BlockStorage/repertory
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refactor
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This commit is contained in:
Scott E. Graves
2024-12-27 15:47:24 -06:00
parent 6ad65d30da
commit 520f5974f3
1 changed files with 27 additions and 27 deletions
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54
repertory/librepertory/src/file_manager/ring_buffer_open_file.cpp
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@ -257,33 +257,6 @@ auto ring_buffer_open_file::native_operation(
return do_io([&]() -> api_error { return callback(nf_->get_handle()); });
}
void ring_buffer_open_file::reverse(std::size_t count) {
mutex_lock chunk_lock(chunk_mtx_);
count = std::min(ring_pos_, count);
if ((ring_pos_ - count) >= ring_begin_) {
ring_pos_ -= count;
} else {
auto removed = count - (ring_pos_ - ring_begin_);
if (removed >= ring_state_.size()) {
ring_state_.set(0U, ring_state_.size(), false);
ring_pos_ -= count;
ring_begin_ = ring_pos_;
} else {
for (std::size_t idx = 0U; idx < removed; ++idx) {
ring_state_[(ring_end_ - idx) % ring_state_.size()] = false;
}
ring_begin_ -= removed;
ring_pos_ -= count;
}
ring_end_ =
std::min(total_chunks_ - 1U, ring_begin_ + ring_state_.size() - 1U);
}
chunk_notify_.notify_all();
}
auto ring_buffer_open_file::read(std::size_t read_size,
std::uint64_t read_offset,
data_buffer &data) -> api_error {
@ -413,6 +386,33 @@ void ring_buffer_open_file::reader_thread() {
api_error::download_stopped);
}
void ring_buffer_open_file::reverse(std::size_t count) {
mutex_lock chunk_lock(chunk_mtx_);
count = std::min(ring_pos_, count);
if ((ring_pos_ - count) >= ring_begin_) {
ring_pos_ -= count;
} else {
auto removed = count - (ring_pos_ - ring_begin_);
if (removed >= ring_state_.size()) {
ring_state_.set(0U, ring_state_.size(), false);
ring_pos_ -= count;
ring_begin_ = ring_pos_;
} else {
for (std::size_t idx = 0U; idx < removed; ++idx) {
ring_state_[(ring_end_ - idx) % ring_state_.size()] = false;
}
ring_begin_ -= removed;
ring_pos_ -= count;
}
ring_end_ =
std::min(total_chunks_ - 1U, ring_begin_ + ring_state_.size() - 1U);
}
chunk_notify_.notify_all();
}
void ring_buffer_open_file::set(std::size_t first_chunk,
std::size_t current_chunk) {
mutex_lock chunk_lock(chunk_mtx_);