server-mode: Introduce cmServerConnection

Use it to split pipe and stdin/out handling out of cmServer itself.

The server will shut down when it looses its connection to the client.
This has the nice property that a crashing client will cause the server
to terminate as the OS will close the connection on behave of the client.

1 files changed, 9 insertions, 6 deletions

diff --git a/Source/cmServer.h b/Source/cmServer.h
index 38a11bb..dde5333 100644
--- a/Source/cmServer.h
+++ b/Source/cmServer.h
@@ -24,6 +24,7 @@
 #include <string>
 #include <vector>
 
+class cmServerConnection;
 class cmServerProtocol;
 class cmServerRequest;
 class cmServerResponse;
@@ -33,18 +34,18 @@ class cmServer
 public:
   class DebugInfo;
 
-  cmServer(bool supportExperimental);
+  cmServer(cmServerConnection* conn, bool supportExperimental);
   ~cmServer();
 
-  bool Serve();
-
-  // for callbacks:
-  void PopOne();
-  void handleData(std::string const& data);
+  bool Serve(std::string* errorMessage);
 
 private:
   void RegisterProtocol(cmServerProtocol* protocol);
 
+  // Callbacks from cmServerConnection:
+  void PopOne();
+  void QueueRequest(const std::string& request);
+
   static void reportProgress(const char* msg, float progress, void* data);
   static void reportMessage(const char* msg, const char* title, bool& cancel,
                             void* data);
@@ -69,6 +70,7 @@ private:
   static cmServerProtocol* FindMatchingProtocol(
     const std::vector<cmServerProtocol*>& protocols, int major, int minor);
 
+  cmServerConnection* Connection = nullptr;
   const bool SupportExperimental;
 
   cmServerProtocol* Protocol = nullptr;
@@ -94,4 +96,5 @@ private:
   mutable bool Writing = false;
 
   friend class cmServerRequest;
+  friend class cmServerConnection;
 };