mirror of
https://github.com/XRPLF/rippled.git
synced 2026-08-03 04:01:01 +00:00
367c3a5bfc
The View hierarchy of classes is reorganized to include new classes with member functions moved and renamed, to solve defects in the original design: OpenView accumulates raw state and tx changes and can be applied to the base. ApplyView accumulates changes for a single transaction, including metadata, and can be applied to an OpenView. The Sandbox allows changes with the option to apply or throw them out. The PaymentSandbox provides a sandbox with account credit deferral. Call sites are changed to use the class appropriate for the task.
76 lines
2.3 KiB
C++
76 lines
2.3 KiB
C++
//------------------------------------------------------------------------------
|
|
/*
|
|
This file is part of rippled: https://github.com/ripple/rippled
|
|
Copyright (c) 2012, 2013 Ripple Labs Inc.
|
|
|
|
Permission to use, copy, modify, and/or distribute this software for any
|
|
purpose with or without fee is hereby granted, provided that the above
|
|
copyright notice and this permission notice appear in all copies.
|
|
|
|
THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
|
|
WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
|
MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
|
|
ANY SPECIAL , DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
|
WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
|
ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
|
|
OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
|
*/
|
|
//==============================================================================
|
|
|
|
#include <BeastConfig.h>
|
|
#include <ripple/ledger/ReadView.h>
|
|
#include <ripple/protocol/STAmount.h>
|
|
#include <ripple/protocol/Indexes.h>
|
|
|
|
namespace ripple {
|
|
|
|
STAmount
|
|
creditLimit (
|
|
ReadView const& view,
|
|
AccountID const& account,
|
|
AccountID const& issuer,
|
|
Currency const& currency)
|
|
{
|
|
STAmount result ({currency, account});
|
|
|
|
auto sleRippleState = view.read(
|
|
keylet::line(account, issuer, currency));
|
|
|
|
if (sleRippleState)
|
|
{
|
|
result = sleRippleState->getFieldAmount (
|
|
account < issuer ? sfLowLimit : sfHighLimit);
|
|
result.setIssuer (account);
|
|
}
|
|
|
|
assert (result.getIssuer () == account);
|
|
assert (result.getCurrency () == currency);
|
|
return result;
|
|
}
|
|
|
|
STAmount creditBalance (
|
|
ReadView const& view,
|
|
AccountID const& account,
|
|
AccountID const& issuer,
|
|
Currency const& currency)
|
|
{
|
|
STAmount result ({currency, account});
|
|
|
|
auto sleRippleState = view.read(
|
|
keylet::line(account, issuer, currency));
|
|
|
|
if (sleRippleState)
|
|
{
|
|
result = sleRippleState->getFieldAmount (sfBalance);
|
|
if (account < issuer)
|
|
result.negate ();
|
|
result.setIssuer (account);
|
|
}
|
|
|
|
assert (result.getIssuer () == account);
|
|
assert (result.getCurrency () == currency);
|
|
return result;
|
|
}
|
|
|
|
} // ripple
|