Mercurial > hg
annotate mcabber/mcabber/events.c @ 2366:480585fec48a default tip
Update spell checking section in the configuration file
author | Mikael Berthe <mikael@lilotux.net> |
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date | Tue, 30 May 2023 16:37:46 +0200 |
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1 /* |
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2 * events.c -- Events fonctions |
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3 * |
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4 * Copyright (C) 2006-2010 Mikael Berthe <mikael@lilotux.net> |
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5 * Copyright (C) 2010 Myhailo Danylenko <isbear@ukrpost.net> |
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6 * |
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7 * This program is free software; you can redistribute it and/or modify |
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8 * it under the terms of the GNU General Public License as published by |
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9 * the Free Software Foundation; either version 2 of the License, or (at |
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10 * your option) any later version. |
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11 * |
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12 * This program is distributed in the hope that it will be useful, but |
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13 * WITHOUT ANY WARRANTY; without even the implied warranty of |
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14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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15 * General Public License 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 this program; if not, see <http://www.gnu.org/licenses/>. |
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19 */ |
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20 |
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21 #include <glib.h> |
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23 #include "events.h" |
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24 #include "screen.h" |
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25 |
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26 typedef struct { |
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27 char *id; |
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28 char *description; |
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29 time_t timeout; |
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30 guint source; |
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31 evs_callback_t callback; |
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32 gpointer data; |
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33 GDestroyNotify notify; |
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34 } evs_t; |
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35 |
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36 static GSList *evs_list; // Events list |
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37 |
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38 static evs_t *evs_find(const char *evid); |
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39 |
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40 static gboolean evs_check_timeout (gpointer userdata) |
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41 { |
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42 evs_t *event = userdata; |
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43 if (event->callback && |
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44 !event->callback(EVS_CONTEXT_TIMEOUT, NULL, event->data)) { |
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45 evs_del(event->id); |
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46 return FALSE; |
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47 } |
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48 return TRUE; // XXX |
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49 } |
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50 |
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51 // evs_new(type, timeout) |
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52 // Create new event. If id is omitted, generates unique |
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53 // numerical id (recommended). If timeout is specified, sets |
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54 // up timeout source, that will call handler in timeout |
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55 // context after specified number of seconds. If supplied id |
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56 // already exists, returns NULL, calling destroy notifier, if |
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57 // one is specified. |
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58 const char *evs_new(const char *desc, const char *id, time_t timeout, evs_callback_t callback, gpointer udata, GDestroyNotify notify) |
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59 { |
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60 static guint evs_idn; |
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61 evs_t *event; |
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62 char *stridn; |
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63 |
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64 if (!id) { |
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65 if (!++evs_idn) |
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66 evs_idn = 1; |
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67 /* Check for wrapping, we shouldn't reuse ids */ |
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68 stridn = g_strdup_printf("%d", evs_idn); |
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69 if (evs_find(stridn)) { |
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70 g_free(stridn); |
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71 // We could try another id but for now giving up should be fine... |
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72 if (notify) |
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73 notify(udata); |
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74 return NULL; |
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75 } |
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76 } else if (!evs_find(id)) |
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77 stridn = g_strdup(id); |
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78 else { |
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79 if (notify) |
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80 notify(udata); |
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81 return NULL; |
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82 } |
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83 |
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84 event = g_new(evs_t, 1); |
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85 |
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86 event->id = stridn; |
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87 event->description = g_strdup(desc); |
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88 event->timeout = timeout; |
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89 event->callback = callback; |
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90 event->data = udata; |
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91 event->notify = notify; |
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92 |
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93 if (timeout) |
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94 event->source = g_timeout_add_seconds(timeout, evs_check_timeout, event); |
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95 else |
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96 event->source = 0; |
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97 |
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98 evs_list = g_slist_append(evs_list, event); |
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99 return stridn; |
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100 } |
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101 |
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102 static evs_t *evs_find(const char *evid) |
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103 { |
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104 GSList *p; |
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105 |
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106 if (!evid) |
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107 return NULL; |
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108 |
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109 for (p = evs_list; p; p = g_slist_next(p)) { |
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110 evs_t *i = p->data; |
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111 if (!strcmp(evid, i->id)) |
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112 return i; |
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113 } |
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114 return NULL; |
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115 } |
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116 |
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117 // evs_del(evid) |
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118 // Deletes event. |
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119 // This will not call event handler, however this will |
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120 // call destroy notify function. |
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121 // Returns 0 in case of success, -1 if the evid hasn't been found. |
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122 int evs_del(const char *evid) |
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123 { |
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124 evs_t *event = evs_find(evid); |
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125 |
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126 if (!event) |
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127 return -1; |
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128 |
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129 if (event->notify) |
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130 event->notify(event->data); |
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131 if (event->source) |
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132 g_source_remove(event->source); |
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133 |
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134 evs_list = g_slist_remove(evs_list, event); |
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135 g_free(event->id); |
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136 g_free(event->description); |
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137 g_free(event); |
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138 |
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139 return 0; // Ok, deleted |
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140 } |
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141 |
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142 // evs_callback(evid, evcontext, argument) |
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143 // Callback processing for the specified event. |
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144 // If event handler will return FALSE, event will be destroyed. |
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145 // Return 0 in case of success, -1 if the evid hasn't been found. |
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146 // evcontext and argument are transparently passed to event handler. |
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147 int evs_callback(const char *evid, guint context, const char *arg) |
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148 { |
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149 evs_t *event; |
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150 |
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151 event = evs_find(evid); |
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152 if (!event) |
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153 return -1; |
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154 |
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155 if (event->callback && |
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156 !event->callback(context, arg, event->data)) |
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157 evs_del(evid); |
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158 return 0; |
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159 } |
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160 |
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161 // evs_display_list() |
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162 // Prints list of events to mcabber log window. |
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163 void evs_display_list(void) |
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164 { |
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165 guint count = 0; |
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166 GSList *p; |
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167 |
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168 scr_LogPrint(LPRINT_NORMAL, "Events list:"); |
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169 for (p = evs_list; p; p = g_slist_next(p)) { |
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170 evs_t *i = p->data; |
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171 scr_LogPrint(LPRINT_NORMAL, |
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172 "Id: %-3s %s", i->id, |
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173 (i->description ? i->description : "")); |
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174 count++; |
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175 } |
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176 scr_LogPrint(LPRINT_NORMAL, "End of events list."); |
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177 if (count+2 > scr_getlogwinheight()) { |
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178 scr_setmsgflag_if_needed(SPECIAL_BUFFER_STATUS_ID, TRUE); |
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179 scr_setattentionflag_if_needed(SPECIAL_BUFFER_STATUS_ID, TRUE, |
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180 ROSTER_UI_PRIO_STATUS_WIN_MESSAGE, prio_max); |
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181 } |
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182 } |
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183 |
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184 // evs_geteventslist() |
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185 // Return a singly-linked-list of events ids. |
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186 // Data in list should not be modified and can disappear, |
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187 // you must strdup them, if you want them to persist. |
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188 // Note: the caller should free the list after use. |
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189 GSList *evs_geteventslist(void) |
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190 { |
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191 GSList *evidlist = NULL, *p; |
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192 |
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193 for (p = evs_list; p; p = g_slist_next(p)) { |
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194 evs_t *i = p->data; |
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195 evidlist = g_slist_append(evidlist, i->id); |
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196 } |
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197 |
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198 return evidlist; |
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199 } |
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200 |
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201 // evs_deinit() |
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202 // Frees all events. |
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203 void evs_deinit(void) |
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204 { |
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205 GSList *eel; |
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206 for (eel = evs_list; eel; eel = eel->next) { |
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207 evs_t *event = eel->data; |
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208 if (event->notify) |
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209 event->notify(event->data); |
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210 if (event->source) |
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211 g_source_remove(event->source); |
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212 |
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213 evs_list = g_slist_remove(evs_list, event); |
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214 g_free(event->id); |
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215 g_free(event->description); |
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216 g_free(event); |
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217 } |
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218 g_slist_free(evs_list); |
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219 evs_list = NULL; |
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220 } |
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221 |
1811 | 222 /* vim: set expandtab cindent cinoptions=>2\:2(0 sw=2 ts=2: For Vim users... */ |