From 060bd359237cdb629abba03620323c0ed8084910 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Bj=C3=B6rn=20Gustavsson?= Date: Tue, 28 May 2013 06:49:38 +0200 Subject: Refactor encoding of REAL To facilitate optimizing PER encoding using an intermediate format, we must change asn1rtt_real_common:encode_real/1 so that it only returns the encoded binary. --- lib/asn1/src/asn1ct_func.erl | 2 ++ lib/asn1/src/asn1ct_gen_ber_bin_v2.erl | 12 ++++++++++-- lib/asn1/src/asn1ct_gen_per.erl | 6 ++++-- lib/asn1/src/asn1ct_gen_per_rt2ct.erl | 6 ++++-- lib/asn1/src/asn1rtt_ber.erl | 3 +-- lib/asn1/src/asn1rtt_real_common.erl | 6 ++---- 6 files changed, 23 insertions(+), 12 deletions(-) (limited to 'lib') diff --git a/lib/asn1/src/asn1ct_func.erl b/lib/asn1/src/asn1ct_func.erl index ddc00809aa..2948269bfc 100644 --- a/lib/asn1/src/asn1ct_func.erl +++ b/lib/asn1/src/asn1ct_func.erl @@ -32,6 +32,8 @@ call(M, F, Args) -> need(MFA), asn1ct_gen:emit([F,"(",call_args(Args, ""),")"]). +need({erlang,_,_}) -> + ok; need(MFA) -> asn1ct_rtt:assert_defined(MFA), cast({need,MFA}). diff --git a/lib/asn1/src/asn1ct_gen_ber_bin_v2.erl b/lib/asn1/src/asn1ct_gen_ber_bin_v2.erl index 8ab49aec2c..229a22b2ad 100644 --- a/lib/asn1/src/asn1ct_gen_ber_bin_v2.erl +++ b/lib/asn1/src/asn1ct_gen_ber_bin_v2.erl @@ -196,8 +196,16 @@ gen_encode_prim(_Erules, #type{}=D, DoTag, Value) -> emit(["case ",Value," of",nl]), emit_enc_enumerated_cases(NamedNumberList,DoTag); 'REAL' -> - emit([{call,ber,encode_tags, - [DoTag,{call,real_common,ber_encode_real,[Value]}]}]); + asn1ct_name:new(realval), + asn1ct_name:new(realsize), + emit(["begin",nl, + {curr,realval}," = ", + {call,real_common,ber_encode_real,[Value]},com,nl, + {curr,realsize}," = ", + {call,erlang,byte_size,[{curr,realval}]},com,nl, + {call,ber,encode_tags, + [DoTag,{curr,realval},{curr,realsize}]},nl, + "end"]); {'BIT STRING',NamedNumberList} -> call(encode_bit_string, [{asis,BitStringConstraint},Value, diff --git a/lib/asn1/src/asn1ct_gen_per.erl b/lib/asn1/src/asn1ct_gen_per.erl index 69d9d51bf1..a3c1f01961 100644 --- a/lib/asn1/src/asn1ct_gen_per.erl +++ b/lib/asn1/src/asn1ct_gen_per.erl @@ -215,9 +215,11 @@ emit_enc_real(Erules, Real) -> asn1ct_name:new(tmpval), asn1ct_name:new(tmplen), emit(["begin",nl, - "{",{curr,tmpval},com,{curr,tmplen},"} = ", + {curr,tmpval}," = ", {call,real_common,encode_real,[Real]},com,nl, - "[",{call,Erules,encode_length,[{curr,tmplen}]},",", + {curr,tmplen}," = ", + {call,erlang,byte_size,[{curr,tmpval}]},com,nl, + "[",{call,Erules,encode_length,[{curr,tmplen}]},com,nl, {curr,tmpval},"]",nl, "end"]). diff --git a/lib/asn1/src/asn1ct_gen_per_rt2ct.erl b/lib/asn1/src/asn1ct_gen_per_rt2ct.erl index 012d54e7a1..6c0bd95eef 100644 --- a/lib/asn1/src/asn1ct_gen_per_rt2ct.erl +++ b/lib/asn1/src/asn1ct_gen_per_rt2ct.erl @@ -122,9 +122,11 @@ emit_enc_real(Erules, Real) -> asn1ct_name:new(tmpval), asn1ct_name:new(tmplen), emit(["begin",nl, - "{",{curr,tmpval},com,{curr,tmplen},"} = ", + {curr,tmpval}," = ", {call,real_common,encode_real,[Real]},com,nl, - "[",{call,Erules,encode_length,[{curr,tmplen}]},",",nl, + {curr,tmplen}," = ", + {call,erlang,byte_size,[{curr,tmpval}]},com,nl, + "[",{call,Erules,encode_length,[{curr,tmplen}]},com,nl, {call,Erules,octets_to_complete, [{curr,tmplen},{curr,tmpval}]},"]",nl, "end"]). diff --git a/lib/asn1/src/asn1rtt_ber.erl b/lib/asn1/src/asn1rtt_ber.erl index b5429fe324..583ff790b7 100644 --- a/lib/asn1/src/asn1rtt_ber.erl +++ b/lib/asn1/src/asn1rtt_ber.erl @@ -22,8 +22,7 @@ %% encoding / decoding of BER -export([ber_decode_nif/1,ber_decode_erlang/1,match_tags/2,ber_encode/1]). --export([encode_tags/2, - encode_tags/3, +-export([encode_tags/3, skip_ExtensionAdditions/2]). -export([encode_boolean/2,decode_boolean/2, encode_integer/2,encode_integer/3, diff --git a/lib/asn1/src/asn1rtt_real_common.erl b/lib/asn1/src/asn1rtt_real_common.erl index 22a1f4c4dd..12ca165ecd 100644 --- a/lib/asn1/src/asn1rtt_real_common.erl +++ b/lib/asn1/src/asn1rtt_real_common.erl @@ -105,8 +105,7 @@ encode_real(_C, {Mantissa, Base, Exponent}) when Base =:= 2 -> true -> list_to_binary(real_mininum_octets(-(Man))) % signbit keeps track of sign end, %% ok = io:format("LenMask: ~w EOctets: ~w~nFirstOctet: ~w OctMantissa: ~w OctExpLen: ~w~n", [LenMask, EOctets, FirstOctet, OctMantissa, OctExpLen]), - Bin = <>, - {Bin, size(Bin)}; + <>; encode_real(C, {Mantissa,Base,Exponent}) when Base =:= 10, is_integer(Mantissa), is_integer(Exponent) -> %% always encode as NR3 due to DER on the format @@ -176,8 +175,7 @@ encode_real_as_string(_C, Mantissa, Exponent) end, ManBin = list_to_binary(TruncMant), NR3 = 3, - {<>, - 2 + byte_size(ManBin) + byte_size(ExpBin)}. + <>. remove_trailing_zeros(IntStr) -> case lists:dropwhile(fun($0)-> true; -- cgit v1.2.3