Merge github.com:grpc/grpc into footprints-on-the-sands-of-time

Conflicts:
	src/core/channel/client_setup.c
	src/core/surface/init.c

1 files changed, 79 insertions, 0 deletions

diff --git a/src/core/client_config/lb_policy.c b/src/core/client_config/lb_policy.c
new file mode 100644
index 0000000000..6d1c788742
--- /dev/null
+++ b/src/core/client_config/lb_policy.c
@@ -0,0 +1,79 @@
+/*
+ *
+ * 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.
+ *
+ */
+
+#include "src/core/client_config/lb_policy.h"
+
+void grpc_lb_policy_init(grpc_lb_policy *policy,
+                         const grpc_lb_policy_vtable *vtable) {
+  policy->vtable = vtable;
+  gpr_ref_init(&policy->refs, 1);
+}
+
+#ifdef GRPC_LB_POLICY_REFCOUNT_DEBUG
+void grpc_lb_policy_ref(grpc_lb_policy *policy, const char *file, int line,
+                        const char *reason) {
+  gpr_log(file, line, GPR_LOG_SEVERITY_DEBUG, "LB_POLICY:%p   ref %d -> %d %s",
+          policy, (int)policy->refs.count, (int)policy->refs.count + 1, reason);
+#else
+void grpc_lb_policy_ref(grpc_lb_policy *policy) {
+#endif
+  gpr_ref(&policy->refs);
+}
+
+#ifdef GRPC_LB_POLICY_REFCOUNT_DEBUG
+void grpc_lb_policy_unref(grpc_lb_policy *policy, const char *file, int line,
+                          const char *reason) {
+  gpr_log(file, line, GPR_LOG_SEVERITY_DEBUG, "LB_POLICY:%p unref %d -> %d %s",
+          policy, (int)policy->refs.count, (int)policy->refs.count - 1, reason);
+#else
+void grpc_lb_policy_unref(grpc_lb_policy *policy) {
+#endif
+  if (gpr_unref(&policy->refs)) {
+    policy->vtable->destroy(policy);
+  }
+}
+
+void grpc_lb_policy_shutdown(grpc_lb_policy *policy) {
+  policy->vtable->shutdown(policy);
+}
+
+void grpc_lb_policy_pick(grpc_lb_policy *policy, grpc_pollset *pollset,
+                         grpc_metadata_batch *initial_metadata,
+                         grpc_subchannel **target,
+                         grpc_iomgr_closure *on_complete) {
+  policy->vtable->pick(policy, pollset, initial_metadata, target, on_complete);
+}
+
+void grpc_lb_policy_broadcast(grpc_lb_policy *policy, grpc_transport_op *op) {
+  policy->vtable->broadcast(policy, op);
+}