diff options
author | 2016-11-30 13:41:53 -0800 | |
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committer | 2016-11-30 13:41:53 -0800 | |
commit | 36b3135929cf1561d35039fc9e04e038f5351ed7 (patch) | |
tree | b20b4f6ab4043fae9a170adb711b488be0bd1a59 /src/core/ext | |
parent | 0f97958b64a792e551aa3bde84bb8f53b04de3b4 (diff) | |
parent | 369ddc524a6ca55afb8e8bd6743ed5624e1a94ce (diff) |
Merge branch 'slice_interning' into metadata_filter
Diffstat (limited to 'src/core/ext')
-rw-r--r-- | src/core/ext/client_channel/subchannel.c | 138 | ||||
-rw-r--r-- | src/core/ext/lb_policy/grpclb/grpclb.c | 17 | ||||
-rw-r--r-- | src/core/ext/transport/chttp2/transport/chttp2_transport.c | 19 |
3 files changed, 112 insertions, 62 deletions
diff --git a/src/core/ext/client_channel/subchannel.c b/src/core/ext/client_channel/subchannel.c index 063b79cece..d38f7985a5 100644 --- a/src/core/ext/client_channel/subchannel.c +++ b/src/core/ext/client_channel/subchannel.c @@ -120,9 +120,9 @@ struct grpc_subchannel { gpr_mu mu; /** have we seen a disconnection? */ - int disconnected; + bool disconnected; /** are we connecting */ - int connecting; + bool connecting; /** connectivity state tracking */ grpc_connectivity_state_tracker state_tracker; @@ -133,7 +133,9 @@ struct grpc_subchannel { /** backoff state */ gpr_backoff backoff_state; /** do we have an active alarm? */ - int have_alarm; + bool have_alarm; + /** have we started the backoff loop */ + bool backoff_begun; /** our alarm */ grpc_timer alarm; }; @@ -265,7 +267,7 @@ static void disconnect(grpc_exec_ctx *exec_ctx, grpc_subchannel *c) { grpc_subchannel_index_unregister(exec_ctx, c->key, c); gpr_mu_lock(&c->mu); GPR_ASSERT(!c->disconnected); - c->disconnected = 1; + c->disconnected = true; grpc_connector_shutdown(exec_ctx, c->connector); con = GET_CONNECTED_SUBCHANNEL(c, no_barrier); if (con != NULL) { @@ -371,7 +373,8 @@ grpc_subchannel *grpc_subchannel_create(grpc_exec_ctx *exec_ctx, return grpc_subchannel_index_register(exec_ctx, key, c); } -static void continue_connect(grpc_exec_ctx *exec_ctx, grpc_subchannel *c) { +static void continue_connect_locked(grpc_exec_ctx *exec_ctx, + grpc_subchannel *c) { grpc_connect_in_args args; args.interested_parties = c->pollset_set; @@ -387,12 +390,6 @@ static void continue_connect(grpc_exec_ctx *exec_ctx, grpc_subchannel *c) { &c->connected); } -static void start_connect(grpc_exec_ctx *exec_ctx, grpc_subchannel *c) { - c->next_attempt = - gpr_backoff_begin(&c->backoff_state, gpr_now(GPR_CLOCK_MONOTONIC)); - continue_connect(exec_ctx, c); -} - grpc_connectivity_state grpc_subchannel_check_connectivity(grpc_subchannel *c, grpc_error **error) { grpc_connectivity_state state; @@ -419,6 +416,73 @@ static void on_external_state_watcher_done(grpc_exec_ctx *exec_ctx, void *arg, follow_up->cb(exec_ctx, follow_up->cb_arg, error); } +static void on_alarm(grpc_exec_ctx *exec_ctx, void *arg, grpc_error *error) { + grpc_subchannel *c = arg; + gpr_mu_lock(&c->mu); + c->have_alarm = false; + if (c->disconnected) { + error = GRPC_ERROR_CREATE_REFERENCING("Disconnected", &error, 1); + } else { + GRPC_ERROR_REF(error); + } + if (error == GRPC_ERROR_NONE) { + gpr_log(GPR_INFO, "Failed to connect to channel, retrying"); + c->next_attempt = + gpr_backoff_step(&c->backoff_state, gpr_now(GPR_CLOCK_MONOTONIC)); + continue_connect_locked(exec_ctx, c); + gpr_mu_unlock(&c->mu); + } else { + gpr_mu_unlock(&c->mu); + GRPC_SUBCHANNEL_WEAK_UNREF(exec_ctx, c, "connecting"); + } + GRPC_ERROR_UNREF(error); +} + +static void maybe_start_connecting_locked(grpc_exec_ctx *exec_ctx, + grpc_subchannel *c) { + if (c->disconnected) { + /* Don't try to connect if we're already disconnected */ + return; + } + + if (c->connecting) { + /* Already connecting: don't restart */ + return; + } + + if (GET_CONNECTED_SUBCHANNEL(c, no_barrier) != NULL) { + /* Already connected: don't restart */ + return; + } + + if (!grpc_connectivity_state_has_watchers(&c->state_tracker)) { + /* Nobody is interested in connecting: so don't just yet */ + return; + } + + c->connecting = true; + GRPC_SUBCHANNEL_WEAK_REF(c, "connecting"); + + gpr_timespec now = gpr_now(GPR_CLOCK_MONOTONIC); + if (!c->backoff_begun) { + c->backoff_begun = true; + c->next_attempt = gpr_backoff_begin(&c->backoff_state, now); + continue_connect_locked(exec_ctx, c); + } else { + GPR_ASSERT(!c->have_alarm); + c->have_alarm = true; + gpr_timespec time_til_next = gpr_time_sub(c->next_attempt, now); + if (gpr_time_cmp(time_til_next, gpr_time_0(time_til_next.clock_type)) <= + 0) { + gpr_log(GPR_INFO, "Retry immediately"); + } else { + gpr_log(GPR_INFO, "Retry in %" PRId64 ".%09d seconds", + time_til_next.tv_sec, time_til_next.tv_nsec); + } + grpc_timer_init(exec_ctx, &c->alarm, c->next_attempt, on_alarm, c, now); + } +} + void grpc_subchannel_notify_on_state_change( grpc_exec_ctx *exec_ctx, grpc_subchannel *c, grpc_pollset_set *interested_parties, grpc_connectivity_state *state, @@ -450,13 +514,9 @@ void grpc_subchannel_notify_on_state_change( w->next = &c->root_external_state_watcher; w->prev = w->next->prev; w->next->prev = w->prev->next = w; - if (grpc_connectivity_state_notify_on_state_change( - exec_ctx, &c->state_tracker, state, &w->closure)) { - c->connecting = 1; - /* released by connection */ - GRPC_SUBCHANNEL_WEAK_REF(c, "connecting"); - start_connect(exec_ctx, c); - } + grpc_connectivity_state_notify_on_state_change(exec_ctx, &c->state_tracker, + state, &w->closure); + maybe_start_connecting_locked(exec_ctx, c); gpr_mu_unlock(&c->mu); } } @@ -576,7 +636,6 @@ static void publish_transport_locked(grpc_exec_ctx *exec_ctx, Re-evaluate if we really need this. */ gpr_atm_full_barrier(); GPR_ASSERT(gpr_atm_rel_cas(&c->connected_subchannel, 0, (gpr_atm)con)); - c->connecting = 0; /* setup subchannel watching connected subchannel for changes; subchannel ref @@ -593,28 +652,6 @@ static void publish_transport_locked(grpc_exec_ctx *exec_ctx, GRPC_ERROR_NONE, "connected"); } -static void on_alarm(grpc_exec_ctx *exec_ctx, void *arg, grpc_error *error) { - grpc_subchannel *c = arg; - gpr_mu_lock(&c->mu); - c->have_alarm = 0; - if (c->disconnected) { - error = GRPC_ERROR_CREATE_REFERENCING("Disconnected", &error, 1); - } else { - GRPC_ERROR_REF(error); - } - if (error == GRPC_ERROR_NONE) { - gpr_log(GPR_INFO, "Failed to connect to channel, retrying"); - c->next_attempt = - gpr_backoff_step(&c->backoff_state, gpr_now(GPR_CLOCK_MONOTONIC)); - continue_connect(exec_ctx, c); - gpr_mu_unlock(&c->mu); - } else { - gpr_mu_unlock(&c->mu); - GRPC_SUBCHANNEL_WEAK_UNREF(exec_ctx, c, "connecting"); - } - GRPC_ERROR_UNREF(error); -} - static void subchannel_connected(grpc_exec_ctx *exec_ctx, void *arg, grpc_error *error) { grpc_subchannel *c = arg; @@ -622,35 +659,28 @@ static void subchannel_connected(grpc_exec_ctx *exec_ctx, void *arg, GRPC_SUBCHANNEL_WEAK_REF(c, "connected"); gpr_mu_lock(&c->mu); + c->connecting = false; if (c->connecting_result.transport != NULL) { publish_transport_locked(exec_ctx, c); } else if (c->disconnected) { GRPC_SUBCHANNEL_WEAK_UNREF(exec_ctx, c, "connecting"); } else { - gpr_timespec now = gpr_now(GPR_CLOCK_MONOTONIC); - GPR_ASSERT(!c->have_alarm); - c->have_alarm = 1; grpc_connectivity_state_set( exec_ctx, &c->state_tracker, GRPC_CHANNEL_TRANSIENT_FAILURE, grpc_error_set_int( GRPC_ERROR_CREATE_REFERENCING("Connect Failed", &error, 1), GRPC_ERROR_INT_GRPC_STATUS, GRPC_STATUS_UNAVAILABLE), "connect_failed"); - gpr_timespec time_til_next = gpr_time_sub(c->next_attempt, now); + const char *errmsg = grpc_error_string(error); gpr_log(GPR_INFO, "Connect failed: %s", errmsg); - if (gpr_time_cmp(time_til_next, gpr_time_0(time_til_next.clock_type)) <= - 0) { - gpr_log(GPR_INFO, "Retry immediately"); - } else { - gpr_log(GPR_INFO, "Retry in %" PRId64 ".%09d seconds", - time_til_next.tv_sec, time_til_next.tv_nsec); - } - grpc_timer_init(exec_ctx, &c->alarm, c->next_attempt, on_alarm, c, now); grpc_error_free_string(errmsg); + + maybe_start_connecting_locked(exec_ctx, c); + GRPC_SUBCHANNEL_WEAK_UNREF(exec_ctx, c, "connecting"); } gpr_mu_unlock(&c->mu); - GRPC_SUBCHANNEL_WEAK_UNREF(exec_ctx, c, "connecting"); + GRPC_SUBCHANNEL_WEAK_UNREF(exec_ctx, c, "connected"); grpc_channel_args_destroy(exec_ctx, delete_channel_args); } diff --git a/src/core/ext/lb_policy/grpclb/grpclb.c b/src/core/ext/lb_policy/grpclb/grpclb.c index ab4af321f6..34fd388920 100644 --- a/src/core/ext/lb_policy/grpclb/grpclb.c +++ b/src/core/ext/lb_policy/grpclb/grpclb.c @@ -183,16 +183,14 @@ static void wrapped_rr_closure(grpc_exec_ctx *exec_ctx, void *arg, NULL); if (wc_arg->rr_policy != NULL) { - /* if target is NULL, no pick has been made by the RR policy (eg, all + /* if *target is NULL, no pick has been made by the RR policy (eg, all * addresses failed to connect). There won't be any user_data/token * available */ - if (wc_arg->target != NULL) { + if (*wc_arg->target != NULL) { if (!GRPC_MDISNULL(wc_arg->lb_token)) { - GRPC_LOG_IF_ERROR( - "grpclb.initial_metadata_add_lb_token", - initial_metadata_add_lb_token(wc_arg->initial_metadata, - wc_arg->lb_token_mdelem_storage, - GRPC_MDELEM_REF(wc_arg->lb_token))); + initial_metadata_add_lb_token(wc_arg->initial_metadata, + wc_arg->lb_token_mdelem_storage, + GRPC_MDELEM_REF(wc_arg->lb_token)); } else { gpr_log(GPR_ERROR, "No LB token for connected subchannel pick %p (from RR " @@ -1244,12 +1242,15 @@ static void lb_on_response_received(grpc_exec_ctx *exec_ctx, void *arg, gpr_log(GPR_INFO, "Incoming server list identical to current, ignoring."); } + grpc_grpclb_destroy_serverlist(serverlist); } else { /* new serverlist */ if (glb_policy->serverlist != NULL) { /* dispose of the old serverlist */ grpc_grpclb_destroy_serverlist(glb_policy->serverlist); } - /* and update the copy in the glb_lb_policy instance */ + /* and update the copy in the glb_lb_policy instance. This serverlist + * instance will be destroyed either upon the next update or in + * glb_destroy() */ glb_policy->serverlist = serverlist; rr_handover_locked(exec_ctx, glb_policy); diff --git a/src/core/ext/transport/chttp2/transport/chttp2_transport.c b/src/core/ext/transport/chttp2/transport/chttp2_transport.c index 3e72c7cc2c..f84e5a610b 100644 --- a/src/core/ext/transport/chttp2/transport/chttp2_transport.c +++ b/src/core/ext/transport/chttp2/transport/chttp2_transport.c @@ -957,6 +957,19 @@ static void complete_fetch(grpc_exec_ctx *exec_ctx, void *gs, static void do_nothing(grpc_exec_ctx *exec_ctx, void *arg, grpc_error *error) {} +static void log_metadata(const grpc_metadata_batch *md_batch, uint32_t id, + bool is_client, bool is_initial) { + for (grpc_linked_mdelem *md = md_batch->list.head; md != md_batch->list.tail; + md = md->next) { + char *key = grpc_dump_slice(GRPC_MDKEY(md->md), GPR_DUMP_ASCII); + char *value = grpc_dump_slice(GRPC_MDVALUE(md->md), GPR_DUMP_ASCII); + gpr_log(GPR_INFO, "HTTP:%d:%s:%s: %s: %s", id, is_initial ? "HDR" : "TRL", + is_client ? "CLI" : "SVR", key, value); + gpr_free(key); + gpr_free(value); + } +} + static void perform_stream_op_locked(grpc_exec_ctx *exec_ctx, void *stream_op, grpc_error *error_ignored) { GPR_TIMER_BEGIN("perform_stream_op_locked", 0); @@ -970,6 +983,12 @@ static void perform_stream_op_locked(grpc_exec_ctx *exec_ctx, void *stream_op, gpr_log(GPR_DEBUG, "perform_stream_op_locked: %s; on_complete = %p", str, op->on_complete); gpr_free(str); + if (op->send_initial_metadata) { + log_metadata(op->send_initial_metadata, s->id, t->is_client, true); + } + if (op->send_trailing_metadata) { + log_metadata(op->send_trailing_metadata, s->id, t->is_client, false); + } } grpc_closure *on_complete = op->on_complete; |