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/*
* COPYRIGHT (c) 2012 Chris Johns <chrisj@rtems.org>
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rtems.com/license/LICENSE.
*/
/**
* @file
*
* @ingroup rtems_rtl
*
* @brief RTEMS Run-Time Linker Chain Iterator.
*/
#if !defined (_RTEMS_RTL_CHAIN_ITERATOR_H_)
#define _RTEMS_RTL_CHAIN_ITERATOR_H_
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
#include <rtems/chain.h>
/**
* Chain iterator handler.
*/
typedef bool (*rtems_chain_iterator) (rtems_chain_node* node, void* data);
/**
* Iterate a chain of nodes invoking the iterator handler. Supply a data
* pointer the iterator moves data between the invoker and the iterator.
*
* The iterator allows removal of the node from the chain.
*
* @param chain The chain of nodes to iterator over.
* @param iterator The iterator handler called once for each node.
* @param data Pointer to the data used by the iterator.
* @retval true The whole chain was iterated over.
* @retval false The iterator returned false.
*/
bool
rtems_rtl_chain_iterate (rtems_chain_control* chain,
rtems_chain_iterator iterator,
void* data);
/**
* Count the number of nodes on the chain.
*
* @param chain The chain to count the nodes of.
* @return int The number of nodes.
*/
int rtems_rtl_chain_count (rtems_chain_control* chain);
#ifdef __cplusplus
}
#endif /* __cplusplus */
#endif
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