From 3fb8f7360b033874978e517043c7eec59e295e42 Mon Sep 17 00:00:00 2001 From: David Garcia Quintas Date: Wed, 15 Jun 2016 22:53:08 -0700 Subject: gRPC LB policy --- src/core/ext/client_config/lb_policy.c | 5 +++-- src/core/ext/client_config/lb_policy.h | 13 +++++++++---- 2 files changed, 12 insertions(+), 6 deletions(-) (limited to 'src/core/ext/client_config') diff --git a/src/core/ext/client_config/lb_policy.c b/src/core/ext/client_config/lb_policy.c index 20535398d6..dc1612428e 100644 --- a/src/core/ext/client_config/lb_policy.c +++ b/src/core/ext/client_config/lb_policy.c @@ -60,8 +60,9 @@ static gpr_atm ref_mutate(grpc_lb_policy *c, gpr_atm delta, : gpr_atm_no_barrier_fetch_add(&c->ref_pair, delta); #ifdef GRPC_LB_POLICY_REFCOUNT_DEBUG gpr_log(file, line, GPR_LOG_SEVERITY_DEBUG, - "LB_POLICY: %p % 12s 0x%08x -> 0x%08x [%s]", c, purpose, old_val, - old_val + delta, reason); + "LB_POLICY: 0x%" PRIxPTR " %12s 0x%" PRIxPTR " -> 0x%" PRIxPTR + " [%s]", + (intptr_t)c, purpose, old_val, old_val + delta, reason); #endif return old_val; } diff --git a/src/core/ext/client_config/lb_policy.h b/src/core/ext/client_config/lb_policy.h index 56fa11198b..b07824ae1b 100644 --- a/src/core/ext/client_config/lb_policy.h +++ b/src/core/ext/client_config/lb_policy.h @@ -73,15 +73,17 @@ struct grpc_lb_policy_vtable { void (*ping_one)(grpc_exec_ctx *exec_ctx, grpc_lb_policy *policy, grpc_closure *closure); - /** try to enter a READY connectivity state */ + /** Try to enter a READY connectivity state */ void (*exit_idle)(grpc_exec_ctx *exec_ctx, grpc_lb_policy *policy); - /** check the current connectivity of the lb_policy */ + /** Check the current connectivity */ grpc_connectivity_state (*check_connectivity)(grpc_exec_ctx *exec_ctx, grpc_lb_policy *policy); /** call notify when the connectivity state of a channel changes from *state. - Updates *state with the new state of the policy */ + Updates *state with the new state of the policy. Calling with a NULL \a + state cancels the subscription. + */ void (*notify_on_state_change)(grpc_exec_ctx *exec_ctx, grpc_lb_policy *policy, grpc_connectivity_state *state, @@ -124,7 +126,7 @@ void grpc_lb_policy_init(grpc_lb_policy *policy, /** Given initial metadata in \a initial_metadata, find an appropriate target for this rpc, and 'return' it by calling \a on_complete after setting \a target. - Picking can be asynchronous. Any IO should be done under \a pollset. */ + Picking can be asynchronous. Any IO should be done under \a pollent. */ int grpc_lb_policy_pick(grpc_exec_ctx *exec_ctx, grpc_lb_policy *policy, grpc_polling_entity *pollent, grpc_metadata_batch *initial_metadata, @@ -146,8 +148,11 @@ void grpc_lb_policy_cancel_picks(grpc_exec_ctx *exec_ctx, uint32_t initial_metadata_flags_mask, uint32_t initial_metadata_flags_eq); +/** Try to enter a READY connectivity state */ void grpc_lb_policy_exit_idle(grpc_exec_ctx *exec_ctx, grpc_lb_policy *policy); +/* Call notify when the connectivity state of a channel changes from \a *state. + * Updates \a *state with the new state of the policy */ void grpc_lb_policy_notify_on_state_change(grpc_exec_ctx *exec_ctx, grpc_lb_policy *policy, grpc_connectivity_state *state, -- cgit v1.2.3