Reorganize ext tree

- filters live under filters
- lb_policy, resolver implementations (being part of client_channel) live under client_channel

1 files changed, 92 insertions, 0 deletions

diff --git a/src/core/ext/filters/client_channel/client_channel_factory.h b/src/core/ext/filters/client_channel/client_channel_factory.h
new file mode 100644
index 0000000000..0bbb92110e
--- /dev/null
+++ b/src/core/ext/filters/client_channel/client_channel_factory.h
@@ -0,0 +1,92 @@
+/*
+ *
+ * Copyright 2015, Google Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+#ifndef GRPC_CORE_EXT_CLIENT_CHANNEL_CLIENT_CHANNEL_FACTORY_H
+#define GRPC_CORE_EXT_CLIENT_CHANNEL_CLIENT_CHANNEL_FACTORY_H
+
+#include <grpc/impl/codegen/grpc_types.h>
+
+#include "src/core/ext/filters/client_channel/subchannel.h"
+#include "src/core/lib/channel/channel_stack.h"
+
+// Channel arg key for client channel factory.
+#define GRPC_ARG_CLIENT_CHANNEL_FACTORY "grpc.client_channel_factory"
+
+typedef struct grpc_client_channel_factory grpc_client_channel_factory;
+typedef struct grpc_client_channel_factory_vtable
+    grpc_client_channel_factory_vtable;
+
+typedef enum {
+  GRPC_CLIENT_CHANNEL_TYPE_REGULAR, /** for the user-level regular calls */
+  GRPC_CLIENT_CHANNEL_TYPE_LOAD_BALANCING, /** for communication with a load
+                                              balancing service */
+} grpc_client_channel_type;
+
+/** Constructor for new configured channels.
+    Creating decorators around this type is encouraged to adapt behavior. */
+struct grpc_client_channel_factory {
+  const grpc_client_channel_factory_vtable *vtable;
+};
+
+struct grpc_client_channel_factory_vtable {
+  void (*ref)(grpc_client_channel_factory *factory);
+  void (*unref)(grpc_exec_ctx *exec_ctx, grpc_client_channel_factory *factory);
+  grpc_subchannel *(*create_subchannel)(grpc_exec_ctx *exec_ctx,
+                                        grpc_client_channel_factory *factory,
+                                        const grpc_subchannel_args *args);
+  grpc_channel *(*create_client_channel)(grpc_exec_ctx *exec_ctx,
+                                         grpc_client_channel_factory *factory,
+                                         const char *target,
+                                         grpc_client_channel_type type,
+                                         const grpc_channel_args *args);
+};
+
+void grpc_client_channel_factory_ref(grpc_client_channel_factory *factory);
+void grpc_client_channel_factory_unref(grpc_exec_ctx *exec_ctx,
+                                       grpc_client_channel_factory *factory);
+
+/** Create a new grpc_subchannel */
+grpc_subchannel *grpc_client_channel_factory_create_subchannel(
+    grpc_exec_ctx *exec_ctx, grpc_client_channel_factory *factory,
+    const grpc_subchannel_args *args);
+
+/** Create a new grpc_channel */
+grpc_channel *grpc_client_channel_factory_create_channel(
+    grpc_exec_ctx *exec_ctx, grpc_client_channel_factory *factory,
+    const char *target, grpc_client_channel_type type,
+    const grpc_channel_args *args);
+
+grpc_arg grpc_client_channel_factory_create_channel_arg(
+    grpc_client_channel_factory *factory);
+
+#endif /* GRPC_CORE_EXT_CLIENT_CHANNEL_CLIENT_CHANNEL_FACTORY_H */