Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 1 | /* |
| 2 | * |
Craig Tiller | 0605995 | 2015-02-18 08:34:56 -0800 | [diff] [blame] | 3 | * Copyright 2015, Google Inc. |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 4 | * All rights reserved. |
| 5 | * |
| 6 | * Redistribution and use in source and binary forms, with or without |
| 7 | * modification, are permitted provided that the following conditions are |
| 8 | * met: |
| 9 | * |
| 10 | * * Redistributions of source code must retain the above copyright |
| 11 | * notice, this list of conditions and the following disclaimer. |
| 12 | * * Redistributions in binary form must reproduce the above |
| 13 | * copyright notice, this list of conditions and the following disclaimer |
| 14 | * in the documentation and/or other materials provided with the |
| 15 | * distribution. |
| 16 | * * Neither the name of Google Inc. nor the names of its |
| 17 | * contributors may be used to endorse or promote products derived from |
| 18 | * this software without specific prior written permission. |
| 19 | * |
| 20 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| 21 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| 22 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| 23 | * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| 24 | * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| 25 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| 26 | * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| 27 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| 28 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 29 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| 30 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 31 | * |
| 32 | */ |
| 33 | |
Craig Tiller | 42bc87c | 2015-02-23 08:50:19 -0800 | [diff] [blame] | 34 | #include <grpc/grpc.h> |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 35 | |
yangg | 4105e2b | 2015-01-09 14:19:44 -0800 | [diff] [blame] | 36 | #include <string.h> |
| 37 | |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 38 | #include "src/core/channel/channel_stack.h" |
Craig Tiller | 485d776 | 2015-01-23 12:54:05 -0800 | [diff] [blame] | 39 | #include "src/core/support/string.h" |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 40 | #include "src/core/surface/channel.h" |
| 41 | #include "src/core/surface/call.h" |
| 42 | #include <grpc/support/alloc.h> |
| 43 | #include <grpc/support/log.h> |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 44 | |
Craig Tiller | 87d5b19 | 2015-04-16 14:37:57 -0700 | [diff] [blame] | 45 | typedef struct { void *unused; } call_data; |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 46 | |
Craig Tiller | 87d5b19 | 2015-04-16 14:37:57 -0700 | [diff] [blame] | 47 | typedef struct { void *unused; } channel_data; |
yangg | 4105e2b | 2015-01-09 14:19:44 -0800 | [diff] [blame] | 48 | |
Craig Tiller | 06aeea7 | 2015-04-23 10:54:45 -0700 | [diff] [blame] | 49 | static void lame_start_transport_op(grpc_call_element *elem, |
| 50 | grpc_transport_op *op) { |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 51 | GRPC_CALL_LOG_OP(GPR_INFO, elem, op); |
Craig Tiller | be18b8d | 2015-04-22 14:00:47 -0700 | [diff] [blame] | 52 | grpc_transport_op_finish_with_failure(op); |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 53 | } |
| 54 | |
ctiller | f962f52 | 2014-12-10 15:28:27 -0800 | [diff] [blame] | 55 | static void channel_op(grpc_channel_element *elem, |
| 56 | grpc_channel_element *from_elem, grpc_channel_op *op) { |
nnoble | 0c475f0 | 2014-12-05 15:37:39 -0800 | [diff] [blame] | 57 | switch (op->type) { |
| 58 | case GRPC_CHANNEL_GOAWAY: |
| 59 | gpr_slice_unref(op->data.goaway.message); |
| 60 | break; |
Craig Tiller | 8aa09c3 | 2015-02-05 10:17:03 -0800 | [diff] [blame] | 61 | case GRPC_CHANNEL_DISCONNECT: |
| 62 | grpc_client_channel_closed(elem); |
| 63 | break; |
nnoble | 0c475f0 | 2014-12-05 15:37:39 -0800 | [diff] [blame] | 64 | default: |
| 65 | break; |
| 66 | } |
| 67 | } |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 68 | |
| 69 | static void init_call_elem(grpc_call_element *elem, |
Craig Tiller | 06aeea7 | 2015-04-23 10:54:45 -0700 | [diff] [blame] | 70 | const void *transport_server_data, |
| 71 | grpc_transport_op *initial_op) { |
Craig Tiller | 50d9db5 | 2015-04-23 10:52:14 -0700 | [diff] [blame] | 72 | if (initial_op) { |
| 73 | grpc_transport_op_finish_with_failure(initial_op); |
| 74 | } |
| 75 | } |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 76 | |
| 77 | static void destroy_call_elem(grpc_call_element *elem) {} |
| 78 | |
| 79 | static void init_channel_elem(grpc_channel_element *elem, |
| 80 | const grpc_channel_args *args, grpc_mdctx *mdctx, |
| 81 | int is_first, int is_last) { |
| 82 | GPR_ASSERT(is_first); |
| 83 | GPR_ASSERT(is_last); |
| 84 | } |
| 85 | |
Craig Tiller | 87d5b19 | 2015-04-16 14:37:57 -0700 | [diff] [blame] | 86 | static void destroy_channel_elem(grpc_channel_element *elem) {} |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 87 | |
| 88 | static const grpc_channel_filter lame_filter = { |
Craig Tiller | 06aeea7 | 2015-04-23 10:54:45 -0700 | [diff] [blame] | 89 | lame_start_transport_op, channel_op, sizeof(call_data), init_call_elem, |
| 90 | destroy_call_elem, sizeof(channel_data), init_channel_elem, |
| 91 | destroy_channel_elem, "lame-client", |
Craig Tiller | 87d5b19 | 2015-04-16 14:37:57 -0700 | [diff] [blame] | 92 | }; |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 93 | |
nnoble | 0c475f0 | 2014-12-05 15:37:39 -0800 | [diff] [blame] | 94 | grpc_channel *grpc_lame_client_channel_create(void) { |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 95 | static const grpc_channel_filter *filters[] = {&lame_filter}; |
| 96 | return grpc_channel_create_from_filters(filters, 1, NULL, grpc_mdctx_create(), |
| 97 | 1); |
Craig Tiller | 190d360 | 2015-02-18 09:23:38 -0800 | [diff] [blame] | 98 | } |