libfilezilla
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Base class for threaded readers. More...
#include <reader.hpp>
Public Member Functions | |
reader_base (reader_base const &)=delete | |
reader_base (std::wstring &&name, aio_buffer_pool &pool, size_t max_buffers) noexcept | |
Constructs a reader. More... | |
reader_base (std::wstring_view name, aio_buffer_pool &pool, size_t max_buffers) noexcept | |
Public Member Functions inherited from reader_base | |
reader_base (reader_base const &)=delete | |
reader_base & | operator= (reader_base const &)=delete |
void | close () |
virtual bool | seekable () const |
bool | seek (uint64_t offset, uint64_t size=nosize) |
If seek fails, the reader is in an undefined state and must be closed. | |
bool | rewind () |
Only seekable readers can be rewound. | |
std::wstring const & | name () const |
virtual uint64_t | size () const |
Size of the reader. If the size is indetermined, nosize is returned. | |
virtual datetime | mtime () const |
Last modification time, might be indetermined. | |
std::pair< aio_result, buffer_lease > | get_buffer (aio_waiter &h) |
Gets the next buffer with data from the reader. More... | |
std::pair< aio_result, buffer_lease > | get_buffer (event_handler &h) |
bool | error () const |
Public Member Functions inherited from aio_waitable | |
void | remove_waiter (aio_waiter &h) |
void | remove_waiter (event_handler &h) |
Protected Member Functions | |
virtual std::pair< aio_result, buffer_lease > | do_get_buffer (scoped_lock &l) override |
void | wakeup (scoped_lock &l) |
Protected Member Functions inherited from reader_base | |
reader_base (std::wstring &&name, aio_buffer_pool &pool, size_t max_buffers) noexcept | |
Constructs a reader. More... | |
reader_base (std::wstring_view name, aio_buffer_pool &pool, size_t max_buffers) noexcept | |
virtual bool | do_seek (scoped_lock &) |
virtual void | do_close (scoped_lock &) |
Protected Member Functions inherited from aio_waiter | |
virtual void | on_buffer_availability (aio_waitable const *w)=0 |
Protected Member Functions inherited from aio_waitable | |
void | remove_waiters () |
Call in destructor of most-derived class. | |
void | add_waiter (aio_waiter &h) |
void | add_waiter (event_handler &h) |
void | signal_availibility () |
void | remove_waiter (aio_waiter &h) |
void | remove_waiter (event_handler &h) |
Protected Attributes | |
condition | cond_ |
async_task | task_ |
bool | quit_ {} |
Protected Attributes inherited from reader_base | |
mutex | mtx_ |
aio_buffer_pool & | buffer_pool_ |
logger_interface & | logger_ |
std::wstring const | name_ |
size_t const | max_buffers_ {} |
std::list< buffer_lease > | buffers_ |
uint64_t | size_ {nosize} |
uint64_t | max_size_ {nosize} |
uint64_t | start_offset_ {nosize} |
uint64_t | remaining_ {nosize} |
bool | get_buffer_called_ {} |
bool | error_ {} |
bool | eof_ {} |
Additional Inherited Members | |
Public Types inherited from aio_base | |
using | size_type = uint64_t |
Static Public Attributes inherited from aio_base | |
static constexpr auto | nosize = static_cast<size_type>(-1) |
Base class for threaded readers.
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inlinenoexcept |
Constructs a reader.
The passed aio_buffer_pool
must live longer than the reader.
max_buffers
controls the amount of buffers the reader is prepared to use at any given time.