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Code Issues Releases Wiki Activity

ircd::json::stack: Add raw rewind method to interface.

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This commit is contained in:
Jason Volk 2019-01-26 17:01:07 -08:00
parent 7d96e90347
commit d2380ecd36
2 changed files with 13 additions and 1 deletions
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1
include/ircd/json/stack.h
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@ -71,6 +71,7 @@ struct ircd::json::stack
const_buffer completed() const;
bool flush(const bool &force = false) noexcept;
size_t rewind(const size_t &bytes);
void clear();
stack(const mutable_buffer &,

13
ircd/json.cc
View file

@ -546,10 +546,21 @@ catch(...)
void
ircd::json::stack::clear()
{
buf.rewind(buf.consumed());
rewind(buf.consumed());
this->eptr = std::exception_ptr{};
}
size_t
ircd::json::stack::rewind(const size_t &bytes)
{
const size_t before(buf.consumed());
const size_t &amount(std::min(bytes, before));
const size_t after(size(buf.rewind(amount)));
assert(before >= after);
assert(before - after == amount);
return amount;
}
ircd::const_buffer
ircd::json::stack::completed()
const