static qltimer_t*
new_timer(qdict_t *args, const char *mod, const char *func) {
qltimer_t *timer;
timer = (qltimer_t*)qalloc(sizeof(qltimer_t));
if (timer == NULL) {
return NULL;
}
timer->args = args;
timer->mod = qstring_new(mod);
timer->func = qstring_new(func);
if (timer->mod == NULL || timer->func == NULL) {
goto error;
}
return timer;
error:
if (timer->mod) {
qstring_destroy(timer->mod);
}
if (timer->func) {
qstring_destroy(timer->func);
}
qfree(timer);
return NULL;
}
void json_lexer_init(JSONLexer *lexer, JSONLexerEmitter func)
{
lexer->emit = func;
lexer->state = IN_START;
lexer->token = qstring_new();
lexer->x = lexer->y = 0;
}
static int send_response(GAState *s, QObject *payload)
{
const char *buf;
QString *payload_qstr, *response_qstr;
GIOStatus status;
g_assert(payload && s->channel);
payload_qstr = qobject_to_json(payload);
if (!payload_qstr) {
return -EINVAL;
}
if (s->delimit_response) {
s->delimit_response = false;
response_qstr = qstring_new();
qstring_append_chr(response_qstr, QGA_SENTINEL_BYTE);
qstring_append(response_qstr, qstring_get_str(payload_qstr));
QDECREF(payload_qstr);
} else {
response_qstr = payload_qstr;
}
qstring_append_chr(response_qstr, '\n');
buf = qstring_get_str(response_qstr);
status = ga_channel_write_all(s->channel, buf, strlen(buf));
QDECREF(response_qstr);
if (status != G_IO_STATUS_NORMAL) {
return -EIO;
}
return 0;
}
void
qlogger_open_file() {
qstring_t file;
char buff[30] = {'\0'};
time_t t;
struct tm tm;
t = time(NULL);
memset(&tm, 0, sizeof(struct tm));
localtime_r(&t, &tm);
strftime((char*)(&buff[0]), sizeof(buff), "%Y%m%d-%H%M%S", &tm);
logger->log_size = 0;
if (logger->fd != -1) {
fsync(logger->fd);
close(logger->fd);
}
file = qstring_new(config.log_path);
file = qstring_catvprintf(file, "/qserver_%s.log", buff);
logger->fd = open(file, O_CREAT | O_TRUNC | O_RDWR,
S_IWUSR | S_IRUSR | S_IWOTH | S_IROTH | S_IRGRP | S_IWGRP);
if (logger->fd == -1) {
qstdout("open log file %s error: %s\n", file, strerror(errno));
exit(-1);
}
qstring_destroy(file);
}
QString *qobject_to_json(const QObject *obj)
{
QString *str = qstring_new();
to_json(obj, str);
return str;
}
static void qobject_is_equal_conversion_test(void)
{
QNum *u0, *i0, *d0;
QString *s0, *s_empty;
QBool *bfalse;
u0 = qnum_from_uint(0u);
i0 = qnum_from_int(0);
d0 = qnum_from_double(0.0);
s0 = qstring_from_str("0");
s_empty = qstring_new();
bfalse = qbool_from_bool(false);
/* No automatic type conversion */
check_unequal(u0, s0, s_empty, bfalse, qnull(), NULL);
check_unequal(i0, s0, s_empty, bfalse, qnull(), NULL);
check_unequal(d0, s0, s_empty, bfalse, qnull(), NULL);
free_all(u0, i0, d0, s0, s_empty, bfalse);
}
static int json_lexer_feed_char(JSONLexer *lexer, char ch)
{
int char_consumed, new_state;
lexer->x++;
if (ch == '\n') {
lexer->x = 0;
lexer->y++;
}
do {
new_state = json_lexer[lexer->state][(uint8_t)ch];
char_consumed = !TERMINAL_NEEDED_LOOKAHEAD(lexer->state, new_state);
if (char_consumed) {
qstring_append_chr(lexer->token, ch);
}
switch (new_state) {
case JSON_OPERATOR:
case JSON_ESCAPE:
case JSON_INTEGER:
case JSON_FLOAT:
case JSON_KEYWORD:
case JSON_STRING:
lexer->emit(lexer, lexer->token, new_state, lexer->x, lexer->y);
case JSON_SKIP:
QDECREF(lexer->token);
lexer->token = qstring_new();
new_state = IN_START;
break;
case IN_ERROR:
return -EINVAL;
default:
break;
}
lexer->state = new_state;
} while (!char_consumed);
return 0;
}
/**
* qerror_human(): Format QError data into human-readable string.
*
* Formats according to member 'desc' of the specified QError object.
*/
QString *qerror_human(const QError *qerror)
{
const char *p;
QString *qstring;
assert(qerror->entry != NULL);
qstring = qstring_new();
for (p = qerror->entry->desc; *p != '\0';) {
if (*p != '%') {
qstring_append_chr(qstring, *p++);
} else if (*(p + 1) == '%') {
qstring_append_chr(qstring, '%');
p += 2;
} else {
p = append_field(qstring, qerror, p);
}
}
return qstring;
}
static QString *qerror_format_desc(QDict *error,
const QErrorStringTable *entry)
{
QString *qstring;
const char *p;
assert(entry != NULL);
qstring = qstring_new();
for (p = entry->desc; *p != '\0';) {
if (*p != '%') {
qstring_append_chr(qstring, *p++);
} else if (*(p + 1) == '%') {
qstring_append_chr(qstring, '%');
p += 2;
} else {
p = append_field(error, qstring, entry, p);
}
}
return qstring;
}
static int json_lexer_feed_char(JSONLexer *lexer, char ch, bool flush)
{
int char_consumed, new_state;
lexer->x++;
if (ch == '\n') {
lexer->x = 0;
lexer->y++;
}
do {
new_state = json_lexer[lexer->state][(uint8_t)ch];
char_consumed = !TERMINAL_NEEDED_LOOKAHEAD(lexer->state, new_state);
if (char_consumed) {
qstring_append_chr(lexer->token, ch);
}
switch (new_state) {
case JSON_OPERATOR:
case JSON_ESCAPE:
case JSON_INTEGER:
case JSON_FLOAT:
case JSON_KEYWORD:
case JSON_STRING:
lexer->emit(lexer, lexer->token, new_state, lexer->x, lexer->y);
/* fall through */
case JSON_SKIP:
QDECREF(lexer->token);
lexer->token = qstring_new();
new_state = IN_START;
break;
case IN_ERROR:
/* XXX: To avoid having previous bad input leaving the parser in an
* unresponsive state where we consume unpredictable amounts of
* subsequent "good" input, percolate this error state up to the
* tokenizer/parser by forcing a NULL object to be emitted, then
* reset state.
*
* Also note that this handling is required for reliable channel
* negotiation between QMP and the guest agent, since chr(0xFF)
* is placed at the beginning of certain events to ensure proper
* delivery when the channel is in an unknown state. chr(0xFF) is
* never a valid ASCII/UTF-8 sequence, so this should reliably
* induce an error/flush state.
*/
lexer->emit(lexer, lexer->token, JSON_ERROR, lexer->x, lexer->y);
QDECREF(lexer->token);
lexer->token = qstring_new();
new_state = IN_START;
lexer->state = new_state;
return 0;
default:
break;
}
lexer->state = new_state;
} while (!char_consumed && !flush);
/* Do not let a single token grow to an arbitrarily large size,
* this is a security consideration.
*/
if (lexer->token->length > MAX_TOKEN_SIZE) {
lexer->emit(lexer, lexer->token, lexer->state, lexer->x, lexer->y);
QDECREF(lexer->token);
lexer->token = qstring_new();
lexer->state = IN_START;
}
return 0;
}
