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
|
/*
*
* Copyright 2016, 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.
*
*/
/*
* A collection of 'macros' that help navigating the grpc object hierarchy
* Not intended to be robust for main-line code, often cuts across abstraction
* boundaries.
*/
#include <stdio.h>
#include "src/core/ext/filters/client_channel/client_channel.h"
#include "src/core/ext/transport/chttp2/transport/internal.h"
#include "src/core/lib/channel/connected_channel.h"
#include "src/core/lib/surface/call.h"
void grpc_summon_debugger_macros() {}
grpc_stream *grpc_transport_stream_from_call(grpc_call *call) {
grpc_call_stack *cs = grpc_call_get_call_stack(call);
for (;;) {
grpc_call_element *el = grpc_call_stack_element(cs, cs->count - 1);
if (el->filter == &grpc_client_channel_filter) {
grpc_subchannel_call *scc = grpc_client_channel_get_subchannel_call(el);
if (scc == NULL) {
fprintf(stderr, "No subchannel-call");
return NULL;
}
cs = grpc_subchannel_call_get_call_stack(scc);
} else if (el->filter == &grpc_connected_filter) {
return grpc_connected_channel_get_stream(el);
} else {
fprintf(stderr, "Unrecognized filter: %s", el->filter->name);
return NULL;
}
}
}
grpc_chttp2_stream *grpc_chttp2_stream_from_call(grpc_call *call) {
return (grpc_chttp2_stream *)grpc_transport_stream_from_call(call);
}
|
