| /* |
| * |
| * Copyright 2015, Google Inc. |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions are |
| * met: |
| * |
| * * Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * * Redistributions in binary form must reproduce the above |
| * copyright notice, this list of conditions and the following disclaimer |
| * in the documentation and/or other materials provided with the |
| * distribution. |
| * * Neither the name of Google Inc. nor the names of its |
| * contributors may be used to endorse or promote products derived from |
| * this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| * |
| */ |
| |
| #include <grpc/grpc.h> |
| |
| #include <string.h> |
| |
| #include "src/core/channel/channel_stack.h" |
| #include "src/core/support/string.h" |
| #include "src/core/surface/channel.h" |
| #include "src/core/surface/call.h" |
| #include <grpc/support/alloc.h> |
| #include <grpc/support/log.h> |
| |
| typedef struct { void *unused; } call_data; |
| |
| typedef struct { void *unused; } channel_data; |
| |
| static void call_op(grpc_call_element *elem, grpc_call_element *from_elem, |
| grpc_call_op *op) { |
| GRPC_CALL_LOG_OP(GPR_INFO, elem, op); |
| |
| switch (op->type) { |
| case GRPC_SEND_METADATA: |
| grpc_metadata_batch_destroy(&op->data.metadata); |
| grpc_call_recv_synthetic_status(elem, GRPC_STATUS_UNKNOWN, |
| "Rpc sent on a lame channel."); |
| grpc_call_stream_closed(elem); |
| break; |
| default: |
| break; |
| } |
| |
| op->done_cb(op->user_data, GRPC_OP_ERROR); |
| } |
| |
| static void channel_op(grpc_channel_element *elem, |
| grpc_channel_element *from_elem, grpc_channel_op *op) { |
| switch (op->type) { |
| case GRPC_CHANNEL_GOAWAY: |
| gpr_slice_unref(op->data.goaway.message); |
| break; |
| case GRPC_CHANNEL_DISCONNECT: |
| grpc_client_channel_closed(elem); |
| break; |
| default: |
| break; |
| } |
| } |
| |
| static void init_call_elem(grpc_call_element *elem, |
| const void *transport_server_data) {} |
| |
| static void destroy_call_elem(grpc_call_element *elem) {} |
| |
| static void init_channel_elem(grpc_channel_element *elem, |
| const grpc_channel_args *args, grpc_mdctx *mdctx, |
| int is_first, int is_last) { |
| GPR_ASSERT(is_first); |
| GPR_ASSERT(is_last); |
| } |
| |
| static void destroy_channel_elem(grpc_channel_element *elem) {} |
| |
| static const grpc_channel_filter lame_filter = { |
| call_op, channel_op, sizeof(call_data), init_call_elem, destroy_call_elem, |
| sizeof(channel_data), init_channel_elem, destroy_channel_elem, |
| "lame-client", |
| }; |
| |
| grpc_channel *grpc_lame_client_channel_create(void) { |
| static const grpc_channel_filter *filters[] = {&lame_filter}; |
| return grpc_channel_create_from_filters(filters, 1, NULL, grpc_mdctx_create(), |
| 1); |
| } |