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m_config: don't require dragging along parent in initialization 

Instead, track the opstruct explicitly. It turns out we don't need the
parent at all. Also, add something rudimentary to track the default
values.
This commit is contained in:
wm4 2013-10-24 20:18:09 +02:00
parent b707589e7e
commit 7204dee3c7
1 changed files with 19 additions and 14 deletions
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33
mpvcore/m_config.c
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@ -172,8 +172,9 @@ static void substruct_write_ptr(void *ptr, void *val)
}
static void add_options(struct m_config *config,
struct m_config_option *parent,
const char *parent_name,
void *optstruct,
const void *optstruct_def,
const struct m_option *defs);
static void config_destroy(void *p)
@ -202,7 +203,7 @@ struct m_config *m_config_new(void *talloc_parent, size_t size,
if (defaults)
memcpy(config->optstruct, defaults, size);
if (options)
add_options(config, NULL, "", options);
add_options(config, "", config->optstruct, defaults, options);
}
if (suboptinit) {
bstr s = bstr0(suboptinit);
@ -348,22 +349,25 @@ static void add_negation_option(struct m_config *config,
}
static void m_config_add_option(struct m_config *config,
struct m_config_option *parent,
const char *parent_name,
void *optstruct,
const void *optstruct_def,
const struct m_option *arg);
static void add_options(struct m_config *config,
struct m_config_option *parent,
const char *parent_name,
void *optstruct,
const void *optstruct_def,
const struct m_option *defs)
{
for (int i = 0; defs && defs[i].name; i++)
m_config_add_option(config, parent, parent_name, &defs[i]);
m_config_add_option(config, parent_name, optstruct, optstruct_def, &defs[i]);
}
static void m_config_add_option(struct m_config *config,
struct m_config_option *parent,
const char *parent_name,
void *optstruct,
const void *optstruct_def,
const struct m_option *arg)
{
assert(config != NULL);
@ -380,9 +384,6 @@ static void m_config_add_option(struct m_config *config,
.name = (char *)arg->name,
};
void *optstruct = config->optstruct;
if (parent && (parent->opt->type->flags & M_OPT_TYPE_USE_SUBSTRUCT))
optstruct = substruct_read_ptr(parent->data);
co.data = arg->is_new_option ? (char *)optstruct + arg->offset : arg->p;
// Fill in the full name
@ -396,14 +397,18 @@ static void m_config_add_option(struct m_config *config,
if (arg->type->flags & M_OPT_TYPE_USE_SUBSTRUCT) {
const struct m_sub_options *subopts = arg->priv;
if (!substruct_read_ptr(co.data)) {
void *subdata = m_config_alloc_struct(config, subopts);
substruct_write_ptr(co.data, subdata);
void *new_optstruct = substruct_read_ptr(co.data);
if (!new_optstruct) {
new_optstruct = m_config_alloc_struct(config, subopts);
substruct_write_ptr(co.data, new_optstruct);
}
add_options(config, &co, new_parent_name, subopts->opts);
const void *new_optstruct_def = subopts->defaults;
add_options(config, new_parent_name, new_optstruct,
new_optstruct_def, subopts->opts);
} else {
const struct m_option *sub = arg->p;
add_options(config, &co, new_parent_name, sub);
add_options(config, new_parent_name, optstruct, optstruct_def, sub);
}
} else {
// Initialize options