Mercurial > octave-nkf
view liboctave/util/oct-refcount.h @ 19632:76478d2da117
unconditionally disable the octave_allocator class
* configure.ac: Delete the --enable-octave-allocator option.
* oct-alloc.h: Delete octave_allocator class. Warn if file is
included. Unconditionally define macros to be empty.
* NEWS: Make note of these changes.
* oct-alloc.cc: Delete.
* liboctave/util/module.mk (UTIL_SRC): Remove it from the list.
* make_int.cc, Cell.h, oct-obj.cc, oct-obj.h, audiodevinfo.cc,
ov-base-int.h, ov-base-scalar.h, ov-bool-mat.cc, ov-bool-mat.h,
ov-bool-sparse.cc, ov-bool-sparse.h, ov-bool.cc, ov-bool.h,
ov-builtin.cc, ov-builtin.h, ov-cell.cc, ov-cell.h, ov-ch-mat.h,
ov-class.cc, ov-class.h, ov-classdef.cc, ov-classdef.h, ov-complex.cc,
ov-complex.h, ov-cs-list.cc, ov-cs-list.h, ov-cx-diag.cc,
ov-cx-diag.h, ov-cx-mat.cc, ov-cx-mat.h, ov-cx-sparse.cc,
ov-cx-sparse.h, ov-dld-fcn.cc, ov-dld-fcn.h, ov-fcn-handle.cc,
ov-fcn-handle.h, ov-fcn-inline.cc, ov-fcn-inline.h, ov-fcn.cc,
ov-fcn.h, ov-float.cc, ov-float.h, ov-flt-complex.cc,
ov-flt-complex.h, ov-flt-cx-diag.cc, ov-flt-cx-diag.h,
ov-flt-cx-mat.cc, ov-flt-cx-mat.h, ov-flt-re-diag.cc,
ov-flt-re-diag.h, ov-flt-re-mat.cc, ov-flt-re-mat.h, ov-int16.cc,
ov-int32.cc, ov-int64.cc, ov-int8.cc, ov-intx.h, ov-java.cc,
ov-java.h, ov-mex-fcn.cc, ov-mex-fcn.h, ov-perm.cc, ov-perm.h,
ov-range.cc, ov-range.h, ov-re-diag.cc, ov-re-diag.h, ov-re-mat.cc,
ov-re-mat.h, ov-re-sparse.cc, ov-re-sparse.h, ov-scalar.cc,
ov-scalar.h, ov-str-mat.cc, ov-str-mat.h, ov-struct.cc, ov-struct.h,
ov-uint16.cc, ov-uint32.cc, ov-uint64.cc, ov-uint8.cc, ov-usr-fcn.cc,
ov-usr-fcn.h, ov.cc, ov.h, pt-const.cc, pt-const.h, idx-vector.cc,
idx-vector.h: Delete uses of oct-alloc.h and OCTAVE_ALLOCATOR macros.
author | John W. Eaton <jwe@octave.org> |
---|---|
date | Tue, 20 Jan 2015 13:43:29 -0500 |
parents | ebb3ef964372 |
children | 4197fc428c7d |
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/* Copyright (C) 2012-2013 Jaroslav Hajek This file is part of Octave. Octave is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 3 of the License, or (at your option) any later version. Octave 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 for more details. You should have received a copy of the GNU General Public License along with Octave; see the file COPYING. If not, see <http://www.gnu.org/licenses/>. */ #if !defined (octave_oct_refcount_h) #define octave_oct_refcount_h 1 #ifndef OCTAVE_CONFIG_INCLUDED # error "The file <octave/config.h> must be included before oct-refcount.h." #endif #if defined (USE_ATOMIC_REFCOUNT) && (defined (_MSC_VER) || defined (__GNUC__)) # if defined (_MSC_VER) # include <intrin.h> # define OCTREFCOUNT_ATOMIC_INCREMENT(x) _InterlockedIncrement((long*)x) # define OCTREFCOUNT_ATOMIC_DECREMENT(x) _InterlockedDecrement((long*)x) # define OCTREFCOUNT_ATOMIC_INCREMENT_POST(x) _InterlockedExchangeAdd((long*)x, 1) # define OCTREFCOUNT_ATOMIC_DECREMENT_POST(x) _InterlockedExchangeAdd((long*)x, -1) # elif defined (__GNUC__) # define OCTREFCOUNT_ATOMIC_INCREMENT(x) __sync_add_and_fetch(x, 1) # define OCTREFCOUNT_ATOMIC_DECREMENT(x) __sync_add_and_fetch(x, -1) # define OCTREFCOUNT_ATOMIC_INCREMENT_POST(x) __sync_fetch_and_add(x, 1) # define OCTREFCOUNT_ATOMIC_DECREMENT_POST(x) __sync_fetch_and_add(x, -1) # endif #else // Generic non-locking versions # define OCTREFCOUNT_ATOMIC_INCREMENT(x) ++(*(x)) # define OCTREFCOUNT_ATOMIC_DECREMENT(x) --(*(x)) # define OCTREFCOUNT_ATOMIC_INCREMENT_POST(x) (*(x))++ # define OCTREFCOUNT_ATOMIC_DECREMENT_POST(x) (*(x))-- #endif // Encapsulates a reference counter. template <class T> class octave_refcount { public: typedef T count_type; octave_refcount(count_type initial_count) : count(initial_count) { } // Increment/Decrement. int is postfix. count_type operator++(void) { return OCTREFCOUNT_ATOMIC_INCREMENT (&count); } count_type operator++(int) { return OCTREFCOUNT_ATOMIC_INCREMENT_POST (&count); } count_type operator--(void) { return OCTREFCOUNT_ATOMIC_DECREMENT (&count); } count_type operator--(int) { return OCTREFCOUNT_ATOMIC_DECREMENT_POST (&count); } operator count_type (void) const { return static_cast<count_type const volatile&> (count); } count_type *get (void) { return &count; } private: count_type count; }; #endif