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ircd::server: Fix dynamic chunked encoding cancellation buffer for pipeline.

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This commit is contained in:
Jason Volk 2020-01-24 13:39:25 -08:00
parent b7855f15bb
commit 55e9bc87e1
1 changed files with 12 additions and 2 deletions
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14
ircd/server.cc
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@ -2575,9 +2575,17 @@ noexcept
assert(tag.request == &request);
assert(!tag.cancellation);
// The cancellation is a straightforward facsimile except in the case of
// dynamic chunked encoding mode where we need to add additional scratch.
const size_t additional_scratch
{
tag.state.chunk_length != 0 && null(request.in.content)?
std::max(tag.state.head_rem, size_t(8_KiB)) : 0_KiB
};
const size_t cancellation_size
{
size(request.out) + size(request.in)
size(request.out) + size(request.in) + additional_scratch
};
// Disassociate the user's request and add our dummy request in its place.
@ -2609,9 +2617,11 @@ noexcept
tag.request->out.content = out_content;
ptr += size(out_content);
// The in_head buffer is a straightforward facsimile except in the case of
// dynamic chunked encoding mode where we need to add additional scratch.
const mutable_buffer in_head{ptr, size(request.in.head)};
tag.request->in.head = in_head;
ptr += size(in_head);
ptr += size(in_head) + additional_scratch;
const mutable_buffer in_content{ptr, size(request.in.content)};
// The nullity (btw that's a real word) of in.content has to be preserved