Upgrade to Win32-0.38

(including changes to GetCurrentThreadId.t which should have gone into
the 0.37 upgrade, but which I missed then)

p4raw-id: //depot/perl@34094

1 files changed, 24 insertions, 6 deletions

diff --git a/ext/Win32/t/GetCurrentThreadId.t b/ext/Win32/t/GetCurrentThreadId.t
index 4db2c1417a..ce98f3e562 100644
--- a/ext/Win32/t/GetCurrentThreadId.t
+++ b/ext/Win32/t/GetCurrentThreadId.t
@@ -3,16 +3,34 @@ use Config qw(%Config);
 use Test;
 use Win32;
 
-plan tests => 1;
+my $fork_emulation = $Config{ccflags} =~ /PERL_IMPLICIT_SYS/;
 
-# This test relies on the implementation detail that the fork() emulation
-# uses the negative value of the thread id as a pseudo process id.
-if ($Config{ccflags} =~ /PERL_IMPLICIT_SYS/) {
-    if (my $pid = fork) {
-	waitpid($pid, 0);
+my $tests = $fork_emulation ? 4 : 2;
+plan tests => $tests;
+
+my $pid = $$+0; # make sure we don't copy any magic to $pid
+
+if ($^O eq "cygwin") {
+    skip(!defined &Cygwin::pid_to_winpid,
+	 Cygwin::pid_to_winpid($pid),
+	 Win32::GetCurrentProcessId());
+}
+else {
+    ok($pid, Win32::GetCurrentProcessId());
+}
+
+if ($fork_emulation) {
+    # This test relies on the implementation detail that the fork() emulation
+    # uses the negative value of the thread id as a pseudo process id.
+    if (my $child = fork) {
+	waitpid($child, 0);
 	exit 0;
     }
     ok(-$$, Win32::GetCurrentThreadId());
+
+    # GetCurrentProcessId() should still return the real PID
+    ok($pid, Win32::GetCurrentProcessId());
+    ok($$ != Win32::GetCurrentProcessId());
 }
 else {
     # here we just want to see something.