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1 /* |
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2 * Copyright (c) 2006-2010 Nokia Corporation and/or its subsidiary(-ies). |
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3 * All rights reserved. |
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4 * This component and the accompanying materials are made available |
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5 * under the terms of the License "Eclipse Public License v1.0" |
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6 * which accompanies this distribution, and is available |
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7 * at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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8 * |
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9 * Initial Contributors: |
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10 * Nokia Corporation - initial contribution. |
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11 * |
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12 * Contributors: |
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13 * |
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14 * Description: Statemachine for handling traffic stream deletion from network side. |
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15 * |
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16 */ |
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17 |
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18 /* |
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19 * %version: 9 % |
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20 */ |
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21 |
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22 #include "core_operation_handle_delete_ts.h" |
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23 #include "core_operation_update_tx_rate_policies.h" |
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24 #include "core_tools.h" |
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25 #include "core_server.h" |
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26 #include "core_traffic_stream_list_iter.h" |
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27 #include "core_virtual_traffic_stream_list_iter.h" |
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28 #include "am_debug.h" |
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29 |
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30 // ======== MEMBER FUNCTIONS ======== |
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31 |
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32 // --------------------------------------------------------------------------- |
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33 // --------------------------------------------------------------------------- |
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34 // |
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35 core_operation_handle_delete_ts_c::core_operation_handle_delete_ts_c( |
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36 u32_t request_id, |
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37 core_server_c* server, |
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38 abs_core_driverif_c* drivers, |
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39 abs_core_server_callback_c* adaptation, |
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40 u8_t tid ) : |
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41 core_operation_base_c( core_operation_handle_delete_ts, request_id, server, drivers, adaptation, |
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42 core_base_flag_none ), |
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43 tid_m( tid ) |
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44 { |
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45 DEBUG( "core_operation_handle_delete_ts_c::core_operation_handle_delete_ts_c()" ); |
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46 } |
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47 |
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48 // --------------------------------------------------------------------------- |
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49 // --------------------------------------------------------------------------- |
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50 // |
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51 core_operation_handle_delete_ts_c::~core_operation_handle_delete_ts_c() |
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52 { |
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53 DEBUG( "core_operation_handle_delete_ts_c::~core_operation_handle_delete_ts_c()" ); |
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54 } |
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55 |
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56 // --------------------------------------------------------------------------- |
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57 // --------------------------------------------------------------------------- |
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58 // |
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59 core_error_e core_operation_handle_delete_ts_c::next_state() |
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60 { |
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61 DEBUG( "core_operation_handle_delete_ts_c::next_state()" ); |
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62 |
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63 switch ( operation_state_m ) |
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64 { |
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65 case core_state_init: |
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66 { |
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67 operation_state_m = core_base_state_parameters_set; |
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68 |
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69 if ( !server_m->get_core_settings().is_connected() ) |
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70 { |
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71 DEBUG( "core_operation_handle_delete_ts_c::next_state() - not connected, nothing to do" ); |
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72 |
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73 return core_error_general; |
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74 } |
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75 |
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76 DEBUG1( "core_operation_handle_delete_ts_c::next_state() - network has requested deletion of TID %u", |
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77 tid_m ); |
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78 |
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79 core_traffic_stream_list_c& ts_list( |
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80 server_m->get_connection_data()->traffic_stream_list() ); |
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81 core_virtual_traffic_stream_list_c& virtual_ts_list( |
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82 server_m->get_connection_data()->virtual_traffic_stream_list() ); |
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83 core_traffic_stream_list_iter_c ts_iter( ts_list ); |
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84 |
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85 virtual_ts_list.print_contents(); |
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86 ts_list.print_contents(); |
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87 |
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88 core_traffic_stream_c* stream = NULL; |
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89 core_traffic_stream_c* iter = ts_iter.first(); |
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90 while( iter ) |
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91 { |
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92 if ( iter->tid() == tid_m ) |
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93 { |
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94 stream = iter; |
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95 |
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96 iter = NULL; |
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97 } |
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98 else |
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99 { |
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100 iter = ts_iter.next(); |
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101 } |
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102 } |
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103 |
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104 if ( !stream ) |
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105 { |
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106 DEBUG1( "core_operation_handle_delete_ts_c::next_state() - no traffic stream with TID %u found", |
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107 tid_m ); |
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108 |
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109 return core_error_not_found; |
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110 } |
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111 |
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112 u8_t user_priority = stream->user_priority(); |
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113 core_traffic_stream_direction_e direction = stream->direction(); |
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114 |
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115 /** |
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116 * Send a status update to all affected virtual traffic streams. |
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117 */ |
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118 set_virtual_traffic_stream_inactive_by_tid( |
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119 tid_m, |
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120 core_traffic_stream_status_inactive_deleted_by_ap ); |
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121 |
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122 /** |
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123 * Delete the actual traffic stream. |
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124 */ |
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125 server_m->get_wpx_adaptation_instance().handle_ts_delete( |
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126 tid_m, user_priority ); |
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127 ts_iter.remove(); |
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128 |
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129 if( direction == core_traffic_stream_direction_uplink || |
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130 direction == core_traffic_stream_direction_bidirectional ) |
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131 { |
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132 server_m->get_connection_data()->set_ac_traffic_status( |
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133 core_tools_c::convert_user_priority_to_ac( user_priority ), |
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134 core_access_class_traffic_status_not_admitted ); |
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135 |
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136 /** |
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137 * Send an indication to notify clients that this access class |
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138 * is no longer admitted. |
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139 * |
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140 * We don't have to the check the ACM bits since the traffic |
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141 * stream wouldn't exist if the AP didn't require admission |
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142 * control. |
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143 */ |
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144 DEBUG( "core_operation_handle_delete_ts_c::next_state() - traffic no longer admitted on this AC, notifying clients" ); |
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145 |
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146 u8_t buf[5]; |
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147 buf[0] = static_cast<u8_t>( |
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148 core_tools_c::convert_user_priority_to_ac( user_priority ) ); |
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149 buf[1] = static_cast<u8_t>( |
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150 core_access_class_traffic_status_not_admitted ); |
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151 adaptation_m->notify( |
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152 core_notification_ac_traffic_status_changed, |
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153 sizeof( buf ), |
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154 buf ); |
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155 |
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156 /** |
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157 * Reset TX queue parameters back to default values. |
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158 */ |
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159 DEBUG( "core_operation_delete_ts_c::next_state() - resetting tx queue parameters" ); |
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160 |
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161 drivers_m->set_tx_queue_parameters( |
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162 request_id_m, |
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163 core_tools_c::convert_user_priority_to_ac( user_priority ), |
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164 0, |
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165 server_m->get_device_settings().max_tx_msdu_life_time ); |
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166 } |
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167 else |
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168 { |
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169 /** |
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170 * Since TX queue parameters apply only to uplink, there is nothing |
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171 * more to do on downlink streams. |
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172 */ |
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173 return core_error_ok; |
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174 } |
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175 |
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176 break; |
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177 } |
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178 case core_base_state_parameters_set: |
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179 { |
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180 DEBUG( "core_operation_handle_delete_ts_c::next_state() - tx queue parameters reset" ); |
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181 |
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182 return core_error_ok; |
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183 } |
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184 default: |
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185 { |
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186 ASSERT( false_t ); |
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187 } |
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188 } |
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189 |
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190 return core_error_request_pending; |
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191 } |
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192 |
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193 void core_operation_handle_delete_ts_c::set_virtual_traffic_stream_inactive_by_tid( |
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194 u8_t tid, |
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195 core_traffic_stream_status_e stream_status ) |
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196 { |
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197 DEBUG( "core_operation_handle_delete_ts_c::set_virtual_traffic_stream_inactive_by_tid()" ); |
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198 |
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199 core_virtual_traffic_stream_list_c& virtual_ts_list( |
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200 server_m->get_connection_data()->virtual_traffic_stream_list() ); |
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201 core_virtual_traffic_stream_list_iter_c virtual_ts_iter( virtual_ts_list ); |
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202 |
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203 core_virtual_traffic_stream_c* virtual_iter = virtual_ts_iter.first(); |
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204 while( virtual_iter ) |
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205 { |
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206 if( virtual_iter->tid() == tid ) |
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207 { |
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208 u32_t id( virtual_iter->id() ); |
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209 |
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210 /** |
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211 * The virtual traffic stream is no longer mapped to any actual |
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212 * traffic stream. |
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213 */ |
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214 virtual_iter->set_tid( |
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215 TRAFFIC_STREAM_TID_NONE ); |
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216 virtual_iter->set_status( |
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217 stream_status ); |
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218 |
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219 DEBUG1( "core_operation_handle_delete_ts_c::set_virtual_traffic_stream_inactive_by_tid() - virtual traffic stream with ID %u is now inactive", |
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220 id ); |
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221 |
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222 u8_t buf[5]; |
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223 core_tools_c::copy( |
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224 &buf[0], |
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225 reinterpret_cast<u8_t*>( &id ), |
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226 sizeof( u32_t ) ); |
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227 buf[4] = static_cast<u8_t>( stream_status ); |
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228 |
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229 adaptation_m->notify( |
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230 core_notification_ts_status_changed, |
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231 sizeof( buf ), |
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232 buf ); |
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233 } |
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234 |
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235 virtual_iter = virtual_ts_iter.next(); |
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236 } |
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237 } |