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https://github.com/mpv-player/mpv
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m_config: add some convenience functions
To be used by the following commits.
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@ -1143,6 +1143,27 @@ void m_config_notify_change_co(struct m_config *config,
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mp_msg_update_msglevels(config->global);
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}
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void *mp_get_config_group(void *ta_parent, struct mpv_global *global,
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const struct m_sub_options *group)
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{
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assert(ta_parent); // without you'd necessarily leak memory
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struct m_config_cache *cache = m_config_cache_alloc(ta_parent, global, group);
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return cache->opts;
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}
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void mp_read_option_raw(struct mpv_global *global, const char *name,
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const struct m_option_type *type, void *dst)
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{
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struct m_config_shadow *shadow = global->config;
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struct m_config_option *co = m_config_get_co(shadow->root, bstr0(name));
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assert(co);
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assert(co->shadow_offset >= 0);
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assert(co->opt->type == type);
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memset(dst, 0, co->opt->type->size);
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m_option_copy(co->opt, dst, shadow->data + co->shadow_offset);
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}
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struct m_config *mp_get_root_config(struct mpv_global *global)
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{
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return global->config->root;
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@ -304,6 +304,20 @@ struct m_config_cache *m_config_cache_alloc(void *ta_parent,
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// data itself will (e.g. string options might be reallocated).
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bool m_config_cache_update(struct m_config_cache *cache);
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// Like m_config_cache_alloc(), but return the struct (m_config_cache->opts)
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// directly, with no way to update the config.
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// Warning: does currently not set the child as its own talloc root, which
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// means the only way to free the struct is by freeing ta_parent.
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void *mp_get_config_group(void *ta_parent, struct mpv_global *global,
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const struct m_sub_options *group);
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// Read a single global option in a thread-safe way. For multiple options,
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// use m_config_cache. The option must exist and match the provided type (the
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// type is used as a sanity check only). Performs semi-expensive lookup.
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void mp_read_option_raw(struct mpv_global *global, const char *name,
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const struct m_option_type *type, void *dst);
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struct m_config *mp_get_root_config(struct mpv_global *global);
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#endif /* MPLAYER_M_CONFIG_H */
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