fprint.c File Reference
`#include "system.h"`
`#include <rpmiotypes.h>`
`#include <rpmio.h>`
`#include <rpmmacro.h>`
`#include <rpmtag.h>`
`#include <rpmdb.h>`
`#include "fprint.h"`
`#include "debug.h"`
Include dependency graph for fprint.c:

Go to the source code of this file.

## Functions

fingerPrintCache | fpCacheCreate (int sizeHint)
| Create finger print cache. More...
fingerPrintCache | fpCacheFree (fingerPrintCache cache)
| Destroy finger print cache. More...
static struct fprintCacheEntry_s * | cacheContainsDirectory (fingerPrintCache cache, const char *dirName)
| Find directory name entry in cache. More...
static fingerPrint | doLookup (fingerPrintCache cache, const char *dirName, const char *baseName, int scareMem)
| Return finger print of a file path. More...
fingerPrint | fpLookup (fingerPrintCache cache, const char *dirName, const char *baseName, int scareMem)
| Return finger print of a file path. More...
rpmuint32_t | fpHashFunction (rpmuint32_t h, const void *data, size_t size)
| Return hash value for a finger print. More...
int | fpEqual (const void *key1, const void *key2)
| Compare two finger print entries. More...
void | fpLookupList (fingerPrintCache cache, const char **dirNames, const char **baseNames, const rpmuint32_t *dirIndexes, rpmuint32_t fileCount, fingerPrint *fpList)
| Return finger prints of an array of file paths. More...

## Function Documentation

static struct fprintCacheEntry_s* cacheContainsDirectory | ( | fingerPrintCache | cache,
|  | const char * | dirName
| ) |  |

staticread

Find directory name entry in cache.

Parameters

  cache | pointer to fingerprint cache
  dirName | string to locate in cache

Returns
  pointer to directory name entry (or NULL if not found).

Definition at line 42 of file fprint.c.

References fprintCache_s::ht, and htGetEntry().

Referenced by doLookup().

static fingerPrint doLookup | ( | fingerPrintCache | cache,
|  | const char * | dirName,
|  | const char * | baseName,
|  | int | scareMem
| ) |  |

static

Return finger print of a file path.

Parameters

  cache | pointer to fingerprint cache
  dirName | leading directory name of path
  baseName | file name of path
  scareMem |

Returns
  pointer to the finger print associated with a file path.

Definition at line 62 of file fprint.c.

References alloca(), fingerPrint_s::baseName, cacheContainsDirectory(), fprintCacheEntry_s::dev, fprintCacheEntry_s::dirName, dirName, fingerPrint_s::entry, fprintCache_s::ht, htAddEntry(), fprintCacheEntry_s::ino, PATH_MAX, Realpath(), rpmCleanPath(), stpncpy(), fingerPrint_s::subDir, xmalloc(), and xstrdup().

Referenced by fpLookup(), and fpLookupList().

fingerPrintCache fpCacheCreate | ( | int | sizeHint | ) |

Create finger print cache.

Parameters

  sizeHint | number of elements expected

Returns
  pointer to initialized fingerprint cache

Definition at line 19 of file fprint.c.

References fprintCache_s::ht, htCreate(), and xmalloc().

Referenced by rpmdbFindByFile(), rpmdbFindFpList(), and rpmtsRun().

fingerPrintCache fpCacheFree | ( | fingerPrintCache | cache | ) |

Destroy finger print cache.

Parameters

  cache | pointer to fingerprint cache

Returns
  NULL always

Definition at line 29 of file fprint.c.

References fprintCache_s::ht, and htFree().

Referenced by rpmdbFindByFile(), rpmdbFindFpList(), and rpmtsRun().

int fpEqual | ( | const void * | key1,
|  | const void * | key2
| ) |  |

Compare two finger print entries.

This routine is exactly equivalent to the FP_EQUAL macro.

Parameters

  key1 | finger print 1
  key2 | finger print 2

Returns
  result of comparing key1 and key2

Definition at line 210 of file fprint.c.

References FP_EQUAL.

Referenced by rpmtsRun().

rpmuint32_t fpHashFunction | ( | rpmuint32_t | h,
|  | const void * | data,
|  | size_t | size
| ) |  |

Return hash value for a finger print.

Hash based on dev and inode only!

Parameters

  h | hash initial value
  *data | finger print entry
  size | size of fingerprint entry

Returns
  hash value

Definition at line 194 of file fprint.c.

References fingerPrint_s::baseName, fprintCacheEntry_s::dev, fingerPrint_s::entry, and fprintCacheEntry_s::ino.

Referenced by rpmtsRun().

fingerPrint fpLookup | ( | fingerPrintCache | cache,
|  | const char * | dirName,
|  | const char * | baseName,
|  | int | scareMem
| ) |  |

Return finger print of a file path.

Parameters

  cache | pointer to fingerprint cache
  dirName | leading directory name of file path
  baseName | base name of file path
  scareMem |

Returns
  pointer to the finger print associated with a file path.

Definition at line 188 of file fprint.c.

References doLookup().

Referenced by rpmdbFindByFile().

void fpLookupList | ( | fingerPrintCache | cache,
|  | const char ** | dirNames,
|  | const char ** | baseNames,
|  | const rpmuint32_t * | dirIndexes,
|  | rpmuint32_t | fileCount,
|  | fingerPrint * | fpList
| ) |  |

Return finger prints of an array of file paths.

Warning
  : scareMem is assumed!

Parameters

  cache | pointer to fingerprint cache
  dirNames | directory names
  baseNames | file base names
  dirIndexes | index into dirNames for each baseNames
  fileCount | number of file entries

Return values

  *fpList | array of finger prints

Definition at line 228 of file fprint.c.

References fingerPrint_s::baseName, doLookup(), fingerPrint_s::entry, and fingerPrint_s::subDir.

Referenced by rpmdbFindFpList(), and rpmtsRun().