FreeCalypso > hg > fc-magnetite

annotate src/gpf3/frame/vsi_sem.c @ 597:f18b29e27be5

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First attempt at MCSI voice path automatic switching The function is implemented at the ACI level in both aci2 and aci3, successfully avoids triggering the DSP bug on the first call, but the shutdown of MCSI upon call completion is not working properly yet in either version.
author Mychaela Falconia <falcon@freecalypso.org>
date Wed, 27 Mar 2019 22:18:35 +0000
parents c41a534f33c6
children
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2
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1 /*
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2 +------------------------------------------------------------------------------
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3 | File: vsi_sem.c
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4 +------------------------------------------------------------------------------
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5 | Copyright 2002 Texas Instruments Berlin, AG
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6 | All rights reserved.
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7 |
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8 | This file is confidential and a trade secret of Texas
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9 | Instruments Berlin, AG
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10 | The receipt of or possession of this file does not convey
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11 | any rights to reproduce or disclose its contents or to
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12 | manufacture, use, or sell anything it may describe, in
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13 | whole, or in part, without the specific written consent of
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14 | Texas Instruments Berlin, AG.
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15 +-----------------------------------------------------------------------------
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16 | Purpose : This Module defines the virtual system interface part
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17 | for the semaphore handling.
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18 +-----------------------------------------------------------------------------
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19 */
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20
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21 #ifndef __VSI_SEM_C__
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22 #define __VSI_SEM_C__
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23 #endif
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24
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25 /*==== INCLUDES ===================================================*/
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26
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27 #include "typedefs.h"
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28 #include "vsi.h"
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29 #include "os.h"
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30 #include "frm_defs.h"
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31 #include "frm_types.h"
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32 #include "frm_glob.h"
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33
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34 /*==== TYPES ======================================================*/
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35
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36
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37 /*==== CONSTANTS ==================================================*/
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39
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40 /*==== EXTERNALS ==================================================*/
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41 /* -------------- S H A R E D - BEGIN ---------------- */
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42 #ifdef _TOOLS_
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43 #pragma data_seg("FRAME_SHARED")
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44 #endif
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45
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46 /*==== VARIABLES ==================================================*/
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47
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48
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49 #ifdef _TOOLS_
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50 #pragma data_seg()
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51 #endif
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52 /* -------------- S H A R E D - END ---------------- */
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53
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54 /*==== FUNCTIONS ==================================================*/
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55
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56
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57 #ifndef RUN_INT_RAM
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58 /*
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59 +--------------------------------------------------------------------+
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60 | PROJECT : GSM-Frame (8415) MODULE : VSI_SEM |
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61 | STATE : code ROUTINE : vsi_s_open |
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62 +--------------------------------------------------------------------+
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63
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64 PURPOSE : opens a semaphore, creates if not exist
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65
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66 */
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67
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68 T_HANDLE vsi_s_open (T_HANDLE Caller, char *Name, USHORT Count)
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69 {
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70 OS_HANDLE SemHandle;
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71
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72 /*
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73 * if semaphore already exists, return handle
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74 */
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75 if ( os_OpenSemaphore ( Caller, Name, &SemHandle ) != OS_ERROR )
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76 return SemHandle;
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77
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78 /*
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79 * if semaphore not exists, create
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80 */
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81 if ( os_CreateSemaphore ( Caller, Name, Count, &SemHandle, pf_TaskTable[Caller].MemPoolHandle ) != OS_ERROR )
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82 return SemHandle;
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83 else
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84 vsi_o_assert( Caller, OS_SYST_ERR_MAX_SEMA, __FILE__, __LINE__,
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85 "Number of created semaphores > MAX_SEMAPHORES" );
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86
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87 /*
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88 * if semaphore cannot be created, return VSI_ERROR
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89 */
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90 return VSI_ERROR;
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91 }
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92 #endif
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93
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94 #ifndef RUN_INT_RAM
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95 /*
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96 +--------------------------------------------------------------------+
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97 | PROJECT : GSM-Frame (8415) MODULE : VSI_SEM |
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98 | STATE : code ROUTINE : vsi_s_close |
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99 +--------------------------------------------------------------------+
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100
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101 PURPOSE : closes a semaphore
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102
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103 */
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104
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105 int vsi_s_close (T_HANDLE Caller, T_HANDLE SemHandle)
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106 {
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107
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108 if ( os_CloseSemaphore ( Caller, SemHandle ) != OS_ERROR )
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109 return VSI_OK;
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110
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111 return VSI_ERROR;
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112 }
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113 #endif
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114
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115 #ifndef RUN_FLASH
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116 /*
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117 +--------------------------------------------------------------------+
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118 | PROJECT : GSM-Frame (8415) MODULE : VSI_SEM |
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119 | STATE : code ROUTINE : vsi_s_get |
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120 +--------------------------------------------------------------------+
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121
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122 PURPOSE : obtains a semaphore
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123
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124 */
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125
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126 int vsi_s_get (T_HANDLE Caller, T_HANDLE SemHandle)
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127 {
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128 LONG Status;
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129
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130 Status = os_ObtainSemaphore ( Caller, SemHandle, OS_SUSPEND );
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131 if ( Status == OS_OK || Status == OS_WAITED )
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132 return VSI_OK;
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133
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134 return VSI_ERROR;
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135 }
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136 #endif
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137
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138 #ifndef RUN_FLASH
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139 /*
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140 +--------------------------------------------------------------------+
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141 | PROJECT : GSM-Frame (8415) MODULE : VSI_SEM |
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142 | STATE : code ROUTINE : vsi_s_release |
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143 +--------------------------------------------------------------------+
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144
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145 PURPOSE : releases a semaphore
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146
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147 */
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148
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149 int vsi_s_release (T_HANDLE Caller, T_HANDLE SemHandle)
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150 {
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151
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152 if ( os_ReleaseSemaphore ( Caller, SemHandle ) != OS_ERROR )
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153 return VSI_OK;
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154
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155 return VSI_ERROR;
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156 }
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157 #endif
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158
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159 #ifndef RUN_INT_RAM
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160 /*
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parents:
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161 +--------------------------------------------------------------------+
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162 | PROJECT : GSM-Frame (8415) MODULE : VSI_SEM |
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163 | STATE : code ROUTINE : vsi_s_status |
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parents:
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164 +--------------------------------------------------------------------+
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parents:
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165
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166 PURPOSE : request the current count of a semaphore
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parents:
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167
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parents:
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168 */
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parents:
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169
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170 int vsi_s_status (T_HANDLE Caller, T_HANDLE SemHandle, USHORT *Count )
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parents:
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171 {
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parents:
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172
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173 if ( os_QuerySemaphore ( Caller, SemHandle, Count ) != OS_ERROR )
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parents:
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174 return VSI_OK;
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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175
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parents:
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176 return VSI_ERROR;
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parents:
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177 }
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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178 #endif
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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179