HTTP server networking side, also, fix the releasing of channels in driver

luprex/core/cpp/http.hpp

@@ -269,6 +269,10 @@ public:
     //
     HttpParser();
 
+    // Get the parsed status.
+    //
+    int status() const { return status_; }
+
     // Store the parsed fields into a lua table.
     //
     void store(LuaStack &LS, LuaSlot tab) const;
@@ -318,17 +322,19 @@ public:
 
 using HttpParserVec = eng::vector<HttpParser>;
 
-// This class associates an HTTP request to an actual communication
-// channel that is executing that request.
-
-class HttpClientChannel {
+// This class is used by LpxServer to store the
+// incoming and outgoing http channels.
+//
+class HttpChannel {
 public:
     SharedChannel channel_;
     int64_t parsed_bytes_;
 
-    HttpClientChannel() : parsed_bytes_(0) {}
+    bool marked_for_deletion() const { return channel_ == nullptr; }
+    HttpChannel() : parsed_bytes_(0) {}
 };
 
-using HttpClientChannelMap = eng::map<int64_t, HttpClientChannel>;
+using HttpChannelMap = eng::map<int64_t, HttpChannel>;
+using HttpChannelVec = eng::vector<HttpChannel>;
 
 #endif // HTTP_HPP