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/*
 * XML Security Library (http://www.aleksey.com/xmlsec).
 *
 * List of pointers.
 *
 * This is free software; see Copyright file in the source
 * distribution for preciese wording.
 *
 * Copyright (C) 2002-2016 Aleksey Sanin <aleksey@aleksey.com>. All Rights Reserved.
 */
#ifndef __XMLSEC_LIST_H__
#define __XMLSEC_LIST_H__

#include <xmlsec/xmlsec.h>
#include <xmlsec/buffer.h>

#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */

typedef const struct _xmlSecPtrListKlass                        xmlSecPtrListKlass,
                                                                *xmlSecPtrListId;
typedef struct _xmlSecPtrList                                   xmlSecPtrList,
                                                                *xmlSecPtrListPtr;

/**
 * xmlSecPtrList:
 * @id:                         the list items description.
 * @data:                       the list data.
 * @use:                        the current list size.
 * @max:                        the max (allocated) list size.
 * @allocMode:                  the memory allocation mode.
 *
 * The pointers list.
 */
struct _xmlSecPtrList {
    xmlSecPtrListId             id;

    xmlSecPtr*                  data;
    xmlSecSize                  use;
    xmlSecSize                  max;
    xmlSecAllocMode             allocMode;
};

XMLSEC_EXPORT void              xmlSecPtrListSetDefaultAllocMode(xmlSecAllocMode defAllocMode,
                                                                 xmlSecSize defInitialSize);


XMLSEC_EXPORT int               xmlSecPtrListInitialize         (xmlSecPtrListPtr list,
                                                                 xmlSecPtrListId id);
XMLSEC_EXPORT void              xmlSecPtrListFinalize           (xmlSecPtrListPtr list);
XMLSEC_EXPORT xmlSecPtrListPtr  xmlSecPtrListCreate             (xmlSecPtrListId id);
XMLSEC_EXPORT void              xmlSecPtrListDestroy            (xmlSecPtrListPtr list);
XMLSEC_EXPORT void              xmlSecPtrListEmpty              (xmlSecPtrListPtr list);

XMLSEC_EXPORT int               xmlSecPtrListCopy               (xmlSecPtrListPtr dst,
                                                                 xmlSecPtrListPtr src);
XMLSEC_EXPORT xmlSecPtrListPtr  xmlSecPtrListDuplicate          (xmlSecPtrListPtr list);

XMLSEC_EXPORT xmlSecSize        xmlSecPtrListGetSize            (xmlSecPtrListPtr list);
XMLSEC_EXPORT xmlSecPtr         xmlSecPtrListGetItem            (xmlSecPtrListPtr list,
                                                                 xmlSecSize pos);
XMLSEC_EXPORT int               xmlSecPtrListAdd                (xmlSecPtrListPtr list,
                                                                 xmlSecPtr item);
XMLSEC_EXPORT int               xmlSecPtrListSet                (xmlSecPtrListPtr list,
                                                                 xmlSecPtr item,
                                                                 xmlSecSize pos);
XMLSEC_EXPORT int               xmlSecPtrListRemove             (xmlSecPtrListPtr list,
                                                                 xmlSecSize pos);
XMLSEC_EXPORT xmlSecPtr         xmlSecPtrListRemoveAndReturn    (xmlSecPtrListPtr list,
                                                                 xmlSecSize pos);
XMLSEC_EXPORT void              xmlSecPtrListDebugDump          (xmlSecPtrListPtr list,
                                                                 FILE* output);
XMLSEC_EXPORT void              xmlSecPtrListDebugXmlDump       (xmlSecPtrListPtr list,
                                                                 FILE* output);

/**
 * xmlSecPtrListGetName:
 * @list:               the ponter to list.
 *
 * Macro. Returns lists's name.
 */
#define xmlSecPtrListGetName(list) \
        (((list) != NULL) ? xmlSecPtrListKlassGetName((list)->id) : NULL)

/**
 * xmlSecPtrListIsValid:
 * @list:               the pointer to list.
 *
 * Macro. Returns 1 if @list is not NULL and @list->id is not NULL
 * or 0 otherwise.
 */
#define xmlSecPtrListIsValid(list) \
        ((( list ) != NULL) && ((( list )->id) != NULL))
/**
 * xmlSecPtrListCheckId:
 * @list:               the pointer to list.
 * @dataId:             the list Id.
 *
 * Macro. Returns 1 if @list is valid and @list's id is equal to @dataId.
 */
#define xmlSecPtrListCheckId(list, dataId) \
        (xmlSecPtrListIsValid(( list )) && \
        ((( list )->id) == ( dataId )))


/**************************************************************************
 *
 * List klass
 *
 *************************************************************************/
/**
 * xmlSecPtrListIdUnknown:
 *
 * The "unknown" id.
 */
#define xmlSecPtrListIdUnknown                  NULL

/**
 * xmlSecPtrDuplicateItemMethod:
 * @ptr:                the poinetr to list item.
 *
 * Duplicates item @ptr.
 *
 * Returns: pointer to new item copy or NULL if an error occurs.
 */
typedef xmlSecPtr               (*xmlSecPtrDuplicateItemMethod) (xmlSecPtr ptr);

/**
 * xmlSecPtrDestroyItemMethod:
 * @ptr:                the poinetr to list item.
 *
 * Destroys list item @ptr.
 */
typedef void                    (*xmlSecPtrDestroyItemMethod)   (xmlSecPtr ptr);

/**
 * xmlSecPtrDebugDumpItemMethod:
 * @ptr:                the poinetr to list item.
 * @output:             the output FILE.
 *
 * Prints debug information about @item to @output.
 */
typedef void                    (*xmlSecPtrDebugDumpItemMethod) (xmlSecPtr ptr,
                                                                 FILE* output);

/**
 * xmlSecPtrListKlass:
 * @name:               the list klass name.
 * @duplicateItem:      the duplicate item method.
 * @destroyItem:        the destroy item method.
 * @debugDumpItem:      the debug dump item method.
 * @debugXmlDumpItem:   the debug dump item in xml format method.
 *
 * List klass.
 */
struct _xmlSecPtrListKlass {
    const xmlChar*                      name;
    xmlSecPtrDuplicateItemMethod        duplicateItem;
    xmlSecPtrDestroyItemMethod          destroyItem;
    xmlSecPtrDebugDumpItemMethod        debugDumpItem;
    xmlSecPtrDebugDumpItemMethod        debugXmlDumpItem;
};

/**
 * xmlSecPtrListKlassGetName:
 * @klass:              the list klass.
 *2

 * Macro. Returns the list klass name.
 */
#define xmlSecPtrListKlassGetName(klass) \
        (((klass) != NULL) ? ((klass)->name) : NULL)

/**************************************************************************
 *
 * xmlSecStringListKlass
 *
 *************************************************************************/
/**
 * xmlSecStringListId:
 *
 * Strings list klass.
 */
#define xmlSecStringListId \
        xmlSecStringListGetKlass()
XMLSEC_EXPORT xmlSecPtrListId   xmlSecStringListGetKlass        (void);

#ifdef __cplusplus
}
#endif /* __cplusplus */

#endif /* __XMLSEC_LIST_H__ */