diff options
Diffstat (limited to 'byterun/sys.c')
| -rw-r--r-- | byterun/sys.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/byterun/sys.c b/byterun/sys.c index f82fce4b3f..6ac6cdbce7 100644 --- a/byterun/sys.c +++ b/byterun/sys.c @@ -302,13 +302,18 @@ CAMLprim value sys_time(value unit) CAMLprim value sys_random_seed (value unit) { + long seed; #ifdef HAS_GETTIMEOFDAY struct timeval tv; gettimeofday(&tv, NULL); - return Val_int(tv.tv_sec ^ tv.tv_usec); + seed = tv.tv_sec ^ tv.tv_usec; #else - return Val_int(time (NULL)); + seed = time (NULL); #endif +#ifdef HAS_UNISTD + seed ^= getppid() << 16 | getpid(); +#endif + return Val_long(seed); } CAMLprim value sys_get_config(value unit) |