core-lightning/common/htlc_state.c

#include <ccan/array_size/array_size.h>
#include <common/htlc.h>
  #include "gen_htlc_state_names.h"

const char *htlc_state_name(enum htlc_state s)
{
	size_t i;

	for (i = 0; enum_htlc_state_names[i].name; i++)
		if (enum_htlc_state_names[i].v == s)
			return enum_htlc_state_names[i].name;
	return "unknown";
}

/* This is the flags for each state. */
static const int per_state_bits[] = {
	[SENT_ADD_HTLC] = HTLC_ADDING + HTLC_LOCAL_F_OWNER
	+ HTLC_REMOTE_F_PENDING,

	[SENT_ADD_COMMIT] = HTLC_ADDING + HTLC_LOCAL_F_OWNER
	+ HTLC_REMOTE_F_COMMITTED
	+ HTLC_REMOTE_F_WAS_COMMITTED,

	[RCVD_ADD_REVOCATION] = HTLC_ADDING + HTLC_LOCAL_F_OWNER
	+ HTLC_REMOTE_F_COMMITTED
	+ HTLC_REMOTE_F_REVOKED
	+ HTLC_LOCAL_F_PENDING
	+ HTLC_REMOTE_F_WAS_COMMITTED,

	[RCVD_ADD_ACK_COMMIT] = HTLC_ADDING + HTLC_LOCAL_F_OWNER
	+ HTLC_REMOTE_F_COMMITTED
	+ HTLC_REMOTE_F_REVOKED
	+ HTLC_LOCAL_F_COMMITTED
	+ HTLC_LOCAL_F_WAS_COMMITTED
	+ HTLC_REMOTE_F_WAS_COMMITTED,

	[SENT_ADD_ACK_REVOCATION] = HTLC_LOCAL_F_OWNER
	+ HTLC_REMOTE_F_COMMITTED
	+ HTLC_REMOTE_F_REVOKED
	+ HTLC_LOCAL_F_COMMITTED
	+ HTLC_LOCAL_F_REVOKED
	+ HTLC_LOCAL_F_WAS_COMMITTED
	+ HTLC_REMOTE_F_WAS_COMMITTED,

	[RCVD_REMOVE_HTLC] = HTLC_REMOVING + HTLC_LOCAL_F_OWNER
	+ HTLC_LOCAL_F_PENDING + HTLC_LOCAL_F_COMMITTED
	+ HTLC_REMOTE_F_COMMITTED
	+ HTLC_LOCAL_F_WAS_COMMITTED
	+ HTLC_REMOTE_F_WAS_COMMITTED,

	[RCVD_REMOVE_COMMIT] = HTLC_REMOVING + HTLC_LOCAL_F_OWNER
	+ HTLC_REMOTE_F_COMMITTED
	+ HTLC_LOCAL_F_WAS_COMMITTED
	+ HTLC_REMOTE_F_WAS_COMMITTED,

	[SENT_REMOVE_REVOCATION] = HTLC_REMOVING + HTLC_LOCAL_F_OWNER
	+ HTLC_REMOTE_F_COMMITTED
	+ HTLC_LOCAL_F_REVOKED
	+ HTLC_REMOTE_F_PENDING
	+ HTLC_LOCAL_F_WAS_COMMITTED
	+ HTLC_REMOTE_F_WAS_COMMITTED,

	[SENT_REMOVE_ACK_COMMIT] = HTLC_REMOVING + HTLC_LOCAL_F_OWNER
	+ HTLC_LOCAL_F_REVOKED
	+ HTLC_LOCAL_F_WAS_COMMITTED
	+ HTLC_REMOTE_F_WAS_COMMITTED,

	[RCVD_REMOVE_ACK_REVOCATION] = HTLC_LOCAL_F_OWNER
	+ HTLC_LOCAL_F_REVOKED
	+ HTLC_REMOTE_F_REVOKED
	+ HTLC_LOCAL_F_WAS_COMMITTED
	+ HTLC_REMOTE_F_WAS_COMMITTED,

	[RCVD_ADD_HTLC] = HTLC_ADDING + HTLC_REMOTE_F_OWNER
	+ HTLC_LOCAL_F_PENDING,

	[RCVD_ADD_COMMIT] = HTLC_ADDING + HTLC_REMOTE_F_OWNER
	+ HTLC_LOCAL_F_COMMITTED
	+ HTLC_LOCAL_F_WAS_COMMITTED,

	[SENT_ADD_REVOCATION] = HTLC_ADDING + HTLC_REMOTE_F_OWNER
	+ HTLC_LOCAL_F_COMMITTED
	+ HTLC_LOCAL_F_REVOKED
	+ HTLC_REMOTE_F_PENDING
	+ HTLC_LOCAL_F_WAS_COMMITTED,

	[SENT_ADD_ACK_COMMIT] = HTLC_ADDING + HTLC_REMOTE_F_OWNER
	+ HTLC_LOCAL_F_COMMITTED
	+ HTLC_LOCAL_F_REVOKED
	+ HTLC_REMOTE_F_COMMITTED
	+ HTLC_LOCAL_F_WAS_COMMITTED
	+ HTLC_REMOTE_F_WAS_COMMITTED,

	[RCVD_ADD_ACK_REVOCATION] = HTLC_REMOTE_F_OWNER
	+ HTLC_LOCAL_F_COMMITTED
	+ HTLC_LOCAL_F_REVOKED
	+ HTLC_REMOTE_F_COMMITTED
	+ HTLC_REMOTE_F_REVOKED
	+ HTLC_LOCAL_F_WAS_COMMITTED
	+ HTLC_REMOTE_F_WAS_COMMITTED,

	[SENT_REMOVE_HTLC] = HTLC_REMOVING + HTLC_REMOTE_F_OWNER
	+ HTLC_REMOTE_F_PENDING
	+ HTLC_LOCAL_F_COMMITTED
	+ HTLC_REMOTE_F_COMMITTED
	+ HTLC_LOCAL_F_WAS_COMMITTED
	+ HTLC_REMOTE_F_WAS_COMMITTED,

	[SENT_REMOVE_COMMIT] = HTLC_REMOVING + HTLC_REMOTE_F_OWNER
	+ HTLC_LOCAL_F_COMMITTED
	+ HTLC_LOCAL_F_WAS_COMMITTED
	+ HTLC_REMOTE_F_WAS_COMMITTED,

	[RCVD_REMOVE_REVOCATION] = HTLC_REMOVING + HTLC_REMOTE_F_OWNER
	+ HTLC_LOCAL_F_COMMITTED
	+ HTLC_REMOTE_F_REVOKED
	+ HTLC_LOCAL_F_PENDING
	+ HTLC_LOCAL_F_WAS_COMMITTED
	+ HTLC_REMOTE_F_WAS_COMMITTED,

	[RCVD_REMOVE_ACK_COMMIT] = HTLC_REMOVING + HTLC_REMOTE_F_OWNER
	+ HTLC_REMOTE_F_REVOKED
	+ HTLC_LOCAL_F_WAS_COMMITTED
	+ HTLC_REMOTE_F_WAS_COMMITTED,

	[SENT_REMOVE_ACK_REVOCATION] = HTLC_REMOTE_F_OWNER
	+ HTLC_REMOTE_F_REVOKED
	+ HTLC_LOCAL_F_REVOKED
	+ HTLC_LOCAL_F_WAS_COMMITTED
	+ HTLC_REMOTE_F_WAS_COMMITTED
};

int htlc_state_flags(enum htlc_state state)
{
	assert(state < ARRAY_SIZE(per_state_bits));
	assert(per_state_bits[state]);
	return per_state_bits[state];
}