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authorRickard Green <[email protected]>2018-03-21 11:54:28 +0100
committerGitHub <[email protected]>2018-03-21 11:54:28 +0100
commitcf3cbf0871832cb0808293842e5ae726edfc12e1 (patch)
treecd67d38d40c3414275ec257a6685b86c949c621a /erts/emulator/beam/break.c
parent2c5711efcdd48ab8a9b7cd9ae27c97b9c1f8c37e (diff)
parent4bc282d812cc2c49aa3e2d073e96c720f16aa270 (diff)
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Merge pull request #1740 from rickard-green/rickard/signals/OTP-14589
Implementation of true asynchronous signaling between processes
Diffstat (limited to 'erts/emulator/beam/break.c')
-rw-r--r--erts/emulator/beam/break.c137
1 files changed, 69 insertions, 68 deletions
diff --git a/erts/emulator/beam/break.c b/erts/emulator/beam/break.c
index 3967f7f7fc..4dabac3512 100644
--- a/erts/emulator/beam/break.c
+++ b/erts/emulator/beam/break.c
@@ -1,7 +1,7 @@
/*
* %CopyrightBegin%
*
- * Copyright Ericsson AB 1996-2017. All Rights Reserved.
+ * Copyright Ericsson AB 1996-2018. All Rights Reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
@@ -39,6 +39,7 @@
#include "erl_instrument.h"
#include "erl_hl_timer.h"
#include "erl_thr_progress.h"
+#include "erl_proc_sig_queue.h"
/* Forward declarations -- should really appear somewhere else */
static void process_killer(void);
@@ -107,36 +108,11 @@ process_killer(void)
if ((j = sys_get_key(0)) <= 0)
erts_exit(0, "");
switch(j) {
- case 'k': {
- ErtsProcLocks rp_locks = ERTS_PROC_LOCKS_XSIG_SEND;
- erts_aint32_t state;
- erts_proc_inc_refc(rp);
- erts_proc_lock(rp, rp_locks);
- state = erts_atomic32_read_acqb(&rp->state);
- if (state & (ERTS_PSFLG_FREE
- | ERTS_PSFLG_EXITING
- | ERTS_PSFLG_ACTIVE
- | ERTS_PSFLG_ACTIVE_SYS
- | ERTS_PSFLG_IN_RUNQ
- | ERTS_PSFLG_RUNNING
- | ERTS_PSFLG_RUNNING_SYS
- | ERTS_PSFLG_DIRTY_RUNNING
- | ERTS_PSFLG_DIRTY_RUNNING_SYS)) {
- erts_printf("Can only kill WAITING processes this way\n");
- }
- else {
- (void) erts_send_exit_signal(NULL,
- NIL,
- rp,
- &rp_locks,
- am_kill,
- NIL,
- NULL,
- 0);
- }
- erts_proc_unlock(rp, rp_locks);
- erts_proc_dec_refc(rp);
- }
+ case 'k':
+ /* Send a 'kill' exit signal from init process */
+ erts_proc_sig_send_exit(NULL, erts_init_process_id,
+ rp->common.id, am_kill, NIL,
+ 0);
case 'n': br = 1; break;
case 'r': return;
default: return;
@@ -161,47 +137,64 @@ static void doit_print_link(ErtsLink *lnk, void *vpcontext)
if (pcontext->is_first) {
pcontext->is_first = 0;
- erts_print(to, to_arg, "%T", lnk->pid);
+ erts_print(to, to_arg, "%T", lnk->other.item);
} else {
- erts_print(to, to_arg, ", %T", lnk->pid);
+ erts_print(to, to_arg, ", %T", lnk->other.item);
}
}
static void doit_print_monitor(ErtsMonitor *mon, void *vpcontext)
{
+ ErtsMonitorData *mdp;
PrintMonitorContext *pcontext = vpcontext;
fmtfn_t to = pcontext->to;
void *to_arg = pcontext->to_arg;
char *prefix = ", ";
- if (pcontext->is_first) {
- pcontext->is_first = 0;
- prefix = "";
- }
-
+ mdp = erts_monitor_to_data(mon);
switch (mon->type) {
- case MON_ORIGIN:
- if (is_atom(mon->u.pid)) { /* dist by name */
- ASSERT(is_node_name_atom(mon->u.pid));
- erts_print(to, to_arg, "%s{to,{%T,%T},%T}", prefix, mon->name,
- mon->u.pid, mon->ref);
- } else if (is_atom(mon->name)){ /* local by name */
- erts_print(to, to_arg, "%s{to,{%T,%T},%T}", prefix, mon->name,
- erts_this_dist_entry->sysname, mon->ref);
- } else { /* local and distributed by pid */
- erts_print(to, to_arg, "%s{to,%T,%T}", prefix, mon->u.pid, mon->ref);
- }
- break;
- case MON_TARGET:
- erts_print(to, to_arg, "%s{from,%T,%T}", prefix, mon->u.pid, mon->ref);
- break;
- case MON_NIF_TARGET: {
- ErtsResource* rsrc = mon->u.resource;
- erts_print(to, to_arg, "%s{from,{%T,%T},%T}", prefix, rsrc->type->module,
- rsrc->type->name, mon->ref);
- break;
- }
+ case ERTS_MON_TYPE_PROC:
+ case ERTS_MON_TYPE_PORT:
+ case ERTS_MON_TYPE_TIME_OFFSET:
+ case ERTS_MON_TYPE_DIST_PROC:
+ case ERTS_MON_TYPE_RESOURCE:
+ case ERTS_MON_TYPE_NODE:
+
+ if (pcontext->is_first) {
+ pcontext->is_first = 0;
+ prefix = "";
+ }
+
+ if (erts_monitor_is_target(mon)) {
+ if (mon->type != ERTS_MON_TYPE_RESOURCE)
+ erts_print(to, to_arg, "%s{from,%T,%T}", prefix, mon->other.item, mdp->ref);
+ else {
+ ErtsResource* rsrc = mon->other.ptr;
+ erts_print(to, to_arg, "%s{from,{%T,%T},%T}", prefix, rsrc->type->module,
+ rsrc->type->name, mdp->ref);
+ }
+ }
+ else {
+ if (!(mon->flags & ERTS_ML_FLG_NAME))
+ erts_print(to, to_arg, "%s{to,%T,%T}", prefix, mon->other.item, mdp->ref);
+ else {
+ ErtsMonitorDataExtended *mdep = (ErtsMonitorDataExtended *) mdp;
+ Eterm node;
+ if (mdep->dist)
+ node = mdep->dist->nodename;
+ else
+ node = erts_this_dist_entry->sysname;
+ erts_print(to, to_arg, "%s{to,{%T,%T},%T}", prefix, mdep->u.name,
+ node, mdp->ref);
+ }
+ }
+
+ break;
+
+ default:
+ /* ignore other monitors... */
+ break;
}
}
@@ -257,15 +250,22 @@ print_process_info(fmtfn_t to, void *to_arg, Process *p)
}
erts_print(to, to_arg, "Spawned by: %T\n", p->parent);
- ERTS_MSGQ_MV_INQ2PRIVQ(p);
- erts_print(to, to_arg, "Message queue length: %d\n", p->msg.len);
+
+ erts_proc_lock(p, ERTS_PROC_LOCK_MSGQ);
+ erts_proc_sig_fetch(p);
+ erts_proc_unlock(p, ERTS_PROC_LOCK_MSGQ);
+ erts_print(to, to_arg, "Message queue length: %d\n", p->sig_qs.len);
/* display the message queue only if there is anything in it */
- if (!ERTS_IS_CRASH_DUMPING && p->msg.first != NULL && !garbing) {
- ErtsMessage* mp;
+ if (!ERTS_IS_CRASH_DUMPING && p->sig_qs.first != NULL && !garbing) {
erts_print(to, to_arg, "Message queue: [");
- for (mp = p->msg.first; mp; mp = mp->next)
- erts_print(to, to_arg, mp->next ? "%T," : "%T", ERL_MESSAGE_TERM(mp));
+ ERTS_FOREACH_SIG_PRIVQS(
+ p, mp,
+ {
+ if (ERTS_SIG_IS_NON_MSG((ErtsSignal *) mp))
+ erts_print(to, to_arg, mp->next ? "%T," : "%T",
+ ERL_MESSAGE_TERM(mp));
+ });
erts_print(to, to_arg, "]\n");
}
@@ -306,11 +306,12 @@ print_process_info(fmtfn_t to, void *to_arg, Process *p)
}
/* display the links only if there are any*/
- if (ERTS_P_LINKS(p) || ERTS_P_MONITORS(p)) {
+ if (ERTS_P_LINKS(p) || ERTS_P_MONITORS(p) || ERTS_P_LT_MONITORS(p)) {
PrintMonitorContext context = {1, to, to_arg};
erts_print(to, to_arg,"Link list: [");
- erts_doforall_links(ERTS_P_LINKS(p), &doit_print_link, &context);
- erts_doforall_monitors(ERTS_P_MONITORS(p), &doit_print_monitor, &context);
+ erts_link_tree_foreach(ERTS_P_LINKS(p), doit_print_link, &context);
+ erts_monitor_tree_foreach(ERTS_P_MONITORS(p), doit_print_monitor, &context);
+ erts_monitor_list_foreach(ERTS_P_LT_MONITORS(p), doit_print_monitor, &context);
erts_print(to, to_arg,"]\n");
}