src/hotspot/share/gc/shared/specialized_oop_closures.hpp
author stefank
Mon, 07 May 2018 14:42:08 +0200
changeset 50034 01a88f825a84
parent 49982 9042ffe5b7fe
child 50035 af1923174c9b
permissions -rw-r--r--
8202641: Replace OOP_SINCE_SAVE_MARKS with templates Reviewed-by: eosterlund, sjohanss

/*
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 *
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 * 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).
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 * 2 along with this work; if not, write to the Free Software Foundation,
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#ifndef SHARE_VM_GC_SHARED_SPECIALIZED_OOP_CLOSURES_HPP
#define SHARE_VM_GC_SHARED_SPECIALIZED_OOP_CLOSURES_HPP

#include "utilities/macros.hpp"
#if INCLUDE_CMSGC
#include "gc/cms/cms_specialized_oop_closures.hpp"
#endif
#if INCLUDE_G1GC
#include "gc/g1/g1_specialized_oop_closures.hpp"
#endif
#if INCLUDE_SERIALGC
#include "gc/serial/serial_specialized_oop_closures.hpp"
#endif

// The following OopClosure types get specialized versions of
// "oop_oop_iterate" that invoke the closures' do_oop methods
// non-virtually, using a mechanism defined in this file.  Extend these
// macros in the obvious way to add specializations for new closures.

// Forward declarations.
class ExtendedOopClosure;
class NoHeaderExtendedOopClosure;
class OopsInGenClosure;

// This macro applies an argument macro to all OopClosures for which we
// want specialized bodies of "oop_oop_iterate".  The arguments to "f" are:
//   "f(closureType, non_virtual)"
// where "closureType" is the name of the particular subclass of ExtendedOopClosure,
// and "non_virtual" will be the string "_nv" if the closure type should
// have its "do_oop" method invoked non-virtually, or else the
// string "_v".  ("ExtendedOopClosure" itself will be the only class in the latter
// category.)

// This is split into several because of a Visual C++ 6.0 compiler bug
// where very long macros cause the compiler to crash

#define SPECIALIZED_OOP_OOP_ITERATE_CLOSURES_1(f)                 \
  f(NoHeaderExtendedOopClosure,_nv)                               \
  SERIALGC_ONLY(SPECIALIZED_OOP_OOP_ITERATE_CLOSURES_S(f))        \
     CMSGC_ONLY(SPECIALIZED_OOP_OOP_ITERATE_CLOSURES_P(f))

#define SPECIALIZED_OOP_OOP_ITERATE_CLOSURES_2(f)                 \
  SERIALGC_ONLY(SPECIALIZED_OOP_OOP_ITERATE_CLOSURES_MS(f))       \
     CMSGC_ONLY(SPECIALIZED_OOP_OOP_ITERATE_CLOSURES_CMS(f))      \
      G1GC_ONLY(SPECIALIZED_OOP_OOP_ITERATE_CLOSURES_G1(f))       \
      G1GC_ONLY(SPECIALIZED_OOP_OOP_ITERATE_CLOSURES_G1FULL(f))

// We separate these out, because sometime the general one has
// a different definition from the specialized ones, and sometimes it
// doesn't.

#define ALL_OOP_OOP_ITERATE_CLOSURES_1(f)                         \
  f(ExtendedOopClosure,_v)                                        \
  SPECIALIZED_OOP_OOP_ITERATE_CLOSURES_1(f)

#define ALL_OOP_OOP_ITERATE_CLOSURES_2(f)                         \
  SPECIALIZED_OOP_OOP_ITERATE_CLOSURES_2(f)

// This macro applies an argument macro to all OopClosures for which we
// want specialized bodies of a family of methods related to
// "par_oop_iterate".  The arguments to f are the same as above.
// The "root_class" is the most general class to define; this may be
// "OopClosure" in some applications and "OopsInGenClosure" in others.


#define ALL_PAR_OOP_ITERATE_CLOSURES(f)                           \
  f(ExtendedOopClosure,_v)                                        \
  CMSGC_ONLY(SPECIALIZED_PAR_OOP_ITERATE_CLOSURES(f))

#endif // SHARE_VM_GC_SHARED_SPECIALIZED_OOP_CLOSURES_HPP