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
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
|
/*
*
* 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 "qpid/broker/Broker.h"
#include "qpid/sys/posix/check.h"
#include "qpid/broker/Daemon.h"
#include "qpid/log/Statement.h"
#include "qpid/log/Options.h"
#include "qpid/log/Logger.h"
#include "config.h"
#include <boost/filesystem/path.hpp>
#include <boost/filesystem/operations.hpp>
#include <iostream>
#include <fstream>
#include <signal.h>
#include <unistd.h>
using namespace qpid;
using namespace qpid::broker;
using namespace qpid::sys;
using namespace std;
struct DaemonOptions : public qpid::Options {
bool daemon;
bool quit;
bool check;
int wait;
DaemonOptions() : qpid::Options("Daemon options"), daemon(false), quit(false), check(false), wait(10)
{
addOptions()
("daemon,d", optValue(daemon), "Run as a daemon. With --port 0 print actual listening port.")
("wait,w", optValue(wait, "SECONDS"), "Maximum wait for daemon response.")
("check,c", optValue(check), "If a daemon is running print its pid to stdout and return 0.")
("quit,q", optValue(quit), "Stop the running daemon politely.");
}
};
struct QpiddOptions : public qpid::Options {
DaemonOptions daemon;
Broker::Options broker;
qpid::log::Options log;
CommonOptions common;
QpiddOptions() : qpid::Options("Options") {
common.config = "/etc/qpidd.conf";
add(common);
add(broker);
add(daemon);
add(log);
}
void usage() const {
cout << "Usage: qpidd [OPTIONS]" << endl << endl << *this << endl;
};
};
// Globals
shared_ptr<Broker> brokerPtr;
QpiddOptions options;
void handle_signal(int /*signal*/){
QPID_LOG(notice, "Shutting down...");
brokerPtr->shutdown();
}
/** Compute a name for the pid file */
std::string pidFileFn() {
uint16_t port=brokerPtr ? brokerPtr->getPort() : options.broker.port;
string file=(boost::format("qpidd.%d.pid") % port).str();
string pidPath;
if (getuid() == 0) // Use standard pid file for root.
pidPath=Daemon::defaultPidFile(file);
else { // Use $HOME/.qpidd for non-root.
const char* home=getenv("HOME");
if (!home)
throw(Exception("$HOME is not set, cant create $HOME/.qpidd."));
namespace fs=boost::filesystem;
fs::path dir = fs::path(home,fs::native) / fs::path(".qpidd", fs::native);
fs::create_directory(dir);
dir /= file;
pidPath=dir.string();
}
QPID_LOG(debug, "PID file name=" << pidPath);
return pidPath;
}
/** Code for forked parent */
void parent(Daemon& demon) {
uint16_t realPort = demon.wait();
if (options.broker.port == 0)
cout << realPort << endl;
}
/** Code for forked child */
void child(Daemon& demon) {
brokerPtr.reset(new Broker(options.broker));
uint16_t realPort=brokerPtr->getPort();
demon.ready(realPort); // Notify parent.
brokerPtr->run();
}
int main(int argc, char* argv[])
{
// Spelled 'demon' to avoid clash with daemon.h function.
Daemon demon(pidFileFn, options.daemon.wait);
try {
options.parse(argc, argv, options.common.config);
qpid::log::Logger::instance().configure(options.log, argv[0]);
// Options that just print information.
if(options.common.help || options.common.version) {
if (options.common.version)
cout << "qpidd (" << PACKAGE_NAME << ") version "
<< PACKAGE_VERSION << endl;
else if (options.common.help)
options.usage();
return 0;
}
// Stop running daemon
if (options.daemon.quit) {
demon.quit();
return 0;
}
// Query running daemon
if (options.daemon.check) {
pid_t pid = demon.check();
if (pid < 0)
return 1;
else {
cout << pid << endl;
return 0;
}
}
// Starting the broker:
signal(SIGINT, handle_signal);
if (options.daemon.daemon) { // Daemon broker
demon.fork(parent, child);
}
else { // Non-daemon broker.
brokerPtr.reset(new Broker(options.broker));
if (options.broker.port == 0)
cout << uint16_t(brokerPtr->getPort()) << endl;
brokerPtr->run();
}
return 0;
}
catch(const exception& e) {
if (demon.isParent())
cerr << e.what() << endl;
else
QPID_LOG(critical, e.what());
}
return 1;
}
|
