| 1 | |
| 2 | static void |
| 3 | lttv_iattribute_base_init (gpointer g_class) |
| 4 | { |
| 5 | static gboolean initialized = FALSE; |
| 6 | |
| 7 | if (!initialized) { |
| 8 | initialized = TRUE; |
| 9 | } |
| 10 | } |
| 11 | |
| 12 | |
| 13 | GType |
| 14 | lttv_iattribute_get_type (void) |
| 15 | { |
| 16 | static GType type = 0; |
| 17 | if (type == 0) { |
| 18 | static const GTypeInfo info = { |
| 19 | sizeof (LttvIAttributeClass), |
| 20 | lttv_iattribute_base_init, /* base_init */ |
| 21 | NULL, /* base_finalize */ |
| 22 | NULL, /* class_init */ |
| 23 | NULL, /* class_finalize */ |
| 24 | NULL, /* class_data */ |
| 25 | 0, |
| 26 | 0, /* n_preallocs */ |
| 27 | NULL /* instance_init */ |
| 28 | }; |
| 29 | type = g_type_register_static (G_TYPE_INTERFACE, "LttvIAttribute", |
| 30 | &info, 0); |
| 31 | } |
| 32 | return type; |
| 33 | } |
| 34 | |
| 35 | |
| 36 | unsigned int lttv_iattribute_get_number(LttvIAttribute *self) |
| 37 | { |
| 38 | return LTTV_IATTRIBUTE_GET_CLASS (self)->get_number (self); |
| 39 | } |
| 40 | |
| 41 | |
| 42 | gboolean lttv_iattribute_named(LttvIAttribute *self, gboolean *homogeneous) |
| 43 | { |
| 44 | return LTTV_IATTRIBUTE_GET_CLASS (self)->named (self, homogeneous); |
| 45 | } |
| 46 | |
| 47 | |
| 48 | LttvAttributeType lttv_iattribute_get(LttvIAttribute *self, unsigned i, |
| 49 | LttvAttributeName *name, LttvAttributeValue *v) |
| 50 | { |
| 51 | return LTTV_IATTRIBUTE_GET_CLASS (self)->get (self, i, name, v); |
| 52 | } |
| 53 | |
| 54 | |
| 55 | LttvAttributeType lttv_iattribute_get_by_name(LttvIAttribute *self, |
| 56 | LttvAttributeName name, LttvAttributeValue *v) |
| 57 | { |
| 58 | return LTTV_IATTRIBUTE_GET_CLASS (self)->get_by_name (self, name, v); |
| 59 | } |
| 60 | |
| 61 | |
| 62 | void lttv_iattribute_add(LttvIAttribute *self, LttvAttributeName name, |
| 63 | LttvAttributeType t, LttvAttributeValue *v) |
| 64 | { |
| 65 | return LTTV_IATTRIBUTE_GET_CLASS (self)->add (self, name, t, v); |
| 66 | } |
| 67 | |
| 68 | |
| 69 | void lttv_iattribute_remove(LttvIAttribute *self, unsigned i) |
| 70 | { |
| 71 | return LTTV_IATTRIBUTE_GET_CLASS (self)->remove (self, i); |
| 72 | } |
| 73 | |
| 74 | |
| 75 | void lttv_iattribute_remove_by_name(LttvIAttribute *self, |
| 76 | LttvAttributeName name) |
| 77 | { |
| 78 | return LTTV_IATTRIBUTE_GET_CLASS (self)->remove_by_name (self, name); |
| 79 | } |
| 80 | |
| 81 | LttvIAttribute* lttv_iattribute_create_subdir(LttvIAttribute *self, |
| 82 | LttvAttributeName name) |
| 83 | { |
| 84 | return LTTV_IATTRIBUTE_GET_CLASS (self)->get_number (self, name); |
| 85 | } |
| 86 | |
| 87 | |
| 88 | /* Find the named attribute in the table, which must be of the specified type. |
| 89 | If it does not exist, it is created with a default value of 0 (NULL for |
| 90 | pointer types). Since the address of the value is obtained, it may be |
| 91 | changed easily afterwards. The function returns false when the attribute |
| 92 | exists but is of incorrect type. */ |
| 93 | |
| 94 | gboolean lttv_iattribute_find(LttvIAttribute *self, LttvAttributeName name, |
| 95 | LttvAttributeType t, LttvAttributeValue *v) |
| 96 | { |
| 97 | LttvAttributeType found_type; |
| 98 | |
| 99 | found_type = lttv_iattribute_get_by_name(self, name, v); |
| 100 | if(found_type == t) return TRUE; |
| 101 | |
| 102 | if(found_type == LTTV_NONE) { |
| 103 | v = lttv_iattribute_add(self, name, t); |
| 104 | return TRUE; |
| 105 | } |
| 106 | |
| 107 | return FALSE; |
| 108 | } |
| 109 | |
| 110 | |
| 111 | /* Trees of attribute tables may be accessed using a hierarchical path with |
| 112 | components separated by /, like in filesystems */ |
| 113 | |
| 114 | gboolean lttv_iattribute_find_by_path(LttvIAttribute *self, char *path, |
| 115 | LttvAttributeType t, LttvAttributeValue *v) |
| 116 | { |
| 117 | char *cursor; |
| 118 | |
| 119 | LttvIAttribute *node = self; |
| 120 | |
| 121 | LttvAttributeType found_type; |
| 122 | |
| 123 | LttvAttributeName name; |
| 124 | |
| 125 | gchar **components, **cursor; |
| 126 | |
| 127 | components = g_strsplit(path, "\"", G_MAXINT); |
| 128 | |
| 129 | if(components == NULL || *components == NULL) { |
| 130 | g_strfreev(components); |
| 131 | return FALSE; |
| 132 | } |
| 133 | |
| 134 | while(cursor = components;;) { |
| 135 | name = g_quark_from_string(*cursor); |
| 136 | cursor++; |
| 137 | |
| 138 | if(*cursor == NULL) { |
| 139 | g_strfreev(components); |
| 140 | return lttv_iattribute_find(node, name, t, v); |
| 141 | } |
| 142 | else { |
| 143 | found_type = lttv_iattribute_get_by_name(node, name, v); |
| 144 | if(found_type == LTTV_NONE) { |
| 145 | node = lttv_iattribute_create_subdir(node, name); |
| 146 | } |
| 147 | else if(found_type == LTTV_GOBJECT && |
| 148 | LTTV_IS_IATTRIBUTE(*(v->v_gobject))) { |
| 149 | node = LTTV_IATTRIBUTE(*(v->v_gobject)); |
| 150 | } |
| 151 | else { |
| 152 | g_strfreev(components); |
| 153 | return FALSE; |
| 154 | } |
| 155 | } |
| 156 | } |
| 157 | } |
| 158 | |
| 159 | /* Shallow and deep copies */ |
| 160 | |
| 161 | LttvIAttribute *lttv_iattribute_shallow_copy(LttvIAttribute *self) |
| 162 | { |
| 163 | LttvIAttribute copy; |
| 164 | |
| 165 | LttvAttributeType t; |
| 166 | |
| 167 | LttvAttributeValue v, v_copy; |
| 168 | |
| 169 | LttvAttributeName name; |
| 170 | |
| 171 | int i; |
| 172 | |
| 173 | int nb_attributes = lttv_iattribute_get_number(self); |
| 174 | |
| 175 | copy = LTTV_IATTRIBUTE(g_object_new(G_OBJECT_TYPE(self))); |
| 176 | |
| 177 | for(i = 0 ; i < nb_attributes ; i++) { |
| 178 | t = lttv_iattribute_get(self, i, &name, &v); |
| 179 | v_copy = lttv_iattribute_add(copy, name, t); |
| 180 | lttv_iattribute_copy_value(v_copy, v); |
| 181 | } |
| 182 | } |
| 183 | |
| 184 | LttvIAttribute *lttv_iattribute_deep_copy(LttvIAttribute *self) |
| 185 | { |
| 186 | LttvIAttribute copy, child; |
| 187 | |
| 188 | LttvAttributeType t; |
| 189 | |
| 190 | LttvAttributeValue v, v_copy; |
| 191 | |
| 192 | LttvAttributeName name; |
| 193 | |
| 194 | int i; |
| 195 | |
| 196 | int nb_attributes = lttv_iattribute_get_number(self); |
| 197 | |
| 198 | copy = LTTV_IATTRIBUTE(g_object_new(G_OBJECT_TYPE(self))); |
| 199 | |
| 200 | for(i = 0 ; i < nb_attributes ; i++) { |
| 201 | t = lttv_iattribute_get(self, i, &name, &v); |
| 202 | v_copy = lttv_iattribute_add(copy, name, t); |
| 203 | if(t == LTTV_GOBJECT && LTTV_IS_IATTRIBUTE(*(v->v_gobject))) { |
| 204 | child = LTTV_IATTRIBUTE(*(v->v_gobject)); |
| 205 | *(v_copy->v_gobject) = lttv_iattribute_deep_copy(child); |
| 206 | } |
| 207 | else lttv_iattribute_copy_value(t, v_copy, v); |
| 208 | } |
| 209 | } |
| 210 | |
| 211 | void lttv_iattribute_copy_value(LttvAttributeType t, LttvAttributeValue dest, |
| 212 | LttvAttributeValue src) |
| 213 | { |
| 214 | switch(t) { |
| 215 | case LTTV_INT: |
| 216 | *(dest->v_int) = *(src->v_int); |
| 217 | break; |
| 218 | |
| 219 | case LTTV_UINT: |
| 220 | *(dest->v_uint) = *(src->v_uint); |
| 221 | break; |
| 222 | |
| 223 | case LTTV_LONG: |
| 224 | *(dest->v_long) = *(src->v_long); |
| 225 | break; |
| 226 | |
| 227 | case LTTV_ULONG: |
| 228 | *(dest->v_ulong) = *(src->v_ulong); |
| 229 | break; |
| 230 | |
| 231 | case LTTV_FLOAT: |
| 232 | *(dest->v_float) = *(src->v_float); |
| 233 | break; |
| 234 | |
| 235 | case LTTV_DOUBLE: |
| 236 | *(dest->v_double) = *(src->v_double); |
| 237 | break; |
| 238 | |
| 239 | case LTTV_TIME: |
| 240 | *(dest->v_time) = *(src->v_time); |
| 241 | break; |
| 242 | |
| 243 | case LTTV_POINTER: |
| 244 | *(dest->v_pointer) = *(src->v_pointer); |
| 245 | break; |
| 246 | |
| 247 | case LTTV_STRING: |
| 248 | *(dest->v_string) = *(src->v_string); |
| 249 | break; |
| 250 | |
| 251 | case LTTV_GOBJECT: |
| 252 | *(dest->v_gobject) = *(src->v_gobject); |
| 253 | break; |
| 254 | |
| 255 | case LTTV_NONE: |
| 256 | break; |
| 257 | } |
| 258 | } |
| 259 | |
| 260 | |