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3ca71d5e8d
A deep internal part of #895. Blockchainer interface is also extended for various uses of these methods.
29 lines
1.3 KiB
Go
29 lines
1.3 KiB
Go
/*
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Package core implements Neo ledger functionality.
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It's built around the Blockchain structure that maintains state of the ledger.
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Events
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You can subscribe to Blockchain events using a set of Subscribe and Unsubscribe
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methods. These methods accept channels that will be used to send appropriate
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events, so you can control buffering. Channels are never closed by Blockchain,
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you can close them after unsubscription.
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Unlike RPC-level subscriptions these don't allow event filtering because it
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doesn't improve overall efficiency much (when you're using Blockchain you're
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in the same process with it and filtering on your side is not that different
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from filtering on Blockchain side).
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The same level of ordering guarantees as with RPC subscriptions is provided,
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albeit for a set of event channels, so at first transaction execution is
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announced via appropriate channels, then followed by notifications generated
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during this execution, then followed by transaction announcement and then
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followed by block announcement. Transaction announcements are ordered the same
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way they're stored in the block.
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Be careful using these subscriptions, this mechanism is not intended to be used
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by lots of subscribers and failing to read from event channels can affect
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other Blockchain operations.
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*/
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package core
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