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Search and iterate: libblkid Reference Manual

Search and iterate

Search and iterate — search devices and iterate over devices in the cache.

Types and Values

Description

Note that high-level probing API provides information about superblocks (filesystems/raids) only. For partitions and topology is necessary to use the low-level API.

Functions

blkid_dev_devname ()

const char *
blkid_dev_devname (blkid_dev dev);

blkid_dev_has_tag ()

int
blkid_dev_has_tag (blkid_dev dev,
                   const char *type,
                   const char *value);

blkid_dev_iterate_begin ()

blkid_dev_iterate
blkid_dev_iterate_begin (blkid_cache cache);

blkid_dev_iterate_end ()

void
blkid_dev_iterate_end (blkid_dev_iterate iterate);

blkid_dev_next ()

int
blkid_dev_next (blkid_dev_iterate iterate,
                blkid_dev *dev);

blkid_dev_set_search ()

int
blkid_dev_set_search (blkid_dev_iterate iter,
                      const char *search_type,
                      const char *search_value);

blkid_find_dev_with_tag ()

blkid_dev
blkid_find_dev_with_tag (blkid_cache cache,
                         const char *type,
                         const char *value);

blkid_get_dev ()

blkid_dev
blkid_get_dev (blkid_cache cache,
               const char *devname,
               int flags);

blkid_get_devname ()

char *
blkid_get_devname (blkid_cache cache,
                   const char *token,
                   const char *value);

blkid_get_tag_value ()

char *
blkid_get_tag_value (blkid_cache cache,
                     const char *tagname,
                     const char *devname);

blkid_tag_iterate_begin ()

blkid_tag_iterate
blkid_tag_iterate_begin (blkid_dev dev);

blkid_tag_iterate_end ()

void
blkid_tag_iterate_end (blkid_tag_iterate iterate);

blkid_tag_next ()

int
blkid_tag_next (blkid_tag_iterate iterate,
                const char **type,
                const char **value);

Types and Values

blkid_dev

typedef struct blkid_struct_dev *blkid_dev;

The device object keeps information about one device


blkid_dev_iterate

typedef struct blkid_struct_dev_iterate *blkid_dev_iterate;

devices iterator for high-level (blkid_cache) API


blkid_tag_iterate

typedef struct blkid_struct_tag_iterate *blkid_tag_iterate;

tags iterator for high-level (blkid_cache) API