1 files changed, 14 insertions, 0 deletions
diff --git a/winsup/cygwin/ntdll.h b/winsup/cygwin/ntdll.h
index 2582bf25f..c67a775ec 100644
--- a/winsup/cygwin/ntdll.h
+++ b/winsup/cygwin/ntdll.h
@@ -1102,6 +1102,18 @@ typedef enum _EVENT_INFORMATION_CLASS
   EventBasicInformation = 0
 } EVENT_INFORMATION_CLASS, *PEVENT_INFORMATION_CLASS;
 
+/* Checked on 64 bit. */
+typedef struct _SEMAPHORE_BASIC_INFORMATION
+{
+  LONG CurrentCount;
+  LONG MaximumCount;
+} SEMAPHORE_BASIC_INFORMATION, *PSEMAPHORE_BASIC_INFORMATION;
+
+typedef enum _SEMAPHORE_INFORMATION_CLASS
+{
+  SemaphoreBasicInformation = 0
+} SEMAPHORE_INFORMATION_CLASS, *PSEMAPHORE_INFORMATION_CLASS;
+
 typedef enum _THREAD_INFORMATION_CLASS
 {
   ThreadBasicInformation = 0,
@@ -1275,6 +1287,8 @@ extern "C"
 					  PVOID, ULONG, PULONG);
   NTSTATUS NTAPI NtQueryObject (HANDLE, OBJECT_INFORMATION_CLASS, VOID *,
 				ULONG, ULONG *);
+  NTSTATUS NTAPI NtQuerySemaphore (HANDLE, SEMAPHORE_INFORMATION_CLASS,
+				   PVOID, ULONG, PULONG);
   NTSTATUS NTAPI NtQuerySystemInformation (SYSTEM_INFORMATION_CLASS,
 					   PVOID, ULONG, PULONG);
   NTSTATUS WINAPI NtQuerySystemTime (PLARGE_INTEGER);