60 lines
1.8 KiB
C++
60 lines
1.8 KiB
C++
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//===--- ToolOutputFile.cpp - Implement the ToolOutputFile class --------===//
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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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//
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// This implements the ToolOutputFile class.
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//
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//===----------------------------------------------------------------------===//
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#include "llvm/Support/ToolOutputFile.h"
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#include "llvm/Support/FileSystem.h"
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#include "llvm/Support/Signals.h"
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using namespace llvm;
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static bool isStdout(StringRef Filename) { return Filename == "-"; }
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ToolOutputFile::CleanupInstaller::CleanupInstaller(StringRef Filename)
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: Filename(std::string(Filename)), Keep(false) {
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// Arrange for the file to be deleted if the process is killed.
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if (!isStdout(Filename))
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sys::RemoveFileOnSignal(Filename);
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}
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ToolOutputFile::CleanupInstaller::~CleanupInstaller() {
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if (isStdout(Filename))
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return;
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// Delete the file if the client hasn't told us not to.
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if (!Keep)
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sys::fs::remove(Filename);
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// Ok, the file is successfully written and closed, or deleted. There's no
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// further need to clean it up on signals.
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sys::DontRemoveFileOnSignal(Filename);
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}
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ToolOutputFile::ToolOutputFile(StringRef Filename, std::error_code &EC,
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sys::fs::OpenFlags Flags)
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: Installer(Filename) {
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if (isStdout(Filename)) {
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OS = &outs();
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EC = std::error_code();
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return;
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}
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OSHolder.emplace(Filename, EC, Flags);
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OS = OSHolder.getPointer();
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// If open fails, no cleanup is needed.
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if (EC)
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Installer.Keep = true;
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}
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ToolOutputFile::ToolOutputFile(StringRef Filename, int FD)
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: Installer(Filename) {
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OSHolder.emplace(FD, true);
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OS = OSHolder.getPointer();
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}
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