqi@0:   // On solaris reposition can fail in two ways:
aoqi@0:   // 1: a mismatched pc, because signal is delivered too late, target thread
aoqi@0:   //    is resumed.
aoqi@0:   // 2: on a timeout where signal is lost, target thread is resumed.
aoqi@0:   bool valid_reposition_failure() {
aoqi@0:     // only 1 and 2 can happen and we can handle both of them
aoqi@0:     return true;
aoqi@0:   }
aoqi@0: #endif
aoqi@0:   void set_lwp_id(uint id)           { _lwp_id = id; }
aoqi@0:   void set_native_priority(int prio) { _native_priority = prio; }
aoqi@0: 
aoqi@0:  // ***************************************************************
aoqi@0:  // interrupt support.  interrupts (using signals) are used to get
aoqi@0:  // the thread context (get_thread_pc), to set the thread context
aoqi@0:  // (set_thread_pc), and to implement java.lang.Thread.interrupt.
aoqi@0:  // ***************************************************************
aoqi@0: 
aoqi@0:  public:
aoqi@0:   os::SuspendResume sr;
aoqi@0: 
aoqi@0:  private:
aoqi@0:   ucontext_t* _ucontext;
aoqi@0: 
aoqi@0:  public:
aoqi@0:   ucontext_t* ucontext() const { return _ucontext; }
aoqi@0:   void set_ucontext(ucontext_t* ptr) { _ucontext = ptr; }
aoqi@0:   static void SR_handler(Thread* thread, ucontext_t* uc);
aoqi@0: 
aoqi@0:  // ***************************************************************
aoqi@0:  // java.lang.Thread.interrupt state.
aoqi@0:  // ***************************************************************
aoqi@0: 
aoqi@0:  private:
aoqi@0: 
aoqi@0:   JavaThreadState      _saved_interrupt_thread_state;       // the thread state before a system call -- restored afterward
aoqi@0: 
aoqi@0:  public:
aoqi@0: 
aoqi@0: 
aoqi@0:   JavaThreadState   saved_interrupt_thread_state()                              { return _saved_interrupt_thread_state; }
aoqi@0:   void              set_saved_interrupt_thread_state(JavaThreadState state)     { _saved_interrupt_thread_state = state; }
aoqi@0: 
aoqi@0:   static void       handle_spinlock_contention(int tries);                      // Used for thread local eden locking
aoqi@0: 
aoqi@0:   // ***************************************************************
aoqi@0:   // Platform dependent initialization and cleanup
aoqi@0:   // ***************************************************************
aoqi@0: 
aoqi@0: private:
aoqi@0: 
aoqi@0:   void pd_initialize();
aoqi@0:   void pd_destroy();
aoqi@0: 
aoqi@0: #endif // OS_SOLARIS_VM_OSTHREAD_SOLARIS_HPP