1 files changed, 87 insertions, 0 deletions
diff --git a/winsup/cygwin/cygserver_sem.h b/winsup/cygwin/cygserver_sem.h
new file mode 100644
index 000000000..288a05438
--- /dev/null
+++ b/winsup/cygwin/cygserver_sem.h
@@ -0,0 +1,87 @@
+/* cygserver_sem.h: Single unix specification IPC interface for Cygwin.
+
+   Copyright 2003 Red Hat, Inc.
+
+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. */
+
+#ifndef __CYGSERVER_SEM_H__
+#define __CYGSERVER_SEM_H__
+
+#include <sys/types.h>
+#include <sys/sysproto.h>
+#ifndef _KERNEL
+#define _KERNEL 1
+#endif
+#include <cygwin/sem.h>
+
+#include "cygserver.h"
+#include "cygserver_ipc.h"
+
+#ifndef __INSIDE_CYGWIN__
+class transport_layer_base;
+class process_cache;
+#endif
+
+class client_request_sem : public client_request
+{
+  friend class client_request;
+
+public:
+  enum semop_t
+    {
+      SEMOP_semctl,
+      SEMOP_semget,
+      SEMOP_semop
+    };
+
+private:
+  union
+  {
+    struct
+    {
+      semop_t semop;
+      proc ipcblk;
+      union
+      {
+        struct semctl_args ctlargs;
+	struct semget_args getargs;
+	struct semop_args  opargs;
+      };
+    } in;
+
+    union {
+      int ret;
+    } out;
+  } _parameters;
+
+#ifndef __INSIDE_CYGWIN__
+  client_request_sem ();
+  virtual void serve (transport_layer_base *, process_cache *);
+#endif
+
+public:
+
+#ifdef __INSIDE_CYGWIN__
+  client_request_sem (int, int, int, union semun *);	// semctl
+  client_request_sem (key_t, int, int);			// semget
+  client_request_sem (int, struct sembuf *, size_t);	// semop
+#endif
+
+  int retval (void) const { return _parameters.out.ret; }
+};
+
+#ifndef __INSIDE_CYGWIN__
+int seminit (void);
+int semunload (void);
+void semexit_myhook(void *arg, struct proc *p);
+
+int semctl (struct thread *, struct semctl_args *);
+int semget (struct thread *, struct semget_args *);
+int semop (struct thread *, struct semop_args *);
+#endif
+
+#endif /* __CYGSERVER_SEM_H__ */