[perf] Reset compressor/decompressor instead of re-initialize (#1840)

Author: cTn-dev

lib/permessage-deflate.js

@@ -376,12 +376,11 @@ class PerMessageDeflate {
         this._inflate[kTotalLength]
       );
 
+      this._inflate[kTotalLength] = 0;
+      this._inflate[kBuffers] = [];
+
       if (fin && this.params[`${endpoint}_no_context_takeover`]) {
-        this._inflate.close();
-        this._inflate = null;
-      } else {
-        this._inflate[kTotalLength] = 0;
-        this._inflate[kBuffers] = [];
+        this._inflate.reset();
       }
 
       callback(null, data);
@@ -448,12 +447,11 @@ class PerMessageDeflate {
       //
       this._deflate[kCallback] = null;
 
+      this._deflate[kTotalLength] = 0;
+      this._deflate[kBuffers] = [];
+
       if (fin && this.params[`${endpoint}_no_context_takeover`]) {
-        this._deflate.close();
-        this._deflate = null;
-      } else {
-        this._deflate[kTotalLength] = 0;
-        this._deflate[kBuffers] = [];
+        this._deflate.reset();
       }
 
       callback(null, data);