Mercurial > projects > package-update-indicator

annotate pui-get-updates.c @ 32:b9c65915cc54

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Reduce delay before checking for updates after an "updates-changed" signal
author Guido Berhoerster <guido+pui@berhoerster.name>
date Thu, 29 Aug 2019 17:41:06 +0200
parents 6884bb8130ca
children
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0
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Guido Berhoerster <guido+pui@berhoerster.name>
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1 /*
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2 * Copyright (C) 2018 Guido Berhoerster <guido+pui@berhoerster.name>
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3 *
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4 * Permission is hereby granted, free of charge, to any person obtaining
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5 * a copy of this software and associated documentation files (the
6884bb8130ca Initial revision
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6 * "Software"), to deal in the Software without restriction, including
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Guido Berhoerster <guido+pui@berhoerster.name>
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7 * without limitation the rights to use, copy, modify, merge, publish,
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Guido Berhoerster <guido+pui@berhoerster.name>
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8 * distribute, sublicense, and/or sell copies of the Software, and to
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Guido Berhoerster <guido+pui@berhoerster.name>
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9 * permit persons to whom the Software is furnished to do so, subject to
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10 * the following conditions:
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11 *
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12 * The above copyright notice and this permission notice shall be included
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Guido Berhoerster <guido+pui@berhoerster.name>
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13 * in all copies or substantial portions of the Software.
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14 *
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15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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16 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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Guido Berhoerster <guido+pui@berhoerster.name>
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17 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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18 * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
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19 * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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20 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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21 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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22 */
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23
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24 #include "pui-get-updates.h"
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25
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26 typedef struct {
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27 PkControl *pk_control;
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28 PkTask *pk_task;
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29 guint refresh_interval;
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30 } PuiGetUpdates;
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31
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32 GQuark
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33 pui_get_updates_error_quark(void)
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34 {
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35 return (g_quark_from_static_string("pui-get-updates-error-quark"));
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36 }
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37
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38 static void
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39 on_get_updates_finished(GObject *source_object, GAsyncResult *async_result,
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40 gpointer user_data)
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41 {
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42 GTask *task = user_data;
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43 PuiGetUpdates *get_updates;
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44 PkResults *results = NULL;
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45 PkError *pk_error = NULL;
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46 GError *error = NULL;
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47 gint error_code;
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48 GPtrArray *package_list;
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49
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50 get_updates = g_task_get_task_data(task);
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51
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52 g_debug("get updates transaction finished");
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53 results = pk_client_generic_finish(PK_CLIENT(get_updates->pk_task),
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54 async_result, &error);
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55 if (results == NULL) {
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56 /* pass the error on */
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57 g_task_return_error(task, error);
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58 goto out;
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59 }
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60
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61 pk_error = pk_results_get_error_code(results);
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62 if (pk_error != NULL) {
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63 /* transaction failed, return error */
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64 g_debug("failed to refresh the cache: %s",
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65 pk_error_get_details(pk_error));
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66 if (pk_error_get_code(pk_error) ==
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67 PK_ERROR_ENUM_TRANSACTION_CANCELLED) {
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68 error_code = PUI_GET_UPDATES_ERROR_CANCELLED;
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69 } else {
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70 error_code =
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71 PUI_GET_UPDATES_ERROR_GET_UPDATES_FAILED;
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72 }
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73 error = g_error_new(PUI_GET_UPDATES_ERROR, error_code,
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74 "Failed to get package updates: %s",
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75 pk_error_get_details(pk_error));
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76 g_task_return_error(task, error);
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77 g_object_unref(pk_error);
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78 goto out;
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79 }
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80
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81 /* return results */
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82 package_list = pk_results_get_package_array(results);
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83 g_assert(package_list != NULL);
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84 g_task_return_pointer(task, package_list,
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85 (GDestroyNotify)g_ptr_array_unref);
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86
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87 out:
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88 if (results != NULL) {
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89 g_object_unref(results);
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90 }
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91 g_object_unref(task);
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92 }
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93
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94 static void
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95 on_refresh_cache_finished(GObject *source_object, GAsyncResult *async_result,
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96 gpointer user_data)
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97 {
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98 GTask *task = user_data;
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99 PuiGetUpdates *get_updates;
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100 PkResults *results = NULL;
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101 PkClient *pk_client;
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102 GError *error = NULL;
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103 PkError *pk_error = NULL;
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104 gint error_code;
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105
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106 get_updates = g_task_get_task_data(task);
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107 pk_client = PK_CLIENT(get_updates->pk_task);
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108
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109 g_debug("refresh cache transaction finished");
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110 results = pk_client_generic_finish(pk_client, async_result, &error);
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111 if (results == NULL) {
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112 g_task_return_error(task, error);
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113 goto out;
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114 }
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115
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116 pk_error = pk_results_get_error_code(results);
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117 if (pk_error != NULL) {
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118 /* transaction failed, return error */
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119 g_debug("failed to refresh the cache: %s",
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120 pk_error_get_details(pk_error));
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121 if (pk_error_get_code(pk_error) ==
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122 PK_ERROR_ENUM_TRANSACTION_CANCELLED) {
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123 error_code = PUI_GET_UPDATES_ERROR_CANCELLED;
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124 } else {
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125 error_code = PUI_GET_UPDATES_ERROR_REFRESH_FAILED;
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126 }
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127 error = g_error_new(PUI_GET_UPDATES_ERROR, error_code,
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128 "Failed to refresh the cache: %s",
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129 pk_error_get_details(pk_error));
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130 g_task_return_error(task, error);
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131 g_object_unref(pk_error);
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132 goto out;
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133 }
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134
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135 /* cache is up to date, get updates */
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136 pk_client_get_updates_async(pk_client,
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137 pk_bitfield_value(PK_FILTER_ENUM_NONE),
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138 g_task_get_cancellable(task), NULL, NULL, on_get_updates_finished,
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139 task);
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140
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141 out:
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142 if (results != NULL) {
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143 g_object_unref(results);
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144 }
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Guido Berhoerster <guido+pui@berhoerster.name>
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145 }
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146
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147 static void
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148 on_get_time_since_refresh_finished(GObject *source_object,
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149 GAsyncResult *async_result, gpointer user_data)
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150 {
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151 GTask *task = user_data;
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152 PuiGetUpdates *get_updates;
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153 guint last_refresh;
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154 GError *error = NULL;
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155 PkClient *pk_client;
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156
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157 get_updates = g_task_get_task_data(task);
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158 pk_client = PK_CLIENT(get_updates->pk_task);
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159
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160 last_refresh =
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161 pk_control_get_time_since_action_finish(get_updates->pk_control,
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162 async_result, &error);
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163 if (last_refresh == 0) {
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164 g_task_return_error(task, error);
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165 g_object_unref(task);
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166 return;
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167 }
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168 g_debug("time since last cache refresh: %us", last_refresh);
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169
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170 if (last_refresh > get_updates->refresh_interval) {
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171 /* cache is out of date, refresh first */
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172 g_debug("refreshing the cache");
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173 pk_client_refresh_cache_async(pk_client, FALSE,
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174 g_task_get_cancellable(task), NULL, NULL,
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175 on_refresh_cache_finished, task);
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176 } else {
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177 /* cache is up to date, get updates */
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178 g_debug("getting updates");
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179 pk_client_get_updates_async(pk_client,
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180 pk_bitfield_value(PK_FILTER_ENUM_NONE),
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181 g_task_get_cancellable(task), NULL, NULL,
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182 on_get_updates_finished, task);
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183 }
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184 }
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185
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186 static void
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187 pui_get_updates_free(gpointer data)
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188 {
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189 PuiGetUpdates *get_updates = data;
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190
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191 g_object_unref(get_updates->pk_control);
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192 g_object_unref(get_updates->pk_task);
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193 g_slice_free(PuiGetUpdates, data);
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194 }
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195
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196 void
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197 pui_get_updates_async(PkControl *pk_control, guint refresh_interval,
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198 GCancellable *cancellable, GAsyncReadyCallback callback, gpointer user_data)
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199 {
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200 PuiGetUpdates *get_updates;
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201 GTask *task;
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202 PkClient *pk_client;
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203
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204 get_updates = g_slice_new0(PuiGetUpdates);
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205 get_updates->pk_control = g_object_ref(pk_control);
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206 get_updates->pk_task = pk_task_new();
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207 get_updates->refresh_interval = refresh_interval;
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208
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209 pk_client = PK_CLIENT(get_updates->pk_task);
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210 pk_client_set_cache_age(pk_client, refresh_interval);
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211 pk_client_set_background(pk_client, TRUE);
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212
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213 task = g_task_new(NULL, cancellable, callback, user_data);
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214 g_task_set_task_data(task, get_updates, pui_get_updates_free);
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215
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216 /* check whether to refresh the cache before checking for updates */
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217 g_debug("getting the time since the cache was last refreshed");
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218 pk_control_get_time_since_action_async(pk_control,
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219 PK_ROLE_ENUM_REFRESH_CACHE, cancellable,
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220 on_get_time_since_refresh_finished, task);
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221 }
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222
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223 GPtrArray *
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224 pui_get_updates_finish(GAsyncResult *result, GError **errorp)
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225 {
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226 return (g_task_propagate_pointer(G_TASK(result), errorp));
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227 }