Merge branch 'egil/file-info-opt-utc/OTP-7687'

* egil/file-info-opt-utc/OTP-7687: (39 commits)
  Remove time_t specific test in prim_file_SUITE
  Update prim_file.beam and prim_zip.beam
  Add types for posixtime_to_universaltime and the reverse
  Set BASEYEAR to 1902
  Set lower limit of years handled to 1601
  Emulate localtime, gmtime and mktime to enable negative time_t
  Document file:*_file_info/2
  Fix compiler warning in unix_efile.c
  Change name of bif universaltime_to_seconds/1
  Change options to prim_file:*_file_info/*
  Remove dead code
  Catch errors from prim_file:*_file_info
  Testcase for utc <-> seconds conversion
  Fix negative time in seconds_to_universaltime/1
  Remove OS taint from datetime conversion
  Add utc <-> seconds conversions bifs
  Let prim_file validate ctime in file_info
  Teach #file_info spec unix epochs for file times
  Add file_info_opt tests in prim_file_SUITE
  unix_efile: Zero is a valid number in utime
  ...

Conflicts:
	erts/emulator/beam/erl_time_sup.c
	erts/emulator/sys/win32/erl_win_sys.h
	erts/emulator/sys/win32/sys_time.c

1 files changed, 55 insertions, 0 deletions

diff --git a/erts/emulator/beam/bif.c b/erts/emulator/beam/bif.c
index 26f1b4facb..55f4798892 100644
--- a/erts/emulator/beam/bif.c
+++ b/erts/emulator/beam/bif.c
@@ -3385,6 +3385,61 @@ BIF_RETTYPE universaltime_to_localtime_1(BIF_ALIST_1)
     BIF_RET(TUPLE2(hp, res1, res2));
 }
 
+/* convert calendar:universaltime_to_seconds/1 */
+
+BIF_RETTYPE universaltime_to_posixtime_1(BIF_ALIST_1)
+{
+    Sint year, month, day;
+    Sint hour, minute, second;
+
+    Sint64 seconds = 0;
+    Eterm *hp;
+    Uint hsz = 0;
+
+    if (!time_to_parts(BIF_ARG_1, &year, &month, &day, 
+		       &hour, &minute, &second))
+	BIF_ERROR(BIF_P, BADARG);
+
+    if (!univ_to_seconds(year, month, day, hour, minute, second, &seconds)) {
+	BIF_ERROR(BIF_P, BADARG);
+    }
+
+    erts_bld_sint64(NULL, &hsz, seconds);
+    hp = HAlloc(BIF_P, hsz);
+    BIF_RET(erts_bld_sint64(&hp, NULL, seconds));
+}
+
+/* convert calendar:seconds_to_universaltime/1 */
+
+BIF_RETTYPE posixtime_to_universaltime_1(BIF_ALIST_1)
+{
+    Sint year, month, day;
+    Sint hour, minute, second;
+    Eterm res1, res2;
+    Eterm* hp;
+
+    Sint64 time = 0;
+
+    if (!term_to_Sint64(BIF_ARG_1, &time)) {
+	BIF_ERROR(BIF_P, BADARG);
+    }
+
+    if (!seconds_to_univ(time, &year, &month, &day,
+		&hour, &minute, &second)) {
+	BIF_ERROR(BIF_P, BADARG);
+    }
+
+    hp = HAlloc(BIF_P, 4+4+3);
+    res1 = TUPLE3(hp,make_small(year),make_small(month),
+		  make_small(day));
+    hp += 4;
+    res2 = TUPLE3(hp,make_small(hour),make_small(minute),
+		  make_small(second));
+    hp += 4;
+    BIF_RET(TUPLE2(hp, res1, res2));
+}
+
+
 /**********************************************************************/