ltt/branches/poly/lttv/iattribute.c

   1
   2 #include <lttv/iattribute.h>
   3
   4 static void
   5 lttv_iattribute_base_init (gpointer klass)
   6 {
   7   static gboolean initialized = FALSE;
   8
   9   if (!initialized) {
  10     initialized = TRUE;
  11   }
  12 }
  13
  14
  15 GType
  16 lttv_iattribute_get_type (void)
  17 {
  18   static GType type = 0;
  19   if (type == 0) {
  20     static const GTypeInfo info = {
  21       sizeof (LttvIAttributeClass),
  22       lttv_iattribute_base_init,   /* base_init */
  23       NULL,   /* base_finalize */
  24       NULL,   /* class_init */
  25       NULL,   /* class_finalize */
  26       NULL,   /* class_data */
  27       0,
  28       0,      /* n_preallocs */
  29       NULL    /* instance_init */
  30     };
  31     type = g_type_register_static (G_TYPE_INTERFACE, "LttvIAttribute",
  32         &info, 0);
  33   }
  34   return type;
  35 }
  36
  37
  38 unsigned int lttv_iattribute_get_number(LttvIAttribute *self)
  39 {
  40   return LTTV_IATTRIBUTE_GET_CLASS (self)->get_number (self);
  41 }
  42
  43
  44 gboolean lttv_iattribute_named(LttvIAttribute *self, gboolean *homogeneous)
  45 {
  46   return LTTV_IATTRIBUTE_GET_CLASS (self)->named (self, homogeneous);
  47 }
  48
  49
  50 LttvAttributeType lttv_iattribute_get(LttvIAttribute *self, unsigned i,
  51     LttvAttributeName *name, LttvAttributeValue *v)
  52 {
  53   return LTTV_IATTRIBUTE_GET_CLASS (self)->get (self, i, name, v);
  54 }
  55
  56
  57 LttvAttributeType lttv_iattribute_get_by_name(LttvIAttribute *self,
  58     LttvAttributeName name, LttvAttributeValue *v)
  59 {
  60   return LTTV_IATTRIBUTE_GET_CLASS (self)->get_by_name (self, name, v);
  61 }
  62
  63
  64 LttvAttributeValue lttv_iattribute_add(LttvIAttribute *self,
  65     LttvAttributeName name, LttvAttributeType t)
  66 {
  67   return LTTV_IATTRIBUTE_GET_CLASS (self)->add (self, name, t);
  68 }
  69
  70
  71 void lttv_iattribute_remove(LttvIAttribute *self, unsigned i)
  72 {
  73         return LTTV_IATTRIBUTE_GET_CLASS (self)->remove (self, i);
  74 }
  75
  76
  77 void lttv_iattribute_remove_by_name(LttvIAttribute *self,
  78     LttvAttributeName name)
  79 {
  80   return LTTV_IATTRIBUTE_GET_CLASS (self)->remove_by_name (self, name);
  81 }
  82
  83 LttvIAttribute* lttv_iattribute_find_subdir(LttvIAttribute *self,
  84       LttvAttributeName name)
  85 {
  86   return LTTV_IATTRIBUTE_GET_CLASS (self)->find_subdir (self, name);
  87 }
  88
  89
  90 /* Find the named attribute in the table, which must be of the specified type.
  91    If it does not exist, it is created with a default value of 0 (NULL for
  92    pointer types). Since the address of the value is obtained, it may be
  93    changed easily afterwards. The function returns false when the attribute
  94    exists but is of incorrect type. */
  95
  96 gboolean lttv_iattribute_find(LttvIAttribute *self, LttvAttributeName name,
  97     LttvAttributeType t, LttvAttributeValue *v)
  98 {
  99   LttvAttributeType found_type;
 100
 101   found_type = lttv_iattribute_get_by_name(self, name, v);
 102   if(found_type == t) return TRUE;
 103
 104   if(found_type == LTTV_NONE) {
 105     *v = lttv_iattribute_add(self, name, t);
 106     return TRUE;
 107   }
 108
 109   return FALSE;
 110 }
 111
 112
 113 /* Trees of attribute tables may be accessed using a hierarchical path with
 114    components separated by /, like in filesystems */
 115
 116 gboolean lttv_iattribute_find_by_path(LttvIAttribute *self, char *path,
 117     LttvAttributeType t, LttvAttributeValue *v)
 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   for(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_find_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),NULL));
 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(t, 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), NULL));
 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) = G_OBJECT(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