blob: 142c039220de85b6b63d041b5cbf2e754253e70f (
plain)
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
|
/*
*
* Copyright 2017 gRPC authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
#ifndef GRPC_CORE_LIB_CHANNEL_CHANNELZ_REGISTRY_H
#define GRPC_CORE_LIB_CHANNEL_CHANNELZ_REGISTRY_H
#include <grpc/impl/codegen/port_platform.h>
#include "src/core/lib/channel/channel_trace.h"
#include "src/core/lib/channel/channelz.h"
#include "src/core/lib/gprpp/inlined_vector.h"
#include <stdint.h>
namespace grpc_core {
namespace channelz {
// singleton registry object to track all objects that are needed to support
// channelz bookkeeping. All objects share globally distributed uuids.
class ChannelzRegistry {
public:
// To be called in grpc_init()
static void Init();
// To be called in grpc_shutdown();
static void Shutdown();
static intptr_t Register(BaseNode* node) {
return Default()->InternalRegister(node);
}
static void Unregister(intptr_t uuid) { Default()->InternalUnregister(uuid); }
static BaseNode* Get(intptr_t uuid) { return Default()->InternalGet(uuid); }
// Returns the allocated JSON string that represents the proto
// GetTopChannelsResponse as per channelz.proto.
static char* GetTopChannels(intptr_t start_channel_id) {
return Default()->InternalGetTopChannels(start_channel_id);
}
private:
GPRC_ALLOW_CLASS_TO_USE_NON_PUBLIC_NEW
GPRC_ALLOW_CLASS_TO_USE_NON_PUBLIC_DELETE
ChannelzRegistry();
~ChannelzRegistry();
// Returned the singleton instance of ChannelzRegistry;
static ChannelzRegistry* Default();
// globally registers an Entry. Returns its unique uuid
intptr_t InternalRegister(BaseNode* node);
// globally unregisters the object that is associated to uuid. Also does
// sanity check that an object doesn't try to unregister the wrong type.
void InternalUnregister(intptr_t uuid);
// if object with uuid has previously been registered as the correct type,
// returns the void* associated with that uuid. Else returns nullptr.
BaseNode* InternalGet(intptr_t uuid);
char* InternalGetTopChannels(intptr_t start_channel_id);
// protects entities_ and uuid_
gpr_mu mu_;
InlinedVector<BaseNode*, 20> entities_;
};
} // namespace channelz
} // namespace grpc_core
#endif /* GRPC_CORE_LIB_CHANNEL_CHANNELZ_REGISTRY_H */
|
