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authorLukas Larsson <[email protected]>2016-05-19 10:54:43 +0200
committerLukas Larsson <[email protected]>2016-05-24 10:42:16 +0200
commit115f0ba77ad7d01ab95fd9f9bbeca53f04f12284 (patch)
treec7134ee895b23d8160440cec7dd1598b1f689de3 /erts/emulator/nifs/common
parent0bc0e3e51a4229245c4111667eec9133a1a8984c (diff)
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erts: Move tracer SecondTraceTerm to Opts map
The extra trace data has been moved to the opts map in order for the tracer to be able to distinguish inbetween extra trace data 'undefined' and no extra trace data. In the same commit all opts associations have been changed so that if the tracer should not use them, the key is left unassicated instead of being sent to undefined. This should be give a small performance gain and also makes the API easier to work with.
Diffstat (limited to 'erts/emulator/nifs/common')
-rw-r--r--erts/emulator/nifs/common/erl_tracer_nif.c34
1 files changed, 15 insertions, 19 deletions
diff --git a/erts/emulator/nifs/common/erl_tracer_nif.c b/erts/emulator/nifs/common/erl_tracer_nif.c
index 6dddc80607..c0cc48ff42 100644
--- a/erts/emulator/nifs/common/erl_tracer_nif.c
+++ b/erts/emulator/nifs/common/erl_tracer_nif.c
@@ -45,7 +45,7 @@ static ERL_NIF_TERM trace(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]);
static ErlNifFunc nif_funcs[] = {
{"enabled", 3, enabled},
- {"trace", 6, trace}
+ {"trace", 5, trace}
};
@@ -57,6 +57,7 @@ ERL_NIF_INIT(erl_tracer, nif_funcs, load, NULL, upgrade, unload)
ATOM_DECL(cpu_timestamp); \
ATOM_DECL(discard); \
ATOM_DECL(exception_from); \
+ ATOM_DECL(extra); \
ATOM_DECL(match_spec_result); \
ATOM_DECL(monotonic); \
ATOM_DECL(ok); \
@@ -76,8 +77,7 @@ ERL_NIF_INIT(erl_tracer, nif_funcs, load, NULL, upgrade, unload)
ATOM_DECL(gc_minor_start); \
ATOM_DECL(gc_minor_end); \
ATOM_DECL(gc_major_start); \
- ATOM_DECL(gc_major_end); \
- ATOM_DECL(undefined);
+ ATOM_DECL(gc_major_end);
#define ATOM_DECL(A) static ERL_NIF_TERM atom_##A
ATOMS
@@ -154,11 +154,6 @@ static ERL_NIF_TERM enabled(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[])
Tracee :: pid() || port() || undefined,
Msg :: term(),
Opts :: map()) -> ignored().
- -spec trace(Tag :: atom(), TracerState :: pid() | port(),
- Tracee :: pid() || port() || undefined,
- Msg :: term(),
- Extra :: term(),
- Opts :: map()) -> ignored().
*/
static ERL_NIF_TERM trace(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[])
{
@@ -167,7 +162,8 @@ static ERL_NIF_TERM trace(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[])
ErlNifPort to_port;
size_t tt_sz = 0;
int is_port = 0;
- ASSERT(argc == 6);
+ size_t opts_sz = 0;
+ ASSERT(argc == 5);
if (!enif_get_local_pid(env, argv[1], &to_pid)) {
if (!enif_get_local_port(env, argv[1], &to_port)) {
@@ -179,12 +175,17 @@ static ERL_NIF_TERM trace(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[])
is_port = 1;
}
- if (!enif_is_identical(argv[4], atom_undefined)) {
+ opts = argv[4];
+
+ if (!enif_get_map_size(env, opts, &opts_sz))
+ opts_sz = 0;
+
+ if (opts_sz && enif_get_map_value(env, opts, atom_extra, &value)) {
tt[tt_sz++] = atom_trace;
tt[tt_sz++] = argv[2];
tt[tt_sz++] = argv[0];
tt[tt_sz++] = argv[3];
- tt[tt_sz++] = argv[4];
+ tt[tt_sz++] = value;
} else {
if (enif_is_identical(argv[0], atom_seq_trace)) {
tt[tt_sz++] = atom_seq_trace;
@@ -198,21 +199,16 @@ static ERL_NIF_TERM trace(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[])
}
}
- opts = argv[5];
- if (enif_get_map_value(env, opts, atom_match_spec_result,
- &value)
- && !enif_is_identical(value, atom_true)) {
+ if (opts_sz && enif_get_map_value(env, opts, atom_match_spec_result, &value)) {
tt[tt_sz++] = value;
}
- if (enif_get_map_value(env, opts, atom_scheduler_id, &value)
- && !enif_is_identical(value, atom_undefined)) {
+ if (opts_sz && enif_get_map_value(env, opts, atom_scheduler_id, &value)) {
tt[tt_sz++] = value;
}
- if (enif_get_map_value(env, opts, atom_timestamp, &value)
- && !enif_is_identical(value, atom_undefined)) {
+ if (opts_sz && enif_get_map_value(env, opts, atom_timestamp, &value)) {
ERL_NIF_TERM ts;
if (enif_is_identical(value, atom_monotonic)) {
ErlNifTime mon = enif_monotonic_time(ERL_NIF_NSEC);