1 files changed, 43 insertions, 0 deletions
diff --git a/lib/erl_interface/src/decode/decode_trace.c b/lib/erl_interface/src/decode/decode_trace.c
new file mode 100644
index 0000000000..ebaa78e29e
--- /dev/null
+++ b/lib/erl_interface/src/decode/decode_trace.c
@@ -0,0 +1,43 @@
+/*
+ * %CopyrightBegin%
+ * 
+ * Copyright Ericsson AB 1998-2009. All Rights Reserved.
+ * 
+ * The contents of this file are subject to the Erlang Public License,
+ * Version 1.1, (the "License"); you may not use this file except in
+ * compliance with the License. You should have received a copy of the
+ * Erlang Public License along with this software. If not, it can be
+ * retrieved online at http://www.erlang.org/.
+ * 
+ * Software distributed under the License is distributed on an "AS IS"
+ * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
+ * the License for the specific language governing rights and limitations
+ * under the License.
+ * 
+ * %CopyrightEnd%
+ */
+#include "eidef.h"
+#include "putget.h"
+
+int ei_decode_trace(const char *buf, int *index, erlang_trace *p)
+{
+  int arity = 0;
+  int tindex = *index;
+  
+  /* use a temporary index if any function should fail */
+
+  /* { Flags, Label, Serial, FromPid, Prev } */
+  if (ei_decode_tuple_header(buf, &tindex, &arity)
+      || (arity != 5)
+      || ei_decode_long(buf, &tindex, &p->flags)
+      || ei_decode_long(buf, &tindex, &p->label)
+      || ei_decode_long(buf, &tindex, &p->serial)
+      || ei_decode_pid( buf, &tindex, &p->from)
+      || ei_decode_long(buf, &tindex, &p->prev)) return -1;
+
+  /* index is updated by the functions we called */
+  
+  *index = tindex;
+
+  return 0;
+}