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-rw-r--r--erts/emulator/sys/unix/erl_unix_sys.h6
-rw-r--r--erts/emulator/sys/unix/sys_time.c433
-rw-r--r--erts/emulator/sys/win32/erl_poll.c1
-rw-r--r--erts/emulator/sys/win32/erl_win_sys.h2
-rw-r--r--erts/emulator/sys/win32/sys_time.c16
5 files changed, 287 insertions, 171 deletions
diff --git a/erts/emulator/sys/unix/erl_unix_sys.h b/erts/emulator/sys/unix/erl_unix_sys.h
index 8fc5a3ca49..29a65f883c 100644
--- a/erts/emulator/sys/unix/erl_unix_sys.h
+++ b/erts/emulator/sys/unix/erl_unix_sys.h
@@ -177,10 +177,10 @@ typedef ErtsMonotonicTime ErtsSystemTime;
/*
* OS monotonic time and OS system time
*/
-
#undef ERTS_OS_TIMES_INLINE_FUNC_PTR_CALL__
-#if defined(OS_SYSTEM_TIME_USING_CLOCK_GETTIME)
+#if defined(OS_SYSTEM_TIME_USING_CLOCK_GETTIME) \
+ && defined(OS_MONOTONIC_TIME_USING_CLOCK_GETTIME)
# if defined(__linux__)
# define ERTS_OS_TIMES_INLINE_FUNC_PTR_CALL__ 1
# endif
@@ -191,13 +191,11 @@ ErtsSystemTime erts_os_system_time(void);
#undef ERTS_HAVE_OS_MONOTONIC_TIME_SUPPORT
#undef ERTS_COMPILE_TIME_MONOTONIC_TIME_UNIT
#undef ERTS_OS_MONOTONIC_INLINE_FUNC_PTR_CALL__
-#undef ERTS_HAVE_CORRECTED_OS_MONOTONIC
#if defined(OS_MONOTONIC_TIME_USING_CLOCK_GETTIME)
# define ERTS_HAVE_OS_MONOTONIC_TIME_SUPPORT 1
# define ERTS_COMPILE_TIME_MONOTONIC_TIME_UNIT (1000*1000*1000)
# if defined(__linux__)
-# define ERTS_HAVE_CORRECTED_OS_MONOTONIC 1
# define ERTS_OS_MONOTONIC_INLINE_FUNC_PTR_CALL__ 1
# endif
#elif defined(OS_MONOTONIC_TIME_USING_MACH_CLOCK_GET_TIME)
diff --git a/erts/emulator/sys/unix/sys_time.c b/erts/emulator/sys/unix/sys_time.c
index d535457977..dc1822b21c 100644
--- a/erts/emulator/sys/unix/sys_time.c
+++ b/erts/emulator/sys/unix/sys_time.c
@@ -31,6 +31,7 @@
# undef _FILE_OFFSET_BITS
#endif
+#include <stdlib.h>
#include "sys.h"
#include "global.h"
#include "erl_os_monotonic_time_extender.h"
@@ -39,14 +40,11 @@
#undef ERTS_HAVE_ERTS_SYS_HRTIME_IMPL__
#if defined(OS_MONOTONIC_TIME_USING_MACH_CLOCK_GET_TIME) \
- || defined(OS_SYSTEM_TIME_USING_MACH_CLOCK_GET_TIME)
-# include <mach/clock.h>
-# include <mach/mach.h>
-# ifdef HAVE_CLOCK_GET_ATTRIBUTES
-# define ERTS_HAVE_MACH_CLOCK_GETRES
-static Sint64
-mach_clock_getres(clock_id_t clkid, char *clkid_str);
-# endif
+ || defined(OS_SYSTEM_TIME_USING_MACH_CLOCK_GET_TIME) \
+ || defined(SYS_HRTIME_USING_MACH_CLOCK_GET_TIME)
+# include <mach/clock.h>
+# include <mach/mach.h>
+# define ERTS_MACH_CLOCKS
#endif
#ifdef NO_SYSCONF
@@ -99,20 +97,53 @@ ErtsSysTimeData__ erts_sys_time_data__ erts_align_attribute(ERTS_CACHE_LINE_SIZE
#define ERTS_SYS_TIME_INTERNAL_STATE_WRITE_FREQ__
-static ErtsMonotonicTime clock_gettime_monotonic_raw(void);
+static ErtsMonotonicTime clock_gettime_monotonic(void);
static ErtsMonotonicTime clock_gettime_monotonic_verified(void);
+#if defined(HAVE_CLOCK_GETTIME_MONOTONIC_RAW)
+static ErtsMonotonicTime clock_gettime_monotonic_raw(void);
+#endif
#if defined(OS_SYSTEM_TIME_USING_CLOCK_GETTIME)
-static void clock_gettime_times_raw(ErtsMonotonicTime *, ErtsSystemTime *);
+static void clock_gettime_times(ErtsMonotonicTime *, ErtsSystemTime *);
static void clock_gettime_times_verified(ErtsMonotonicTime *, ErtsSystemTime *);
+#if defined(HAVE_CLOCK_GETTIME_MONOTONIC_RAW)
+static void clock_gettime_times_raw(ErtsMonotonicTime *, ErtsSystemTime *);
+#endif
#endif
#endif /* defined(__linux__) && defined(OS_MONOTONIC_TIME_USING_CLOCK_GETTIME) */
+#ifdef ERTS_MACH_CLOCKS
+# define ERTS_SYS_TIME_INTERNAL_STATE_READ_ONLY__
+typedef struct {
+ clock_id_t id;
+ clock_serv_t srv;
+ char *name;
+} ErtsMachClock;
+
+typedef struct {
+ host_name_port_t host;
+ struct {
+ ErtsMachClock monotonic;
+ ErtsMachClock wall;
+ } clock;
+} ErtsMachClocks;
+static void mach_clocks_init(void);
+static void mach_clocks_fini(void);
+# ifdef HAVE_CLOCK_GET_ATTRIBUTES
+# define ERTS_HAVE_MACH_CLOCK_GETRES
+static Sint64
+mach_clock_getres(ErtsMachClock *clk);
+# endif
+#endif /* ERTS_MACH_CLOCKS */
+
#ifdef ERTS_SYS_TIME_INTERNAL_STATE_READ_ONLY__
struct sys_time_internal_state_read_only__ {
#if defined(OS_MONOTONIC_TIME_USING_TIMES)
int times_shift;
#endif
+#ifdef ERTS_MACH_CLOCKS
+ ErtsMachClocks mach;
+#endif
};
#endif
@@ -166,13 +197,23 @@ static struct {
void
sys_init_time(ErtsSysInitTimeResult *init_resp)
{
+#if defined(ERTS_HAVE_OS_MONOTONIC_TIME_SUPPORT)
+ int major, minor, build, vsn;
+#endif
+#if defined(ERTS_MACH_CLOCKS)
+ mach_clocks_init();
+#endif
#if !defined(ERTS_HAVE_OS_MONOTONIC_TIME_SUPPORT)
init_resp->have_os_monotonic_time = 0;
#else /* defined(ERTS_HAVE_OS_MONOTONIC_TIME_SUPPORT) */
- int major, minor, build, vsn;
+#ifdef ERTS_HAVE_CORRECTED_OS_MONOTONIC_TIME
+ init_resp->have_corrected_os_monotonic_time = 1;
+#else
+ init_resp->have_corrected_os_monotonic_time = 0;
+#endif
init_resp->os_monotonic_time_info.resolution = (Uint64) 1000*1000*1000;
#if defined(HAVE_CLOCK_GETRES) && defined(MONOTONIC_CLOCK_ID)
@@ -187,7 +228,7 @@ sys_init_time(ErtsSysInitTimeResult *init_resp)
}
#elif defined(ERTS_HAVE_MACH_CLOCK_GETRES) && defined(MONOTONIC_CLOCK_ID)
init_resp->os_monotonic_time_info.resolution
- = mach_clock_getres(MONOTONIC_CLOCK_ID, MONOTONIC_CLOCK_ID_STR);
+ = mach_clock_getres(&internal_state.r.o.mach.clock.monotonic);
#endif
#ifdef MONOTONIC_CLOCK_ID_STR
@@ -220,29 +261,52 @@ sys_init_time(ErtsSysInitTimeResult *init_resp)
#if defined(__linux__) && defined(OS_MONOTONIC_TIME_USING_CLOCK_GETTIME)
if (vsn >= ERTS_MK_VSN_INT(2, 6, 33)) {
erts_sys_time_data__.r.o.os_monotonic_time =
- clock_gettime_monotonic_raw;
+ clock_gettime_monotonic;
#if defined(OS_SYSTEM_TIME_USING_CLOCK_GETTIME)
erts_sys_time_data__.r.o.os_times =
- clock_gettime_times_raw;
+ clock_gettime_times;
#endif
}
else {
/*
* Linux versions prior to 2.6.33 have a
- * known bug that sometimes cause monotonic
- * time to take small steps backwards.
+ * known bug that sometimes cause the NTP
+ * adjusted monotonic clock to take small
+ * steps backwards. Use raw monotonic clock
+ * if it is present; otherwise, fall back
+ * on locked verification of values.
*/
- erts_sys_time_data__.r.o.os_monotonic_time =
- clock_gettime_monotonic_verified;
+ init_resp->have_corrected_os_monotonic_time = 0;
+#if defined(HAVE_CLOCK_GETTIME_MONOTONIC_RAW)
+ /* We know that CLOCK_MONOTONIC_RAW is defined,
+ but we don't know if we got a kernel that
+ supports it. Support for CLOCK_MONOTONIC_RAW
+ appeared in kernel 2.6.28... */
+ if (vsn >= ERTS_MK_VSN_INT(2, 6, 28)) {
+ erts_sys_time_data__.r.o.os_monotonic_time =
+ clock_gettime_monotonic_raw;
#if defined(OS_SYSTEM_TIME_USING_CLOCK_GETTIME)
- erts_sys_time_data__.r.o.os_times =
- clock_gettime_times_verified;
+ erts_sys_time_data__.r.o.os_times =
+ clock_gettime_times_raw;
#endif
- erts_smp_mtx_init(&internal_state.w.f.mtx,
- "os_monotonic_time");
- internal_state.w.f.last_delivered
- = clock_gettime_monotonic_raw();
- init_resp->os_monotonic_time_info.locked_use = 1;
+ init_resp->os_monotonic_time_info.clock_id =
+ "CLOCK_MONOTONIC_RAW";
+ }
+ else
+#endif /* defined(HAVE_CLOCK_GETTIME_MONOTONIC_RAW) */
+ {
+ erts_sys_time_data__.r.o.os_monotonic_time =
+ clock_gettime_monotonic_verified;
+#if defined(OS_SYSTEM_TIME_USING_CLOCK_GETTIME)
+ erts_sys_time_data__.r.o.os_times =
+ clock_gettime_times_verified;
+#endif
+ erts_smp_mtx_init(&internal_state.w.f.mtx,
+ "os_monotonic_time");
+ internal_state.w.f.last_delivered
+ = clock_gettime_monotonic();
+ init_resp->os_monotonic_time_info.locked_use = 1;
+ }
}
#else /* !(defined(__linux__) && defined(OS_MONOTONIC_TIME_USING_CLOCK_GETTIME)) */
{
@@ -324,7 +388,7 @@ sys_init_time(ErtsSysInitTimeResult *init_resp)
}
#elif defined(ERTS_HAVE_MACH_CLOCK_GETRES) && defined(WALL_CLOCK_ID)
init_resp->os_system_time_info.resolution
- = mach_clock_getres(WALL_CLOCK_ID, WALL_CLOCK_ID_STR);
+ = mach_clock_getres(&internal_state.r.o.mach.clock.wall);
#endif
#if defined(OS_SYSTEM_TIME_USING_CLOCK_GETTIME)
@@ -366,6 +430,10 @@ adj_stime_time_unit(ErtsSystemTime stime, Uint32 res)
(Uint32) ERTS_MONOTONIC_TIME_UNIT));
}
+#define ERTS_TimeSpec2Sint64(TS) \
+ ((((Sint64) (TS)->tv_sec) * ((Sint64) 1000*1000*1000)) \
+ + ((Sint64) (TS)->tv_nsec))
+
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *\
* POSIX clock_gettime() *
\* */
@@ -373,17 +441,7 @@ adj_stime_time_unit(ErtsSystemTime stime, Uint32 res)
#if defined(OS_MONOTONIC_TIME_USING_CLOCK_GETTIME) \
|| defined(OS_SYSTEM_TIME_USING_CLOCK_GETTIME)
-static ERTS_INLINE ErtsMonotonicTime
-timespec2montime(struct timespec *ts)
-{
- ErtsMonotonicTime time;
- time = (ErtsMonotonicTime) ts->tv_sec;
- time *= (ErtsMonotonicTime) 1000*1000*1000;
- time += (ErtsMonotonicTime) ts->tv_nsec;
- return time;
-}
-
-static ERTS_INLINE ErtsMonotonicTime
+static ERTS_INLINE Sint64
posix_clock_gettime(clockid_t id, char *name)
{
struct timespec ts;
@@ -395,7 +453,7 @@ posix_clock_gettime(clockid_t id, char *name)
"clock_gettime(%s, _) failed: %s (%d)\n",
name, errstr, err);
}
- return timespec2montime(&ts);
+ return ERTS_TimeSpec2Sint64(&ts);
}
#endif /* defined(OS_MONOTONIC_TIME_USING_CLOCK_GETTIME) \
@@ -406,11 +464,10 @@ posix_clock_gettime(clockid_t id, char *name)
ErtsSystemTime
erts_os_system_time(void)
{
- ErtsSystemTime stime;
-
- stime = (ErtsSystemTime) posix_clock_gettime(WALL_CLOCK_ID,
- WALL_CLOCK_ID_STR);
- return adj_stime_time_unit(stime, (Uint32) 1000*1000*1000);
+ Sint64 stime = posix_clock_gettime(WALL_CLOCK_ID,
+ WALL_CLOCK_ID_STR);
+ return adj_stime_time_unit((ErtsSystemTime) stime,
+ (Uint32) 1000*1000*1000);
}
#endif /* defined(OS_SYSTEM_TIME_USING_CLOCK_GETTIME) */
@@ -422,32 +479,34 @@ erts_os_system_time(void)
#define ERTS_HAVE_ERTS_OS_TIMES_IMPL__
static ERTS_INLINE void
-posix_clock_gettime_times(ErtsMonotonicTime *mtimep,
+posix_clock_gettime_times(clockid_t mid, char *mname,
+ ErtsMonotonicTime *mtimep,
+ clockid_t sid, char *sname,
ErtsSystemTime *stimep)
{
struct timespec mts, sts;
int mres, sres, merr, serr;
- mres = clock_gettime(MONOTONIC_CLOCK_ID, &mts);
+ mres = clock_gettime(mid, &mts);
merr = errno;
- sres = clock_gettime(WALL_CLOCK_ID, &sts);
+ sres = clock_gettime(sid, &sts);
serr = errno;
if (mres != 0) {
char *errstr = merr ? strerror(merr) : "unknown";
erl_exit(ERTS_ABORT_EXIT,
"clock_gettime(%s, _) failed: %s (%d)\n",
- MONOTONIC_CLOCK_ID_STR, errstr, merr);
+ mname, errstr, merr);
}
if (sres != 0) {
char *errstr = serr ? strerror(serr) : "unknown";
erl_exit(ERTS_ABORT_EXIT,
"clock_gettime(%s, _) failed: %s (%d)\n",
- WALL_CLOCK_ID_STR, errstr, serr);
+ sname, errstr, serr);
}
- *mtimep = timespec2montime(&mts);
- *stimep = (ErtsSystemTime) timespec2montime(&sts);
+ *mtimep = (ErtsMonotonicTime) ERTS_TimeSpec2Sint64(&mts);
+ *stimep = (ErtsSystemTime) ERTS_TimeSpec2Sint64(&sts);
}
#endif /* defined(OS_SYSTEM_TIME_USING_CLOCK_GETTIME) */
@@ -456,8 +515,10 @@ posix_clock_gettime_times(ErtsMonotonicTime *mtimep,
static ErtsMonotonicTime clock_gettime_monotonic_verified(void)
{
- ErtsMonotonicTime mtime = posix_clock_gettime(MONOTONIC_CLOCK_ID,
- MONOTONIC_CLOCK_ID_STR);
+ ErtsMonotonicTime mtime;
+
+ mtime = (ErtsMonotonicTime) posix_clock_gettime(MONOTONIC_CLOCK_ID,
+ MONOTONIC_CLOCK_ID_STR);
erts_smp_mtx_lock(&internal_state.w.f.mtx);
if (mtime < internal_state.w.f.last_delivered)
@@ -474,7 +535,12 @@ static ErtsMonotonicTime clock_gettime_monotonic_verified(void)
static void clock_gettime_times_verified(ErtsMonotonicTime *mtimep,
ErtsSystemTime *stimep)
{
- posix_clock_gettime_times(mtimep, stimep);
+ posix_clock_gettime_times(MONOTONIC_CLOCK_ID,
+ MONOTONIC_CLOCK_ID_STR,
+ mtimep,
+ WALL_CLOCK_ID,
+ WALL_CLOCK_ID_STR,
+ stimep);
erts_smp_mtx_lock(&internal_state.w.f.mtx);
if (*mtimep < internal_state.w.f.last_delivered)
@@ -486,20 +552,50 @@ static void clock_gettime_times_verified(ErtsMonotonicTime *mtimep,
#endif /* defined(OS_SYSTEM_TIME_USING_CLOCK_GETTIME) */
+static ErtsMonotonicTime clock_gettime_monotonic(void)
+{
+ return (ErtsMonotonicTime) posix_clock_gettime(MONOTONIC_CLOCK_ID,
+ MONOTONIC_CLOCK_ID_STR);
+}
+
+#if defined(HAVE_CLOCK_GETTIME_MONOTONIC_RAW)
+
static ErtsMonotonicTime clock_gettime_monotonic_raw(void)
{
- return posix_clock_gettime(MONOTONIC_CLOCK_ID,
- MONOTONIC_CLOCK_ID_STR);
+ return (ErtsMonotonicTime) posix_clock_gettime(CLOCK_MONOTONIC_RAW,
+ "CLOCK_MONOTONIC_RAW");
}
+#endif /* defined(HAVE_CLOCK_GETTIME_MONOTONIC_RAW) */
+
#if defined(OS_SYSTEM_TIME_USING_CLOCK_GETTIME)
+static void clock_gettime_times(ErtsMonotonicTime *mtimep,
+ ErtsSystemTime *stimep)
+{
+ posix_clock_gettime_times(MONOTONIC_CLOCK_ID,
+ MONOTONIC_CLOCK_ID_STR,
+ mtimep,
+ WALL_CLOCK_ID,
+ WALL_CLOCK_ID_STR,
+ stimep);
+}
+
+#if defined(HAVE_CLOCK_GETTIME_MONOTONIC_RAW)
+
static void clock_gettime_times_raw(ErtsMonotonicTime *mtimep,
ErtsSystemTime *stimep)
{
- posix_clock_gettime_times(mtimep, stimep);
+ posix_clock_gettime_times(CLOCK_MONOTONIC_RAW,
+ "CLOCK_MONOTONIC_RAW",
+ mtimep,
+ WALL_CLOCK_ID,
+ WALL_CLOCK_ID_STR,
+ stimep);
}
+#endif /* defined(HAVE_CLOCK_GETTIME_MONOTONIC_RAW) */
+
#endif /* defined(OS_SYSTEM_TIME_USING_CLOCK_GETTIME) */
#else /* !defined(__linux__) */
@@ -514,61 +610,116 @@ ErtsMonotonicTime erts_os_monotonic_time(void)
void erts_os_times(ErtsMonotonicTime *mtimep, ErtsSystemTime *stimep)
{
- posix_clock_gettime_times(mtimep, stimep);
+ posix_clock_gettime_times(MONOTONIC_CLOCK_ID,
+ MONOTONIC_CLOCK_ID_STR,
+ mtimep,
+ WALL_CLOCK_ID,
+ WALL_CLOCK_ID_STR,
+ stimep);
}
#endif /* defined(OS_SYSTEM_TIME_USING_CLOCK_GETTIME) */
#endif /* !defined(__linux__) */
-#define ERTS_HAVE_ERTS_SYS_HRTIME_IMPL__
+#endif /* defined(OS_MONOTONIC_TIME_USING_CLOCK_GETTIME) */
+
+#if defined(SYS_HRTIME_USING_CLOCK_GETTIME)
+# define ERTS_HAVE_ERTS_SYS_HRTIME_IMPL__
ErtsSysHrTime
erts_sys_hrtime(void)
{
- return (ErtsSysHrTime) posix_clock_gettime(MONOTONIC_CLOCK_ID,
- MONOTONIC_CLOCK_ID_STR);
+ return (ErtsSysHrTime) posix_clock_gettime(HRTIME_CLOCK_ID,
+ HRTIME_CLOCK_ID_STR);
}
-#endif /* defined(OS_MONOTONIC_TIME_USING_CLOCK_GETTIME) */
+#endif /* defined(SYS_HRTIME_USING_CLOCK_GETTIME) */
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *\
* MACH clock_get_time() *
\* */
-#if defined(OS_MONOTONIC_TIME_USING_MACH_CLOCK_GET_TIME) \
- || defined(OS_SYSTEM_TIME_USING_MACH_CLOCK_GET_TIME)
+#if defined(ERTS_MACH_CLOCKS)
-#ifdef ERTS_HAVE_MACH_CLOCK_GETRES
+static void
+mach_clocks_fini(void)
+{
+ mach_port_t task = mach_task_self();
+ mach_port_deallocate(task, internal_state.r.o.mach.host);
+#if defined(OS_MONOTONIC_TIME_USING_MACH_CLOCK_GET_TIME)
+ mach_port_deallocate(task, internal_state.r.o.mach.clock.monotonic.srv);
+#endif
+#if defined(OS_SYSTEM_TIME_USING_MACH_CLOCK_GET_TIME)
+ mach_port_deallocate(task, internal_state.r.o.mach.clock.wall.srv);
+#endif
+}
-static Sint64
-mach_clock_getres(clock_id_t clkid, char *clkid_str)
+static void
+mach_clocks_init(void)
{
- mach_port_t task;
- host_name_port_t host;
- natural_t attr[1];
kern_return_t kret;
- clock_serv_t clk_srv;
- mach_msg_type_number_t cnt;
+ host_name_port_t host;
+ clock_id_t id;
+ clock_serv_t *clck_srv_p;
+ char *name;
+
+ host = internal_state.r.o.mach.host = mach_host_self();
- host = mach_host_self();
- kret = host_get_clock_service(host, clkid, &clk_srv);
+#if defined(OS_MONOTONIC_TIME_USING_MACH_CLOCK_GET_TIME) \
+ || defined(SYS_HRTIME_USING_MACH_CLOCK_GET_TIME)
+ id = internal_state.r.o.mach.clock.monotonic.id = MONOTONIC_CLOCK_ID;
+ name = internal_state.r.o.mach.clock.monotonic.name = MONOTONIC_CLOCK_ID_STR;
+ clck_srv_p = &internal_state.r.o.mach.clock.monotonic.srv;
+ kret = host_get_clock_service(host, id, clck_srv_p);
if (kret != KERN_SUCCESS) {
erl_exit(ERTS_ABORT_EXIT,
"host_get_clock_service(_, %s, _) failed\n",
- clkid_str);
+ name);
}
+#endif
- cnt = sizeof(attr);
- kret = clock_get_attributes(clk_srv, CLOCK_GET_TIME_RES, (clock_attr_t) attr, &cnt);
+#if defined(OS_SYSTEM_TIME_USING_MACH_CLOCK_GET_TIME)
+ id = internal_state.r.o.mach.clock.wall.id = WALL_CLOCK_ID;
+ name = internal_state.r.o.mach.clock.wall.name = WALL_CLOCK_ID_STR;
+ clck_srv_p = &internal_state.r.o.mach.clock.wall.srv;
+ kret = host_get_clock_service(host, id, clck_srv_p);
if (kret != KERN_SUCCESS) {
+ erl_exit(ERTS_ABORT_EXIT,
+ "host_get_clock_service(_, %s, _) failed\n",
+ name);
+ }
+#endif
+
+ if (atexit(mach_clocks_fini) != 0) {
+ int err = errno;
+ char *errstr = err ? strerror(err) : "unknown";
+ erl_exit(ERTS_ABORT_EXIT,
+ "Failed to register mach_clocks_fini() "
+ "for call at exit: %s (%d)\n",
+ errstr, err);
+ }
+}
+
+#ifdef ERTS_HAVE_MACH_CLOCK_GETRES
+
+static Sint64
+mach_clock_getres(ErtsMachClock *clk)
+{
+ kern_return_t kret;
+ natural_t attr[1];
+ mach_msg_type_number_t cnt;
+
+ cnt = sizeof(attr);
+ kret = clock_get_attributes(clk->srv,
+ CLOCK_GET_TIME_RES,
+ (clock_attr_t) attr,
+ &cnt);
+ if (kret != KERN_SUCCESS || cnt != 1) {
erl_exit(ERTS_ABORT_EXIT,
"clock_get_attributes(%s, _) failed\n",
- clkid_str);
+ clk->name);
}
- task = mach_task_self();
- mach_port_deallocate(task, host);
- mach_port_deallocate(task, clk_srv);
return (Sint64) attr[0];
}
@@ -576,41 +727,19 @@ mach_clock_getres(clock_id_t clkid, char *clkid_str)
#endif /* ERTS_HAVE_MACH_CLOCK_GETRES */
static ERTS_INLINE Sint64
-mach_clock_gettime(clock_id_t clkid, char *clkid_str)
+mach_clock_get_time(ErtsMachClock *clk)
{
- Sint64 time;
- mach_port_t task;
- host_name_port_t host;
kern_return_t kret;
- clock_serv_t clk_srv;
mach_timespec_t time_spec;
- host = mach_host_self();
- kret = host_get_clock_service(host, clkid, &clk_srv);
- if (kret != KERN_SUCCESS) {
- erl_exit(ERTS_ABORT_EXIT,
- "host_get_clock_service(_, %s, _) failed\n",
- clkid_str);
- }
- errno = 0;
- kret = clock_get_time(clk_srv, &time_spec);
- if (kret != KERN_SUCCESS) {
- erl_exit(ERTS_ABORT_EXIT,
- "clock_get_time(%s, _) failed\n",
- clkid_str);
- }
- task = mach_task_self();
- mach_port_deallocate(task, host);
- mach_port_deallocate(task, clk_srv);
+ kret = clock_get_time(clk->srv, &time_spec);
+ if (kret != KERN_SUCCESS)
+ erl_exit(ERTS_ABORT_EXIT, "clock_get_time(%s, _) failed\n", clk->name);
- time = (Sint64) time_spec.tv_sec;
- time *= (Sint64) 1000*1000*1000;
- time += (Sint64) time_spec.tv_nsec;
- return time;
+ return ERTS_TimeSpec2Sint64(&time_spec);
}
-#endif /* defined(OS_MONOTONIC_TIME_USING_MACH_CLOCK_GET_TIME) \
- || defined(OS_SYSTEM_TIME_USING_MACH_CLOCK_GET_TIME) */
+#endif /* defined(ERTS_MACH_CLOCKS) */
#if defined(OS_SYSTEM_TIME_USING_MACH_CLOCK_GET_TIME)
@@ -619,10 +748,9 @@ mach_clock_gettime(clock_id_t clkid, char *clkid_str)
ErtsSystemTime
erts_os_system_time(void)
{
- ErtsSystemTime stime;
- stime = (ErtsSystemTime) mach_clock_gettime(WALL_CLOCK_ID,
- WALL_CLOCK_ID_STR);
- return adj_stime_time_unit(stime, (Uint32) 1000*1000*1000);
+ Sint64 stime = mach_clock_get_time(&internal_state.r.o.mach.clock.wall);
+ return adj_stime_time_unit((ErtsSystemTime) stime,
+ (Uint32) 1000*1000*1000);
}
#endif /* defined(OS_SYSTEM_TIME_USING_MACH_CLOCK_GET_TIME) */
@@ -632,17 +760,8 @@ erts_os_system_time(void)
ErtsMonotonicTime
erts_os_monotonic_time(void)
{
- return (ErtsMonotonicTime) mach_clock_gettime(MONOTONIC_CLOCK_ID,
- MONOTONIC_CLOCK_ID_STR);
-}
-
-#define ERTS_HAVE_ERTS_SYS_HRTIME_IMPL__
-
-ErtsSysHrTime
-erts_sys_hrtime(void)
-{
- return (ErtsMonotonicTime) mach_clock_gettime(MONOTONIC_CLOCK_ID,
- MONOTONIC_CLOCK_ID_STR);
+ return (ErtsMonotonicTime)
+ mach_clock_get_time(&internal_state.r.o.mach.clock.monotonic);
}
#if defined(OS_SYSTEM_TIME_USING_MACH_CLOCK_GET_TIME)
@@ -652,58 +771,44 @@ erts_sys_hrtime(void)
void
erts_os_times(ErtsMonotonicTime *mtimep, ErtsSystemTime *stimep)
{
- ErtsMonotonicTime mtime;
- ErtsSystemTime stime;
- mach_port_t task;
- host_name_port_t host;
kern_return_t mkret, skret;
- clock_serv_t mclk_srv, sclk_srv;
mach_timespec_t mon_time_spec, sys_time_spec;
- host = mach_host_self();
- mkret = host_get_clock_service(host, MONOTONIC_CLOCK_ID, &mclk_srv);
- skret = host_get_clock_service(host, WALL_CLOCK_ID, &sclk_srv);
- if (mkret != KERN_SUCCESS) {
- erl_exit(ERTS_ABORT_EXIT,
- "host_get_clock_service(_, %s, _) failed\n",
- MONOTONIC_CLOCK_ID);
- }
- if (skret != KERN_SUCCESS) {
- erl_exit(ERTS_ABORT_EXIT,
- "host_get_clock_service(_, %s, _) failed\n",
- WALL_CLOCK_ID);
- }
- mkret = clock_get_time(mclk_srv, &mon_time_spec);
- skret = clock_get_time(sclk_srv, &sys_time_spec);
- if (mkret != KERN_SUCCESS) {
+ mkret = clock_get_time(internal_state.r.o.mach.clock.monotonic.srv,
+ &mon_time_spec);
+ skret = clock_get_time(internal_state.r.o.mach.clock.wall.srv,
+ &sys_time_spec);
+
+ if (mkret != KERN_SUCCESS)
erl_exit(ERTS_ABORT_EXIT,
"clock_get_time(%s, _) failed\n",
- MONOTONIC_CLOCK_ID);
- }
- if (skret != KERN_SUCCESS) {
+ internal_state.r.o.mach.clock.monotonic.name);
+ if (skret != KERN_SUCCESS)
erl_exit(ERTS_ABORT_EXIT,
"clock_get_time(%s, _) failed\n",
- WALL_CLOCK_ID);
- }
- task = mach_task_self();
- mach_port_deallocate(task, host);
- mach_port_deallocate(task, mclk_srv);
- mach_port_deallocate(task, sclk_srv);
+ internal_state.r.o.mach.clock.wall.name);
- mtime = (ErtsMonotonicTime) mon_time_spec.tv_sec;
- mtime *= (ErtsMonotonicTime) 1000*1000*1000;
- mtime += (ErtsMonotonicTime) mon_time_spec.tv_nsec;
- stime = (ErtsSystemTime) sys_time_spec.tv_sec;
- stime *= (ErtsSystemTime) 1000*1000*1000;
- stime += (ErtsSystemTime) sys_time_spec.tv_nsec;
- *mtimep = mtime;
- *stimep = stime;
+ *mtimep = (ErtsMonotonicTime) ERTS_TimeSpec2Sint64(&mon_time_spec);
+ *stimep = (ErtsSystemTime) ERTS_TimeSpec2Sint64(&sys_time_spec);
}
#endif /* defined(OS_SYSTEM_TIME_USING_MACH_CLOCK_GET_TIME) */
#endif /* defined(OS_MONOTONIC_TIME_USING_MACH_CLOCK_GET_TIME) */
+#if defined(SYS_HRTIME_USING_MACH_CLOCK_GET_TIME)
+
+#define ERTS_HAVE_ERTS_SYS_HRTIME_IMPL__
+
+ErtsSysHrTime
+erts_sys_hrtime(void)
+{
+ return (ErtsSysHrTime)
+ mach_clock_get_time(&internal_state.r.o.mach.clock.monotonic);
+}
+
+#endif /* defined(SYS_HRTIME_USING_MACH_CLOCK_GET_TIME) */
+
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *\
* Solaris gethrtime() - OS monotonic time *
\* */
@@ -715,6 +820,10 @@ ErtsMonotonicTime erts_os_monotonic_time(void)
return (ErtsMonotonicTime) gethrtime();
}
+#endif /* defined(OS_MONOTONIC_TIME_USING_GETHRTIME) */
+
+#if defined(SYS_HRTIME_USING_GETHRTIME)
+
#define ERTS_HAVE_ERTS_SYS_HRTIME_IMPL__
ErtsSysHrTime
@@ -723,7 +832,7 @@ erts_sys_hrtime(void)
return (ErtsSysHrTime) gethrtime();
}
-#endif /* defined(OS_MONOTONIC_TIME_USING_GETHRTIME) */
+#endif /* defined(SYS_HRTIME_USING_GETHRTIME) */
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *\
* gettimeofday() - OS system time *
diff --git a/erts/emulator/sys/win32/erl_poll.c b/erts/emulator/sys/win32/erl_poll.c
index 5a62b00a68..937a678702 100644
--- a/erts/emulator/sys/win32/erl_poll.c
+++ b/erts/emulator/sys/win32/erl_poll.c
@@ -25,6 +25,7 @@
#include "sys.h"
#include "erl_alloc.h"
#include "erl_poll.h"
+#include "erl_time.h"
/*
* Some debug macros
diff --git a/erts/emulator/sys/win32/erl_win_sys.h b/erts/emulator/sys/win32/erl_win_sys.h
index 5181d6b584..9ddc0fbb41 100644
--- a/erts/emulator/sys/win32/erl_win_sys.h
+++ b/erts/emulator/sys/win32/erl_win_sys.h
@@ -224,7 +224,7 @@ erts_os_monotonic_time(void)
ERTS_GLB_INLINE void
erts_os_times(ErtsMonotonicTime *mtimep, ErtsSystemTime *stimep)
{
- return (*erts_sys_time_data__.r.o.os_times)(mtimep, stimep);
+ (*erts_sys_time_data__.r.o.os_times)(mtimep, stimep);
}
ERTS_GLB_INLINE ErtsSysHrTime
diff --git a/erts/emulator/sys/win32/sys_time.c b/erts/emulator/sys/win32/sys_time.c
index b292d9279e..7da060a7a7 100644
--- a/erts/emulator/sys/win32/sys_time.c
+++ b/erts/emulator/sys/win32/sys_time.c
@@ -28,6 +28,9 @@
#include "erl_os_monotonic_time_extender.h"
#include "erl_time.h"
+/* Need to look more closely at qpc before use... */
+#define ERTS_DISABLE_USE_OF_QPC_FOR_MONOTONIC_TIME 1
+
#define LL_LITERAL(X) ERTS_I64_LITERAL(X)
/******************* Routines for time measurement *********************/
@@ -362,10 +365,11 @@ sys_init_time(ErtsSysInitTimeResult *init_resp)
if (!internal_state.r.o.pQueryPerformanceCounter)
goto get_tick_count64;
- if (pf.QuadPart < (((LONGLONG) 1) << 32)) {
- internal_state.r.o.pcf = (Uint32) pf.QuadPart;
- sys_hrtime_func = sys_hrtime_qpc;
- }
+ if (pf.QuadPart > (((LONGLONG) 1) << 32))
+ goto get_tick_count64;
+
+ internal_state.r.o.pcf = (Uint32) pf.QuadPart;
+ sys_hrtime_func = sys_hrtime_qpc;
/*
* We only use QueryPerformanceCounter() for
@@ -377,6 +381,9 @@ sys_init_time(ErtsSysInitTimeResult *init_resp)
if (pf.QuadPart < (LONGLONG) 1000*1000*1000)
goto get_tick_count64;
+ if (ERTS_DISABLE_USE_OF_QPC_FOR_MONOTONIC_TIME)
+ goto get_tick_count64;
+
init_resp->os_monotonic_time_info.func = "QueryPerformanceCounter";
init_resp->os_monotonic_time_info.locked_use = 0;
time_unit = (ErtsMonotonicTime) pf.QuadPart;
@@ -391,6 +398,7 @@ sys_init_time(ErtsSysInitTimeResult *init_resp)
erts_sys_time_data__.r.o.os_times = os_times_func;
init_resp->os_monotonic_time_unit = time_unit;
init_resp->have_os_monotonic_time = 1;
+ init_resp->have_corrected_os_monotonic_time = 0;
init_resp->sys_clock_resolution = 1;
init_resp->os_system_time_info.func = "GetSystemTime";