mirror of
https://github.com/wpilibsuite/allwpilib
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e2314f3528
- Provide an EventLoopRunner to run uv::Loop on a separate thread. - Add raw_ostream wrapper for uv::Buffer.
85 lines
2.2 KiB
C++
85 lines
2.2 KiB
C++
/*----------------------------------------------------------------------------*/
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/* Copyright (c) 2018 FIRST. All Rights Reserved. */
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/* Open Source Software - may be modified and shared by FRC teams. The code */
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/* must be accompanied by the FIRST BSD license file in the root directory of */
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/* the project. */
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/*----------------------------------------------------------------------------*/
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#ifndef WPIUTIL_WPI_UV_FSEVENT_H_
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#define WPIUTIL_WPI_UV_FSEVENT_H_
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#include <uv.h>
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#include <memory>
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#include <string>
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#include "wpi/Signal.h"
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#include "wpi/Twine.h"
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#include "wpi/uv/Handle.h"
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namespace wpi {
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namespace uv {
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class Loop;
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/**
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* Filesystem Event handle.
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*/
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class FsEvent final : public HandleImpl<FsEvent, uv_fs_event_t> {
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struct private_init {};
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public:
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explicit FsEvent(const private_init&) {}
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~FsEvent() noexcept override = default;
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/**
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* Create a filesystem event handle.
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*
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* @param loop Loop object where this handle runs.
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*/
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static std::shared_ptr<FsEvent> Create(Loop& loop);
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/**
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* Create a filesystem event handle.
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*
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* @param loop Loop object where this handle runs.
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*/
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static std::shared_ptr<FsEvent> Create(const std::shared_ptr<Loop>& loop) {
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return Create(*loop);
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}
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/**
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* Start watching the specified path for changes.
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*
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* @param path Path to watch for changes
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* @param events Bitmask of event flags. Only UV_FS_EVENT_RECURSIVE is
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* supported (and only on OSX and Windows).
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*/
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void Start(const Twine& path, unsigned int flags = 0);
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/**
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* Stop watching for changes.
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*/
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void Stop() { Invoke(&uv_fs_event_stop, GetRaw()); }
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/**
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* Get the path being monitored. Signals error and returns empty string if
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* an error occurs.
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* @return Monitored path.
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*/
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std::string GetPath();
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/**
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* Signal generated when a filesystem change occurs. The first parameter
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* is the filename (if a directory was passed to Start(), the filename is
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* relative to that directory). The second parameter is an ORed mask of
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* UV_RENAME and UV_CHANGE.
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*/
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sig::Signal<const char*, int> fsEvent;
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};
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} // namespace uv
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} // namespace wpi
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#endif // WPIUTIL_WPI_UV_FSEVENT_H_
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