/*
* __config_getraw --
* Given a config parser, find the final value for a given key.
*/
static int
__config_getraw(
WT_CONFIG *cparser, WT_CONFIG_ITEM *key, WT_CONFIG_ITEM *value, bool top)
{
WT_CONFIG sparser;
WT_CONFIG_ITEM k, v, subk;
WT_DECL_RET;
bool found;
found = false;
while ((ret = __config_next(cparser, &k, &v)) == 0) {
if (k.type != WT_CONFIG_ITEM_STRING &&
k.type != WT_CONFIG_ITEM_ID)
continue;
if (k.len == key->len && strncmp(key->str, k.str, k.len) == 0) {
*value = v;
found = true;
} else if (k.len < key->len && key->str[k.len] == '.' &&
strncmp(key->str, k.str, k.len) == 0) {
subk.str = key->str + k.len + 1;
subk.len = (key->len - k.len) - 1;
WT_RET(__wt_config_initn(
cparser->session, &sparser, v.str, v.len));
if ((ret = __config_getraw(
&sparser, &subk, value, false)) == 0)
found = true;
WT_RET_NOTFOUND_OK(ret);
}
}
WT_RET_NOTFOUND_OK(ret);
if (!found)
return (WT_NOTFOUND);
return (top ? __config_process_value(cparser, value) : 0);
}
/*
* __wt_config_get --
* Given a NULL-terminated list of configuration strings, find
* the final value for a given key.
*/
int
__wt_config_get(WT_SESSION_IMPL *session,
const char **cfg_arg, WT_CONFIG_ITEM *key, WT_CONFIG_ITEM *value)
{
WT_CONFIG cparser;
WT_DECL_RET;
const char **cfg;
if (cfg_arg[0] == NULL)
return (WT_NOTFOUND);
/*
* Search the strings in reverse order, that way the first hit wins
* and we don't search the base set until there's no other choice.
*/
for (cfg = cfg_arg; *cfg != NULL; ++cfg)
;
do {
--cfg;
__wt_config_init(session, &cparser, *cfg);
if ((ret = __config_getraw(&cparser, key, value, true)) == 0)
return (0);
WT_RET_NOTFOUND_OK(ret);
} while (cfg != cfg_arg);
return (WT_NOTFOUND);
}
/*
* __wt_config_subgetraw --
* Get the value for a given key from a config string in a WT_CONFIG_ITEM.
* This is useful for dealing with nested structs in config strings.
*/
int
__wt_config_subgetraw(WT_SESSION_IMPL *session,
WT_CONFIG_ITEM *cfg, WT_CONFIG_ITEM *key, WT_CONFIG_ITEM *value)
{
WT_CONFIG cparser;
WT_RET(__wt_config_initn(session, &cparser, cfg->str, cfg->len));
return (__config_getraw(&cparser, key, value, true));
}
/*
* __wt_config_getone --
* Get the value for a given key from a single config string.
*/
int
__wt_config_getone(WT_SESSION_IMPL *session,
const char *config, WT_CONFIG_ITEM *key, WT_CONFIG_ITEM *value)
{
WT_CONFIG cparser;
WT_RET(__wt_config_init(session, &cparser, config));
return (__config_getraw(&cparser, key, value, true));
}
/*
* __wt_config_getones --
* Get the value for a given string key from a single config string.
*/
int
__wt_config_getones(WT_SESSION_IMPL *session,
const char *config, const char *key, WT_CONFIG_ITEM *value)
{
WT_CONFIG cparser;
WT_CONFIG_ITEM key_item = { key, strlen(key), 0, ITEM_STRING };
WT_RET(__wt_config_init(session, &cparser, config));
return (__config_getraw(&cparser, &key_item, value, 1));
}
/*
* __wt_config_get --
* Given a NULL-terminated list of configuration strings, find
* the final value for a given key.
*/
int
__wt_config_get(WT_SESSION_IMPL *session,
const char **cfg, WT_CONFIG_ITEM *key, WT_CONFIG_ITEM *value)
{
WT_CONFIG cparser;
WT_DECL_RET;
int found;
for (found = 0; *cfg != NULL; cfg++) {
WT_RET(__wt_config_init(session, &cparser, *cfg));
if ((ret = __config_getraw(&cparser, key, value, true)) == 0)
found = 1;
else if (ret != WT_NOTFOUND)
return (ret);
}
return (found ? 0 : WT_NOTFOUND);
}
