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Sereal - Fast, compact, powerful binary (de-)serialization
use Sereal qw( get_sereal_decoder get_sereal_encoder clear_sereal_object_cache encode_sereal decode_sereal read_sereal read_sereal_file write_sereal write_sereal_file looks_like_sereal scalar_looks_like_sereal sereal_encode_with_object sereal_decode_with_object decode_sereal_with_header_data sereal_decode_with_header_with_object sereal_decode_only_header_with_object sereal_decode_only_header_with_offset_with_object sereal_decode_with_header_and_offset_with_object sereal_decode_with_offset_with_object SRL_UNCOMPRESSED SRL_SNAPPY SRL_ZLIB SRL_ZSTD ); # Note: For performance reasons, you should prefer the OO interface, # or sereal_(en|de)code_with_object over the stateless # encode_sereal/decode_sereal functions. # See the Sereal::Performance documentation for details.
Sereal is an efficient, compact-output, binary and feature-rich serialization protocol. The Perl encoder is implemented as the Sereal::Encoder module, the Perl decoder correspondingly as Sereal::Decoder. They are distributed separately to allow for safe upgrading without downtime. (Hint: Upgrade the decoder everywhere first, then the encoder.)
Sereal module is a very thin wrapper around both
Sereal::Decoder. It depends on both and loads both. So if you have a user of both encoder and decoder, it is enough to depend on a particular version of
Sereal and you'll get the most recent released versions of
Sereal::Decoder whose version is smaller than or equal to the version of
Sereal you depend on.
The protocol specification and many other bits of documentation can be found in the github repository. Right now, the specification is at https://github.com/Sereal/Sereal/blob/master/sereal_spec.pod, there is a discussion of the design objectives in https://github.com/Sereal/Sereal/blob/master/README.pod, and the output of our benchmarks can be seen at https://github.com/Sereal/Sereal/wiki/Sereal-Comparison-Graphs.
It is recommended to use the object-oriented interface of
Sereal::Decoder if you care about performance. For detailed performance considerations, see Sereal::Performance.
You can optionally import five functions from
encode_sereal is the same function as Sereal::Encoder's
looks_like_sereal are the same as Sereal::Decoder's functions of the same names. Finally, you can import the advanced functional interface
sereal_decode_with_object. Again, see Sereal::Performance for information about those.
After loading the
Sereal module, both
Sereal::Decoder are guaranteed to be loaded, so you can use their object-oriented interface.
Returns a Sereal::Encoder with the given options. This encoder will be shared by other calls to this function.
Returns a Sereal::Decoder with the given options. This encoder will be shared by other calls to this function.
Clears cache of objects created via get_sereal_encoder() and get_sereal_decoder(). Returns the number of objects that were removed from the cache (the sum of both types).
Write a sereal packet to $FILENAME. See Sereal::Encoder::encode_to_file().
alias for write_sereal_file()
Read a sereal packet from a file. See Sereal::Decoder::decode_from_file().
alias for read_sereal_file()
For reporting bugs, please use the github bug tracker at http://github.com/Sereal/Sereal/issues.
For support and discussion of Sereal, there are two Google Groups:
Announcements around Sereal (extremely low volume): https://groups.google.com/forum/?fromgroups#!forum/sereal-announce
Sereal development list: https://groups.google.com/forum/?fromgroups#!forum/sereal-dev
Steffen Mueller <email@example.com>
This module was originally developed for Booking.com. With approval from Booking.com, this module was generalized and published on CPAN, for which the authors would like to express their gratitude.
This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself.
Copyright (C) 2012, 2013, 2014 by Steffen Mueller