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 19 tool_output_file::CleanupInstaller::CleanupInstaller(const char *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 26 tool_output_file::CleanupInstaller::~CleanupInstaller() { 27 // Delete the file if the client hasn't told us not to. 28 if (!Keep && Filename != "-") { 29 bool Existed; 30 sys::fs::remove(Filename, Existed); 31 } 32 33 // Ok, the file is successfully written and closed, or deleted. There's no 34 // further need to clean it up on signals. 35 if (Filename != "-") 36 sys::DontRemoveFileOnSignal(Filename); 37 } 38 39 tool_output_file::tool_output_file(const char *filename, std::string &ErrorInfo, 40 sys::fs::OpenFlags Flags) 41 : Installer(filename), OS(filename, ErrorInfo, Flags) { 42 // If open fails, no cleanup is needed. 43 if (!ErrorInfo.empty()) 44 Installer.Keep = true; 45 } 46 47 tool_output_file::tool_output_file(const char *Filename, int FD) 48 : Installer(Filename), OS(FD, true) { 49 } 50