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rippled/src/ripple/validators/api/Source.h
2013-09-25 17:27:06 -07:00

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2.3 KiB
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//------------------------------------------------------------------------------
/*
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.
*/
//==============================================================================
#ifndef RIPPLE_VALIDATORS_SOURCE_H_INCLUDED
#define RIPPLE_VALIDATORS_SOURCE_H_INCLUDED
namespace ripple {
namespace Validators {
/** A source of validator descriptors. */
class Source
{
public:
/** A Source's descriptor for a Validator. */
struct Info
{
/** The unique key for this validator. */
RipplePublicKey publicKey;
/** Optional human readable comment describing the validator. */
String label;
};
/** Destroy the Source.
This can be called from any thread. If the Source is busy
fetching, the destructor must block until the operation is either
canceled or complete.
*/
virtual ~Source () { }
virtual String name () = 0;
virtual String uniqueID () = 0;
virtual String createParam () = 0;
/** Fetch the most recent list from the Source.
If possible, the Source should periodically poll the
CancelCallback, and abort the operation if shouldCancel
returns `true`.
This call will block.
*/
struct Result
{
Result ();
void swapWith (Result& other);
bool success;
String message;
Time expirationTime;
Array <Info> list;
};
virtual Result fetch (CancelCallback& callback, Journal journal) = 0;
};
}
}
#endif