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1 /* GObject - GLib Type, Object, Parameter and Signal Library |
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2 * Copyright (C) 2001 Red Hat, Inc. |
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3 * Portions copyright (c) 2006-2009 Nokia Corporation. All rights reserved. |
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4 * |
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5 * This library is free software; you can redistribute it and/or |
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6 * modify it under the terms of the GNU Lesser General Public |
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7 * License as published by the Free Software Foundation; either |
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8 * version 2 of the License, or (at your option) any later version. |
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9 * |
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10 * This library is distributed in the hope that it will be useful, |
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11 * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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13 * Lesser General Public License for more details. |
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14 * |
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15 * You should have received a copy of the GNU Lesser General |
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16 * Public License along with this library; if not, write to the |
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17 * Free Software Foundation, Inc., 59 Temple Place, Suite 330, |
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18 * Boston, MA 02111-1307, USA. |
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19 */ |
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20 |
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21 #include "config.h" |
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22 |
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23 #include "gsourceclosure.h" |
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24 #include "gboxed.h" |
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25 #include "genums.h" |
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26 #include "gmarshal.h" |
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27 #include "gvalue.h" |
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28 #include "gvaluetypes.h" |
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29 #include "gobjectalias.h" |
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30 |
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31 #ifdef __SYMBIAN32__ |
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32 #include <glib_global.h> |
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33 #include "gobject_wsd.h" |
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34 #endif /* __SYMBIAN32__ */ |
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35 #if EMULATOR |
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36 |
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37 PLS(our_type ,g_io_channel_get_type ,GType) |
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38 #define our_type (*FUNCTION_NAME(our_type ,g_io_channel_get_type )()) |
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39 |
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40 #endif /* EMULATOR */ |
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41 EXPORT_C GType |
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42 g_io_channel_get_type (void) |
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43 { |
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44 #if !(EMULATOR) |
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45 static GType our_type = 0; |
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46 #endif /* EMULATOR */ |
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47 |
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48 if (our_type == 0) |
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49 our_type = g_boxed_type_register_static ("GIOChannel", |
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50 (GBoxedCopyFunc) g_io_channel_ref, |
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51 (GBoxedFreeFunc) g_io_channel_unref); |
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52 |
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53 return our_type; |
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54 } |
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55 |
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56 #if EMULATOR |
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57 #undef our_type |
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58 |
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59 PLS(etype ,g_io_condition_get_type,GType) |
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60 #define etype (*FUNCTION_NAME(etype,g_io_condition_get_type)()) |
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61 |
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62 #endif /* EMULATOR */ |
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63 |
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64 EXPORT_C GType |
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65 g_io_condition_get_type (void) |
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66 { |
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67 #if !(EMULATOR) |
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68 static GType etype = 0; |
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69 #endif /* EMULATOR */ |
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70 if (etype == 0) |
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71 { |
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72 static const GFlagsValue values[] = { |
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73 { G_IO_IN, "G_IO_IN", "in" }, |
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74 { G_IO_OUT, "G_IO_OUT", "out" }, |
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75 { G_IO_PRI, "G_IO_PRI", "pri" }, |
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76 { G_IO_ERR, "G_IO_ERR", "err" }, |
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77 { G_IO_HUP, "G_IO_HUP", "hup" }, |
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78 { G_IO_NVAL, "G_IO_NVAL", "nval" }, |
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79 { 0, NULL, NULL } |
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80 }; |
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81 etype = g_flags_register_static ("GIOCondition", values); |
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82 } |
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83 return etype; |
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84 } |
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85 |
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86 #if EMULATOR |
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87 #undef etype |
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88 #endif /* EMULATOR */ |
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89 |
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90 /* We need to hand-write this marshaler, since it doesn't have an |
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91 * instance object. |
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92 */ |
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93 static void |
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94 source_closure_marshal_BOOLEAN__VOID (GClosure *closure, |
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95 GValue *return_value, |
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96 guint n_param_values, |
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97 const GValue *param_values, |
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98 gpointer invocation_hint, |
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99 gpointer marshal_data) |
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100 { |
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101 GSourceFunc callback; |
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102 GCClosure *cc = (GCClosure*) closure; |
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103 gboolean v_return; |
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104 |
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105 g_return_if_fail (return_value != NULL); |
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106 g_return_if_fail (n_param_values == 0); |
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107 |
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108 callback = (GSourceFunc) (marshal_data ? marshal_data : cc->callback); |
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109 |
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110 v_return = callback (closure->data); |
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111 |
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112 g_value_set_boolean (return_value, v_return); |
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113 } |
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114 |
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115 static gboolean |
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116 io_watch_closure_callback (GIOChannel *channel, |
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117 GIOCondition condition, |
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118 gpointer data) |
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119 { |
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120 GClosure *closure = data; |
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121 |
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122 GValue params[2] = { { 0, }, { 0, } }; |
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123 GValue result_value = { 0, }; |
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124 gboolean result; |
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125 |
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126 g_value_init (&result_value, G_TYPE_BOOLEAN); |
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127 g_value_init (¶ms[0], G_TYPE_IO_CHANNEL); |
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128 g_value_set_boxed (¶ms[0], channel); |
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129 |
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130 g_value_init (¶ms[1], G_TYPE_IO_CONDITION); |
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131 g_value_set_flags (¶ms[1], condition); |
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132 |
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133 g_closure_invoke (closure, &result_value, 2, params, NULL); |
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134 |
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135 result = g_value_get_boolean (&result_value); |
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136 g_value_unset (&result_value); |
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137 g_value_unset (¶ms[0]); |
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138 g_value_unset (¶ms[1]); |
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139 |
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140 return result; |
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141 } |
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142 |
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143 static gboolean |
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144 source_closure_callback (gpointer data) |
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145 { |
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146 GClosure *closure = data; |
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147 GValue result_value = { 0, }; |
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148 gboolean result; |
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149 |
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150 g_value_init (&result_value, G_TYPE_BOOLEAN); |
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151 |
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152 g_closure_invoke (closure, &result_value, 0, NULL, NULL); |
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153 |
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154 result = g_value_get_boolean (&result_value); |
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155 g_value_unset (&result_value); |
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156 |
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157 return result; |
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158 } |
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159 |
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160 static void |
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161 closure_callback_get (gpointer cb_data, |
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162 GSource *source, |
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163 GSourceFunc *func, |
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164 gpointer *data) |
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165 { |
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166 GSourceFunc closure_callback = source->source_funcs->closure_callback; |
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167 |
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168 if (!closure_callback) |
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169 { |
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170 if (source->source_funcs == &g_io_watch_funcs) |
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171 closure_callback = (GSourceFunc)io_watch_closure_callback; |
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172 else if (source->source_funcs == &g_timeout_funcs || |
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173 source->source_funcs == &g_idle_funcs) |
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174 closure_callback = source_closure_callback; |
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175 } |
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176 |
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177 *func = closure_callback; |
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178 *data = cb_data; |
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179 } |
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180 |
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181 #if EMULATOR |
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182 |
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183 PLS(closure_callback_funcs,gsourceclosure,GSourceCallbackFuncs) |
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184 #define closure_callback_funcs (*FUNCTION_NAME(closure_callback_funcs,gsourceclosure)()) |
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185 |
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186 const GSourceCallbackFuncs temp_closure_callback_funcs = { |
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187 (void (*) (gpointer)) g_closure_ref, |
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188 (void (*) (gpointer)) g_closure_unref, |
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189 closure_callback_get |
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190 }; |
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191 |
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192 |
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193 #else |
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194 |
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195 static GSourceCallbackFuncs closure_callback_funcs = { |
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196 (void (*) (gpointer)) g_closure_ref, |
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197 (void (*) (gpointer)) g_closure_unref, |
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198 closure_callback_get |
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199 }; |
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200 #endif /* EMULATOR */ |
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201 |
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202 /** |
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203 * g_source_set_closure: |
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204 * @source: the source |
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205 * @closure: a #GClosure |
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206 * |
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207 * Set the callback for a source as a #GClosure. |
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208 * |
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209 * If the source is not one of the standard GLib types, the @closure_callback |
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210 * and @closure_marshal fields of the #GSourceFuncs structure must have been |
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211 * filled in with pointers to appropriate functions. |
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212 */ |
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213 EXPORT_C void |
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214 g_source_set_closure (GSource *source, |
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215 GClosure *closure) |
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216 { |
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217 g_return_if_fail (source != NULL); |
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218 g_return_if_fail (closure != NULL); |
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219 |
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220 if (!source->source_funcs->closure_callback && |
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221 source->source_funcs != &g_io_watch_funcs && |
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222 source->source_funcs != &g_timeout_funcs && |
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223 source->source_funcs != &g_idle_funcs) |
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224 { |
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225 g_critical (G_STRLOC "closure can not be set on closure without GSourceFuncs::closure_callback\n"); |
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226 return; |
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227 } |
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228 |
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229 g_closure_ref (closure); |
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230 g_closure_sink (closure); |
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231 g_source_set_callback_indirect (source, closure, &closure_callback_funcs); |
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232 |
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233 if (G_CLOSURE_NEEDS_MARSHAL (closure)) |
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234 { |
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235 GClosureMarshal marshal = (GClosureMarshal)source->source_funcs->closure_marshal; |
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236 if (!marshal) |
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237 { |
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238 if (source->source_funcs == &g_idle_funcs || |
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239 source->source_funcs == &g_timeout_funcs) |
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240 marshal = source_closure_marshal_BOOLEAN__VOID; |
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241 else if (source->source_funcs == &g_io_watch_funcs) |
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242 marshal = g_cclosure_marshal_BOOLEAN__FLAGS; |
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243 } |
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244 if (marshal) |
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245 g_closure_set_marshal (closure, marshal); |
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246 } |
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247 } |
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248 |
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249 #define __G_SOURCECLOSURE_C__ |
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250 #include "gobjectaliasdef.c" |