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Diffstat (limited to 'src/core/lib/surface/call.cc')
-rw-r--r--src/core/lib/surface/call.cc59
1 files changed, 40 insertions, 19 deletions
diff --git a/src/core/lib/surface/call.cc b/src/core/lib/surface/call.cc
index e012244b0f..52a7ea0f89 100644
--- a/src/core/lib/surface/call.cc
+++ b/src/core/lib/surface/call.cc
@@ -187,6 +187,7 @@ struct grpc_call {
grpc_closure receiving_slice_ready;
grpc_closure receiving_stream_ready;
grpc_closure receiving_initial_metadata_ready;
+ grpc_closure receiving_trailing_metadata_ready;
uint32_t test_only_last_message_flags;
bool cancelled;
@@ -1079,7 +1080,6 @@ static void post_batch_completion(batch_control* bctl) {
if (bctl->op.send_initial_metadata) {
grpc_metadata_batch_destroy(
-
&call->metadata_batch[0 /* is_receiving */][0 /* is_trailing */]);
}
if (bctl->op.send_message) {
@@ -1087,14 +1087,9 @@ static void post_batch_completion(batch_control* bctl) {
}
if (bctl->op.send_trailing_metadata) {
grpc_metadata_batch_destroy(
-
&call->metadata_batch[0 /* is_receiving */][1 /* is_trailing */]);
}
if (bctl->op.recv_trailing_metadata) {
- grpc_metadata_batch* md =
- &call->metadata_batch[1 /* is_receiving */][1 /* is_trailing */];
- recv_trailing_filter(call, md, GRPC_ERROR_REF(bctl->batch_error));
-
/* propagate cancellation to any interested children */
gpr_atm_rel_store(&call->received_final_op_atm, 1);
parent_call* pc = get_parent_call(call);
@@ -1115,7 +1110,6 @@ static void post_batch_completion(batch_control* bctl) {
}
gpr_mu_unlock(&pc->child_list_mu);
}
-
GRPC_ERROR_UNREF(error);
error = GRPC_ERROR_NONE;
}
@@ -1390,6 +1384,16 @@ static void receiving_initial_metadata_ready(void* bctlp, grpc_error* error) {
finish_batch_step(bctl);
}
+static void receiving_trailing_metadata_ready(void* bctlp, grpc_error* error) {
+ batch_control* bctl = static_cast<batch_control*>(bctlp);
+ grpc_call* call = bctl->call;
+ GRPC_CALL_COMBINER_STOP(&call->call_combiner, "recv_trailing_metadata_ready");
+ grpc_metadata_batch* md =
+ &call->metadata_batch[1 /* is_receiving */][1 /* is_trailing */];
+ recv_trailing_filter(call, md, GRPC_ERROR_REF(error));
+ finish_batch_step(bctl);
+}
+
static void finish_batch(void* bctlp, grpc_error* error) {
batch_control* bctl = static_cast<batch_control*>(bctlp);
grpc_call* call = bctl->call;
@@ -1415,7 +1419,8 @@ static grpc_call_error call_start_batch(grpc_call* call, const grpc_op* ops,
size_t i;
const grpc_op* op;
batch_control* bctl;
- int num_completion_callbacks_needed = 1;
+ bool has_send_ops = false;
+ int num_recv_ops = 0;
grpc_call_error error = GRPC_CALL_OK;
grpc_transport_stream_op_batch* stream_op;
grpc_transport_stream_op_batch_payload* stream_op_payload;
@@ -1521,6 +1526,7 @@ static grpc_call_error call_start_batch(grpc_call* call, const grpc_op* ops,
stream_op_payload->send_initial_metadata.peer_string =
&call->peer_string;
}
+ has_send_ops = true;
break;
}
case GRPC_OP_SEND_MESSAGE: {
@@ -1550,6 +1556,7 @@ static grpc_call_error call_start_batch(grpc_call* call, const grpc_op* ops,
&op->data.send_message.send_message->data.raw.slice_buffer, flags);
stream_op_payload->send_message.send_message.reset(
call->sending_stream.get());
+ has_send_ops = true;
break;
}
case GRPC_OP_SEND_CLOSE_FROM_CLIENT: {
@@ -1570,6 +1577,7 @@ static grpc_call_error call_start_batch(grpc_call* call, const grpc_op* ops,
call->sent_final_op = true;
stream_op_payload->send_trailing_metadata.send_trailing_metadata =
&call->metadata_batch[0 /* is_receiving */][1 /* is_trailing */];
+ has_send_ops = true;
break;
}
case GRPC_OP_SEND_STATUS_FROM_SERVER: {
@@ -1632,6 +1640,7 @@ static grpc_call_error call_start_batch(grpc_call* call, const grpc_op* ops,
}
stream_op_payload->send_trailing_metadata.send_trailing_metadata =
&call->metadata_batch[0 /* is_receiving */][1 /* is_trailing */];
+ has_send_ops = true;
break;
}
case GRPC_OP_RECV_INITIAL_METADATA: {
@@ -1659,7 +1668,7 @@ static grpc_call_error call_start_batch(grpc_call* call, const grpc_op* ops,
stream_op_payload->recv_initial_metadata.peer_string =
&call->peer_string;
}
- num_completion_callbacks_needed++;
+ ++num_recv_ops;
break;
}
case GRPC_OP_RECV_MESSAGE: {
@@ -1681,7 +1690,7 @@ static grpc_call_error call_start_batch(grpc_call* call, const grpc_op* ops,
grpc_schedule_on_exec_ctx);
stream_op_payload->recv_message.recv_message_ready =
&call->receiving_stream_ready;
- num_completion_callbacks_needed++;
+ ++num_recv_ops;
break;
}
case GRPC_OP_RECV_STATUS_ON_CLIENT: {
@@ -1707,11 +1716,16 @@ static grpc_call_error call_start_batch(grpc_call* call, const grpc_op* ops,
call->final_op.client.error_string =
op->data.recv_status_on_client.error_string;
stream_op->recv_trailing_metadata = true;
- stream_op->collect_stats = true;
stream_op_payload->recv_trailing_metadata.recv_trailing_metadata =
&call->metadata_batch[1 /* is_receiving */][1 /* is_trailing */];
- stream_op_payload->collect_stats.collect_stats =
+ stream_op_payload->recv_trailing_metadata.collect_stats =
&call->final_info.stats.transport_stream_stats;
+ GRPC_CLOSURE_INIT(&call->receiving_trailing_metadata_ready,
+ receiving_trailing_metadata_ready, bctl,
+ grpc_schedule_on_exec_ctx);
+ stream_op_payload->recv_trailing_metadata.recv_trailing_metadata_ready =
+ &call->receiving_trailing_metadata_ready;
+ ++num_recv_ops;
break;
}
case GRPC_OP_RECV_CLOSE_ON_SERVER: {
@@ -1732,11 +1746,16 @@ static grpc_call_error call_start_batch(grpc_call* call, const grpc_op* ops,
call->final_op.server.cancelled =
op->data.recv_close_on_server.cancelled;
stream_op->recv_trailing_metadata = true;
- stream_op->collect_stats = true;
stream_op_payload->recv_trailing_metadata.recv_trailing_metadata =
&call->metadata_batch[1 /* is_receiving */][1 /* is_trailing */];
- stream_op_payload->collect_stats.collect_stats =
+ stream_op_payload->recv_trailing_metadata.collect_stats =
&call->final_info.stats.transport_stream_stats;
+ GRPC_CLOSURE_INIT(&call->receiving_trailing_metadata_ready,
+ receiving_trailing_metadata_ready, bctl,
+ grpc_schedule_on_exec_ctx);
+ stream_op_payload->recv_trailing_metadata.recv_trailing_metadata_ready =
+ &call->receiving_trailing_metadata_ready;
+ ++num_recv_ops;
break;
}
}
@@ -1746,13 +1765,15 @@ static grpc_call_error call_start_batch(grpc_call* call, const grpc_op* ops,
if (!is_notify_tag_closure) {
GPR_ASSERT(grpc_cq_begin_op(call->cq, notify_tag));
}
- gpr_ref_init(&bctl->steps_to_complete, num_completion_callbacks_needed);
+ gpr_ref_init(&bctl->steps_to_complete, (has_send_ops ? 1 : 0) + num_recv_ops);
- GRPC_CLOSURE_INIT(&bctl->finish_batch, finish_batch, bctl,
- grpc_schedule_on_exec_ctx);
- stream_op->on_complete = &bctl->finish_batch;
- gpr_atm_rel_store(&call->any_ops_sent_atm, 1);
+ if (has_send_ops) {
+ GRPC_CLOSURE_INIT(&bctl->finish_batch, finish_batch, bctl,
+ grpc_schedule_on_exec_ctx);
+ stream_op->on_complete = &bctl->finish_batch;
+ }
+ gpr_atm_rel_store(&call->any_ops_sent_atm, 1);
execute_batch(call, stream_op, &bctl->start_batch);
done: