1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
|
/*
*
* Copyright 2014, 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 <grpc/support/alloc.h>
#include <grpc/support/log.h>
#include <grpc/support/string.h>
typedef struct { void *unused; } call_data;
typedef struct { void *unused; } channel_data;
static void call_op(grpc_call_element *elem, grpc_call_op *op) {
GRPC_CALL_LOG_OP(GPR_INFO, elem, op);
switch (op->type) {
case GRPC_SEND_DEADLINE:
grpc_call_set_deadline(elem, op->data.deadline);
grpc_call_next_op(elem, op);
break;
case GRPC_RECV_METADATA:
grpc_call_recv_metadata(elem, op);
break;
case GRPC_RECV_DEADLINE:
gpr_log(GPR_ERROR, "Deadline received by client (ignored)");
break;
case GRPC_RECV_MESSAGE:
grpc_call_recv_message(elem, op->data.message, op->done_cb,
op->user_data);
break;
case GRPC_RECV_HALF_CLOSE:
grpc_call_recv_finish(elem, 0);
break;
case GRPC_RECV_FINISH:
grpc_call_recv_finish(elem, 1);
break;
case GRPC_RECV_END_OF_INITIAL_METADATA:
grpc_call_client_initial_metadata_complete(elem);
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_op *op) {
switch (op->type) {
case GRPC_ACCEPT_CALL:
gpr_log(GPR_ERROR, "Client cannot accept new calls");
break;
case GRPC_TRANSPORT_CLOSED:
gpr_log(GPR_ERROR, "Transport closed");
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",
};
|
