fe2a1a3a80
Some notes i made when adding stream support: The tinfoil API makes it hard / impossible to multi thread the file upload because each data transfer passes the the file name and offset, meaning that it can and will change files and offset in the middle of a transfer So that prevents the read thread from running freely in the background and the pull thread pulling data when requested. The extension adds a flag to the usb header which if set, enables stream mode (same as ftp installs). This removes random access, but allows for multi threading as the data will be requested in order.
33 lines
1.3 KiB
C++
33 lines
1.3 KiB
C++
#pragma once
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#include "ui/progress_box.hpp"
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#include <functional>
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#include <switch.h>
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namespace sphaira::thread {
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using ReadCallback = std::function<Result(void* data, s64 off, s64 size, u64* bytes_read)>;
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using WriteCallback = std::function<Result(const void* data, s64 off, s64 size)>;
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// used for pull api
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using PullCallback = std::function<Result(void* data, s64 size, u64* bytes_read)>;
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using StartThreadCallback = std::function<Result(void)>;
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// called when threads are started.
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// call pull() to receive data.
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using StartCallback = std::function<Result(PullCallback pull)>;
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// same as above, but the callee must call start() in order to start threads.
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// this is for convenience as there may be race conditions otherwise, such as the read thread
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// trying to read from the pull callback before it is set.
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using StartCallback2 = std::function<Result(StartThreadCallback start, PullCallback pull)>;
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// reads data from rfunc into wfunc.
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Result Transfer(ui::ProgressBox* pbox, s64 size, ReadCallback rfunc, WriteCallback wfunc);
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// reads data from rfunc, pull data from provided pull() callback.
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Result TransferPull(ui::ProgressBox* pbox, s64 size, ReadCallback rfunc, StartCallback sfunc);
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Result TransferPull(ui::ProgressBox* pbox, s64 size, ReadCallback rfunc, StartCallback2 sfunc);
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} // namespace sphaira::thread
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