author | Mikael Berthe <mikael@lilotux.net> |
Sun, 04 Apr 2010 00:15:53 +0200 | |
changeset 1868 | fdb2f88b908b |
parent 1811 | e6d355e50d7a |
child 1901 | 84bb3e893586 |
permissions | -rw-r--r-- |
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/* |
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* events.c -- Events fonctions |
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* |
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* Copyright (C) 2006-2009 Mikael Berthe <mikael@lilotux.net> |
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* Copyrigth (C) 2010 Myhailo Danylenko <isbear@ukrposte.net> |
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* |
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* This program is free software; you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License as published by |
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* the Free Software Foundation; either version 2 of the License, or (at |
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* your option) any later version. |
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* |
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* This program is distributed in the hope that it will be useful, but |
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* WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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* General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with this program; if not, write to the Free Software |
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 |
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* USA |
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*/ |
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|
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#include <glib.h> |
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#include <string.h> |
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#include "events.h" |
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#include "screen.h" |
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typedef struct { |
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char *id; |
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char *description; |
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time_t timeout; |
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guint source; |
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evs_callback_t callback; |
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gpointer data; |
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GDestroyNotify notify; |
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} evs_t; |
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static GSList *evs_list; // Events list |
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static evs_t *evs_find(const char *evid); |
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static gboolean evs_check_timeout (gpointer userdata) |
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{ |
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evs_t *event = userdata; |
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if (event->callback && |
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!event->callback(EVS_CONTEXT_TIMEOUT, NULL, event->data)) { |
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evs_del(event->id); |
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return FALSE; |
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} |
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return TRUE; // XXX |
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} |
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// evs_new(type, timeout) |
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// Create new event. If id is omitted, generates unique |
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// numerical id (recommended). If timeout is specified, sets |
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// up timeout source, that will call handler in timeout |
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// context after specified number of seconds. If supplied id |
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// already exists, returns NULL, calling destroy notifier, if |
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// one is specified. |
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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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{ |
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static guint evs_idn; |
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evs_t *event; |
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char *stridn; |
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if (!id) { |
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if (!++evs_idn) |
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evs_idn = 1; |
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/* Check for wrapping, we shouldn't reuse ids */ |
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stridn = g_strdup_printf("%d", evs_idn); |
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if (evs_find(stridn)) { |
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g_free(stridn); |
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// We could try another id but for now giving up should be fine... |
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if (notify) |
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notify(udata); |
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return NULL; |
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} |
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} else if (!evs_find(id)) |
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stridn = g_strdup(id); |
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else { |
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if (notify) |
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notify(udata); |
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return NULL; |
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} |
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event = g_new(evs_t, 1); |
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event->id = stridn; |
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event->description = g_strdup(desc); |
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event->timeout = timeout; |
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event->callback = callback; |
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event->data = udata; |
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event->notify = notify; |
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if (timeout) |
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g_timeout_add_seconds(timeout, evs_check_timeout, event); |
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evs_list = g_slist_append(evs_list, event); |
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return stridn; |
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} |
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static evs_t *evs_find(const char *evid) |
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{ |
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GSList *p; |
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if (!evid) |
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return NULL; |
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for (p = evs_list; p; p = g_slist_next(p)) { |
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evs_t *i = p->data; |
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if (!strcmp(evid, i->id)) |
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return i; |
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} |
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return NULL; |
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} |
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// evs_del(evid) |
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// Deletes event. |
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// This will not call event handler, however this will |
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// call destroy notify function. |
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// Returns 0 in case of success, -1 if the evid hasn't been found. |
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int evs_del(const char *evid) |
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{ |
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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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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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// Return 0 in case of success, -1 if the evid hasn't been found. |
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// 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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evs_t *event; |
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150 |
|
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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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!event->callback(context, arg, event->data)) |
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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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// Prints list of events to mcabber log window. |
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163 |
void evs_display_list(void) |
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{ |
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guint count = 0; |
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166 |
GSList *p; |
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|
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scr_LogPrint(LPRINT_NORMAL, "Events list:"); |
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for (p = evs_list; p; p = g_slist_next(p)) { |
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evs_t *i = p->data; |
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scr_LogPrint(LPRINT_NORMAL, |
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"Id: %-3s %s", i->id, |
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(i->description ? i->description : "")); |
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count++; |
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175 |
} |
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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 |
|
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