Ejemplos de find_prop_bt en C++ (Cpp)

Ejemplo n.º 1

Archivo: system_properties.cpp Proyecto: Caio99BR/DualBootPatcher

const prop_info *prop_area::find_property(prop_bt *const trie, const char *name,
        uint8_t namelen, const char *value, uint8_t valuelen,
        bool alloc_if_needed)
{
    if (!trie) return NULL;

    const char *remaining_name = name;
    prop_bt* current = trie;
    while (true) {
        const char *sep = strchr(remaining_name, '.');
        const bool want_subtree = (sep != NULL);
        const uint8_t substr_size = (want_subtree) ?
            sep - remaining_name : strlen(remaining_name);

        if (!substr_size) {
            return NULL;
        }

        prop_bt* root = NULL;
        uint_least32_t children_offset = atomic_load_explicit(&current->children, memory_order_relaxed);
        if (children_offset != 0) {
            root = to_prop_bt(&current->children);
        } else if (alloc_if_needed) {
            uint_least32_t new_offset;
            root = new_prop_bt(remaining_name, substr_size, &new_offset);
            if (root) {
                atomic_store_explicit(&current->children, new_offset, memory_order_release);
            }
        }

        if (!root) {
            return NULL;
        }

        current = find_prop_bt(root, remaining_name, substr_size, alloc_if_needed);
        if (!current) {
            return NULL;
        }

        if (!want_subtree)
            break;

        remaining_name = sep + 1;
    }

    uint_least32_t prop_offset = atomic_load_explicit(&current->prop, memory_order_relaxed);
    if (prop_offset != 0) {
        return to_prop_info(&current->prop);
    } else if (alloc_if_needed) {
        uint_least32_t new_offset;
        prop_info* new_info = new_prop_info(name, namelen, value, valuelen, &new_offset);
        if (new_info) {
            atomic_store_explicit(&current->prop, new_offset, memory_order_release);
        }

        return new_info;
    } else {
        return NULL;
    }
}

Ejemplo n.º 2

Archivo: system_properties.cpp Proyecto: Acidburn0zzz/platform_bionic

static const prop_info *find_property(prop_bt *const trie, const char *name,
        uint8_t namelen, const char *value, uint8_t valuelen,
        bool alloc_if_needed)
{
    if (!trie) return NULL;

    const char *remaining_name = name;
    prop_bt* current = trie;
    while (true) {
        const char *sep = strchr(remaining_name, '.');
        const bool want_subtree = (sep != NULL);
        const uint8_t substr_size = (want_subtree) ?
            sep - remaining_name : strlen(remaining_name);

        if (!substr_size) {
            return NULL;
        }

        prop_bt* root = NULL;
        if (current->children) {
            root = reinterpret_cast<prop_bt*>(to_prop_obj(current->children));
        } else if (alloc_if_needed) {
            uint32_t new_bt_offset;
            root = new_prop_bt(remaining_name, substr_size, &new_bt_offset);
            if (root) {
                current->children = new_bt_offset;
            }
        }

        if (!root) {
            return NULL;
        }

        current = find_prop_bt(root, remaining_name, substr_size, alloc_if_needed);
        if (!current) {
            return NULL;
        }

        if (!want_subtree)
            break;

        remaining_name = sep + 1;
    }

    if (current->prop) {
        return reinterpret_cast<prop_info*>(to_prop_obj(current->prop));
    } else if (alloc_if_needed) {
        uint32_t new_info_offset;
        prop_info* new_info = new_prop_info(name, namelen, value, valuelen, &new_info_offset);
        if (new_info) {
            current->prop = new_info_offset;
        }

        return new_info;
    } else {
        return NULL;
    }
}