本文整理汇总了C++中bdecode_node::non_owning方法的典型用法代码示例。如果您正苦于以下问题：C++ bdecode_node::non_owning方法的具体用法？C++ bdecode_node::non_owning怎么用？C++ bdecode_node::non_owning使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类bdecode_node的用法示例。
在下文中一共展示了bdecode_node::non_owning方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: verify_message
bool verify_message(bdecode_node const& message, key_desc_t const desc[]
, bdecode_node ret[], int size, char* error, int error_size)
{
// get a non-root bdecode_node that still
// points to the root. message should not be copied
bdecode_node msg = message.non_owning();
// clear the return buffer
for (int i = 0; i < size; ++i)
ret[i].clear();
// when parsing child nodes, this is the stack
// of bdecode_nodes to return to
bdecode_node stack[5];
int stack_ptr = -1;
if (msg.type() != bdecode_node::dict_t)
{
snprintf(error, error_size, "not a dictionary");
return false;
}
++stack_ptr;
stack[stack_ptr] = msg;
for (int i = 0; i < size; ++i)
{
key_desc_t const& k = desc[i];
// fprintf(stderr, "looking for %s in %s\n", k.name, print_entry(*msg).c_str());
ret[i] = msg.dict_find(k.name);
// none_t means any type
if (ret[i] && ret[i].type() != k.type && k.type != bdecode_node::none_t)
ret[i].clear();
if (ret[i] == 0 && (k.flags & key_desc_t::optional) == 0)
{
// the key was not found, and it's not an optional key
snprintf(error, error_size, "missing '%s' key", k.name);
return false;
}
if (k.size > 0
&& ret[i]
&& k.type == bdecode_node::string_t)
{
bool invalid = false;
if (k.flags & key_desc_t::size_divisible)
invalid = (ret[i].string_length() % k.size) != 0;
else
invalid = ret[i].string_length() != k.size;
if (invalid)
{
// the string was not of the required size
ret[i].clear();
if ((k.flags & key_desc_t::optional) == 0)
{
snprintf(error, error_size, "invalid value for '%s'", k.name);
return false;
}
}
}
if (k.flags & key_desc_t::parse_children)
{
TORRENT_ASSERT(k.type == bdecode_node::dict_t);
if (ret[i])
{
++stack_ptr;
TORRENT_ASSERT(stack_ptr < int(sizeof(stack) / sizeof(stack[0])));
msg = ret[i];
stack[stack_ptr] = msg;
}
else
{
// skip all children
while (i < size && (desc[i].flags & key_desc_t::last_child) == 0) ++i;
// if this assert is hit, desc is incorrect
TORRENT_ASSERT(i < size);
}
}
else if (k.flags & key_desc_t::last_child)
{
TORRENT_ASSERT(stack_ptr > 0);
// this can happen if the specification passed
// in is unbalanced. i.e. contain more last_child
// nodes than parse_children
if (stack_ptr == 0) return false;
--stack_ptr;
msg = stack[stack_ptr];
}
}
return true;
}