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78 lines
1.5 KiB
78 lines
1.5 KiB
#pragma once
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#ifndef __cplusplus
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#error "C++ header only"
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#endif
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namespace pr {
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namespace details [[gnu::visibility("inernal")]]{
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template<typename T>
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T* take(T*& ptr) noexcept { return std::exchange(ptr, nullptr); }
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}
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struct Bar {
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Bar() noexcept = default;
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Bar(const Bar&) noexcept = default;
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Bar(Bar&&) noexcept = default;
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Bar& operator=(const Bar&) noexcept = default;
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Bar& operator=(Bar&&) noexcept = default;
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virtual ~Bar() = default;
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virtual void spin(int) =0;
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};
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enum bar_kind {
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BRK_UNTRACKED,
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BRK_TRACKED,
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};
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template<bar_kind = BRK_UNTRACKED>
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struct progress;
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template<>
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struct progress<BRK_UNTRACKED>
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: public virtual Bar {
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progress(FILE* to);
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progress(progress const&);
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inline progress(progress&& mv) noexcept
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: Bar()
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, _perc(mv._perc)
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, _output(details::take(mv._output)) {}
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virtual ~progress();
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void spin(int) override;
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//TODO: this
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protected:
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union {
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double _perc;
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size_t _num; // not used here
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};
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FILE* _output;
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};
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template<>
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class progress<BRK_TRACKED>
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: public progress<BRK_UNTRACKED> {
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using base_t = progress<BRK_UNTRACKED>;
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public:
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inline progress(FILE* to, size_t max) : base_t(to), _num(0), _max(max) {}
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progress(const progress&) = default;
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progress(progress&& m) : base_t(std::move(m)), _num(std::exchange(m._num, 0)), _max(m._max) {}
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void spin(int) override;
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//TODO: this
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virtual ~progress() {}
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protected:
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using base_t::_output;
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private:
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using base_t::_num;
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size_t _max;
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};
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}
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