#include "parse.h"
+static void show_option_range(struct fio_option *o)
+{
+ if (!o->minval && !o->maxval)
+ return;
+
+ printf("%16s: min=%d, max=%d\n", "range", o->minval, o->maxval);
+}
+
+static void show_option_values(struct fio_option *o)
+{
+ const char *msg;
+ int i = 0;
+
+ do {
+ msg = o->posval[i].ival;
+ if (!msg)
+ break;
+
+ if (!i)
+ printf("%16s: ", "valid values");
+
+ printf("%s,", msg);
+ i++;
+ } while (i < PARSE_MAX_VP);
+
+ if (i)
+ printf("\n");
+}
+
static unsigned long get_mult_time(char c)
{
switch (c) {
case 'g':
case 'G':
return 1024 * 1024 * 1024;
+ case 'e':
+ case 'E':
+ return 1024 * 1024 * 1024 * 1024UL;
default:
return 1;
}
}
/*
- * convert string after '=' into decimal value, noting any size suffix
+ * convert string into decimal value, noting any size suffix
*/
-static int str_to_decimal(char *p, unsigned long long *val, int kilo)
+static int str_to_decimal(const char *str, long long *val, int kilo)
{
- char *str;
int len;
- str = strchr(p, '=');
- if (!str)
- return 1;
-
- str++;
len = strlen(str);
+ if (!len)
+ return 1;
- *val = strtoul(str, NULL, 10);
- if (*val == ULONG_MAX && errno == ERANGE)
+ *val = strtoll(str, NULL, 10);
+ if (*val == LONG_MAX && errno == ERANGE)
return 1;
if (kilo)
*val *= get_mult_bytes(str[len - 1]);
else
*val *= get_mult_time(str[len - 1]);
+
return 0;
}
-int check_str_bytes(char *p, char *name, unsigned long long *val)
+static int check_str_bytes(const char *p, long long *val)
{
- if (strncmp(p, name, strlen(name) - 1))
- return 1;
-
return str_to_decimal(p, val, 1);
}
-int check_str_time(char *p, char *name, unsigned long long *val)
+static int check_str_time(const char *p, long long *val)
{
- if (strncmp(p, name, strlen(name) - 1))
- return 1;
-
return str_to_decimal(p, val, 0);
}
*(s + 1) = '\0';
}
-int check_str(char *p, char *name, str_cb_fn *cb, void *data)
+static int check_range_bytes(const char *str, long *val)
{
- char *s;
+ char suffix;
- if (strncmp(p, name, strlen(name)))
+ if (!strlen(str))
return 1;
- s = strstr(p, name);
- if (!s)
- return 1;
+ if (sscanf(str, "%lu%c", val, &suffix) == 2) {
+ *val *= get_mult_bytes(suffix);
+ return 0;
+ }
- s = strchr(s, '=');
- if (!s)
- return 1;
+ if (sscanf(str, "%lu", val) == 1)
+ return 0;
- s++;
- strip_blank_front(&s);
- return cb(data, s);
+ return 1;
}
-int check_strstore(char *p, char *name, char *dest)
+static int check_int(const char *p, int *val)
{
- char *s;
-
- if (strncmp(p, name, strlen(name)))
- return 1;
-
- s = strstr(p, name);
- if (!s)
+ if (!strlen(p))
return 1;
+ if (sscanf(p, "%u", val) == 1)
+ return 0;
- s = strchr(p, '=');
- if (!s)
- return 1;
-
- s++;
- strip_blank_front(&s);
-
- strcpy(dest, s);
- return 0;
+ return 1;
}
-static int __check_range_bytes(char *str, unsigned long *val)
+static struct fio_option *find_option(struct fio_option *options,
+ const char *opt)
{
- char suffix;
+ struct fio_option *o;
- if (sscanf(str, "%lu%c", val, &suffix) == 2) {
- *val *= get_mult_bytes(suffix);
- return 0;
+ for (o = &options[0]; o->name; o++) {
+ if (!strcmp(o->name, opt))
+ return o;
+ else if (o->alias && !strcmp(o->alias, opt))
+ return o;
}
- if (sscanf(str, "%lu", val) == 1)
- return 0;
-
- return 1;
+ return NULL;
}
-int check_range_bytes(char *p, char *name, unsigned long *s, unsigned long *e)
-{
- char option[128];
- char *str, *p1, *p2;
+#define val_store(ptr, val, off, data) \
+ do { \
+ ptr = td_var((data), (off)); \
+ *ptr = (val); \
+ } while (0)
- if (strncmp(p, name, strlen(name)))
+static int __handle_option(struct fio_option *o, const char *ptr, void *data,
+ int first, int more)
+{
+ int il, *ilp;
+ long long ull, *ullp;
+ long ul1, ul2;
+ char **cp;
+ int ret = 0, is_time = 0;
+
+ if (!ptr && o->type != FIO_OPT_STR_SET) {
+ fprintf(stderr, "Option %s requires an argument\n", o->name);
return 1;
+ }
- strcpy(option, p);
- p = option;
+ switch (o->type) {
+ case FIO_OPT_STR: {
+ fio_opt_str_fn *fn = o->cb;
+ const struct value_pair *vp;
+ int i;
+
+ ret = 1;
+ for (i = 0; i < PARSE_MAX_VP; i++) {
+ vp = &o->posval[i];
+ if (!vp->ival || vp->ival[0] == '\0')
+ break;
+ if (!strncmp(vp->ival, ptr, strlen(vp->ival))) {
+ ret = 0;
+ if (!o->off1)
+ break;
+ val_store(ilp, vp->oval, o->off1, data);
+ break;
+ }
+ }
+
+ if (ret)
+ show_option_values(o);
+ else if (fn)
+ ret = fn(data, ptr);
+ break;
+ }
+ case FIO_OPT_STR_VAL_TIME:
+ is_time = 1;
+ case FIO_OPT_STR_VAL:
+ case FIO_OPT_STR_VAL_INT: {
+ fio_opt_str_val_fn *fn = o->cb;
+
+ if (is_time)
+ ret = check_str_time(ptr, &ull);
+ else
+ ret = check_str_bytes(ptr, &ull);
+
+ if (ret)
+ break;
+
+ if (o->maxval && ull > o->maxval) {
+ fprintf(stderr, "max value out of range: %lld (%d max)\n", ull, o->maxval);
+ return 1;
+ }
+ if (o->minval && ull < o->minval) {
+ fprintf(stderr, "min value out of range: %lld (%d min)\n", ull, o->minval);
+ return 1;
+ }
+
+ if (fn)
+ ret = fn(data, &ull);
+ else {
+ if (o->type == FIO_OPT_STR_VAL_INT) {
+ if (first)
+ val_store(ilp, ull, o->off1, data);
+ if (!more && o->off2)
+ val_store(ilp, ull, o->off2, data);
+ } else {
+ if (first)
+ val_store(ullp, ull, o->off1, data);
+ if (!more && o->off2)
+ val_store(ullp, ull, o->off2, data);
+ }
+ }
+ break;
+ }
+ case FIO_OPT_STR_STORE:
+ cp = td_var(data, o->off1);
+ *cp = strdup(ptr);
+ break;
+ case FIO_OPT_RANGE: {
+ char tmp[128];
+ char *p1, *p2;
+
+ strncpy(tmp, ptr, sizeof(tmp) - 1);
+
+ p1 = strchr(tmp, '-');
+ if (!p1) {
+ p1 = strchr(tmp, ':');
+ if (!p1) {
+ ret = 1;
+ break;
+ }
+ }
+
+ p2 = p1 + 1;
+ *p1 = '\0';
+ p1 = tmp;
+
+ ret = 1;
+ if (!check_range_bytes(p1, &ul1) && !check_range_bytes(p2, &ul2)) {
+ ret = 0;
+ if (ul1 > ul2) {
+ unsigned long foo = ul1;
+
+ ul1 = ul2;
+ ul2 = foo;
+ }
+
+ if (first) {
+ val_store(ilp, ul1, o->off1, data);
+ val_store(ilp, ul2, o->off2, data);
+ }
+ if (!more && o->off3 && o->off4) {
+ val_store(ilp, ul1, o->off3, data);
+ val_store(ilp, ul2, o->off4, data);
+ }
+ }
+
+ break;
+ }
+ case FIO_OPT_INT:
+ case FIO_OPT_BOOL: {
+ fio_opt_int_fn *fn = o->cb;
- str = strstr(p, name);
- if (!str)
- return 1;
+ ret = check_int(ptr, &il);
+ if (ret)
+ break;
- p += strlen(name);
+ if (o->maxval && il > (int) o->maxval) {
+ fprintf(stderr, "max value out of range: %d (%d max)\n", il, o->maxval);
+ return 1;
+ }
+ if (o->minval && il < o->minval) {
+ fprintf(stderr, "min value out of range: %d (%d min)\n", il, o->minval);
+ return 1;
+ }
+
+ if (o->neg)
+ il = !il;
+
+ if (fn)
+ ret = fn(data, &il);
+ else {
+ if (first)
+ val_store(ilp, il, o->off1, data);
+ if (!more && o->off2)
+ val_store(ilp, il, o->off2, data);
+ }
+ break;
+ }
+ case FIO_OPT_STR_SET: {
+ fio_opt_str_set_fn *fn = o->cb;
+
+ if (fn)
+ ret = fn(data);
+ else {
+ if (first)
+ val_store(ilp, 1, o->off1, data);
+ if (!more && o->off2)
+ val_store(ilp, 1, o->off2, data);
+ }
+ break;
+ }
+ default:
+ fprintf(stderr, "Bad option type %u\n", o->type);
+ ret = 1;
+ }
- str = strchr(p, '=');
- if (!str)
- return 1;
+ return ret;
+}
+
+static int handle_option(struct fio_option *o, const char *ptr, void *data)
+{
+ const char *ptr2 = NULL;
+ int r1, r2;
/*
- * 'p' now holds whatever is after the '=' sign
+ * See if we have a second set of parameters, hidden after a comma.
+ * Do this before parsing the first round, to check if we should
+ * copy set 1 options to set 2.
*/
- p1 = str + 1;
+ if (ptr && (o->type != FIO_OPT_STR_STORE)) {
+ ptr2 = strchr(ptr, ',');
+ if (!ptr2)
+ ptr2 = strchr(ptr, ':');
+ }
/*
- * terminate p1 at the '-' sign
+ * Don't return early if parsing the first option fails - if
+ * we are doing multiple arguments, we can allow the first one
+ * being empty.
*/
- p = strchr(p1, '-');
- if (!p)
- return 1;
+ r1 = __handle_option(o, ptr, data, 1, !!ptr2);
+
+ if (!ptr2)
+ return r1;
- p2 = p + 1;
- *p = '\0';
+ ptr2++;
+ r2 = __handle_option(o, ptr2, data, 0, 0);
+
+ return r1 && r2;
+}
- if (!__check_range_bytes(p1, s) && !__check_range_bytes(p2, e))
+int parse_cmd_option(const char *opt, const char *val,
+ struct fio_option *options, void *data)
+{
+ struct fio_option *o;
+
+ o = find_option(options, opt);
+ if (!o) {
+ fprintf(stderr, "Bad option %s\n", opt);
+ return 1;
+ }
+
+ if (!handle_option(o, val, data))
return 0;
+ fprintf(stderr, "fio: failed parsing %s=%s\n", opt, val);
return 1;
}
-int check_int(char *p, char *name, unsigned int *val)
+int parse_option(const char *opt, struct fio_option *options, void *data)
{
- char *str;
+ struct fio_option *o;
+ char *pre, *post;
+ char tmp[64];
+
+ strncpy(tmp, opt, sizeof(tmp) - 1);
+
+ pre = strchr(tmp, '=');
+ if (pre) {
+ post = pre;
+ *pre = '\0';
+ pre = tmp;
+ post++;
+ o = find_option(options, pre);
+ } else {
+ o = find_option(options, tmp);
+ post = NULL;
+ }
- if (strncmp(p, name, strlen(name)))
+ if (!o) {
+ fprintf(stderr, "Bad option %s\n", tmp);
return 1;
+ }
- str = strstr(p, name);
- if (!str)
- return 1;
+ if (!handle_option(o, post, data))
+ return 0;
- str = strchr(p, '=');
- if (!str)
- return 1;
+ fprintf(stderr, "fio: failed parsing %s\n", opt);
+ return 1;
+}
- str++;
+int show_cmd_help(struct fio_option *options, const char *name)
+{
+ int show_all = !strcmp(name, "all");
+ const char *typehelp[] = {
+ "string (opt=bla)",
+ "string with possible k/m/g postfix (opt=4k)",
+ "string with range and postfix (opt=1k-4k)",
+ "string with time postfix (opt=10s)",
+ "string (opt=bla)",
+ "string with dual range (opt=1k-4k,4k-8k)",
+ "integer value (opt=100)",
+ "boolean value (opt=1)",
+ "no argument (opt)",
+ };
+ struct fio_option *o;
+ int found = 0;
+
+ for (o = &options[0]; o->name; o++) {
+ int match = !strcmp(name, o->name);
+
+ if (show_all || match) {
+ found = 1;
+ printf("%16s: %s\n", o->name, o->help);
+ if (show_all)
+ continue;
+ }
+
+ if (!match)
+ continue;
+
+ printf("%16s: %s\n", "type", typehelp[o->type]);
+ printf("%16s: %s\n", "default", o->def ? o->def : "no default");
+ show_option_range(o);
+ show_option_values(o);
+ }
- if (sscanf(str, "%u", val) == 1)
+ if (found)
return 0;
+ printf("No such command: %s\n", name);
return 1;
}
-int check_strset(char *p, char *name)
+/*
+ * Handle parsing of default parameters.
+ */
+void fill_default_options(void *data, struct fio_option *options)
{
- return strncmp(p, name, strlen(name));
+ struct fio_option *o;
+
+ for (o = &options[0]; o->name; o++)
+ if (o->def)
+ handle_option(o, o->def, data);
}
+/*
+ * Sanitize the options structure. For now it just sets min/max for bool
+ * values and whether both callback and offsets are given.
+ */
+void options_init(struct fio_option *options)
+{
+ struct fio_option *o;
+
+ for (o = &options[0]; o->name; o++) {
+ if (o->type == FIO_OPT_BOOL) {
+ o->minval = 0;
+ o->maxval = 1;
+ }
+ if (!o->cb && !o->off1)
+ fprintf(stderr, "Option %s: neither cb nor offset given\n", o->name);
+ if (o->type == FIO_OPT_STR)
+ continue;
+ if (o->cb && (o->off1 || o->off2 || o->off3 || o->off4))
+ fprintf(stderr, "Option %s: both cb and offset given\n", o->name);
+ }
+}
projects / fio.git / blobdiff