[−][src]Crate blobby
This crate provides several iterators over simply binary blob storage.
Storage format
Data in the storage format starts with magical string "blobby', next is one
byte which denotes how many bytes are used for blob length prefixes. For
example "blobby1" means that 1 byte is used for length, and "blobby2",
"blobby4", "blobby8" mean 2, 4 and 8 bytes respectively (this number will
be denoted as n
).
After header goes a sequence of records. Each record starts with prefix of
n
bytes in which record length (excluding prefix) is stored using little
endian format.
Examples
First line represents input binary string and second line shows blobs stored in it.
"blobby1\x05hello\x01 \x00\x05world"
"hello", " ", "", "world"
Example for n=2
, note that length is given in little endian format:
"blobby2\x03\x00foo\x00\x00\x03\x00bar"
"foo", "", "bar"
Structs
Blob2Iterator | Iterator over binary blob pairs |
Blob3Iterator | Iterator over binary blob triples |
Blob4Iterator | Iterator over binary blob quadruples |
BlobIterator | Iterator over binary blobs |