diff --git a/.idea/workspace.xml b/.idea/workspace.xml
index 2ef7882..2a22440 100644
--- a/.idea/workspace.xml
+++ b/.idea/workspace.xml
@@ -1,26 +1,9 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project version="4">
-  <component name="BranchesTreeState">
-    <expand>
-      <path>
-        <item name="ROOT" type="e8cecc67:BranchNodeDescriptor" />
-        <item name="LOCAL_ROOT" type="e8cecc67:BranchNodeDescriptor" />
-      </path>
-      <path>
-        <item name="ROOT" type="e8cecc67:BranchNodeDescriptor" />
-        <item name="REMOTE_ROOT" type="e8cecc67:BranchNodeDescriptor" />
-      </path>
-      <path>
-        <item name="ROOT" type="e8cecc67:BranchNodeDescriptor" />
-        <item name="REMOTE_ROOT" type="e8cecc67:BranchNodeDescriptor" />
-        <item name="GROUP_NODE:origin" type="e8cecc67:BranchNodeDescriptor" />
-      </path>
-    </expand>
-    <select />
-  </component>
   <component name="CMakeRunConfigurationManager" shouldGenerate="true" shouldDeleteObsolete="true">
     <generated>
-      <config projectName="General" targetName="General" />
+      <config projectName="generallib" targetName="generallib" />
+      <config projectName="generallib" targetName="General" />
     </generated>
   </component>
   <component name="CMakeSettings" AUTO_RELOAD="true">
@@ -30,9 +13,15 @@
   </component>
   <component name="ChangeListManager">
     <list default="true" id="0facce0d-c642-4d80-b2fb-daf5f3e68dff" name="Default Changelist" comment="">
+      <change beforePath="$PROJECT_DIR$/.idea/misc.xml" beforeDir="false" afterPath="$PROJECT_DIR$/.idea/misc.xml" afterDir="false" />
       <change beforePath="$PROJECT_DIR$/.idea/workspace.xml" beforeDir="false" afterPath="$PROJECT_DIR$/.idea/workspace.xml" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/cmake-build-debug/CMakeFiles/Makefile2" beforeDir="false" afterPath="$PROJECT_DIR$/cmake-build-debug/CMakeFiles/Makefile2" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/cmake-build-debug/CMakeFiles/progress.marks" beforeDir="false" afterPath="$PROJECT_DIR$/cmake-build-debug/CMakeFiles/progress.marks" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/cmake-build-debug/Makefile" beforeDir="false" afterPath="$PROJECT_DIR$/cmake-build-debug/Makefile" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/cmake-build-debug/cmake_install.cmake" beforeDir="false" afterPath="$PROJECT_DIR$/cmake-build-debug/cmake_install.cmake" afterDir="false" />
       <change beforePath="$PROJECT_DIR$/general/src/algorithm/ringbuffer.hpp" beforeDir="false" afterPath="$PROJECT_DIR$/general/src/algorithm/ringbuffer.hpp" afterDir="false" />
     </list>
+    <option name="EXCLUDED_CONVERTED_TO_IGNORED" value="true" />
     <option name="SHOW_DIALOG" value="false" />
     <option name="HIGHLIGHT_CONFLICTS" value="true" />
     <option name="HIGHLIGHT_NON_ACTIVE_CHANGELIST" value="false" />
@@ -53,6 +42,9 @@
     <option name="RECENT_GIT_ROOT_PATH" value="$PROJECT_DIR$" />
   </component>
   <component name="OCFindUsagesOptions" text="true" ivars="false" properties="true" derivedClasses="false" />
+  <component name="OCResolveContextSettings">
+    <option name="configuration" value="0-generallib" />
+  </component>
   <component name="ProjectId" id="1UhntPy4Y6cJ81thpskTMk9Asng" />
   <component name="ProjectLevelVcsManager" settingsEditedManually="true" />
   <component name="ProjectViewState">
@@ -75,22 +67,40 @@
     <property name="nodejs_interpreter_path.stuck_in_default_project" value="undefined stuck path" />
     <property name="nodejs_npm_path_reset_for_default_project" value="true" />
     <property name="nodejs_package_manager_path" value="npm" />
-    <property name="settings.editor.selected.configurable" value="CPPToolchains" />
+    <property name="settings.editor.selected.configurable" value="preferences.pluginManager" />
   </component>
   <component name="RecentsManager">
-    <key name="MoveFile.RECENT_KEYS">
-      <recent name="D:\project\c++\generallib\test\src\tcptest" />
-    </key>
     <key name="CopyFile.RECENT_KEYS">
       <recent name="D:\project\c++\generallib\src\encrypt" />
     </key>
   </component>
-  <component name="RunManager">
-    <configuration name="General" type="CMakeRunConfiguration" factoryName="Application" REDIRECT_INPUT="false" PASS_PARENT_ENVS_2="true" PROJECT_NAME="General" TARGET_NAME="General" CONFIG_NAME="Debug">
+  <component name="RunDashboard">
+    <option name="ruleStates">
+      <list>
+        <RuleState>
+          <option name="name" value="ConfigurationTypeDashboardGroupingRule" />
+        </RuleState>
+        <RuleState>
+          <option name="name" value="StatusDashboardGroupingRule" />
+        </RuleState>
+      </list>
+    </option>
+  </component>
+  <component name="RunManager" selected="CMake Application.General">
+    <configuration name="General" type="CMakeRunConfiguration" factoryName="Application" PASS_PARENT_ENVS_2="true" PROJECT_NAME="generallib" TARGET_NAME="General" CONFIG_NAME="Debug">
       <method v="2">
         <option name="com.jetbrains.cidr.execution.CidrBuildBeforeRunTaskProvider$BuildBeforeRunTask" enabled="true" />
       </method>
     </configuration>
+    <configuration name="generallib" type="CMakeRunConfiguration" factoryName="Application" PASS_PARENT_ENVS_2="true" PROJECT_NAME="generallib" TARGET_NAME="generallib" CONFIG_NAME="Debug">
+      <method v="2">
+        <option name="com.jetbrains.cidr.execution.CidrBuildBeforeRunTaskProvider$BuildBeforeRunTask" enabled="true" />
+      </method>
+    </configuration>
+    <list>
+      <item itemvalue="CMake Application.generallib" />
+      <item itemvalue="CMake Application.General" />
+    </list>
   </component>
   <component name="SvnConfiguration">
     <configuration />
@@ -144,26 +154,33 @@
       <workItem from="1588607501663" duration="599000" />
       <workItem from="1588685364145" duration="2436000" />
       <workItem from="1588731711427" duration="7486000" />
-      <workItem from="1588756178008" duration="3364000" />
-      <workItem from="1588988345219" duration="6326000" />
-      <workItem from="1589364212338" duration="2663000" />
+      <workItem from="1588756178008" duration="9322000" />
+      <workItem from="1588780515188" duration="1174000" />
+      <workItem from="1588781713713" duration="809000" />
+      <workItem from="1588924890957" duration="190000" />
+      <workItem from="1588937000080" duration="6169000" />
+      <workItem from="1589005894180" duration="10282000" />
+      <workItem from="1589079851627" duration="4745000" />
+      <workItem from="1589096335715" duration="9622000" />
+      <workItem from="1589465397742" duration="4077000" />
     </task>
     <servers />
   </component>
   <component name="TypeScriptGeneratedFilesManager">
-    <option name="version" value="2" />
+    <option name="version" value="1" />
   </component>
   <component name="Vcs.Log.Tabs.Properties">
     <option name="TAB_STATES">
       <map>
         <entry key="MAIN">
           <value>
-            <State />
+            <State>
+              <option name="COLUMN_ORDER" />
+            </State>
           </value>
         </entry>
       </map>
     </option>
-    <option name="oldMeFiltersMigrated" value="true" />
   </component>
   <component name="WindowStateProjectService">
     <state x="651" y="314" width="409" height="388" key="#Notifications" timestamp="1588741195489">
@@ -178,33 +195,9 @@
       <screen x="0" y="40" width="1536" height="824" />
     </state>
     <state x="549" y="206" key="FileChooserDialogImpl/0.40.1536.824@0.40.1536.824" timestamp="1588739069638" />
-    <state width="1493" height="210" key="GridCell.Tab.0.bottom" timestamp="1589037862487">
-      <screen x="0" y="40" width="1536" height="824" />
-    </state>
-    <state width="1493" height="210" key="GridCell.Tab.0.bottom/0.40.1536.824/-1694.-1040.2560.1040@0.40.1536.824" timestamp="1589037862487" />
-    <state width="1493" height="210" key="GridCell.Tab.0.bottom/0.40.1536.824@0.40.1536.824" timestamp="1588993827572" />
-    <state width="1493" height="210" key="GridCell.Tab.0.center" timestamp="1589037862487">
-      <screen x="0" y="40" width="1536" height="824" />
-    </state>
-    <state width="1493" height="210" key="GridCell.Tab.0.center/0.40.1536.824/-1694.-1040.2560.1040@0.40.1536.824" timestamp="1589037862487" />
-    <state width="1493" height="210" key="GridCell.Tab.0.center/0.40.1536.824@0.40.1536.824" timestamp="1588993827572" />
-    <state width="1493" height="210" key="GridCell.Tab.0.left" timestamp="1589037862487">
-      <screen x="0" y="40" width="1536" height="824" />
-    </state>
-    <state width="1493" height="210" key="GridCell.Tab.0.left/0.40.1536.824/-1694.-1040.2560.1040@0.40.1536.824" timestamp="1589037862487" />
-    <state width="1493" height="210" key="GridCell.Tab.0.left/0.40.1536.824@0.40.1536.824" timestamp="1588993827572" />
-    <state width="1493" height="210" key="GridCell.Tab.0.right" timestamp="1589037862487">
-      <screen x="0" y="40" width="1536" height="824" />
-    </state>
-    <state width="1493" height="210" key="GridCell.Tab.0.right/0.40.1536.824/-1694.-1040.2560.1040@0.40.1536.824" timestamp="1589037862487" />
-    <state width="1493" height="210" key="GridCell.Tab.0.right/0.40.1536.824@0.40.1536.824" timestamp="1588993827572" />
     <state x="270" y="96" key="SettingsEditor" timestamp="1588739395688">
       <screen x="0" y="40" width="1536" height="824" />
     </state>
     <state x="270" y="96" key="SettingsEditor/0.40.1536.824@0.40.1536.824" timestamp="1588739395688" />
-    <state x="431" y="185" width="672" height="678" key="search.everywhere.popup" timestamp="1589365807287">
-      <screen x="0" y="40" width="1536" height="824" />
-    </state>
-    <state x="431" y="185" width="672" height="678" key="search.everywhere.popup/0.40.1536.824@0.40.1536.824" timestamp="1589365807287" />
   </component>
 </project>
\ No newline at end of file
diff --git a/general/src/algorithm/ringbuffer.hpp b/general/src/algorithm/ringbuffer.hpp
index a40abd2..5df8b3a 100644
--- a/general/src/algorithm/ringbuffer.hpp
+++ b/general/src/algorithm/ringbuffer.hpp
@@ -35,7 +35,7 @@ public:
         {
             int copy_sz = min(count, this->ReadableCnt());
             memcpy(data, mHead, copy_sz *  sizeof(T));
-            mHead += copy_sz * sizeof(T);
+            mHead += copy_sz;
             return copy_sz;
         }
         else  // 头部大于尾部
@@ -53,7 +53,7 @@ public:
                 int copy_sz = mLen - (mHead - mBuffer);
                 memcpy(data, mHead, copy_sz * sizeof(T));
                 mHead =  mBuffer;
-                copy_sz += Read( (char*)data + copy_sz*sizeof(T), count - copy_sz);
+                copy_sz += Read( (T*)data + copy_sz*sizeof(T), count - copy_sz);
                 return copy_sz;
             }
         }
@@ -83,7 +83,7 @@ public:
         {
             memcpy(mTail, in, len*sizeof(T));  // 头部大于尾部
             mTail += len;
-            return count;
+            return len;
         }
     }
 private: