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deb1da5f57
One watcher includes multiple watchings, and their events are sent out through one channel. For the received event, user would like to know which watching it belongs to. Introduce a watch ID. When watching on some key, user will get a watch ID. The watch ID is attached to all events that is observed by this watch.
38 lines
948 B
Protocol Buffer
38 lines
948 B
Protocol Buffer
syntax = "proto3";
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package storagepb;
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import "gogoproto/gogo.proto";
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option (gogoproto.marshaler_all) = true;
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option (gogoproto.sizer_all) = true;
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option (gogoproto.unmarshaler_all) = true;
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option (gogoproto.goproto_getters_all) = false;
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option (gogoproto.goproto_enum_prefix_all) = false;
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message KeyValue {
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bytes key = 1;
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int64 create_revision = 2;
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// mod_revision is the last modified revision of the key.
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int64 mod_revision = 3;
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// version is the version of the key. A deletion resets
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// the version to zero and any modification of the key
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// increases its version.
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int64 version = 4;
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bytes value = 5;
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}
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message Event {
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enum EventType {
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PUT = 0;
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DELETE = 1;
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EXPIRE = 2;
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}
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EventType type = 1;
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// a put event contains the current key-value
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// a delete/expire event contains the previous
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// key-value
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KeyValue kv = 2;
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// watchID is the ID of watching this event is sent to.
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int64 watchID = 3;
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}
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