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[Settings] Implement simple_settings backed with extensible DHCP options

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This commit is contained in:
Michael Brown
2008-03-22 00:24:50 +00:00
parent a462c96ffc
commit e5cea13e51
4 changed files with 72 additions and 26 deletions
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56
src/core/settings.c
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@@ -79,23 +79,36 @@ static inline char * setting_tag_name ( unsigned int tag ) {
******************************************************************************
*/
// Dummy routine just for testing
/**
* Store value of simple setting
*
* @v options DHCP option block
* @v tag Setting tag number
* @v data Setting data, or NULL to clear setting
* @v len Length of setting data
* @ret rc Return status code
*/
int simple_settings_store ( struct settings *settings, unsigned int tag,
const void *data, size_t len ) {
DBGC ( settings, "Settings %p: store %s to:\n",
settings, setting_tag_name ( tag ) );
DBGC_HD ( settings, data, len );
return 0;
struct simple_settings *simple =
container_of ( settings, struct simple_settings, settings );
return dhcpopt_extensible_store ( &simple->dhcpopts, tag, data, len );
}
// Dummy routine just for testing
/**
* Fetch value of simple setting
*
* @v options DHCP option block
* @v tag Setting tag number
* @v data Buffer to fill with setting data
* @v len Length of buffer
* @ret len Length of setting data, or negative error
*/
int simple_settings_fetch ( struct settings *settings, unsigned int tag,
void *data, size_t len ) {
( void ) settings;
( void ) tag;
( void ) data;
( void ) len;
return -ENOENT;
struct simple_settings *simple =
container_of ( settings, struct simple_settings, settings );
return dhcpopt_fetch ( &simple->dhcpopts, tag, data, len );
}
/** Simple settings operations */
@@ -104,15 +117,22 @@ struct settings_operations simple_settings_operations = {
.fetch = simple_settings_fetch,
};
/** Root settings block */
struct settings settings_root = {
.refcnt = NULL,
.name = "",
.siblings = LIST_HEAD_INIT ( settings_root.siblings ),
.children = LIST_HEAD_INIT ( settings_root.children ),
.op = &simple_settings_operations,
/** Root simple settings block */
struct simple_settings simple_settings_root = {
.settings = {
.refcnt = NULL,
.name = "",
.siblings =
LIST_HEAD_INIT ( simple_settings_root.settings.siblings ),
.children =
LIST_HEAD_INIT ( simple_settings_root.settings.children ),
.op = &simple_settings_operations,
},
};
/** Root settings block */
#define settings_root simple_settings_root.settings
/**
* Apply all settings
*