mirror of
https://github.com/mpv-player/mpv
synced 2024-12-27 17:42:17 +00:00
66 lines
2.5 KiB
C
66 lines
2.5 KiB
C
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#include "common/common.h"
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#include "node.h"
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// Init a node with the given format. If parent is not NULL, it is set as
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// parent allocation according to m_option_type_node rules (which means
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// the mpv_node_list allocs are used for chaining the TA allocations).
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// format == MPV_FORMAT_NONE will simply initialize it with all-0.
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void node_init(struct mpv_node *dst, int format, struct mpv_node *parent)
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{
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// Other formats need to be initialized manually.
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assert(format == MPV_FORMAT_NODE_MAP || format == MPV_FORMAT_NODE_ARRAY ||
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format == MPV_FORMAT_FLAG || format == MPV_FORMAT_INT64 ||
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format == MPV_FORMAT_DOUBLE || format == MPV_FORMAT_NONE);
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void *ta_parent = NULL;
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if (parent) {
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assert(parent->format == MPV_FORMAT_NODE_MAP ||
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parent->format == MPV_FORMAT_NODE_ARRAY);
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ta_parent = parent->u.list;
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}
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*dst = (struct mpv_node){ .format = format };
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if (format == MPV_FORMAT_NODE_MAP || format == MPV_FORMAT_NODE_ARRAY)
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dst->u.list = talloc_zero(ta_parent, struct mpv_node_list);
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}
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// Add an entry to a MPV_FORMAT_NODE_ARRAY.
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// m_option_type_node memory management rules apply.
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struct mpv_node *node_array_add(struct mpv_node *dst, int format)
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{
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struct mpv_node_list *list = dst->u.list;
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assert(dst->format == MPV_FORMAT_NODE_ARRAY && dst->u.list);
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MP_TARRAY_GROW(list, list->values, list->num);
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node_init(&list->values[list->num], format, dst);
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return &list->values[list->num++];
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}
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// Add an entry to a MPV_FORMAT_NODE_MAP. Keep in mind that this does
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// not check for already existing entries under the same key.
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// m_option_type_node memory management rules apply.
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struct mpv_node *node_map_add(struct mpv_node *dst, const char *key, int format)
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{
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assert(key);
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struct mpv_node_list *list = dst->u.list;
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assert(dst->format == MPV_FORMAT_NODE_MAP && dst->u.list);
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MP_TARRAY_GROW(list, list->values, list->num);
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MP_TARRAY_GROW(list, list->keys, list->num);
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list->keys[list->num] = talloc_strdup(list, key);
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node_init(&list->values[list->num], format, dst);
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return &list->values[list->num++];
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}
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// Add a string entry to a MPV_FORMAT_NODE_MAP. Keep in mind that this does
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// not check for already existing entries under the same key.
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// m_option_type_node memory management rules apply.
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void node_map_add_string(struct mpv_node *dst, const char *key, const char *val)
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{
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assert(val);
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struct mpv_node *entry = node_map_add(dst, key, MPV_FORMAT_NONE);
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entry->format = MPV_FORMAT_STRING;
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entry->u.string = talloc_strdup(dst->u.list, val);
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}
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