54f37133b7
Mostly mechanical changes in preparation of extracting the Flang-RT "subproject" in #110217. This PR intends to only move pre-existing files to the new folder structure, with no behavioral change. Common files (headers, testing, cmake) shared by Flang-RT and Flang remain in `flang/`. Some cosmetic changes and files paths were necessary: * Relative paths to the new path for the source files and `add_subdirectory`. * Add the new location's include directory to `include_directories` * The unittest/Evaluate directory has unitests for flang-rt and Flang. A new `CMakeLists.txt` was introduced for the flang-rt tests. * Change the `#include` paths relative to the include directive * clang-format on the `#include` directives * Since the paths are part if the copyright header and include guards, a script was used to canonicalize those * `test/Runtime` and runtime tests in `test/Driver` are moved, but the lit.cfg.py mechanism to execute the will only be added in #110217.
64 lines
2.2 KiB
C++
64 lines
2.2 KiB
C++
//===-- lib/runtime/connection.cpp ------------------------------*- 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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#include "flang-rt/runtime/connection.h"
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#include "flang-rt/runtime/environment.h"
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#include "flang-rt/runtime/io-stmt.h"
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#include <algorithm>
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namespace Fortran::runtime::io {
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RT_OFFLOAD_API_GROUP_BEGIN
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RT_API_ATTRS std::size_t ConnectionState::RemainingSpaceInRecord() const {
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auto recl{recordLength.value_or(openRecl.value_or(
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executionEnvironment.listDirectedOutputLineLengthLimit))};
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return positionInRecord >= recl ? 0 : recl - positionInRecord;
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}
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RT_API_ATTRS bool ConnectionState::NeedAdvance(std::size_t width) const {
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return positionInRecord > 0 && width > RemainingSpaceInRecord();
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}
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RT_API_ATTRS bool ConnectionState::IsAtEOF() const {
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return endfileRecordNumber && currentRecordNumber >= *endfileRecordNumber;
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}
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RT_API_ATTRS bool ConnectionState::IsAfterEndfile() const {
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return endfileRecordNumber && currentRecordNumber > *endfileRecordNumber;
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}
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RT_API_ATTRS void ConnectionState::HandleAbsolutePosition(std::int64_t n) {
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positionInRecord = std::max(n, std::int64_t{0}) + leftTabLimit.value_or(0);
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}
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RT_API_ATTRS void ConnectionState::HandleRelativePosition(std::int64_t n) {
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positionInRecord = std::max(leftTabLimit.value_or(0), positionInRecord + n);
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}
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SavedPosition::SavedPosition(IoStatementState &io) : io_{io} {
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ConnectionState &conn{io_.GetConnectionState()};
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saved_ = conn;
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conn.pinnedFrame = true;
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}
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SavedPosition::~SavedPosition() {
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if (!cancelled_) {
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ConnectionState &conn{io_.GetConnectionState()};
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while (conn.currentRecordNumber > saved_.currentRecordNumber) {
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io_.BackspaceRecord();
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}
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conn.leftTabLimit = saved_.leftTabLimit;
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conn.furthestPositionInRecord = saved_.furthestPositionInRecord;
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conn.positionInRecord = saved_.positionInRecord;
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conn.pinnedFrame = saved_.pinnedFrame;
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}
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}
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RT_OFFLOAD_API_GROUP_END
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} // namespace Fortran::runtime::io
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