65 lines
1.6 KiB
Go
65 lines
1.6 KiB
Go
package shardctrler
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//
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// Shardctrler with InitConfig, Query, and ChangeConfigTo methods
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//
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import (
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"6.5840/kvsrv1"
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"6.5840/kvtest1"
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"6.5840/shardkv1/shardcfg"
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"6.5840/tester1"
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)
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// ShardCtrler for the controller and kv clerk.
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type ShardCtrler struct {
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clnt *tester.Clnt
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kvtest.IKVClerk
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killed int32 // set by Kill()
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// Your data here.
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}
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// Make a ShardCltler, which stores its state in a kvsrv.
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func MakeShardCtrler(clnt *tester.Clnt) *ShardCtrler {
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sck := &ShardCtrler{clnt: clnt}
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srv := tester.ServerName(tester.GRP0, 0)
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sck.IKVClerk = kvsrv.MakeClerk(clnt, srv)
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// Your code here.
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return sck
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}
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// The tester calls InitController() before starting a new
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// controller. In part A, this method doesn't need to do anything. In
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// B and C, this method implements recovery.
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func (sck *ShardCtrler) InitController() {
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}
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// Called once by the tester to supply the first configuration. You
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// can marshal ShardConfig into a string using shardcfg.String(), and
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// then Put it in the kvsrv for the controller at version 0. You can
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// pick the key to name the configuration. The initial configuration
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// lists shardgrp shardcfg.Gid1 for all shards.
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func (sck *ShardCtrler) InitConfig(cfg *shardcfg.ShardConfig) {
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// Your code here
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}
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// Called by the tester to ask the controller to change the
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// configuration from the current one to new. While the controller
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// changes the configuration it may be superseded by another
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// controller.
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func (sck *ShardCtrler) ChangeConfigTo(new *shardcfg.ShardConfig) {
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// Your code here.
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}
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// Return the current configuration
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func (sck *ShardCtrler) Query() *shardcfg.ShardConfig {
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// Your code here.
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return nil
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}
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