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4110376e87
There's no real reason to avoid commands for the next commit; this has the benefit that we can remove the infrastructure to queue commands. The only exceptions are the commit command and the opening phase. We still only allow one commit at a time, but that's mainly run off a timer which can try again later. For the JSONRPC API used for testing, we can simply fail the commit if one is in progress. For opening we add an explicit peer_open_complete() call in place of using the command infrastructure. Commands are now outside the state machine altogether: we simply have it return the new state instead of the command status. The JSONRPC functions can also now run commands directly. This removes the idea of "peercond" as well: you can simply examine the states to determine whether an input is valid. There are fine-grained helpers for this now, too. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
121 lines
2.8 KiB
C
121 lines
2.8 KiB
C
#ifndef LIGHTNING_STATE_TYPES_H
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#define LIGHTNING_STATE_TYPES_H
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#include "config.h"
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/* FIXME: cdump is really dumb, so we put these in their own header. */
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#include "lightning.pb-c.h"
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enum state {
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STATE_INIT,
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/*
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* Opening.
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*/
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STATE_OPEN_WAIT_FOR_OPEN_NOANCHOR,
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STATE_OPEN_WAIT_FOR_OPEN_WITHANCHOR,
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STATE_OPEN_WAIT_FOR_ANCHOR_CREATE,
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STATE_OPEN_WAIT_FOR_ANCHOR,
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STATE_OPEN_WAIT_FOR_COMMIT_SIG,
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STATE_OPEN_WAITING_OURANCHOR,
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STATE_OPEN_WAITING_THEIRANCHOR,
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STATE_OPEN_WAITING_OURANCHOR_THEYCOMPLETED,
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STATE_OPEN_WAITING_THEIRANCHOR_THEYCOMPLETED,
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STATE_OPEN_WAIT_FOR_COMPLETE_OURANCHOR,
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STATE_OPEN_WAIT_FOR_COMPLETE_THEIRANCHOR,
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/*
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* Normal state.
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*/
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STATE_NORMAL,
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STATE_NORMAL_COMMITTING,
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/*
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* Closing (handled outside state machine).
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*/
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STATE_CLEARING,
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STATE_CLEARING_COMMITTING,
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STATE_MUTUAL_CLOSING,
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/* Four states to represent closing onchain (for getpeers) */
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STATE_CLOSE_ONCHAIN_CHEATED,
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STATE_CLOSE_ONCHAIN_THEIR_UNILATERAL,
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STATE_CLOSE_ONCHAIN_OUR_UNILATERAL,
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STATE_CLOSE_ONCHAIN_MUTUAL,
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/* All closed. */
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STATE_CLOSED,
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/*
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* Where angels fear to tread.
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*/
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/* Bad packet from them / protocol breakdown. */
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STATE_ERR_BREAKDOWN,
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/* Their anchor didn't reach blockchain in reasonable time. */
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STATE_ERR_ANCHOR_TIMEOUT,
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/* We saw a tx we didn't sign. */
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STATE_ERR_INFORMATION_LEAK,
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/* We ended up in an unexpected state. */
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STATE_ERR_INTERNAL,
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STATE_MAX
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};
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enum state_input {
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/*
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* Packet inputs.
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*/
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PKT_OPEN = PKT__PKT_OPEN,
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PKT_OPEN_ANCHOR = PKT__PKT_OPEN_ANCHOR,
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PKT_OPEN_COMMIT_SIG = PKT__PKT_OPEN_COMMIT_SIG,
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PKT_OPEN_COMPLETE = PKT__PKT_OPEN_COMPLETE,
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/* Updating the commit transaction: new HTLC */
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PKT_UPDATE_ADD_HTLC = PKT__PKT_UPDATE_ADD_HTLC,
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/* Updating the commit transaction: I have your R value! */
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PKT_UPDATE_FULFILL_HTLC = PKT__PKT_UPDATE_FULFILL_HTLC,
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/* Updating the commit transaction: your HTLC failed upstream */
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PKT_UPDATE_FAIL_HTLC = PKT__PKT_UPDATE_FAIL_HTLC,
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/* Committing updates */
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PKT_UPDATE_COMMIT = PKT__PKT_UPDATE_COMMIT,
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PKT_UPDATE_REVOCATION = PKT__PKT_UPDATE_REVOCATION,
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/* If they want to close. */
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PKT_CLOSE_CLEARING = PKT__PKT_CLOSE_CLEARING,
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/* Something unexpected went wrong. */
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PKT_ERROR = PKT__PKT_ERROR,
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/*
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* Non-packet inputs.
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*/
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INPUT_NONE,
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/*
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* Bitcoin events
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*/
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/* Bitcoin anchor tx created. */
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BITCOIN_ANCHOR_CREATED,
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/* It reached the required depth. */
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BITCOIN_ANCHOR_DEPTHOK,
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/* It didn't reach the required depth in time. */
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BITCOIN_ANCHOR_TIMEOUT,
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/* No more HTLCs in either commitment tx. */
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INPUT_HTLCS_CLEARED,
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/*
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* Timeouts.
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*/
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INPUT_CLOSE_COMPLETE_TIMEOUT,
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/* Commands */
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CMD_OPEN_WITH_ANCHOR,
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CMD_OPEN_WITHOUT_ANCHOR,
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CMD_SEND_HTLC_ADD,
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CMD_SEND_HTLC_FULFILL,
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CMD_SEND_HTLC_FAIL,
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CMD_SEND_COMMIT,
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INPUT_MAX
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};
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#endif /* LIGHTNING_STATE_TYPES_H */
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