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Remove chttp2 combiner and replace it with a simple mutex.

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pull/20331/head
Yash Tibrewal 5 years ago
parent 74f8da0ae9
commit 682c807f05
5 changed files with 140 additions and 62 deletions
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  1. 134
      src/core/ext/transport/chttp2/transport/chttp2_transport.cc
  2. 7
      src/core/ext/transport/chttp2/transport/hpack_parser.cc
  3. 4
      src/core/ext/transport/chttp2/transport/internal.h
  4. 2
      src/core/ext/transport/chttp2/transport/writing.cc
  5. 39
      src/core/lib/iomgr/closure.h

134
src/core/ext/transport/chttp2/transport/chttp2_transport.cc
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@ -198,8 +198,6 @@ grpc_chttp2_transport::~grpc_chttp2_transport() {
grpc_chttp2_stream_map_destroy(&stream_map);
grpc_connectivity_state_destroy(&channel_callback.state_tracker);
GRPC_COMBINER_UNREF(combiner, "chttp2_transport");
cancel_pings(this,
GRPC_ERROR_CREATE_FROM_STATIC_STRING("Transport destroyed"));
@ -214,6 +212,7 @@ grpc_chttp2_transport::~grpc_chttp2_transport() {
GRPC_ERROR_UNREF(closed_with_error);
gpr_free(ping_acks);
gpr_free(peer_string);
gpr_mu_destroy(&mu);
}
static const grpc_transport_vtable* get_vtable(void);
@ -394,32 +393,29 @@ static bool read_channel_args(grpc_chttp2_transport* t,
static void init_transport_closures(grpc_chttp2_transport* t) {
GRPC_CLOSURE_INIT(&t->read_action_locked, read_action_locked, t,
grpc_combiner_scheduler(t->combiner));
grpc_schedule_on_exec_ctx);
GRPC_CLOSURE_INIT(&t->benign_reclaimer_locked, benign_reclaimer_locked, t,
grpc_combiner_scheduler(t->combiner));
grpc_schedule_on_exec_ctx);
GRPC_CLOSURE_INIT(&t->destructive_reclaimer_locked,
destructive_reclaimer_locked, t,
grpc_combiner_scheduler(t->combiner));
destructive_reclaimer_locked, t, grpc_schedule_on_exec_ctx);
GRPC_CLOSURE_INIT(&t->retry_initiate_ping_locked, retry_initiate_ping_locked,
t, grpc_combiner_scheduler(t->combiner));
t, grpc_schedule_on_exec_ctx);
GRPC_CLOSURE_INIT(&t->start_bdp_ping_locked, start_bdp_ping_locked, t,
grpc_combiner_scheduler(t->combiner));
grpc_schedule_on_exec_ctx);
GRPC_CLOSURE_INIT(&t->finish_bdp_ping_locked, finish_bdp_ping_locked, t,
grpc_combiner_scheduler(t->combiner));
grpc_schedule_on_exec_ctx);
GRPC_CLOSURE_INIT(&t->next_bdp_ping_timer_expired_locked,
next_bdp_ping_timer_expired_locked, t,
grpc_combiner_scheduler(t->combiner));
grpc_schedule_on_exec_ctx);
GRPC_CLOSURE_INIT(&t->init_keepalive_ping_locked, init_keepalive_ping_locked,
t, grpc_combiner_scheduler(t->combiner));
t, grpc_schedule_on_exec_ctx);
GRPC_CLOSURE_INIT(&t->start_keepalive_ping_locked,
start_keepalive_ping_locked, t,
grpc_combiner_scheduler(t->combiner));
start_keepalive_ping_locked, t, grpc_schedule_on_exec_ctx);
GRPC_CLOSURE_INIT(&t->finish_keepalive_ping_locked,
finish_keepalive_ping_locked, t,
grpc_combiner_scheduler(t->combiner));
finish_keepalive_ping_locked, t, grpc_schedule_on_exec_ctx);
GRPC_CLOSURE_INIT(&t->keepalive_watchdog_fired_locked,
keepalive_watchdog_fired_locked, t,
grpc_combiner_scheduler(t->combiner));
grpc_schedule_on_exec_ctx);
}
static void init_transport_keepalive_settings(grpc_chttp2_transport* t) {
@ -474,13 +470,13 @@ grpc_chttp2_transport::grpc_chttp2_transport(
ep(ep),
peer_string(grpc_endpoint_get_peer(ep)),
resource_user(resource_user),
combiner(grpc_combiner_create()),
is_client(is_client),
next_stream_id(is_client ? 1 : 2),
deframe_state(is_client ? GRPC_DTS_FH_0 : GRPC_DTS_CLIENT_PREFIX_0) {
GPR_ASSERT(strlen(GRPC_CHTTP2_CLIENT_CONNECT_STRING) ==
GRPC_CHTTP2_CLIENT_CONNECT_STRLEN);
base.vtable = get_vtable();
gpr_mu_init(&mu);
/* 8 is a random stab in the dark as to a good initial size: it's small enough
that it shouldn't waste memory for infrequently used connections, yet
large enough that the exponential growth should happen nicely when it's
@ -561,11 +557,13 @@ grpc_chttp2_transport::grpc_chttp2_transport(
static void destroy_transport_locked(void* tp, grpc_error* error) {
grpc_chttp2_transport* t = static_cast<grpc_chttp2_transport*>(tp);
gpr_mu_lock(&t->mu);
t->destroying = 1;
close_transport_locked(
t, grpc_error_set_int(
GRPC_ERROR_CREATE_FROM_STATIC_STRING("Transport destroyed"),
GRPC_ERROR_INT_OCCURRED_DURING_WRITE, t->write_state));
gpr_mu_unlock(&t->mu);
// Must be the last line.
GRPC_CHTTP2_UNREF_TRANSPORT(t, "destroy");
}
@ -573,7 +571,7 @@ static void destroy_transport_locked(void* tp, grpc_error* error) {
static void destroy_transport(grpc_transport* gt) {
grpc_chttp2_transport* t = reinterpret_cast<grpc_chttp2_transport*>(gt);
GRPC_CLOSURE_SCHED(GRPC_CLOSURE_CREATE(destroy_transport_locked, t,
grpc_combiner_scheduler(t->combiner)),
grpc_schedule_on_exec_ctx),
GRPC_ERROR_NONE);
}
@ -687,12 +685,13 @@ grpc_chttp2_stream::grpc_chttp2_stream(grpc_chttp2_transport* t,
grpc_slice_buffer_init(&flow_controlled_buffer);
GRPC_CLOSURE_INIT(&complete_fetch_locked, ::complete_fetch_locked, this,
grpc_combiner_scheduler(t->combiner));
grpc_schedule_on_exec_ctx);
GRPC_CLOSURE_INIT(&reset_byte_stream, ::reset_byte_stream, this,
grpc_combiner_scheduler(t->combiner));
grpc_schedule_on_exec_ctx);
}
grpc_chttp2_stream::~grpc_chttp2_stream() {
gpr_mu_lock(&t->mu);
if (t->channelz_socket != nullptr) {
if ((t->is_client && eos_received) || (!t->is_client && eos_sent)) {
t->channelz_socket->RecordStreamSucceeded();
@ -743,7 +742,7 @@ grpc_chttp2_stream::~grpc_chttp2_stream() {
if (t->resource_user != nullptr) {
grpc_resource_user_free(t->resource_user, GRPC_RESOURCE_QUOTA_CALL_SIZE);
}
gpr_mu_unlock(&t->mu);
GRPC_CHTTP2_UNREF_TRANSPORT(t, "stream");
GRPC_CLOSURE_SCHED(destroy_stream_arg, GRPC_ERROR_NONE);
}
@ -766,7 +765,6 @@ static void destroy_stream_locked(void* sp, grpc_error* error) {
static void destroy_stream(grpc_transport* gt, grpc_stream* gs,
grpc_closure* then_schedule_closure) {
GPR_TIMER_SCOPE("destroy_stream", 0);
grpc_chttp2_transport* t = reinterpret_cast<grpc_chttp2_transport*>(gt);
grpc_chttp2_stream* s = reinterpret_cast<grpc_chttp2_stream*>(gs);
if (s->stream_compression_method !=
GRPC_STREAM_COMPRESSION_IDENTITY_COMPRESS &&
@ -784,7 +782,7 @@ static void destroy_stream(grpc_transport* gt, grpc_stream* gs,
s->destroy_stream_arg = then_schedule_closure;
GRPC_CLOSURE_SCHED(
GRPC_CLOSURE_INIT(&s->destroy_stream, destroy_stream_locked, s,
grpc_combiner_scheduler(t->combiner)),
grpc_schedule_on_exec_ctx),
GRPC_ERROR_NONE);
}
@ -947,10 +945,9 @@ void grpc_chttp2_initiate_write(grpc_chttp2_transport* t,
* Also, 'write_action_begin_locked' only gathers the bytes into outbuf.
* It does not call the endpoint to write the bytes. That is done by the
* 'write_action' (which is scheduled by 'write_action_begin_locked') */
GRPC_CLOSURE_SCHED(
GRPC_CLOSURE_INIT(&t->write_action_begin_locked,
GRPC_CLOSURE_SCHED(GRPC_CLOSURE_INIT(&t->write_action_begin_locked,
write_action_begin_locked, t,
grpc_combiner_finally_scheduler(t->combiner)),
grpc_schedule_on_exec_ctx),
GRPC_ERROR_NONE);
break;
case GRPC_CHTTP2_WRITE_STATE_WRITING:
@ -1019,6 +1016,7 @@ static const char* begin_writing_desc(bool partial, bool inlined) {
static void write_action_begin_locked(void* gt, grpc_error* error_ignored) {
GPR_TIMER_SCOPE("write_action_begin_locked", 0);
grpc_chttp2_transport* t = static_cast<grpc_chttp2_transport*>(gt);
gpr_mu_lock(&t->mu);
GPR_ASSERT(t->write_state != GRPC_CHTTP2_WRITE_STATE_IDLE);
grpc_chttp2_begin_write_result r;
if (t->closed_with_error != GRPC_ERROR_NONE) {
@ -1059,9 +1057,11 @@ static void write_action_begin_locked(void* gt, grpc_error* error_ignored) {
t->reading_paused_on_pending_induced_frames = false;
continue_read_action_locked(t);
}
gpr_mu_unlock(&t->mu);
} else {
GRPC_STATS_INC_HTTP2_SPURIOUS_WRITES_BEGUN();
set_write_state(t, GRPC_CHTTP2_WRITE_STATE_IDLE, "begin writing nothing");
gpr_mu_unlock(&t->mu);
GRPC_CHTTP2_UNREF_TRANSPORT(t, "writing");
}
}
@ -1074,7 +1074,7 @@ static void write_action(void* gt, grpc_error* error) {
grpc_endpoint_write(
t->ep, &t->outbuf,
GRPC_CLOSURE_INIT(&t->write_action_end_locked, write_action_end_locked, t,
grpc_combiner_scheduler(t->combiner)),
grpc_schedule_on_exec_ctx),
cl);
}
@ -1083,7 +1083,7 @@ static void write_action(void* gt, grpc_error* error) {
static void write_action_end_locked(void* tp, grpc_error* error) {
GPR_TIMER_SCOPE("terminate_writing_with_lock", 0);
grpc_chttp2_transport* t = static_cast<grpc_chttp2_transport*>(tp);
gpr_mu_lock(&t->mu);
bool closed = false;
if (error != GRPC_ERROR_NONE) {
close_transport_locked(t, GRPC_ERROR_REF(error));
@ -1119,15 +1119,15 @@ static void write_action_end_locked(void* tp, grpc_error* error) {
if (!closed) {
GRPC_CLOSURE_LIST_SCHED(&t->run_after_write);
}
GRPC_CLOSURE_RUN(
GRPC_CLOSURE_INIT(&t->write_action_begin_locked,
GRPC_CLOSURE_SCHED(GRPC_CLOSURE_INIT(&t->write_action_begin_locked,
write_action_begin_locked, t,
grpc_combiner_finally_scheduler(t->combiner)),
grpc_schedule_on_exec_ctx),
GRPC_ERROR_NONE);
break;
}
grpc_chttp2_end_write(t, GRPC_ERROR_REF(error));
gpr_mu_unlock(&t->mu);
GRPC_CHTTP2_UNREF_TRANSPORT(t, "writing");
}
@ -1389,6 +1389,7 @@ static void continue_fetching_send_locked(grpc_chttp2_transport* t,
static void complete_fetch_locked(void* gs, grpc_error* error) {
grpc_chttp2_stream* s = static_cast<grpc_chttp2_stream*>(gs);
grpc_chttp2_transport* t = s->t;
gpr_mu_lock(&t->mu);
if (error == GRPC_ERROR_NONE) {
error = s->fetching_send_message->Pull(&s->fetching_slice);
if (error == GRPC_ERROR_NONE) {
@ -1400,6 +1401,7 @@ static void complete_fetch_locked(void* gs, grpc_error* error) {
s->fetching_send_message.reset();
grpc_chttp2_cancel_stream(t, s, error);
}
gpr_mu_unlock(&t->mu);
}
static void log_metadata(const grpc_metadata_batch* md_batch, uint32_t id,
@ -1425,6 +1427,7 @@ static void perform_stream_op_locked(void* stream_op,
static_cast<grpc_chttp2_stream*>(op->handler_private.extra_arg);
grpc_transport_stream_op_batch_payload* op_payload = op->payload;
grpc_chttp2_transport* t = s->t;
gpr_mu_lock(&t->mu);
GRPC_STATS_INC_HTTP2_OP_BATCHES();
@ -1705,7 +1708,7 @@ static void perform_stream_op_locked(void* stream_op,
grpc_chttp2_complete_closure_step(t, s, &on_complete, GRPC_ERROR_NONE,
"op->on_complete");
}
gpr_mu_unlock(&t->mu);
GRPC_CHTTP2_STREAM_UNREF(s, "perform_stream_op");
}
@ -1738,7 +1741,7 @@ static void perform_stream_op(grpc_transport* gt, grpc_stream* gs,
op->handler_private.extra_arg = gs;
GRPC_CLOSURE_SCHED(
GRPC_CLOSURE_INIT(&op->handler_private.closure, perform_stream_op_locked,
op, grpc_combiner_scheduler(t->combiner)),
op, grpc_schedule_on_exec_ctx),
GRPC_ERROR_NONE);
}
@ -1749,8 +1752,12 @@ static void cancel_pings(grpc_chttp2_transport* t, grpc_error* error) {
GPR_ASSERT(error != GRPC_ERROR_NONE);
for (size_t j = 0; j < GRPC_CHTTP2_PCL_COUNT; j++) {
grpc_closure_list_fail_all(&pq->lists[j], GRPC_ERROR_REF(error));
if (j == GRPC_CHTTP2_PCL_INITIATE) {
GRPC_CLOSURE_LIST_RUN(&pq->lists[j]);
} else {
GRPC_CLOSURE_LIST_SCHED(&pq->lists[j]);
}
}
GRPC_ERROR_UNREF(error);
}
@ -1777,7 +1784,7 @@ static void send_keepalive_ping_locked(grpc_chttp2_transport* t) {
if (t->closed_with_error != GRPC_ERROR_NONE) {
GRPC_CLOSURE_RUN(&t->start_keepalive_ping_locked,
GRPC_ERROR_REF(t->closed_with_error));
GRPC_CLOSURE_RUN(&t->finish_keepalive_ping_locked,
GRPC_CLOSURE_SCHED(&t->finish_keepalive_ping_locked,
GRPC_ERROR_REF(t->closed_with_error));
return;
}
@ -1797,10 +1804,12 @@ static void send_keepalive_ping_locked(grpc_chttp2_transport* t) {
static void retry_initiate_ping_locked(void* tp, grpc_error* error) {
grpc_chttp2_transport* t = static_cast<grpc_chttp2_transport*>(tp);
gpr_mu_lock(&t->mu);
t->ping_state.is_delayed_ping_timer_set = false;
if (error == GRPC_ERROR_NONE) {
grpc_chttp2_initiate_write(t, GRPC_CHTTP2_INITIATE_WRITE_RETRY_SEND_PING);
}
gpr_mu_unlock(&t->mu);
GRPC_CHTTP2_UNREF_TRANSPORT(t, "retry_initiate_ping_locked");
}
@ -1854,7 +1863,7 @@ static void perform_transport_op_locked(void* stream_op,
grpc_transport_op* op = static_cast<grpc_transport_op*>(stream_op);
grpc_chttp2_transport* t =
static_cast<grpc_chttp2_transport*>(op->handler_private.extra_arg);
gpr_mu_lock(&t->mu);
if (op->goaway_error) {
send_goaway(t, op->goaway_error);
}
@ -1888,8 +1897,8 @@ static void perform_transport_op_locked(void* stream_op,
close_transport_locked(t, op->disconnect_with_error);
}
GRPC_CLOSURE_RUN(op->on_consumed, GRPC_ERROR_NONE);
GRPC_CLOSURE_SCHED(op->on_consumed, GRPC_ERROR_NONE);
gpr_mu_unlock(&t->mu);
GRPC_CHTTP2_UNREF_TRANSPORT(t, "transport_op");
}
@ -1904,7 +1913,7 @@ static void perform_transport_op(grpc_transport* gt, grpc_transport_op* op) {
GRPC_CHTTP2_REF_TRANSPORT(t, "transport_op");
GRPC_CLOSURE_SCHED(GRPC_CLOSURE_INIT(&op->handler_private.closure,
perform_transport_op_locked, op,
grpc_combiner_scheduler(t->combiner)),
grpc_schedule_on_exec_ctx),
GRPC_ERROR_NONE);
}
@ -2550,7 +2559,7 @@ static void read_action_locked(void* tp, grpc_error* error) {
GPR_TIMER_SCOPE("reading_action_locked", 0);
grpc_chttp2_transport* t = static_cast<grpc_chttp2_transport*>(tp);
gpr_mu_lock(&t->mu);
GRPC_ERROR_REF(error);
grpc_error* err = error;
@ -2634,7 +2643,9 @@ static void read_action_locked(void* tp, grpc_error* error) {
} else {
continue_read_action_locked(t);
}
gpr_mu_unlock(&t->mu);
} else {
gpr_mu_unlock(&t->mu);
GRPC_CHTTP2_UNREF_TRANSPORT(t, "reading_action");
}
@ -2656,6 +2667,8 @@ static void schedule_bdp_ping_locked(grpc_chttp2_transport* t) {
static void start_bdp_ping_locked(void* tp, grpc_error* error) {
grpc_chttp2_transport* t = static_cast<grpc_chttp2_transport*>(tp);
// No need to take a lock. Closure scheduler will already have a lock.
// gpr_mu_lock(&t->mu);
if (GRPC_TRACE_FLAG_ENABLED(grpc_http_trace)) {
gpr_log(GPR_INFO, "%s: Start BDP ping err=%s", t->peer_string,
grpc_error_string(error));
@ -2668,15 +2681,18 @@ static void start_bdp_ping_locked(void* tp, grpc_error* error) {
grpc_timer_cancel(&t->keepalive_ping_timer);
}
t->flow_control->bdp_estimator()->StartPing();
// gpr_mu_unlock(&t->mu);
}
static void finish_bdp_ping_locked(void* tp, grpc_error* error) {
grpc_chttp2_transport* t = static_cast<grpc_chttp2_transport*>(tp);
gpr_mu_lock(&t->mu);
if (GRPC_TRACE_FLAG_ENABLED(grpc_http_trace)) {
gpr_log(GPR_INFO, "%s: Complete BDP ping err=%s", t->peer_string,
grpc_error_string(error));
}
if (error != GRPC_ERROR_NONE || t->closed_with_error != GRPC_ERROR_NONE) {
gpr_mu_unlock(&t->mu);
GRPC_CHTTP2_UNREF_TRANSPORT(t, "bdp_ping");
return;
}
@ -2687,17 +2703,21 @@ static void finish_bdp_ping_locked(void* tp, grpc_error* error) {
t->have_next_bdp_ping_timer = true;
grpc_timer_init(&t->next_bdp_ping_timer, next_ping,
&t->next_bdp_ping_timer_expired_locked);
gpr_mu_unlock(&t->mu);
}
static void next_bdp_ping_timer_expired_locked(void* tp, grpc_error* error) {
grpc_chttp2_transport* t = static_cast<grpc_chttp2_transport*>(tp);
gpr_mu_lock(&t->mu);
GPR_ASSERT(t->have_next_bdp_ping_timer);
t->have_next_bdp_ping_timer = false;
if (error != GRPC_ERROR_NONE) {
gpr_mu_unlock(&t->mu);
GRPC_CHTTP2_UNREF_TRANSPORT(t, "bdp_ping");
return;
}
schedule_bdp_ping_locked(t);
gpr_mu_unlock(&t->mu);
}
void grpc_chttp2_config_default_keepalive_args(grpc_channel_args* args,
@ -2769,6 +2789,7 @@ void grpc_chttp2_config_default_keepalive_args(grpc_channel_args* args,
static void init_keepalive_ping_locked(void* arg, grpc_error* error) {
grpc_chttp2_transport* t = static_cast<grpc_chttp2_transport*>(arg);
gpr_mu_lock(&t->mu);
GPR_ASSERT(t->keepalive_state == GRPC_CHTTP2_KEEPALIVE_STATE_WAITING);
if (t->destroying || t->closed_with_error != GRPC_ERROR_NONE) {
t->keepalive_state = GRPC_CHTTP2_KEEPALIVE_STATE_DYING;
@ -2793,6 +2814,7 @@ static void init_keepalive_ping_locked(void* arg, grpc_error* error) {
grpc_core::ExecCtx::Get()->Now() + t->keepalive_time,
&t->init_keepalive_ping_locked);
}
gpr_mu_unlock(&t->mu);
GRPC_CHTTP2_UNREF_TRANSPORT(t, "init keepalive ping");
}
@ -2801,6 +2823,8 @@ static void start_keepalive_ping_locked(void* arg, grpc_error* error) {
if (error != GRPC_ERROR_NONE) {
return;
}
// No need to take a lock.
// gpr_mu_lock(&t->mu);
if (t->channelz_socket != nullptr) {
t->channelz_socket->RecordKeepaliveSent();
}
@ -2811,10 +2835,12 @@ static void start_keepalive_ping_locked(void* arg, grpc_error* error) {
grpc_timer_init(&t->keepalive_watchdog_timer,
grpc_core::ExecCtx::Get()->Now() + t->keepalive_timeout,
&t->keepalive_watchdog_fired_locked);
// gpr_mu_unlock(&t->mu);
}
static void finish_keepalive_ping_locked(void* arg, grpc_error* error) {
grpc_chttp2_transport* t = static_cast<grpc_chttp2_transport*>(arg);
gpr_mu_lock(&t->mu);
if (t->keepalive_state == GRPC_CHTTP2_KEEPALIVE_STATE_PINGING) {
if (error == GRPC_ERROR_NONE) {
if (GRPC_TRACE_FLAG_ENABLED(grpc_http_trace)) {
@ -2828,11 +2854,13 @@ static void finish_keepalive_ping_locked(void* arg, grpc_error* error) {
&t->init_keepalive_ping_locked);
}
}
gpr_mu_unlock(&t->mu);
GRPC_CHTTP2_UNREF_TRANSPORT(t, "keepalive ping end");
}
static void keepalive_watchdog_fired_locked(void* arg, grpc_error* error) {
grpc_chttp2_transport* t = static_cast<grpc_chttp2_transport*>(arg);
gpr_mu_lock(&t->mu);
if (t->keepalive_state == GRPC_CHTTP2_KEEPALIVE_STATE_PINGING) {
if (error == GRPC_ERROR_NONE) {
gpr_log(GPR_ERROR, "%s: Keepalive watchdog fired. Closing transport.",
@ -2852,6 +2880,7 @@ static void keepalive_watchdog_fired_locked(void* arg, grpc_error* error) {
t->keepalive_state, GRPC_CHTTP2_KEEPALIVE_STATE_PINGING);
}
}
gpr_mu_unlock(&t->mu);
GRPC_CHTTP2_UNREF_TRANSPORT(t, "keepalive watchdog");
}
@ -2890,6 +2919,7 @@ static void set_pollset_set(grpc_transport* gt, grpc_stream* gs,
static void reset_byte_stream(void* arg, grpc_error* error) {
grpc_chttp2_stream* s = static_cast<grpc_chttp2_stream*>(arg);
gpr_mu_lock(&s->t->mu);
s->pending_byte_stream = false;
if (error == GRPC_ERROR_NONE) {
grpc_chttp2_maybe_complete_recv_message(s->t, s);
@ -2903,6 +2933,7 @@ static void reset_byte_stream(void* arg, grpc_error* error) {
grpc_chttp2_cancel_stream(s->t, s, GRPC_ERROR_REF(error));
s->byte_stream_error = GRPC_ERROR_REF(error);
}
gpr_mu_unlock(&s->t->mu);
}
namespace grpc_core {
@ -2924,25 +2955,28 @@ void Chttp2IncomingByteStream::OrphanLocked(void* arg,
Chttp2IncomingByteStream* bs = static_cast<Chttp2IncomingByteStream*>(arg);
grpc_chttp2_stream* s = bs->stream_;
grpc_chttp2_transport* t = s->t;
gpr_mu_lock(&t->mu);
bs->Unref();
s->pending_byte_stream = false;
grpc_chttp2_maybe_complete_recv_message(t, s);
grpc_chttp2_maybe_complete_recv_trailing_metadata(t, s);
gpr_mu_unlock(&t->mu);
}
void Chttp2IncomingByteStream::Orphan() {
GPR_TIMER_SCOPE("incoming_byte_stream_destroy", 0);
GRPC_CLOSURE_SCHED(
GRPC_CLOSURE_INIT(&destroy_action_,
&Chttp2IncomingByteStream::OrphanLocked, this,
grpc_combiner_scheduler(transport_->combiner)),
GRPC_ERROR_NONE);
OrphanLocked(this, GRPC_ERROR_NONE);
/*GRPC_CLOSURE_SCHED(GRPC_CLOSURE_INIT(&destroy_action_,
&Chttp2IncomingByteStream::OrphanLocked,
this, grpc_schedule_on_exec_ctx),
GRPC_ERROR_NONE);*/
}
void Chttp2IncomingByteStream::NextLocked(void* arg,
grpc_error* error_ignored) {
Chttp2IncomingByteStream* bs = static_cast<Chttp2IncomingByteStream*>(arg);
grpc_chttp2_transport* t = bs->transport_;
gpr_mu_lock(&t->mu);
grpc_chttp2_stream* s = bs->stream_;
size_t cur_length = s->frame_storage.length;
if (!s->read_closed) {
@ -2981,6 +3015,7 @@ void Chttp2IncomingByteStream::NextLocked(void* arg,
s->on_next = bs->next_action_.on_complete;
}
bs->Unref();
gpr_mu_unlock(&t->mu);
}
bool Chttp2IncomingByteStream::Next(size_t max_size_hint,
@ -2992,10 +3027,9 @@ bool Chttp2IncomingByteStream::Next(size_t max_size_hint,
Ref();
next_action_.max_size_hint = max_size_hint;
next_action_.on_complete = on_complete;
GRPC_CLOSURE_SCHED(
GRPC_CLOSURE_INIT(&next_action_.closure,
&Chttp2IncomingByteStream::NextLocked, this,
grpc_combiner_scheduler(transport_->combiner)),
GRPC_CLOSURE_SCHED(GRPC_CLOSURE_INIT(&next_action_.closure,
&Chttp2IncomingByteStream::NextLocked,
this, grpc_schedule_on_exec_ctx),
GRPC_ERROR_NONE);
return false;
}
@ -3124,6 +3158,7 @@ static void post_destructive_reclaimer(grpc_chttp2_transport* t) {
static void benign_reclaimer_locked(void* arg, grpc_error* error) {
grpc_chttp2_transport* t = static_cast<grpc_chttp2_transport*>(arg);
gpr_mu_lock(&t->mu);
if (error == GRPC_ERROR_NONE &&
grpc_chttp2_stream_map_size(&t->stream_map) == 0) {
/* Channel with no active streams: send a goaway to try and make it
@ -3148,11 +3183,13 @@ static void benign_reclaimer_locked(void* arg, grpc_error* error) {
grpc_resource_user_finish_reclamation(
grpc_endpoint_get_resource_user(t->ep));
}
gpr_mu_unlock(&t->mu);
GRPC_CHTTP2_UNREF_TRANSPORT(t, "benign_reclaimer");
}
static void destructive_reclaimer_locked(void* arg, grpc_error* error) {
grpc_chttp2_transport* t = static_cast<grpc_chttp2_transport*>(arg);
gpr_mu_lock(&t->mu);
size_t n = grpc_chttp2_stream_map_size(&t->stream_map);
t->destructive_reclaimer_registered = false;
if (error == GRPC_ERROR_NONE && n > 0) {
@ -3179,6 +3216,7 @@ static void destructive_reclaimer_locked(void* arg, grpc_error* error) {
grpc_resource_user_finish_reclamation(
grpc_endpoint_get_resource_user(t->ep));
}
gpr_mu_unlock(&t->mu);
GRPC_CHTTP2_UNREF_TRANSPORT(t, "destructive_reclaimer");
}

7
src/core/ext/transport/chttp2/transport/hpack_parser.cc
Unescape View File

@ -1669,12 +1669,14 @@ static const maybe_complete_func_type maybe_complete_funcs[] = {
static void force_client_rst_stream(void* sp, grpc_error* error) {
grpc_chttp2_stream* s = static_cast<grpc_chttp2_stream*>(sp);
grpc_chttp2_transport* t = s->t;
gpr_mu_lock(&t->mu);
if (!s->write_closed) {
grpc_chttp2_add_rst_stream_to_next_write(t, s->id, GRPC_HTTP2_NO_ERROR,
&s->stats.outgoing);
grpc_chttp2_initiate_write(t, GRPC_CHTTP2_INITIATE_WRITE_FORCE_RST_STREAM);
grpc_chttp2_mark_stream_closed(t, s, true, true, GRPC_ERROR_NONE);
}
gpr_mu_unlock(&t->mu);
GRPC_CHTTP2_STREAM_UNREF(s, "final_rst");
}
@ -1741,9 +1743,8 @@ grpc_error* grpc_chttp2_header_parser_parse(void* hpack_parser,
however -- it might be that we receive a RST_STREAM following this
and can avoid the extra write */
GRPC_CHTTP2_STREAM_REF(s, "final_rst");
GRPC_CLOSURE_SCHED(
GRPC_CLOSURE_CREATE(force_client_rst_stream, s,
grpc_combiner_finally_scheduler(t->combiner)),
GRPC_CLOSURE_SCHED(GRPC_CLOSURE_CREATE(force_client_rst_stream, s,
grpc_schedule_on_exec_ctx),
GRPC_ERROR_NONE);
}
grpc_chttp2_mark_stream_closed(t, s, true, false, GRPC_ERROR_NONE);

4
src/core/ext/transport/chttp2/transport/internal.h
Unescape View File

@ -39,6 +39,7 @@
#include "src/core/lib/channel/channelz.h"
#include "src/core/lib/compression/stream_compression.h"
#include "src/core/lib/gprpp/manual_constructor.h"
#include "src/core/lib/gprpp/sync.h"
#include "src/core/lib/iomgr/combiner.h"
#include "src/core/lib/iomgr/endpoint.h"
#include "src/core/lib/iomgr/timer.h"
@ -294,14 +295,13 @@ struct grpc_chttp2_transport {
~grpc_chttp2_transport();
grpc_transport base; /* must be first */
gpr_mu mu;
grpc_core::RefCount refs;
grpc_endpoint* ep;
char* peer_string;
grpc_resource_user* resource_user;
grpc_combiner* combiner;
grpc_closure* notify_on_receive_settings = nullptr;
/** write execution state of the transport */

2
src/core/ext/transport/chttp2/transport/writing.cc
Unescape View File

@ -104,7 +104,7 @@ static void maybe_initiate_ping(grpc_chttp2_transport* t) {
pq->inflight_id = t->ping_ctr;
t->ping_ctr++;
GRPC_CLOSURE_LIST_SCHED(&pq->lists[GRPC_CHTTP2_PCL_INITIATE]);
GRPC_CLOSURE_LIST_RUN(&pq->lists[GRPC_CHTTP2_PCL_INITIATE]);
grpc_closure_list_move(&pq->lists[GRPC_CHTTP2_PCL_NEXT],
&pq->lists[GRPC_CHTTP2_PCL_INFLIGHT]);
grpc_slice_buffer_add(&t->outbuf,

39
src/core/lib/iomgr/closure.h
Unescape View File

@ -355,4 +355,43 @@ inline void grpc_closure_list_sched(grpc_closure_list* list) {
grpc_closure_list_sched(closure_list)
#endif
#ifndef NDEBUG
inline void grpc_closure_list_run(const char* file, int line,
grpc_closure_list* list) {
#else
inline void grpc_closure_list_run(grpc_closure_list* list) {
#endif
grpc_closure* c = list->head;
while (c != nullptr) {
grpc_closure* next = c->next_data.next;
#ifndef NDEBUG
if (c->scheduled) {
gpr_log(GPR_ERROR,
"Closure already scheduled. (closure: %p, created: [%s:%d], "
"previously scheduled at: [%s: %d] run?: %s",
c, c->file_created, c->line_created, c->file_initiated,
c->line_initiated, c->run ? "true" : "false");
abort();
}
c->scheduled = true;
c->file_initiated = file;
c->line_initiated = line;
c->run = false;
GPR_ASSERT(c->cb != nullptr);
#endif
c->scheduler->vtable->run(c, c->error_data.error);
c = next;
}
list->head = list->tail = nullptr;
}
/** Schedule all closures in a list to be run. Does not need to be run from a
* safe point. */
#ifndef NDEBUG
#define GRPC_CLOSURE_LIST_RUN(closure_list) \
grpc_closure_list_run(__FILE__, __LINE__, closure_list)
#else
#define GRPC_CLOSURE_LIST_RUN(closure_list) grpc_closure_list_run(closure_list)
#endif
#endif /* GRPC_CORE_LIB_IOMGR_CLOSURE_H */

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