64 lines
1.6 KiB
Go
64 lines
1.6 KiB
Go
package kvsrv
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import "6.5840/labrpc"
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import "crypto/rand"
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import "math/big"
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type Clerk struct {
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server *labrpc.ClientEnd
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// You will have to modify this struct.
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}
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func nrand() int64 {
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max := big.NewInt(int64(1) << 62)
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bigx, _ := rand.Int(rand.Reader, max)
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x := bigx.Int64()
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return x
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}
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func MakeClerk(server *labrpc.ClientEnd) *Clerk {
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ck := new(Clerk)
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ck.server = server
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// You'll have to add code here.
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return ck
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}
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// fetch the current value for a key.
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// returns "" if the key does not exist.
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// keeps trying forever in the face of all other errors.
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//
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// you can send an RPC with code like this:
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// ok := ck.server.Call("KVServer.Get", &args, &reply)
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//
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// the types of args and reply (including whether they are pointers)
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// must match the declared types of the RPC handler function's
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// arguments. and reply must be passed as a pointer.
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func (ck *Clerk) Get(key string) string {
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// You will have to modify this function.
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return ""
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}
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// shared by Put and Append.
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//
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// you can send an RPC with code like this:
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// ok := ck.server.Call("KVServer."+op, &args, &reply)
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//
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// the types of args and reply (including whether they are pointers)
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// must match the declared types of the RPC handler function's
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// arguments. and reply must be passed as a pointer.
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func (ck *Clerk) PutAppend(key string, value string, op string) string {
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// You will have to modify this function.
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return ""
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}
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func (ck *Clerk) Put(key string, value string) {
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ck.PutAppend(key, value, "Put")
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}
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// Append value to key's value and return that value
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func (ck *Clerk) Append(key string, value string) string {
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return ck.PutAppend(key, value, "Append")
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}
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