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db/update/Walk: document FindAncestorLoop()

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Max Kellermann 2014-02-09 10:45:38 +01:00
parent ace3f37af4
commit e29a8b3a9c
1 changed files with 6 additions and 0 deletions
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6
src/db/update/Walk.cxx
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@ -152,6 +152,12 @@ update_directory_stat(Storage &storage, Directory &directory)
} }
#endif #endif
/**
* Check the ancestors of the given #Directory and see if there's one
* with the same device/inode number, building a loop.
*
* @return 1 if a loop was found, 0 if not, -1 on I/O error
*/
static int static int
FindAncestorLoop(Storage &storage, Directory *parent, FindAncestorLoop(Storage &storage, Directory *parent,
unsigned inode, unsigned device) unsigned inode, unsigned device)