From f58e61bd015a593965d346a2ae08be2484a79de6 Mon Sep 17 00:00:00 2001
From: super-Pan66 <1719739132@qq.com>
Date: Wed, 22 Nov 2023 20:24:21 +0800
Subject: [PATCH] fix bug

---
 src/cmd_kv.cc            | 98 ++++++++++++++++++++++++++++++++++++++++
 src/cmd_table_manager.cc |  8 ++++
 2 files changed, 106 insertions(+)

diff --git a/src/cmd_kv.cc b/src/cmd_kv.cc
index 9a626d157..a649baf71 100644
--- a/src/cmd_kv.cc
+++ b/src/cmd_kv.cc
@@ -6,8 +6,10 @@
  */
 
 #include "cmd_kv.h"
+#include "pstd_string.h"
 #include "store.h"
 
+
 namespace pikiwidb {
 
 GetCmd::GetCmd(const std::string& name, int16_t arity)
@@ -48,4 +50,100 @@ void SetCmd::DoCmd(PClient* client) {
   client->SetRes(CmdRes::kOk);
 }
 
+StrlenCmd::StrlenCmd(const std::string& name, int16_t arity)
+    : BaseCmd(name, arity, CmdFlagsReadonly, AclCategoryRead | AclCategoryString) {}
+
+bool StrlenCmd::DoInitial(PClient* client) {
+  client->SetKey(client->argv_[1]);
+  return true;
+}
+
+void StrlenCmd::DoCmd(PClient* client) {
+  PObject* value;
+  PError err = PSTORE.GetValueByType(client->Key(), value, PType_string);
+
+  switch (err){
+  case PError_ok:
+  {
+    auto str = GetDecodedString(value);
+    size_t len = str->size();
+    client->AppendInteger(static_cast<int64_t>(len));
+    break;
+  }
+  case PError_notExist:
+  {
+    client->AppendInteger(0);
+    break;
+  }
+  default:
+  {
+    client->SetRes(CmdRes::kErrOther, "error other");
+    break;
+  }
+  }
+}
+
+SetexCmd::SetexCmd(const std::string& name, int16_t arity)
+    : BaseCmd(name, arity, CmdFlagsWrite, AclCategoryWrite | AclCategoryString){}
+
+bool SetexCmd::DoInitial(PClient* client) {
+  client->SetKey(client->argv_[1]);
+  int64_t sec = 0;
+  if (pstd::String2int(client->argv_[2], &sec) == 0) {
+    client->SetRes(CmdRes::kInvalidInt);
+    return false;
+  }
+  return true;
+}
+
+void SetexCmd::DoCmd(PClient* client) {
+  PSTORE.SetValue(client->argv_[1], PObject::CreateString(client->argv_[3]));
+  int64_t sec = 0;
+  pstd::String2int(client->argv_[2], &sec);
+  PSTORE.SetExpire(client->argv_[1], ::Now() + sec * 1000);
+  client->SetRes(CmdRes::kOk);
+}
+
+PsetexCmd::PsetexCmd(const std::string& name, int16_t arity)
+    : BaseCmd(name, arity, CmdFlagsWrite, AclCategoryWrite | AclCategoryString){}
+
+bool PsetexCmd::DoInitial(PClient* client) {
+  client->SetKey(client->argv_[1]);
+  int64_t msec = 0;
+  if (pstd::String2int(client->argv_[2], &msec) == 0) {
+    client->SetRes(CmdRes::kInvalidInt);
+    return false;
+  }
+  return true;
+}
+
+void PsetexCmd::DoCmd(PClient* client) {
+  PSTORE.SetValue(client->argv_[1], PObject::CreateString(client->argv_[3]));
+  int64_t msec = 0;
+  pstd::String2int(client->argv_[2], &msec);
+  PSTORE.SetExpire(client->argv_[1], ::Now() + msec);
+  client->SetRes(CmdRes::kOk);
+}
+
+SetnxCmd::SetnxCmd(const std::string& name, int16_t arity)
+    : BaseCmd(name, arity, CmdFlagsWrite, AclCategoryWrite | AclCategoryString){}
+
+bool SetnxCmd::DoInitial(PClient* client) {
+  client->SetKey(client->argv_[1]);
+  return true;
+}
+
+void SetnxCmd::DoCmd(PClient* client) {
+  int iSuccess = 1;
+  PObject* value;
+  PError err = PSTORE.GetValue(client->argv_[1], value);
+  if (err == PError_notExist) {
+    PSTORE.ClearExpire(client->argv_[1]);  // clear key's old ttl
+    PSTORE.SetValue(client->argv_[1], PObject::CreateString(client->argv_[2]));
+    client->AppendInteger(iSuccess);
+  }else{
+    client->AppendInteger(!iSuccess);
+  }
+}
+
 }  // namespace pikiwidb
\ No newline at end of file
diff --git a/src/cmd_table_manager.cc b/src/cmd_table_manager.cc
index 36f4e845e..53015217e 100644
--- a/src/cmd_table_manager.cc
+++ b/src/cmd_table_manager.cc
@@ -32,6 +32,14 @@ void CmdTableManager::InitCmdTable() {
   cmds_->insert(std::make_pair(kCmdNameGet, std::move(getPtr)));
   std::unique_ptr<BaseCmd> setPtr = std::make_unique<SetCmd>(kCmdNameSet, -3);
   cmds_->insert(std::make_pair(kCmdNameSet, std::move(setPtr)));
+  std::unique_ptr<BaseCmd> strlenPtr = std::make_unique<StrlenCmd>(kCmdNameStrlen, 2);
+  cmds_->insert(std::make_pair(kCmdNameStrlen, std::move(strlenPtr)));
+  std::unique_ptr<BaseCmd> setexPtr = std::make_unique<SetexCmd>(kCmdNameSetex, 4);
+  cmds_->insert(std::make_pair(kCmdNameSetex, std::move(setexPtr)));
+  std::unique_ptr<BaseCmd> psetexPtr = std::make_unique<PsetexCmd>(kCmdNamePsetex, 4);
+  cmds_->insert(std::make_pair(kCmdNamePsetex, std::move(psetexPtr)));
+  std::unique_ptr<BaseCmd> setnxPtr = std::make_unique<SetnxCmd>(kCmdNameSetnx, 3);
+  cmds_->insert(std::make_pair(kCmdNameSetnx, std::move(setnxPtr)));
 }
 
 std::pair<BaseCmd*, CmdRes::CmdRet> CmdTableManager::GetCommand(const std::string& cmdName, PClient* client) {