X-Git-Url: https://git.kernel.dk/?p=fio.git;a=blobdiff_plain;f=parse.c;h=8ed4619e6e08f765b783e3c59f3bf7b5632faf2d;hp=282baa4c154554b7f537e25f0d723a70dc4df6ea;hb=33477b4b5f61c2ba57bc3346b8968d9be8b56fc4;hpb=8a1db9a16e1075498e5d6166fa46b419cecd8af8

diff --git a/parse.c b/parse.c
index 282baa4c..8ed4619e 100644
--- a/parse.c
+++ b/parse.c
@@ -15,8 +15,10 @@
 #include "parse.h"
 #include "debug.h"
 #include "options.h"
+#include "optgroup.h"
 #include "minmax.h"
 #include "lib/ieee754.h"
+#include "lib/pow2.h"
 
 #ifdef CONFIG_ARITHMETIC
 #include "y.tab.h"
@@ -51,7 +53,7 @@ static void posval_sort(struct fio_option *o, struct value_pair *vpmap)
 }
 
 static void show_option_range(struct fio_option *o,
-				int (*logger)(const char *format, ...))
+			      size_t (*logger)(const char *format, ...))
 {
 	if (o->type == FIO_OPT_FLOAT_LIST) {
 		if (o->minfp == DBL_MIN && o->maxfp == DBL_MAX)
@@ -107,8 +109,9 @@ static void show_option_help(struct fio_option *o, int is_err)
 		"list of floating point values separated by ':' (opt=5.9:7.8)",
 		"no argument (opt)",
 		"deprecated",
+		"unsupported",
 	};
-	int (*logger)(const char *format, ...);
+	size_t (*logger)(const char *format, ...);
 
 	if (is_err)
 		logger = log_err;
@@ -269,58 +272,13 @@ static unsigned long long get_mult_bytes(const char *str, int len, void *data,
 }
 
 extern int evaluate_arithmetic_expression(const char *buffer, long long *ival,
-					  double *dval, double implied_units);
-
-#ifdef CONFIG_ARITHMETIC
-/*
- * These two verification functions are just to gain confidence that
- * the arithmetic processing code is always getting the same answer as the
- * original number parsing code.  Once sufficiently sure that the arithmetic
- * code is always getting the right answers, these can be removed.
- */
-static void verify_exp_parser_float(const char *str, double implied_units)
-{
-	long long ival;
-	double dval, tmpval;
-
-	if (sscanf(str, "%lf", &tmpval) != 1)
-		return;
-
-	if (evaluate_arithmetic_expression(str, &ival, &dval, implied_units) != 0) {
-		log_info("Arithmetic failed on '%s'\n", str);
-		return;
-	}
-	if (dval != tmpval) {
-		log_info("Arithmetic failed on: '%s' got %lf, expected %lf\n",
-				str, dval, tmpval);
-	}
-}
-
-static void verify_exp_parser_decimal(const char *str, long long val, int kilo, int is_seconds)
-{
-	int rc;
-	long long ival;
-	double dval;
-	double implied_units = 1.0;
-
-	if (is_seconds)
-		implied_units = 1000000.0;
-
-	rc = evaluate_arithmetic_expression(str, &ival, &dval, implied_units);
-	if (!rc) {
-		if (ival != val)
-			log_info("Arithmetic failed on '%s', expected %lld, got %lld\n",
-				str, val, ival);
-	} else {
-		log_info("Arithmetic failed on '%s'\n", str);
-	}
-}
-#endif
+					  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 str_to_float(const char *str, double *val, int is_time)
 {
 #ifdef CONFIG_ARITHMETIC
 	int rc;
@@ -328,13 +286,11 @@ int str_to_float(const char *str, double *val)
 	double dval;
 
 	if (str[0] == '(') {
-		rc = evaluate_arithmetic_expression(str, &ival, &dval, 1.0);
+		rc = evaluate_arithmetic_expression(str, &ival, &dval, 1.0, is_time);
 		if (!rc) {
 			*val = dval;
 			return 1;
 		}
-	} else {
-		verify_exp_parser_float(str, 1.0);
 	}
 #endif
 	return 1 == sscanf(str, "%lf", val);
@@ -344,7 +300,7 @@ int str_to_float(const char *str, double *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 is_seconds)
+		   int is_seconds, int is_time)
 {
 	int len, base;
 	int rc = 1;
@@ -362,7 +318,7 @@ int str_to_decimal(const char *str, long long *val, int kilo, void *data,
 	if (is_seconds)
 		implied_units = 1000000.0;
 	if (str[0] == '(')
-		rc = evaluate_arithmetic_expression(str, &ival, &dval, implied_units);
+		rc = evaluate_arithmetic_expression(str, &ival, &dval, implied_units, is_time);
 	if (str[0] == '(' && !rc) {
 		if (!kilo && is_seconds)
 			*val = ival / 1000000LL;
@@ -393,20 +349,18 @@ int str_to_decimal(const char *str, long long *val, int kilo, void *data,
 			*val *= mult;
 	} else
 		*val *= get_mult_time(str, len, is_seconds);
-#ifdef CONFIG_ARITHMETIC
-	verify_exp_parser_decimal(str, *val, kilo, is_seconds);
-#endif
+
 	return 0;
 }
 
 int check_str_bytes(const char *p, long long *val, void *data)
 {
-	return str_to_decimal(p, val, 1, data, 0);
+	return str_to_decimal(p, val, 1, data, 0, 0);
 }
 
 int check_str_time(const char *p, long long *val, int is_seconds)
 {
-	return str_to_decimal(p, val, 0, NULL, is_seconds);
+	return str_to_decimal(p, val, 0, NULL, is_seconds, 1);
 }
 
 void strip_blank_front(char **p)
@@ -448,7 +402,7 @@ static int check_range_bytes(const char *str, long *val, void *data)
 {
 	long long __val;
 
-	if (!str_to_decimal(str, &__val, 1, data, 0)) {
+	if (!str_to_decimal(str, &__val, 1, data, 0, 0)) {
 		*val = __val;
 		return 0;
 	}
@@ -531,6 +485,8 @@ 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 (!ptr)
+				break;
 			if (!strncmp(vp->ival, ptr, str_match_len(vp, ptr))) {
 				ret = 0;
 				if (o->off1)
@@ -552,6 +508,10 @@ static int __handle_option(struct fio_option *o, const char *ptr, void *data,
 		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)
@@ -566,6 +526,10 @@ static int __handle_option(struct fio_option *o, const char *ptr, void *data,
 
 		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) {
 			log_err("max value out of range: %llu"
@@ -655,7 +619,7 @@ static int __handle_option(struct fio_option *o, const char *ptr, void *data,
 					o->maxlen);
 			return 1;
 		}
-		if (!str_to_float(ptr, &uf)) {
+		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;
 		}
@@ -751,6 +715,7 @@ static int __handle_option(struct fio_option *o, const char *ptr, void *data,
 		char tmp[128];
 		char *p1, *p2;
 
+		tmp[sizeof(tmp) - 1] = '\0';
 		strncpy(tmp, ptr, sizeof(tmp) - 1);
 
 		/* Handle bsrange with separate read,write values: */
@@ -942,6 +907,25 @@ static int handle_option(struct fio_option *o, const char *__ptr, void *data)
 	return ret;
 }
 
+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;
+}
+
+
 static struct fio_option *get_option(char *opt,
 				     struct fio_option *options, char **post)
 {
@@ -997,8 +981,27 @@ void sort_options(char **opts, struct fio_option *options, int num_opts)
 	__fio_options = NULL;
 }
 
+static void add_to_dump_list(struct fio_option *o, struct flist_head *dump_list,
+			     const char *post)
+{
+	struct print_option *p;
+
+	if (!dump_list)
+		return;
+
+	p = malloc(sizeof(*p));
+	p->name = strdup(o->name);
+	if (post)
+		p->value = strdup(post);
+	else
+		p->value = NULL;
+
+	flist_add_tail(&p->list, dump_list);
+}
+
 int parse_cmd_option(const char *opt, const char *val,
-		     struct fio_option *options, void *data)
+		     struct fio_option *options, void *data,
+		     struct flist_head *dump_list)
 {
 	struct fio_option *o;
 
@@ -1008,16 +1011,18 @@ int parse_cmd_option(const char *opt, const char *val,
 		return 1;
 	}
 
-	if (!handle_option(o, val, data))
-		return 0;
+	if (handle_option(o, val, data)) {
+		log_err("fio: failed parsing %s=%s\n", opt, val);
+		return 1;
+	}
 
-	log_err("fio: failed parsing %s=%s\n", opt, val);
-	return 1;
+	add_to_dump_list(o, dump_list, val);
+	return 0;
 }
 
 int parse_option(char *opt, const char *input,
 		 struct fio_option *options, struct fio_option **o, void *data,
-		 int dump_cmdline)
+		 struct flist_head *dump_list)
 {
 	char *post;
 
@@ -1043,19 +1048,7 @@ int parse_option(char *opt, const char *input,
 		return 1;
 	}
 
-	if (dump_cmdline) {
-		const char *delim;
-
-		if (!strcmp("description", (*o)->name))
-			delim = "\"";
-		else
-			delim = "";
-
-		log_info("--%s%s", (*o)->name, post ? "" : " ");
-		if (post)
-			log_info("=%s%s%s ", delim, post, delim);
-	}
-
+	add_to_dump_list(*o, dump_list, post);
 	return 0;
 }
 
@@ -1063,7 +1056,7 @@ int parse_option(char *opt, const char *input,
  * 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);
@@ -1100,6 +1093,19 @@ static int string_distance(const char *s1, const char *s2)
 	return i;
 }
 
+/*
+ * 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 struct fio_option *find_child(struct fio_option *options,
 				     struct fio_option *o)
 {
@@ -1244,10 +1250,12 @@ 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)
 		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;
@@ -1274,8 +1282,6 @@ void option_init(struct fio_option *o)
 	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))
-		log_err("Option %s: both cb and offset given\n", o->name);
 }
 
 /*