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#ifndef H_FINGERPRINT
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#define H_FINGERPRINT
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/** \ingroup rpmtrans
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* \file lib/fprint.h
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* Identify a file name path by a unique "finger print".
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*/
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#include <rpm/rpmtypes.h>
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/**
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*/
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typedef struct fprintCache_s * fingerPrintCache;
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/**
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* @todo Convert to pointer and make abstract.
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*/
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typedef struct fingerPrint_s fingerPrint;
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struct rpmffi_s {
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rpmte p;
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int fileno;
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};
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#ifdef __cplusplus
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extern "C" {
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#endif
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/**
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* Create finger print cache.
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* @param sizeHint number of elements expected
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* @param pool string pool (or NULL for private)
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* @return pointer to initialized fingerprint cache
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*/
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RPM_GNUC_INTERNAL
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fingerPrintCache fpCacheCreate(int sizeHint, rpmstrPool pool);
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/**
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* Destroy finger print cache.
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* @param cache pointer to fingerprint cache
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* @return NULL always
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*/
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RPM_GNUC_INTERNAL
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fingerPrintCache fpCacheFree(fingerPrintCache cache);
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RPM_GNUC_INTERNAL
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fingerPrint * fpCacheGetByFp(fingerPrintCache cache,
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struct fingerPrint_s * fp, int ix,
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struct rpmffi_s ** recs, int * numRecs);
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RPM_GNUC_INTERNAL
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void fpCachePopulate(fingerPrintCache cache, rpmts ts, int fileCount);
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/* compare an existing fingerprint with a looked-up fingerprint for db/bn */
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RPM_GNUC_INTERNAL
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int fpLookupEquals(fingerPrintCache cache, fingerPrint * fp,
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const char * dirName, const char * baseName);
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RPM_GNUC_INTERNAL
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const char *fpEntryDir(fingerPrintCache cache, fingerPrint *fp);
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RPM_GNUC_INTERNAL
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dev_t fpEntryDev(fingerPrintCache cache, fingerPrint *fp);
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/**
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* Return finger print of a file path.
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* @param cache pointer to fingerprint cache
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* @param dirName leading directory name of file path
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* @param baseName base name of file path
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* @retval fp pointer of fingerprint struct to fill out
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* @return 0 on success
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*/
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RPM_GNUC_INTERNAL
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int fpLookup(fingerPrintCache cache,
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const char * dirName, const char * baseName,
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fingerPrint **fp);
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/**
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* Compare two finger print entries.
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* This routine is exactly equivalent to the FP_EQUAL macro.
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* @param key1 finger print 1
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* @param key2 finger print 2
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* @return result of comparing key1 and key2
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*/
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RPM_GNUC_INTERNAL
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int fpEqual(const fingerPrint * key1, const fingerPrint * key2);
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/**
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* Return finger prints of an array of file paths.
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* @param cache pointer to fingerprint cache
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* @param pool pointer to file name pool
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* @param dirNames directory names
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* @param baseNames file base names
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* @param dirIndexes index into dirNames for each baseNames
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* @param fileCount number of file entries
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* @return pointer to array of finger prints
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*/
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RPM_GNUC_INTERNAL
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fingerPrint * fpLookupList(fingerPrintCache cache, rpmstrPool pool,
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rpmsid * dirNames, rpmsid * baseNames,
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const uint32_t * dirIndexes, int fileCount);
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#ifdef __cplusplus
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}
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#endif
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#endif
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