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/*
*
* 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 "src/core/surface/client.h"
#include "src/core/surface/call.h"
#include "src/core/surface/channel.h"
#include "src/core/support/string.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_RECV_METADATA:
grpc_call_recv_metadata(elem, &op->data.metadata);
break;
case GRPC_RECV_MESSAGE:
grpc_call_recv_message(elem, op->data.message);
op->done_cb(op->user_data, GRPC_OP_OK);
break;
case GRPC_RECV_HALF_CLOSE:
grpc_call_read_closed(elem);
break;
case GRPC_RECV_FINISH:
grpc_call_stream_closed(elem);
break;
case GRPC_RECV_SYNTHETIC_STATUS:
grpc_call_recv_synthetic_status(elem, op->data.synthetic_status.status,
op->data.synthetic_status.message);
break;
default:
GPR_ASSERT(op->dir == GRPC_CALL_DOWN);
grpc_call_next_op(elem, op);
}
}
static void channel_op(grpc_channel_element *elem,
grpc_channel_element *from_elem, grpc_channel_op *op) {
switch (op->type) {
case GRPC_ACCEPT_CALL:
gpr_log(GPR_ERROR, "Client cannot accept new calls");
break;
case GRPC_TRANSPORT_CLOSED:
grpc_client_channel_closed(elem);
break;
case GRPC_TRANSPORT_GOAWAY:
gpr_slice_unref(op->data.goaway.message);
break;
default:
GPR_ASSERT(op->dir == GRPC_CALL_DOWN);
grpc_channel_next_op(elem, op);
}
}
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) {}
const grpc_channel_filter grpc_client_surface_filter = {
call_op, channel_op, sizeof(call_data), init_call_elem, destroy_call_elem,
sizeof(channel_data), init_channel_elem, destroy_channel_elem, "client",
};
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