fast-bridge: Send required accounts for cross domain transfer #375
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For cross domain transfers, an acknowledgement is sent from destination to source in form of a token transfer. The packet contains the memo that has the information about unlocking the funds. The source would then parse the memo and unlock the funds to the solver mentioned in the memo. Since we only have token transfers enabled and no cross chain messages, a token needs to be transferred. For this, we create a dummy token owned by the program which mints a token everytime and sends a transfer. The timeout of the transfer is set to infinite so that it always reaches the counterparty chain.
Also the
on_receive_transfermethod accepts a memo which unlocks the funds to the solver. Right now it is being called by the auctioneer but once the hooks are enabled onsolana-ibcprogram, this method would then be called by thesolana-ibcprogram.