Change type of Timeval.tv_sec to posix.Time (#7646)

lib/pure/nativesockets.nim

@@ -616,8 +616,12 @@ proc setBlocking*(s: SocketHandle, blocking: bool) =
 proc timeValFromMilliseconds(timeout = 500): Timeval =
   if timeout != -1:
     var seconds = timeout div 1000
-    result.tv_sec = seconds.int32
-    result.tv_usec = ((timeout - seconds * 1000) * 1000).int32
+    when useWinVersion:
+      result.tv_sec = seconds.int32
+      result.tv_usec = ((timeout - seconds * 1000) * 1000).int32
+    else:
+      result.tv_sec = seconds.Time
+      result.tv_usec = ((timeout - seconds * 1000) * 1000).Suseconds
 
 proc createFdSet(fd: var TFdSet, s: seq[SocketHandle], m: var int) =
   FD_ZERO(fd)

lib/pure/os.nim

@@ -1660,7 +1660,7 @@ proc setLastModificationTime*(file: string, t: times.Time) =
   ## Sets the `file`'s last modification time. `OSError` is raised in case of
   ## an error.
   when defined(posix):
-    let unixt = t.toUnix.int
+    let unixt = posix.Time(t.toUnix)
     var timevals = [Timeval(tv_sec: unixt), Timeval(tv_sec: unixt)] # [last access, last modification]
     if utimes(file, timevals.addr) != 0: raiseOSError(osLastError())
   else:

lib/pure/osproc.nim

@@ -1289,7 +1289,7 @@ elif not defined(useNimRtl):
 
   proc select(readfds: var seq[Process], timeout = 500): int =
     var tv: Timeval
-    tv.tv_sec = 0
+    tv.tv_sec = posix.Time(0)
     tv.tv_usec = timeout * 1000
 
     var rd: TFdSet

lib/pure/times.nim

@@ -1752,7 +1752,7 @@ when not defined(JS):
       when defined(posix):
         var a: Timeval
         gettimeofday(a)
-        result = toFloat(a.tv_sec) + toFloat(a.tv_usec)*0.00_0001
+        result = toBiggestFloat(a.tv_sec.int64) + toFloat(a.tv_usec)*0.00_0001
       elif defined(windows):
         var f: winlean.FILETIME
         getSystemTimeAsFileTime(f)