QEventDispatcherUNIXPrivate::QEventDispatcherUNIXPrivate()
{
extern Qt::HANDLE qt_application_thread_id;
mainThread = (QThread::currentThreadId() == qt_application_thread_id);
bool pipefail = false;
// initialize the common parts of the event loop
#if defined(Q_OS_NACL) || defined (Q_OS_BLACKBERRY)
// do nothing.
#elif defined(Q_OS_INTEGRITY)
// INTEGRITY doesn't like a "select" on pipes, so use socketpair instead
if (socketpair(AF_INET, SOCK_STREAM, 0, thread_pipe) == -1) {
perror("QEventDispatcherUNIXPrivate(): Unable to create socket pair");
pipefail = true;
} else {
initThreadPipeFD(thread_pipe[0]);
initThreadPipeFD(thread_pipe[1]);
}
#elif defined(Q_OS_VXWORKS)
char name[20];
qsnprintf(name, sizeof(name), "/pipe/qt_%08x", int(taskIdSelf()));
// make sure there is no pipe with this name
pipeDevDelete(name, true);
// create the pipe
if (pipeDevCreate(name, 128 /*maxMsg*/, 1 /*maxLength*/) != OK) {
perror("QEventDispatcherUNIXPrivate(): Unable to create thread pipe device");
pipefail = true;
} else {
if ((thread_pipe[0] = open(name, O_RDWR, 0)) < 0) {
perror("QEventDispatcherUNIXPrivate(): Unable to create thread pipe");
pipefail = true;
} else {
initThreadPipeFD(thread_pipe[0]);
thread_pipe[1] = thread_pipe[0];
}
}
#else
# ifndef QT_NO_EVENTFD
thread_pipe[0] = eventfd(0, EFD_NONBLOCK | EFD_CLOEXEC);
if (thread_pipe[0] != -1)
thread_pipe[1] = -1;
else // fall through the next "if"
# endif
if (qt_safe_pipe(thread_pipe, O_NONBLOCK) == -1) {
perror("QEventDispatcherUNIXPrivate(): Unable to create thread pipe");
pipefail = true;
}
#endif
if (pipefail)
qFatal("QEventDispatcherUNIXPrivate(): Can not continue without a thread pipe");
sn_highest = -1;
}
static int qt_create_pipe(int *pipe)
{
if (pipe[0] != -1)
qt_safe_close(pipe[0]);
if (pipe[1] != -1)
qt_safe_close(pipe[1]);
int pipe_ret = qt_safe_pipe(pipe);
if (pipe_ret != 0) {
qWarning("QProcessPrivate::createPipe: Cannot create pipe %p: %s",
pipe, qPrintable(qt_error_string(errno)));
}
return pipe_ret;
}
QEventDispatcherUNIXPrivate::QEventDispatcherUNIXPrivate()
{
extern Qt::HANDLE qt_application_thread_id;
mainThread = (QThread::currentThreadId() == qt_application_thread_id);
// initialize the common parts of the event loop
if (qt_safe_pipe(thread_pipe, O_NONBLOCK) == -1) {
perror("QEventDispatcherUNIXPrivate(): Unable to create thread pipe");
qFatal("QEventDispatcherUNIXPrivate(): Can not continue without a thread pipe");
}
sn_highest = -1;
interrupt = false;
}
QDnotifySignalThread::QDnotifySignalThread()
: isExecing(false)
{
moveToThread(this);
qt_safe_pipe(qfswd_fileChanged_pipe, O_NONBLOCK);
struct sigaction oldAction;
struct sigaction action;
memset(&action, 0, sizeof(action));
action.sa_sigaction = qfswd_sigio_monitor;
action.sa_flags = SA_SIGINFO;
::sigaction(SIGIO, &action, &oldAction);
if (!(oldAction.sa_flags & SA_SIGINFO))
qfswd_old_sigio_handler = oldAction.sa_handler;
else
qfswd_old_sigio_action = oldAction.sa_sigaction;
}