2016-05-12 23:43:17 +03:00
|
|
|
/*
|
2019-06-20 02:58:25 +03:00
|
|
|
* Copyright (c) Facebook, Inc. and its affiliates.
|
2016-05-12 23:43:17 +03:00
|
|
|
*
|
2019-06-20 02:58:25 +03:00
|
|
|
* This software may be used and distributed according to the terms of the
|
|
|
|
* GNU General Public License version 2.
|
2016-05-12 23:43:17 +03:00
|
|
|
*/
|
2018-03-20 03:01:15 +03:00
|
|
|
#include "eden/fs/fuse/BufVec.h"
|
2016-05-12 23:43:17 +03:00
|
|
|
|
|
|
|
namespace facebook {
|
|
|
|
namespace eden {
|
|
|
|
|
|
|
|
BufVec::Buf::Buf(std::unique_ptr<folly::IOBuf> buf) : buf(std::move(buf)) {}
|
|
|
|
|
|
|
|
BufVec::BufVec(std::unique_ptr<folly::IOBuf> buf) {
|
|
|
|
items_.emplace_back(std::make_shared<Buf>(std::move(buf)));
|
|
|
|
}
|
|
|
|
|
|
|
|
folly::fbvector<struct iovec> BufVec::getIov() const {
|
|
|
|
folly::fbvector<struct iovec> vec;
|
|
|
|
|
|
|
|
for (const auto& b : items_) {
|
|
|
|
DCHECK(b->fd == -1) << "we don't support splicing yet";
|
|
|
|
b->buf->appendToIov(&vec);
|
|
|
|
}
|
|
|
|
|
|
|
|
return vec;
|
|
|
|
}
|
2017-11-29 07:01:22 +03:00
|
|
|
|
|
|
|
size_t BufVec::size() const {
|
|
|
|
size_t total = 0;
|
|
|
|
for (const auto& b : items_) {
|
|
|
|
total += b->buf->computeChainDataLength();
|
|
|
|
}
|
|
|
|
return total;
|
|
|
|
}
|
|
|
|
|
2017-12-05 22:08:56 +03:00
|
|
|
std::string BufVec::copyData() const {
|
|
|
|
std::string rv;
|
|
|
|
rv.reserve(size());
|
|
|
|
for (const auto& b : items_) {
|
|
|
|
DCHECK(b->fd == -1) << "we don't support splicing yet";
|
|
|
|
const auto* buf = b->buf.get();
|
|
|
|
do {
|
|
|
|
rv.append(reinterpret_cast<const char*>(buf->data()), buf->length());
|
|
|
|
buf = buf->next();
|
|
|
|
} while (buf != b->buf.get());
|
|
|
|
}
|
|
|
|
return rv;
|
|
|
|
}
|
2018-03-20 03:01:15 +03:00
|
|
|
|
2017-11-04 01:58:04 +03:00
|
|
|
} // namespace eden
|
|
|
|
} // namespace facebook
|