rpmdb/fprint.h

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#ifndef H_FINGERPRINT
#define H_FINGERPRINT

#include "rpmhash.h"
#include "header.h"

typedef /*@abstract@*/ struct fprintCache_s * fingerPrintCache;

typedef struct fingerPrint_s fingerPrint;

struct fprintCacheEntry_s {
    const char * dirName;               
    dev_t dev;                          
    ino_t ino;                          
};

struct fprintCache_s {
    hashTable ht;                       
};

struct fingerPrint_s {
    const struct fprintCacheEntry_s * entry;
/*@owned@*/ /*@null@*/ const char * subDir;
/*@dependent@*/ const char * baseName;  
};

#define FP_ENTRY_EQUAL(a, b) (((a)->dev == (b)->dev) && ((a)->ino == (b)->ino))

#define FP_EQUAL(a, b) ( \
        FP_ENTRY_EQUAL((a).entry, (b).entry) && \
        !strcmp((a).baseName, (b).baseName) && ( \
            ((a).subDir == (b).subDir) || \
            ((a).subDir && (b).subDir && !strcmp((a).subDir, (b).subDir)) \
        ) \
    )

#ifdef __cplusplus
extern "C" {
#endif

int rpmdbFindFpList(/*@null@*/ rpmdb db, fingerPrint  * fpList,
                /*@out@*/ dbiIndexSet * matchList, int numItems)
        /*@globals rpmGlobalMacroContext, h_errno, fileSystem, internalState @*/
        /*@modifies db, *matchList, rpmGlobalMacroContext,
                fileSystem, internalState @*/;

/* Be carefull with the memory... assert(*fullName == '/' || !scareMemory) */

/*@only@*/ fingerPrintCache fpCacheCreate(int sizeHint)
        /*@*/;

/*@null@*/
fingerPrintCache fpCacheFree(/*@only@*/ fingerPrintCache cache)
        /*@modifies cache @*/;

fingerPrint fpLookup(fingerPrintCache cache, const char * dirName, 
                        const char * baseName, int scareMemory)
        /*@modifies cache @*/;

unsigned int fpHashFunction(const void * key)
        /*@*/;

int fpEqual(const void * key1, const void * key2)
        /*@*/;

void fpLookupList(fingerPrintCache cache, const char ** dirNames, 
                  const char ** baseNames, const int * dirIndexes, 
                  int fileCount, fingerPrint * fpList)
        /*@modifies cache, *fpList @*/;

#ifdef __cplusplus
}
#endif

#endif

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