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-rw-r--r--erts/doc/src/erl_driver.xml112
-rw-r--r--erts/doc/src/erl_nif.xml112
-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
-rw-r--r--erts/emulator/sys/win32/erl_win_dyn_driver.h14
-rw-r--r--erts/emulator/test/nif_SUITE.erl153
-rw-r--r--erts/emulator/test/nif_SUITE_data/nif_SUITE.c94
13 files changed, 809 insertions, 112 deletions
diff --git a/erts/doc/src/erl_driver.xml b/erts/doc/src/erl_driver.xml
index e717fc0c4e..e338e95938 100644
--- a/erts/doc/src/erl_driver.xml
+++ b/erts/doc/src/erl_driver.xml
@@ -347,6 +347,16 @@
the driver does not handle sizes that overflow an <c>int</c>
all will work as before.</p>
</item>
+ <tag><marker id="time_measurement"/>Time Measurement</tag>
+ <item><p>Support for time measurement in drivers:
+ <list>
+ <item><seealso marker="#ErlDrvTime"><c>ErlDrvTime</c></seealso></item>
+ <item><seealso marker="#ErlDrvTimeUnit"><c>ErlDrvTimeUnit</c></seealso></item>
+ <item><seealso marker="#erl_drv_monotonic_time"><c>erl_drv_monotonic_time()</c></seealso></item>
+ <item><seealso marker="#erl_drv_time_offset"><c>erl_drv_time_offset()</c></seealso></item>
+ <item><seealso marker="#erl_drv_convert_time_unit"><c>erl_drv_convert_time_unit()</c></seealso></item>
+ </list></p>
+ </item>
</taglist>
</section>
@@ -860,6 +870,24 @@ typedef struct ErlIOVec {
<seealso marker="#erl_drv_tsd_get">erl_drv_tsd_get()</seealso>.
</p>
</item>
+ <tag><marker id="ErlDrvTime"/>ErlDrvTime</tag>
+ <item>
+ <p>A signed 64-bit integer type for representation of time.</p>
+ </item>
+ <tag><marker id="ErlDrvTimeUnit"/>ErlDrvTimeUnit</tag>
+ <item>
+ <p>An enumeration of time units supported by the driver API:</p>
+ <taglist>
+ <tag><c>ERL_DRV_SEC</c></tag>
+ <item><p>Seconds</p></item>
+ <tag><c>ERL_DRV_MSEC</c></tag>
+ <item><p>Milliseconds</p></item>
+ <tag><c>ERL_DRV_USEC</c></tag>
+ <item><p>Microseconds</p></item>
+ <tag><c>ERL_DRV_NSEC</c></tag>
+ <item><p>Nanoseconds</p></item>
+ </taglist>
+ </item>
</taglist>
</section>
@@ -1023,6 +1051,10 @@ typedef struct ErlIOVec {
<fsummary>Read a system timestamp</fsummary>
<desc>
<marker id="driver_get_now"></marker>
+ <warning><p><em>This function is deprecated! Do not use it!</em>
+ Use the documented
+ <seealso marker="#time_measurement">time measurement functionality</seealso>
+ instead.</p></warning>
<p>This function reads a timestamp into the memory pointed to by
the parameter <c>now</c>. See the description of <seealso marker="#ErlDrvNowData">ErlDrvNowData</seealso> for
specification of its fields. </p>
@@ -2997,6 +3029,86 @@ ERL_DRV_MAP int sz
</desc>
</func>
+ <func>
+ <name><ret>ErlDrvTime</ret><nametext>erl_drv_monotonic_time(ErlDrvTimeUnit time_unit)</nametext></name>
+ <fsummary>Get Erlang Monotonic Time</fsummary>
+ <desc>
+ <marker id="erl_drv_monotonic_time"></marker>
+ <p>Arguments:</p>
+ <taglist>
+ <tag><c>time_unit</c></tag>
+ <item>Time unit of returned value.</item>
+ </taglist>
+ <p>
+ Returns
+ <seealso marker="time_correction#Erlang_Monotonic_Time">Erlang
+ monotonic time</seealso>. Note that it is not uncommon with
+ negative values.
+ </p>
+ <p>Returns <c>ERL_DRV_TIME_ERROR</c> if called with an invalid
+ time unit argument, or if called from a thread that is not a
+ scheduler thread.</p>
+ <p>See also:</p>
+ <list>
+ <item><seealso marker="#ErlDrvTime"><c>ErlDrvTime</c></seealso></item>
+ <item><seealso marker="#ErlDrvTimeUnit"><c>ErlDrvTimeUnit</c></seealso></item>
+ </list>
+ </desc>
+ </func>
+
+ <func>
+ <name><ret>ErlDrvTime</ret><nametext>erl_drv_time_offset(ErlDrvTimeUnit time_unit)</nametext></name>
+ <fsummary>Get current Time Offset</fsummary>
+ <desc>
+ <marker id="erl_drv_time_offset"></marker>
+ <p>Arguments:</p>
+ <taglist>
+ <tag><c>time_unit</c></tag>
+ <item>Time unit of returned value.</item>
+ </taglist>
+ <p>Returns the current time offset between
+ <seealso marker="time_correction#Erlang_Monotonic_Time">Erlang monotonic time</seealso>
+ and
+ <seealso marker="time_correction#Erlang_System_Time">Erlang system time</seealso>
+ converted into the <c>time_unit</c> passed as argument.</p>
+ <p>Returns <c>ERL_DRV_TIME_ERROR</c> if called with an invalid
+ time unit argument, or if called from a thread that is not a
+ scheduler thread.</p>
+ <p>See also:</p>
+ <list>
+ <item><seealso marker="#ErlDrvTime"><c>ErlDrvTime</c></seealso></item>
+ <item><seealso marker="#ErlDrvTimeUnit"><c>ErlDrvTimeUnit</c></seealso></item>
+ </list>
+ </desc>
+ </func>
+
+ <func>
+ <name><ret>ErlDrvTime</ret><nametext>erl_drv_convert_time_unit(ErlDrvTime val, ErlDrvTimeUnit from, ErlDrvTimeUnit to)</nametext></name>
+ <fsummary>Convert time unit of a time value</fsummary>
+ <desc>
+ <marker id="erl_drv_convert_time_unit"></marker>
+ <p>Arguments:</p>
+ <taglist>
+ <tag><c>val</c></tag>
+ <item>Value to convert time unit for.</item>
+ <tag><c>from</c></tag>
+ <item>Time unit of <c>val</c>.</item>
+ <tag><c>to</c></tag>
+ <item>Time unit of returned value.</item>
+ </taglist>
+ <p>Converts the <c>val</c> value of time unit <c>from</c> to
+ the corresponding value of time unit <c>to</c>. The result is
+ rounded using the floor function.</p>
+ <p>Returns <c>ERL_DRV_TIME_ERROR</c> if called with an invalid
+ time unit argument.</p>
+ <p>See also:</p>
+ <list>
+ <item><seealso marker="#ErlDrvTime"><c>ErlDrvTime</c></seealso></item>
+ <item><seealso marker="#ErlDrvTimeUnit"><c>ErlDrvTimeUnit</c></seealso></item>
+ </list>
+ </desc>
+ </func>
+
</funcs>
<section>
<title>SEE ALSO</title>
diff --git a/erts/doc/src/erl_nif.xml b/erts/doc/src/erl_nif.xml
index 2d8706169f..420c9fea38 100644
--- a/erts/doc/src/erl_nif.xml
+++ b/erts/doc/src/erl_nif.xml
@@ -317,6 +317,17 @@ ok
libraries might however fail if deprecated features are used.
</p></item>
+ <tag><marker id="time_measurement"/>Time Measurement</tag>
+ <item><p>Support for time measurement in NIF libraries:
+ <list>
+ <item><seealso marker="#ErlNifTime"><c>ErlNifTime</c></seealso></item>
+ <item><seealso marker="#ErlNifTimeUnit"><c>ErlNifTimeUnit</c></seealso></item>
+ <item><seealso marker="#enif_monotonic_time"><c>enif_monotonic_time()</c></seealso></item>
+ <item><seealso marker="#enif_time_offset"><c>enif_time_offset()</c></seealso></item>
+ <item><seealso marker="#enif_convert_time_unit"><c>enif_convert_time_unit()</c></seealso></item>
+ </list></p>
+ </item>
+
<tag>Long-running NIFs</tag>
<item><p><marker id="dirty_nifs"/>Native functions
<seealso marker="#lengthy_work">
@@ -560,6 +571,25 @@ typedef enum {
<item><p>A native signed 64-bit integer type.</p></item>
<tag><marker id="ErlNifUInt64"/>ErlNifUInt64</tag>
<item><p>A native unsigned 64-bit integer type.</p></item>
+
+ <tag><marker id="ErlNifTime"/>ErlNifTime</tag>
+ <item>
+ <p>A signed 64-bit integer type for representation of time.</p>
+ </item>
+ <tag><marker id="ErlNifTimeUnit"/>ErlNifTimeUnit</tag>
+ <item>
+ <p>An enumeration of time units supported by the NIF API:</p>
+ <taglist>
+ <tag><c>ERL_NIF_SEC</c></tag>
+ <item><p>Seconds</p></item>
+ <tag><c>ERL_NIF_MSEC</c></tag>
+ <item><p>Milliseconds</p></item>
+ <tag><c>ERL_NIF_USEC</c></tag>
+ <item><p>Microseconds</p></item>
+ <tag><c>ERL_NIF_NSEC</c></tag>
+ <item><p>Nanoseconds</p></item>
+ </taglist>
+ </item>
</taglist>
</section>
@@ -1486,6 +1516,88 @@ enif_map_iterator_destroy(env, &amp;iter);
<desc><p>Same as <seealso marker="erl_driver#erl_drv_tsd_set">erl_drv_tsd_set</seealso>.
</p></desc>
</func>
+
+
+ <func>
+ <name><ret>ErlNifTime</ret><nametext>enif_monotonic_time(ErlNifTimeUnit time_unit)</nametext></name>
+ <fsummary>Get Erlang Monotonic Time</fsummary>
+ <desc>
+ <marker id="enif_monotonic_time"></marker>
+ <p>Arguments:</p>
+ <taglist>
+ <tag><c>time_unit</c></tag>
+ <item>Time unit of returned value.</item>
+ </taglist>
+ <p>
+ Returns
+ <seealso marker="time_correction#Erlang_Monotonic_Time">Erlang
+ monotonic time</seealso>. Note that it is not uncommon with
+ negative values.
+ </p>
+ <p>Returns <c>ERL_NIF_TIME_ERROR</c> if called with an invalid
+ time unit argument, or if called from a thread that is not a
+ scheduler thread.</p>
+ <p>See also:</p>
+ <list>
+ <item><seealso marker="#ErlNifTime"><c>ErlNifTime</c></seealso></item>
+ <item><seealso marker="#ErlNifTimeUnit"><c>ErlNifTimeUnit</c></seealso></item>
+ </list>
+ </desc>
+ </func>
+
+ <func>
+ <name><ret>ErlNifTime</ret><nametext>enif_time_offset(ErlNifTimeUnit time_unit)</nametext></name>
+ <fsummary>Get current Time Offset</fsummary>
+ <desc>
+ <marker id="enif_time_offset"></marker>
+ <p>Arguments:</p>
+ <taglist>
+ <tag><c>time_unit</c></tag>
+ <item>Time unit of returned value.</item>
+ </taglist>
+ <p>Returns the current time offset between
+ <seealso marker="time_correction#Erlang_Monotonic_Time">Erlang monotonic time</seealso>
+ and
+ <seealso marker="time_correction#Erlang_System_Time">Erlang system time</seealso>
+ converted into the <c>time_unit</c> passed as argument.</p>
+ <p>Returns <c>ERL_NIF_TIME_ERROR</c> if called with an invalid
+ time unit argument, or if called from a thread that is not a
+ scheduler thread.</p>
+ <p>See also:</p>
+ <list>
+ <item><seealso marker="#ErlNifTime"><c>ErlNifTime</c></seealso></item>
+ <item><seealso marker="#ErlNifTimeUnit"><c>ErlNifTimeUnit</c></seealso></item>
+ </list>
+ </desc>
+ </func>
+
+ <func>
+ <name><ret>ErlNifTime</ret><nametext>enif_convert_time_unit(ErlNifTime val, ErlNifTimeUnit from, ErlNifTimeUnit to)</nametext></name>
+ <fsummary>Convert time unit of a time value</fsummary>
+ <desc>
+ <marker id="enif_convert_time_unit"></marker>
+ <p>Arguments:</p>
+ <taglist>
+ <tag><c>val</c></tag>
+ <item>Value to convert time unit for.</item>
+ <tag><c>from</c></tag>
+ <item>Time unit of <c>val</c>.</item>
+ <tag><c>to</c></tag>
+ <item>Time unit of returned value.</item>
+ </taglist>
+ <p>Converts the <c>val</c> value of time unit <c>from</c> to
+ the corresponding value of time unit <c>to</c>. The result is
+ rounded using the floor function.</p>
+ <p>Returns <c>ERL_NIF_TIME_ERROR</c> if called with an invalid
+ time unit argument.</p>
+ <p>See also:</p>
+ <list>
+ <item><seealso marker="#ErlNifTime"><c>ErlNifTime</c></seealso></item>
+ <item><seealso marker="#ErlNifTimeUnit"><c>ErlNifTimeUnit</c></seealso></item>
+ </list>
+ </desc>
+ </func>
+
</funcs>
<section>
<title>SEE ALSO</title>
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;
diff --git a/erts/emulator/sys/win32/erl_win_dyn_driver.h b/erts/emulator/sys/win32/erl_win_dyn_driver.h
index baac7c903e..9c699fdba0 100644
--- a/erts/emulator/sys/win32/erl_win_dyn_driver.h
+++ b/erts/emulator/sys/win32/erl_win_dyn_driver.h
@@ -103,6 +103,11 @@ WDD_TYPEDEF(ErlDrvSInt, driver_pdl_inc_refc, (ErlDrvPDL));
WDD_TYPEDEF(ErlDrvSInt, driver_pdl_dec_refc, (ErlDrvPDL));
WDD_TYPEDEF(void, driver_system_info, (ErlDrvSysInfo *, size_t));
WDD_TYPEDEF(int, driver_get_now, (ErlDrvNowData *));
+WDD_TYPEDEF(ErlDrvTime, erl_drv_monotonic_time, (ErlDrvTimeUnit));
+WDD_TYPEDEF(ErlDrvTime, erl_drv_time_offset, (ErlDrvTimeUnit));
+WDD_TYPEDEF(ErlDrvTime, erl_drv_convert_time_unit, (ErlDrvTime,
+ ErlDrvTimeUnit,
+ ErlDrvTimeUnit));
WDD_TYPEDEF(int, driver_monitor_process, (ErlDrvPort port,
ErlDrvTermData process,
ErlDrvMonitor *monitor));
@@ -217,6 +222,9 @@ typedef struct {
WDD_FTYPE(driver_pdl_dec_refc) *driver_pdl_dec_refc;
WDD_FTYPE(driver_system_info) *driver_system_info;
WDD_FTYPE(driver_get_now) *driver_get_now;
+ WDD_FTYPE(erl_drv_monotonic_time) *erl_drv_monotonic_time;
+ WDD_FTYPE(erl_drv_time_offset) *erl_drv_time_offset;
+ WDD_FTYPE(erl_drv_convert_time_unit) *erl_drv_convert_time_unit;
WDD_FTYPE(driver_monitor_process) *driver_monitor_process;
WDD_FTYPE(driver_demonitor_process) *driver_demonitor_process;
WDD_FTYPE(driver_get_monitored_process) *driver_get_monitored_process;
@@ -328,6 +336,9 @@ extern TWinDynDriverCallbacks WinDynDriverCallbacks;
#define driver_pdl_dec_refc (WinDynDriverCallbacks.driver_pdl_dec_refc)
#define driver_system_info (WinDynDriverCallbacks.driver_system_info)
#define driver_get_now (WinDynDriverCallbacks.driver_get_now)
+#define erl_drv_monotonic_time (WinDynDriverCallbacks.erl_drv_monotonic_time)
+#define erl_drv_time_offset (WinDynDriverCallbacks.erl_drv_time_offset)
+#define erl_drv_convert_time_unit (WinDynDriverCallbacks.erl_drv_convert_time_unit)
#define driver_monitor_process \
(WinDynDriverCallbacks.driver_monitor_process)
#define driver_demonitor_process \
@@ -463,6 +474,9 @@ do { \
((W).driver_pdl_dec_refc) = driver_pdl_dec_refc; \
((W).driver_system_info) = driver_system_info; \
((W).driver_get_now) = driver_get_now; \
+((W).erl_drv_monotonic_time) = erl_drv_monotonic_time; \
+((W).erl_drv_time_offset) = erl_drv_time_offset; \
+((W).erl_drv_convert_time_unit) = erl_drv_convert_time_unit; \
((W).driver_monitor_process) = driver_monitor_process; \
((W).driver_demonitor_process) = driver_demonitor_process; \
((W).driver_get_monitored_process) = driver_get_monitored_process; \
diff --git a/erts/emulator/test/nif_SUITE.erl b/erts/emulator/test/nif_SUITE.erl
index af2b955184..3d478654b1 100644
--- a/erts/emulator/test/nif_SUITE.erl
+++ b/erts/emulator/test/nif_SUITE.erl
@@ -42,7 +42,8 @@
otp_9668/1, consume_timeslice/1, dirty_nif/1, dirty_nif_send/1,
dirty_nif_exception/1, call_dirty_nif_exception/1, nif_schedule/1,
nif_exception/1, call_nif_exception/1,
- nif_nan_and_inf/1, nif_atom_too_long/1
+ nif_nan_and_inf/1, nif_atom_too_long/1,
+ nif_monotonic_time/1, nif_time_offset/1, nif_convert_time_unit/1
]).
-export([many_args_100/100]).
@@ -72,7 +73,8 @@ all() ->
otp_9828,
otp_9668, consume_timeslice,
nif_schedule, dirty_nif, dirty_nif_send, dirty_nif_exception,
- nif_exception, nif_nan_and_inf, nif_atom_too_long
+ nif_exception, nif_nan_and_inf, nif_atom_too_long,
+ nif_monotonic_time, nif_time_offset, nif_convert_time_unit
].
groups() ->
@@ -1783,6 +1785,148 @@ nif_raise_exceptions(NifFunc) ->
end
end, ok, ExcTerms).
+-define(ERL_NIF_TIME_ERROR, -9223372036854775808).
+-define(TIME_UNITS, [seconds, milli_seconds, micro_seconds, nano_seconds]).
+
+nif_monotonic_time(Config) ->
+ ?ERL_NIF_TIME_ERROR = monotonic_time(invalid_time_unit),
+ mtime_loop(1000000).
+
+mtime_loop(0) ->
+ ok;
+mtime_loop(N) ->
+ chk_mtime(?TIME_UNITS),
+ mtime_loop(N-1).
+
+chk_mtime([]) ->
+ ok;
+chk_mtime([TU|TUs]) ->
+ A = erlang:monotonic_time(TU),
+ B = monotonic_time(TU),
+ C = erlang:monotonic_time(TU),
+ try
+ true = A =< B,
+ true = B =< C
+ catch
+ _ : _ ->
+ ?t:fail({monotonic_time_missmatch, TU, A, B, C})
+ end,
+ chk_mtime(TUs).
+
+nif_time_offset(Config) ->
+ ?ERL_NIF_TIME_ERROR = time_offset(invalid_time_unit),
+ toffs_loop(1000000).
+
+toffs_loop(0) ->
+ ok;
+toffs_loop(N) ->
+ chk_toffs(?TIME_UNITS),
+ toffs_loop(N-1).
+
+chk_toffs([]) ->
+ ok;
+chk_toffs([TU|TUs]) ->
+ TO = erlang:time_offset(TU),
+ NifTO = time_offset(TU),
+ case TO =:= NifTO of
+ true ->
+ ok;
+ false ->
+ case erlang:system_info(time_warp_mode) of
+ no_time_warp ->
+ ?t:fail({time_offset_mismatch, TU, TO, NifTO});
+ _ ->
+ %% Most frequent time offset change
+ %% is currently only every 15:th
+ %% second so this should currently
+ %% work...
+ NTO = erlang:time_offset(TU),
+ case NifTO =:= NTO of
+ true ->
+ ok;
+ false ->
+ ?t:fail({time_offset_mismatch, TU, TO, NifTO, NTO})
+ end
+ end
+ end,
+ chk_toffs(TUs).
+
+nif_convert_time_unit(Config) ->
+ ?ERL_NIF_TIME_ERROR = convert_time_unit(0, seconds, invalid_time_unit),
+ ?ERL_NIF_TIME_ERROR = convert_time_unit(0, invalid_time_unit, seconds),
+ ?ERL_NIF_TIME_ERROR = convert_time_unit(0, invalid_time_unit, invalid_time_unit),
+ lists:foreach(fun (Offset) ->
+ lists:foreach(fun (Diff) ->
+ chk_ctu(Diff+(Offset*1000*1000*1000))
+ end,
+ [999999999999,
+ 99999999999,
+ 9999999999,
+ 999999999,
+ 99999999,
+ 9999999,
+ 999999,
+ 99999,
+ 999,
+ 99,
+ 9,
+ 1,
+ 11,
+ 101,
+ 1001,
+ 10001,
+ 100001,
+ 1000001,
+ 10000001,
+ 100000001,
+ 1000000001,
+ 100000000001,
+ 1000000000001,
+ 5,
+ 50,
+ 500,
+ 5000,
+ 50000,
+ 500000,
+ 5000000,
+ 50000000,
+ 500000000,
+ 5000000000,
+ 50000000000,
+ 500000000000])
+ end,
+ [-4711, -1000, -475, -5, -4, -3, -2, -1, 0,
+ 1, 2, 3, 4, 5, 475, 1000, 4711]),
+ ctu_loop(1000000).
+
+ctu_loop(0) ->
+ ok;
+ctu_loop(N) ->
+ chk_ctu(erlang:monotonic_time(nano_seconds)),
+ ctu_loop(N-1).
+
+chk_ctu(Time) ->
+ chk_ctu(Time, ?TIME_UNITS).
+
+chk_ctu(_Time, []) ->
+ ok;
+chk_ctu(Time, [FromTU|FromTUs]) ->
+ chk_ctu(Time, FromTU, ?TIME_UNITS),
+ chk_ctu(Time, FromTUs).
+
+chk_ctu(_Time, _FromTU, []) ->
+ ok;
+chk_ctu(Time, FromTU, [ToTU|ToTUs]) ->
+ T = erlang:convert_time_unit(Time, nano_seconds, FromTU),
+ TE = erlang:convert_time_unit(T, FromTU, ToTU),
+ TN = convert_time_unit(T, FromTU, ToTU),
+ case TE =:= TN of
+ false ->
+ ?t:fail({conversion_mismatch, FromTU, T, ToTU, TE, TN});
+ true ->
+ chk_ctu(Time, FromTU, ToTUs)
+ end.
+
%% The NIFs:
lib_version() -> undefined.
call_history() -> ?nif_stub.
@@ -1852,6 +1996,11 @@ make_map_remove_nif(_,_) -> ?nif_stub.
maps_from_list_nif(_) -> ?nif_stub.
sorted_list_from_maps_nif(_) -> ?nif_stub.
+%% Time
+monotonic_time(_) -> ?nif_stub.
+time_offset(_) -> ?nif_stub.
+convert_time_unit(_,_,_) -> ?nif_stub.
+
nif_stub_error(Line) ->
exit({nif_not_loaded,module,?MODULE,line,Line}).
diff --git a/erts/emulator/test/nif_SUITE_data/nif_SUITE.c b/erts/emulator/test/nif_SUITE_data/nif_SUITE.c
index 98e1efe18f..8ebce4fef4 100644
--- a/erts/emulator/test/nif_SUITE_data/nif_SUITE.c
+++ b/erts/emulator/test/nif_SUITE_data/nif_SUITE.c
@@ -34,6 +34,10 @@ static ERL_NIF_TERM atom_self;
static ERL_NIF_TERM atom_ok;
static ERL_NIF_TERM atom_join;
static ERL_NIF_TERM atom_binary_resource_type;
+static ERL_NIF_TERM atom_seconds;
+static ERL_NIF_TERM atom_milli_seconds;
+static ERL_NIF_TERM atom_micro_seconds;
+static ERL_NIF_TERM atom_nano_seconds;
typedef struct
@@ -138,6 +142,10 @@ static int load(ErlNifEnv* env, void** priv_data, ERL_NIF_TERM load_info)
atom_ok = enif_make_atom(env,"ok");
atom_join = enif_make_atom(env,"join");
atom_binary_resource_type = enif_make_atom(env,"binary_resource_type");
+ atom_seconds = enif_make_atom(env,"seconds");
+ atom_milli_seconds = enif_make_atom(env,"milli_seconds");
+ atom_micro_seconds = enif_make_atom(env,"micro_seconds");
+ atom_nano_seconds = enif_make_atom(env,"nano_seconds");
*priv_data = data;
return 0;
@@ -1885,6 +1893,87 @@ static ERL_NIF_TERM sorted_list_from_maps_nif(ErlNifEnv* env, int argc, const ER
return enif_make_tuple2(env, list_f, list_b);
}
+
+static ERL_NIF_TERM monotonic_time(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[])
+{
+ ErlNifTimeUnit time_unit;
+
+ if (argc != 1)
+ return atom_false;
+
+ if (enif_compare(argv[0], atom_seconds) == 0)
+ time_unit = ERL_NIF_SEC;
+ else if (enif_compare(argv[0], atom_milli_seconds) == 0)
+ time_unit = ERL_NIF_MSEC;
+ else if (enif_compare(argv[0], atom_micro_seconds) == 0)
+ time_unit = ERL_NIF_USEC;
+ else if (enif_compare(argv[0], atom_nano_seconds) == 0)
+ time_unit = ERL_NIF_NSEC;
+ else
+ time_unit = 4711; /* invalid time unit */
+
+ return enif_make_int64(env, enif_monotonic_time(time_unit));
+}
+
+static ERL_NIF_TERM time_offset(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[])
+{
+ ErlNifTimeUnit time_unit;
+
+ if (argc != 1)
+ return atom_false;
+
+ if (enif_compare(argv[0], atom_seconds) == 0)
+ time_unit = ERL_NIF_SEC;
+ else if (enif_compare(argv[0], atom_milli_seconds) == 0)
+ time_unit = ERL_NIF_MSEC;
+ else if (enif_compare(argv[0], atom_micro_seconds) == 0)
+ time_unit = ERL_NIF_USEC;
+ else if (enif_compare(argv[0], atom_nano_seconds) == 0)
+ time_unit = ERL_NIF_NSEC;
+ else
+ time_unit = 4711; /* invalid time unit */
+ return enif_make_int64(env, enif_time_offset(time_unit));
+}
+
+static ERL_NIF_TERM convert_time_unit(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[])
+{
+ ErlNifSInt64 i64;
+ ErlNifTime val;
+ ErlNifTimeUnit from, to;
+
+ if (argc != 3)
+ return atom_false;
+
+ if (!enif_get_int64(env, argv[0], &i64))
+ return enif_make_badarg(env);
+
+ val = (ErlNifTime) i64;
+
+ if (enif_compare(argv[1], atom_seconds) == 0)
+ from = ERL_NIF_SEC;
+ else if (enif_compare(argv[1], atom_milli_seconds) == 0)
+ from = ERL_NIF_MSEC;
+ else if (enif_compare(argv[1], atom_micro_seconds) == 0)
+ from = ERL_NIF_USEC;
+ else if (enif_compare(argv[1], atom_nano_seconds) == 0)
+ from = ERL_NIF_NSEC;
+ else
+ from = 4711; /* invalid time unit */
+
+ if (enif_compare(argv[2], atom_seconds) == 0)
+ to = ERL_NIF_SEC;
+ else if (enif_compare(argv[2], atom_milli_seconds) == 0)
+ to = ERL_NIF_MSEC;
+ else if (enif_compare(argv[2], atom_micro_seconds) == 0)
+ to = ERL_NIF_USEC;
+ else if (enif_compare(argv[2], atom_nano_seconds) == 0)
+ to = ERL_NIF_NSEC;
+ else
+ to = 4711; /* invalid time unit */
+
+ return enif_make_int64(env, enif_convert_time_unit(val, from, to));
+}
+
static ErlNifFunc nif_funcs[] =
{
{"lib_version", 0, lib_version},
@@ -1954,7 +2043,10 @@ static ErlNifFunc nif_funcs[] =
{"make_map_update_nif", 3, make_map_update_nif},
{"make_map_remove_nif", 2, make_map_remove_nif},
{"maps_from_list_nif", 1, maps_from_list_nif},
- {"sorted_list_from_maps_nif", 1, sorted_list_from_maps_nif}
+ {"sorted_list_from_maps_nif", 1, sorted_list_from_maps_nif},
+ {"monotonic_time", 1, monotonic_time},
+ {"time_offset", 1, time_offset},
+ {"convert_time_unit", 3, convert_time_unit}
};
ERL_NIF_INIT(nif_SUITE,nif_funcs,load,reload,upgrade,unload)
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-17 10:34:48 +0000