1 files changed, 88 insertions, 0 deletions
diff --git a/src/core/ext/filters/client_channel/connector.h b/src/core/ext/filters/client_channel/connector.h
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+++ b/src/core/ext/filters/client_channel/connector.h
@@ -0,0 +1,88 @@
+/*
+ *
+ * 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_FILTERS_CLIENT_CHANNEL_CONNECTOR_H
+#define GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_CONNECTOR_H
+
+#include "src/core/lib/channel/channel_stack.h"
+#include "src/core/lib/iomgr/resolve_address.h"
+#include "src/core/lib/transport/transport.h"
+
+typedef struct grpc_connector grpc_connector;
+typedef struct grpc_connector_vtable grpc_connector_vtable;
+
+struct grpc_connector {
+  const grpc_connector_vtable *vtable;
+};
+
+typedef struct {
+  /** set of pollsets interested in this connection */
+  grpc_pollset_set *interested_parties;
+  /** deadline for connection */
+  gpr_timespec deadline;
+  /** channel arguments (to be passed to transport) */
+  const grpc_channel_args *channel_args;
+} grpc_connect_in_args;
+
+typedef struct {
+  /** the connected transport */
+  grpc_transport *transport;
+
+  /** channel arguments (to be passed to the filters) */
+  grpc_channel_args *channel_args;
+} grpc_connect_out_args;
+
+struct grpc_connector_vtable {
+  void (*ref)(grpc_connector *connector);
+  void (*unref)(grpc_exec_ctx *exec_ctx, grpc_connector *connector);
+  /** Implementation of grpc_connector_shutdown */
+  void (*shutdown)(grpc_exec_ctx *exec_ctx, grpc_connector *connector,
+                   grpc_error *why);
+  /** Implementation of grpc_connector_connect */
+  void (*connect)(grpc_exec_ctx *exec_ctx, grpc_connector *connector,
+                  const grpc_connect_in_args *in_args,
+                  grpc_connect_out_args *out_args, grpc_closure *notify);
+};
+
+grpc_connector *grpc_connector_ref(grpc_connector *connector);
+void grpc_connector_unref(grpc_exec_ctx *exec_ctx, grpc_connector *connector);
+/** Connect using the connector: max one outstanding call at a time */
+void grpc_connector_connect(grpc_exec_ctx *exec_ctx, grpc_connector *connector,
+                            const grpc_connect_in_args *in_args,
+                            grpc_connect_out_args *out_args,
+                            grpc_closure *notify);
+/** Cancel any pending connection */
+void grpc_connector_shutdown(grpc_exec_ctx *exec_ctx, grpc_connector *connector,
+                             grpc_error *why);
+
+#endif /* GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_CONNECTOR_H */