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
|
/*
*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.
*
*/
#include "types.h"
#include "Event.h"
#include "Cpg.h"
#include "qpid/framing/Buffer.h"
#include "qpid/framing/AMQFrame.h"
#include <ostream>
#include <iterator>
#include <algorithm>
namespace qpid {
namespace cluster {
using framing::Buffer;
const size_t Event::OVERHEAD = sizeof(uint8_t) + sizeof(uint64_t) + sizeof(uint32_t);
Event::Event(EventType t, const ConnectionId& c, size_t s, uint32_t i)
: type(t), connectionId(c), size(s), data(RefCountedBuffer::create(s)), id(i) {}
Event Event::delivered(const MemberId& m, void* d, size_t s) {
Buffer buf(static_cast<char*>(d), s);
EventType type((EventType)buf.getOctet());
ConnectionId connection(m, reinterpret_cast<Connection*>(buf.getLongLong()));
uint32_t id = buf.getLong();
assert(buf.getPosition() == OVERHEAD);
Event e(type, connection, s-OVERHEAD, id);
memcpy(e.getData(), static_cast<char*>(d)+OVERHEAD, s-OVERHEAD);
return e;
}
Event Event::control(const framing::AMQBody& body, const ConnectionId& cid, uint32_t id) {
framing::AMQFrame f(body);
Event e(CONTROL, cid, f.size(), id);
Buffer buf(e);
f.encode(buf);
return e;
}
void Event::mcast (const Cpg::Name& name, Cpg& cpg) const {
char header[OVERHEAD];
Buffer b(header, OVERHEAD);
b.putOctet(type);
b.putLongLong(reinterpret_cast<uint64_t>(connectionId.getPointer()));
b.putLong(id);
iovec iov[] = { { header, OVERHEAD }, { const_cast<char*>(getData()), getSize() } };
cpg.mcast(name, iov, sizeof(iov)/sizeof(*iov));
}
Event::operator Buffer() const {
return Buffer(const_cast<char*>(getData()), getSize());
}
static const char* EVENT_TYPE_NAMES[] = { "data", "control" };
std::ostream& operator << (std::ostream& o, const Event& e) {
o << "[event " << e.getConnectionId() << "/" << e.getId()
<< " " << EVENT_TYPE_NAMES[e.getType()]
<< " " << e.getSize() << " bytes]";
return o;
}
}} // namespace qpid::cluster
|
