/*
* The common entry for processing command.
*/
static void
cmd_received(cmd_t *cmd, boolean_t *quit, struct timespec *timeout)
{
boolean_t badcmd, execute;
int cmd_id = CMD_ID(cmd);
execute = B_TRUE;
*quit = B_FALSE;
switch (cmd_id) {
case CMD_QUIT_ID:
*quit = B_TRUE;
return;
case CMD_RESIZE_ID:
/*
* The screen resize signal would trigger this
* command. Destroy existing screen and curses
* resources and then re-init the curses resources.
*/
win_fix_fini();
page_win_destroy();
reg_curses_fini();
if (reg_curses_init(B_FALSE)) {
win_fix_init();
} else {
execute = B_FALSE;
}
timeout_set(timeout, DISP_DEFAULT_INTVAL);
break;
case CMD_REFRESH_ID:
/*
* User hit the hotkey 'R' to refresh current window.
*/
timeout_set(timeout, DISP_DEFAULT_INTVAL);
break;
}
if (execute) {
cmd_execute(cmd, &badcmd);
}
}
/*
* Initialization for libcurses.
*/
boolean_t
reg_curses_init(boolean_t first_load)
{
(void) initscr();
(void) refresh();
(void) start_color();
(void) keypad(stdscr, TRUE);
(void) nonl();
(void) cbreak();
(void) noecho();
(void) curs_set(0);
getmaxyx(stdscr, g_scr_height, g_scr_width);
/*
* Set a window resize signal handler.
*/
(void) signal(SIGWINCH, disp_on_resize);
s_curses_init = B_TRUE;
if ((g_scr_height < 24 || g_scr_width < 80)) {
if (!first_load) {
(void) mvwprintw(stdscr, 0, 0,
"Terminal size is too small.");
(void) mvwprintw(stdscr, 1, 0,
"Please resize it to 80x24 or larger.");
(void) refresh();
} else {
reg_curses_fini();
stderr_print("Terminal size is too small "
"(resize it to 80x24 or larger).\n");
}
dump_write("\n%s\n", "Terminal size is too small.");
dump_write("%s\n", "Please resize it to 80x24 or larger.");
return (B_FALSE);
}
return (B_TRUE);
}
/* ARGSUSED */
static void *
cons_handler(void *arg)
{
int c, cmd_id;
unsigned char ch;
if (!reg_curses_init(B_TRUE)) {
goto L_EXIT;
}
win_fix_init();
/*
* Excute "home" command. It shows the NumaTop default page.
*/
disp_go_home();
for (;;) {
FD_ZERO(&s_cons_ctl.fds);
FD_SET(STDIN_FILENO, &s_cons_ctl.fds);
FD_SET(s_cons_ctl.pipe[0], &s_cons_ctl.fds);
/*
* Wait one character from "stdin" or pipe.
*/
if (select(s_cons_ctl.pipe[0] + 1, &s_cons_ctl.fds,
NULL, NULL, NULL) > 0) {
if (FD_ISSET(s_cons_ctl.pipe[0], &s_cons_ctl.fds)) {
if (read(s_cons_ctl.pipe[0], &ch, 1) == 1) {
/*
* Character is from pipe.
*/
if (ch == PIPE_CHAR_QUIT) {
/*
* Received a QUIT notification,
* "console thread" will be quit
*/
debug_print(NULL, 2, "cons: "
"received PIPE_CHAR_QUIT\n");
break;
}
if (ch == PIPE_CHAR_RESIZE) {
/*
* Send the "RESIZE" command
* to "display thread".
*/
(void) pthread_mutex_lock(
&s_disp_ctl.mutex);
CMD_ID_SET(&s_disp_ctl.cmd,
CMD_RESIZE_ID);
dispthr_flagset_nolock(DISP_FLAG_CMD);
(void) pthread_mutex_unlock(
&s_disp_ctl.mutex);
}
}
} else {
/*
* Character is from STDIN.
*/
if ((c = getch()) == ERR) {
/*
* It's possile if the associated
* terminal is lost.
*/
debug_print(NULL, 2, "cons: "
"getch() failed.\n");
break;
}
ch = tolower((unsigned char)c);
dump_write("\n<-- User hit the key '%c' "
"(ascii = %d) -->\n", ch, (int)ch);
cmd_id = cmd_id_get(ch);
if (cmd_id != CMD_INVALID_ID) {
/*
* The character is a command. Send
* the command to 'disp thread'.
*/
(void) pthread_mutex_lock(
&s_disp_ctl.mutex);
CMD_ID_SET(&s_disp_ctl.cmd, cmd_id);
dispthr_flagset_nolock(DISP_FLAG_CMD);
(void) pthread_mutex_unlock(
&s_disp_ctl.mutex);
} else {
/*
* Hit the keys 'UP'/'DOWN'/'ENTER'
*/
switch (ch) {
case 2: /* KEY DOWN */
dispthr_flagset_lock(
DISP_FLAG_SCROLLDOWN);
break;
case 3: /* KEY UP */
dispthr_flagset_lock(
DISP_FLAG_SCROLLUP);
break;
case 13: /* enter. */
dispthr_flagset_lock(
DISP_FLAG_SCROLLENTER);
break;
default:
break;
}
}
}
}
}
reg_curses_fini();
L_EXIT:
debug_print(NULL, 2, "cons thread is exiting\n");
return (NULL);
}
