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#ifndef MPLAYER_M_CONFIG_H
#define MPLAYER_M_CONFIG_H
/// \defgroup Config Config manager
///
/// m_config provides an API to manipulate the config variables in MPlayer.
/// It makes use of the \ref Options API to provide a context stack that
/// allows saving and later restoring the state of all variables.
///@{
/// \file
typedef struct m_config_option m_config_option_t;
typedef struct m_config_save_slot m_config_save_slot_t;
/// \ingroup ConfigProfiles
typedef struct m_profile m_profile_t;
struct m_option;
struct m_option_type;
/// Config option save slot
struct m_config_save_slot {
/// Previous level slot.
m_config_save_slot_t* prev;
/// Level at which the save was made.
int lvl;
// We have to store other datatypes in this as well,
// so make sure we get properly aligned addresses.
unsigned char data[0] __attribute__ ((aligned (8)));
};
/// Config option
struct m_config_option {
m_config_option_t* next;
/// Full name (ie option:subopt).
char* name;
/// Option description.
const struct m_option* opt;
/// Save slot stack.
m_config_save_slot_t* slots;
/// See \ref ConfigOptionFlags.
unsigned int flags;
};
/// \defgroup ConfigProfiles Config profiles
/// \ingroup Config
///
/// Profiles allow to predefine some sets of options that can then
/// be applied later on with the internal -profile option.
///
///@{
/// Config profile
struct m_profile {
m_profile_t* next;
char* name;
char* desc;
int num_opts;
/// Option/value pair array.
char** opts;
};
///@}
/// Config object
/** \ingroup Config */
typedef struct m_config {
/// Registered options.
/** This contains all options and suboptions.
*/
m_config_option_t* opts;
/// Current stack level.
int lvl;
/// \ref OptionParserModes
int mode;
/// List of defined profiles.
m_profile_t* profiles;
/// Depth when recursively including profiles.
int profile_depth;
/// Options defined by the config itself.
struct m_option* self_opts;
} m_config_t;
/// \defgroup ConfigOptionFlags Config option flags
/// \ingroup Config
///@{
/// Set if an option has been set at the current level.
#define M_CFG_OPT_SET (1<<0)
/// Set if another option already uses the same variable.
#define M_CFG_OPT_ALIAS (1<<1)
///@}
/// Create a new config object.
/** \ingroup Config
*/
m_config_t*
m_config_new(void);
/// Free a config object.
void
m_config_free(m_config_t* config);
/// Push a new context.
/** \param config The config object.
*/
void
m_config_push(m_config_t* config);
/// Pop the current context restoring the previous context state.
/** \param config The config object.
*/
void
m_config_pop(m_config_t* config);
/// Register some options to be used.
/** \param config The config object.
* \param args An array of \ref m_option struct.
* \return 1 on success, 0 on failure.
*/
int
m_config_register_options(m_config_t *config, const struct m_option *args);
/// Set an option.
/** \param config The config object.
* \param arg The option's name.
* \param param The value of the option, can be NULL.
* \return See \ref OptionParserReturn.
*/
int
m_config_set_option(m_config_t *config, char* arg, char* param);
/// Check if an option setting is valid.
/** \param config The config object.
* \param arg The option's name.
* \param param The value of the option, can be NULL.
* \return See \ref OptionParserReturn.
*/
int
m_config_check_option(m_config_t *config, char* arg, char* param);
/// Get the option matching the given name.
/** \param config The config object.
* \param arg The option's name.
*/
const struct m_option*
m_config_get_option(m_config_t *config, char* arg);
/// Print a list of all registered options.
/** \param config The config object.
*/
void
m_config_print_option_list(m_config_t *config);
/// \addtogroup ConfigProfiles
///@{
/// Find the profile with the given name.
/** \param config The config object.
* \param arg The profile's name.
* \return The profile object or NULL.
*/
m_profile_t*
m_config_get_profile(m_config_t* config, char* name);
/// Get the profile with the given name, creating it if necessary.
/** \param config The config object.
* \param arg The profile's name.
* \return The profile object.
*/
m_profile_t*
m_config_add_profile(m_config_t* config, char* name);
/// Set the description of a profile.
/** Used by the config file parser when defining a profile.
*
* \param p The profile object.
* \param arg The profile's name.
*/
void
m_profile_set_desc(m_profile_t* p, char* desc);
/// Add an option to a profile.
/** Used by the config file parser when defining a profile.
*
* \param config The config object.
* \param p The profile object.
* \param name The option's name.
* \param val The option's value.
*/
int
m_config_set_profile_option(m_config_t* config, m_profile_t* p,
char* name, char* val);
/// Enables profile usage
/** Used by the config file parser when loading a profile.
*
* \param config The config object.
* \param p The profile object.
*/
void
m_config_set_profile(m_config_t* config, m_profile_t* p);
///@}
///@}
#endif /* MPLAYER_M_CONFIG_H */
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