static void trace_init_events(const char *fname)
{
Location loc;
FILE *fp;
char line_buf[1024];
size_t line_idx = 0;
if (fname == NULL) {
return;
}
loc_push_none(&loc);
loc_set_file(fname, 0);
fp = fopen(fname, "r");
if (!fp) {
error_report("%s", strerror(errno));
exit(1);
}
while (fgets(line_buf, sizeof(line_buf), fp)) {
loc_set_file(fname, ++line_idx);
size_t len = strlen(line_buf);
if (len > 1) { /* skip empty lines */
line_buf[len - 1] = '\0';
if ('#' == line_buf[0]) { /* skip commented lines */
continue;
}
const bool enable = ('-' != line_buf[0]);
char *line_ptr = enable ? line_buf : line_buf + 1;
if (trace_event_is_pattern(line_ptr)) {
TraceEvent *ev = NULL;
while ((ev = trace_event_pattern(line_ptr, ev)) != NULL) {
if (trace_event_get_state_static(ev)) {
trace_event_set_state_dynamic(ev, enable);
}
}
} else {
TraceEvent *ev = trace_event_name(line_ptr);
if (ev == NULL) {
error_report("WARNING: trace event '%s' does not exist",
line_ptr);
} else if (!trace_event_get_state_static(ev)) {
error_report("WARNING: trace event '%s' is not traceable\n",
line_ptr);
} else {
trace_event_set_state_dynamic(ev, enable);
}
}
}
}
if (fclose(fp) != 0) {
loc_set_file(fname, 0);
error_report("%s", strerror(errno));
exit(1);
}
loc_pop(&loc);
}
int qemu_config_parse(FILE *fp, QemuOptsList **lists, const char *fname)
{
char line[1024], group[64], id[64], arg[64], value[1024];
Location loc;
QemuOptsList *list = NULL;
QemuOpts *opts = NULL;
int res = -1, lno = 0;
loc_push_none(&loc);
while (fgets(line, sizeof(line), fp) != NULL) {
loc_set_file(fname, ++lno);
if (line[0] == '\n') {
/* skip empty lines */
continue;
}
if (line[0] == '#') {
/* comment */
continue;
}
if (sscanf(line, "[%63s \"%63[^\"]\"]", group, id) == 2) {
/* group with id */
list = find_list(lists, group);
if (list == NULL)
goto out;
opts = qemu_opts_create(list, id, 1);
continue;
}
if (sscanf(line, "[%63[^]]]", group) == 1) {
/* group without id */
list = find_list(lists, group);
if (list == NULL)
goto out;
opts = qemu_opts_create(list, NULL, 0);
continue;
}
if (sscanf(line, " %63s = \"%1023[^\"]\"", arg, value) == 2) {
/* arg = value */
if (opts == NULL) {
error_report("no group defined");
goto out;
}
if (qemu_opt_set(opts, arg, value) != 0) {
goto out;
}
continue;
}
error_report("parse error");
goto out;
}
if (ferror(fp)) {
error_report("error reading file");
goto out;
}
res = 0;
out:
loc_pop(&loc);
return res;
}
static void trace_init_events(const char *fname)
{
Location loc;
FILE *fp;
char line_buf[1024];
size_t line_idx = 0;
if (fname == NULL) {
return;
}
loc_push_none(&loc);
loc_set_file(fname, 0);
fp = fopen(fname, "r");
if (!fp) {
error_report("%s", strerror(errno));
exit(1);
}
while (fgets(line_buf, sizeof(line_buf), fp)) {
loc_set_file(fname, ++line_idx);
size_t len = strlen(line_buf);
if (len > 1) { /* skip empty lines */
line_buf[len - 1] = '\0';
if ('#' == line_buf[0]) { /* skip commented lines */
continue;
}
trace_enable_events(line_buf);
}
}
if (fclose(fp) != 0) {
loc_set_file(fname, 0);
error_report("%s", strerror(errno));
exit(1);
}
loc_pop(&loc);
}
