Changes for C to C++. Adding extern C to header files for compatibility.

Also converting to .cc

1 files changed, 104 insertions, 0 deletions

diff --git a/src/core/ext/transport/chttp2/client/insecure/channel_create.cc b/src/core/ext/transport/chttp2/client/insecure/channel_create.cc
new file mode 100644
index 0000000000..6410a6043d
--- /dev/null
+++ b/src/core/ext/transport/chttp2/client/insecure/channel_create.cc
@@ -0,0 +1,104 @@
+/*
+ *
+ * Copyright 2015 gRPC authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
+
+#include <grpc/grpc.h>
+
+#include <string.h>
+
+#include <grpc/support/alloc.h>
+#include <grpc/support/string_util.h>
+
+#include "src/core/ext/filters/client_channel/client_channel.h"
+#include "src/core/ext/filters/client_channel/resolver_registry.h"
+#include "src/core/ext/transport/chttp2/client/chttp2_connector.h"
+#include "src/core/lib/channel/channel_args.h"
+#include "src/core/lib/surface/api_trace.h"
+#include "src/core/lib/surface/channel.h"
+
+static void client_channel_factory_ref(
+    grpc_client_channel_factory *cc_factory) {}
+
+static void client_channel_factory_unref(
+    grpc_exec_ctx *exec_ctx, grpc_client_channel_factory *cc_factory) {}
+
+static grpc_subchannel *client_channel_factory_create_subchannel(
+    grpc_exec_ctx *exec_ctx, grpc_client_channel_factory *cc_factory,
+    const grpc_subchannel_args *args) {
+  grpc_connector *connector = grpc_chttp2_connector_create();
+  grpc_subchannel *s = grpc_subchannel_create(exec_ctx, connector, args);
+  grpc_connector_unref(exec_ctx, connector);
+  return s;
+}
+
+static grpc_channel *client_channel_factory_create_channel(
+    grpc_exec_ctx *exec_ctx, grpc_client_channel_factory *cc_factory,
+    const char *target, grpc_client_channel_type type,
+    const grpc_channel_args *args) {
+  if (target == NULL) {
+    gpr_log(GPR_ERROR, "cannot create channel with NULL target name");
+    return NULL;
+  }
+  // Add channel arg containing the server URI.
+  grpc_arg arg = grpc_channel_arg_string_create(
+      (char *)GRPC_ARG_SERVER_URI,
+      grpc_resolver_factory_add_default_prefix_if_needed(exec_ctx, target));
+  const char *to_remove[] = {GRPC_ARG_SERVER_URI};
+  grpc_channel_args *new_args =
+      grpc_channel_args_copy_and_add_and_remove(args, to_remove, 1, &arg, 1);
+  gpr_free(arg.value.string);
+  grpc_channel *channel = grpc_channel_create(exec_ctx, target, new_args,
+                                              GRPC_CLIENT_CHANNEL, NULL);
+  grpc_channel_args_destroy(exec_ctx, new_args);
+  return channel;
+}
+
+static const grpc_client_channel_factory_vtable client_channel_factory_vtable =
+    {client_channel_factory_ref, client_channel_factory_unref,
+     client_channel_factory_create_subchannel,
+     client_channel_factory_create_channel};
+
+static grpc_client_channel_factory client_channel_factory = {
+    &client_channel_factory_vtable};
+
+/* Create a client channel:
+   Asynchronously: - resolve target
+                   - connect to it (trying alternatives as presented)
+                   - perform handshakes */
+grpc_channel *grpc_insecure_channel_create(const char *target,
+                                           const grpc_channel_args *args,
+                                           void *reserved) {
+  grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
+  GRPC_API_TRACE(
+      "grpc_insecure_channel_create(target=%s, args=%p, reserved=%p)", 3,
+      (target, args, reserved));
+  GPR_ASSERT(reserved == NULL);
+  // Add channel arg containing the client channel factory.
+  grpc_arg arg =
+      grpc_client_channel_factory_create_channel_arg(&client_channel_factory);
+  grpc_channel_args *new_args = grpc_channel_args_copy_and_add(args, &arg, 1);
+  // Create channel.
+  grpc_channel *channel = client_channel_factory_create_channel(
+      &exec_ctx, &client_channel_factory, target,
+      GRPC_CLIENT_CHANNEL_TYPE_REGULAR, new_args);
+  // Clean up.
+  grpc_channel_args_destroy(&exec_ctx, new_args);
+  grpc_exec_ctx_finish(&exec_ctx);
+  return channel != NULL ? channel : grpc_lame_client_channel_create(
+                                         target, GRPC_STATUS_INTERNAL,
+                                         "Failed to create client channel");
+}