never@3156: /*
sla@5237:  * Copyright (c) 1999, 2013, Oracle and/or its affiliates. All rights reserved.
never@3156:  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
never@3156:  *
never@3156:  * This code is free software; you can redistribute it and/or modify it
never@3156:  * under the terms of the GNU General Public License version 2 only, as
never@3156:  * published by the Free Software Foundation.
never@3156:  *
never@3156:  * This code is distributed in the hope that it will be useful, but WITHOUT
never@3156:  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
never@3156:  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
never@3156:  * version 2 for more details (a copy is included in the LICENSE file that
never@3156:  * accompanied this code).
never@3156:  *
never@3156:  * You should have received a copy of the GNU General Public License version
never@3156:  * 2 along with this work; if not, write to the Free Software Foundation,
never@3156:  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
never@3156:  *
never@3156:  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
never@3156:  * or visit www.oracle.com if you need additional information or have any
never@3156:  * questions.
never@3156:  *
never@3156:  */
never@3156: 
never@3156: #ifndef OS_BSD_VM_OSTHREAD_BSD_HPP
never@3156: #define OS_BSD_VM_OSTHREAD_BSD_HPP
never@3156: 
never@3156:  private:
never@3156:   int _thread_type;
never@3156: 
never@3156:  public:
never@3156: 
never@3156:   int thread_type() const {
never@3156:     return _thread_type;
never@3156:   }
never@3156:   void set_thread_type(int type) {
never@3156:     _thread_type = type;
never@3156:   }
never@3156: 
never@3156:  private:
never@3156: 
sla@3587: #ifdef __APPLE__
rbackman@3796:   typedef thread_t thread_id_t;
sla@3587: #else
dsamersoff@5834:   typedef pid_t thread_id_t;
rbackman@3796: #endif
rbackman@3796: 
sla@3587:   // _pthread_id is the pthread id, which is used by library calls
sla@3587:   // (e.g. pthread_kill).
never@3156:   pthread_t _pthread_id;
sla@3587: 
sla@4564:   // This is the "thread_id" from struct thread_identifier_info. According to a
sla@4564:   // comment in thread_info.h, this is a "system-wide unique 64-bit thread id".
sla@4564:   // The value is used by SA to correlate threads.
sla@4564:   uint64_t _unique_thread_id;
sla@4564: 
never@3156:   sigset_t _caller_sigmask; // Caller's signal mask
never@3156: 
never@3156:  public:
never@3156: 
never@3156:   // Methods to save/restore caller's signal mask
never@3156:   sigset_t  caller_sigmask() const       { return _caller_sigmask; }
never@3156:   void    set_caller_sigmask(sigset_t sigmask)  { _caller_sigmask = sigmask; }
never@3156: 
never@3156: #ifndef PRODUCT
never@3156:   // Used for debugging, return a unique integer for each thread.
never@3156:   intptr_t thread_identifier() const   { return (intptr_t)_pthread_id; }
never@3156: #endif
rbackman@3796: 
never@3156: #ifdef ASSERT
never@3156:   // We expect no reposition failures so kill vm if we get one.
never@3156:   //
never@3156:   bool valid_reposition_failure() {
never@3156:     return false;
never@3156:   }
never@3156: #endif // ASSERT
rbackman@3796: 
never@3156:   pthread_t pthread_id() const {
never@3156:     return _pthread_id;
never@3156:   }
never@3156:   void set_pthread_id(pthread_t tid) {
never@3156:     _pthread_id = tid;
never@3156:   }
never@3156: 
sla@4564:   void set_unique_thread_id(uint64_t id) {
sla@4564:     _unique_thread_id = id;
sla@4564:   }
sla@4564: 
never@3156:   // ***************************************************************
never@3156:   // suspension support.
never@3156:   // ***************************************************************
never@3156: 
never@3156: public:
never@3156:   // flags that support signal based suspend/resume on Bsd are in a
never@3156:   // separate class to avoid confusion with many flags in OSThread that
never@3156:   // are used by VM level suspend/resume.
sla@5237:   os::SuspendResume sr;
never@3156: 
never@3156:   // _ucontext and _siginfo are used by SR_handler() to save thread context,
never@3156:   // and they will later be used to walk the stack or reposition thread PC.
never@3156:   // If the thread is not suspended in SR_handler() (e.g. self suspend),
never@3156:   // the value in _ucontext is meaningless, so we must use the last Java
never@3156:   // frame information as the frame. This will mean that for threads
never@3156:   // that are parked on a mutex the profiler (and safepoint mechanism)
never@3156:   // will see the thread as if it were still in the Java frame. This
never@3156:   // not a problem for the profiler since the Java frame is a close
never@3156:   // enough result. For the safepoint mechanism when the give it the
never@3156:   // Java frame we are not at a point where the safepoint needs the
never@3156:   // frame to that accurate (like for a compiled safepoint) since we
never@3156:   // should be in a place where we are native and will block ourselves
never@3156:   // if we transition.
never@3156: private:
never@3156:   void* _siginfo;
never@3156:   ucontext_t* _ucontext;
never@3156:   int _expanding_stack;                 /* non zero if manually expanding stack */
never@3156:   address _alt_sig_stack;               /* address of base of alternate signal stack */
never@3156: 
never@3156: public:
never@3156:   void* siginfo() const                   { return _siginfo;  }
never@3156:   void set_siginfo(void* ptr)             { _siginfo = ptr;   }
never@3156:   ucontext_t* ucontext() const            { return _ucontext; }
never@3156:   void set_ucontext(ucontext_t* ptr)      { _ucontext = ptr;  }
never@3156:   void set_expanding_stack(void)          { _expanding_stack = 1;  }
never@3156:   void clear_expanding_stack(void)        { _expanding_stack = 0;  }
never@3156:   int  expanding_stack(void)              { return _expanding_stack;  }
never@3156: 
never@3156:   void set_alt_sig_stack(address val)     { _alt_sig_stack = val; }
never@3156:   address alt_sig_stack(void)             { return _alt_sig_stack; }
never@3156: 
never@3156: private:
never@3156:   Monitor* _startThread_lock;     // sync parent and child in thread creation
never@3156: 
never@3156: public:
never@3156: 
never@3156:   Monitor* startThread_lock() const {
never@3156:     return _startThread_lock;
never@3156:   }
never@3156: 
never@3156:   // ***************************************************************
never@3156:   // Platform dependent initialization and cleanup
never@3156:   // ***************************************************************
never@3156: 
never@3156: private:
never@3156: 
never@3156:   void pd_initialize();
never@3156:   void pd_destroy();
never@3156: 
never@3156: // Reconciliation History
never@3156: // osThread_solaris.hpp 1.24 99/08/27 13:11:54
never@3156: // End
never@3156: 
never@3156: #endif // OS_BSD_VM_OSTHREAD_BSD_HPP