| 1 | //===-- lib/runtime/connection.cpp ------------------------------*- C++ -*-===// |
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| 2 | // |
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| 3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
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| 4 | // See https://llvm.org/LICENSE.txt for license information. |
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| 5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
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| 6 | // |
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| 7 | //===----------------------------------------------------------------------===// |
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| 8 | |
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| 9 | #include "flang-rt/runtime/connection.h" |
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| 10 | #include "flang-rt/runtime/environment.h" |
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| 11 | #include "flang-rt/runtime/io-stmt.h" |
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| 12 | |
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| 13 | namespace Fortran::runtime::io { |
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| 14 | RT_OFFLOAD_API_GROUP_BEGIN |
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| 15 | |
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| 16 | SavedPosition::SavedPosition(IoStatementState &io) : io_{io} { |
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| 17 | ConnectionState &conn{io_.GetConnectionState()}; |
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| 18 | saved_ = conn; |
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| 19 | conn.pinnedFrame = true; |
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| 20 | } |
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| 21 | |
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| 22 | SavedPosition::~SavedPosition() { |
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| 23 | if (!cancelled_) { |
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| 24 | ConnectionState &conn{io_.GetConnectionState()}; |
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| 25 | while (conn.currentRecordNumber > saved_.currentRecordNumber) { |
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| 26 | io_.BackspaceRecord(); |
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| 27 | } |
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| 28 | conn.leftTabLimit = saved_.leftTabLimit; |
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| 29 | conn.furthestPositionInRecord = saved_.furthestPositionInRecord; |
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| 30 | conn.positionInRecord = saved_.positionInRecord; |
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| 31 | conn.pinnedFrame = saved_.pinnedFrame; |
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| 32 | } |
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| 33 | } |
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| 34 | |
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| 35 | RT_OFFLOAD_API_GROUP_END |
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| 36 | } // namespace Fortran::runtime::io |
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| 37 | |
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