BlockStorage/repertory
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refactor
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This commit is contained in:
Scott E. Graves
2024-12-28 13:52:31 -06:00
parent 1809f5a7de
commit 9ae56c17a1
3 changed files with 14 additions and 15 deletions
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2
repertory/librepertory/include/file_manager/open_file.hpp
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@ -94,7 +94,7 @@ private:
void set_read_state(boost::dynamic_bitset<> read_state);
void update_background_reader(std::size_t read_chunk);
void update_reader(std::size_t chunk);
public:
auto close() -> bool override;

25
repertory/librepertory/src/file_manager/open_file.cpp
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@ -449,7 +449,7 @@ auto open_file::native_operation(
auto read_state = get_read_state();
if (not is_empty_file && (last_chunk < read_state.size())) {
rw_lock.unlock();
update_background_reader(0U);
update_reader(0U);
download_chunk(last_chunk, false, true);
if (get_api_error() != api_error::success) {
@ -575,7 +575,7 @@ auto open_file::read(std::size_t read_size, std::uint64_t read_offset,
auto end_chunk =
static_cast<std::size_t>((read_size + read_offset) / get_chunk_size());
update_background_reader(begin_chunk);
update_reader(begin_chunk);
download_range(begin_chunk, end_chunk, true);
if (get_api_error() != api_error::success) {
@ -652,18 +652,22 @@ void open_file::set_read_state(boost::dynamic_bitset<> read_state) {
read_state_ = std::move(read_state);
}
void open_file::update_background_reader(std::size_t read_chunk) {
void open_file::update_reader(std::size_t chunk) {
recur_mutex_lock rw_lock(rw_mtx_);
read_chunk_ = read_chunk;
read_chunk_ = chunk;
if (reader_thread_ || stop_requested_) {
return;
}
reader_thread_ = std::make_unique<std::thread>([this]() {
std::size_t next_chunk{};
unique_recur_mutex_lock lock(rw_mtx_);
auto next_chunk{read_chunk_};
lock.unlock();
while (not stop_requested_) {
unique_recur_mutex_lock lock(rw_mtx_);
lock.lock();
auto read_state = get_read_state();
if ((get_file_size() == 0U) || read_state.all()) {
lock.unlock();
@ -671,12 +675,7 @@ void open_file::update_background_reader(std::size_t read_chunk) {
continue;
}
do {
next_chunk = read_chunk_ =
((read_chunk_ + 1U) >= read_state.size()) ? 0U : read_chunk_ + 1U;
} while ((next_chunk != 0U) && (get_active_downloads().find(next_chunk) !=
get_active_downloads().end()));
next_chunk = next_chunk + 1U >= read_state.size() ? 0U : next_chunk + 1U;
lock.unlock();
download_chunk(next_chunk, true, false);
@ -711,7 +710,7 @@ auto open_file::write(std::uint64_t write_offset, const data_buffer &data,
auto end_chunk =
static_cast<std::size_t>((write_offset + data.size()) / get_chunk_size());
update_background_reader(begin_chunk);
update_reader(begin_chunk);
download_range(begin_chunk, std::min(get_read_state().size() - 1U, end_chunk),
true);

2
repertory/librepertory/src/file_manager/ring_buffer_base.cpp
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@ -252,7 +252,7 @@ auto ring_buffer_base::read(std::size_t read_size, std::uint64_t read_offset,
void ring_buffer_base::reader_thread() {
unique_mutex_lock chunk_lock(chunk_mtx_);
auto next_chunk = ring_pos_;
auto next_chunk{ring_pos_};
chunk_notify_.notify_all();
chunk_lock.unlock();