int fb_get_resolution(async_sess_t *sess, sysarg_t *maxx, sysarg_t *maxy)
{
async_exch_t *exch = async_exchange_begin(sess);
int ret = async_req_0_2(exch, FB_GET_RESOLUTION, maxx, maxy);
async_exchange_end(exch);
return ret;
}
int fb_vp_get_dimensions(async_sess_t *sess, vp_handle_t vp, sysarg_t *cols,
sysarg_t *rows)
{
async_exch_t *exch = vp_exchange_begin(sess, vp);
int ret = async_req_0_2(exch, FB_VP_GET_DIMENSIONS, cols, rows);
vp_exchange_end(exch);
return ret;
}
int bd_get_num_blocks(bd_t *bd, aoff64_t *rnb)
{
sysarg_t nb_l;
sysarg_t nb_h;
async_exch_t *exch = async_exchange_begin(bd->sess);
int rc = async_req_0_2(exch, BD_GET_NUM_BLOCKS, &nb_l, &nb_h);
async_exchange_end(exch);
if (rc != EOK)
return rc;
*rnb = (aoff64_t) MERGE_LOUP32(nb_l, nb_h);
return EOK;
}
/** Get a copy of clipboard contents.
*
* Returns a new string that can be deallocated with free().
*
* @param str Here pointer to the newly allocated string is stored.
*
* @return Zero on success or negative error code.
*
*/
int clipboard_get_str(char **str)
{
/* Loop until clipboard read succesful */
while (true) {
async_exch_t *exch = clip_exchange_begin();
sysarg_t size;
sysarg_t tag;
sysarg_t rc = async_req_0_2(exch, CLIPBOARD_CONTENT, &size, &tag);
clip_exchange_end(exch);
if (rc != EOK)
return (int) rc;
char *sbuf;
switch (tag) {
case CLIPBOARD_TAG_NONE:
sbuf = malloc(1);
if (sbuf == NULL)
return ENOMEM;
sbuf[0] = 0;
*str = sbuf;
return EOK;
case CLIPBOARD_TAG_DATA:
sbuf = malloc(size + 1);
if (sbuf == NULL)
return ENOMEM;
exch = clip_exchange_begin();
aid_t req = async_send_1(exch, CLIPBOARD_GET_DATA, tag, NULL);
rc = async_data_read_start(exch, (void *) sbuf, size);
clip_exchange_end(exch);
if ((int) rc == EOVERFLOW) {
/*
* The data in the clipboard has changed since
* the last call of CLIPBOARD_CONTENT
*/
break;
}
if (rc != EOK) {
sysarg_t rc_orig;
async_wait_for(req, &rc_orig);
if (rc_orig == EOK)
return (int) rc;
else
return (int) rc_orig;
}
async_wait_for(req, &rc);
if (rc == EOK) {
sbuf[size] = 0;
*str = sbuf;
}
return rc;
default:
return EINVAL;
}
}
}
