1 files changed, 49 insertions, 0 deletions
diff --git a/winsup/testsuite/winsup.api/pthread/threadidafterfork.c b/winsup/testsuite/winsup.api/pthread/threadidafterfork.c
new file mode 100644
index 000000000..da93a4d3f
--- /dev/null
+++ b/winsup/testsuite/winsup.api/pthread/threadidafterfork.c
@@ -0,0 +1,49 @@
+#include <stdio.h>
+#include <unistd.h>
+#include <sys/wait.h>
+#include <pthread.h>
+
+static void * TestThread ( void * );
+
+int main (void)
+{
+  pthread_t t;
+
+  pthread_create (&t, NULL, TestThread, NULL);
+  pthread_join (t, NULL);
+
+  return 0;
+}
+
+static void * TestThread ( void *not_used )
+{
+  pthread_t iAm = pthread_self();
+  int status;
+  switch (fork ())
+    {
+    case -1:
+      exit(1);
+    case 0:
+      if (iAm != pthread_self())
+	  exit (1);
+      else
+	  exit (0);
+      break;
+    default:
+      wait (&status);
+      if (status != 0)
+	  exit (1);
+    }
+  exit(0);
+}
+
+/*
+The forked child will not get the same thread handle as its parent, it
+will get the thread handle from the main thread instead. The child will
+not terminate because the threadcount is still 2 after the fork (it is
+set to 1 in MTinterface::Init and then set back to 2 after the childs
+memory gets overwritten by the parent).
+
+concept test by Thomas Pfaff <tpfaff@gmx.net>
+scritable test by Robert Collins <rbtcollins@hotmail.com>
+*/