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Diffstat (limited to 'erts/emulator/beam/bif.c')
-rw-r--r--erts/emulator/beam/bif.c205
1 files changed, 110 insertions, 95 deletions
diff --git a/erts/emulator/beam/bif.c b/erts/emulator/beam/bif.c
index ff7db0e742..a4c7af9a24 100644
--- a/erts/emulator/beam/bif.c
+++ b/erts/emulator/beam/bif.c
@@ -184,7 +184,7 @@ BIF_RETTYPE link_1(BIF_ALIST_1)
DistEntry *dep;
ErtsLink *lnk;
int code;
- ErtsDSigData dsd;
+ ErtsDSigSendContext ctx;
dep = external_pid_dist_entry(BIF_ARG_1);
if (dep == erts_this_dist_entry)
@@ -201,9 +201,9 @@ BIF_RETTYPE link_1(BIF_ALIST_1)
ldp = erts_link_to_data(lnk);
- code = erts_dsig_prepare(&dsd, dep, BIF_P,
+ code = erts_dsig_prepare(&ctx, dep, BIF_P,
ERTS_PROC_LOCK_MAIN,
- ERTS_DSP_RLOCK, 0, 1);
+ ERTS_DSP_RLOCK, 0, 1, 1);
switch (code) {
case ERTS_DSIG_PREP_NOT_ALIVE:
case ERTS_DSIG_PREP_NOT_CONNECTED:
@@ -222,9 +222,10 @@ BIF_RETTYPE link_1(BIF_ALIST_1)
ASSERT(inserted); (void)inserted;
erts_de_runlock(dep);
- code = erts_dsig_send_link(&dsd, BIF_P->common.id, BIF_ARG_1);
+ code = erts_dsig_send_link(&ctx, BIF_P->common.id, BIF_ARG_1);
if (code == ERTS_DSIG_SEND_YIELD)
ERTS_BIF_YIELD_RETURN(BIF_P, am_true);
+ ASSERT(code == ERTS_DSIG_SEND_OK);
BIF_RET(am_true);
break;
}
@@ -306,7 +307,7 @@ demonitor(Process *c_p, Eterm ref, Eterm *multip)
DistEntry *dep;
int code = ERTS_DSIG_SEND_OK;
int deleted;
- ErtsDSigData dsd;
+ ErtsDSigSendContext ctx;
ASSERT(is_external_pid(to) || is_node_name_atom(to));
@@ -322,8 +323,8 @@ demonitor(Process *c_p, Eterm ref, Eterm *multip)
}
}
- code = erts_dsig_prepare(&dsd, dep, c_p, ERTS_PROC_LOCK_MAIN,
- ERTS_DSP_RLOCK, 0, 0);
+ code = erts_dsig_prepare(&ctx, dep, c_p, ERTS_PROC_LOCK_MAIN,
+ ERTS_DSP_RLOCK, 0, 1, 0);
deleted = erts_monitor_dist_delete(&mdp->target);
@@ -352,8 +353,8 @@ demonitor(Process *c_p, Eterm ref, Eterm *multip)
* monitor list since in case of monitor name
* the atom is stored there. Yield if necessary.
*/
- code = erts_dsig_send_demonitor(&dsd, c_p->common.id,
- watched, mdp->ref, 0);
+ code = erts_dsig_send_demonitor(&ctx, c_p->common.id,
+ watched, mdp->ref);
break;
}
@@ -533,7 +534,7 @@ BIF_RETTYPE monitor_2(BIF_ALIST_2)
}
if (is_external_pid(target)) {
- ErtsDSigData dsd;
+ ErtsDSigSendContext ctx;
int code;
dep = external_pid_dist_entry(target);
@@ -551,9 +552,9 @@ BIF_RETTYPE monitor_2(BIF_ALIST_2)
BIF_P->common.id, id, name);
erts_monitor_tree_insert(&ERTS_P_MONITORS(BIF_P), &mdp->origin);
- code = erts_dsig_prepare(&dsd, dep,
+ code = erts_dsig_prepare(&ctx, dep,
BIF_P, ERTS_PROC_LOCK_MAIN,
- ERTS_DSP_RLOCK, 0, 1);
+ ERTS_DSP_RLOCK, 0, 1, 1);
switch (code) {
case ERTS_DSIG_PREP_NOT_ALIVE:
case ERTS_DSIG_PREP_NOT_CONNECTED:
@@ -568,7 +569,7 @@ BIF_RETTYPE monitor_2(BIF_ALIST_2)
ASSERT(inserted); (void)inserted;
erts_de_runlock(dep);
- code = erts_dsig_send_monitor(&dsd, BIF_P->common.id, target, ref);
+ code = erts_dsig_send_monitor(&ctx, BIF_P->common.id, target, ref);
break;
}
@@ -914,7 +915,7 @@ BIF_RETTYPE unlink_1(BIF_ALIST_1)
ErtsLinkData *ldp;
DistEntry *dep;
int code;
- ErtsDSigData dsd;
+ ErtsDSigSendContext ctx;
dep = external_pid_dist_entry(BIF_ARG_1);
if (dep == erts_this_dist_entry)
@@ -932,15 +933,15 @@ BIF_RETTYPE unlink_1(BIF_ALIST_1)
else
erts_link_release(lnk);
- code = erts_dsig_prepare(&dsd, dep, BIF_P, ERTS_PROC_LOCK_MAIN,
- ERTS_DSP_NO_LOCK, 0, 0);
+ code = erts_dsig_prepare(&ctx, dep, BIF_P, ERTS_PROC_LOCK_MAIN,
+ ERTS_DSP_NO_LOCK, 0, 1, 0);
switch (code) {
case ERTS_DSIG_PREP_NOT_ALIVE:
case ERTS_DSIG_PREP_NOT_CONNECTED:
BIF_RET(am_true);
case ERTS_DSIG_PREP_PENDING:
case ERTS_DSIG_PREP_CONNECTED:
- code = erts_dsig_send_unlink(&dsd, BIF_P->common.id, BIF_ARG_1);
+ code = erts_dsig_send_unlink(&ctx, BIF_P->common.id, BIF_ARG_1);
if (code == ERTS_DSIG_SEND_YIELD)
ERTS_BIF_YIELD_RETURN(BIF_P, am_true);
break;
@@ -1301,10 +1302,11 @@ static BIF_RETTYPE send_exit_signal_bif(Process *c_p, Eterm id, Eterm reason, in
ERTS_BIF_PREP_RET(ret_val, am_true); /* Old incarnation of this node... */
else {
int code;
- ErtsDSigData dsd;
+ ErtsDSigSendContext ctx;
+
+ code = erts_dsig_prepare(&ctx, dep, c_p, ERTS_PROC_LOCK_MAIN,
+ ERTS_DSP_NO_LOCK, 0, 0, 1);
- code = erts_dsig_prepare(&dsd, dep, c_p, ERTS_PROC_LOCK_MAIN,
- ERTS_DSP_NO_LOCK, 0, 1);
switch (code) {
case ERTS_DSIG_PREP_NOT_ALIVE:
case ERTS_DSIG_PREP_NOT_CONNECTED:
@@ -1312,11 +1314,29 @@ static BIF_RETTYPE send_exit_signal_bif(Process *c_p, Eterm id, Eterm reason, in
break;
case ERTS_DSIG_PREP_PENDING:
case ERTS_DSIG_PREP_CONNECTED:
- code = erts_dsig_send_exit2(&dsd, c_p->common.id, id, reason);
- if (code == ERTS_DSIG_SEND_YIELD)
+ code = erts_dsig_send_exit2(&ctx, c_p->common.id, id, reason);
+ switch (code) {
+ case ERTS_DSIG_SEND_YIELD:
ERTS_BIF_PREP_YIELD_RETURN(ret_val, c_p, am_true);
- else
+ break;
+ case ERTS_DSIG_SEND_CONTINUE:
+ BUMP_ALL_REDS(c_p);
+ erts_set_gc_state(c_p, 0);
+ ERTS_BIF_PREP_TRAP1(ret_val, &dsend_continue_trap_export, c_p,
+ erts_dsend_export_trap_context(c_p, &ctx));
+ break;
+ case ERTS_DSIG_SEND_OK:
ERTS_BIF_PREP_RET(ret_val, am_true);
+ break;
+ case ERTS_DSIG_SEND_TOO_LRG:
+ erts_set_gc_state(c_p, 1);
+ ERTS_BIF_PREP_ERROR(ret_val, c_p, SYSTEM_LIMIT);
+ break;
+ default:
+ ASSERT(! "Invalid dsig send exit2 result");
+ ERTS_BIF_PREP_ERROR(ret_val, c_p, EXC_INTERNAL_ERROR);
+ break;
+ }
break;
default:
ASSERT(! "Invalid dsig prepare result");
@@ -1800,33 +1820,36 @@ ebif_bang_2(BIF_ALIST_2)
static Sint remote_send(Process *p, DistEntry *dep,
- Eterm to, Eterm full_to, Eterm msg,
- ErtsSendContext* ctx)
+ Eterm to, Eterm node, Eterm full_to, Eterm msg,
+ Eterm return_term, Eterm *ctxpp,
+ int connect, int suspend)
{
Sint res;
int code;
+ ErtsDSigSendContext ctx;
ASSERT(is_atom(to) || is_external_pid(to));
- ctx->dep = dep;
- code = erts_dsig_prepare(&ctx->dsd, dep, p, ERTS_PROC_LOCK_MAIN,
+ code = erts_dsig_prepare(&ctx, dep, p, ERTS_PROC_LOCK_MAIN,
ERTS_DSP_NO_LOCK,
- !ctx->suspend, ctx->connect);
+ !suspend, 0, connect);
+ ctx.return_term = return_term;
+ ctx.node = node;
switch (code) {
case ERTS_DSIG_PREP_NOT_ALIVE:
case ERTS_DSIG_PREP_NOT_CONNECTED:
res = SEND_NOCONNECT;
break;
case ERTS_DSIG_PREP_WOULD_SUSPEND:
- ASSERT(!ctx->suspend);
+ ASSERT(!suspend);
res = SEND_YIELD;
break;
case ERTS_DSIG_PREP_PENDING:
case ERTS_DSIG_PREP_CONNECTED: {
if (is_atom(to))
- code = erts_dsig_send_reg_msg(to, msg, ctx);
+ code = erts_dsig_send_reg_msg(&ctx, to, msg);
else
- code = erts_dsig_send_msg(to, msg, ctx);
+ code = erts_dsig_send_msg(&ctx, to, msg);
/*
* Note that reductions have been bumped on calling
* process by erts_dsig_send_reg_msg() or
@@ -1834,9 +1857,19 @@ static Sint remote_send(Process *p, DistEntry *dep,
*/
if (code == ERTS_DSIG_SEND_YIELD)
res = SEND_YIELD_RETURN;
- else if (code == ERTS_DSIG_SEND_CONTINUE)
+ else if (code == ERTS_DSIG_SEND_CONTINUE) {
+ erts_set_gc_state(p, 0);
+
+ /* Keep a reference to the dist entry if the
+ name is an not a pid. */
+ if (is_atom(to)) {
+ erts_ref_dist_entry(ctx.dep);
+ ctx.deref_dep = 1;
+ }
+
+ *ctxpp = erts_dsend_export_trap_context(p, &ctx);
res = SEND_YIELD_CONTINUE;
- else if (code == ERTS_DSIG_SEND_TOO_LRG)
+ } else if (code == ERTS_DSIG_SEND_TOO_LRG)
res = SEND_SYSTEM_LIMIT;
else
res = 0;
@@ -1858,7 +1891,8 @@ static Sint remote_send(Process *p, DistEntry *dep,
}
static Sint
-do_send(Process *p, Eterm to, Eterm msg, Eterm *refp, ErtsSendContext *ctx)
+do_send(Process *p, Eterm to, Eterm msg, Eterm return_term, Eterm *refp,
+ Eterm *dist_ctx, int connect, int suspend)
{
Eterm portid;
Port *pt;
@@ -1890,7 +1924,8 @@ do_send(Process *p, Eterm to, Eterm msg, Eterm *refp, ErtsSendContext *ctx)
erts_send_error_to_logger(p->group_leader, dsbufp);
return 0;
}
- return remote_send(p, dep, to, to, msg, ctx);
+ return remote_send(p, dep, to, dep->sysname, to, msg, return_term,
+ dist_ctx, connect, suspend);
} else if (is_atom(to)) {
Eterm id = erts_whereis_name_to_id(p, to);
@@ -1945,7 +1980,7 @@ do_send(Process *p, Eterm to, Eterm msg, Eterm *refp, ErtsSendContext *ctx)
ret_val = 0;
if (pt) {
- int ps_flags = ctx->suspend ? 0 : ERTS_PORT_SIG_FLG_NOSUSPEND;
+ int ps_flags = suspend ? 0 : ERTS_PORT_SIG_FLG_NOSUSPEND;
*refp = NIL;
if (IS_TRACED_FL(p, F_TRACE_SEND)) /* trace once only !! */
@@ -1960,12 +1995,12 @@ do_send(Process *p, Eterm to, Eterm msg, Eterm *refp, ErtsSendContext *ctx)
switch (erts_port_command(p, ps_flags, pt, msg, refp)) {
case ERTS_PORT_OP_BUSY:
/* Nothing has been sent */
- if (ctx->suspend)
+ if (suspend)
erts_suspend(p, ERTS_PROC_LOCK_MAIN, pt);
return SEND_YIELD;
case ERTS_PORT_OP_BUSY_SCHEDULED:
/* Message was sent */
- if (ctx->suspend) {
+ if (suspend) {
erts_suspend(p, ERTS_PROC_LOCK_MAIN, pt);
ret_val = SEND_YIELD_RETURN;
break;
@@ -2036,13 +2071,10 @@ do_send(Process *p, Eterm to, Eterm msg, Eterm *refp, ErtsSendContext *ctx)
ASSERT(dep != erts_this_dist_entry);
deref_dep = 1;
}
- ctx->dsd.node = tp[2];
- ret = remote_send(p, dep, tp[1], to, msg, ctx);
- if (ret == SEND_YIELD_CONTINUE) {
- erts_ref_dist_entry(ctx->dep);
- ctx->deref_dep = 1;
- }
+ ret = remote_send(p, dep, tp[1], tp[2], to, msg, return_term,
+ dist_ctx, connect, suspend);
+
if (deref_dep)
erts_deref_dist_entry(dep);
return ret;
@@ -2081,25 +2113,16 @@ BIF_RETTYPE send_3(BIF_ALIST_3)
Eterm l = opts;
Sint result;
-
- DeclareTypedTmpHeap(ErtsSendContext, ctx, BIF_P);
+ int connect = 1, suspend = 1;
+ Eterm ctx;
ERTS_MSACC_PUSH_STATE_M_X();
- UseTmpHeap(sizeof(ErtsSendContext)/sizeof(Eterm), BIF_P);
-
- ctx->suspend = !0;
- ctx->connect = !0;
- ctx->deref_dep = 0;
- ctx->return_term = am_ok;
- ctx->dss.reds = (Sint) (ERTS_BIF_REDS_LEFT(p) * TERM_TO_BINARY_LOOP_FACTOR);
- ctx->dss.phase = ERTS_DSIG_SEND_PHASE_INIT;
-
while (is_list(l)) {
if (CAR(list_val(l)) == am_noconnect) {
- ctx->connect = 0;
+ connect = 0;
} else if (CAR(list_val(l)) == am_nosuspend) {
- ctx->suspend = 0;
+ suspend = 0;
} else {
ERTS_BIF_PREP_ERROR(retval, p, BADARG);
goto done;
@@ -2116,7 +2139,7 @@ BIF_RETTYPE send_3(BIF_ALIST_3)
#endif
ERTS_MSACC_SET_STATE_CACHED_M_X(ERTS_MSACC_STATE_SEND);
- result = do_send(p, to, msg, &ref, ctx);
+ result = do_send(p, to, msg, am_ok, &ref, &ctx, connect, suspend);
ERTS_MSACC_POP_STATE_M_X();
if (result >= 0) {
@@ -2129,22 +2152,21 @@ BIF_RETTYPE send_3(BIF_ALIST_3)
switch (result) {
case SEND_NOCONNECT:
- if (ctx->connect) {
+ if (connect) {
ERTS_BIF_PREP_RET(retval, am_ok);
} else {
ERTS_BIF_PREP_RET(retval, am_noconnect);
}
break;
case SEND_YIELD:
- if (ctx->suspend) {
- ERTS_BIF_PREP_YIELD3(retval,
- bif_export[BIF_send_3], p, to, msg, opts);
+ if (suspend) {
+ ERTS_BIF_PREP_YIELD3(retval, bif_export[BIF_send_3], p, to, msg, opts);
} else {
ERTS_BIF_PREP_RET(retval, am_nosuspend);
}
break;
case SEND_YIELD_RETURN:
- if (!ctx->suspend) {
+ if (!suspend) {
ERTS_BIF_PREP_RET(retval, am_nosuspend);
break;
}
@@ -2169,9 +2191,7 @@ BIF_RETTYPE send_3(BIF_ALIST_3)
break;
case SEND_YIELD_CONTINUE:
BUMP_ALL_REDS(p);
- erts_set_gc_state(p, 0);
- ERTS_BIF_PREP_TRAP1(retval, &dsend_continue_trap_export, p,
- erts_dsend_export_trap_context(p, ctx));
+ ERTS_BIF_PREP_TRAP1(retval, &dsend_continue_trap_export, p, ctx);
break;
default:
erts_exit(ERTS_ABORT_EXIT, "send_3 invalid result %d\n", (int)result);
@@ -2179,7 +2199,6 @@ BIF_RETTYPE send_3(BIF_ALIST_3)
}
done:
- UnUseTmpHeap(sizeof(ErtsSendContext)/sizeof(Eterm), BIF_P);
return retval;
}
@@ -2193,14 +2212,14 @@ BIF_RETTYPE send_2(BIF_ALIST_2)
static BIF_RETTYPE dsend_continue_trap_1(BIF_ALIST_1)
{
Binary* bin = erts_magic_ref2bin(BIF_ARG_1);
- ErtsSendContext* ctx = (ErtsSendContext*) ERTS_MAGIC_BIN_DATA(bin);
+ ErtsDSigSendContext *ctx = (ErtsDSigSendContext*) ERTS_MAGIC_BIN_DATA(bin);
Sint initial_reds = (Sint) (ERTS_BIF_REDS_LEFT(BIF_P) * TERM_TO_BINARY_LOOP_FACTOR);
int result;
ASSERT(ERTS_MAGIC_BIN_DESTRUCTOR(bin) == erts_dsend_context_dtor);
- ctx->dss.reds = initial_reds;
- result = erts_dsig_send(&ctx->dsd, &ctx->dss);
+ ctx->reds = initial_reds;
+ result = erts_dsig_send(ctx);
switch (result) {
case ERTS_DSIG_SEND_OK:
@@ -2209,7 +2228,7 @@ static BIF_RETTYPE dsend_continue_trap_1(BIF_ALIST_1)
break;
case ERTS_DSIG_SEND_YIELD: /*SEND_YIELD_RETURN*/
erts_set_gc_state(BIF_P, 1);
- if (!ctx->suspend)
+ if (ctx->no_suspend)
BIF_RET(am_nosuspend);
ERTS_BIF_YIELD_RETURN(BIF_P, ctx->return_term);
@@ -2234,20 +2253,14 @@ Eterm erl_send(Process *p, Eterm to, Eterm msg)
Eterm retval;
Eterm ref;
Sint result;
- DeclareTypedTmpHeap(ErtsSendContext, ctx, p);
+ Eterm ctx;
ERTS_MSACC_PUSH_AND_SET_STATE_M_X(ERTS_MSACC_STATE_SEND);
- UseTmpHeap(sizeof(ErtsSendContext)/sizeof(Eterm), p);
+
#ifdef DEBUG
ref = NIL;
#endif
- ctx->suspend = !0;
- ctx->connect = !0;
- ctx->deref_dep = 0;
- ctx->return_term = msg;
- ctx->dss.reds = (Sint) (ERTS_BIF_REDS_LEFT(p) * TERM_TO_BINARY_LOOP_FACTOR);
- ctx->dss.phase = ERTS_DSIG_SEND_PHASE_INIT;
- result = do_send(p, to, msg, &ref, ctx);
+ result = do_send(p, to, msg, msg, &ref, &ctx, 1, 1);
ERTS_MSACC_POP_STATE_M_X();
@@ -2289,9 +2302,7 @@ Eterm erl_send(Process *p, Eterm to, Eterm msg)
break;
case SEND_YIELD_CONTINUE:
BUMP_ALL_REDS(p);
- erts_set_gc_state(p, 0);
- ERTS_BIF_PREP_TRAP1(retval, &dsend_continue_trap_export, p,
- erts_dsend_export_trap_context(p, ctx));
+ ERTS_BIF_PREP_TRAP1(retval, &dsend_continue_trap_export, p, ctx);
break;
default:
erts_exit(ERTS_ABORT_EXIT, "invalid send result %d\n", (int)result);
@@ -2299,7 +2310,6 @@ Eterm erl_send(Process *p, Eterm to, Eterm msg)
}
done:
- UnUseTmpHeap(sizeof(ErtsSendContext)/sizeof(Eterm), p);
return retval;
}
@@ -4053,10 +4063,12 @@ BIF_RETTYPE list_to_pid_1(BIF_ALIST_1)
if (is_nil(dep->cid))
goto bad;
- enp = erts_find_or_insert_node(dep->sysname, dep->creation);
+ etp = (ExternalThing *) HAlloc(BIF_P, EXTERNAL_THING_HEAD_SIZE + 1);
+
+ enp = erts_find_or_insert_node(dep->sysname, dep->creation,
+ make_boxed(&etp->header));
ASSERT(enp != erts_this_node);
- etp = (ExternalThing *) HAlloc(BIF_P, EXTERNAL_THING_HEAD_SIZE + 1);
etp->header = make_external_pid_header(1);
etp->next = MSO(BIF_P).first;
etp->node = enp;
@@ -4120,10 +4132,11 @@ BIF_RETTYPE list_to_port_1(BIF_ALIST_1)
if (is_nil(dep->cid))
goto bad;
- enp = erts_find_or_insert_node(dep->sysname, dep->creation);
+ etp = (ExternalThing *) HAlloc(BIF_P, EXTERNAL_THING_HEAD_SIZE + 1);
+ enp = erts_find_or_insert_node(dep->sysname, dep->creation,
+ make_boxed(&etp->header));
ASSERT(enp != erts_this_node);
- etp = (ExternalThing *) HAlloc(BIF_P, EXTERNAL_THING_HEAD_SIZE + 1);
etp->header = make_external_port_header(1);
etp->next = MSO(BIF_P).first;
etp->node = enp;
@@ -4226,9 +4239,6 @@ BIF_RETTYPE list_to_ref_1(BIF_ALIST_1)
if (is_nil(dep->cid))
goto bad;
- enp = erts_find_or_insert_node(dep->sysname, dep->creation);
- ASSERT(enp != erts_this_node);
-
hsz = EXTERNAL_THING_HEAD_SIZE;
#if defined(ARCH_64)
hsz += n/2 + 1;
@@ -4237,6 +4247,11 @@ BIF_RETTYPE list_to_ref_1(BIF_ALIST_1)
#endif
etp = (ExternalThing *) HAlloc(BIF_P, hsz);
+
+ enp = erts_find_or_insert_node(dep->sysname, dep->creation,
+ make_boxed(&etp->header));
+ ASSERT(enp != erts_this_node);
+
etp->header = make_external_ref_header(n/2);
etp->next = BIF_P->off_heap.first;
etp->node = enp;
@@ -4356,21 +4371,21 @@ BIF_RETTYPE erts_internal_group_leader_2(BIF_ALIST_2)
if (is_external_pid(BIF_ARG_2)) {
DistEntry *dep;
int code;
- ErtsDSigData dsd;
+ ErtsDSigSendContext ctx;
dep = external_pid_dist_entry(BIF_ARG_2);
ERTS_ASSERT(dep);
if(dep == erts_this_dist_entry)
BIF_ERROR(BIF_P, BADARG);
- code = erts_dsig_prepare(&dsd, dep, BIF_P, ERTS_PROC_LOCK_MAIN,
- ERTS_DSP_NO_LOCK, 0, 1);
+ code = erts_dsig_prepare(&ctx, dep, BIF_P, ERTS_PROC_LOCK_MAIN,
+ ERTS_DSP_NO_LOCK, 0, 1, 1);
switch (code) {
case ERTS_DSIG_PREP_NOT_ALIVE:
case ERTS_DSIG_PREP_NOT_CONNECTED:
BIF_RET(am_true);
case ERTS_DSIG_PREP_PENDING:
case ERTS_DSIG_PREP_CONNECTED:
- code = erts_dsig_send_group_leader(&dsd, BIF_ARG_1, BIF_ARG_2);
+ code = erts_dsig_send_group_leader(&ctx, BIF_ARG_1, BIF_ARG_2);
if (code == ERTS_DSIG_SEND_YIELD)
ERTS_BIF_YIELD_RETURN(BIF_P, am_true);
BIF_RET(am_true);