Function filecoin_proofs::unseal_range

source · [−]
pub fn unseal_range<P, R, W, Tree>(
    porep_config: PoRepConfig, 
    cache_path: P, 
    sealed_sector: R, 
    unsealed_output: W, 
    prover_id: ProverId, 
    sector_id: SectorId, 
    comm_d: Commitment, 
    ticket: Ticket, 
    offset: UnpaddedByteIndex, 
    num_bytes: UnpaddedBytesAmount
) -> Result<UnpaddedBytesAmount> where
    P: Into<PathBuf> + AsRef<Path>,
    R: Read,
    W: Write,
    Tree: 'static + MerkleTreeTrait, 
Expand description

Unseals the sector read from sealed_sector and returns the bytes for a piece whose first (unpadded) byte begins at offset and ends at offset plus num_bytes, inclusive. Note that the entire sector is unsealed each time this function is called.

Arguments

  • porep_config - porep configuration containing the sector size.
  • cache_path - path to the directory in which the sector data’s Merkle Tree is written.
  • sealed_sector - a byte source from which we read sealed sector data.
  • unsealed_output - a byte sink to which we write unsealed, un-bit-padded sector bytes.
  • prover_id - the prover-id that sealed the sector.
  • sector_id - the sector-id of the sealed sector.
  • comm_d - the commitment to the sector’s data.
  • ticket - the ticket that was used to generate the sector’s replica-id.
  • offset - the byte index in the unsealed sector of the first byte that we want to read.
  • num_bytes - the number of bytes that we want to read.