8ebf741136
This commit adds required files into the offload build closure, which means adding RT_API_ATTRS and other markers. The implementation does not work for CUDA yet, because of std::variant,swap,reverse usage. These issues will be resolved separately (e.g. by using libcudacxx header files).
59 lines
2.1 KiB
C++
59 lines
2.1 KiB
C++
//===-- runtime/internal-unit.h ---------------------------------*- C++ -*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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// Fortran internal I/O "units"
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#ifndef FORTRAN_RUNTIME_IO_INTERNAL_UNIT_H_
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#define FORTRAN_RUNTIME_IO_INTERNAL_UNIT_H_
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#include "connection.h"
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#include "flang/Runtime/descriptor.h"
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#include <cinttypes>
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#include <type_traits>
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namespace Fortran::runtime::io {
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class IoErrorHandler;
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// Points to (but does not own) a CHARACTER scalar or array for internal I/O.
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// Does not buffer.
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template <Direction DIR> class InternalDescriptorUnit : public ConnectionState {
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public:
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using Scalar =
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std::conditional_t<DIR == Direction::Input, const char *, char *>;
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RT_API_ATTRS InternalDescriptorUnit(Scalar, std::size_t chars, int kind);
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RT_API_ATTRS InternalDescriptorUnit(const Descriptor &, const Terminator &);
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RT_API_ATTRS bool Emit(const char *, std::size_t, IoErrorHandler &);
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RT_API_ATTRS std::size_t GetNextInputBytes(const char *&, IoErrorHandler &);
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RT_API_ATTRS bool AdvanceRecord(IoErrorHandler &);
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RT_API_ATTRS void BackspaceRecord(IoErrorHandler &);
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RT_API_ATTRS std::int64_t InquirePos();
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private:
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RT_API_ATTRS Descriptor &descriptor() {
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return staticDescriptor_.descriptor();
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}
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RT_API_ATTRS const Descriptor &descriptor() const {
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return staticDescriptor_.descriptor();
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}
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RT_API_ATTRS Scalar CurrentRecord() const {
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return descriptor().template ZeroBasedIndexedElement<char>(
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currentRecordNumber - 1);
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}
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RT_API_ATTRS void BlankFill(char *, std::size_t);
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RT_API_ATTRS void BlankFillOutputRecord();
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StaticDescriptor<maxRank, true /*addendum*/> staticDescriptor_;
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};
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extern template class InternalDescriptorUnit<Direction::Output>;
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extern template class InternalDescriptorUnit<Direction::Input>;
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} // namespace Fortran::runtime::io
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#endif // FORTRAN_RUNTIME_IO_INTERNAL_UNIT_H_
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