[newlib-cygwin] Cygwin: testsuite: Add a simple timeout mechanism

[Jon Turney <jturney@sourceware.org>]

https://sourceware.org/git/gitweb.cgi?p=newlib-cygwin.git;h=328258eba44993f05e6238c4c9b2124e2496fb4d

commit 328258eba44993f05e6238c4c9b2124e2496fb4d
Author: Jon Turney <jon.turney@dronecode.org.uk>
Date:   Tue Jul 11 11:17:56 2023 +0100

    Cygwin: testsuite: Add a simple timeout mechanism
    
    Astonishingly, we don't have this already, so tests which hang just stop
    the testsuite dead in it's tracks...
    
    Signed-off-by: Jon Turney <jon.turney@dronecode.org.uk>

Diff:
---
 winsup/testsuite/cygrun.c | 17 +++++++++++++++--
 1 file changed, 15 insertions(+), 2 deletions(-)

diff --git a/winsup/testsuite/cygrun.c b/winsup/testsuite/cygrun.c
index e6c4aa705..925b5513f 100644
--- a/winsup/testsuite/cygrun.c
+++ b/winsup/testsuite/cygrun.c
@@ -20,6 +20,7 @@ main (int argc, char **argv)
 {
   STARTUPINFO sa;
   PROCESS_INFORMATION pi;
+  DWORD res;
   DWORD ec = 1;
   char *p;
 
@@ -42,9 +43,21 @@ main (int argc, char **argv)
       exit (1);
     }
 
-  WaitForSingleObject (pi.hProcess, INFINITE);
+  res = WaitForSingleObject (pi.hProcess, 60 * 1000);
 
-  GetExitCodeProcess (pi.hProcess, &ec);
+  if (res == WAIT_TIMEOUT)
+    {
+      char cmd[1024];
+      // there is no simple API to kill a Windows process tree
+      sprintf(cmd, "taskkill /f /t /pid %lu", GetProcessId(pi.hProcess));
+      system(cmd);
+      fprintf (stderr, "Timeout\n");
+      ec = 124;
+    }
+  else
+    {
+      GetExitCodeProcess (pi.hProcess, &ec);
+    }
 
   CloseHandle (pi.hProcess);
   CloseHandle (pi.hThread);