int io_write (resmgr_context_t *ctp, io_write_t *msg, RESMGR_OCB_T *ocb)
{
int status;
if ((status = iofunc_write_verify(ctp, msg, ocb, NULL)) != EOK)
return (status);
if ((msg->i.xtype & _IO_XTYPE_MASK) != _IO_XTYPE_NONE)
return(ENOSYS);
/* set up the number of bytes (returned by client's write()) */
_IO_SET_WRITE_NBYTES (ctp, msg->i.nbytes);
/*
* Reread the data from the sender's message buffer.
* We're not assuming that all of the data fit into the
* resource manager library's receive buffer.
*/
resmgr_msgread(ctp, buffer, min(msg->i.nbytes, 4095), sizeof(msg->i));
buffer[min(msg->i.nbytes, 4095)] = '\0'; /* just in case the text is not NULL terminated */
ocb->offset = 0;
attr.nbytes = strlen (buffer)+1;
printf("%s\n", buffer);
if (msg->i.nbytes > 0)
ocb->attr->flags |= IOFUNC_ATTR_MTIME | IOFUNC_ATTR_CTIME;
return (_RESMGR_NPARTS (0));
}
int io_write(resmgr_context_t *ctp, io_write_t *msg, iofunc_ocb_t *ocb)
{
LOCK(resource_mutex);
printf("IO write activated\n");
// set data to return
_IO_SET_WRITE_NBYTES(ctp, msg->i.nbytes);
int nBytes = msg->i.nbytes + 1;
char *buf = (char *)malloc(nBytes * sizeof(char));
if (!buf)
RETURN_UNLOCK(ENOMEM, resource_mutex);
resmgr_msgread(ctp, buf, nBytes, sizeof(msg->i));
buf[msg->i.nbytes] = '\0';
printf("Received %d bytes = \"%s\"\n", msg->i.nbytes, buf);
int rcvid = fifo_rem_blocked_id(fifoHandler);
if(rcvid != -1)
{
printf("Found blocked id, sending string '%s' with %i bytes\n", buf, nBytes);
MsgReply(rcvid, nBytes, buf, nBytes);
free(buf);
RETURN_UNLOCK(_RESMGR_NPARTS(0), resource_mutex);
}
fifo_add_string(fifoHandler, buf);
free(buf);
RETURN_UNLOCK(_RESMGR_NPARTS(0), resource_mutex);
}
int
_spi_iomsg_write(resmgr_context_t *ctp, io_msg_t *msg, spi_ocb_t *ocb)
{
spi_msg_t *spimsg = (spi_msg_t *)msg;
uint8_t *buf;
int nbytes, msglen, status;
SPIDEV *drvhdl = (SPIDEV *)ocb->hdr.attr;
spi_dev_t *dev = drvhdl->hdl;
uint16_t chip = spimsg->device & SPI_DEV_ID_MASK;
/* check if message buffer is too short */
nbytes = spimsg->xlen;
if (nbytes <= 0) {
_IO_SET_WRITE_NBYTES(ctp, 0);
return _RESMGR_NPARTS(0);
}
msglen = nbytes + sizeof(spi_msg_t);
if (msglen > ctp->msg_max_size) {
if (dev->buflen < msglen) {
dev->buflen = msglen;
if (dev->buf)
free(dev->buf);
if ((dev->buf = malloc(dev->buflen)) == NULL) {
dev->buflen = 0;
return ENOMEM;
}
}
status = resmgr_msgread(ctp, dev->buf, msglen, 0);
if (status < 0)
return errno;
if (status < msglen)
return EFAULT;
buf = dev->buf;
}
else
buf = (uint8_t *)msg;
if (chip == SPI_DEV_ID_NONE)
chip = ocb->chip;
buf = dev->funcs->xfer(drvhdl, _SPI_DEV_WRITE(chip), buf + sizeof(spi_msg_t), &nbytes);
if (nbytes == 0)
return EAGAIN;
if (nbytes > 0) {
_IO_SET_WRITE_NBYTES(ctp, nbytes);
return _RESMGR_NPARTS(0);
}
return EIO;
}
int io_write (resmgr_context_t *ctp, io_write_t *msg, RESMGR_OCB_T *ocb){
char *buf;
/* set up the number of bytes (returned by client's write()) */
_IO_SET_WRITE_NBYTES (ctp, msg->i.nbytes);
buf = (char *) malloc(msg->i.nbytes + 1);
if (buf == NULL)
return(ENOMEM);
/*
* Reread the data from the sender's message buffer.
* We're not assuming that all of the data fit into the
* resource manager library's receive buffer.
*/
resmgr_msgread(ctp, buf, msg->i.nbytes, sizeof(msg->i));
buf [msg->i.nbytes] = '\0'; /* just in case the text is not NULL terminated */
printf ("Received %d bytes = '%s'\n", msg -> i.nbytes, buf);
/* Set the dir var for counter thread according to the command */
if(!strncmp(buf, "up", 2)){
/* Count upwards */
pthread_mutex_lock(&lock);
counter_dir = DIR_UP;
pthread_mutex_unlock(&lock);
}else if(!strncmp(buf,"down", 4)){
/* Count downwards */
pthread_mutex_lock(&lock);
counter_dir = DIR_DOWN;
pthread_mutex_unlock(&lock);
}else if(!strncmp(buf, "stop", 4)){
/* Stop counting */
pthread_mutex_lock(&lock);
counter_dir = DIR_NONE;
pthread_mutex_unlock(&lock);
}else{
// do nothing
}
free(buf);
return (_RESMGR_NPARTS (0));
}
int
io_write( resmgr_context_t *ctp, io_write_t *msg, RESMGR_OCB_T *ocb)
{
int status;
char *buf;
if((status = iofunc_write_verify(ctp, msg, ocb, NULL)) != EOK )
return(status);
if((msg->i.xtype & _IO_XTYPE_MASK) != _IO_XTYPE_NONE)
return(ENOSYS);
_IO_SET_WRITE_NBYTES(ctp, msg->i.nbytes);
buf = (char *)malloc(msg->i.nbytes + 1);
if( buf == NULL)
return(ENOMEM);
/*
* reread the data from the sender's message buffer.
* We're not assuming that all of the data fit into the
* resource manager library's receive buffer.
*/
if( (status = resmgr_msgread(ctp, buf, msg->i.nbytes, sizeof(msg->i))) == -1){
return(ENOSYS);
}
fprintf(stderr,"_ics660-drvr: bytes attemted: %d bytes received %d\n",msg->i.nbytes,status);
buf[msg->i.nbytes] = '\0'; //just in case text is not NULL terminated
memcpy((int *)ics660->mem1,buf,(size_t)msg->i.nbytes);
free(buf);
if(msg->i.nbytes > 0)
ocb->attr->flags |= IOFUNC_ATTR_MTIME | IOFUNC_ATTR_CTIME;
return(_RESMGR_NPARTS(0));
}
int
io_write (resmgr_context_t *ctp, io_write_t *msg, RESMGR_OCB_T *ocb)
{
int status;
int nb;
if (optv) {
printf ("%s: in io_write, of %d bytes\n", progname, msg->i.nbytes);
}
if ((status = iofunc_write_verify(ctp, msg, ocb, NULL)) != EOK)
return (status);
// No special xtypes
if ((msg->i.xtype & _IO_XTYPE_MASK) != _IO_XTYPE_NONE) {
return(ENOSYS);
}
if( msg->i.nbytes == ctp->info.msglen - (ctp->offset + sizeof(*msg) ))
{
/* have all the data */
char *buf;
buf = (char *)(msg+1);
nb = write( STDOUT_FILENO , buf, msg->i.nbytes ); // fd 1 is stdout
if( -1 == nb )
return errno;
} else
{
#if 0
char *buf;
buf = malloc( msg->i.nbytes );
if (NULL == buf )
return ENOMEM;
nb = resmgr_msgread(ctp, buf, msg->i.nbytes, sizeof(*msg));
nb = write(1, buf, nb ); // fd 1 is stdout
free(buf);
if( -1 == nb )
return errno;
#else
char buf[1000]; // my hardware buffer
int count, bytes;
count = 0;
while ( count < msg->i.nbytes )
{
bytes = resmgr_msgread( ctp, buf, 1000, count + sizeof(*msg ));
if( bytes == -1 )
return errno;
bytes = write( 1, buf, bytes ); // fd 1 is standard out
if( bytes == -1 )
{
if (!count )
return errno;
else
break;
}
count += bytes;
}
nb = count;
#endif
}
_IO_SET_WRITE_NBYTES (ctp, nb);
if (msg->i.nbytes > 0)
ocb->attr->flags |= IOFUNC_ATTR_MTIME | IOFUNC_ATTR_CTIME;
return (_RESMGR_NPARTS (0));
}
