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Do not use "error" in octave_base_mutex class
author John W. Eaton <jwe@octave.org>
date Mon, 21 Jul 2008 15:23:29 -0400
parents 2c0a0edae596
children b935bbfab7c4
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1 /*
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2
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3 Copyright (C) 2008 Michael Goffioul
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4
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5 This file is part of Octave.
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6
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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 the
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9 Free Software Foundation; either version 3 of the License, or (at your
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10 option) any later version.
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11
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12 Octave is distributed in the hope that it will be useful, but WITHOUT
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13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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15 for more details.
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16
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17 You should have received a copy of the GNU General Public License
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18 along with Octave; see the file COPYING. If not, see
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19 <http://www.gnu.org/licenses/>.
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20
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21 */
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22
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23 #ifdef HAVE_CONFIG_H
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24 #include <config.h>
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25 #endif
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26
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27 #include "oct-mutex.h"
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28 #include "lo-error.h"
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29
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30 #if defined (HAVE_PTHREAD_H)
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31 #include <pthread.h>
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32 #endif
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33
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34 #if defined (__WIN32__) && ! defined (__CYGWIN__)
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35 #include <windows.h>
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36 #endif
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37
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38 void
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39 octave_base_mutex::lock (void)
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40 {
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41 (*current_liboctave_error_handler) ("mutex not supported on this platform");
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42 }
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43
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44 void
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45 octave_base_mutex::unlock (void)
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46 {
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47 (*current_liboctave_error_handler) ("mutex not supported on this platform");
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48 }
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49
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50 #if defined (__WIN32__) && ! defined (__CYGWIN__)
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51
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52 class
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53 octave_w32_mutex : public octave_base_mutex
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54 {
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55 public:
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56 octave_w32_mutex (void)
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57 : octave_base_mutex ()
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58 {
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59 InitializeCriticalSection (&cs);
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60 }
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61
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62 ~octave_w32_mutex (void)
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63 {
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64 DeleteCriticalSection (&cs);
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65 }
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66
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67 void lock (void)
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68 {
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69 EnterCriticalSection (&cs);
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70 }
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71
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72 void unlock (void)
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73 {
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74 LeaveCriticalSection (&cs);
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75 }
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76
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77 private:
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78 CRITICAL_SECTION cs;
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79 };
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80
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81 #elif defined (HAVE_PTHREAD_H)
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82
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83 class
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84 octave_pthread_mutex : public octave_base_mutex
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85 {
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86 public:
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87 octave_pthread_mutex (void)
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88 : octave_base_mutex ()
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89 {
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90 pthread_mutexattr_t attr;
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91
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92 pthread_mutexattr_init (&attr);
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93 pthread_mutexattr_settype (&attr, PTHREAD_MUTEX_RECURSIVE);
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94 pthread_mutex_init (&pm, &attr);
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95 pthread_mutexattr_destroy (&attr);
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96 }
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97
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98 ~octave_pthread_mutex (void)
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99 {
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100 pthread_mutex_destroy (&pm);
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101 }
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102
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103 void lock (void)
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104 {
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105 pthread_mutex_lock (&pm);
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106 }
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107
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108 void unlock (void)
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109 {
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110 pthread_mutex_unlock (&pm);
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111 }
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112
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113 private:
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114 pthread_mutex_t pm;
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115 };
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116
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117 #endif
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118
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119 octave_mutex::octave_mutex (void)
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120 {
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121 #if defined (__WIN32__) && ! defined (__CYGWIN__)
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122 rep = new octave_w32_mutex ();
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123 #elif defined (HAVE_PTHREAD_H)
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124 rep = new octave_pthread_mutex ();
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125 #else
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126 rep = new octave_base_mutex ();
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127 #endif
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128 }