24 lines
722 B
C++
24 lines
722 B
C++
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#ifndef fd_hh_INCLUDED
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#define fd_hh_INCLUDED
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namespace Kakoune
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{
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template<auto close_fn>
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struct UniqueDescriptor
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{
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UniqueDescriptor(int descriptor = -1) : descriptor{descriptor} {}
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UniqueDescriptor(UniqueDescriptor&& other) : descriptor{other.descriptor} { other.descriptor = -1; }
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UniqueDescriptor& operator=(UniqueDescriptor&& other) { std::swap(descriptor, other.descriptor); other.close(); return *this; }
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~UniqueDescriptor() { close(); }
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explicit operator int() const { return descriptor; }
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explicit operator bool() const { return descriptor != -1; }
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void close() { if (descriptor != -1) { close_fn(descriptor); descriptor = -1; } }
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int descriptor;
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};
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}
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#endif // fd_hh_INCLUDED
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