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-rw-r--r--erts/emulator/beam/erl_time_sup.c392
1 files changed, 290 insertions, 102 deletions
diff --git a/erts/emulator/beam/erl_time_sup.c b/erts/emulator/beam/erl_time_sup.c
index 7f8f560681..0421adb409 100644
--- a/erts/emulator/beam/erl_time_sup.c
+++ b/erts/emulator/beam/erl_time_sup.c
@@ -1,7 +1,7 @@
/*
* %CopyrightBegin%
*
- * Copyright Ericsson AB 1999-2015. All Rights Reserved.
+ * Copyright Ericsson AB 1999-2017. 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.
@@ -33,6 +33,8 @@
#include "global.h"
#define ERTS_WANT_TIMER_WHEEL_API
#include "erl_time.h"
+#include "erl_driver.h"
+#include "erl_nif.h"
static erts_smp_mtx_t erts_timeofday_mtx;
static erts_smp_mtx_t erts_get_time_mtx;
@@ -57,6 +59,7 @@ static int time_sup_initialized = 0;
#define ERTS_MONOTONIC_TIME_TERA \
(ERTS_MONOTONIC_TIME_GIGA*ERTS_MONOTONIC_TIME_KILO)
+static void init_time_napi(void);
static void
schedule_send_time_offset_changed_notifications(ErtsMonotonicTime new_offset);
@@ -124,7 +127,11 @@ typedef struct {
typedef struct {
ErtsMonotonicCorrectionInstance prev;
- ErtsMonotonicCorrectionInstance curr;
+ ErtsMonotonicCorrectionInstance curr;
+} ErtsMonotonicCorrectionInstances;
+
+typedef struct {
+ ErtsMonotonicCorrectionInstances insts;
ErtsMonotonicDriftData drift;
ErtsMonotonicTime last_check;
int short_check_interval;
@@ -272,27 +279,24 @@ static ERTS_INLINE ErtsMonotonicTime
read_corrected_time(int os_drift_corrected)
{
ErtsMonotonicTime os_mtime;
- ErtsMonotonicCorrectionData cdata;
- ErtsMonotonicCorrectionInstance *cip;
+ ErtsMonotonicCorrectionInstance ci;
erts_smp_rwmtx_rlock(&time_sup.inf.c.parmon.rwmtx);
os_mtime = erts_os_monotonic_time();
- cdata = time_sup.inf.c.parmon.cdata;
-
- erts_smp_rwmtx_runlock(&time_sup.inf.c.parmon.rwmtx);
-
- if (os_mtime >= cdata.curr.os_mtime)
- cip = &cdata.curr;
+ if (os_mtime >= time_sup.inf.c.parmon.cdata.insts.curr.os_mtime)
+ ci = time_sup.inf.c.parmon.cdata.insts.curr;
else {
- if (os_mtime < cdata.prev.os_mtime)
- erl_exit(ERTS_ABORT_EXIT,
+ if (os_mtime < time_sup.inf.c.parmon.cdata.insts.prev.os_mtime)
+ erts_exit(ERTS_ABORT_EXIT,
"OS monotonic time stepped backwards\n");
- cip = &cdata.prev;
+ ci = time_sup.inf.c.parmon.cdata.insts.prev;
}
- return calc_corrected_erl_mtime(os_mtime, cip, NULL,
+ erts_smp_rwmtx_runlock(&time_sup.inf.c.parmon.rwmtx);
+
+ return calc_corrected_erl_mtime(os_mtime, &ci, NULL,
os_drift_corrected);
}
@@ -360,9 +364,8 @@ check_time_correction(void *vesdp)
{
int init_drift_adj = !vesdp;
ErtsSchedulerData *esdp = (ErtsSchedulerData *) vesdp;
- ErtsMonotonicCorrectionData cdata;
ErtsMonotonicCorrection new_correction;
- ErtsMonotonicCorrectionInstance *cip;
+ ErtsMonotonicCorrectionInstance ci;
ErtsMonotonicTime mdiff, sdiff, os_mtime, erl_mtime, os_stime,
erl_stime, time_offset, timeout_pos;
Uint timeout;
@@ -373,16 +376,15 @@ check_time_correction(void *vesdp)
erts_os_times(&os_mtime, &os_stime);
- cdata = time_sup.inf.c.parmon.cdata;
+ ci = time_sup.inf.c.parmon.cdata.insts.curr;
erts_smp_rwmtx_runlock(&time_sup.inf.c.parmon.rwmtx);
- if (os_mtime < cdata.curr.os_mtime)
- erl_exit(ERTS_ABORT_EXIT,
+ if (os_mtime < ci.os_mtime)
+ erts_exit(ERTS_ABORT_EXIT,
"OS monotonic time stepped backwards\n");
- cip = &cdata.curr;
- erl_mtime = calc_corrected_erl_mtime(os_mtime, cip, &mdiff,
+ erl_mtime = calc_corrected_erl_mtime(os_mtime, &ci, &mdiff,
os_drift_corrected);
time_offset = get_time_offset();
erl_stime = erl_mtime + time_offset;
@@ -397,7 +399,7 @@ check_time_correction(void *vesdp)
time_sup.inf.c.shadow_offset = 0;
}
- new_correction = cip->correction;
+ new_correction = ci.correction;
if (time_sup.r.o.warp_mode == ERTS_MULTI_TIME_WARP_MODE
&& (sdiff < -2*time_sup.r.o.adj.small_diff
@@ -408,7 +410,7 @@ check_time_correction(void *vesdp)
set_time_offset(time_offset);
schedule_send_time_offset_changed_notifications(time_offset);
begin_short_intervals = 1;
- if (cdata.curr.correction.error != 0) {
+ if (ci.correction.error != 0) {
set_new_correction = 1;
new_correction.error = 0;
}
@@ -425,12 +427,12 @@ check_time_correction(void *vesdp)
time_sup.inf.c.shadow_offset -= sdiff;
sdiff = 0;
begin_short_intervals = 1;
- if (cdata.curr.correction.error != 0) {
+ if (ci.correction.error != 0) {
set_new_correction = 1;
new_correction.error = 0;
}
}
- else if (cdata.curr.correction.error == 0) {
+ else if (ci.correction.error == 0) {
if (sdiff < -time_sup.r.o.adj.small_diff) {
set_new_correction = 1;
if (sdiff < -time_sup.r.o.adj.large_diff)
@@ -446,9 +448,9 @@ check_time_correction(void *vesdp)
new_correction.error = -ERTS_TCORR_ERR_SMALL_ADJ;
}
}
- else if (cdata.curr.correction.error > 0) {
+ else if (ci.correction.error > 0) {
if (sdiff < 0) {
- if (cdata.curr.correction.error != ERTS_TCORR_ERR_LARGE_ADJ
+ if (ci.correction.error != ERTS_TCORR_ERR_LARGE_ADJ
&& sdiff < -time_sup.r.o.adj.large_diff) {
new_correction.error = ERTS_TCORR_ERR_LARGE_ADJ;
set_new_correction = 1;
@@ -466,9 +468,9 @@ check_time_correction(void *vesdp)
new_correction.error = 0;
}
}
- else /* if (cdata.curr.correction.error < 0) */ {
+ else /* if (ci.correction.error < 0) */ {
if (0 < sdiff) {
- if (cdata.curr.correction.error != -ERTS_TCORR_ERR_LARGE_ADJ
+ if (ci.correction.error != -ERTS_TCORR_ERR_LARGE_ADJ
&& time_sup.r.o.adj.large_diff < sdiff) {
new_correction.error = -ERTS_TCORR_ERR_LARGE_ADJ;
set_new_correction = 1;
@@ -631,8 +633,8 @@ check_time_correction(void *vesdp)
#ifdef ERTS_TIME_CORRECTION_PRINT
print_correction(set_new_correction,
sdiff,
- cip->correction.error,
- cip->correction.drift,
+ ci.correction.error,
+ ci.correction.drift,
new_correction.error,
new_correction.drift,
timeout);
@@ -644,7 +646,7 @@ check_time_correction(void *vesdp)
os_mtime = erts_os_monotonic_time();
/* Save previous correction instance */
- time_sup.inf.c.parmon.cdata.prev = *cip;
+ time_sup.inf.c.parmon.cdata.insts.prev = ci;
/*
* Current correction instance begin when
@@ -657,15 +659,15 @@ check_time_correction(void *vesdp)
* next OS monotonic time using previous
* correction.
*/
- erl_mtime = calc_corrected_erl_mtime(os_mtime, cip, NULL,
+ erl_mtime = calc_corrected_erl_mtime(os_mtime, &ci, NULL,
os_drift_corrected);
/*
* Save new current correction instance.
*/
- time_sup.inf.c.parmon.cdata.curr.erl_mtime = erl_mtime;
- time_sup.inf.c.parmon.cdata.curr.os_mtime = os_mtime;
- time_sup.inf.c.parmon.cdata.curr.correction = new_correction;
+ time_sup.inf.c.parmon.cdata.insts.curr.erl_mtime = erl_mtime;
+ time_sup.inf.c.parmon.cdata.insts.curr.os_mtime = os_mtime;
+ time_sup.inf.c.parmon.cdata.insts.curr.correction = new_correction;
erts_smp_rwmtx_rwunlock(&time_sup.inf.c.parmon.rwmtx);
}
@@ -676,7 +678,6 @@ check_time_correction(void *vesdp)
erts_twheel_set_timer(esdp->timer_wheel,
&time_sup.inf.c.parmon.timer,
check_time_correction,
- NULL,
(void *) esdp,
timeout_pos);
}
@@ -727,7 +728,6 @@ check_time_offset(void *vesdp)
erts_twheel_set_timer(esdp->timer_wheel,
&time_sup.inf.c.parmon.timer,
check_time_offset,
- NULL,
vesdp,
timeout_pos);
}
@@ -784,24 +784,22 @@ static ErtsMonotonicTime
finalize_corrected_time_offset(ErtsSystemTime *stimep)
{
ErtsMonotonicTime os_mtime;
- ErtsMonotonicCorrectionData cdata;
- ErtsMonotonicCorrectionInstance *cip;
+ ErtsMonotonicCorrectionInstance ci;
int os_drift_corrected = time_sup.r.o.os_corrected_monotonic_time;
erts_smp_rwmtx_rlock(&time_sup.inf.c.parmon.rwmtx);
erts_os_times(&os_mtime, stimep);
- cdata = time_sup.inf.c.parmon.cdata;
+ ci = time_sup.inf.c.parmon.cdata.insts.curr;
erts_smp_rwmtx_runlock(&time_sup.inf.c.parmon.rwmtx);
- if (os_mtime < cdata.curr.os_mtime)
- erl_exit(ERTS_ABORT_EXIT,
+ if (os_mtime < ci.os_mtime)
+ erts_exit(ERTS_ABORT_EXIT,
"OS monotonic time stepped backwards\n");
- cip = &cdata.curr;
- return calc_corrected_erl_mtime(os_mtime, cip, NULL,
+ return calc_corrected_erl_mtime(os_mtime, &ci, NULL,
os_drift_corrected);
}
@@ -836,7 +834,6 @@ late_init_time_correction(ErtsSchedulerData *esdp)
erts_twheel_set_timer(esdp->timer_wheel,
&time_sup.inf.c.parmon.timer,
check_func,
- NULL,
(quick_init_drift_adj
? NULL
: esdp),
@@ -951,6 +948,8 @@ erts_init_time_sup(int time_correction, ErtsTimeWarpMode time_warp_mode)
ErtsMonotonicTime abs_native_offset, native_offset;
#endif
+ init_time_napi();
+
erts_hl_timer_init();
ASSERT(ERTS_MONOTONIC_TIME_MIN < ERTS_MONOTONIC_TIME_MAX);
@@ -1128,13 +1127,13 @@ erts_init_time_sup(int time_correction, ErtsTimeWarpMode time_warp_mode)
cdatap->drift.intervals[0].time.sys = time_sup.inf.c.sinit;
cdatap->drift.intervals[0].time.mon = time_sup.inf.c.minit;
- cdatap->curr.correction.drift = 0;
- cdatap->curr.correction.error = 0;
- cdatap->curr.erl_mtime = ERTS_MONOTONIC_BEGIN;
- cdatap->curr.os_mtime = time_sup.inf.c.minit;
+ cdatap->insts.curr.correction.drift = 0;
+ cdatap->insts.curr.correction.error = 0;
+ cdatap->insts.curr.erl_mtime = ERTS_MONOTONIC_BEGIN;
+ cdatap->insts.curr.os_mtime = time_sup.inf.c.minit;
cdatap->last_check = time_sup.inf.c.minit;
cdatap->short_check_interval = ERTS_INIT_SHORT_INTERVAL_COUNTER;
- cdatap->prev = cdatap->curr;
+ cdatap->insts.prev = cdatap->insts.curr;
if (!time_sup.r.o.os_corrected_monotonic_time)
time_sup.r.o.get_time = get_corrected_time;
@@ -1287,56 +1286,62 @@ erts_finalize_time_offset(void)
/* info functions */
void
-elapsed_time_both(UWord *ms_user, UWord *ms_sys,
- UWord *ms_user_diff, UWord *ms_sys_diff)
+elapsed_time_both(ErtsMonotonicTime *ms_user, ErtsMonotonicTime *ms_sys,
+ ErtsMonotonicTime *ms_user_diff, ErtsMonotonicTime *ms_sys_diff)
{
- UWord prev_total_user, prev_total_sys;
- UWord total_user, total_sys;
+ ErtsMonotonicTime prev_total_user, prev_total_sys;
+ ErtsMonotonicTime total_user, total_sys;
SysTimes now;
sys_times(&now);
- total_user = (now.tms_utime * 1000) / SYS_CLK_TCK;
- total_sys = (now.tms_stime * 1000) / SYS_CLK_TCK;
+ total_user = (ErtsMonotonicTime) ((now.tms_utime * 1000) / SYS_CLK_TCK);
+ total_sys = (ErtsMonotonicTime) ((now.tms_stime * 1000) / SYS_CLK_TCK);
if (ms_user != NULL)
*ms_user = total_user;
if (ms_sys != NULL)
*ms_sys = total_sys;
- erts_smp_mtx_lock(&erts_timeofday_mtx);
+ if (ms_user_diff || ms_sys_diff) {
+ erts_smp_mtx_lock(&erts_timeofday_mtx);
- prev_total_user = (t_start.tms_utime * 1000) / SYS_CLK_TCK;
- prev_total_sys = (t_start.tms_stime * 1000) / SYS_CLK_TCK;
- t_start = now;
+ prev_total_user = (ErtsMonotonicTime) ((t_start.tms_utime * 1000) / SYS_CLK_TCK);
+ prev_total_sys = (ErtsMonotonicTime) ((t_start.tms_stime * 1000) / SYS_CLK_TCK);
+ t_start = now;
- erts_smp_mtx_unlock(&erts_timeofday_mtx);
+ erts_smp_mtx_unlock(&erts_timeofday_mtx);
- if (ms_user_diff != NULL)
- *ms_user_diff = total_user - prev_total_user;
+ if (ms_user_diff != NULL)
+ *ms_user_diff = total_user - prev_total_user;
- if (ms_sys_diff != NULL)
- *ms_sys_diff = total_sys - prev_total_sys;
+ if (ms_sys_diff != NULL)
+ *ms_sys_diff = total_sys - prev_total_sys;
+ }
}
/* wall clock routines */
void
-wall_clock_elapsed_time_both(UWord *ms_total, UWord *ms_diff)
+wall_clock_elapsed_time_both(ErtsMonotonicTime *ms_total, ErtsMonotonicTime *ms_diff)
{
ErtsMonotonicTime now, elapsed;
- erts_smp_mtx_lock(&erts_timeofday_mtx);
-
now = time_sup.r.o.get_time();
update_last_mtime(NULL, now);
elapsed = ERTS_MONOTONIC_TO_MSEC(now);
- *ms_total = (UWord) elapsed;
- *ms_diff = (UWord) (elapsed - prev_wall_clock_elapsed);
- prev_wall_clock_elapsed = elapsed;
- erts_smp_mtx_unlock(&erts_timeofday_mtx);
+ *ms_total = elapsed;
+
+ if (ms_diff) {
+ erts_smp_mtx_lock(&erts_timeofday_mtx);
+
+ *ms_diff = elapsed - prev_wall_clock_elapsed;
+ prev_wall_clock_elapsed = elapsed;
+
+ erts_smp_mtx_unlock(&erts_timeofday_mtx);
+ }
}
/* get current time */
@@ -1500,7 +1505,7 @@ static time_t gregday(int year, int month, int day)
pyear = gyear - 1;
ndays = (pyear/4) - (pyear/100) + (pyear/400) + pyear*365 + 366;
}
- /* number of days in all months preceeding month */
+ /* number of days in all months preceding month */
for (m = 1; m < month; m++)
ndays += mdays[m];
/* Extra day if leap year and March or later */
@@ -1747,7 +1752,40 @@ erts_get_monotonic_time(ErtsSchedulerData *esdp)
{
ErtsMonotonicTime mtime = time_sup.r.o.get_time();
update_last_mtime(esdp, mtime);
- return mtime;
+ return mtime;
+}
+
+ErtsMonotonicTime
+erts_get_time_offset(void)
+{
+ return get_time_offset();
+}
+
+static ERTS_INLINE void
+make_timestamp_value(Uint* megasec, Uint* sec, Uint* microsec,
+ ErtsMonotonicTime mtime, ErtsMonotonicTime offset)
+{
+ ErtsMonotonicTime stime, as;
+ Uint ms;
+
+ stime = ERTS_MONOTONIC_TO_USEC(mtime + offset);
+
+ as = stime / ERTS_MONOTONIC_TIME_MEGA;
+ *megasec = ms = (Uint) (stime / ERTS_MONOTONIC_TIME_TERA);
+ *sec = (Uint) (as - (((ErtsMonotonicTime) ms)
+ * ERTS_MONOTONIC_TIME_MEGA));
+ *microsec = (Uint) (stime - as*ERTS_MONOTONIC_TIME_MEGA);
+
+ ASSERT(((ErtsMonotonicTime) ms)*ERTS_MONOTONIC_TIME_TERA
+ + ((ErtsMonotonicTime) *sec)*ERTS_MONOTONIC_TIME_MEGA
+ + *microsec == stime);
+}
+
+void
+erts_make_timestamp_value(Uint* megasec, Uint* sec, Uint* microsec,
+ ErtsMonotonicTime mtime, ErtsMonotonicTime offset)
+{
+ make_timestamp_value(megasec, sec, microsec, mtime, offset);
}
void
@@ -1796,7 +1834,10 @@ erts_demonitor_time_offset(Eterm ref)
ErtsMonitor *mon;
ASSERT(is_internal_ref(ref));
erts_smp_mtx_lock(&erts_get_time_mtx);
- mon = erts_remove_monitor(&time_offset_monitors, ref);
+ if (is_internal_ordinary_ref(ref))
+ mon = erts_remove_monitor(&time_offset_monitors, ref);
+ else
+ mon = NULL;
if (!mon)
res = 0;
else {
@@ -1813,7 +1854,7 @@ erts_demonitor_time_offset(Eterm ref)
typedef struct {
Eterm pid;
Eterm ref;
- Eterm heap[REF_THING_SIZE];
+ Eterm heap[ERTS_REF_THING_SIZE];
} ErtsTimeOffsetMonitorInfo;
typedef struct {
@@ -1831,14 +1872,14 @@ save_time_offset_monitor(ErtsMonitor *mon, void *vcntxt)
cntxt = (ErtsTimeOffsetMonitorContext *) vcntxt;
mix = (cntxt->ix)++;
- cntxt->to_mon_info[mix].pid = mon->pid;
+ cntxt->to_mon_info[mix].pid = mon->u.pid;
to_hp = &cntxt->to_mon_info[mix].heap[0];
- ASSERT(is_internal_ref(mon->ref));
+ ASSERT(is_internal_ordinary_ref(mon->ref));
from_hp = internal_ref_val(mon->ref);
- ASSERT(thing_arityval(*from_hp) + 1 == REF_THING_SIZE);
+ ASSERT(thing_arityval(*from_hp) + 1 == ERTS_REF_THING_SIZE);
- for (hix = 0; hix < REF_THING_SIZE; hix++)
+ for (hix = 0; hix < ERTS_REF_THING_SIZE; hix++)
to_hp[hix] = from_hp[hix];
cntxt->to_mon_info[mix].ref
@@ -1898,7 +1939,7 @@ send_time_offset_changed_notifications(void *new_offsetp)
hp = (Eterm *) (tmp + no_monitors*sizeof(ErtsTimeOffsetMonitorInfo));
hsz = 6; /* 5-tuple */
- hsz += REF_THING_SIZE;
+ hsz += ERTS_REF_THING_SIZE;
hsz += ERTS_SINT64_HEAP_SIZE(new_offset);
if (IS_SSMALL(new_offset))
@@ -1922,15 +1963,16 @@ send_time_offset_changed_notifications(void *new_offsetp)
ErtsProcLocks rp_locks = ERTS_PROC_LOCK_LINK;
erts_smp_proc_lock(rp, ERTS_PROC_LOCK_LINK);
if (erts_lookup_monitor(ERTS_P_MONITORS(rp), ref)) {
- ErlHeapFragment *bp;
+ ErtsMessage *mp;
ErlOffHeap *ohp;
Eterm message;
- hp = erts_alloc_message_heap(hsz, &bp, &ohp, rp, &rp_locks);
+ mp = erts_alloc_message_heap(rp, &rp_locks,
+ hsz, &hp, &ohp);
*patch_refp = ref;
ASSERT(hsz == size_object(message_template));
message = copy_struct(message_template, hsz, &hp, ohp);
- erts_queue_message(rp, &rp_locks, bp, message, NIL);
+ erts_queue_message(rp, rp_locks, mp, message, am_clock_service);
}
erts_smp_proc_unlock(rp, rp_locks);
}
@@ -2097,22 +2139,26 @@ time_unit_conversion(Process *c_p, Eterm term, ErtsMonotonicTime val, ErtsMonoto
/* Convert to common user specified time units */
switch (term) {
+ case am_second:
case am_seconds:
case make_small(1):
result = ERTS_MONOTONIC_TO_SEC(val) + muloff*ERTS_MONOTONIC_OFFSET_SEC;
ERTS_BIF_PREP_RET(ret, make_time_val(c_p, result));
break;
+ case am_millisecond:
case am_milli_seconds:
case make_small(1000):
result = ERTS_MONOTONIC_TO_MSEC(val) + muloff*ERTS_MONOTONIC_OFFSET_MSEC;
ERTS_BIF_PREP_RET(ret, make_time_val(c_p, result));
break;
+ case am_microsecond:
case am_micro_seconds:
case make_small(1000*1000):
result = ERTS_MONOTONIC_TO_USEC(val) + muloff*ERTS_MONOTONIC_OFFSET_USEC;
ERTS_BIF_PREP_RET(ret, make_time_val(c_p, result));
break;
#ifdef ARCH_64
+ case am_nanosecond:
case am_nano_seconds:
case make_small(1000*1000*1000):
result = ERTS_MONOTONIC_TO_NSEC(val) + muloff*ERTS_MONOTONIC_OFFSET_NSEC;
@@ -2123,7 +2169,7 @@ time_unit_conversion(Process *c_p, Eterm term, ErtsMonotonicTime val, ErtsMonoto
Eterm value, native_res;
#ifndef ARCH_64
Sint user_res;
- if (term == am_nano_seconds)
+ if (term == am_nanosecond || term == am_nano_seconds)
goto to_nano_seconds;
if (term_to_Sint(term, &user_res)) {
if (user_res == 1000*1000*1000) {
@@ -2167,12 +2213,152 @@ time_unit_conversion(Process *c_p, Eterm term, ErtsMonotonicTime val, ErtsMonoto
return ret;
}
+
+/*
+ * Time Native API (drivers and NIFs)
+ */
+
+#define ERTS_NAPI_TIME_ERROR ((ErtsMonotonicTime) ERTS_NAPI_TIME_ERROR__)
+
+static void
+init_time_napi(void)
+{
+ /* Verify that time native api constants are as expected... */
+
+ ASSERT(sizeof(ErtsMonotonicTime) == sizeof(ErlDrvTime));
+ ASSERT(ERL_DRV_TIME_ERROR == (ErlDrvTime) ERTS_NAPI_TIME_ERROR);
+ ASSERT(ERL_DRV_TIME_ERROR < (ErlDrvTime) 0);
+ ASSERT(ERTS_NAPI_SEC__ == (int) ERL_DRV_SEC);
+ ASSERT(ERTS_NAPI_MSEC__ == (int) ERL_DRV_MSEC);
+ ASSERT(ERTS_NAPI_USEC__ == (int) ERL_DRV_USEC);
+ ASSERT(ERTS_NAPI_NSEC__ == (int) ERL_DRV_NSEC);
+
+ ASSERT(sizeof(ErtsMonotonicTime) == sizeof(ErlNifTime));
+ ASSERT(ERL_NIF_TIME_ERROR == (ErlNifTime) ERTS_NAPI_TIME_ERROR);
+ ASSERT(ERL_NIF_TIME_ERROR < (ErlNifTime) 0);
+ ASSERT(ERTS_NAPI_SEC__ == (int) ERL_NIF_SEC);
+ ASSERT(ERTS_NAPI_MSEC__ == (int) ERL_NIF_MSEC);
+ ASSERT(ERTS_NAPI_USEC__ == (int) ERL_NIF_USEC);
+ ASSERT(ERTS_NAPI_NSEC__ == (int) ERL_NIF_NSEC);
+}
+
+ErtsMonotonicTime
+erts_napi_monotonic_time(int time_unit)
+{
+ ErtsSchedulerData *esdp;
+ ErtsMonotonicTime mtime;
+
+ /* At least for now only allow schedulers to do this... */
+ esdp = erts_get_scheduler_data();
+ if (!esdp)
+ return ERTS_NAPI_TIME_ERROR;
+
+ mtime = time_sup.r.o.get_time();
+ update_last_mtime(esdp, mtime);
+
+ switch (time_unit) {
+ case ERTS_NAPI_SEC__:
+ mtime = ERTS_MONOTONIC_TO_SEC(mtime);
+ mtime += ERTS_MONOTONIC_OFFSET_SEC;
+ break;
+ case ERTS_NAPI_MSEC__:
+ mtime = ERTS_MONOTONIC_TO_MSEC(mtime);
+ mtime += ERTS_MONOTONIC_OFFSET_MSEC;
+ break;
+ case ERTS_NAPI_USEC__:
+ mtime = ERTS_MONOTONIC_TO_USEC(mtime);
+ mtime += ERTS_MONOTONIC_OFFSET_USEC;
+ break;
+ case ERTS_NAPI_NSEC__:
+ mtime = ERTS_MONOTONIC_TO_NSEC(mtime);
+ mtime += ERTS_MONOTONIC_OFFSET_NSEC;
+ break;
+ default:
+ return ERTS_NAPI_TIME_ERROR;
+ }
+
+ return mtime;
+}
+
+ErtsMonotonicTime
+erts_napi_time_offset(int time_unit)
+{
+ ErtsSchedulerData *esdp;
+ ErtsSystemTime offs;
+
+ /* At least for now only allow schedulers to do this... */
+ esdp = erts_get_scheduler_data();
+ if (!esdp)
+ return ERTS_NAPI_TIME_ERROR;
+
+ offs = get_time_offset();
+ switch (time_unit) {
+ case ERTS_NAPI_SEC__:
+ offs = ERTS_MONOTONIC_TO_SEC(offs);
+ offs -= ERTS_MONOTONIC_OFFSET_SEC;
+ break;
+ case ERTS_NAPI_MSEC__:
+ offs = ERTS_MONOTONIC_TO_MSEC(offs);
+ offs -= ERTS_MONOTONIC_OFFSET_MSEC;
+ break;
+ case ERTS_NAPI_USEC__:
+ offs = ERTS_MONOTONIC_TO_USEC(offs);
+ offs -= ERTS_MONOTONIC_OFFSET_USEC;
+ break;
+ case ERTS_NAPI_NSEC__:
+ offs = ERTS_MONOTONIC_TO_NSEC(offs);
+ offs -= ERTS_MONOTONIC_OFFSET_NSEC;
+ break;
+ default:
+ return ERTS_NAPI_TIME_ERROR;
+ }
+ return offs;
+}
+
+ErtsMonotonicTime
+erts_napi_convert_time_unit(ErtsMonotonicTime val, int from, int to)
+{
+ ErtsMonotonicTime ffreq, tfreq, denom;
+ /*
+ * Convertion between time units using floor function.
+ *
+ * Note that this needs to work also for negative
+ * values. Ordinary integer division on a negative
+ * value will give ceiling...
+ */
+
+ switch ((int) from) {
+ case ERTS_NAPI_SEC__: ffreq = 1; break;
+ case ERTS_NAPI_MSEC__: ffreq = 1000; break;
+ case ERTS_NAPI_USEC__: ffreq = 1000*1000; break;
+ case ERTS_NAPI_NSEC__: ffreq = 1000*1000*1000; break;
+ default: return ERTS_NAPI_TIME_ERROR;
+ }
+
+ switch ((int) to) {
+ case ERTS_NAPI_SEC__: tfreq = 1; break;
+ case ERTS_NAPI_MSEC__: tfreq = 1000; break;
+ case ERTS_NAPI_USEC__: tfreq = 1000*1000; break;
+ case ERTS_NAPI_NSEC__: tfreq = 1000*1000*1000; break;
+ default: return ERTS_NAPI_TIME_ERROR;
+ }
+
+ if (tfreq >= ffreq)
+ return val * (tfreq / ffreq);
+
+ denom = ffreq / tfreq;
+ if (val >= 0)
+ return val / denom;
+
+ return (val - (denom - 1)) / denom;
+}
+
/* Built in functions */
BIF_RETTYPE monotonic_time_0(BIF_ALIST_0)
{
ErtsMonotonicTime mtime = time_sup.r.o.get_time();
- update_last_mtime(ERTS_PROC_GET_SCHDATA(BIF_P), mtime);
+ update_last_mtime(erts_proc_sched_data(BIF_P), mtime);
mtime += ERTS_MONOTONIC_OFFSET_NATIVE;
BIF_RET(make_time_val(BIF_P, mtime));
}
@@ -2180,7 +2366,7 @@ BIF_RETTYPE monotonic_time_0(BIF_ALIST_0)
BIF_RETTYPE monotonic_time_1(BIF_ALIST_1)
{
ErtsMonotonicTime mtime = time_sup.r.o.get_time();
- update_last_mtime(ERTS_PROC_GET_SCHDATA(BIF_P), mtime);
+ update_last_mtime(erts_proc_sched_data(BIF_P), mtime);
BIF_RET(time_unit_conversion(BIF_P, BIF_ARG_1, mtime, 1));
}
@@ -2189,7 +2375,7 @@ BIF_RETTYPE system_time_0(BIF_ALIST_0)
ErtsMonotonicTime mtime, offset;
mtime = time_sup.r.o.get_time();
offset = get_time_offset();
- update_last_mtime(ERTS_PROC_GET_SCHDATA(BIF_P), mtime);
+ update_last_mtime(erts_proc_sched_data(BIF_P), mtime);
BIF_RET(make_time_val(BIF_P, mtime + offset));
}
@@ -2198,7 +2384,7 @@ BIF_RETTYPE system_time_1(BIF_ALIST_0)
ErtsMonotonicTime mtime, offset;
mtime = time_sup.r.o.get_time();
offset = get_time_offset();
- update_last_mtime(ERTS_PROC_GET_SCHDATA(BIF_P), mtime);
+ update_last_mtime(erts_proc_sched_data(BIF_P), mtime);
BIF_RET(time_unit_conversion(BIF_P, BIF_ARG_1, mtime + offset, 0));
}
@@ -2223,22 +2409,14 @@ BIF_RETTYPE time_offset_1(BIF_ALIST_1)
BIF_RETTYPE timestamp_0(BIF_ALIST_0)
{
Eterm *hp, res;
- ErtsMonotonicTime stime, mtime, all_sec, offset;
+ ErtsMonotonicTime mtime, offset;
Uint mega_sec, sec, micro_sec;
mtime = time_sup.r.o.get_time();
offset = get_time_offset();
- update_last_mtime(ERTS_PROC_GET_SCHDATA(BIF_P), mtime);
- stime = ERTS_MONOTONIC_TO_USEC(mtime + offset);
- all_sec = stime / ERTS_MONOTONIC_TIME_MEGA;
- mega_sec = (Uint) (stime / ERTS_MONOTONIC_TIME_TERA);
- sec = (Uint) (all_sec - (((ErtsMonotonicTime) mega_sec)
- * ERTS_MONOTONIC_TIME_MEGA));
- micro_sec = (Uint) (stime - all_sec*ERTS_MONOTONIC_TIME_MEGA);
+ update_last_mtime(erts_proc_sched_data(BIF_P), mtime);
- ASSERT(((ErtsMonotonicTime) mega_sec)*ERTS_MONOTONIC_TIME_TERA
- + ((ErtsMonotonicTime) sec)*ERTS_MONOTONIC_TIME_MEGA
- + micro_sec == stime);
+ make_timestamp_value(&mega_sec, &sec, &micro_sec, mtime, offset);
/*
* Mega seconds is the only value that potentially
@@ -2267,9 +2445,19 @@ BIF_RETTYPE os_system_time_0(BIF_ALIST_0)
BIF_RET(make_time_val(BIF_P, stime));
}
-BIF_RETTYPE os_system_time_1(BIF_ALIST_0)
+BIF_RETTYPE os_system_time_1(BIF_ALIST_1)
{
ErtsSystemTime stime = erts_os_system_time();
BIF_RET(time_unit_conversion(BIF_P, BIF_ARG_1, stime, 0));
}
+BIF_RETTYPE
+os_perf_counter_0(BIF_ALIST_0)
+{
+ BIF_RET(make_time_val(BIF_P, erts_sys_perf_counter()));
+}
+
+BIF_RETTYPE erts_internal_perf_counter_unit_0(BIF_ALIST_0)
+{
+ BIF_RET(make_time_val(BIF_P, erts_sys_perf_counter_unit()));
+}
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-21 23:43:17 +0000