Fix compilation on centos 7
[fio.git] / parse.c
diff --git a/parse.c b/parse.c
index bb138e55f967fbeb6aa09690b79fa4b18092cbb4..194ad594779a59a6de8104939fd5b7ef5dc1f69a 100644 (file)
--- a/parse.c
+++ b/parse.c
@@ -3,19 +3,46 @@
  */
 #include <stdio.h>
 #include <stdlib.h>
-#include <unistd.h>
 #include <ctype.h>
 #include <string.h>
 #include <errno.h>
 #include <limits.h>
-#include <stdlib.h>
+#include <float.h>
 
+#include "compiler/compiler.h"
 #include "parse.h"
 #include "debug.h"
+#include "log.h"
 #include "options.h"
-
-static struct fio_option *fio_options;
-extern unsigned int fio_get_kb_base(void *);
+#include "optgroup.h"
+#include "minmax.h"
+#include "lib/ieee754.h"
+#include "lib/pow2.h"
+
+#ifdef CONFIG_ARITHMETIC
+#include "y.tab.h"
+#endif
+
+static const char *opt_type_names[] = {
+       "OPT_INVALID",
+       "OPT_STR",
+       "OPT_STR_ULL",
+       "OPT_STR_MULTI",
+       "OPT_STR_VAL",
+       "OPT_STR_VAL_TIME",
+       "OPT_STR_STORE",
+       "OPT_RANGE",
+       "OPT_INT",
+       "OPT_ULL",
+       "OPT_BOOL",
+       "OPT_FLOAT_LIST",
+       "OPT_STR_SET",
+       "OPT_DEPRECATED",
+       "OPT_SOFT_DEPRECATED",
+       "OPT_UNSUPPORTED",
+};
+
+static const struct fio_option *__fio_options;
 
 static int vp_cmp(const void *p1, const void *p2)
 {
@@ -25,7 +52,7 @@ static int vp_cmp(const void *p1, const void *p2)
        return strlen(vp2->ival) - strlen(vp1->ival);
 }
 
-static void posval_sort(struct fio_option *o, struct value_pair *vpmap)
+static void posval_sort(const struct fio_option *o, struct value_pair *vpmap)
 {
        const struct value_pair *vp;
        int entries;
@@ -43,18 +70,34 @@ static void posval_sort(struct fio_option *o, struct value_pair *vpmap)
        qsort(vpmap, entries, sizeof(struct value_pair), vp_cmp);
 }
 
-static void show_option_range(struct fio_option *o, FILE *out)
+static void show_option_range(const struct fio_option *o,
+                             ssize_t (*logger)(const char *format, ...))
 {
-       if (!o->minval && !o->maxval)
-               return;
-
-       fprintf(out, "%20s: min=%d", "range", o->minval);
-       if (o->maxval)
-               fprintf(out, ", max=%d", o->maxval);
-       fprintf(out, "\n");
+       if (o->type == FIO_OPT_FLOAT_LIST) {
+               const char *sep = "";
+               if (!o->minfp && !o->maxfp)
+                       return;
+
+               logger("%20s: ", "range");
+               if (o->minfp != DBL_MIN) {
+                       logger("min=%f", o->minfp);
+                       sep = ", ";
+               }
+               if (o->maxfp != DBL_MAX)
+                       logger("%smax=%f", sep, o->maxfp);
+               logger("\n");
+       } else if (!o->posval[0].ival) {
+               if (!o->minval && !o->maxval)
+                       return;
+
+               logger("%20s: min=%d", "range", o->minval);
+               if (o->maxval)
+                       logger(", max=%d", o->maxval);
+               logger("\n");
+       }
 }
 
-static void show_option_values(struct fio_option *o)
+static void show_option_values(const struct fio_option *o)
 {
        int i;
 
@@ -64,17 +107,17 @@ static void show_option_values(struct fio_option *o)
                if (!vp->ival)
                        continue;
 
-               printf("%20s: %-10s", i == 0 ? "valid values" : "", vp->ival);
+               log_info("%20s: %-10s", i == 0 ? "valid values" : "", vp->ival);
                if (vp->help)
-                       printf(" %s", vp->help);
-               printf("\n");
+                       log_info(" %s", vp->help);
+               log_info("\n");
        }
 
        if (i)
-               printf("\n");
+               log_info("\n");
 }
 
-static void show_option_help(struct fio_option *o, FILE *out)
+static void show_option_help(const struct fio_option *o, int is_err)
 {
        const char *typehelp[] = {
                "invalid",
@@ -86,39 +129,89 @@ static void show_option_help(struct fio_option *o, FILE *out)
                "string with dual range (opt=1k-4k,4k-8k)",
                "integer value (opt=100)",
                "boolean value (opt=1)",
+               "list of floating point values separated by ':' (opt=5.9:7.8)",
                "no argument (opt)",
                "deprecated",
+               "unsupported",
        };
+       ssize_t (*logger)(const char *format, ...);
+
+       if (is_err)
+               logger = log_err;
+       else
+               logger = log_info;
 
        if (o->alias)
-               fprintf(out, "%20s: %s\n", "alias", o->alias);
+               logger("%20s: %s\n", "alias", o->alias);
 
-       fprintf(out, "%20s: %s\n", "type", typehelp[o->type]);
-       fprintf(out, "%20s: %s\n", "default", o->def ? o->def : "no default");
+       logger("%20s: %s\n", "type", typehelp[o->type]);
+       logger("%20s: %s\n", "default", o->def ? o->def : "no default");
        if (o->prof_name)
-               fprintf(out, "%20s: only for profile '%s'\n", "valid", o->prof_name);
-       show_option_range(o, stdout);
+               logger("%20s: only for profile '%s'\n", "valid", o->prof_name);
+       show_option_range(o, logger);
        show_option_values(o);
 }
 
-static unsigned long get_mult_time(char c)
+static unsigned long long get_mult_time(const char *str, int len,
+                                       int is_seconds)
+{
+       const char *p = str;
+       char *c;
+       unsigned long long mult = 1;
+       int i;
+
+       /*
+         * Go forward until we hit a non-digit, or +/- sign
+         */
+       while ((p - str) <= len) {
+               if (!isdigit((int) *p) && (*p != '+') && (*p != '-'))
+                       break;
+               p++;
+       }
+
+       if (!isalpha((int) *p)) {
+               if (is_seconds)
+                       return 1000000UL;
+               else
+                       return 1;
+       }
+
+       c = strdup(p);
+       for (i = 0; i < strlen(c); i++)
+               c[i] = tolower((unsigned char)c[i]);
+
+       if (!strncmp("us", c, 2) || !strncmp("usec", c, 4))
+               mult = 1;
+       else if (!strncmp("ms", c, 2) || !strncmp("msec", c, 4))
+               mult = 1000;
+       else if (!strcmp("s", c))
+               mult = 1000000;
+       else if (!strcmp("m", c))
+               mult = 60 * 1000000UL;
+       else if (!strcmp("h", c))
+               mult = 60 * 60 * 1000000UL;
+       else if (!strcmp("d", c))
+               mult = 24 * 60 * 60 * 1000000ULL;
+
+       free(c);
+       return mult;
+}
+
+static int is_separator(char c)
 {
        switch (c) {
-       case 'm':
-       case 'M':
-               return 60;
-       case 'h':
-       case 'H':
-               return 60 * 60;
-       case 'd':
-       case 'D':
-               return 24 * 60 * 60;
-       default:
+       case ':':
+       case '-':
+       case ',':
+       case '/':
                return 1;
+       default:
+               return 0;
        }
 }
 
-static unsigned long long __get_mult_bytes(const char *p, void *data)
+static unsigned long long __get_mult_bytes(const char *p, void *data,
+                                          int *percent)
 {
        unsigned int kb_base = fio_get_kb_base(data);
        unsigned long long ret = 1;
@@ -130,34 +223,62 @@ static unsigned long long __get_mult_bytes(const char *p, void *data)
 
        c = strdup(p);
 
-       for (i = 0; i < strlen(c); i++)
-               c[i] = tolower(c[i]);
+       for (i = 0; i < strlen(c); i++) {
+               c[i] = tolower((unsigned char)c[i]);
+               if (is_separator(c[i])) {
+                       c[i] = '\0';
+                       break;
+               }
+       }
 
-       if (!strcmp("pib", c)) {
+       /* If kb_base is 1000, use true units.
+        * If kb_base is 1024, use opposite units.
+        */
+       if (!strncmp("pib", c, 3)) {
                pow = 5;
-               mult = 1000;
-       } else if (!strcmp("tib", c)) {
+               if (kb_base == 1000)
+                       mult = 1024;
+               else if (kb_base == 1024)
+                       mult = 1000;
+       } else if (!strncmp("tib", c, 3)) {
                pow = 4;
-               mult = 1000;
-       } else if (!strcmp("gib", c)) {
+               if (kb_base == 1000)
+                       mult = 1024;
+               else if (kb_base == 1024)
+                       mult = 1000;
+       } else if (!strncmp("gib", c, 3)) {
                pow = 3;
-               mult = 1000;
-       } else if (!strcmp("mib", c)) {
+               if (kb_base == 1000)
+                       mult = 1024;
+               else if (kb_base == 1024)
+                       mult = 1000;
+       } else if (!strncmp("mib", c, 3)) {
                pow = 2;
-               mult = 1000;
-       } else if (!strcmp("kib", c)) {
+               if (kb_base == 1000)
+                       mult = 1024;
+               else if (kb_base == 1024)
+                       mult = 1000;
+       } else if (!strncmp("kib", c, 3)) {
                pow = 1;
-               mult = 1000;
-       } else if (!strcmp("p", c) || !strcmp("pb", c))
+               if (kb_base == 1000)
+                       mult = 1024;
+               else if (kb_base == 1024)
+                       mult = 1000;
+       } else if (!strncmp("p", c, 1) || !strncmp("pb", c, 2)) {
                pow = 5;
-       else if (!strcmp("t", c) || !strcmp("tb", c))
+       } else if (!strncmp("t", c, 1) || !strncmp("tb", c, 2)) {
                pow = 4;
-       else if (!strcmp("g", c) || !strcmp("gb", c))
+       } else if (!strncmp("g", c, 1) || !strncmp("gb", c, 2)) {
                pow = 3;
-       else if (!strcmp("m", c) || !strcmp("mb", c))
+       } else if (!strncmp("m", c, 1) || !strncmp("mb", c, 2)) {
                pow = 2;
-       else if (!strcmp("k", c) || !strcmp("kb", c))
+       } else if (!strncmp("k", c, 1) || !strncmp("kb", c, 2)) {
                pow = 1;
+       } else if (!strncmp("%", c, 1)) {
+               *percent = 1;
+               free(c);
+               return ret;
+       }
 
        while (pow--)
                ret *= (unsigned long long) mult;
@@ -166,70 +287,131 @@ static unsigned long long __get_mult_bytes(const char *p, void *data)
        return ret;
 }
 
-static unsigned long long get_mult_bytes(const char *str, int len, void *data)
+static unsigned long long get_mult_bytes(const char *str, int len, void *data,
+                                        int *percent)
 {
-       const char *p;
+       const char *p = str;
+       int digit_seen = 0;
 
        if (len < 2)
-               return __get_mult_bytes(str, data);
+               return __get_mult_bytes(str, data, percent);
 
        /*
-        * if the last char is 'b' or 'B', the user likely used
-        * "1gb" instead of just "1g". If the second to last is also
-        * a letter, adjust.
+        * Go forward until we hit a non-digit, or +/- sign
         */
-       p = str + len - 1;
-       while (isalpha(*(p - 1)))
-               p--;
-       if (!isalpha(*p))
+       while ((p - str) <= len) {
+               if (!isdigit((int) *p) &&
+                   (((*p != '+') && (*p != '-')) || digit_seen))
+                       break;
+               digit_seen |= isdigit((int) *p);
+               p++;
+       }
+
+       if (!isalpha((int) *p) && (*p != '%'))
                p = NULL;
 
-       return __get_mult_bytes(p, data);
+       return __get_mult_bytes(p, data, percent);
+}
+
+extern int evaluate_arithmetic_expression(const char *buffer, long long *ival,
+                                         double *dval, double implied_units,
+                                         int is_time);
+
+/*
+ * Convert string into a floating number. Return 1 for success and 0 otherwise.
+ */
+int str_to_float(const char *str, double *val, int is_time)
+{
+#ifdef CONFIG_ARITHMETIC
+       int rc;
+       long long ival;
+       double dval;
+
+       if (str[0] == '(') {
+               rc = evaluate_arithmetic_expression(str, &ival, &dval, 1.0, is_time);
+               if (!rc) {
+                       *val = dval;
+                       return 1;
+               }
+       }
+#endif
+       return 1 == sscanf(str, "%lf", val);
 }
 
 /*
  * convert string into decimal value, noting any size suffix
  */
-int str_to_decimal(const char *str, long long *val, int kilo, void *data)
+int str_to_decimal(const char *str, long long *val, int kilo, void *data,
+                  int is_seconds, int is_time)
 {
        int len, base;
+       int rc = 1;
+#ifdef CONFIG_ARITHMETIC
+       long long ival;
+       double dval;
+       double implied_units = 1.0;
+#endif
 
        len = strlen(str);
        if (!len)
                return 1;
 
-       if (strstr(str, "0x") || strstr(str, "0X"))
-               base = 16;
-       else
-               base = 10;
+#ifdef CONFIG_ARITHMETIC
+       if (is_seconds)
+               implied_units = 1000000.0;
+       if (str[0] == '(')
+               rc = evaluate_arithmetic_expression(str, &ival, &dval, implied_units, is_time);
+       if (str[0] == '(' && !rc) {
+               if (!kilo && is_seconds)
+                       *val = ival / 1000000LL;
+               else
+                       *val = ival;
+       }
+#endif
 
-       *val = strtoll(str, NULL, base);
-       if (*val == LONG_MAX && errno == ERANGE)
-               return 1;
+       if (rc == 1) {
+               if (strstr(str, "0x") || strstr(str, "0X"))
+                       base = 16;
+               else
+                       base = 10;
 
-       if (kilo)
-               *val *= get_mult_bytes(str, len, data);
-       else
-               *val *= get_mult_time(str[len - 1]);
+               *val = strtoll(str, NULL, base);
+               if (*val == LONG_MAX && errno == ERANGE)
+                       return 1;
+       }
+
+       if (kilo) {
+               unsigned long long mult;
+               int perc = 0;
+
+               mult = get_mult_bytes(str, len, data, &perc);
+               if (perc)
+                       *val = -1ULL - *val;
+               else
+                       *val *= mult;
+       } else
+               *val *= get_mult_time(str, len, is_seconds);
 
        return 0;
 }
 
-static int check_str_bytes(const char *p, long long *val, void *data)
+int check_str_bytes(const char *p, long long *val, void *data)
 {
-       return str_to_decimal(p, val, 1, data);
+       return str_to_decimal(p, val, 1, data, 0, 0);
 }
 
-static int check_str_time(const char *p, long long *val)
+int check_str_time(const char *p, long long *val, int is_seconds)
 {
-       return str_to_decimal(p, val, 0, NULL);
+       return str_to_decimal(p, val, 0, NULL, is_seconds, 1);
 }
 
 void strip_blank_front(char **p)
 {
        char *s = *p;
 
-       while (isspace(*s))
+       if (!strlen(s))
+               return;
+       while (isspace((int) *s))
                s++;
 
        *p = s;
@@ -239,6 +421,9 @@ void strip_blank_end(char *p)
 {
        char *start = p, *s;
 
+       if (!strlen(p))
+               return;
+
        s = strchr(p, ';');
        if (s)
                *s = '\0';
@@ -249,17 +434,17 @@ void strip_blank_end(char *p)
                p = s;
 
        s = p + strlen(p);
-       while ((isspace(*s) || iscntrl(*s)) && (s > start))
+       while ((isspace((int) *s) || iscntrl((int) *s)) && (s > start))
                s--;
 
        *(s + 1) = '\0';
 }
 
-static int check_range_bytes(const char *str, long *val, void *data)
+static int check_range_bytes(const char *str, long long *val, void *data)
 {
        long long __val;
 
-       if (!str_to_decimal(str, &__val, 1, data)) {
+       if (!str_to_decimal(str, &__val, 1, data, 0, 0)) {
                *val = __val;
                return 0;
        }
@@ -282,7 +467,7 @@ static int check_int(const char *p, int *val)
        return 1;
 }
 
-static int opt_len(const char *str)
+static size_t opt_len(const char *str)
 {
        char *postfix;
 
@@ -293,39 +478,59 @@ static int opt_len(const char *str)
        return (int)(postfix - str);
 }
 
-#define val_store(ptr, val, off, or, data)             \
+static int str_match_len(const struct value_pair *vp, const char *str)
+{
+       return max(strlen(vp->ival), opt_len(str));
+}
+
+#define val_store(ptr, val, off, or, data, o)          \
        do {                                            \
-               ptr = td_var((data), (off));            \
+               ptr = td_var((data), (o), (off));       \
                if ((or))                               \
                        *ptr |= (val);                  \
                else                                    \
                        *ptr = (val);                   \
        } while (0)
 
-static int __handle_option(struct fio_option *o, const char *ptr, void *data,
-                          int first, int more)
+static const char *opt_type_name(const struct fio_option *o)
+{
+       compiletime_assert(ARRAY_SIZE(opt_type_names) - 1 == FIO_OPT_UNSUPPORTED,
+                               "opt_type_names[] index");
+
+       if (o->type <= FIO_OPT_UNSUPPORTED)
+               return opt_type_names[o->type];
+
+       return "OPT_UNKNOWN?";
+}
+
+static int __handle_option(const struct fio_option *o, const char *ptr,
+                          void *data, int first, int more, int curr)
 {
-       int il, *ilp;
+       int il=0, *ilp;
+       fio_fp64_t *flp;
        long long ull, *ullp;
-       long ul1, ul2;
-       char **cp;
+       long ul2;
+       long long ull1, ull2;
+       double uf;
+       char **cp = NULL;
        int ret = 0, is_time = 0;
+       const struct value_pair *vp;
+       struct value_pair posval[PARSE_MAX_VP];
+       int i, all_skipped = 1;
 
-       dprint(FD_PARSE, "__handle_option=%s, type=%d, ptr=%s\n", o->name,
-                                                       o->type, ptr);
+       dprint(FD_PARSE, "__handle_option=%s, type=%s, ptr=%s\n", o->name,
+                                                       opt_type_name(o), ptr);
 
        if (!ptr && o->type != FIO_OPT_STR_SET && o->type != FIO_OPT_STR) {
-               fprintf(stderr, "Option %s requires an argument\n", o->name);
+               log_err("Option %s requires an argument\n", o->name);
                return 1;
        }
 
        switch (o->type) {
        case FIO_OPT_STR:
+       case FIO_OPT_STR_ULL:
        case FIO_OPT_STR_MULTI: {
                fio_opt_str_fn *fn = o->cb;
-               const struct value_pair *vp;
-               struct value_pair posval[PARSE_MAX_VP];
-               int i, all_skipped = 1;
 
                posval_sort(o, posval);
 
@@ -335,18 +540,16 @@ static int __handle_option(struct fio_option *o, const char *ptr, void *data,
                        if (!vp->ival || vp->ival[0] == '\0')
                                continue;
                        all_skipped = 0;
-                       if (!strncmp(vp->ival, ptr, opt_len(ptr))) {
+                       if (!ptr)
+                               break;
+                       if (!strncmp(vp->ival, ptr, str_match_len(vp, ptr))) {
                                ret = 0;
-                               if (o->roff1) {
-                                       if (vp->or)
-                                               *(unsigned int *) o->roff1 |= vp->oval;
-                                       else
-                                               *(unsigned int *) o->roff1 = vp->oval;
-                               } else {
-                                       if (!o->off1)
-                                               continue;
-                                       val_store(ilp, vp->oval, o->off1, vp->or, data);
-                               }
+                               if (!o->off1)
+                                       continue;
+                               if (o->type == FIO_OPT_STR_ULL)
+                                       val_store(ullp, vp->oval, o->off1, vp->orval, data, o);
+                               else
+                                       val_store(ilp, vp->oval, o->off1, vp->orval, data, o);
                                continue;
                        }
                }
@@ -359,86 +562,251 @@ static int __handle_option(struct fio_option *o, const char *ptr, void *data,
        }
        case FIO_OPT_STR_VAL_TIME:
                is_time = 1;
+               /* fall through */
+       case FIO_OPT_ULL:
        case FIO_OPT_INT:
        case FIO_OPT_STR_VAL: {
                fio_opt_str_val_fn *fn = o->cb;
+               char tmp[128], *p;
+
+               if (!is_time && o->is_time)
+                       is_time = o->is_time;
+
+               tmp[sizeof(tmp) - 1] = '\0';
+               strncpy(tmp, ptr, sizeof(tmp) - 1);
+               p = strchr(tmp, ',');
+               if (p)
+                       *p = '\0';
 
                if (is_time)
-                       ret = check_str_time(ptr, &ull);
+                       ret = check_str_time(tmp, &ull, o->is_seconds);
                else
-                       ret = check_str_bytes(ptr, &ull, data);
+                       ret = check_str_bytes(tmp, &ull, data);
+
+               dprint(FD_PARSE, "  ret=%d, out=%llu\n", ret, ull);
 
                if (ret)
                        break;
+               if (o->pow2 && !is_power_of_2(ull)) {
+                       log_err("%s: must be a power-of-2\n", o->name);
+                       return 1;
+               }
 
                if (o->maxval && ull > o->maxval) {
-                       fprintf(stderr, "max value out of range: %lld"
-                                       " (%d max)\n", ull, o->maxval);
+                       log_err("max value out of range: %llu"
+                                       " (%llu max)\n", ull, o->maxval);
                        return 1;
                }
                if (o->minval && ull < o->minval) {
-                       fprintf(stderr, "min value out of range: %lld"
+                       log_err("min value out of range: %lld"
                                        " (%d min)\n", ull, o->minval);
                        return 1;
                }
+               if (o->posval[0].ival) {
+                       posval_sort(o, posval);
+
+                       ret = 1;
+                       for (i = 0; i < PARSE_MAX_VP; i++) {
+                               vp = &posval[i];
+                               if (!vp->ival || vp->ival[0] == '\0')
+                                       continue;
+                               if (vp->oval == ull) {
+                                       ret = 0;
+                                       break;
+                               }
+                       }
+                       if (ret) {
+                               log_err("fio: value %llu not allowed:\n", ull);
+                               show_option_values(o);
+                               return 1;
+                       }
+               }
 
                if (fn)
                        ret = fn(data, &ull);
                else {
                        if (o->type == FIO_OPT_INT) {
-                               if (first) {
-                                       if (o->roff1)
-                                               *(unsigned int *) o->roff1 = ull;
-                                       else
-                                               val_store(ilp, ull, o->off1, 0, data);
+                               if (first)
+                                       val_store(ilp, ull, o->off1, 0, data, o);
+                               if (curr == 1) {
+                                       if (o->off2)
+                                               val_store(ilp, ull, o->off2, 0, data, o);
+                               }
+                               if (curr == 2) {
+                                       if (o->off3)
+                                               val_store(ilp, ull, o->off3, 0, data, o);
                                }
                                if (!more) {
-                                       if (o->roff2)
-                                               *(unsigned int *) o->roff2 = ull;
-                                       else if (o->off2)
-                                               val_store(ilp, ull, o->off2, 0, data);
+                                       if (curr < 1) {
+                                               if (o->off2)
+                                                       val_store(ilp, ull, o->off2, 0, data, o);
+                                       }
+                                       if (curr < 2) {
+                                               if (o->off3)
+                                                       val_store(ilp, ull, o->off3, 0, data, o);
+                                       }
                                }
-                       } else {
-                               if (first) {
-                                       if (o->roff1)
-                                               *(unsigned long long *) o->roff1 = ull;
-                                       else
-                                               val_store(ullp, ull, o->off1, 0, data);
+                       } else if (o->type == FIO_OPT_ULL) {
+                               if (first)
+                                       val_store(ullp, ull, o->off1, 0, data, o);
+                               if (curr == 1) {
+                                       if (o->off2)
+                                               val_store(ullp, ull, o->off2, 0, data, o);
+                               }
+                               if (curr == 2) {
+                                       if (o->off3)
+                                               val_store(ullp, ull, o->off3, 0, data, o);
+                               }
+                               if (!more) {
+                                       if (curr < 1) {
+                                               if (o->off2)
+                                                       val_store(ullp, ull, o->off2, 0, data, o);
+                                       }
+                                       if (curr < 2) {
+                                               if (o->off3)
+                                                       val_store(ullp, ull, o->off3, 0, data, o);
+                                       }
                                }
+                       } else {
+                               if (first)
+                                       val_store(ullp, ull, o->off1, 0, data, o);
                                if (!more) {
-                                       if (o->roff2)
-                                               *(unsigned long long *) o->roff2 =  ull;
-                                       else if (o->off2)
-                                               val_store(ullp, ull, o->off2, 0, data);
+                                       if (o->off2)
+                                               val_store(ullp, ull, o->off2, 0, data, o);
                                }
                        }
                }
                break;
        }
+       case FIO_OPT_FLOAT_LIST: {
+               char *cp2;
+
+               if (first) {
+                       /*
+                       ** Initialize precision to 0 and zero out list
+                       ** in case specified list is shorter than default
+                       */
+                       if (o->off2) {
+                               ul2 = 0;
+                               ilp = td_var(data, o, o->off2);
+                               *ilp = ul2;
+                       }
+
+                       flp = td_var(data, o, o->off1);
+                       for(i = 0; i < o->maxlen; i++)
+                               flp[i].u.f = 0.0;
+               }
+               if (curr >= o->maxlen) {
+                       log_err("the list exceeding max length %d\n",
+                                       o->maxlen);
+                       return 1;
+               }
+               if (!str_to_float(ptr, &uf, 0)) { /* this breaks if we ever have lists of times */
+                       log_err("not a floating point value: %s\n", ptr);
+                       return 1;
+               }
+               if (o->minfp || o->maxfp) {
+                       if (uf > o->maxfp) {
+                               log_err("value out of range: %f"
+                                       " (range max: %f)\n", uf, o->maxfp);
+                               return 1;
+                       }
+                       if (uf < o->minfp) {
+                               log_err("value out of range: %f"
+                                       " (range min: %f)\n", uf, o->minfp);
+                               return 1;
+                       }
+               }
+
+               flp = td_var(data, o, o->off1);
+               flp[curr].u.f = uf;
+
+               dprint(FD_PARSE, "  out=%f\n", uf);
+
+               /*
+               ** Calculate precision for output by counting
+               ** number of digits after period. Find first
+               ** period in entire remaining list each time
+               */
+               cp2 = strchr(ptr, '.');
+               if (cp2 != NULL) {
+                       int len = 0;
+
+                       while (*++cp2 != '\0' && *cp2 >= '0' && *cp2 <= '9')
+                               len++;
+
+                       if (o->off2) {
+                               ilp = td_var(data, o, o->off2);
+                               if (len > *ilp)
+                                       *ilp = len;
+                       }
+               }
+
+               break;
+       }
        case FIO_OPT_STR_STORE: {
                fio_opt_str_fn *fn = o->cb;
 
-               if (o->roff1)
-                       cp = (char **) o->roff1;
-               else
-                       cp = td_var(data, o->off1);
+               if (!strlen(ptr))
+                       return 1;
 
-               *cp = strdup(ptr);
-               if (fn) {
+               if (o->off1) {
+                       cp = td_var(data, o, o->off1);
+                       *cp = strdup(ptr);
+               }
+
+               if (fn)
                        ret = fn(data, ptr);
-                       if (ret) {
-                               free(*cp);
-                               *cp = NULL;
+               else if (o->posval[0].ival) {
+                       posval_sort(o, posval);
+
+                       ret = 1;
+                       for (i = 0; i < PARSE_MAX_VP; i++) {
+                               vp = &posval[i];
+                               if (!vp->ival || vp->ival[0] == '\0' || !cp)
+                                       continue;
+                               all_skipped = 0;
+                               if (!strncmp(vp->ival, ptr, str_match_len(vp, ptr))) {
+                                       char *rest;
+
+                                       ret = 0;
+                                       if (vp->cb)
+                                               fn = vp->cb;
+                                       rest = strstr(*cp ?: ptr, ":");
+                                       if (rest) {
+                                               if (*cp)
+                                                       *rest = '\0';
+                                               ptr = rest + 1;
+                                       } else
+                                               ptr = NULL;
+                                       break;
+                               }
                        }
                }
+
+               if (!all_skipped) {
+                       if (ret && !*cp)
+                               show_option_values(o);
+                       else if (ret && *cp)
+                               ret = 0;
+                       else if (fn && ptr)
+                               ret = fn(data, ptr);
+               }
+
                break;
        }
        case FIO_OPT_RANGE: {
                char tmp[128];
                char *p1, *p2;
 
+               tmp[sizeof(tmp) - 1] = '\0';
                strncpy(tmp, ptr, sizeof(tmp) - 1);
 
+               /* Handle bsrange with separate read,write values: */
+               p1 = strchr(tmp, ',');
+               if (p1)
+                       *p1 = '\0';
+
                p1 = strchr(tmp, '-');
                if (!p1) {
                        p1 = strchr(tmp, ':');
@@ -453,51 +821,73 @@ static int __handle_option(struct fio_option *o, const char *ptr, void *data,
                p1 = tmp;
 
                ret = 1;
-               if (!check_range_bytes(p1, &ul1, data) &&
-                   !check_range_bytes(p2, &ul2, data)) {
+               if (!check_range_bytes(p1, &ull1, data) &&
+                       !check_range_bytes(p2, &ull2, data)) {
                        ret = 0;
-                       if (ul1 > ul2) {
-                               unsigned long foo = ul1;
+                       if (ull1 > ull2) {
+                               unsigned long long foo = ull1;
 
-                               ul1 = ul2;
-                               ul2 = foo;
+                               ull1 = ull2;
+                               ull2 = foo;
                        }
 
                        if (first) {
-                               if (o->roff1)
-                                       *(unsigned int *) o->roff1 = ul1;
-                               else
-                                       val_store(ilp, ul1, o->off1, 0, data);
-                               if (o->roff2)
-                                       *(unsigned int *) o->roff2 = ul2;
-                               else
-                                       val_store(ilp, ul2, o->off2, 0, data);
+                               val_store(ullp, ull1, o->off1, 0, data, o);
+                               val_store(ullp, ull2, o->off2, 0, data, o);
+                       }
+                       if (curr == 1) {
+                               if (o->off3 && o->off4) {
+                                       val_store(ullp, ull1, o->off3, 0, data, o);
+                                       val_store(ullp, ull2, o->off4, 0, data, o);
+                               }
+                       }
+                       if (curr == 2) {
+                               if (o->off5 && o->off6) {
+                                       val_store(ullp, ull1, o->off5, 0, data, o);
+                                       val_store(ullp, ull2, o->off6, 0, data, o);
+                               }
                        }
-                       if (o->roff3 && o->roff4) {
-                               *(unsigned int *) o->roff3 = ul1;
-                               *(unsigned int *) o->roff4 = ul2;
-                       } else if (o->off3 && o->off4) {
-                               val_store(ilp, ul1, o->off3, 0, data);
-                               val_store(ilp, ul2, o->off4, 0, data);
+                       if (!more) {
+                               if (curr < 1) {
+                                       if (o->off3 && o->off4) {
+                                               val_store(ullp, ull1, o->off3, 0, data, o);
+                                               val_store(ullp, ull2, o->off4, 0, data, o);
+                                       }
+                               }
+                               if (curr < 2) {
+                                       if (o->off5 && o->off6) {
+                                               val_store(ullp, ull1, o->off5, 0, data, o);
+                                               val_store(ullp, ull2, o->off6, 0, data, o);
+                                       }
+                               }
                        }
                }
 
                break;
        }
-       case FIO_OPT_BOOL: {
+       case FIO_OPT_BOOL:
+       case FIO_OPT_STR_SET: {
                fio_opt_int_fn *fn = o->cb;
 
-               ret = check_int(ptr, &il);
+               if (ptr)
+                       ret = check_int(ptr, &il);
+               else if (o->type == FIO_OPT_BOOL)
+                       ret = 1;
+               else
+                       il = 1;
+
+               dprint(FD_PARSE, "  ret=%d, out=%d\n", ret, il);
+
                if (ret)
                        break;
 
                if (o->maxval && il > (int) o->maxval) {
-                       fprintf(stderr, "max value out of range: %d (%d max)\n",
+                       log_err("max value out of range: %d (%llu max)\n",
                                                                il, o->maxval);
                        return 1;
                }
                if (o->minval && il < o->minval) {
-                       fprintf(stderr, "min value out of range: %d (%d min)\n",
+                       log_err("min value out of range: %d (%d min)\n",
                                                                il, o->minval);
                        return 1;
                }
@@ -508,47 +898,23 @@ static int __handle_option(struct fio_option *o, const char *ptr, void *data,
                if (fn)
                        ret = fn(data, &il);
                else {
-                       if (first) {
-                               if (o->roff1)
-                                       *(unsigned int *)o->roff1 = il;
-                               else
-                                       val_store(ilp, il, o->off1, 0, data);
-                       }
+                       if (first)
+                               val_store(ilp, il, o->off1, 0, data, o);
                        if (!more) {
-                               if (o->roff2)
-                                       *(unsigned int *) o->roff2 = il;
-                               else if (o->off2)
-                                       val_store(ilp, il, o->off2, 0, data);
-                       }
-               }
-               break;
-       }
-       case FIO_OPT_STR_SET: {
-               fio_opt_str_set_fn *fn = o->cb;
-
-               if (fn)
-                       ret = fn(data);
-               else {
-                       if (first) {
-                               if (o->roff1)
-                                       *(unsigned int *) o->roff1 = 1;
-                               else
-                                       val_store(ilp, 1, o->off1, 0, data);
-                       }
-                       if (!more) {
-                               if (o->roff2)
-                                       *(unsigned int *) o->roff2 = 1;
-                               else if (o->off2)
-                                       val_store(ilp, 1, o->off2, 0, data);
+                               if (o->off2)
+                                       val_store(ilp, il, o->off2, 0, data, o);
                        }
                }
                break;
        }
        case FIO_OPT_DEPRECATED:
-               fprintf(stdout, "Option %s is deprecated\n", o->name);
+               ret = 1;
+               /* fall through */
+       case FIO_OPT_SOFT_DEPRECATED:
+               log_info("Option %s is deprecated\n", o->name);
                break;
        default:
-               fprintf(stderr, "Bad option type %u\n", o->type);
+               log_err("Bad option type %u\n", o->type);
                ret = 1;
        }
 
@@ -558,16 +924,17 @@ static int __handle_option(struct fio_option *o, const char *ptr, void *data,
        if (o->verify) {
                ret = o->verify(o, data);
                if (ret) {
-                       fprintf(stderr,"Correct format for offending option\n");
-                       fprintf(stderr, "%20s: %s\n", o->name, o->help);
-                       show_option_help(o, stderr);
+                       log_err("Correct format for offending option\n");
+                       log_err("%20s: %s\n", o->name, o->help);
+                       show_option_help(o, 1);
                }
        }
 
        return ret;
 }
 
-static int handle_option(struct fio_option *o, const char *__ptr, void *data)
+static int handle_option(const struct fio_option *o, const char *__ptr,
+                        void *data)
 {
        char *o_ptr, *ptr, *ptr2;
        int ret, done;
@@ -591,16 +958,19 @@ static int handle_option(struct fio_option *o, const char *__ptr, void *data)
                ptr2 = NULL;
                if (ptr &&
                    (o->type != FIO_OPT_STR_STORE) &&
-                   (o->type != FIO_OPT_STR)) {
+                   (o->type != FIO_OPT_STR) &&
+                   (o->type != FIO_OPT_FLOAT_LIST)) {
                        ptr2 = strchr(ptr, ',');
                        if (ptr2 && *(ptr2 + 1) == '\0')
                                *ptr2 = '\0';
-                       if (o->type != FIO_OPT_STR_MULTI) {
+                       if (o->type != FIO_OPT_STR_MULTI && o->type != FIO_OPT_RANGE) {
                                if (!ptr2)
                                        ptr2 = strchr(ptr, ':');
                                if (!ptr2)
                                        ptr2 = strchr(ptr, '-');
                        }
+               } else if (ptr && o->type == FIO_OPT_FLOAT_LIST) {
+                       ptr2 = strchr(ptr, ':');
                }
 
                /*
@@ -608,7 +978,7 @@ static int handle_option(struct fio_option *o, const char *__ptr, void *data)
                 * we are doing multiple arguments, we can allow the first one
                 * being empty.
                 */
-               __ret = __handle_option(o, ptr, data, !done, !!ptr2);
+               __ret = __handle_option(o, ptr, data, !done, !!ptr2, done);
                if (ret)
                        ret = __ret;
 
@@ -624,22 +994,46 @@ static int handle_option(struct fio_option *o, const char *__ptr, void *data)
        return ret;
 }
 
-static struct fio_option *get_option(const char *opt,
-                                    struct fio_option *options, char **post)
+struct fio_option *find_option(struct fio_option *options, const char *opt)
 {
        struct fio_option *o;
+
+       for (o = &options[0]; o->name; o++) {
+               if (!o_match(o, opt))
+                       continue;
+               if (o->type == FIO_OPT_UNSUPPORTED) {
+                       log_err("Option <%s>: %s\n", o->name, o->help);
+                       continue;
+               }
+
+               return o;
+       }
+
+       return NULL;
+}
+
+const struct fio_option *
+find_option_c(const struct fio_option *options, const char *opt)
+{
+       return find_option((struct fio_option *)options, opt);
+}
+
+static const struct fio_option *
+get_option(char *opt, const struct fio_option *options, char **post)
+{
+       const struct fio_option *o;
        char *ret;
 
        ret = strchr(opt, '=');
        if (ret) {
                *post = ret;
                *ret = '\0';
-               ret = (char *) opt;
+               ret = opt;
                (*post)++;
                strip_blank_end(ret);
-               o = find_option(options, ret);
+               o = find_option_c(options, ret);
        } else {
-               o = find_option(options, opt);
+               o = find_option_c(options, opt);
                *post = NULL;
        }
 
@@ -648,137 +1042,113 @@ static struct fio_option *get_option(const char *opt,
 
 static int opt_cmp(const void *p1, const void *p2)
 {
-       struct fio_option *o1, *o2;
-       char *s1, *s2, *foo;
+       const struct fio_option *o;
+       char *s, *foo;
        int prio1, prio2;
 
-       s1 = strdup(*((char **) p1));
-       s2 = strdup(*((char **) p2));
-
-       o1 = get_option(s1, fio_options, &foo);
-       o2 = get_option(s2, fio_options, &foo);
-
        prio1 = prio2 = 0;
-       if (o1)
-               prio1 = o1->prio;
-       if (o2)
-               prio2 = o2->prio;
 
-       free(s1);
-       free(s2);
+       if (*(char **)p1) {
+               s = strdup(*((char **) p1));
+               o = get_option(s, __fio_options, &foo);
+               if (o)
+                       prio1 = o->prio;
+               free(s);
+       }
+       if (*(char **)p2) {
+               s = strdup(*((char **) p2));
+               o = get_option(s, __fio_options, &foo);
+               if (o)
+                       prio2 = o->prio;
+               free(s);
+       }
+
        return prio2 - prio1;
 }
 
-void sort_options(char **opts, struct fio_option *options, int num_opts)
+void sort_options(char **opts, const struct fio_option *options, int num_opts)
 {
-       fio_options = options;
+       __fio_options = options;
        qsort(opts, num_opts, sizeof(char *), opt_cmp);
-       fio_options = NULL;
+       __fio_options = NULL;
 }
 
-int parse_cmd_option(const char *opt, const char *val,
-                    struct fio_option *options, void *data)
+static void add_to_dump_list(const struct fio_option *o,
+                            struct flist_head *dump_list, const char *post)
 {
-       struct fio_option *o;
+       struct print_option *p;
 
-       o = find_option(options, opt);
-       if (!o) {
-               fprintf(stderr, "Bad option <%s>\n", opt);
-               return 1;
-       }
+       if (!dump_list)
+               return;
 
-       if (!handle_option(o, val, data))
-               return 0;
+       p = malloc(sizeof(*p));
+       p->name = strdup(o->name);
+       if (post)
+               p->value = strdup(post);
+       else
+               p->value = NULL;
 
-       fprintf(stderr, "fio: failed parsing %s=%s\n", opt, val);
-       return 1;
+       flist_add_tail(&p->list, dump_list);
 }
 
-/*
- * Return a copy of the input string with substrings of the form ${VARNAME}
- * substituted with the value of the environment variable VARNAME.  The
- * substitution always occurs, even if VARNAME is empty or the corresponding
- * environment variable undefined.
- */
-static char *option_dup_subs(const char *opt)
-{
-       char out[OPT_LEN_MAX+1];
-       char in[OPT_LEN_MAX+1];
-       char *outptr = out;
-       char *inptr = in;
-       char *ch1, *ch2, *env;
-       ssize_t nchr = OPT_LEN_MAX;
-       size_t envlen;
-
-       if (strlen(opt) + 1 > OPT_LEN_MAX) {
-               fprintf(stderr, "OPT_LEN_MAX (%d) is too small\n", OPT_LEN_MAX);
-               return NULL;
-       }
-
-       in[OPT_LEN_MAX] = '\0';
-       strncpy(in, opt, OPT_LEN_MAX);
-
-       while (*inptr && nchr > 0) {
-               if (inptr[0] == '$' && inptr[1] == '{') {
-                       ch2 = strchr(inptr, '}');
-                       if (ch2 && inptr+1 < ch2) {
-                               ch1 = inptr+2;
-                               inptr = ch2+1;
-                               *ch2 = '\0';
-
-                               env = getenv(ch1);
-                               if (env) {
-                                       envlen = strlen(env);
-                                       if (envlen <= nchr) {
-                                               memcpy(outptr, env, envlen);
-                                               outptr += envlen;
-                                               nchr -= envlen;
-                                       }
-                               }
+int parse_cmd_option(const char *opt, const char *val,
+                    const struct fio_option *options, void *data,
+                    struct flist_head *dump_list)
+{
+       const struct fio_option *o;
 
-                               continue;
-                       }
-               }
+       o = find_option_c(options, opt);
+       if (!o) {
+               log_err("Bad option <%s>\n", opt);
+               return 1;
+       }
 
-               *outptr++ = *inptr++;
-               --nchr;
+       if (handle_option(o, val, data)) {
+               log_err("fio: failed parsing %s=%s\n", opt, val);
+               return 1;
        }
 
-       *outptr = '\0';
-       return strdup(out);
+       add_to_dump_list(o, dump_list, val);
+       return 0;
 }
 
-int parse_option(const char *opt, struct fio_option *options, void *data)
+int parse_option(char *opt, const char *input, const struct fio_option *options,
+                const struct fio_option **o, void *data,
+                struct flist_head *dump_list)
 {
-       struct fio_option *o;
-       char *post, *tmp;
+       char *post;
 
-       tmp = option_dup_subs(opt);
-       if (!tmp)
+       if (!opt) {
+               log_err("fio: failed parsing %s\n", input);
+               *o = NULL;
                return 1;
+       }
 
-       o = get_option(tmp, options, &post);
-       if (!o) {
-               fprintf(stderr, "Bad option <%s>\n", tmp);
-               free(tmp);
+       *o = get_option(opt, options, &post);
+       if (!*o) {
+               if (post) {
+                       int len = strlen(opt);
+                       if (opt + len + 1 != post)
+                               memmove(opt + len + 1, post, strlen(post));
+                       opt[len] = '=';
+               }
                return 1;
        }
 
-       if (!handle_option(o, post, data)) {
-               free(tmp);
-               return 0;
+       if (handle_option(*o, post, data)) {
+               log_err("fio: failed parsing %s\n", input);
+               return 1;
        }
 
-       fprintf(stderr, "fio: failed parsing %s\n", opt);
-       free(tmp);
-       return 1;
+       add_to_dump_list(*o, dump_list, post);
+       return 0;
 }
 
 /*
  * Option match, levenshtein distance. Handy for not quite remembering what
  * the option name is.
  */
-static int string_distance(const char *s1, const char *s2)
+int string_distance(const char *s1, const char *s2)
 {
        unsigned int s1_len = strlen(s1);
        unsigned int s2_len = strlen(s2);
@@ -796,11 +1166,13 @@ static int string_distance(const char *s1, const char *s2)
                q[0] = p[0] + 1;
                for (j = 1; j <= s2_len; j++) {
                        unsigned int sub = p[j - 1];
+                       unsigned int pmin;
 
                        if (s1[i - 1] != s2[j - 1])
                                sub++;
 
-                       q[j] = min(p[j] + 1, min(q[j - 1] + 1, sub));
+                       pmin = min(q[j - 1] + 1, sub);
+                       q[j] = min(p[j] + 1, pmin);
                }
                r = p;
                p = q;
@@ -813,10 +1185,23 @@ static int string_distance(const char *s1, const char *s2)
        return i;
 }
 
-static struct fio_option *find_child(struct fio_option *options,
-                                    struct fio_option *o)
+/*
+ * Make a guess of whether the distance from 's1' is significant enough
+ * to warrant printing the guess. We set this to a 1/2 match.
+ */
+int string_distance_ok(const char *opt, int distance)
+{
+       size_t len;
+
+       len = strlen(opt);
+       len = (len + 1) / 2;
+       return distance <= len;
+}
+
+static const struct fio_option *find_child(const struct fio_option *options,
+                                          const struct fio_option *o)
 {
-       struct fio_option *__o;
+       const struct fio_option *__o;
 
        for (__o = options + 1; __o->name; __o++)
                if (__o->parent && !strcmp(__o->parent, o->name))
@@ -825,7 +1210,8 @@ static struct fio_option *find_child(struct fio_option *options,
        return NULL;
 }
 
-static void __print_option(struct fio_option *o, struct fio_option *org,
+static void __print_option(const struct fio_option *o,
+                          const struct fio_option *org,
                           int level)
 {
        char name[256], *p;
@@ -833,8 +1219,6 @@ static void __print_option(struct fio_option *o, struct fio_option *org,
 
        if (!o)
                return;
-       if (!org)
-               org = o;
 
        p = name;
        depth = level;
@@ -843,13 +1227,13 @@ static void __print_option(struct fio_option *o, struct fio_option *org,
 
        sprintf(p, "%s", o->name);
 
-       printf("%-24s: %s\n", name, o->help);
+       log_info("%-24s: %s\n", name, o->help);
 }
 
-static void print_option(struct fio_option *o)
+static void print_option(const struct fio_option *o)
 {
-       struct fio_option *parent;
-       struct fio_option *__o;
+       const struct fio_option *parent;
+       const struct fio_option *__o;
        unsigned int printed;
        unsigned int level;
 
@@ -870,9 +1254,9 @@ static void print_option(struct fio_option *o)
        } while (printed);
 }
 
-int show_cmd_help(struct fio_option *options, const char *name)
+int show_cmd_help(const struct fio_option *options, const char *name)
 {
-       struct fio_option *o, *closest;
+       const struct fio_option *o, *closest;
        unsigned int best_dist = -1U;
        int found = 0;
        int show_all = 0;
@@ -885,10 +1269,13 @@ int show_cmd_help(struct fio_option *options, const char *name)
        for (o = &options[0]; o->name; o++) {
                int match = 0;
 
-               if (o->type == FIO_OPT_DEPRECATED)
+               if (o->type == FIO_OPT_DEPRECATED ||
+                   o->type == FIO_OPT_SOFT_DEPRECATED)
                        continue;
                if (!exec_profile && o->prof_name)
                        continue;
+               if (exec_profile && !(o->prof_name && !strcmp(exec_profile, o->prof_name)))
+                       continue;
 
                if (name) {
                        if (!strcmp(name, o->name) ||
@@ -908,7 +1295,7 @@ int show_cmd_help(struct fio_option *options, const char *name)
                if (show_all || match) {
                        found = 1;
                        if (match)
-                               printf("%20s: %s\n", o->name, o->help);
+                               log_info("%20s: %s\n", o->name, o->help);
                        if (show_all) {
                                if (!o->parent)
                                        print_option(o);
@@ -919,24 +1306,24 @@ int show_cmd_help(struct fio_option *options, const char *name)
                if (!match)
                        continue;
 
-               show_option_help(o, stdout);
+               show_option_help(o, 0);
        }
 
        if (found)
                return 0;
 
-       printf("No such command: %s", name);
+       log_err("No such command: %s", name);
 
        /*
         * Only print an appropriately close option, one where the edit
         * distance isn't too big. Otherwise we get crazy matches.
         */
        if (closest && best_dist < 3) {
-               printf(" - showing closest match\n");
-               printf("%20s: %s\n", closest->name, closest->help);
-               show_option_help(closest, stdout);
+               log_info(" - showing closest match\n");
+               log_info("%20s: %s\n", closest->name, closest->help);
+               show_option_help(closest, 0);
        } else
-               printf("\n");
+               log_info("\n");
 
        return 1;
 }
@@ -944,9 +1331,9 @@ int show_cmd_help(struct fio_option *options, const char *name)
 /*
  * Handle parsing of default parameters.
  */
-void fill_default_options(void *data, struct fio_option *options)
+void fill_default_options(void *data, const struct fio_option *options)
 {
-       struct fio_option *o;
+       const struct fio_option *o;
 
        dprint(FD_PARSE, "filling default options\n");
 
@@ -955,30 +1342,39 @@ void fill_default_options(void *data, struct fio_option *options)
                        handle_option(o, o->def, data);
 }
 
-void option_init(struct fio_option *o)
+static void option_init(struct fio_option *o)
 {
-       if (o->type == FIO_OPT_DEPRECATED)
+       if (o->type == FIO_OPT_DEPRECATED || o->type == FIO_OPT_UNSUPPORTED ||
+           o->type == FIO_OPT_SOFT_DEPRECATED)
                return;
+       if (o->name && !o->lname)
+               log_err("Option %s: missing long option name\n", o->name);
        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"
+       if (o->type == FIO_OPT_INT) {
+               if (!o->maxval)
+                       o->maxval = UINT_MAX;
+       }
+       if (o->type == FIO_OPT_ULL) {
+               if (!o->maxval)
+                       o->maxval = ULLONG_MAX;
+       }
+       if (o->type == FIO_OPT_STR_SET && o->def && !o->no_warn_def) {
+               log_err("Option %s: string set option with"
                                " default will always be true\n", o->name);
        }
-       if (!o->cb && (!o->off1 && !o->roff1)) {
-               fprintf(stderr, "Option %s: neither cb nor offset given\n",
-                                                       o->name);
+       if (!o->cb && !o->off1)
+               log_err("Option %s: neither cb nor offset given\n", o->name);
+       if (!o->category) {
+               log_info("Option %s: no category defined. Setting to misc\n", o->name);
+               o->category = FIO_OPT_C_GENERAL;
+               o->group = FIO_OPT_G_INVALID;
        }
        if (o->type == FIO_OPT_STR || o->type == FIO_OPT_STR_STORE ||
            o->type == FIO_OPT_STR_MULTI)
                return;
-       if (o->cb && ((o->off1 || o->off2 || o->off3 || o->off4) ||
-                     (o->roff1 || o->roff2 || o->roff3 || o->roff4))) {
-               fprintf(stderr, "Option %s: both cb and offset given\n",
-                                                        o->name);
-       }
 }
 
 /*
@@ -991,6 +1387,45 @@ void options_init(struct fio_option *options)
 
        dprint(FD_PARSE, "init options\n");
 
-       for (o = &options[0]; o->name; o++)
+       for (o = &options[0]; o->name; o++) {
                option_init(o);
+               if (o->inverse)
+                       o->inv_opt = find_option(options, o->inverse);
+       }
+}
+
+void options_mem_dupe(const struct fio_option *options, void *data)
+{
+       const struct fio_option *o;
+       char **ptr;
+
+       dprint(FD_PARSE, "dup options\n");
+
+       for (o = &options[0]; o->name; o++) {
+               if (o->type != FIO_OPT_STR_STORE)
+                       continue;
+
+               ptr = td_var(data, o, o->off1);
+               if (*ptr)
+                       *ptr = strdup(*ptr);
+       }
+}
+
+void options_free(const struct fio_option *options, void *data)
+{
+       const struct fio_option *o;
+       char **ptr;
+
+       dprint(FD_PARSE, "free options\n");
+
+       for (o = &options[0]; o->name; o++) {
+               if (o->type != FIO_OPT_STR_STORE || !o->off1 || o->no_free)
+                       continue;
+
+               ptr = td_var(data, o, o->off1);
+               if (*ptr) {
+                       free(*ptr);
+                       *ptr = NULL;
+               }
+       }
 }