Mercurial > octave
annotate liboctave/util/oct-mutex.h @ 22865:89756f2f085b
use c++11 style for deleting default copy constructor and assignment operator
* octave-gui.h, resource-manager.h, shortcut-manager.h,
base-text-renderer.h, c-file-ptr-stream.h, dynamic-ld.cc,
dynamic-ld.h, event-queue.h, ft-text-renderer.cc, gl-render.cc,
gl-render.h, graphics.cc, graphics.in.h, interpreter.h, mex.cc,
mxarray.in.h, oct-fstrm.h, oct-iostrm.h, oct-prcstrm.h, oct-procbuf.h,
oct-stdstrm.h, oct-stream.cc, oct-stream.h, oct-strstrm.h,
octave-link.h, pager.h, profiler.h, sighandlers.cc, symtab.h,
text-renderer.h, zfstream.h, __init_fltk__.cc, ov-builtin.h,
ov-dld-fcn.h, ov-fcn.h, ov-mex-fcn.h, ov-typeinfo.h, ov-usr-fcn.h,
octave.h, lex.h, parse.h, pt-arg-list.h, pt-array-list.h, pt-assign.h,
pt-binop.h, pt-bp.h, pt-cbinop.h, pt-cell.h, pt-check.h,
pt-classdef.h, pt-cmd.h, pt-colon.h, pt-const.h, pt-decl.h, pt-eval.h,
pt-except.h, pt-exp.h, pt-fcn-handle.h, pt-funcall.h, pt-id.h,
pt-idx.h, pt-jump.h, pt-loop.h, pt-mat.h, pt-misc.h, pt-pr-code.h,
pt-select.h, pt-stmt.h, pt-unop.h, pt-walk.h, pt.h, token.h, Array.cc,
idx-vector.h, oct-fftw.h, sparse-chol.cc, sparse-qr.cc, file-ops.h,
mach-info.h, oct-env.h, action-container.h, cmd-edit.cc, cmd-edit.h,
cmd-hist.h, oct-locbuf.h, oct-mutex.h, oct-shlib.cc, oct-sort.h,
pathsearch.h, singleton-cleanup.h, unwind-prot.h, url-transfer.cc,
url-transfer.h:
Use C++11 style "= delete" declaration to declare copy constructors
and assignment operators for classes that should not be copied.
author | John W. Eaton <jwe@octave.org> |
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date | Mon, 05 Dec 2016 22:59:37 -0500 |
parents | 3a2b891d0b33 |
children | 87e3163f6c87 |
rev | line source |
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2 | |
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3 Copyright (C) 2008-2016 Michael Goffioul |
7934 | 4 |
5 This file is part of Octave. | |
6 | |
7 Octave is free software; you can redistribute it and/or modify it | |
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8 under the terms of the GNU General Public License as published by |
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9 the Free Software Foundation; either version 3 of the License, or |
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10 (at your option) any later version. |
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12 Octave is distributed in the hope that it will be useful, but |
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13 WITHOUT ANY WARRANTY; without even the implied warranty of |
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14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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15 GNU General Public License for more details. |
7934 | 16 |
17 You should have received a copy of the GNU General Public License | |
18 along with Octave; see the file COPYING. If not, see | |
19 <http://www.gnu.org/licenses/>. | |
20 | |
21 */ | |
22 | |
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23 #if ! defined (octave_oct_mutex_h) |
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24 #define octave_oct_mutex_h 1 |
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26 #include "octave-config.h" |
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27 |
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28 #include "oct-refcount.h" |
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29 |
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30 class octave_mutex; |
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31 |
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32 class |
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33 octave_base_mutex |
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34 { |
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35 public: |
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36 friend class octave_mutex; |
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37 |
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38 octave_base_mutex (void) : count (1) { } |
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39 |
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40 virtual ~octave_base_mutex (void) { } |
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41 |
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42 virtual void lock (void); |
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43 |
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44 virtual void unlock (void); |
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45 |
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46 virtual bool try_lock (void); |
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47 |
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48 private: |
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49 octave_refcount<int> count; |
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50 }; |
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51 |
7934 | 52 class |
53 OCTAVE_API | |
54 octave_mutex | |
55 { | |
56 public: | |
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57 octave_mutex (void); |
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58 |
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59 octave_mutex (const octave_mutex& m) |
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60 : rep (m.rep) |
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61 { |
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62 rep->count++; |
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63 } |
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65 ~octave_mutex (void) |
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66 { |
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67 if (--rep->count == 0) |
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68 delete rep; |
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69 } |
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70 |
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71 octave_mutex& operator = (const octave_mutex& m) |
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72 { |
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73 if (rep != m.rep) |
7934 | 74 { |
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75 if (--rep->count == 0) |
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76 delete rep; |
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77 |
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78 rep = m.rep; |
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79 rep->count++; |
7934 | 80 } |
81 | |
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82 return *this; |
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83 } |
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85 void lock (void) |
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86 { |
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87 rep->lock (); |
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88 } |
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90 void unlock (void) |
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91 { |
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92 rep->unlock (); |
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93 } |
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95 bool try_lock (void) |
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96 { |
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97 return rep->try_lock (); |
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98 } |
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99 |
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101 octave_base_mutex *rep; |
7934 | 102 }; |
103 | |
104 class | |
105 octave_autolock | |
106 { | |
107 public: | |
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108 octave_autolock (const octave_mutex& m, bool block = true) |
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109 : mutex (m), lock_result (false) |
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110 { |
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111 if (block) |
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112 { |
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113 mutex.lock (); |
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114 lock_result = true; |
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115 } |
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116 else |
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117 lock_result = mutex.try_lock (); |
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118 } |
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120 ~octave_autolock (void) | |
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121 { |
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122 if (lock_result) |
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123 mutex.unlock (); |
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124 } |
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126 bool ok (void) const { return lock_result; } |
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127 |
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128 operator bool (void) const { return ok (); } |
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129 |
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131 |
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132 // No copying. |
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133 |
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134 octave_autolock (const octave_autolock&) = delete; |
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135 |
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136 octave_autolock& operator = (const octave_autolock&) = delete; |
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138 private: | |
139 octave_mutex mutex; | |
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140 bool lock_result; |
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141 }; |
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143 class |
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144 OCTAVE_API |
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145 octave_thread |
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146 { |
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147 public: |
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148 static void init (void); |
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149 |
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150 static bool is_octave_thread (void); |
7934 | 151 }; |
152 | |
153 #endif | |
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154 |