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[common] option: add support for float option types

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This commit is contained in:
Geoffrey McRae 2021-08-10 01:09:40 +10:00
parent 37faccd014
commit 88eada3494
2 changed files with 37 additions and 0 deletions
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3
common/include/common/option.h
View file

@ -30,6 +30,7 @@ enum OptionType
OPTION_TYPE_INT,
OPTION_TYPE_STRING,
OPTION_TYPE_BOOL,
OPTION_TYPE_FLOAT,
OPTION_TYPE_CUSTOM
};
@ -55,6 +56,7 @@ struct Option
int x_int;
char * x_string;
bool x_bool;
float x_float;
void * x_custom;
}
value;
@ -78,6 +80,7 @@ struct Option * option_get (const char * module, const char * name);
int option_get_int (const char * module, const char * name);
const char * option_get_string(const char * module, const char * name);
bool option_get_bool (const char * module, const char * name);
bool option_get_float (const char * module, const char * name);
// called by the main application to parse the command line arguments
bool option_parse(int argc, char * argv[]);

34
common/src/option.c
View file

@ -70,6 +70,12 @@ static bool bool_parser(struct Option * opt, const char * str)
return true;
}
static bool float_parser(struct Option * opt, const char * str)
{
opt->value.x_float = atof(str);
return true;
}
static bool string_parser(struct Option * opt, const char * str)
{
free(opt->value.x_string);
@ -90,6 +96,14 @@ static char * bool_toString(struct Option * opt)
return strdup(opt->value.x_bool ? "yes" : "no");
}
static char * float_toString(struct Option * opt)
{
int len = snprintf(NULL, 0, "%f", opt->value.x_float);
char * ret = malloc(len + 1);
sprintf(ret, "%f", opt->value.x_float);
return ret;
}
static char * string_toString(struct Option * opt)
{
if (!opt->value.x_string)
@ -131,6 +145,10 @@ bool option_register(struct Option options[])
o->parser = bool_parser;
break;
case OPTION_TYPE_FLOAT:
o->parser = float_parser;
break;
default:
DEBUG_ERROR("BUG: Non int/string/bool option types must have a parser");
continue;
@ -153,6 +171,10 @@ bool option_register(struct Option options[])
o->toString = bool_toString;
break;
case OPTION_TYPE_FLOAT:
o->toString = float_toString;
break;
default:
DEBUG_ERROR("BUG: Non int/string/bool option types must implement toString");
continue;
@ -770,3 +792,15 @@ bool option_get_bool(const char * module, const char * name)
assert(o->type == OPTION_TYPE_BOOL);
return o->value.x_bool;
}
bool option_get_float(const char * module, const char * name)
{
struct Option * o = option_get(module, name);
if (!o)
{
DEBUG_ERROR("BUG: Failed to get the value for option %s:%s", module, name);
return false;
}
assert(o->type == OPTION_TYPE_FLOAT);
return o->value.x_float;
}