Add a mechanism for embedding run-time functions into the generated code

1 files changed, 44 insertions, 0 deletions

diff --git a/lib/asn1/src/asn1rtt_per_common.erl b/lib/asn1/src/asn1rtt_per_common.erl
new file mode 100644
index 0000000000..926f0fe228
--- /dev/null
+++ b/lib/asn1/src/asn1rtt_per_common.erl
@@ -0,0 +1,44 @@
+%%
+%% %CopyrightBegin%
+%%
+%% Copyright Ericsson AB 2012. 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%
+%%
+%%
+-module(asn1rtt_per_common).
+
+-include("asn1_records.hrl").
+
+-export([decode_fragmented/3]).
+-define('16K',16384).
+
+decode_fragmented(SegSz0, Buf0, Unit) ->
+    SegSz = SegSz0 * Unit * ?'16K',
+    <<Res:SegSz/bitstring,Buf/bitstring>> = Buf0,
+    decode_fragmented_1(Buf, Unit, Res).
+
+decode_fragmented_1(<<0:1,N:7,Buf0/bitstring>>, Unit, Res) ->
+    Sz = N*Unit,
+    <<S:Sz/bitstring,Buf/bitstring>> = Buf0,
+    {<<Res/bitstring,S/bitstring>>,Buf};
+decode_fragmented_1(<<1:1,0:1,N:14,Buf0/bitstring>>, Unit, Res) ->
+    Sz = N*Unit,
+    <<S:Sz/bitstring,Buf/bitstring>> = Buf0,
+    {<<Res/bitstring,S/bitstring>>,Buf};
+decode_fragmented_1(<<1:1,1:1,SegSz0:6,Buf0/bitstring>>, Unit, Res0) ->
+    SegSz = SegSz0 * Unit * ?'16K',
+    <<Frag:SegSz/bitstring,Buf/bitstring>> = Buf0,
+    Res = <<Res0/bitstring,Frag/bitstring>>,
+    decode_fragmented_1(Buf, Unit, Res).