diff options
| -rw-r--r-- | src/core/ext/transport/cronet/transport/cronet_transport.c | 20 |
1 files changed, 16 insertions, 4 deletions
diff --git a/src/core/ext/transport/cronet/transport/cronet_transport.c b/src/core/ext/transport/cronet/transport/cronet_transport.c index 5bb085195c..df160aaaf6 100644 --- a/src/core/ext/transport/cronet/transport/cronet_transport.c +++ b/src/core/ext/transport/cronet/transport/cronet_transport.c @@ -218,8 +218,11 @@ static void on_write_completed(cronet_bidirectional_stream *stream, static void process_recv_message(stream_obj *s, const uint8_t *recv_data) { gpr_slice read_data_slice = gpr_slice_malloc((uint32_t)s->total_read_bytes); uint8_t *dst_p = GPR_SLICE_START_PTR(read_data_slice); - memcpy(dst_p, recv_data, (size_t)s->total_read_bytes); - gpr_slice_buffer_add(&s->read_slice_buffer, read_data_slice); + if (s->total_read_bytes > 0) { + // Only copy if there is non-zero number of bytes + memcpy(dst_p, recv_data, (size_t)s->total_read_bytes); + gpr_slice_buffer_add(&s->read_slice_buffer, read_data_slice); + } grpc_slice_buffer_stream_init(&s->sbs, &s->read_slice_buffer, 0); *s->recv_message = (grpc_byte_buffer *)&s->sbs; } @@ -347,8 +350,17 @@ static void next_recv_step(stream_obj *s, enum e_caller caller) { if (grpc_cronet_trace) { gpr_log(GPR_DEBUG, "R: cronet_bidirectional_stream_read()"); } - cronet_bidirectional_stream_read(s->cbs, (char *)s->read_buffer, - s->remaining_read_bytes); + if (s->remaining_read_bytes > 0) { + cronet_bidirectional_stream_read(s->cbs, (char *)s->read_buffer, + s->remaining_read_bytes); + } else { + // Calling the closing callback directly since this is a 0 byte read + // for an empty message. + process_recv_message(s, NULL); + enqueue_callbacks(s->callback_list[CB_RECV_MESSAGE]); + invoke_closing_callback(s); + set_recv_state(s, CRONET_RECV_CLOSED); + } } } break; |