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#ifndef REPREPRO_REFERENCE_H
#define REPREPRO_REFERENCE_H
#ifndef REPREPRO_ERROR_H
#include "error.h"
#warning "What's happening?"
#endif
#ifndef REPREPRO_STRLIST_H
#include "strlist.h"
#warning "What's happening?"
#endif
typedef struct references *references;
retvalue references_initialize(/*@out@*/references *ref, const char *path);
retvalue references_done(/*@only@*/references ref);
/* remove all references from a given identifier */
retvalue references_remove(references ref,const char *neededby,/*@null@*/struct strlist *);
/* Add an reference by <identifer> for the given <files>,
* excluding <exclude>, if it is nonNULL. */
retvalue references_insert(references ref,const char *identifer,
const struct strlist *files,const struct strlist *exclude);
/* Remove reference by <identifer> for the given <oldfiles>,
* excluding <exclude>, if it is nonNULL.
* if dereferencedfilekeys is != NULL, add those losing one reference,
* files will be freed (or moved to dereferencedfilekeys) */
retvalue references_delete(references ref,const char *identifer,
struct strlist *files,/*@null@*/const struct strlist *exclude,
/*@null@*/struct strlist *dereferencedfilekeys);
/* add an reference to a file for an identifier. */
retvalue references_increment(references ref,const char *needed,const char *needey);
/* delete reference to a file for an identifier */
retvalue references_decrement(references ref,const char *needed,const char *needey);
/* check if an item is needed, returns RET_NOTHING if not */
retvalue references_isused(references ref,const char *what);
/* check if a reference is found as expected */
retvalue references_check(references ref,const char *referee,const struct strlist *what);
/* print out all referee-referenced-pairs. */
retvalue references_dump(references ref);
#endif
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