2 * This file contains the ini and command liner parser main.
14 static unsigned long get_mult_time(char c)
31 static unsigned long get_mult_bytes(char c)
42 return 1024 * 1024 * 1024;
49 * convert string into decimal value, noting any size suffix
51 static int str_to_decimal(const char *str, long long *val, int kilo)
59 *val = strtoll(str, NULL, 10);
60 if (*val == LONG_MAX && errno == ERANGE)
64 *val *= get_mult_bytes(str[len - 1]);
66 *val *= get_mult_time(str[len - 1]);
71 static int check_str_bytes(const char *p, long long *val)
73 return str_to_decimal(p, val, 1);
76 static int check_str_time(const char *p, long long *val)
78 return str_to_decimal(p, val, 0);
81 void strip_blank_front(char **p)
89 void strip_blank_end(char *p)
91 char *s = p + strlen(p) - 1;
93 while (isspace(*s) || iscntrl(*s))
99 static int check_range_bytes(const char *str, long *val)
106 if (sscanf(str, "%lu%c", val, &suffix) == 2) {
107 *val *= get_mult_bytes(suffix);
111 if (sscanf(str, "%lu", val) == 1)
117 static int check_int(const char *p, int *val)
121 if (sscanf(p, "%u", val) == 1)
127 static struct fio_option *find_option(struct fio_option *options,
130 struct fio_option *o;
132 for (o = &options[0]; o->name; o++) {
133 if (!strcmp(o->name, opt))
135 else if (o->alias && !strcmp(o->alias, opt))
142 #define val_store(ptr, val, off, data) \
144 ptr = td_var((data), (off)); \
148 static int __handle_option(struct fio_option *o, const char *ptr, void *data,
152 long long ull, *ullp;
155 int ret = 0, is_time = 0;
157 if (!ptr && o->type != FIO_OPT_STR_SET) {
158 fprintf(stderr, "Option %s requires an argument\n", o->name);
164 fio_opt_str_fn *fn = o->cb;
169 case FIO_OPT_STR_VAL_TIME:
171 case FIO_OPT_STR_VAL:
172 case FIO_OPT_STR_VAL_INT: {
173 fio_opt_str_val_fn *fn = o->cb;
176 ret = check_str_time(ptr, &ull);
178 ret = check_str_bytes(ptr, &ull);
183 if (o->maxval && ull > o->maxval) {
184 fprintf(stderr, "max value out of range: %lld (%d max)\n", ull, o->maxval);
187 if (o->minval && ull < o->minval) {
188 fprintf(stderr, "min value out of range: %lld (%d min)\n", ull, o->minval);
193 ret = fn(data, &ull);
195 if (o->type == FIO_OPT_STR_VAL_INT) {
197 val_store(ilp, ull, o->off1, data);
198 if (!more && o->off2)
199 val_store(ilp, ull, o->off2, data);
202 val_store(ullp, ull, o->off1, data);
203 if (!more && o->off2)
204 val_store(ullp, ull, o->off2, data);
209 case FIO_OPT_STR_STORE:
210 cp = td_var(data, o->off1);
213 case FIO_OPT_RANGE: {
217 strncpy(tmp, ptr, sizeof(tmp) - 1);
219 p1 = strchr(tmp, '-');
221 p1 = strchr(tmp, ':');
233 if (!check_range_bytes(p1, &ul1) && !check_range_bytes(p2, &ul2)) {
236 unsigned long foo = ul1;
243 val_store(ilp, ul1, o->off1, data);
244 val_store(ilp, ul2, o->off2, data);
246 if (!more && o->off3 && o->off4) {
247 val_store(ilp, ul1, o->off3, data);
248 val_store(ilp, ul2, o->off4, data);
256 fio_opt_int_fn *fn = o->cb;
258 ret = check_int(ptr, &il);
262 if (o->maxval && il > (int) o->maxval) {
263 fprintf(stderr, "max value out of range: %d (%d max)\n", il, o->maxval);
266 if (o->minval && il < o->minval) {
267 fprintf(stderr, "min value out of range: %d (%d min)\n", il, o->minval);
278 val_store(ilp, il, o->off1, data);
279 if (!more && o->off2)
280 val_store(ilp, il, o->off2, data);
284 case FIO_OPT_STR_SET: {
285 fio_opt_str_set_fn *fn = o->cb;
291 val_store(ilp, 1, o->off1, data);
292 if (!more && o->off2)
293 val_store(ilp, 1, o->off2, data);
298 fprintf(stderr, "Bad option type %u\n", o->type);
305 static int handle_option(struct fio_option *o, const char *ptr, void *data)
307 const char *ptr2 = NULL;
311 * See if we have a second set of parameters, hidden after a comma.
312 * Do this before parsing the first round, to check if we should
313 * copy set 1 options to set 2.
315 if (ptr && (o->type != FIO_OPT_STR_STORE)) {
316 ptr2 = strchr(ptr, ',');
318 ptr2 = strchr(ptr, ':');
322 * Don't return early if parsing the first option fails - if
323 * we are doing multiple arguments, we can allow the first one
326 r1 = __handle_option(o, ptr, data, 1, !!ptr2);
332 r2 = __handle_option(o, ptr2, data, 0, 0);
337 int parse_cmd_option(const char *opt, const char *val,
338 struct fio_option *options, void *data)
340 struct fio_option *o;
342 o = find_option(options, opt);
344 fprintf(stderr, "Bad option %s\n", opt);
348 if (!handle_option(o, val, data))
351 fprintf(stderr, "fio: failed parsing %s=%s\n", opt, val);
355 int parse_option(const char *opt, struct fio_option *options, void *data)
357 struct fio_option *o;
361 strncpy(tmp, opt, sizeof(tmp) - 1);
363 pre = strchr(tmp, '=');
369 o = find_option(options, pre);
371 o = find_option(options, tmp);
376 fprintf(stderr, "Bad option %s\n", tmp);
380 if (!handle_option(o, post, data))
383 fprintf(stderr, "fio: failed parsing %s\n", opt);
387 static void show_option_range(struct fio_option *o)
389 if (!o->minval && !o->maxval)
392 printf("%16s: min=%d, max=%d\n", "range", o->minval, o->maxval);
395 static void show_option_values(struct fio_option *o)
409 printf("%16s: ", "valid values");
419 int show_cmd_help(struct fio_option *options, const char *name)
421 int show_all = !strcmp(name, "all");
422 const char *typehelp[] = {
424 "string with possible k/m/g postfix (opt=4k)",
425 "string with range and postfix (opt=1k-4k)",
426 "string with time postfix (opt=10s)",
428 "string with dual range (opt=1k-4k,4k-8k)",
429 "integer value (opt=100)",
430 "boolean value (opt=1)",
433 struct fio_option *o;
436 for (o = &options[0]; o->name; o++) {
437 int match = !strcmp(name, o->name);
439 if (show_all || match) {
441 printf("%16s: %s\n", o->name, o->help);
449 printf("%16s: %s\n", "type", typehelp[o->type]);
450 printf("%16s: %s\n", "default", o->def ? o->def : "no default");
451 show_option_range(o);
452 show_option_values(o);
458 printf("No such command: %s\n", name);
463 * Handle parsing of default parameters.
465 void fill_default_options(void *data, struct fio_option *options)
467 struct fio_option *o;
469 for (o = &options[0]; o->name; o++)
471 handle_option(o, o->def, data);
475 * Sanitize the options structure. For now it just sets min/max for bool
476 * values and whether both callback and offsets are given.
478 void options_init(struct fio_option *options)
480 struct fio_option *o;
482 for (o = &options[0]; o->name; o++) {
483 if (o->type == FIO_OPT_BOOL) {
487 if (o->cb && (o->off1 || o->off2 || o->off3 || o->off4))
488 fprintf(stderr, "Option %s: both cb and offset given\n", o->name);