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-rw-r--r--erts/emulator/beam/erl_driver.h92
-rw-r--r--erts/emulator/beam/erl_drv_nif.h84
-rw-r--r--erts/emulator/beam/erl_nif.c20
-rw-r--r--erts/emulator/beam/erl_nif.h62
-rw-r--r--erts/emulator/beam/erl_nif_api_funcs.h6
-rw-r--r--erts/emulator/beam/erl_time.h4
-rw-r--r--erts/emulator/beam/erl_time_sup.c145
-rw-r--r--erts/emulator/beam/io.c23
8 files changed, 327 insertions, 109 deletions
diff --git a/erts/emulator/beam/erl_driver.h b/erts/emulator/beam/erl_driver.h
index dbb4d719c1..7ab58e336b 100644
--- a/erts/emulator/beam/erl_driver.h
+++ b/erts/emulator/beam/erl_driver.h
@@ -37,47 +37,6 @@
# endif
#endif
-#ifdef SIZEOF_CHAR
-# define SIZEOF_CHAR_SAVED__ SIZEOF_CHAR
-# undef SIZEOF_CHAR
-#endif
-#ifdef SIZEOF_SHORT
-# define SIZEOF_SHORT_SAVED__ SIZEOF_SHORT
-# undef SIZEOF_SHORT
-#endif
-#ifdef SIZEOF_INT
-# define SIZEOF_INT_SAVED__ SIZEOF_INT
-# undef SIZEOF_INT
-#endif
-#ifdef SIZEOF_LONG
-# define SIZEOF_LONG_SAVED__ SIZEOF_LONG
-# undef SIZEOF_LONG
-#endif
-#ifdef SIZEOF_LONG_LONG
-# define SIZEOF_LONG_LONG_SAVED__ SIZEOF_LONG_LONG
-# undef SIZEOF_LONG_LONG
-#endif
-#ifdef HALFWORD_HEAP_EMULATOR
-# define HALFWORD_HEAP_EMULATOR_SAVED__ HALFWORD_HEAP_EMULATOR
-# undef HALFWORD_HEAP_EMULATOR
-#endif
-#include "erl_int_sizes_config.h"
-#if defined(SIZEOF_CHAR_SAVED__) && SIZEOF_CHAR_SAVED__ != SIZEOF_CHAR
-# error SIZEOF_CHAR mismatch
-#endif
-#if defined(SIZEOF_SHORT_SAVED__) && SIZEOF_SHORT_SAVED__ != SIZEOF_SHORT
-# error SIZEOF_SHORT mismatch
-#endif
-#if defined(SIZEOF_INT_SAVED__) && SIZEOF_INT_SAVED__ != SIZEOF_INT
-# error SIZEOF_INT mismatch
-#endif
-#if defined(SIZEOF_LONG_SAVED__) && SIZEOF_LONG_SAVED__ != SIZEOF_LONG
-# error SIZEOF_LONG mismatch
-#endif
-#if defined(SIZEOF_LONG_LONG_SAVED__) && SIZEOF_LONG_LONG_SAVED__ != SIZEOF_LONG_LONG
-# error SIZEOF_LONG_LONG mismatch
-#endif
-
/* This is OK to override by the NIF/driver implementor */
#if defined(HALFWORD_HEAP_EMULATOR_SAVED__) && !defined(HALFWORD_HEAP_EMULATOR)
#define HALFWORD_HEAP_EMULATOR HALFWORD_HEAP_EMULATOR_SAVED__
@@ -134,7 +93,7 @@ typedef struct {
#define ERL_DRV_EXTENDED_MARKER (0xfeeeeeed)
#define ERL_DRV_EXTENDED_MAJOR_VERSION 3
-#define ERL_DRV_EXTENDED_MINOR_VERSION 2
+#define ERL_DRV_EXTENDED_MINOR_VERSION 3
/*
* The emulator will refuse to load a driver with a major version
@@ -176,28 +135,12 @@ typedef struct {
/*
* Integer types
*/
-#if defined(__WIN32__) && (SIZEOF_VOID_P == 8)
-typedef unsigned __int64 ErlDrvTermData;
-typedef unsigned __int64 ErlDrvUInt;
-typedef signed __int64 ErlDrvSInt;
-#else
-typedef unsigned long ErlDrvTermData;
-typedef unsigned long ErlDrvUInt;
-typedef signed long ErlDrvSInt;
-#endif
-#if defined(__WIN32__)
-typedef unsigned __int64 ErlDrvUInt64;
-typedef __int64 ErlDrvSInt64;
-#elif SIZEOF_LONG == 8
-typedef unsigned long ErlDrvUInt64;
-typedef long ErlDrvSInt64;
-#elif SIZEOF_LONG_LONG == 8
-typedef unsigned long long ErlDrvUInt64;
-typedef long long ErlDrvSInt64;
-#else
-#error No 64-bit integer type
-#endif
+typedef ErlNapiUInt64 ErlDrvUInt64;
+typedef ErlNapiSInt64 ErlDrvSInt64;
+typedef ErlNapiUInt ErlDrvUInt;
+typedef ErlNapiSInt ErlDrvSInt;
+typedef ErlNapiUInt ErlDrvTermData;
#if defined(__WIN32__) || defined(_WIN32)
typedef ErlDrvUInt ErlDrvSizeT;
@@ -250,6 +193,17 @@ typedef struct {
unsigned long microsecs;
} ErlDrvNowData;
+typedef ErlDrvSInt64 ErlDrvTime;
+
+#define ERL_DRV_TIME_ERROR ((ErlDrvSInt64) ERTS_NAPI_TIME_ERROR__)
+
+typedef enum {
+ ERL_DRV_SEC = ERTS_NAPI_SEC__,
+ ERL_DRV_MSEC = ERTS_NAPI_MSEC__,
+ ERL_DRV_USEC = ERTS_NAPI_USEC__,
+ ERL_DRV_NSEC = ERTS_NAPI_NSEC__
+} ErlDrvTimeUnit;
+
/*
* Error codes that can be return from driver.
*/
@@ -685,8 +639,16 @@ EXTERN long driver_async(ErlDrvPort ix,
EXTERN int driver_lock_driver(ErlDrvPort ix);
/* Get the current 'now' timestamp (analogue to erlang:now()) */
-EXTERN int driver_get_now(ErlDrvNowData *now);
-
+EXTERN int driver_get_now(ErlDrvNowData *now) ERL_DRV_DEPRECATED_FUNC;
+
+/* Erlang Monotonic Time */
+EXTERN ErlDrvTime erl_drv_monotonic_time(ErlDrvTimeUnit time_unit);
+/* Time offset between Erlang Monotonic Time and Erlang System Time */
+EXTERN ErlDrvTime erl_drv_time_offset(ErlDrvTimeUnit time_unit);
+/* Time unit conversion */
+EXTERN ErlDrvTime erl_drv_convert_time_unit(ErlDrvTime val,
+ ErlDrvTimeUnit from,
+ ErlDrvTimeUnit to);
/* These were removed from the ANSI version, now they're back. */
diff --git a/erts/emulator/beam/erl_drv_nif.h b/erts/emulator/beam/erl_drv_nif.h
index e2385f63f4..f6b946ae82 100644
--- a/erts/emulator/beam/erl_drv_nif.h
+++ b/erts/emulator/beam/erl_drv_nif.h
@@ -50,6 +50,90 @@ typedef enum {
} ErlDrvDirtyJobFlags;
#endif
+#ifdef SIZEOF_CHAR
+# define SIZEOF_CHAR_SAVED__ SIZEOF_CHAR
+# undef SIZEOF_CHAR
+#endif
+#ifdef SIZEOF_SHORT
+# define SIZEOF_SHORT_SAVED__ SIZEOF_SHORT
+# undef SIZEOF_SHORT
+#endif
+#ifdef SIZEOF_INT
+# define SIZEOF_INT_SAVED__ SIZEOF_INT
+# undef SIZEOF_INT
+#endif
+#ifdef SIZEOF_LONG
+# define SIZEOF_LONG_SAVED__ SIZEOF_LONG
+# undef SIZEOF_LONG
+#endif
+#ifdef SIZEOF_LONG_LONG
+# define SIZEOF_LONG_LONG_SAVED__ SIZEOF_LONG_LONG
+# undef SIZEOF_LONG_LONG
+#endif
+#ifdef HALFWORD_HEAP_EMULATOR
+# define HALFWORD_HEAP_EMULATOR_SAVED__ HALFWORD_HEAP_EMULATOR
+# undef HALFWORD_HEAP_EMULATOR
+#endif
+#include "erl_int_sizes_config.h"
+#if defined(SIZEOF_CHAR_SAVED__) && SIZEOF_CHAR_SAVED__ != SIZEOF_CHAR
+# error SIZEOF_CHAR mismatch
+#endif
+#if defined(SIZEOF_SHORT_SAVED__) && SIZEOF_SHORT_SAVED__ != SIZEOF_SHORT
+# error SIZEOF_SHORT mismatch
+#endif
+#if defined(SIZEOF_INT_SAVED__) && SIZEOF_INT_SAVED__ != SIZEOF_INT
+# error SIZEOF_INT mismatch
+#endif
+#if defined(SIZEOF_LONG_SAVED__) && SIZEOF_LONG_SAVED__ != SIZEOF_LONG
+# error SIZEOF_LONG mismatch
+#endif
+#if defined(SIZEOF_LONG_LONG_SAVED__) && SIZEOF_LONG_LONG_SAVED__ != SIZEOF_LONG_LONG
+# error SIZEOF_LONG_LONG mismatch
+#endif
+
+#if !defined(__GNUC__) && (defined(__WIN32__) || defined(_WIN32) || defined(_WIN32_))
+typedef unsigned __int64 ErlNapiUInt64;
+typedef signed __int64 ErlNapiSInt64;
+#define ERL_NAPI_SINT64_MAX__ 9223372036854775807i64
+#define ERL_NAPI_SINT64_MIN__ (-ERL_NAPI_SINT64_MAX__ - 1i64)
+#elif SIZEOF_LONG == 8
+typedef unsigned long ErlNapiUInt64;
+typedef signed long ErlNapiSInt64;
+#define ERL_NAPI_SINT64_MAX__ 9223372036854775807L
+#define ERL_NAPI_SINT64_MIN__ (-ERL_NAPI_SINT64_MAX__ - 1L)
+#elif SIZEOF_LONG_LONG == 8
+typedef unsigned long long ErlNapiUInt64;
+typedef signed long long ErlNapiSInt64;
+#define ERL_NAPI_SINT64_MAX__ 9223372036854775807LL
+#define ERL_NAPI_SINT64_MIN__ (-ERL_NAPI_SINT64_MAX__ - 1LL)
+#else
+# error No 64-bit integer type
+#endif
+
+#if SIZEOF_VOID_P == 8
+typedef ErlNapiUInt64 ErlNapiUInt;
+typedef ErlNapiSInt64 ErlNapiSInt;
+#elif SIZEOF_VOID_P == 4
+# if SIZEOF_LONG == SIZEOF_VOID_P
+typedef unsigned long ErlNapiUInt;
+typedef signed long ErlNapiSInt;
+# elif SIZEOF_INT == SIZEOF_VOID_P
+typedef unsigned int ErlNapiUInt;
+typedef signed int ErlNapiSInt;
+# else
+# error No 32-bit integer type
+# endif
+#else
+# error Not support arch
+#endif
+
+#define ERTS_NAPI_TIME_ERROR__ ERL_NAPI_SINT64_MIN__
+
+#define ERTS_NAPI_SEC__ 0
+#define ERTS_NAPI_MSEC__ 1
+#define ERTS_NAPI_USEC__ 2
+#define ERTS_NAPI_NSEC__ 3
+
#endif /* __ERL_DRV_NIF_H__ */
diff --git a/erts/emulator/beam/erl_nif.c b/erts/emulator/beam/erl_nif.c
index d7a2076d85..3141b05e2b 100644
--- a/erts/emulator/beam/erl_nif.c
+++ b/erts/emulator/beam/erl_nif.c
@@ -1175,6 +1175,26 @@ void enif_thread_exit(void *resp) { erl_drv_thread_exit(resp); }
int enif_thread_join(ErlNifTid tid, void **respp) { return erl_drv_thread_join(tid,respp); }
int enif_getenv(const char *key, char *value, size_t *value_size) { return erl_drv_getenv(key, value, value_size); }
+ErlNifTime enif_monotonic_time(ErlNifTimeUnit time_unit)
+{
+ return (ErlNifTime) erts_napi_monotonic_time((int) time_unit);
+}
+
+ErlNifTime enif_time_offset(ErlNifTimeUnit time_unit)
+{
+ return (ErlNifTime) erts_napi_time_offset((int) time_unit);
+}
+
+ErlNifTime
+enif_convert_time_unit(ErlNifTime val,
+ ErlNifTimeUnit from,
+ ErlNifTimeUnit to)
+{
+ return (ErlNifTime) erts_napi_convert_time_unit((ErtsMonotonicTime) val,
+ (int) from,
+ (int) to);
+}
+
int enif_fprintf(void* filep, const char* format, ...)
{
int ret;
diff --git a/erts/emulator/beam/erl_nif.h b/erts/emulator/beam/erl_nif.h
index 5e39343e9b..75070ad901 100644
--- a/erts/emulator/beam/erl_nif.h
+++ b/erts/emulator/beam/erl_nif.h
@@ -49,9 +49,10 @@
** add ErlNifFunc flags
** 2.8: 18.0 add enif_has_pending_exception
** 2.9: 18.2 enif_getenv
+** 2.10: Time API
*/
#define ERL_NIF_MAJOR_VERSION 2
-#define ERL_NIF_MINOR_VERSION 9
+#define ERL_NIF_MINOR_VERSION 10
/*
* The emulator will refuse to load a nif-lib with a major version
@@ -67,63 +68,36 @@
#include <stdlib.h>
-#ifdef SIZEOF_CHAR
-# define SIZEOF_CHAR_SAVED__ SIZEOF_CHAR
-# undef SIZEOF_CHAR
-#endif
-#ifdef SIZEOF_SHORT
-# define SIZEOF_SHORT_SAVED__ SIZEOF_SHORT
-# undef SIZEOF_SHORT
-#endif
-#ifdef SIZEOF_INT
-# define SIZEOF_INT_SAVED__ SIZEOF_INT
-# undef SIZEOF_INT
-#endif
-#ifdef SIZEOF_LONG
-# define SIZEOF_LONG_SAVED__ SIZEOF_LONG
-# undef SIZEOF_LONG
-#endif
-#ifdef SIZEOF_LONG_LONG
-# define SIZEOF_LONG_LONG_SAVED__ SIZEOF_LONG_LONG
-# undef SIZEOF_LONG_LONG
-#endif
-#ifdef HALFWORD_HEAP_EMULATOR
-# define HALFWORD_HEAP_EMULATOR_SAVED__ HALFWORD_HEAP_EMULATOR
-# undef HALFWORD_HEAP_EMULATOR
-#endif
-#include "erl_int_sizes_config.h"
-
#ifdef __cplusplus
extern "C" {
#endif
-#if (defined(__WIN32__) || defined(_WIN32) || defined(_WIN32_))
-typedef unsigned __int64 ErlNifUInt64;
-typedef __int64 ErlNifSInt64;
-#elif SIZEOF_LONG == 8
-typedef unsigned long ErlNifUInt64;
-typedef long ErlNifSInt64;
-#elif SIZEOF_LONG_LONG == 8
-typedef unsigned long long ErlNifUInt64;
-typedef long long ErlNifSInt64;
-#else
-#error No 64-bit integer type
-#endif
+typedef ErlNapiUInt64 ErlNifUInt64;
+typedef ErlNapiSInt64 ErlNifSInt64;
+typedef ErlNapiUInt ErlNifUInt;
+typedef ErlNapiSInt ErlNifSInt;
#ifdef HALFWORD_HEAP_EMULATOR
# define ERL_NIF_VM_VARIANT "beam.halfword"
typedef unsigned int ERL_NIF_TERM;
#else
# define ERL_NIF_VM_VARIANT "beam.vanilla"
-# if SIZEOF_LONG == SIZEOF_VOID_P
-typedef unsigned long ERL_NIF_TERM;
-# elif SIZEOF_LONG_LONG == SIZEOF_VOID_P
-typedef unsigned long long ERL_NIF_TERM;
-# endif
+typedef ErlNifUInt ERL_NIF_TERM;
#endif
typedef ERL_NIF_TERM ERL_NIF_UINT;
+typedef ErlNifSInt64 ErlNifTime;
+
+#define ERL_NIF_TIME_ERROR ((ErlNifSInt64) ERTS_NAPI_TIME_ERROR__)
+
+typedef enum {
+ ERL_NIF_SEC = ERTS_NAPI_SEC__,
+ ERL_NIF_MSEC = ERTS_NAPI_MSEC__,
+ ERL_NIF_USEC = ERTS_NAPI_USEC__,
+ ERL_NIF_NSEC = ERTS_NAPI_NSEC__
+} ErlNifTimeUnit;
+
struct enif_environment_t;
typedef struct enif_environment_t ErlNifEnv;
diff --git a/erts/emulator/beam/erl_nif_api_funcs.h b/erts/emulator/beam/erl_nif_api_funcs.h
index 08b9afc6af..1448a508a2 100644
--- a/erts/emulator/beam/erl_nif_api_funcs.h
+++ b/erts/emulator/beam/erl_nif_api_funcs.h
@@ -160,6 +160,9 @@ ERL_NIF_API_FUNC_DECL(ERL_NIF_TERM,enif_schedule_nif,(ErlNifEnv*,const char*,int
ERL_NIF_API_FUNC_DECL(int, enif_has_pending_exception, (ErlNifEnv *env, ERL_NIF_TERM* reason));
ERL_NIF_API_FUNC_DECL(ERL_NIF_TERM, enif_raise_exception, (ErlNifEnv *env, ERL_NIF_TERM reason));
ERL_NIF_API_FUNC_DECL(int,enif_getenv,(const char* key, char* value, size_t* value_size));
+ERL_NIF_API_FUNC_DECL(ErlNifTime, enif_monotonic_time, (ErlNifTimeUnit));
+ERL_NIF_API_FUNC_DECL(ErlNifTime, enif_time_offset, (ErlNifTimeUnit));
+ERL_NIF_API_FUNC_DECL(ErlNifTime, enif_convert_time_unit, (ErlNifTime, ErlNifTimeUnit, ErlNifTimeUnit));
/*
** ADD NEW ENTRIES HERE (before this comment) !!!
@@ -312,6 +315,9 @@ ERL_NIF_API_FUNC_DECL(int,enif_is_on_dirty_scheduler,(ErlNifEnv*));
# define enif_has_pending_exception ERL_NIF_API_FUNC_MACRO(enif_has_pending_exception)
# define enif_raise_exception ERL_NIF_API_FUNC_MACRO(enif_raise_exception)
# define enif_getenv ERL_NIF_API_FUNC_MACRO(enif_getenv)
+# define enif_monotonic_time ERL_NIF_API_FUNC_MACRO(enif_monotonic_time)
+# define enif_time_offset ERL_NIF_API_FUNC_MACRO(enif_time_offset)
+# define enif_convert_time_unit ERL_NIF_API_FUNC_MACRO(enif_convert_time_unit)
/*
** ADD NEW ENTRIES HERE (before this comment)
diff --git a/erts/emulator/beam/erl_time.h b/erts/emulator/beam/erl_time.h
index 43e543e035..93a0d556bf 100644
--- a/erts/emulator/beam/erl_time.h
+++ b/erts/emulator/beam/erl_time.h
@@ -133,6 +133,10 @@ typedef struct {
extern ErtsTimeSupData erts_time_sup__;
+ErtsMonotonicTime erts_napi_monotonic_time(int time_unit);
+ErtsMonotonicTime erts_napi_time_offset(int time_unit);
+ErtsMonotonicTime erts_napi_convert_time_unit(ErtsMonotonicTime val, int from, int to);
+
ERTS_GLB_INLINE Uint64
erts_time_unit_conversion(Uint64 value,
Uint32 from_time_unit,
diff --git a/erts/emulator/beam/erl_time_sup.c b/erts/emulator/beam/erl_time_sup.c
index 2c87b8e81c..5f12c7809a 100644
--- a/erts/emulator/beam/erl_time_sup.c
+++ b/erts/emulator/beam/erl_time_sup.c
@@ -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);
@@ -948,6 +951,8 @@ 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);
@@ -2197,6 +2202,146 @@ 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)
diff --git a/erts/emulator/beam/io.c b/erts/emulator/beam/io.c
index c64c8802b9..2bd31ee97e 100644
--- a/erts/emulator/beam/io.c
+++ b/erts/emulator/beam/io.c
@@ -50,6 +50,7 @@
#include "erl_map.h"
#include "erl_bif_unique.h"
#include "erl_hl_timer.h"
+#include "erl_time.h"
extern ErlDrvEntry fd_driver_entry;
#ifndef __OSE__
@@ -6762,6 +6763,28 @@ driver_get_now(ErlDrvNowData *now_data)
return 0;
}
+ErlDrvTime
+erl_drv_monotonic_time(ErlDrvTimeUnit time_unit)
+{
+ return (ErlDrvTime) erts_napi_monotonic_time((int) time_unit);
+}
+
+ErlDrvTime
+erl_drv_time_offset(ErlDrvTimeUnit time_unit)
+{
+ return (ErlDrvTime) erts_napi_time_offset((int) time_unit);
+}
+
+ErlDrvTime
+erl_drv_convert_time_unit(ErlDrvTime val,
+ ErlDrvTimeUnit from,
+ ErlDrvTimeUnit to)
+{
+ return (ErlDrvTime) erts_napi_convert_time_unit((ErtsMonotonicTime) val,
+ (int) from,
+ (int) to);
+}
+
static void ref_to_driver_monitor(Eterm ref, ErlDrvMonitor *mon)
{
RefThing *refp;
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-13 02:13:17 +0000