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diff --git a/cpukit/include/rtems/posix/psignalimpl.h b/cpukit/include/rtems/posix/psignalimpl.h
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+++ b/cpukit/include/rtems/posix/psignalimpl.h
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+/**
+ * @file
+ * 
+ * @brief POSIX Signals Support
+ *
+ * This include file defines internal information about POSIX signals.
+ */
+
+/*
+ *  COPYRIGHT (c) 1989-2013.
+ *  On-Line Applications Research Corporation (OAR).
+ *
+ *  The license and distribution terms for this file may be
+ *  found in the file LICENSE in this distribution or at
+ *  http://www.rtems.org/license/LICENSE.
+ */
+
+#ifndef _RTEMS_POSIX_PSIGNALIMPL_H
+#define _RTEMS_POSIX_PSIGNALIMPL_H
+
+/**
+ * @defgroup POSIX_SIGNALS POSIX Signals Support
+ *
+ * @ingroup POSIXAPI
+ *
+ * @brief Internal Information about POSIX Signals
+ * 
+ */
+/**@{**/
+
+#include <rtems/posix/psignal.h>
+#include <rtems/posix/pthread.h>
+#include <rtems/posix/sigset.h>
+#include <rtems/score/isrlock.h>
+#include <rtems/score/percpu.h>
+#include <rtems/score/threadqimpl.h>
+
+#define POSIX_SIGNALS_TQ_OPERATIONS &_Thread_queue_Operations_FIFO
+
+#define _States_Is_interruptible_signal( _states ) \
+  ( ((_states) & \
+    (STATES_WAITING_FOR_SIGNAL|STATES_INTERRUPTIBLE_BY_SIGNAL)) == \
+      (STATES_WAITING_FOR_SIGNAL|STATES_INTERRUPTIBLE_BY_SIGNAL))
+
+#define SIGACTION_TERMINATE \
+  { 0, SIGNAL_ALL_MASK, {_POSIX_signals_Abnormal_termination_handler} }
+#define SIGACTION_IGNORE \
+  { 0, SIGNAL_ALL_MASK, {SIG_IGN} }
+#define SIGACTION_STOP \
+  { 0, SIGNAL_ALL_MASK, {_POSIX_signals_Stop_handler} }
+#define SIGACTION_CONTINUE \
+  { 0, SIGNAL_ALL_MASK, {_POSIX_signals_Continue_handler} }
+
+#define SIG_ARRAY_MAX  (SIGRTMAX + 1)
+
+/*
+ *  Variables
+ */
+
+extern sigset_t  _POSIX_signals_Pending;
+
+extern const struct sigaction _POSIX_signals_Default_vectors[ SIG_ARRAY_MAX ];
+
+extern struct sigaction _POSIX_signals_Vectors[ SIG_ARRAY_MAX ];
+
+extern Thread_queue_Control _POSIX_signals_Wait_queue;
+
+extern Chain_Control _POSIX_signals_Inactive_siginfo;
+
+extern Chain_Control _POSIX_signals_Siginfo[ SIG_ARRAY_MAX ];
+
+/*
+ *  Internal routines
+ */
+
+RTEMS_INLINE_ROUTINE void _POSIX_signals_Acquire(
+  Thread_queue_Context *queue_context
+)
+{
+  _Thread_queue_Acquire( &_POSIX_signals_Wait_queue, queue_context );
+}
+
+RTEMS_INLINE_ROUTINE void _POSIX_signals_Release(
+  Thread_queue_Context *queue_context
+)
+{
+  _Thread_queue_Release( &_POSIX_signals_Wait_queue, queue_context );
+}
+
+/**
+ * @brief Unlock POSIX signals thread.
+ */
+bool _POSIX_signals_Unblock_thread(
+  Thread_Control  *the_thread,
+  int              signo,
+  siginfo_t       *info
+);
+
+/**
+ * @brief Clear POSIX signals.
+ */
+bool _POSIX_signals_Clear_signals(
+  POSIX_API_Control  *api,
+  int                 signo,
+  siginfo_t          *info,
+  bool                is_global,
+  bool                check_blocked,
+  bool                do_signals_acquire_release
+);
+
+int _POSIX_signals_Send(
+  pid_t               pid,
+  int                 sig,
+  const union sigval *value
+);
+
+/**
+ *  @brief Set POSIX process signals.
+ */
+void _POSIX_signals_Set_process_signals(
+  sigset_t   mask
+);
+
+void _POSIX_signals_Clear_process_signals(
+  int        signo
+);
+
+/*
+ *  Default signal handlers
+ */
+
+#define _POSIX_signals_Stop_handler NULL
+#define _POSIX_signals_Continue_handler NULL
+
+void _POSIX_signals_Abnormal_termination_handler( int signo );
+
+/** @} */
+
+#endif
+/* end of file */