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1 //========================================================================== |
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2 // |
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3 // mbox.cxx |
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4 // |
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5 // Mbox mbox template class implementation |
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6 // |
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7 //========================================================================== |
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8 //####COPYRIGHTBEGIN#### |
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9 // |
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10 // ------------------------------------------- |
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11 // The contents of this file are subject to the Cygnus eCos Public License |
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12 // Version 1.0 (the "License"); you may not use this file except in |
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13 // compliance with the License. You may obtain a copy of the License at |
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14 // http://sourceware.cygnus.com/ecos |
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15 // |
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16 // Software distributed under the License is distributed on an "AS IS" |
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17 // basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the |
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18 // License for the specific language governing rights and limitations under |
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19 // the License. |
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20 // |
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21 // The Original Code is eCos - Embedded Cygnus Operating System, released |
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22 // September 30, 1998. |
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23 // |
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24 // The Initial Developer of the Original Code is Cygnus. Portions created |
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25 // by Cygnus are Copyright (C) 1998,1999 Cygnus Solutions. All Rights Reserved. |
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26 // ------------------------------------------- |
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27 // |
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28 //####COPYRIGHTEND#### |
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29 //========================================================================== |
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30 //#####DESCRIPTIONBEGIN#### |
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31 // |
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32 // Author(s): hmt |
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33 // Contributors: hmt |
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34 // Date: 1998-02-11 |
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35 // Purpose: Mbox implementation |
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36 // Description: This file contains the implementations of the mbox class |
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37 // |
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38 //####DESCRIPTIONEND#### |
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39 // |
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40 //========================================================================== |
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41 |
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42 #include <pkgconf/kernel.h> |
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43 |
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44 #include <cyg/kernel/ktypes.h> // base kernel types |
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45 #include <cyg/infra/cyg_trac.h> // tracing macros |
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46 #include <cyg/infra/cyg_ass.h> // assertion macros |
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47 #include <cyg/kernel/instrmnt.h> // instrumentation |
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48 |
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49 #include <cyg/kernel/thread.inl> // Cyg_Thread inlines |
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50 |
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51 #include <cyg/kernel/mbox.hxx> // our own header |
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52 |
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53 #ifndef CYGIMP_MBOXT_INLINE // force inlining |
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54 #define CYGIMP_MBOXT_INLINE // of implementation |
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55 #endif |
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56 |
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57 #ifdef CYGIMP_MBOX_USE_MBOXT_PLAIN |
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58 #include <cyg/kernel/mboxt.inl> // mbox template implementation |
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59 #else |
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60 #include <cyg/kernel/mboxt2.inl> // mbox template implementation |
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61 #endif |
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62 |
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63 // ------------------------------------------------------------------------- |
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64 // This module exists to cause exactly one instance of these functions to |
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65 // exist; this is just like a vanilla class, except we use the template |
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66 // class to acquire an implementation. The template functions are inlined |
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67 // in each of these methods. |
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68 |
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69 |
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70 // ------------------------------------------------------------------------- |
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71 // Constructor |
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72 |
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73 Cyg_Mbox::Cyg_Mbox() |
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74 { |
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75 } |
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76 |
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77 // ------------------------------------------------------------------------- |
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78 // Destructor |
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79 |
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80 Cyg_Mbox::~Cyg_Mbox() |
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81 { |
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82 } |
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83 |
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84 // ------------------------------------------------------------------------- |
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85 // debugging/assert function |
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86 |
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87 #ifdef CYGDBG_USE_ASSERTS |
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88 cyg_bool |
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89 Cyg_Mbox::check_this(cyg_assert_class_zeal zeal) const |
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90 { |
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91 return m.check_this(zeal); |
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92 } |
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93 #endif |
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94 |
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95 // ------------------------------------------------------------------------- |
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96 // now the members themselves: |
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97 |
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98 void * |
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99 Cyg_Mbox::get() |
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100 { |
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101 void * p; |
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102 if ( ! m.get( p ) ) |
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103 return NULL; |
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104 return p; |
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105 } |
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106 |
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107 #ifdef CYGFUN_KERNEL_THREADS_TIMER |
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108 void * |
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109 Cyg_Mbox::get( cyg_tick_count timeout ) |
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110 { |
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111 void * p; |
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112 if ( ! m.get( p, timeout ) ) |
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113 return NULL; |
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114 return p; |
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115 } |
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116 #endif |
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117 |
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118 void * |
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119 Cyg_Mbox::tryget() |
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120 { |
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121 void * p; |
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122 if ( ! m.tryget( p ) ) |
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123 return NULL; |
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124 return p; |
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125 } |
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126 |
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127 #ifdef CYGMFN_KERNEL_SYNCH_MBOXT_PUT_CAN_WAIT |
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128 cyg_bool |
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129 Cyg_Mbox::put( void *item ) |
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130 { |
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131 return m.put( item ); |
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132 } |
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133 |
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134 #ifdef CYGFUN_KERNEL_THREADS_TIMER |
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135 cyg_bool |
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136 Cyg_Mbox::put( void *item, cyg_tick_count timeout ) |
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137 { |
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138 return m.put( item, timeout ); |
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139 } |
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140 #endif |
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141 #endif // CYGMFN_KERNEL_SYNCH_MBOXT_PUT_CAN_WAIT |
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142 |
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143 cyg_bool |
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144 Cyg_Mbox::tryput( void *item ) |
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145 { |
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146 return m.tryput( item ); |
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147 } |
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148 |
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149 void * |
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150 Cyg_Mbox::peek_item() // Get next item to be returned |
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151 { |
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152 void *p; |
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153 if ( ! m.peek_item( p ) ) |
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154 return NULL; |
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155 return p; |
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156 } |
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157 |
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158 // ------------------------------------------------------------------------- |
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159 // EOF mbox.cxx |
