diff options
Diffstat (limited to 'erts/doc/src/erl_tracer.xml')
| -rw-r--r-- | erts/doc/src/erl_tracer.xml | 19 |
1 files changed, 11 insertions, 8 deletions
diff --git a/erts/doc/src/erl_tracer.xml b/erts/doc/src/erl_tracer.xml index 83eef374ca..fd3c17f337 100644 --- a/erts/doc/src/erl_tracer.xml +++ b/erts/doc/src/erl_tracer.xml @@ -4,7 +4,7 @@ <erlref> <header> <copyright> - <year>2016</year><year>2016</year> + <year>2016</year><year>2017</year> <holder>Ericsson AB. All Rights Reserved.</holder> </copyright> <legalnotice> @@ -103,7 +103,7 @@ <item>If set the tracer has been requested to include a time stamp.</item> <tag><c>extra</c></tag> - <item>If set the tracepoint has included additonal data about + <item>If set the tracepoint has included additional data about the trace event. What the additional data is depends on which <c>TraceTag</c> has been triggered. The <c>extra</c> trace data corresponds to the fifth element in the trace tuples described in @@ -653,7 +653,7 @@ ok <0.37.0> 3> erlang:trace(new, true, [send,{tracer, erl_msg_tracer, Tracer}]). 0 -{<0.39.0>,<0.27.0>} +{trace,<0.39.0>,<0.27.0>} 4> {ok, D} = file:open("/tmp/tmp.data",[write]). {trace,#Port<0.486>,<0.40.0>} {trace,<0.40.0>,<0.21.0>} @@ -684,7 +684,7 @@ trace(_, _, _, _, _) -> <p><c>erl_msg_tracer.c</c>:</p> <pre> -#include "erl_nif.h" +#include <erl_nif.h> /* NIF interface declarations */ static int load(ErlNifEnv* env, void** priv_data, ERL_NIF_TERM load_info); @@ -758,18 +758,21 @@ static ERL_NIF_TERM enabled(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]) /* * argv[0]: TraceTag, should only be 'send' - * argv[1]: TracerState, process to send {argv[2], argv[4]} to + * argv[1]: TracerState, process to send {Tracee, Recipient} to * argv[2]: Tracee - * argv[3]: Recipient - * argv[4]: Options, ignored + * argv[3]: Message + * argv[4]: Options, map containing Recipient */ static ERL_NIF_TERM trace(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]) { ErlNifPid to_pid; + ERL_NIF_TERM recipient, msg; if (enif_get_local_pid(env, argv[1], &to_pid)) { - ERL_NIF_TERM msg = enif_make_tuple3(env, enif_make_atom(env, "trace"), argv[2], argv[4]); + if (enif_get_map_value(env, argv[4], enif_make_atom(env, "extra"), &recipient)) { + msg = enif_make_tuple3(env, enif_make_atom(env, "trace"), argv[2], recipient); enif_send(env, &to_pid, NULL, msg); + } } return enif_make_atom(env, "ok"); |