#include <QApplication>
#include <QEvent>
+#include <QDir>
#include <stdlib.h>
#include <stdio.h>
#include <unistd.h>
#include <fcntl.h>
+#include <errno.h>
+#include <string.h>
#include <linux/input.h>
#define DELAY 10
#define JOG_STOP 10020
#define MAX_SHUTTLE_RANGE 7
-void ShuttleThread::init(QObject *parent, QString device)
+void ShuttleThread::init(QObject *parent, const QString &device)
{
m_parent = parent;
m_device = device;
void ShuttleThread::run()
{
kDebug() << "------- STARTING SHUTTLE: " << m_device;
+
/* open file descriptor */
const int fd = KDE_open((char *) m_device.toUtf8().data(), O_RDONLY);
if (fd < 0) {
- fprintf(stderr, "Can't open Jog Shuttle FILE DESCRIPTOR\n");
+ perror("Can't open Jog Shuttle FILE DESCRIPTOR");
return;
}
- EV ev;
+ EV ev[64];
if (ioctl(fd, EVIOCGRAB, 1) < 0) {
fprintf(stderr, "Can't get exclusive access on Jog Shuttle FILE DESCRIPTOR\n");
fd_set readset;
struct timeval timeout;
- int num_warnings = 0;
+ int num_warnings = 0, readResult = 0;
int result, iof = -1;
+ /* get fd settings */
+ if ((iof = fcntl(fd, F_GETFL, 0)) == -1) {
+ fprintf(stderr, "Can't get Jog Shuttle file status\n");
+ close(fd);
+ return;
+ }
+
+#if 0
+ else if (fcntl(fd, F_SETFL, iof | O_NONBLOCK) == -1) {
+ fprintf(stderr, "Can't set Jog Shuttle FILE DESCRIPTOR to O_NONBLOCK and stop thread\n");
+ close(fd);
+ return;
+ }
+#endif
+
/* enter thread loop */
while (!stop_me) {
/* reset the read set */
/* reinit the timeout structure */
timeout.tv_sec = 0;
- timeout.tv_usec = 300000; /* 300 ms */
+ timeout.tv_usec = 400000; /* 400 ms */
- /* do the select */
+ /* do select in blocked mode and wake up after timeout for eval stop_me */
result = select(fd+1, &readset, NULL, NULL, &timeout);
- /* see if there was an error or timeout */
- if (result < 0) {
- // perror("select failed");
+ /* see if there was an error or timeout else process event */
+ if (result < 0 && errno == EINTR) {
+ /* EINTR event catched. This is not a problem - continue processing */
+ kDebug() << strerror(errno) << "\n";
+ /* continue processing */
+ continue;
+ } else if (result < 0) {
+ /* stop thread */
+ stop_me = true;
+ kDebug() << strerror(errno) << "\n";
} else if (result == 0) {
- //puts("TIMEOUT");
+ /* do nothing. reserved for future purposes */
} else {
/* we have input */
if (FD_ISSET(fd, &readset)) {
- /* get fd settings */
- if ((iof = fcntl(fd, F_GETFL, 0)) != -1) {
- /* set fd non blocking */
- fcntl(fd, F_SETFL, iof | O_NONBLOCK);
- /* read input */
- if (read(fd, &ev, sizeof(ev)) < 0) {
- if (num_warnings % 10000 == 0)
- /* should not happen cause select called before */
- fprintf(stderr, "Failed to read event from Jog Shuttle FILE DESCRIPTOR (repeated %d times)\n", num_warnings + 1);
- num_warnings++;
+ /* read input */
+ readResult = read(fd, ev, sizeof(EV) * 64);
+ if (readResult < 0) {
+ if (num_warnings % 10000 == 0) {
+ /* if device is not available anymore - dead or disconnected */
+ fprintf(stderr, "Failed to read event from Jog Shuttle FILE DESCRIPTOR (repeated %d times)\n", num_warnings + 1);
}
-
- /* restore settings */
- if (iof != -1) {
- fcntl(fd, F_SETFL, iof);
+ /* exit if device is not available or the error occurs to long */
+ if (errno == ENODEV) {
+ perror("Failed to read from Jog Shuttle FILE DESCRIPTOR. Stop thread");
+ /* stop thread */
+ stop_me = true;
+ } else if (num_warnings > 1000000) {
+ perror("Failed to read from Jog Shuttle FILE DESCRIPTOR. Limit reached. Stop thread");
+ /* stop thread */
+ stop_me = true;
}
- /* process event */
- handle_event(ev);
- } else {
- fprintf(stderr, "Can't set Jog Shuttle FILE DESCRIPTOR to O_NONBLOCK\n");
+ num_warnings++;
+ } else if (readResult < (int)sizeof(EV)) {
+ fprintf(stderr, "readResult < (int)sizeof(EV)\n");
+ /* stop thread */
+ stop_me = true;
+ } else if (readResult % (int)sizeof(EV) != 0) {
+ fprintf(stderr, "readResult mod (int)sizeof(EV) != 0\n");
+ /* stop thread */
stop_me = true;
+ } else {
+ for (int i = 0; i < readResult / (int)sizeof(EV); i++) {
+ /* process event */
+ handle_event(ev[i]);
+ }
}
}
}
}
+ kDebug() << "------- STOPPING SHUTTLE: ";
/* close the handle and return thread */
close(fd);
}
if (code > 16)
return;
- kDebug() << "Button PRESSED: " << code;
+ //kDebug() << "Button PRESSED: " << code;
QApplication::postEvent(m_parent, new QEvent((QEvent::Type)(KEY_EVENT_OFFSET + code)));
}
}
-JogShuttle::JogShuttle(QString device, QObject *parent) :
+JogShuttle::JogShuttle(const QString &device, QObject *parent) :
QObject(parent)
{
initDevice(device);
stopDevice();
}
-void JogShuttle::initDevice(QString device)
+void JogShuttle::initDevice(const QString &device)
{
if (m_shuttleProcess.isRunning()) {
if (device == m_shuttleProcess.m_device) return;
emit button(e->type() - KEY_EVENT_OFFSET);
}
+QString JogShuttle::enumerateDevice(const QString &device)
+{
+ QDir canonDir(device);
+ //return QDir::canonicalPath(device);
+ return canonDir.canonicalPath();
+}
// #include "jogshuttle.moc"
+
+#include "jogshuttle.moc"
projects / kdenlive / blobdiff