mirror of
https://github.com/Xahau/xahaud.git
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5d42604efd
* New src/ripple/crypto and src/ripple/protocol directories * Merged src/ripple/common into src/ripple/basics * Move resource/api files up a level * Add headers for "include what you use" * Normalized include guards * Renamed to JsonFields.h * Remove obsolete files * Remove net.h unity header * Remove resource.h unity header * Removed some deprecated unity includes
97 lines
2.9 KiB
C++
97 lines
2.9 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_PROTOCOL_HASHPREFIX_H_INCLUDED
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#define RIPPLE_PROTOCOL_HASHPREFIX_H_INCLUDED
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#include <cstdint>
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namespace ripple {
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/** Prefix for hashing functions.
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These prefixes are inserted before the source material used to generate
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various hashes. This is done to put each hash in its own "space." This way,
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two different types of objects with the same binary data will produce
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different hashes.
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Each prefix is a 4-byte value with the last byte set to zero and the first
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three bytes formed from the ASCII equivalent of some arbitrary string. For
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example "TXN".
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@note Hash prefixes are part of the Ripple protocol.
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@ingroup protocol
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*/
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class HashPrefix
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{
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private:
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std::uint32_t m_prefix;
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HashPrefix (char a, char b, char c)
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: m_prefix (0)
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{
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m_prefix = a;
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m_prefix = (m_prefix << 8) + b;
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m_prefix = (m_prefix << 8) + c;
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m_prefix = m_prefix << 8;
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}
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public:
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HashPrefix(HashPrefix const&) = delete;
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HashPrefix& operator=(HashPrefix const&) = delete;
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/** Returns the hash prefix associated with this object */
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operator std::uint32_t () const
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{
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return m_prefix;
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}
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// VFALCO TODO Expand the description to complete, concise sentences.
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//
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/** transaction plus signature to give transaction ID */
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static HashPrefix const transactionID;
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/** transaction plus metadata */
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static HashPrefix const txNode;
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/** account state */
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static HashPrefix const leafNode;
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/** inner node in tree */
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static HashPrefix const innerNode;
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/** ledger master data for signing */
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static HashPrefix const ledgerMaster;
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/** inner transaction to sign */
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static HashPrefix const txSign;
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/** validation for signing */
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static HashPrefix const validation;
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/** proposal for signing */
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static HashPrefix const proposal;
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};
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} // ripple
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#endif
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