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00c84dfe5c
* Restrict to 80-columns and other style cleanups. * Make pathfinding a free function and hide the class Pathfinder. * Split off unrelated utility functions into separate files.
74 lines
2.3 KiB
C++
74 lines
2.3 KiB
C++
//------------------------------------------------------------------------------
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/*
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This file is part of rippled: https://github.com/ripple/rippled
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Copyright (c) 2012, 2013 Ripple Labs Inc.
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Permission to use, copy, modify, and/or distribute this software for any
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purpose with or without fee is hereby granted, provided that the above
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copyright notice and this permission notice appear in all copies.
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THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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ANY SPECIAL , DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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//==============================================================================
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#include <ripple/app/paths/Credit.h>
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namespace ripple {
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STAmount creditLimit (
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LedgerEntrySet& ledger,
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Account const& account,
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Account const& issuer,
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Currency const& currency)
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{
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STAmount result ({currency, account});
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auto sleRippleState = ledger.entryCache (ltRIPPLE_STATE,
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Ledger::getRippleStateIndex (account, issuer, currency));
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if (sleRippleState)
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{
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result = sleRippleState->getFieldAmount (
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account < issuer ? sfLowLimit : sfHighLimit);
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result.setIssuer (account);
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}
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assert (result.getIssuer () == account);
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assert (result.getCurrency () == currency);
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return result;
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}
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STAmount creditBalance (
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LedgerEntrySet& ledger,
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Account const& account,
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Account const& issuer,
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Currency const& currency)
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{
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STAmount result ({currency, account});
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auto sleRippleState = ledger.entryCache (ltRIPPLE_STATE,
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Ledger::getRippleStateIndex (account, issuer, currency));
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if (sleRippleState)
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{
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result = sleRippleState->getFieldAmount (sfBalance);
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if (account < issuer)
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result.negate ();
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result.setIssuer (account);
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}
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assert (result.getIssuer () == account);
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assert (result.getCurrency () == currency);
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return result;
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}
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} // ripple
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