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// $Id: ssx_core.c,v 1.2 2014/02/03 01:30:44 daviddu Exp $
// $Source: /afs/awd/projects/eclipz/KnowledgeBase/.cvsroot/eclipz/chips/p8/working/procedures/ssx/ssx/ssx_core.c,v $
//-----------------------------------------------------------------------------
// *! (C) Copyright International Business Machines Corp. 2013
// *! All Rights Reserved -- Property of IBM
// *! *** IBM Confidential ***
//-----------------------------------------------------------------------------
/// \file ssx_core.c
/// \brief Core routines for the SSX kernel.
///
/// The entry points in this file are routines that are expected to be needed
/// at runtime by all SSX applications. This file also serves as a place for
/// kernel global variables to be realized.
#define __SSX_CORE_C__
#include "ssx.h"
#if !SSX_TIMER_SUPPORT
/// If there is no timer support, then any call of the timer interrupt handler
/// is considered a fatal error.
void
__ssx_timer_handler()
{
SSX_PANIC(SSX_NO_TIMER_SUPPORT);
}
#endif /* SSX_TIMER_SUPPORT */
/// Initialize an SsxDeque sentinel node
///
/// \param deque The sentinel node of the deque
///
/// SSX has no way of knowing whether the \a deque is currently in use, so
/// this API must only be called on unitialized or otherwise unused sentinel
/// nodes.
///
/// \retval 0 success
///
/// \retval -SSX_INVALID_DEQUE_SENTINEL The \a deque pointer was null
int
ssx_deque_sentinel_create(SsxDeque *deque)
{
if (SSX_ERROR_CHECK_API) {
SSX_ERROR_IF(deque == 0, SSX_INVALID_DEQUE_SENTINEL);
}
deque->next = deque->previous = deque;
return 0;
}
/// Initialize an SsxDeque element
///
/// \param element Typically the SsxDeque object of a queable structure
///
/// SSX has no way of knowing whether the \a element is currently in use, so
/// this API must only be called on unitialized or otherwise unused deque
/// elements.
///
/// \retval 0 success
///
/// \retval -SSX_INVALID_DEQUE_ELEMENT The \a element pointer was null
int
ssx_deque_element_create(SsxDeque *element)
{
if (SSX_ERROR_CHECK_API) {
SSX_ERROR_IF(element == 0, SSX_INVALID_DEQUE_ELEMENT);
}
element->next = 0;
return 0;
}
#undef __SSX_CORE_C__
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