+guint ltt_trace_get_num_cpu(LttTrace *t)
+{
+ return t->num_cpu;
+}
+
+
+/* trace can be NULL
+ *
+ * Return value : 0 success, 1 bad tracefile
+ */
+int parse_trace_header(void *header, LttTracefile *tf, LttTrace *t)
+{
+ guint32 *magic_number = (guint32*)header;
+ struct ltt_trace_header_any *any = (struct ltt_trace_header_any *)header;
+
+ if(*magic_number == LTT_MAGIC_NUMBER)
+ tf->reverse_bo = 0;
+ else if(*magic_number == LTT_REV_MAGIC_NUMBER)
+ tf->reverse_bo = 1;
+ else /* invalid magic number, bad tracefile ! */
+ return 1;
+
+ /* Get float byte order : might be different from int byte order
+ * (or is set to 0 if the trace has no float (kernel trace)) */
+ tf->float_word_order = any->float_word_order;
+
+ if(t) {
+ t->arch_type = ltt_get_uint32(LTT_GET_BO(tf),
+ &any->arch_type);
+ t->arch_variant = ltt_get_uint32(LTT_GET_BO(tf),
+ &any->arch_variant);
+ t->arch_size = any->arch_size;
+ t->ltt_major_version = any->major_version;
+ t->ltt_minor_version = any->minor_version;
+ t->flight_recorder = any->flight_recorder;
+ t->has_heartbeat = any->has_heartbeat;
+ t->has_alignment = any->has_alignment;
+ t->has_tsc = any->has_tsc;
+ }
+
+
+ switch(any->major_version) {
+
+ case 0:
+ switch(any->minor_version) {
+ case 3:
+ {
+ tf->buffer_header_size =
+ sizeof(struct ltt_block_start_header)
+ + sizeof(struct ltt_trace_header_0_3);
+ }
+ break;
+ default:
+ g_warning("Unsupported trace version : %hhu.%hhu",
+ any->major_version, any->minor_version);
+ return 1;
+ }
+ break;
+
+ default:
+ g_warning("Unsupported trace version : %hhu.%hhu",
+ any->major_version, any->minor_version);
+ return 1;
+ }
+
+
+ return 0;
+}
+
+