diff options
Diffstat (limited to 'src/core/ext/transport/chttp2/transport/writing.c')
| -rw-r--r-- | src/core/ext/transport/chttp2/transport/writing.c | 43 |
1 files changed, 23 insertions, 20 deletions
diff --git a/src/core/ext/transport/chttp2/transport/writing.c b/src/core/ext/transport/chttp2/transport/writing.c index 3fa38db4db..7d9d4867e1 100644 --- a/src/core/ext/transport/chttp2/transport/writing.c +++ b/src/core/ext/transport/chttp2/transport/writing.c @@ -68,7 +68,7 @@ static void maybe_initiate_ping(grpc_exec_ctx *exec_ctx, } if (t->ping_state.pings_before_data_required == 0 && t->ping_policy.max_pings_without_data != 0) { - /* need to send something of substance before sending a ping again */ + /* need to receive something of substance before sending a ping again */ if (GRPC_TRACER_ON(grpc_http_trace) || GRPC_TRACER_ON(grpc_bdp_estimator_trace)) { gpr_log(GPR_DEBUG, "Ping delayed [%p]: too many recent pings: %d/%d", @@ -78,11 +78,18 @@ static void maybe_initiate_ping(grpc_exec_ctx *exec_ctx, return; } gpr_timespec now = gpr_now(GPR_CLOCK_MONOTONIC); - gpr_timespec elapsed = gpr_time_sub(now, t->ping_state.last_ping_sent_time); - /*gpr_log(GPR_DEBUG, "elapsed:%d.%09d min:%d.%09d", (int)elapsed.tv_sec, - elapsed.tv_nsec, (int)t->ping_policy.min_time_between_pings.tv_sec, - (int)t->ping_policy.min_time_between_pings.tv_nsec);*/ - if (gpr_time_cmp(elapsed, t->ping_policy.min_time_between_pings) < 0) { + gpr_timespec next_allowed_ping = + gpr_time_add(t->ping_state.last_ping_sent_time, + t->ping_policy.min_sent_ping_interval_without_data); + if (t->keepalive_permit_without_calls == 0 && + grpc_chttp2_stream_map_size(&t->stream_map) == 0) { + next_allowed_ping = gpr_time_add(t->ping_recv_state.last_ping_recv_time, + gpr_time_from_seconds(7200, GPR_TIMESPAN)); + } + /* gpr_log(GPR_DEBUG, "next_allowed_ping:%d.%09d now:%d.%09d", + (int)next_allowed_ping.tv_sec, (int)next_allowed_ping.tv_nsec, + (int)now.tv_sec, (int)now.tv_nsec); */ + if (gpr_time_cmp(next_allowed_ping, now) > 0) { /* not enough elapsed time between successive pings */ if (GRPC_TRACER_ON(grpc_http_trace) || GRPC_TRACER_ON(grpc_bdp_estimator_trace)) { @@ -93,9 +100,7 @@ static void maybe_initiate_ping(grpc_exec_ctx *exec_ctx, if (!t->ping_state.is_delayed_ping_timer_set) { t->ping_state.is_delayed_ping_timer_set = true; grpc_timer_init(exec_ctx, &t->ping_state.delayed_ping_timer, - gpr_time_add(t->ping_state.last_ping_sent_time, - t->ping_policy.min_time_between_pings), - &t->retry_initiate_ping_locked, + next_allowed_ping, &t->retry_initiate_ping_locked, gpr_now(GPR_CLOCK_MONOTONIC)); } return; @@ -119,6 +124,12 @@ static void maybe_initiate_ping(grpc_exec_ctx *exec_ctx, grpc_chttp2_ping_create(false, pq->inflight_id)); GRPC_STATS_INC_HTTP2_PINGS_SENT(exec_ctx); t->ping_state.last_ping_sent_time = now; + if (GRPC_TRACER_ON(grpc_http_trace) || + GRPC_TRACER_ON(grpc_bdp_estimator_trace)) { + gpr_log(GPR_DEBUG, "Ping sent [%p]: %d/%d", t->peer_string, + t->ping_state.pings_before_data_required, + t->ping_policy.max_pings_without_data); + } t->ping_state.pings_before_data_required -= (t->ping_state.pings_before_data_required != 0); } @@ -201,9 +212,8 @@ grpc_chttp2_begin_write_result grpc_chttp2_begin_write( if (t->flow_control.remote_window > 0) { while (grpc_chttp2_list_pop_stalled_by_transport(t, &s)) { - if (!t->closed && grpc_chttp2_list_add_writable_stream(t, s) && - stream_ref_if_not_destroyed(&s->refcount->refs)) { - grpc_chttp2_initiate_write(exec_ctx, t, "transport.read_flow_control"); + if (!t->closed && grpc_chttp2_list_add_writable_stream(t, s)) { + stream_ref_if_not_destroyed(&s->refcount->refs); } } } @@ -258,8 +268,7 @@ grpc_chttp2_begin_write_result grpc_chttp2_begin_write( .stats = &s->stats.outgoing}; grpc_chttp2_encode_header(exec_ctx, &t->hpack_compressor, NULL, 0, s->send_initial_metadata, &hopt, &t->outbuf); - t->ping_state.pings_before_data_required = - t->ping_policy.max_pings_without_data; + now_writing = true; if (!t->is_client) { t->ping_recv_state.last_ping_recv_time = gpr_inf_past(GPR_CLOCK_MONOTONIC); @@ -298,8 +307,6 @@ grpc_chttp2_begin_write_result grpc_chttp2_begin_write( grpc_slice_buffer_add( &t->outbuf, grpc_chttp2_window_update_create(s->id, stream_announce, &s->stats.outgoing)); - t->ping_state.pings_before_data_required = - t->ping_policy.max_pings_without_data; if (!t->is_client) { t->ping_recv_state.last_ping_recv_time = gpr_inf_past(GPR_CLOCK_MONOTONIC); @@ -376,8 +383,6 @@ grpc_chttp2_begin_write_result grpc_chttp2_begin_write( send_bytes); s->sending_bytes += send_bytes; } - t->ping_state.pings_before_data_required = - t->ping_policy.max_pings_without_data; if (!t->is_client) { t->ping_recv_state.last_ping_recv_time = gpr_inf_past(GPR_CLOCK_MONOTONIC); @@ -488,8 +493,6 @@ grpc_chttp2_begin_write_result grpc_chttp2_begin_write( grpc_slice_buffer_add( &t->outbuf, grpc_chttp2_window_update_create(0, transport_announce, &throwaway_stats)); - t->ping_state.pings_before_data_required = - t->ping_policy.max_pings_without_data; if (!t->is_client) { t->ping_recv_state.last_ping_recv_time = gpr_inf_past(GPR_CLOCK_MONOTONIC); |