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Diffstat (limited to 'erts/emulator/beam/erl_trace.c')
-rw-r--r--erts/emulator/beam/erl_trace.c113
1 files changed, 75 insertions, 38 deletions
diff --git a/erts/emulator/beam/erl_trace.c b/erts/emulator/beam/erl_trace.c
index 39509f363f..b487dbf054 100644
--- a/erts/emulator/beam/erl_trace.c
+++ b/erts/emulator/beam/erl_trace.c
@@ -36,6 +36,7 @@
#include "error.h"
#include "erl_binary.h"
#include "erl_bits.h"
+#include "erl_thr_progress.h"
#if 0
#define DEBUG_PRINTOUTS
@@ -159,7 +160,7 @@ static Uint active_sched;
void
erts_system_profile_setup_active_schedulers(void)
{
- ERTS_SMP_LC_ASSERT(erts_is_system_blocked(0));
+ ERTS_SMP_LC_ASSERT(erts_thr_progress_is_blocking());
active_sched = erts_active_schedulers();
}
@@ -1940,7 +1941,8 @@ trace_proc(Process *c_p, Process *t_p, Eterm what, Eterm data)
Eterm* hp;
int need;
- ERTS_SMP_LC_ASSERT((erts_proc_lc_my_proc_locks(t_p) != 0) || erts_is_system_blocked(0));
+ ERTS_SMP_LC_ASSERT((erts_proc_lc_my_proc_locks(t_p) != 0)
+ || erts_thr_progress_is_blocking());
if (is_internal_port(t_p->tracer_proc)) {
#define LOCAL_HEAP_SIZE (5+5)
DeclareTmpHeapNoproc(local_heap,LOCAL_HEAP_SIZE);
@@ -2742,7 +2744,8 @@ trace_port(Port *t_p, Eterm what, Eterm data) {
Eterm mess;
Eterm* hp;
- ERTS_SMP_LC_ASSERT(erts_lc_is_port_locked(t_p) || erts_is_system_blocked(0));
+ ERTS_SMP_LC_ASSERT(erts_lc_is_port_locked(t_p)
+ || erts_thr_progress_is_blocking());
if (is_internal_port(t_p->tracer_proc)) {
#define LOCAL_HEAP_SIZE (5+5)
@@ -3018,8 +3021,6 @@ static ErtsSysMsgQ *sys_message_queue_end;
static erts_tid_t sys_msg_dispatcher_tid;
static erts_cnd_t smq_cnd;
-static int dispatcher_waiting;
-
ERTS_QUALLOC_IMPL(smq_element, ErtsSysMsgQ, 20, ERTS_ALC_T_SYS_MSG_Q)
static void
@@ -3063,18 +3064,6 @@ enqueue_sys_msg(enum ErtsSysMsgType type,
erts_smp_mtx_unlock(&smq_mtx);
}
-static void
-prepare_for_block(void *unused)
-{
- erts_smp_mtx_unlock(&smq_mtx);
-}
-
-static void
-resume_after_block(void *unused)
-{
- erts_smp_mtx_lock(&smq_mtx);
-}
-
void
erts_queue_error_logger_message(Eterm from, Eterm msg, ErlHeapFragment *bp)
{
@@ -3140,10 +3129,10 @@ sys_msg_disp_failure(ErtsSysMsgQ *smqp, Eterm receiver)
&& !erts_system_monitor_flags.busy_port
&& !erts_system_monitor_flags.busy_dist_port)
break; /* Everything is disabled */
- erts_smp_block_system(ERTS_BS_FLG_ALLOW_GC);
+ erts_smp_thr_progress_block();
if (system_monitor == receiver || receiver == NIL)
erts_system_monitor_clear(NULL);
- erts_smp_release_system();
+ erts_smp_thr_progress_unblock();
break;
case SYS_MSG_TYPE_SYSPROF:
if (receiver == NIL
@@ -3153,11 +3142,11 @@ sys_msg_disp_failure(ErtsSysMsgQ *smqp, Eterm receiver)
&& !erts_system_profile_flags.scheduler)
break;
/* Block system to clear flags */
- erts_smp_block_system(0);
+ erts_smp_thr_progress_block();
if (system_profile == receiver || receiver == NIL) {
erts_system_profile_clear(NULL);
}
- erts_smp_release_system();
+ erts_smp_thr_progress_unblock();
break;
case SYS_MSG_TYPE_ERRLGR: {
char *no_elgger = "(no error logger present)";
@@ -3198,22 +3187,68 @@ sys_msg_disp_failure(ErtsSysMsgQ *smqp, Eterm receiver)
}
}
+static void
+sys_msg_dispatcher_wakeup(void *vwait_p)
+{
+ int *wait_p = (int *) vwait_p;
+ erts_smp_mtx_lock(&smq_mtx);
+ *wait_p = 0;
+ erts_smp_cnd_signal(&smq_cnd);
+ erts_smp_mtx_unlock(&smq_mtx);
+}
+
+static void
+sys_msg_dispatcher_prep_wait(void *vwait_p)
+{
+ int *wait_p = (int *) vwait_p;
+ erts_smp_mtx_lock(&smq_mtx);
+ *wait_p = 1;
+ erts_smp_mtx_unlock(&smq_mtx);
+}
+
+static void
+sys_msg_dispatcher_fin_wait(void *vwait_p)
+{
+ int *wait_p = (int *) vwait_p;
+ erts_smp_mtx_lock(&smq_mtx);
+ *wait_p = 0;
+ erts_smp_mtx_unlock(&smq_mtx);
+}
+
+static void
+sys_msg_dispatcher_wait(void *vwait_p)
+{
+ int *wait_p = (int *) vwait_p;
+ erts_smp_mtx_lock(&smq_mtx);
+ while (*wait_p)
+ erts_smp_cnd_wait(&smq_cnd, &smq_mtx);
+ erts_smp_mtx_unlock(&smq_mtx);
+}
+
static void *
sys_msg_dispatcher_func(void *unused)
{
+ ErtsThrPrgrCallbacks callbacks;
ErtsSysMsgQ *local_sys_message_queue = NULL;
+ int wait = 0;
#ifdef ERTS_ENABLE_LOCK_CHECK
erts_lc_set_thread_name("system message dispatcher");
#endif
- erts_register_blockable_thread();
- erts_smp_activity_begin(ERTS_ACTIVITY_IO, NULL, NULL, NULL);
+ callbacks.arg = (void *) &wait;
+ callbacks.wakeup = sys_msg_dispatcher_wakeup;
+ callbacks.prepare_wait = sys_msg_dispatcher_prep_wait;
+ callbacks.wait = sys_msg_dispatcher_wait;
+ callbacks.finalize_wait = sys_msg_dispatcher_fin_wait;
+
+ erts_thr_progress_register_managed_thread(NULL, &callbacks, 0);
while (1) {
+ int end_wait = 0;
ErtsSysMsgQ *smqp;
- ERTS_SMP_LC_ASSERT(!ERTS_LC_IS_BLOCKING);
+ ERTS_SMP_LC_ASSERT(!erts_thr_progress_is_blocking());
erts_smp_mtx_lock(&smq_mtx);
@@ -3225,20 +3260,16 @@ sys_msg_dispatcher_func(void *unused)
}
/* Fetch current trace message queue ... */
- erts_smp_activity_change(ERTS_ACTIVITY_IO,
- ERTS_ACTIVITY_WAIT,
- prepare_for_block,
- resume_after_block,
- NULL);
- dispatcher_waiting = 1;
+ if (!sys_message_queue) {
+ erts_smp_mtx_unlock(&smq_mtx);
+ end_wait = 1;
+ erts_thr_progress_active(NULL, 0);
+ erts_thr_progress_prepare_wait(NULL);
+ erts_smp_mtx_lock(&smq_mtx);
+ }
+
while (!sys_message_queue)
erts_smp_cnd_wait(&smq_cnd, &smq_mtx);
- dispatcher_waiting = 0;
- erts_smp_activity_change(ERTS_ACTIVITY_WAIT,
- ERTS_ACTIVITY_IO,
- prepare_for_block,
- resume_after_block,
- NULL);
local_sys_message_queue = sys_message_queue;
sys_message_queue = NULL;
@@ -3246,6 +3277,11 @@ sys_msg_dispatcher_func(void *unused)
erts_smp_mtx_unlock(&smq_mtx);
+ if (end_wait) {
+ erts_thr_progress_finalize_wait(NULL);
+ erts_thr_progress_active(NULL, 1);
+ }
+
/* Send trace messages ... */
ASSERT(local_sys_message_queue);
@@ -3256,6 +3292,9 @@ sys_msg_dispatcher_func(void *unused)
Process *proc = NULL;
Port *port = NULL;
+ if (erts_thr_progress_update(NULL))
+ erts_thr_progress_leader_update(NULL);
+
#ifdef DEBUG_PRINTOUTS
print_msg_type(smqp);
#endif
@@ -3369,7 +3408,6 @@ sys_msg_dispatcher_func(void *unused)
}
}
- erts_smp_activity_end(ERTS_ACTIVITY_IO, NULL, NULL, NULL);
return NULL;
}
@@ -3419,7 +3457,6 @@ init_sys_msg_dispatcher(void)
sys_message_queue_end = NULL;
erts_smp_cnd_init(&smq_cnd);
erts_smp_mtx_init(&smq_mtx, "sys_msg_q");
- dispatcher_waiting = 0;
erts_smp_thr_create(&sys_msg_dispatcher_tid,
sys_msg_dispatcher_func,
NULL,
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-07 23:07:41 +0000