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1320898fbe
These changes eliminate the Env's OpenLedger member and make transactions go through the Application associated with each instance of the Env, making the unit tests follow a code path closer to the production code path. * Add Env::open() for open ledger * Add Env::now() * Rename to Env::current() * Inject ManualTimeKeeper in Env Application * Make Config mutable * Move setupConfigForUnitTests * Launch Env Application thread * Use Application ledgers in Env * Adjust Application clock on ledger close * Adjust close time for close resolution * Scrub obsolete clock types * Enable features via Env ctor * Make Env::master Account object global * Cache SSL context (performance) * Cache master wallet keys in Ledger ctor (performance)
103 lines
3.2 KiB
C++
103 lines
3.2 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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#ifndef RIPPLE_CORE_TIMEKEEPER_H_INCLUDED
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#define RIPPLE_CORE_TIMEKEEPER_H_INCLUDED
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#include <beast/chrono/abstract_clock.h>
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#include <beast/utility/Journal.h>
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#include <ripple/basics/chrono.h>
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#include <string>
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#include <vector>
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namespace ripple {
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/** Manages various times used by the server. */
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class TimeKeeper
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: public beast::abstract_clock<NetClock>
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{
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public:
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virtual ~TimeKeeper() = default;
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/** Launch the internal thread.
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The internal thread synchronizes local network time
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using the provided list of SNTP servers.
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*/
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virtual
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void
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run (std::vector<std::string> const& servers) = 0;
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/** Returns the estimate of wall time, in network time.
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The network time is wall time adjusted for the Ripple
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epoch, the beginning of January 1st, 2000. Each server
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can compute a different value for network time. Other
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servers value for network time is not directly observable,
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but good guesses can be made by looking at validators'
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positions on close times.
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Servers compute network time by adjusting a local wall
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clock using SNTP and then adjusting for the epoch.
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*/
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virtual
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time_point
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now() const = 0;
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/** Returns the close time, in network time.
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Close time is the time the network would agree that
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a ledger closed, if a ledger closed right now.
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The close time represents the notional "center"
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of the network. Each server assumes its clock
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is correct, and tries to pull the close time towards
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its measure of network time.
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*/
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virtual
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time_point
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closeTime() const = 0;
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/** Adjust the close time.
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This is called in response to received validations.
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*/
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virtual
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void
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adjustCloseTime (std::chrono::duration<std::int32_t> amount) = 0;
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// This may return a negative value
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virtual
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std::chrono::duration<std::int32_t>
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nowOffset() const = 0;
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// This may return a negative value
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virtual
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std::chrono::duration<std::int32_t>
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closeOffset() const = 0;
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};
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extern
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std::unique_ptr<TimeKeeper>
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make_TimeKeeper(beast::Journal j);
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} // ripple
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#endif
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