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src/share/vm/runtime/monitorChunk.hpp@fb57d4cf76c2 (annotated)

src/share/vm/runtime/monitorChunk.hpp

Tue, 11 May 2010 14:35:43 -0700

author

prr

date

Tue, 11 May 2010 14:35:43 -0700

changeset 1840

fb57d4cf76c2

parent 435

a61af66fc99e

child 1907

c18cbe5936b8

permissions

-rw-r--r--

6931180: Migration to recent versions of MS Platform SDK
6951582: Build problems on win64
Summary: Changes to enable building JDK7 with Microsoft Visual Studio 2010
Reviewed-by: ohair, art, ccheung, dcubed

duke@435	1	/*
duke@435	2	* Copyright 1997-2000 Sun Microsystems, Inc. All Rights Reserved.
duke@435	3	* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
duke@435	4	*
duke@435	5	* This code is free software; you can redistribute it and/or modify it
duke@435	6	* under the terms of the GNU General Public License version 2 only, as
duke@435	7	* published by the Free Software Foundation.
duke@435	8	*
duke@435	9	* This code is distributed in the hope that it will be useful, but WITHOUT
duke@435	10	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
duke@435	11	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
duke@435	12	* version 2 for more details (a copy is included in the LICENSE file that
duke@435	13	* accompanied this code).
duke@435	14	*
duke@435	15	* You should have received a copy of the GNU General Public License version
duke@435	16	* 2 along with this work; if not, write to the Free Software Foundation,
duke@435	17	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
duke@435	18	*
duke@435	19	* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
duke@435	20	* CA 95054 USA or visit www.sun.com if you need additional information or
duke@435	21	* have any questions.
duke@435	22	*
duke@435	23	*/
duke@435	24
duke@435	25	// Data structure for holding monitors for one activation during
duke@435	26	// deoptimization.
duke@435	27
duke@435	28	class MonitorChunk: public CHeapObj {
duke@435	29	private:
duke@435	30	int _number_of_monitors;
duke@435	31	BasicObjectLock* _monitors;
duke@435	32	BasicObjectLock* monitors() const { return _monitors; }
duke@435	33	MonitorChunk* _next;
duke@435	34	public:
duke@435	35	// Constructor
duke@435	36	MonitorChunk(int number_on_monitors);
duke@435	37	~MonitorChunk();
duke@435	38
duke@435	39	// link operations
duke@435	40	MonitorChunk* next() const { return _next; }
duke@435	41	void set_next(MonitorChunk* next) { _next = next; }
duke@435	42
duke@435	43	// Tells whether the monitor chunk is linked into the JavaThread
duke@435	44	bool is_linked() const { return next() != NULL; }
duke@435	45
duke@435	46	// Returns the number of monitors
duke@435	47	int number_of_monitors() const { return _number_of_monitors; }
duke@435	48
duke@435	49	// Returns the index'th monitor
duke@435	50	BasicObjectLock* at(int index) { assert(index >= 0 && index < number_of_monitors(), "out of bounds check"); return &monitors()[index]; }
duke@435	51
duke@435	52
duke@435	53	// Memory management
duke@435	54	void oops_do(OopClosure* f);
duke@435	55
duke@435	56	// Tells whether the addr point into the monitors.
duke@435	57	bool contains(void* addr) const { return (addr >= (void*) monitors()) && (addr < (void*) (monitors() + number_of_monitors())); }
duke@435	58	};