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/*
*
* 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);
grpc_pollset_set_init(&policy->interested_parties);
}
#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,
grpc_closure_list *closure_list, 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_exec_ctx *exec_ctx, grpc_lb_policy *policy) {
#endif
if (gpr_unref(&policy->refs)) {
policy->vtable->destroy(exec_ctx, policy);
}
}
void grpc_lb_policy_shutdown(grpc_exec_ctx *exec_ctx, grpc_lb_policy *policy) {
policy->vtable->shutdown(exec_ctx, policy);
}
int grpc_lb_policy_pick(grpc_exec_ctx *exec_ctx, grpc_lb_policy *policy,
grpc_pollset *pollset,
grpc_metadata_batch *initial_metadata,
grpc_connected_subchannel **target,
grpc_closure *on_complete) {
return policy->vtable->pick(exec_ctx, policy, pollset, initial_metadata,
target, on_complete);
}
void grpc_lb_policy_cancel_pick(grpc_exec_ctx *exec_ctx, grpc_lb_policy *policy,
grpc_connected_subchannel **target) {
policy->vtable->cancel_pick(exec_ctx, policy, target);
}
void grpc_lb_policy_broadcast(grpc_exec_ctx *exec_ctx, grpc_lb_policy *policy,
grpc_transport_op *op) {
policy->vtable->broadcast(exec_ctx, policy, op);
}
void grpc_lb_policy_exit_idle(grpc_exec_ctx *exec_ctx, grpc_lb_policy *policy) {
policy->vtable->exit_idle(exec_ctx, policy);
}
void grpc_lb_policy_notify_on_state_change(grpc_exec_ctx *exec_ctx,
grpc_lb_policy *policy,
grpc_connectivity_state *state,
grpc_closure *closure) {
policy->vtable->notify_on_state_change(exec_ctx, policy, state, closure);
}
grpc_connectivity_state grpc_lb_policy_check_connectivity(
grpc_exec_ctx *exec_ctx, grpc_lb_policy *policy) {
return policy->vtable->check_connectivity(exec_ctx, policy);
}
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