docs: add how to use kvctl

Author: ZYunfeii

README.md

@@ -5,27 +5,52 @@
 Developed command line tool **kvctl**.
 value type:string
 ```shell
-yunfei@ubuntu:~/MiniKV/build$ ./kvctl --key qjx --operate set --value hello
-yunfei@ubuntu:~/MiniKV/build$ ./kvctl --key qjx --operate get
-
-hello
+yunfei@ubuntu:~/MiniKV/build$ ./kvctl --key qjx --operate set --value world --ip 43.143.229.22
++--------+
+| Status |
++--------+
+| OK     |
++--------+
+yunfei@ubuntu:~/MiniKV/build$ ./kvctl --key qjx --operate get --ip 43.143.229.22
++-------+
+| Value |
++-------+
+| world |
++-------+
 ```
 
 value type:list
 ```shell
-yunfei@ubuntu:~/MiniKV/build$ ./kvctl --key zyf --operate set --value hello --encoding list
-yunfei@ubuntu:~/MiniKV/build$ ./kvctl --key zyf --operate set --value world --encoding list
-
-yunfei@ubuntu:~/MiniKV/build$ ./kvctl --key zyf --operate get
-
-world hello 
+yunfei@ubuntu:~/MiniKV/build$ ./kvctl --key zyf --operate set --value hello --encoding list --ip 43.143.229.22
++--------+
+| Status |
++--------+
+| OK     |
++--------+
+yunfei@ubuntu:~/MiniKV/build$ ./kvctl --key zyf --operate set --value world --encoding list --ip 43.143.229.22
++--------+
+| Status |
++--------+
+| OK     |
++--------+
+yunfei@ubuntu:~/MiniKV/build$ ./kvctl --key zyf --operate get --ip 43.143.229.22
++-------+
+| Value |
++-------+
+| hello |
+| world |
++-------+
 ```
 search key using regex:
 ```shell
-./kvctl --keyRex .* --operate findkey
-
-zyf
-qjx
+yunfei@ubuntu:~/MiniKV/build$ ./kvctl --keyRex .* --operate findkey --ip 43.143.229.22
++--------+
+| Key    |
++--------+
+| zyf    |
+| yunfei |
+| qjx    |
++--------+
 ```
 
 

kvctl/config.flags

@@ -1,3 +1,5 @@
 --ip=43.143.229.22
---key=qjx
---operate=get
+--key=zyf
+--operate=set
+--value=hello
+--encoding=list

kvctl/draw_table.h

@@ -31,13 +31,16 @@ void drawDatas(std::vector<int>& max, std::vector<std::vector<std::string>>& Str
 	drawLine(max, columns);
 }
 
-void maxLenForEveryCol(std::vector<std::vector<std::string>>& datas, std::vector<int>& maxLen) {
+void maxLenForEveryCol(std::vector<std::vector<std::string>>& datas, std::vector<int>& maxLen, std::vector<std::string>& head) {
     if (datas.empty()) return;
     maxLen.resize(datas[0].size());
     for (int i = 0; i < datas[0].size(); ++i) {
         for (int j = 0; j < datas.size(); ++j) {
             if (datas[j][i].size() > maxLen[i]) {
                 maxLen[i] = datas[j][i].size();
+            }
+			if (head[i].size() > maxLen[i]) {
+                maxLen[i] = head[i].size();
             }
         }
 

kvctl/main.cc

@@ -53,8 +53,8 @@ void drawStatus(int ans) {
     std::vector<std::vector<std::string>> data;
     data.push_back({enStatus[ans]});
     std::vector<int> max;
-    maxLenForEveryCol(data, max);
     std::vector<std::string> head = {"Status"};
+    maxLenForEveryCol(data, max, head);
     drawDatas(max, data, head, 1, 1);
 }
 
@@ -64,8 +64,8 @@ void drawMultiEleOneCol(std::vector<std::string>& ans, std::string headName) {
         data.push_back({ans[i]});
     }
     std::vector<int> max;
-    maxLenForEveryCol(data, max);
     std::vector<std::string> head = {headName};
+    maxLenForEveryCol(data, max, head);
     drawDatas(max, data, head, 1, ans.size());
 }
 

server/hash.h

@@ -77,7 +77,7 @@ class HashTable {
                     std::list<kvString>* p = (std::list<kvString>*)(i->get()->data.get());
                     char* valBuf = new char[val.size()];
                     memcpy(valBuf, val.data(), val.size());
-                    p->push_front(kvString{(uint32_t)val.size(), std::shared_ptr<char[]>(valBuf)});
+                    p->push_back(kvString{(uint32_t)val.size(), std::shared_ptr<char[]>(valBuf)});
                 } else if (i->get()->encoding == MiniKV_STRING) {
                     insertWithEncoding(i->get(), key, val, encoding);
                 }