#include "parse.h"
+static int vp_cmp(const void *p1, const void *p2)
+{
+ const struct value_pair *vp1 = p1;
+ const struct value_pair *vp2 = p2;
+
+ return strlen(vp2->ival) - strlen(vp1->ival);
+}
+
+static void posval_sort(struct fio_option *o, struct value_pair *vpmap)
+{
+ const struct value_pair *vp;
+ int entries;
+
+ memset(vpmap, 0, PARSE_MAX_VP * sizeof(struct value_pair));
+
+ for (entries = 0; entries < PARSE_MAX_VP; entries++) {
+ vp = &o->posval[entries];
+ if (!vp->ival || vp->ival[0] == '\0')
+ break;
+
+ memcpy(&vpmap[entries], vp, sizeof(*vp));
+ }
+
+ qsort(vpmap, entries, sizeof(struct value_pair), vp_cmp);
+}
+
+static void show_option_range(struct fio_option *o)
+{
+ if (!o->minval && !o->maxval)
+ return;
+
+ printf("%20s: min=%d, max=%d\n", "range", o->minval, o->maxval);
+}
+
+static void show_option_values(struct fio_option *o)
+{
+ int i = 0;
+
+ do {
+ const struct value_pair *vp = &o->posval[i];
+
+ if (!vp->ival)
+ break;
+
+ printf("%20s: %-10s", i == 0 ? "valid values" : "", vp->ival);
+ if (vp->help)
+ printf(" %s", vp->help);
+ printf("\n");
+ 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 into decimal value, noting any size suffix
*/
-static int str_to_decimal(const char *str, unsigned long long *val, int kilo)
+static int str_to_decimal(const char *str, long long *val, int kilo)
{
int len;
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;
}
-static int check_str_bytes(const char *p, unsigned long long *val)
+static int check_str_bytes(const char *p, long long *val)
{
return str_to_decimal(p, val, 1);
}
-static int check_str_time(const char *p, unsigned long long *val)
+static int check_str_time(const char *p, long long *val)
{
return str_to_decimal(p, val, 0);
}
while (isspace(*s))
s++;
+
+ *p = s;
}
void strip_blank_end(char *p)
{
- char *s = p + strlen(p) - 1;
-
+ char *s;
+
+ s = strchr(p, ';');
+ if (s)
+ *s = '\0';
+ s = strchr(p, '#');
+ if (s)
+ *s = '\0';
+ if (s)
+ p = s;
+
+ s = p + strlen(p) - 1;
while (isspace(*s) || iscntrl(*s))
s--;
*(s + 1) = '\0';
}
-static int check_range_bytes(const char *str, unsigned long *val)
+static int check_range_bytes(const char *str, long *val)
{
char suffix;
+ if (!strlen(str))
+ return 1;
+
if (sscanf(str, "%lu%c", val, &suffix) == 2) {
*val *= get_mult_bytes(suffix);
return 0;
return 1;
}
-static int check_int(const char *p, unsigned int *val)
+static int check_int(const char *p, int *val)
{
+ if (!strlen(p))
+ return 1;
if (sscanf(p, "%u", val) == 1)
return 0;
static struct fio_option *find_option(struct fio_option *options,
const char *opt)
{
- struct fio_option *o = &options[0];
+ struct fio_option *o;
- while (o->name) {
+ for (o = &options[0]; o->name; o++) {
if (!strcmp(o->name, opt))
return o;
-
- o++;
+ else if (o->alias && !strcmp(o->alias, opt))
+ return o;
}
return NULL;
}
-static int handle_option(struct fio_option *o, const char *ptr, void *data)
+#define val_store(ptr, val, off, data) \
+ do { \
+ ptr = td_var((data), (off)); \
+ *ptr = (val); \
+ } while (0)
+
+static int __handle_option(struct fio_option *o, const char *ptr, void *data,
+ int first, int more)
{
- unsigned int il, *ilp1, *ilp2;
- unsigned long long ull, *ullp;
- unsigned long ul1, ul2;
+ 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;
+ }
+
switch (o->type) {
case FIO_OPT_STR: {
fio_opt_str_fn *fn = o->cb;
+ const struct value_pair *vp;
+ struct value_pair posval[PARSE_MAX_VP];
+ int i;
- ret = fn(data, ptr);
+ posval_sort(o, posval);
+
+ for (i = 0; i < PARSE_MAX_VP; i++) {
+ vp = &posval[i];
+ if (!vp->ival || vp->ival[0] == '\0')
+ break;
+ ret = 1;
+ 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:
if (ret)
break;
- if (o->max_val && ull > o->max_val)
- ull = o->max_val;
+ 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) {
- ilp1 = td_var(data, o->off1);
- *ilp1 = ull;
+ if (first)
+ val_store(ilp, ull, o->off1, data);
+ if (!more && o->off2)
+ val_store(ilp, ull, o->off2, data);
} else {
- ullp = td_var(data, o->off1);
- *ullp = ull;
+ 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:
+ case FIO_OPT_STR_STORE: {
+ fio_opt_str_fn *fn = o->cb;
+
cp = td_var(data, o->off1);
*cp = strdup(ptr);
+ if (fn) {
+ ret = fn(data, ptr);
+ if (ret) {
+ free(*cp);
+ *cp = NULL;
+ }
+ }
break;
+ }
case FIO_OPT_RANGE: {
char tmp[128];
char *p1, *p2;
p1 = strchr(tmp, '-');
if (!p1) {
- ret = 1;
- break;
+ p1 = strchr(tmp, ':');
+ if (!p1) {
+ ret = 1;
+ break;
+ }
}
p2 = p1 + 1;
ret = 1;
if (!check_range_bytes(p1, &ul1) && !check_range_bytes(p2, &ul2)) {
ret = 0;
- ilp1 = td_var(data, o->off1);
- ilp2 = td_var(data, o->off2);
if (ul1 > ul2) {
- *ilp1 = ul2;
- *ilp2 = ul1;
- } else {
- *ilp2 = ul2;
- *ilp1 = ul1;
+ 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_INT:
+ case FIO_OPT_BOOL: {
fio_opt_int_fn *fn = o->cb;
ret = check_int(ptr, &il);
if (ret)
break;
- if (o->max_val && il > o->max_val)
- il = o->max_val;
+ 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 {
- ilp1 = td_var(data, o->off1);
- *ilp1 = il;
+ if (first)
+ val_store(ilp, il, o->off1, data);
+ if (!more && o->off2)
+ val_store(ilp, il, o->off2, data);
}
break;
}
if (fn)
ret = fn(data);
else {
- ilp1 = td_var(data, o->off1);
- *ilp1 = 1;
+ 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 %d\n", o->type);
+ fprintf(stderr, "Bad option type %u\n", o->type);
ret = 1;
}
return ret;
}
+static int handle_option(struct fio_option *o, const char *ptr, void *data)
+{
+ const char *ptr2 = NULL;
+ int r1, r2;
+
+ /*
+ * 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.
+ */
+ if (ptr &&
+ (o->type != FIO_OPT_STR_STORE) &&
+ (o->type != FIO_OPT_STR)) {
+ ptr2 = strchr(ptr, ',');
+ if (!ptr2)
+ ptr2 = strchr(ptr, ':');
+ if (!ptr2)
+ ptr2 = strchr(ptr, '-');
+ }
+
+ /*
+ * Don't return early if parsing the first option fails - if
+ * we are doing multiple arguments, we can allow the first one
+ * being empty.
+ */
+ r1 = __handle_option(o, ptr, data, 1, !!ptr2);
+
+ if (!ptr2)
+ return r1;
+
+ ptr2++;
+ r2 = __handle_option(o, ptr2, data, 0, 0);
+
+ return r1 && r2;
+}
+
int parse_cmd_option(const char *opt, const char *val,
struct fio_option *options, void *data)
{
{
struct fio_option *o;
char *pre, *post;
- char tmp[64];
+ char *tmp;
- strncpy(tmp, opt, sizeof(tmp) - 1);
+ tmp = strdup(opt);
pre = strchr(tmp, '=');
if (pre) {
if (!o) {
fprintf(stderr, "Bad option %s\n", tmp);
+ free(tmp);
return 1;
}
- if (!handle_option(o, post, data))
+ if (!handle_option(o, post, data)) {
+ free(tmp);
return 0;
+ }
fprintf(stderr, "fio: failed parsing %s\n", opt);
+ free(tmp);
+ return 1;
+}
+
+/*
+ * Option match, levenshtein distance. Handy for not quite remembering what
+ * the option name is.
+ */
+static int string_distance(const char *s1, const char *s2)
+{
+ unsigned int s1_len = strlen(s1);
+ unsigned int s2_len = strlen(s2);
+ unsigned int *p, *q, *r;
+ unsigned int i, j;
+
+ p = malloc(sizeof(unsigned int) * (s2_len + 1));
+ q = malloc(sizeof(unsigned int) * (s2_len + 1));
+
+ p[0] = 0;
+ for (i = 1; i <= s2_len; i++)
+ p[i] = p[i - 1] + 1;
+
+ for (i = 1; i <= s1_len; i++) {
+ q[0] = p[0] + 1;
+ for (j = 1; j <= s2_len; j++) {
+ unsigned int sub = p[j - 1];
+
+ if (s1[i - 1] != s2[j - 1])
+ sub++;
+
+ q[j] = min(p[j] + 1, min(q[j - 1] + 1, sub));
+ }
+ r = p;
+ p = q;
+ q = r;
+ }
+
+ i = p[s2_len];
+ free(p);
+ free(q);
+ return i;
+}
+
+static void show_option_help(struct fio_option *o)
+{
+ 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)",
+ };
+
+ if (o->alias)
+ printf("%20s: %s\n", "alias", o->alias);
+
+ printf("%20s: %s\n", "type", typehelp[o->type]);
+ printf("%20s: %s\n", "default", o->def ? o->def : "no default");
+ show_option_range(o);
+ show_option_values(o);
+}
+
+int show_cmd_help(struct fio_option *options, const char *name)
+{
+ struct fio_option *o, *closest;
+ unsigned int best_dist;
+ int found = 0;
+ int show_all = 0;
+
+ if (!name || !strcmp(name, "all"))
+ show_all = 1;
+
+ closest = NULL;
+ best_dist = -1;
+ for (o = &options[0]; o->name; o++) {
+ int match = 0;
+
+ if (name) {
+ if (!strcmp(name, o->name) ||
+ (o->alias && !strcmp(name, o->alias)))
+ match = 1;
+ else {
+ unsigned int dist;
+
+ dist = string_distance(name, o->name);
+ if (dist < best_dist) {
+ best_dist = dist;
+ closest = o;
+ }
+ }
+ }
+
+ if (show_all || match) {
+ found = 1;
+ if (match)
+ printf("%20s: %s\n", o->name, o->help);
+ if (show_all) {
+ printf("%-20s: %s\n", o->name, o->help);
+ continue;
+ }
+ }
+
+ if (!match)
+ continue;
+
+ show_option_help(o);
+ }
+
+ if (found)
+ return 0;
+
+ printf("No such command: %s", name);
+ if (closest) {
+ printf(" - showing closest match\n");
+ printf("%20s: %s\n", closest->name, closest->help);
+ show_option_help(closest);
+ } else
+ printf("\n");
+
return 1;
}
+
+/*
+ * Handle parsing of default parameters.
+ */
+void fill_default_options(void *data, struct fio_option *options)
+{
+ 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->type == FIO_OPT_STR_SET && o->def)
+ fprintf(stderr, "Option %s: string set option with default will always be true\n", o->name);
+ if (!o->cb && !o->off1)
+ fprintf(stderr, "Option %s: neither cb nor offset given\n", o->name);
+ if (o->type == FIO_OPT_STR || o->type == FIO_OPT_STR_STORE)
+ 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