diff options
Diffstat (limited to 'lib/erl_interface/src/decode/decode_trace.c')
| -rw-r--r-- | lib/erl_interface/src/decode/decode_trace.c | 51 |
1 files changed, 32 insertions, 19 deletions
diff --git a/lib/erl_interface/src/decode/decode_trace.c b/lib/erl_interface/src/decode/decode_trace.c index ebaa78e29e..738d6f0885 100644 --- a/lib/erl_interface/src/decode/decode_trace.c +++ b/lib/erl_interface/src/decode/decode_trace.c @@ -1,18 +1,19 @@ /* * %CopyrightBegin% * - * Copyright Ericsson AB 1998-2009. All Rights Reserved. + * Copyright Ericsson AB 1998-2016. 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. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. * * %CopyrightEnd% */ @@ -22,18 +23,30 @@ 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 */ + int tindex = *index; /* use a temporary index if any function should fail */ + long *p_flags, *p_label, *p_serial, *p_prev; + erlang_pid *p_from; + + if (p != NULL) { + p_flags = &p->flags; + p_label = &p->label; + p_serial = &p->serial; + p_prev = &p->prev; + p_from = &p->from; + } + else { + p_flags = p_label = p_serial = p_prev = NULL; + p_from = NULL; + } /* { 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; + || 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 */ |