/* Restore the app's timer */
(void)setitimer(ITIMER_REAL, &apptimer, NULL);
timerflag = FALSE;
} /* stop_read_timer */
#endif /* __linux__ */
int cygDeviceInputStream_readDeviceOneByteNC
(JNIEnv *jenv, jobject jobj) {
jclass jc;
jclass ec;
jfieldID jf;
jint fd = -1;
int rc;
int dc;
char buf[1];
jfieldID tmof;
int tmo;
int serrno;
// Get the exception class.
ec = (*jenv)->FindClass(jenv, "java/io/IOException");
assert(ec);
// Get the file descriptor.
jc = (*jenv)->GetObjectClass(jenv, jobj);
assertexc(jc);
jf = (*jenv)->GetFieldID(jenv, jc, "fd", "I");
assertexc(jf);
fd = (*jenv)->GetIntField(jenv, jobj, jf);
if (fd == -1) {
(*jenv)->ThrowNew(jenv, ec, "");
}
tmof = (*jenv)->GetFieldID(jenv, jc, "tmo", "I");
assert(tmof);
tmo = (*jenv)->GetIntField(jenv, jobj, tmof);
#ifdef QNX
// Read data - QNX with timeout
if (tmo <100 & tmo>0) {
tmo=100;
}
dc=readcond(fd, buf, 1, 1, 0, tmo/100); //10th of a second instead of microSecs
if (dc<1) {
//dc=-1; //return fake error
}
#endif /* QNX */
#if defined(__linux__) || defined(__osx__)
// Start the timer.
timeoutOccurred = FALSE;
if (tmo > 0)
start_read_timer(tmo);
// Read data.
buf[0] = 0;
dc = read(fd, buf, 1);
serrno = errno;
// Stop the timer.
if (tmo > 0)
stop_read_timer();
if (dc < 0 && !(serrno == EINTR || serrno == EAGAIN)) {
(*jenv)->ThrowNew(jenv, ec, "");
}
#endif /* __linux__ */
// If timeout had occurred, or if nil data was received, return -1.
if (dc <= 0)
return -1;
return (int)(unsigned char)buf[0];
} /* cygDeviceInputStream_readDeviceOneByteNC */
void SerielleSchnittstelle::empfangeDaten(void* buf, ssize_t nbyte)
{
int fileDescriptor;
// pthread_mutex_lock(&mutex);
fileDescriptor = open(DEVICE, O_RDWR | O_NOCTTY);
readcond(fileDescriptor, buf, nbyte, nbyte, 1, 0);
close(fileDescriptor);
// pthread_mutex_unlock(&mutex);
}
int RS232_1::readMsg(char* rbuf) {
int rc = readcond(fd, rbuf, sizeof(rbuf), 1, 0, 10);
if(rc <= 0) {
if(errno == EAGAIN || rc == 0){
#ifdef DEBUG_RS232
printf("Debug RS232_1: Timeout or EAGAIN\n");
#endif
return 0;
} else {
printf("recieving from devfile1 failed\n");
return -1;
}
}
return rc;
}
/* Restore the app's timer */
(void)setitimer(ITIMER_REAL, &apptimer, NULL);
timerflag = FALSE;
} /* stop_read_timer */
#endif /* __linux__ */
int cygDeviceInputStream_readDeviceOneByteNC
(JNIEnv *jenv, jobject jobj) {
jclass jc;
jclass ec;
jfieldID jf;
jint fd = -1;
int rc;
int dc;
char buf[1];
jfieldID tmof;
int tmo;
int serrno;
// Get the exception class.
ec = (*jenv)->FindClass(jenv, "java/io/IOException");
assert(ec);
// Get the file descriptor.
jc = (*jenv)->GetObjectClass(jenv, jobj);
assertexc(jc);
jf = (*jenv)->GetFieldID(jenv, jc, "fd", "I");
assertexc(jf);
fd = (*jenv)->GetIntField(jenv, jobj, jf);
if (fd == -1) {
(*jenv)->ThrowNew(jenv, ec, "");
}
tmof = (*jenv)->GetFieldID(jenv, jc, "tmo", "I");
assert(tmof);
tmo = (*jenv)->GetIntField(jenv, jobj, tmof);
#ifdef QNX
// Read data - QNX with timeout
if (tmo <100 & tmo>0) {
tmo=100;
}
dc=readcond(fd, buf, 1, 1, 0, tmo/100); //10th of a second instead of microSecs
if (dc<1) {
//dc=-1; //return fake error
}
#endif /* QNX */
#if defined(__linux__) || defined(__osx__)
// Start the timer.
timeoutOccurred = FALSE;
if (tmo > 0)
start_read_timer(tmo);
// Read data.
buf[0] = 0;
dc = read(fd, buf, 1);
serrno = errno;
// Stop the timer.
if (tmo > 0)
stop_read_timer();
if (dc < 0 && !(serrno == EINTR || serrno == EAGAIN)) {
(*jenv)->ThrowNew(jenv, ec, "");
}
#endif /* __linux__ */
// If timeout had occurred, or if nil data was received, return -1.
if (dc <= 0)
return -1;
return (int)(unsigned char)buf[0];
} /* cygDeviceInputStream_readDeviceOneByteNC */
int cygDeviceInputStream_readDeviceNC
(JNIEnv *jenv, jobject jobj, jbyteArray jba, jint off, jint len) {
jclass jc;
jfieldID jf;
jint fd = -1;
int rc;
int dc = 0;
char *cbuf;
jfieldID tmof;
int tmo;
jfieldID tmoDonef;
cbuf = malloc(len);
assert(cbuf);
// Get the file descriptor.
jc = (*jenv)->GetObjectClass(jenv, jobj);
assert(jc);
jf = (*jenv)->GetFieldID(jenv, jc, "fd", "I");
assert(jf);
fd = (*jenv)->GetIntField(jenv, jobj, jf);
if (fd == -1) {
return -1;
}
tmof = (*jenv)->GetFieldID(jenv, jc, "tmo", "I");
assert(tmof);
tmoDonef = (*jenv)->GetFieldID(jenv, jc, "tmoDone", "Z");
assert(tmoDonef);
tmo = (*jenv)->GetIntField(jenv, jobj, tmof);
#ifdef QNX
// Read data - QNX with timeout
if (tmo <100 & tmo>0) {
tmo=100;
}
dc=readcond(fd, cbuf, len, len, tmo/100, tmo/100); //10th of a second instead of microSecs
if (dc<len) {
(*jenv)->SetBooleanField(jenv, jobj, tmoDonef, (jboolean)JNI_TRUE);
//dc=-1; //return fake error
}
#endif /* QNX */
#if defined(__linux__) || defined(__osx__)
// Start the timer.
timeoutOccurred = FALSE;
if (tmo > 0)
start_read_timer(tmo);
//Read data
dc = read(fd, cbuf, len);
// If the timer had already expired, set the field tmoDone.
// Else, stop the timer.
if (timeoutOccurred) {
dc = 0; // Bug fix for PR#117959
(*jenv)->SetBooleanField(jenv, jobj, tmoDonef, (jboolean)JNI_TRUE);
}
if (tmo > 0)
stop_read_timer();
#endif /*__linux__*/
// Copy back the data into the java buffer.
if (dc > 0)
(*jenv)->SetByteArrayRegion(jenv, jba, off, dc, (jbyte*)cbuf);
free(cbuf);
return dc;
} /* cygDeviceInputStream_readDeviceNC */
