diff options
| -rw-r--r-- | erts/configure.in | 3 | ||||
| -rw-r--r-- | erts/emulator/beam/erl_time_sup.c | 20 | ||||
| -rw-r--r-- | erts/emulator/test/time_SUITE.erl | 37 |
3 files changed, 59 insertions, 1 deletions
diff --git a/erts/configure.in b/erts/configure.in index d5dccdbb83..6b494ef127 100644 --- a/erts/configure.in +++ b/erts/configure.in @@ -1719,6 +1719,9 @@ AC_CHECK_FUNCS([ieee_handler fpsetmask finite isnan isinf res_gethostbyname dlop gethrtime localtime_r gmtime_r mmap mremap memcpy mallopt \ sbrk _sbrk __sbrk brk _brk __brk \ flockfile fstat strlcpy strlcat setsid posix2time setlocale nl_langinfo poll]) + +AC_CHECK_DECLS([posix2time],,,[#include <time.h>]) + if test "X$host" = "Xwin32"; then ac_cv_func_setvbuf_reversed=yes fi diff --git a/erts/emulator/beam/erl_time_sup.c b/erts/emulator/beam/erl_time_sup.c index c15f85f8f1..7b8706ea13 100644 --- a/erts/emulator/beam/erl_time_sup.c +++ b/erts/emulator/beam/erl_time_sup.c @@ -650,6 +650,22 @@ local_to_univ(Sint *year, Sint *month, Sint *day, t.tm_sec = *second; t.tm_isdst = isdst; the_clock = mktime(&t); + if (the_clock == -1) { + if (isdst) { + /* If this is a timezone without DST and the OS (correctly) + refuses to give us a DST time, we simulate the Linux/Solaris + behaviour of giving the same data as if is_dst was not set. */ + t.tm_isdst = 0; + the_clock = mktime(&t); + if (the_clock == -1) { + /* Failed anyway, something else is bad - will be a badarg */ + return 0; + } + } else { + /* Something else is the matter, badarg. */ + return 0; + } + } #ifdef HAVE_GMTIME_R gmtime_r(&the_clock, (tm = &tmbuf)); #else @@ -663,6 +679,10 @@ local_to_univ(Sint *year, Sint *month, Sint *day, *second = tm->tm_sec; return 1; } +#if defined(HAVE_POSIX2TIME) && defined(HAVE_DECL_POSIX2TIME) && \ + !HAVE_DECL_POSIX2TIME +extern time_t posix2time(time_t); +#endif int univ_to_local(Sint *year, Sint *month, Sint *day, diff --git a/erts/emulator/test/time_SUITE.erl b/erts/emulator/test/time_SUITE.erl index 2ad1f0d201..095e9dd1af 100644 --- a/erts/emulator/test/time_SUITE.erl +++ b/erts/emulator/test/time_SUITE.erl @@ -34,6 +34,8 @@ consistency/1, now/1, now_unique/1, now_update/1, timestamp/1]). +-export([local_to_univ_utc/1]). + -include("test_server.hrl"). -export([linear_time/1]). @@ -53,7 +55,40 @@ -define(dst_timezone, 2). all(suite) -> [univ_to_local, local_to_univ, - bad_univ_to_local, bad_local_to_univ, consistency, now, timestamp]. + local_to_univ_utc, + bad_univ_to_local, bad_local_to_univ, + consistency, now, timestamp]. + +local_to_univ_utc(suite) -> + []; +local_to_univ_utc(doc) -> + ["Test that DST = true on timezones without DST is ignored"]; +local_to_univ_utc(Config) when is_list(Config) -> + case os:type() of + {unix,_} -> + %% TZ variable has a meaning + ?line {ok, Node} = + test_server:start_node(local_univ_utc,peer, + [{args, "-env TZ UTC"}]), + ?line {{2008,8,1},{0,0,0}} = + rpc:call(Node, + erlang,localtime_to_universaltime, + [{{2008, 8, 1}, {0, 0, 0}}, + false]), + ?line {{2008,8,1},{0,0,0}} = + rpc:call(Node, + erlang,localtime_to_universaltime, + [{{2008, 8, 1}, {0, 0, 0}}, + true]), + ?line [{{2008,8,1},{0,0,0}}] = + rpc:call(Node, + calendar,local_time_to_universal_time_dst, + [{{2008, 8, 1}, {0, 0, 0}}]), + ?line test_server:stop_node(Node), + ok; + _ -> + {skip,"Only valid on Unix"} + end. %% Tests conversion from univeral to local time. |