WebSVN – HelenOS – Diff – /branches/tracing/kernel/generic/src/console/kconsole.c



 
SPINLOCK_INITIALIZE(cmd_lock);  /**< Lock protecting command list. */
LIST_INITIALIZE(cmd_head);      /**< Command list. */
 
static wchar_t history[KCONSOLE_HISTORY][MAX_CMDLINE] = {};
static size_t history_pos = 0;
 
/** Initialize kconsole data structures
 *
 * This is the most basic initialization, almost no
 * other kernel subsystem is ready yet.

    spinlock_unlock(&cmd_lock);
    return true;
}
 
/** Print count times a character */
static void print_cc(wchar_t ch, size_t count)
{
    size_t i;
    for (i = 0; i < count; i++)
        putchar(ch);
}
 
/** Try to find a command beginning with prefix */
static const char *cmdtab_search_one(const char *name, link_t **startpos)
{
    size_t namelen = str_length(name);
   
    spinlock_lock(&cmd_lock);
   
    if (*startpos == NULL)
        *startpos = cmd_head.next;

 */
static int cmdtab_compl(char *input, size_t size)
{
    const char *name = input;
   
    size_t found = 0;
    link_t *pos = NULL;
    const char *hint;
    char output[MAX_CMDLINE];
   
    output[0] = 0;

 
static wchar_t *clever_readline(const char *prompt, indev_t *indev)
{
    printf("%s> ", prompt);
   
    size_t position = 0;
    wchar_t *current = history[history_pos];
    current[0] = 0;
   
    while (true) {
        wchar_t ch = indev_pop_character(indev);

            if (position == 0)
                continue;
           
            /* Find the beginning of the word
               and copy it to tmp */
            size_t beg;
            for (beg = position - 1; (beg > 0) && (!isspace(current[beg]));
                beg--);
           
            if (isspace(current[beg]))
                beg++;

            }
           
            /* We have a hint */
           
            size_t off = 0;
            size_t i = 0;
            while ((ch = str_decode(tmp, &off, STR_NO_LIMIT)) != 0) {
                if (!wstr_linsert(current, ch, position + i, MAX_CMDLINE))
                    break;
                i++;
            }

        cmd_info_t *hlp = list_get_instance(cur, cmd_info_t, link);
        spinlock_lock(&hlp->lock);
       
        if (str_lcmp(hlp->name, cmdline + start,
            max(str_length(hlp->name),
            str_nlength(cmdline + start, (size_t) (end - start) - 1))) == 0) {
            cmd = hlp;
            break;
        }
       
        spinlock_unlock(&hlp->lock);

     * converted to those specified in the cmd info
     * structure.
     */
   
    bool error = false;
    size_t i;
    for (i = 0; i < cmd->argc; i++) {
        start = end;
        if (!parse_argument(cmdline, size, &start, &end)) {
            printf("Too few arguments.\n");
            spinlock_unlock(&cmd->lock);

    else
        printf("Type \"exit\" to leave the console.\n");
   
    while (true) {
        wchar_t *tmp = clever_readline((char *) prompt, stdin);
        size_t len = wstr_length(tmp);
        if (!len)
            continue;
       
        char cmdline[STR_BOUNDS(MAX_CMDLINE)];
        wstr_nstr(cmdline, tmp, STR_BOUNDS(MAX_CMDLINE));

Rev 4377	Rev 4692
Line 84...	Line 84...
84		84
85	SPINLOCK_INITIALIZE(cmd_lock); /*< Lock protecting command list. /	85	SPINLOCK_INITIALIZE(cmd_lock); /*< Lock protecting command list. /
86	LIST_INITIALIZE(cmd_head); /*< Command list. /	86	LIST_INITIALIZE(cmd_head); /*< Command list. /
87		87
88	static wchar_t history[KCONSOLE_HISTORY][MAX_CMDLINE] = {};	88	static wchar_t history[KCONSOLE_HISTORY][MAX_CMDLINE] = {};
89	static count_t history_pos = 0;	89	static size_t history_pos = 0;
90		90
91	/** Initialize kconsole data structures	91	/** Initialize kconsole data structures
92	*	92	*
93	* This is the most basic initialization, almost no	93	* This is the most basic initialization, almost no
94	* other kernel subsystem is ready yet.	94	* other kernel subsystem is ready yet.
Line 157...	Line 157...
157	spinlock_unlock(&cmd_lock);	157	spinlock_unlock(&cmd_lock);
158	return true;	158	return true;
159	}	159	}
160		160
161	/** Print count times a character */	161	/** Print count times a character */
162	static void print_cc(wchar_t ch, count_t count)	162	static void print_cc(wchar_t ch, size_t count)
163	{	163	{
164	count_t i;	164	size_t i;
165	for (i = 0; i < count; i++)	165	for (i = 0; i < count; i++)
166	putchar(ch);	166	putchar(ch);
167	}	167	}
168		168
169	/** Try to find a command beginning with prefix */	169	/** Try to find a command beginning with prefix */
170	static const char cmdtab_search_one(const char name, link_t **startpos)	170	static const char cmdtab_search_one(const char name, link_t **startpos)
171	{	171	{
172	count_t namelen = str_length(name);	172	size_t namelen = str_length(name);
173		173
174	spinlock_lock(&cmd_lock);	174	spinlock_lock(&cmd_lock);
175		175
176	if (*startpos == NULL)	176	if (*startpos == NULL)
177	*startpos = cmd_head.next;	177	*startpos = cmd_head.next;
Line 203...	Line 203...
203	*/	203	*/
204	static int cmdtab_compl(char *input, size_t size)	204	static int cmdtab_compl(char *input, size_t size)
205	{	205	{
206	const char *name = input;	206	const char *name = input;
207		207
208	count_t found = 0;	208	size_t found = 0;
209	link_t *pos = NULL;	209	link_t *pos = NULL;
210	const char *hint;	210	const char *hint;
211	char output[MAX_CMDLINE];	211	char output[MAX_CMDLINE];
212		212
213	output[0] = 0;	213	output[0] = 0;
Line 238...	Line 238...
238		238
239	static wchar_t clever_readline(const char prompt, indev_t *indev)	239	static wchar_t clever_readline(const char prompt, indev_t *indev)
240	{	240	{
241	printf("%s> ", prompt);	241	printf("%s> ", prompt);
242		242
243	count_t position = 0;	243	size_t position = 0;
244	wchar_t *current = history[history_pos];	244	wchar_t *current = history[history_pos];
245	current[0] = 0;	245	current[0] = 0;
246		246
247	while (true) {	247	while (true) {
248	wchar_t ch = indev_pop_character(indev);	248	wchar_t ch = indev_pop_character(indev);
Line 278...	Line 278...
278	if (position == 0)	278	if (position == 0)
279	continue;	279	continue;
280		280
281	/* Find the beginning of the word	281	/* Find the beginning of the word
282	and copy it to tmp */	282	and copy it to tmp */
283	count_t beg;	283	size_t beg;
284	for (beg = position - 1; (beg > 0) && (!isspace(current[beg]));	284	for (beg = position - 1; (beg > 0) && (!isspace(current[beg]));
285	beg--);	285	beg--);
286		286
287	if (isspace(current[beg]))	287	if (isspace(current[beg]))
288	beg++;	288	beg++;
Line 311...	Line 311...
311	}	311	}
312		312
313	/* We have a hint */	313	/* We have a hint */
314		314
315	size_t off = 0;	315	size_t off = 0;
316	count_t i = 0;	316	size_t i = 0;
317	while ((ch = str_decode(tmp, &off, STR_NO_LIMIT)) != 0) {	317	while ((ch = str_decode(tmp, &off, STR_NO_LIMIT)) != 0) {
318	if (!wstr_linsert(current, ch, position + i, MAX_CMDLINE))	318	if (!wstr_linsert(current, ch, position + i, MAX_CMDLINE))
319	break;	319	break;
320	i++;	320	i++;
321	}	321	}
Line 540...	Line 540...
540	cmd_info_t *hlp = list_get_instance(cur, cmd_info_t, link);	540	cmd_info_t *hlp = list_get_instance(cur, cmd_info_t, link);
541	spinlock_lock(&hlp->lock);	541	spinlock_lock(&hlp->lock);
542		542
543	if (str_lcmp(hlp->name, cmdline + start,	543	if (str_lcmp(hlp->name, cmdline + start,
544	max(str_length(hlp->name),	544	max(str_length(hlp->name),
545	str_nlength(cmdline + start, (count_t) (end - start) - 1))) == 0) {	545	str_nlength(cmdline + start, (size_t) (end - start) - 1))) == 0) {
546	cmd = hlp;	546	cmd = hlp;
547	break;	547	break;
548	}	548	}
549		549
550	spinlock_unlock(&hlp->lock);	550	spinlock_unlock(&hlp->lock);
Line 566...	Line 566...
566	* converted to those specified in the cmd info	566	* converted to those specified in the cmd info
567	* structure.	567	* structure.
568	*/	568	*/
569		569
570	bool error = false;	570	bool error = false;
571	count_t i;	571	size_t i;
572	for (i = 0; i < cmd->argc; i++) {	572	for (i = 0; i < cmd->argc; i++) {
573	start = end;	573	start = end;
574	if (!parse_argument(cmdline, size, &start, &end)) {	574	if (!parse_argument(cmdline, size, &start, &end)) {
575	printf("Too few arguments.\n");	575	printf("Too few arguments.\n");
576	spinlock_unlock(&cmd->lock);	576	spinlock_unlock(&cmd->lock);
Line 657...	Line 657...
657	else	657	else
658	printf("Type \"exit\" to leave the console.\n");	658	printf("Type \"exit\" to leave the console.\n");
659		659
660	while (true) {	660	while (true) {
661	wchar_t tmp = clever_readline((char ) prompt, stdin);	661	wchar_t tmp = clever_readline((char ) prompt, stdin);
662	count_t len = wstr_length(tmp);	662	size_t len = wstr_length(tmp);
663	if (!len)	663	if (!len)
664	continue;	664	continue;
665		665
666	char cmdline[STR_BOUNDS(MAX_CMDLINE)];	666	char cmdline[STR_BOUNDS(MAX_CMDLINE)];
667	wstr_nstr(cmdline, tmp, STR_BOUNDS(MAX_CMDLINE));	667	wstr_nstr(cmdline, tmp, STR_BOUNDS(MAX_CMDLINE));

Subversion Repositories HelenOS

(root)/branches/tracing/kernel/generic/src/console/kconsole.c – Rev 4377 → 4692