--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/src/os/bsd/vm/osThread_bsd.hpp Sun Sep 25 16:03:29 2011 -0700
@@ -0,0 +1,165 @@
+/*
+ * Copyright (c) 1999, 2010, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ *
+ */
+
+#ifndef OS_BSD_VM_OSTHREAD_BSD_HPP
+#define OS_BSD_VM_OSTHREAD_BSD_HPP
+
+ private:
+ int _thread_type;
+
+ public:
+
+ int thread_type() const {
+ return _thread_type;
+ }
+ void set_thread_type(int type) {
+ _thread_type = type;
+ }
+
+ private:
+
+#ifdef _ALLBSD_SOURCE
+ // _thread_id and _pthread_id are the same on BSD
+ // keep both to minimize code divergence in os_bsd.cpp
+ pthread_t _thread_id;
+ pthread_t _pthread_id;
+#else
+ // _thread_id is kernel thread id (similar to LWP id on Solaris). Each
+ // thread has a unique thread_id (BsdThreads or NPTL). It can be used
+ // to access /proc.
+ pid_t _thread_id;
+
+ // _pthread_id is the pthread id, which is used by library calls
+ // (e.g. pthread_kill).
+ pthread_t _pthread_id;
+#endif
+
+ sigset_t _caller_sigmask; // Caller's signal mask
+
+ public:
+
+ // Methods to save/restore caller's signal mask
+ sigset_t caller_sigmask() const { return _caller_sigmask; }
+ void set_caller_sigmask(sigset_t sigmask) { _caller_sigmask = sigmask; }
+
+#ifdef _ALLBSD_SOURCE
+ pthread_t thread_id() const {
+ return _thread_id;
+ }
+#else
+ pid_t thread_id() const {
+ return _thread_id;
+ }
+#endif
+#ifndef PRODUCT
+ // Used for debugging, return a unique integer for each thread.
+ intptr_t thread_identifier() const { return (intptr_t)_pthread_id; }
+#endif
+#ifdef ASSERT
+ // We expect no reposition failures so kill vm if we get one.
+ //
+ bool valid_reposition_failure() {
+ return false;
+ }
+#endif // ASSERT
+#ifdef _ALLBSD_SOURCE
+ void set_thread_id(pthread_t id) {
+ _thread_id = id;
+ }
+#else
+ void set_thread_id(pid_t id) {
+ _thread_id = id;
+ }
+#endif
+ pthread_t pthread_id() const {
+ return _pthread_id;
+ }
+ void set_pthread_id(pthread_t tid) {
+ _pthread_id = tid;
+ }
+
+ // ***************************************************************
+ // suspension support.
+ // ***************************************************************
+
+public:
+ // flags that support signal based suspend/resume on Bsd are in a
+ // separate class to avoid confusion with many flags in OSThread that
+ // are used by VM level suspend/resume.
+ os::Bsd::SuspendResume sr;
+
+ // _ucontext and _siginfo are used by SR_handler() to save thread context,
+ // and they will later be used to walk the stack or reposition thread PC.
+ // If the thread is not suspended in SR_handler() (e.g. self suspend),
+ // the value in _ucontext is meaningless, so we must use the last Java
+ // frame information as the frame. This will mean that for threads
+ // that are parked on a mutex the profiler (and safepoint mechanism)
+ // will see the thread as if it were still in the Java frame. This
+ // not a problem for the profiler since the Java frame is a close
+ // enough result. For the safepoint mechanism when the give it the
+ // Java frame we are not at a point where the safepoint needs the
+ // frame to that accurate (like for a compiled safepoint) since we
+ // should be in a place where we are native and will block ourselves
+ // if we transition.
+private:
+ void* _siginfo;
+ ucontext_t* _ucontext;
+ int _expanding_stack; /* non zero if manually expanding stack */
+ address _alt_sig_stack; /* address of base of alternate signal stack */
+
+public:
+ void* siginfo() const { return _siginfo; }
+ void set_siginfo(void* ptr) { _siginfo = ptr; }
+ ucontext_t* ucontext() const { return _ucontext; }
+ void set_ucontext(ucontext_t* ptr) { _ucontext = ptr; }
+ void set_expanding_stack(void) { _expanding_stack = 1; }
+ void clear_expanding_stack(void) { _expanding_stack = 0; }
+ int expanding_stack(void) { return _expanding_stack; }
+
+ void set_alt_sig_stack(address val) { _alt_sig_stack = val; }
+ address alt_sig_stack(void) { return _alt_sig_stack; }
+
+private:
+ Monitor* _startThread_lock; // sync parent and child in thread creation
+
+public:
+
+ Monitor* startThread_lock() const {
+ return _startThread_lock;
+ }
+
+ // ***************************************************************
+ // Platform dependent initialization and cleanup
+ // ***************************************************************
+
+private:
+
+ void pd_initialize();
+ void pd_destroy();
+
+// Reconciliation History
+// osThread_solaris.hpp 1.24 99/08/27 13:11:54
+// End
+
+#endif // OS_BSD_VM_OSTHREAD_BSD_HPP