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+// -*- C++ -*-
+
+//=============================================================================
+/**
+ * @file IPC_SAP.h
+ *
+ * $Id$
+ *
+ * @author Douglas C. Schmidt <schmidt@cs.wustl.edu>
+ */
+//=============================================================================
+
+#ifndef ACE_IPC_SAP_H
+#define ACE_IPC_SAP_H
+#include /**/ "ace/pre.h"
+
+#include "ace/Flag_Manip.h"
+#include "ace/os_include/sys/os_types.h"
+
+#if !defined (ACE_LACKS_PRAGMA_ONCE)
+# pragma once
+#endif /* ACE_LACKS_PRAGMA_ONCE */
+
+ACE_BEGIN_VERSIONED_NAMESPACE_DECL
+
+/**
+ * @class ACE_IPC_SAP
+ *
+ * @brief Defines the member functions for the base class of the
+ * ACE_IPC_SAP abstraction.
+ */
+class ACE_Export ACE_IPC_SAP
+{
+public:
+
+ /// Interface for <ioctl>.
+ int control (int cmd, void *) const;
+
+ // = Common I/O handle options related to sockets.
+
+ /**
+ * Enable asynchronous I/O (ACE_SIGIO), urgent data (ACE_SIGURG),
+ * non-blocking I/O (ACE_NONBLOCK), or close-on-exec (ACE_CLOEXEC),
+ * which is passed as the @a value.
+ */
+ int enable (int value) const;
+
+ /**
+ * Disable asynchronous I/O (ACE_SIGIO), urgent data (ACE_SIGURG),
+ * non-blocking I/O (ACE_NONBLOCK), or close-on-exec (ACE_CLOEXEC),
+ * which is passed as the @a value.
+ */
+ int disable (int value) const;
+
+ /// Get the underlying handle.
+ ACE_HANDLE get_handle (void) const;
+
+ /// Set the underlying handle.
+ void set_handle (ACE_HANDLE handle);
+
+ /// Dump the state of an object.
+ void dump (void) const;
+
+ /// Declare the dynamic allocation hooks.
+ ACE_ALLOC_HOOK_DECLARE;
+
+protected:
+
+ // = Ensure that ACE_IPC_SAP is an abstract base class.
+ /// Default constructor.
+ ACE_IPC_SAP (void);
+
+ /// Protected destructor.
+ /**
+ * Not a virtual destructor. Protected destructor to prevent
+ * operator delete() from being called through a base class
+ * ACE_IPC_SAP pointer/reference.
+ */
+ ~ACE_IPC_SAP (void);
+
+private:
+ /// Underlying I/O handle.
+ ACE_HANDLE handle_;
+
+ /// Cache the process ID.
+ static pid_t pid_;
+};
+
+ACE_END_VERSIONED_NAMESPACE_DECL
+
+#if defined (__ACE_INLINE__)
+#include "ace/IPC_SAP.inl"
+#endif /* __ACE_INLINE__ */
+
+#include /**/ "ace/post.h"
+#endif /* ACE_IPC_SAP_H */