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Move {show,set,clear}_setting() to {show,set,clear}_named_setting().

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Introduce new {show,set,clear}_setting() that take a struct setting *
rather than a const char *.

set_setting() handles calling clear_setting() when appropriate, so that
individual setting types don't have to check for empty strings.
This commit is contained in:
Michael Brown
2006-12-20 04:20:13 +00:00
parent fc7dcc201b
commit 35edecac34
4 changed files with 74 additions and 37 deletions
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52
src/include/gpxe/settings.h
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@@ -96,12 +96,54 @@ struct config_setting {
/** Declare a configuration setting */
#define __config_setting __table ( config_settings, 01 )
/* Function prototypes */
/**
* Show value of setting
*
* @v context Configuration context
* @v setting Configuration setting
* @v buf Buffer to contain value
* @v len Length of buffer
* @ret rc Return status code
*/
static inline int show_setting ( struct config_context *context,
struct config_setting *setting,
char *buf, size_t len ) {
return setting->type->show ( context, setting, buf, len );
}
extern int show_setting ( struct config_context *context, const char *name,
char *buf, size_t len );
extern int set_setting ( struct config_context *context, const char *name,
extern int set_setting ( struct config_context *context,
struct config_setting *setting,
const char *value );
extern int clear_setting ( struct config_context *context, const char *name );
/**
* Clear setting
*
* @v context Configuration context
* @v setting Configuration setting
* @ret rc Return status code
*/
static inline int clear_setting ( struct config_context *context,
struct config_setting *setting ) {
delete_dhcp_option ( context->options, setting->tag );
return 0;
}
/* Function prototypes */
extern int show_named_setting ( struct config_context *context,
const char *name, char *buf, size_t len );
extern int set_named_setting ( struct config_context *context,
const char *name, const char *value );
/**
* Clear named setting
*
* @v context Configuration context
* @v name Configuration setting name
* @ret rc Return status code
*/
static inline int clear_named_setting ( struct config_context *context,
const char *name ) {
return set_named_setting ( context, name, NULL );
}
#endif /* _GPXE_SETTINGS_H */