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-rw-r--r--erts/emulator/beam/erl_time_sup.c48
1 files changed, 20 insertions, 28 deletions
diff --git a/erts/emulator/beam/erl_time_sup.c b/erts/emulator/beam/erl_time_sup.c
index ef39f4b5f4..8203436c85 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 1999-2012. All Rights Reserved.
+ * Copyright Ericsson AB 1999-2015. All Rights Reserved.
*
* The contents of this file are subject to the Erlang Public License,
* Version 1.1, (the "License"); you may not use this file except in
@@ -139,12 +139,12 @@ struct time_sup_read_only__ {
int os_monotonic_time_locked;
Uint64 os_monotonic_time_resolution;
Uint64 os_monotonic_time_extended;
+#endif
char *os_system_time_func;
char *os_system_time_clock_id;
int os_system_time_locked;
Uint64 os_system_time_resolution;
Uint64 os_system_time_extended;
-#endif
#if !ERTS_COMPILE_TIME_MONOTONIC_TIME_UNIT
ErtsMonotonicTime start;
struct {
@@ -287,7 +287,7 @@ get_time_offset(void)
#define ERTS_LONG_TIME_CORRECTION_CHECK ERTS_SEC_TO_MONOTONIC(60)
#define ERTS_SHORT_TIME_CORRECTION_CHECK ERTS_SEC_TO_MONOTONIC(15)
-#define ERTS_TIME_DRIFT_MAX_ADJ_DIFF ERTS_USEC_TO_MONOTONIC(100)
+#define ERTS_TIME_DRIFT_MAX_ADJ_DIFF ERTS_USEC_TO_MONOTONIC(50)
#define ERTS_TIME_DRIFT_MIN_ADJ_DIFF ERTS_USEC_TO_MONOTONIC(5)
static ERTS_INLINE ErtsMonotonicTime
@@ -353,21 +353,21 @@ print_correction(int change,
if (!change)
fprintf(stderr,
- "sdiff = %lld usec : [ec=%lld ppm, dc=%lld ppm] : "
+ "sdiff = %lld usec : [ec=%lld ppm, dc=%lld ppb] : "
"tmo = %lld msec\r\n",
(long long) usec_sdiff,
(long long) (1000000*old_ecorr) / ERTS_TCORR_ERR_UNIT,
- (long long) (1000000*old_dcorr) / ERTS_MONOTONIC_TIME_UNIT,
+ (long long) (1000000000*old_dcorr) / ERTS_MONOTONIC_TIME_UNIT,
(long long) tmo);
else
fprintf(stderr,
- "sdiff = %lld usec : [ec=%lld ppm, dc=%lld ppm] "
- "-> [ec=%lld ppm, dc=%lld ppm] : tmo = %lld msec\r\n",
+ "sdiff = %lld usec : [ec=%lld ppm, dc=%lld ppb] "
+ "-> [ec=%lld ppm, dc=%lld ppb] : tmo = %lld msec\r\n",
(long long) usec_sdiff,
(long long) (1000000*old_ecorr) / ERTS_TCORR_ERR_UNIT,
- (long long) (1000000*old_dcorr) / ERTS_MONOTONIC_TIME_UNIT,
+ (long long) (1000000000*old_dcorr) / ERTS_MONOTONIC_TIME_UNIT,
(long long) (1000000*new_ecorr) / ERTS_TCORR_ERR_UNIT,
- (long long) (1000000*new_dcorr) / ERTS_MONOTONIC_TIME_UNIT,
+ (long long) (1000000000*new_dcorr) / ERTS_MONOTONIC_TIME_UNIT,
(long long) tmo);
}
@@ -412,8 +412,7 @@ check_time_correction(void *unused)
ASSERT(time_sup.inf.c.finalized_offset);
- os_mtime = erts_os_monotonic_time();
- os_stime = erts_os_system_time();
+ erts_os_times(&os_mtime, &os_stime);
cdata = time_sup.inf.c.parmon.cdata;
@@ -556,13 +555,6 @@ check_time_correction(void *unused)
ddp->acc.mon = mtime_acc;
ddp->acc.sys = stime_acc;
- /*
- * If calculated drift adjustment is if off by more than 20%
- * from the average drift we interpret this as a discontinous
- * leap in system time and ignore it. If it actually is a
- * change in drift we will later detect this when the average
- * drift change.
- */
drift_adj_diff = avg_drift_adj - drift_adj;
if (drift_adj_diff < -ERTS_TIME_DRIFT_MAX_ADJ_DIFF
|| ERTS_TIME_DRIFT_MAX_ADJ_DIFF < drift_adj_diff) {
@@ -691,8 +683,7 @@ init_check_time_correction(void *unused)
old_mtime = ddp->intervals[0].time.mon;
old_stime = ddp->intervals[0].time.sys;
- mtime = erts_os_monotonic_time();
- stime = erts_os_system_time();
+ erts_os_times(&mtime, &stime);
mtime_diff = mtime - old_mtime;
stime_diff = stime - old_stime;
@@ -732,8 +723,7 @@ finalize_corrected_time_offset(ErtsSystemTime *stimep)
erts_smp_rwmtx_rlock(&time_sup.inf.c.parmon.rwmtx);
- os_mtime = erts_os_monotonic_time();
- *stimep = erts_os_system_time();
+ erts_os_times(&os_mtime, stimep);
cdata = time_sup.inf.c.parmon.cdata;
@@ -852,6 +842,7 @@ void erts_init_sys_time_sup(void)
= sys_init_time_res.os_monotonic_time_info.resolution;
time_sup.r.o.os_monotonic_time_extended
= sys_init_time_res.os_monotonic_time_info.extended;
+#endif
time_sup.r.o.os_system_time_func
= sys_init_time_res.os_system_time_info.func;
time_sup.r.o.os_system_time_clock_id
@@ -860,7 +851,6 @@ void erts_init_sys_time_sup(void)
= sys_init_time_res.os_system_time_info.locked_use;
time_sup.r.o.os_system_time_resolution
= sys_init_time_res.os_system_time_info.resolution;
-#endif
}
int
@@ -935,9 +925,11 @@ erts_init_time_sup(int time_correction, ErtsTimeWarpMode time_warp_mode)
#endif
- resolution = time_sup.r.o.os_monotonic_time_resolution;
- if (resolution > time_sup.r.o.os_system_time_resolution)
- resolution = time_sup.r.o.os_system_time_resolution;
+ resolution = time_sup.r.o.os_system_time_resolution;
+#ifdef ERTS_HAVE_OS_MONOTONIC_TIME_SUPPORT
+ if (resolution > time_sup.r.o.os_monotonic_time_resolution)
+ resolution = time_sup.r.o.os_monotonic_time_resolution;
+#endif
time_sup.r.o.adj.large_diff = erts_time_sup__.r.o.monotonic_time_unit;
time_sup.r.o.adj.large_diff *= 50;
@@ -972,8 +964,8 @@ erts_init_time_sup(int time_correction, ErtsTimeWarpMode time_warp_mode)
ErtsMonotonicCorrectionData *cdatap;
erts_smp_rwmtx_opt_t rwmtx_opts = ERTS_SMP_RWMTX_OPT_DEFAULT_INITER;
ErtsMonotonicTime offset;
- time_sup.inf.c.minit = erts_os_monotonic_time();
- time_sup.inf.c.sinit = erts_os_system_time();
+ erts_os_times(&time_sup.inf.c.minit,
+ &time_sup.inf.c.sinit);
time_sup.r.o.moffset = -1*time_sup.inf.c.minit;
offset = time_sup.inf.c.sinit;
offset -= ERTS_MONOTONIC_TIME_UNIT;
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-04 01:47:14 +0000