/**
* \brief Init of input history buffer
*
* \param ihb ... input history buffer
* \param lines ... number of lines
* \param lenght ... number of characters per line
*
* This is the init-function of the input history buffer. It allocates the
* history buffer.
*/
int
contxt_ihb_init(contxt_ihb_t *ihb, int lines, int length)
{
if (lines < 2)
lines = 2;
if (length < 2)
length = 2;
/* consider terminating '\0' */
length++;
ihb->lines = lines;
ihb->first = 0;
ihb->last = 0;
ihb->length = length;
/* allocate history buffer */
if (!(ihb->buffer = malloc(lines*length)))
{
LOGl("no mem for ihb->head");
return -L4_ENOMEM;
}
/* empty whole history buffer */
memset(ihb->buffer, 0, lines*length);
return 0;
}
/* init. a termstate, does not malloc term->spec,
* but term->text and term->attrib.
*/
int init_termstate(termstate_t * term, int w, int h, int hist)
{
term->w = w;
term->echo = 1;
term->autorepeat = 1;
term->autowrap = 1;
term->term_mode = VT100MODE_COOKED;
term->origin_mode = VT100_ORIGIN_GLOBAL;
term->insert_mode = 0;
term->keylist_next_write= 0;
term->keylist_next_read = 0;
// term->key_pending = 0;
// term->__key_init = 0;
term->keysem = L4SEMAPHORE_LOCKED;
term->keybufsem = L4SEMAPHORE_UNLOCKED;
term->__shift = 0;
term->__alt = 0;
term->__altgr = 0;
term->__ctrl = 0;
term->__keydown = 0;
term->returns = 0;
term->hist_len = 0;
term->phys_h = h;
term->virt_h = term->phys_h + hist;
term->phys_off = 0;
term->vis_off = 0;
term->cur_x = 0;
term->cur_y = 0;
term->attrib_mode = pack_attribs(DEFAULT_FG, DEFAULT_BG, 1);
term->inverse = 0;
term->decscnm = 0;
term->esc_state = ESnormal;
term->used_par = 0;
term->cursor_vis = 1;
term->cur_stored_x = 0;
term->cur_stored_y = 0;
term->cur_stored_attr = term->attrib_mode;
term->newline = 1;
term->ques = 0;
term->scroll_top = 0;
term->scroll_bottom = term->phys_h - 1;
term->tab_last = -1;
term->select_list = NULL;
LOG("cols:%d, lines:%d, hist:%d", term->w, term->phys_h, hist);
free(term->text);
term->text = malloc(term->w * term->virt_h);
if (! term->text)
{
LOGl("no mem for text (%d)", term->w * term->virt_h);
return -1;
}
memset(term->text, ' ', term->w * term->virt_h);
free(term->attrib);
term->attrib = malloc(term->w * term->virt_h);
if (! term->attrib)
{
LOGl("no mem for attrib (%d)", term->w * term->virt_h);
free(term->text);
return -2;
}
memset(term->attrib, term->attrib_mode, term->w * term->virt_h);
return 0;
}