X-Git-Url: http://git.efficios.com/?p=babeltrace.git;a=blobdiff_plain;f=include%2Fbabeltrace%2Ftypes.h;h=417bb691ca6020453905c7ecac64596955d00759;hp=23fec0fcfcba89c48fd2715b30b55e0daa389b7a;hb=90b676d73fc6f817958083c0f159028a2f0b40ca;hpb=d79865b92da224131f58ab311e75e49043b62c7a

diff --git a/include/babeltrace/types.h b/include/babeltrace/types.h
index 23fec0fc..417bb691 100644
--- a/include/babeltrace/types.h
+++ b/include/babeltrace/types.h
@@ -4,7 +4,7 @@
 /*
  * BabelTrace
  *
- * Type header
+ * Type Header
  *
  * Copyright (c) 2010 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
  *
@@ -23,4 +23,99 @@
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  */
 
+#include <babeltrace/format.h>
+
+struct type_class {
+	GQuark name;		/* type name */
+	size_t alignment;	/* type alignment, in bits */
+	/*
+	 * Type copy function. Knows how to find the child type_class from the
+	 * parent type_class.
+	 */
+	size_t (*copy)(unsigned char *dest, const struct format *fdest, 
+		       const unsigned char *src, const struct format *fsrc,
+		       const struct type_class *type_class);
+	void (*free)(struct type_class *type_class);
+};
+
+struct type_class_integer {
+	struct type_class p;
+	size_t len;		/* length, in bits. */
+	int byte_order;		/* byte order */
+	int signedness;
+};
+
+struct type_class_bitfield {
+	struct type_class_integer p;
+	size_t start_offset;	/* offset from base address, in bits */
+};
+
+struct type_class_float {
+	struct type_class p;
+	size_t mantissa_len;
+	size_t exp_len;
+	int byte_order;
+	/* TODO: we might want to express more info about NaN, +inf and -inf */
+};
+
+struct enum_table {
+	GHashTable *value_to_quark;	/* Tuples (value, GQuark) */
+	GHashTable *quark_to_value;	/* Tuples (GQuark, value) */
+};
+
+struct type_class_enum {
+	struct type_class_bitfield p;	/* inherit from bitfield */
+	struct enum_table table;
+};
+
+struct type_class_struct {
+	struct type_class p;
+	/* TODO */
+};
+
+struct type_class *ctf_lookup_type(GQuark qname);
+int ctf_register_type(struct type_class *type_class);
+
+/* Nameless types can be created by passing a NULL name */
+
+struct type_class_integer *integer_type_new(const char *name,
+					    size_t start_offset,
+					    size_t len, int byte_order,
+					    int signedness);
+void integer_type_free(struct type_class_integer *int_class);
+
+struct type_class_bitfield *bitfield_type_new(const char *name,
+					      size_t start_offset,
+					      size_t len, int byte_order,
+					      int signedness);
+void bitfield_type_free(struct type_class_bitfield *bitfield_class);
+
+struct type_class_float *float_type_new(const char *name,
+					size_t mantissa_len,
+					size_t exp_len, int byte_order,
+					size_t alignment);
+void float_type_free(struct type_class_float *float_class);
+
+/*
+ * A GQuark can be translated to/from strings with g_quark_from_string() and
+ * g_quark_to_string().
+ */
+GQuark enum_uint_to_quark(const struct type_class_enum *enum_class, uint64_t v);
+GQuark enum_int_to_quark(const struct type_class_enum *enum_class, uint64_t v);
+uint64_t enum_quark_to_uint(const struct type_class_enum *enum_class,
+			    size_t len, int byte_order, GQuark q);
+int64_t enum_quark_to_int(const struct type_class_enum *enum_class,
+			  size_t len, int byte_order, GQuark q);
+void enum_signed_insert(struct type_class_enum *enum_class,
+			int64_t v, GQuark q);
+void enum_unsigned_insert(struct type_class_enum *enum_class,
+			  uint64_t v, GQuark q);
+
+struct type_class_enum *enum_type_new(const char *name,
+				      size_t start_offset,
+				      size_t len, int byte_order,
+				      int signedness,
+				      size_t alignment);
+void enum_type_free(struct type_class_enum *enum_class);
+
 #endif /* _BABELTRACE_TYPES_H */