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29 lines
1.7 KiB
Markdown
29 lines
1.7 KiB
Markdown
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# Chunks Disk Format
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The following describes the format of a single chunks file, which is created in the `chunks/` directory of a block.
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```
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┌────────────────────────────┬──────────────────┐
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│ magic(0x85BD40DD) <4 byte> | version <1 byte> │
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├────────────────────────────┴──────────────────┤
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│ Body ... │
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└───────────────────────────────────────────────┘
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```
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Available versions:
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* v1 (`1`)
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## Body (v1)
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The body contains a sequence of chunks, each of which has the following format.
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```
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┌─────────────────────────────────────────────────────────┐
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│ ┌──────────────┬───────────────────┬────────────┐ │
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│ │ len <varint> | encoding <1 byte> │ data │ ... │
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│ └──────────────┴───────────────────┴────────────┘ │
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└─────────────────────────────────────────────────────────┘
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```
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The length marks the length of the encoding byte and data combined.
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The CRC checksum is calculated over the encoding byte and data.
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