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41
42#include "ossignalconverter_p.h"
43#include <signal.h>
44#include <QTimer>
45#include <stdio.h>
46
47Q_GLOBAL_STATIC(OsSignalConverter, osSignalConverter);
48
49OsSignalConverter* OsSignalConverter::instance()
50{
51 return osSignalConverter();
52}
53
54OsSignalConverter::OsSignalConverter()
55: d(new OsSignalConverterPrivate(this))
56{
57};
58
59OsSignalConverter::~OsSignalConverter()
60{
61}
62
63OsSignalConverterPrivate::OsSignalConverterPrivate(OsSignalConverter* owner)
64: QObject(owner), q(owner), poller(new QTimer(this))
65{
66 trap();
67 connect(poller, SIGNAL(timeout()), this, SLOT(poll()));
68 poller->start(1000);
69}
70
71OsSignalConverterPrivate::~OsSignalConverterPrivate()
72{
73 untrap();
74}
75
76void OsSignalConverterPrivate::trap()
77{
78 signal(SIGINT, handler);
79 signal(SIGTERM, handler);
80#ifdef SIGBREAK
81 signal(SIGBREAK, handler);
82#endif
83#ifdef SIGHUP
84 signal(SIGHUP, handler);
85#endif
86#ifdef SIGQUIT
87 signal(SIGQUIT, handler);
88#endif
89}
90
91void OsSignalConverterPrivate::untrap()
92{
93 signal(SIGINT, SIG_DFL);
94 signal(SIGTERM, SIG_DFL);
95#ifdef SIGBREAK
96 signal(SIGBREAK, SIG_DFL);
97#endif
98#ifdef SIGHUP
99 signal(SIGHUP, SIG_DFL);
100#endif
101#ifdef SIGQUIT
102 signal(SIGQUIT, SIG_DFL);
103#endif
104}
105
106void OsSignalConverterPrivate::handler(int sig)
107{
108 untrap(); //allow 2nd ctrl-c to really kill us
109 terminateRequest = sig;
110}
111
112void OsSignalConverterPrivate::poll()
113{
114 if (terminateRequest) {
115 fprintf(stderr, "\n*** caught signal %d, terminating ***\n", terminateRequest);
116 poller->stop();
117 emit q->terminate();
118 }
119}
120
121sig_atomic_t OsSignalConverterPrivate::terminateRequest;
122

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