1 files changed, 58 insertions, 0 deletions
diff --git a/winsup/cygwin/local_includes/cygwait.h b/winsup/cygwin/local_includes/cygwait.h
new file mode 100644
index 000000000..6212c334e
--- /dev/null
+++ b/winsup/cygwin/local_includes/cygwait.h
@@ -0,0 +1,58 @@
+/* cygwait.h
+
+   This file is part of Cygwin.
+
+   This software is a copyrighted work licensed under the terms of the
+   Cygwin license.  Please consult the file "CYGWIN_LICENSE" for
+   details.  */
+
+#pragma once
+
+#define WAIT_CANCELED   (WAIT_OBJECT_0 + 2)
+#define WAIT_SIGNALED  (WAIT_OBJECT_0 + 1)
+
+enum cw_wait_mask
+{
+  cw_cancel =		0x0001,	/* Cancellation point.  Return to caller. */
+  cw_cancel_self =	0x0002,	/* Cancellation point.  Cancel self. */
+  cw_sig =		0x0004,	/* Handle signals. */
+  cw_sig_eintr =	0x0008,	/* Caller handles signals. */
+  cw_sig_cont =		0x0010,	/* Caller handles SIGCONT. */
+  cw_sig_restart =	0x0020	/* Restart even if SA_RESTART isn't set. */
+};
+
+extern LARGE_INTEGER cw_nowait_storage;
+#define cw_nowait (&cw_nowait_storage)
+#define cw_infinite ((PLARGE_INTEGER) NULL)
+
+const unsigned cw_std_mask = cw_cancel | cw_cancel_self | cw_sig;
+
+DWORD cygwait (HANDLE, PLARGE_INTEGER timeout,
+		       unsigned = cw_std_mask);
+
+extern inline DWORD __attribute__ ((always_inline))
+cygwait (HANDLE h, DWORD howlong, unsigned mask)
+{
+  LARGE_INTEGER li_howlong;
+  PLARGE_INTEGER pli_howlong;
+  if (howlong == INFINITE)
+    pli_howlong = NULL;
+  else
+    {
+      li_howlong.QuadPart = -(10000ULL * howlong);
+      pli_howlong = &li_howlong;
+    }
+  return cygwait (h, pli_howlong, mask);
+}
+
+static inline DWORD __attribute__ ((always_inline))
+cygwait (HANDLE h, DWORD howlong = INFINITE)
+{
+  return cygwait (h, howlong, cw_cancel | cw_sig);
+}
+
+static inline DWORD __attribute__ ((always_inline))
+cygwait (DWORD howlong)
+{
+  return cygwait (NULL, howlong);
+}