1 //===--- ToolOutputFile.cpp - Implement the tool_output_file class --------===//
2 //
3 // The LLVM Compiler Infrastructure
4 //
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
7 //
8 //===----------------------------------------------------------------------===//
9 //
10 // This implements the tool_output_file class.
11 //
12 //===----------------------------------------------------------------------===//
13
14 #include "llvm/Support/ToolOutputFile.h"
15 #include "llvm/Support/FileSystem.h"
16 #include "llvm/Support/Signals.h"
17 using namespace llvm;
18
CleanupInstaller(StringRef Filename)19 tool_output_file::CleanupInstaller::CleanupInstaller(StringRef Filename)
20 : Filename(Filename), Keep(false) {
21 // Arrange for the file to be deleted if the process is killed.
22 if (Filename != "-")
23 sys::RemoveFileOnSignal(Filename);
24 }
25
~CleanupInstaller()26 tool_output_file::CleanupInstaller::~CleanupInstaller() {
27 // Delete the file if the client hasn't told us not to.
28 if (!Keep && Filename != "-")
29 sys::fs::remove(Filename);
30
31 // Ok, the file is successfully written and closed, or deleted. There's no
32 // further need to clean it up on signals.
33 if (Filename != "-")
34 sys::DontRemoveFileOnSignal(Filename);
35 }
36
tool_output_file(StringRef Filename,std::error_code & EC,sys::fs::OpenFlags Flags)37 tool_output_file::tool_output_file(StringRef Filename, std::error_code &EC,
38 sys::fs::OpenFlags Flags)
39 : Installer(Filename), OS(Filename, EC, Flags) {
40 // If open fails, no cleanup is needed.
41 if (EC)
42 Installer.Keep = true;
43 }
44
tool_output_file(StringRef Filename,int FD)45 tool_output_file::tool_output_file(StringRef Filename, int FD)
46 : Installer(Filename), OS(FD, true) {}
47