server: Refactor to make the event loop owned by server object

1 files changed, 81 insertions, 0 deletions

diff --git a/Source/cmPipeConnection.cxx b/Source/cmPipeConnection.cxx
new file mode 100644
index 0000000..438719f
--- /dev/null
+++ b/Source/cmPipeConnection.cxx
@@ -0,0 +1,81 @@
+/* Distributed under the OSI-approved BSD 3-Clause License.  See accompanying
+   file Copyright.txt or https://cmake.org/licensing for details.  */
+#include "cmPipeConnection.h"
+
+#include "cmConfigure.h"
+#include "cmServer.h"
+
+cmPipeConnection::cmPipeConnection(const std::string& name,
+                                   cmConnectionBufferStrategy* bufferStrategy)
+  : cmConnection(bufferStrategy)
+  , PipeName(name)
+{
+}
+
+void cmPipeConnection::Connect(uv_stream_t* server)
+{
+  if (this->ClientPipe) {
+    // Accept and close all pipes but the first:
+    uv_pipe_t* rejectPipe = new uv_pipe_t();
+
+    uv_pipe_init(this->Server->GetLoop(), rejectPipe, 0);
+    uv_accept(server, reinterpret_cast<uv_stream_t*>(rejectPipe));
+    uv_close(reinterpret_cast<uv_handle_t*>(rejectPipe), &on_close_delete);
+    return;
+  }
+
+  this->ClientPipe = new uv_pipe_t();
+  uv_pipe_init(this->Server->GetLoop(), this->ClientPipe, 0);
+  this->ClientPipe->data = static_cast<cmConnection*>(this);
+
+  auto client = reinterpret_cast<uv_stream_t*>(this->ClientPipe);
+  if (uv_accept(server, client) != 0) {
+    uv_close(reinterpret_cast<uv_handle_t*>(client), &on_close_delete);
+    this->ClientPipe = CM_NULLPTR;
+    return;
+  }
+  this->ReadStream = client;
+  this->WriteStream = client;
+
+  uv_read_start(this->ReadStream, on_alloc_buffer, on_read);
+  Server->OnConnected(this);
+}
+
+bool cmPipeConnection::OnServeStart(std::string* errorMessage)
+{
+  this->ServerPipe = new uv_pipe_t();
+  uv_pipe_init(this->Server->GetLoop(), this->ServerPipe, 0);
+  this->ServerPipe->data = static_cast<cmConnection*>(this);
+
+  int r;
+  if ((r = uv_pipe_bind(this->ServerPipe, this->PipeName.c_str())) != 0) {
+    *errorMessage = std::string("Internal Error with ") + this->PipeName +
+      ": " + uv_err_name(r);
+    return false;
+  }
+  auto serverStream = reinterpret_cast<uv_stream_t*>(this->ServerPipe);
+  if ((r = uv_listen(serverStream, 1, on_new_connection)) != 0) {
+    *errorMessage = std::string("Internal Error listening on ") +
+      this->PipeName + ": " + uv_err_name(r);
+    return false;
+  }
+
+  return cmConnection::OnServeStart(errorMessage);
+}
+
+bool cmPipeConnection::OnServerShuttingDown()
+{
+  if (this->ClientPipe) {
+    uv_close(reinterpret_cast<uv_handle_t*>(this->ClientPipe),
+             &on_close_delete);
+    this->WriteStream->data = nullptr;
+  }
+  uv_close(reinterpret_cast<uv_handle_t*>(this->ServerPipe), &on_close_delete);
+
+  this->ClientPipe = nullptr;
+  this->ServerPipe = nullptr;
+  this->WriteStream = nullptr;
+  this->ReadStream = nullptr;
+
+  return cmConnection::OnServerShuttingDown();
+}