Add sequence

[babeltrace.git] / include / babeltrace / types.h

diff --git a/include/babeltrace/types.h b/include/babeltrace/types.h
index 305d553d700d9a8a9588f22bac9c02580b603791..7da11af24bab4c8e02b9c56f1322afaa45768f0c 100644 (file)
--- a/include/babeltrace/types.h
+++ b/include/babeltrace/types.h
@@ -27,6 +27,9 @@
 #include <babeltrace/align.h>
 #include <string.h>
 
+/* Preallocate this many fields for structures */
+#define DEFAULT_NR_STRUCT_FIELDS 8
+
 /*
  * Always update stream_pos with move_pos and init_pos.
  */
@@ -128,9 +131,27 @@ struct type_class_string {
        struct type_class p;
 };
 
+struct field {
+       GQuark name;
+       struct type_class *type_class;
+};
+
 struct type_class_struct {
        struct type_class p;
-       /* TODO */
+       GHashTable *fields_by_name;     /* Tuples (field name, field index) */
+       GArray *fields;                 /* Array of fields */
+};
+
+struct type_class_array {
+       struct type_class p;
+       size_t len;
+       struct type_class *elem;
+};
+
+struct type_class_sequence {
+       struct type_class p;
+       struct type_class_integer *len_class;
+       struct type_class *elem;
 };
 
 struct type_class *ctf_lookup_type(GQuark qname);
@@ -175,4 +196,40 @@ struct type_class_enum *enum_type_new(const char *name,
                                      size_t alignment);
 void enum_type_free(struct type_class_enum *enum_class);
 
+struct type_class_struct *struct_type_new(const char *name);
+void struct_type_free(struct type_class_struct *struct_class);
+void struct_type_add_field(struct type_class_struct *struct_class,
+                          GQuark field_name,
+                          struct type_class *type_class);
+/*
+ * Returns the index of a field within a structure.
+ */
+unsigned long
+struct_type_lookup_field_index(struct type_class_struct *struct_class,
+                              GQuark field_name);
+/*
+ * field returned only valid as long as the field structure is not appended to.
+ */
+struct field *
+struct_type_get_field_from_index(struct type_class_struct *struct_class,
+                                unsigned long index);
+
+/*
+ * elem_class passed as parameter now belongs to the array. No need to free it
+ * explicitely.
+ */
+struct type_class_array *array_type_new(const char *name,
+                                       size_t len,
+                                       struct type_class *elem_class);
+void array_type_free(struct type_class_array *array_class);
+
+/*
+ * int_class and elem_class passed as parameter now belongs to the sequence. No
+ * need to free them explicitely.
+ */
+struct type_class_sequence *sequence_type_new(const char *name,
+                                       struct type_class_integer *len_class, 
+                                       struct type_class *elem_class);
+void sequence_type_free(struct type_class_sequence *sequence_class);
+
 #endif /* _BABELTRACE_TYPES_H */