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annotate lib/Support/ToolOutputFile.cpp @ 124:4fa72497ed5d

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fix
author mir3636
date Thu, 30 Nov 2017 20:04:56 +0900
parents 803732b1fca8
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 //===--- ToolOutputFile.cpp - Implement the ToolOutputFile class --------===//
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2 //
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3 // The LLVM Compiler Infrastructure
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4 //
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5 // This file is distributed under the University of Illinois Open Source
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6 // License. See LICENSE.TXT for details.
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7 //
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8 //===----------------------------------------------------------------------===//
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9 //
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10 // This implements the ToolOutputFile class.
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11 //
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12 //===----------------------------------------------------------------------===//
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14 #include "llvm/Support/ToolOutputFile.h"
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15 #include "llvm/Support/FileSystem.h"
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16 #include "llvm/Support/Signals.h"
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17 using namespace llvm;
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19 ToolOutputFile::CleanupInstaller::CleanupInstaller(StringRef Filename)
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20 : Filename(Filename), Keep(false) {
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21 // Arrange for the file to be deleted if the process is killed.
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22 if (Filename != "-")
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23 sys::RemoveFileOnSignal(Filename);
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24 }
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26 ToolOutputFile::CleanupInstaller::~CleanupInstaller() {
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27 // Delete the file if the client hasn't told us not to.
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28 if (!Keep && Filename != "-")
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29 sys::fs::remove(Filename);
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31 // Ok, the file is successfully written and closed, or deleted. There's no
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32 // further need to clean it up on signals.
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33 if (Filename != "-")
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34 sys::DontRemoveFileOnSignal(Filename);
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35 }
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37 ToolOutputFile::ToolOutputFile(StringRef Filename, std::error_code &EC,
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38 sys::fs::OpenFlags Flags)
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39 : Installer(Filename), OS(Filename, EC, Flags) {
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40 // If open fails, no cleanup is needed.
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41 if (EC)
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42 Installer.Keep = true;
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43 }
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45 ToolOutputFile::ToolOutputFile(StringRef Filename, int FD)
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46 : Installer(Filename), OS(FD, true) {}