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68c0efac35
This patch also adds a simpler version of sys::fs::remove and a tool_output_file constructor for when we already have an open file. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184095 91177308-0d34-0410-b5e6-96231b3b80d8
65 lines
2.2 KiB
C++
65 lines
2.2 KiB
C++
//===- ToolOutputFile.h - Output files for compiler-like tools -----------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This file defines the tool_output_file class.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_SUPPORT_TOOLOUTPUTFILE_H
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#define LLVM_SUPPORT_TOOLOUTPUTFILE_H
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#include "llvm/Support/raw_ostream.h"
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namespace llvm {
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/// tool_output_file - This class contains a raw_fd_ostream and adds a
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/// few extra features commonly needed for compiler-like tool output files:
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/// - The file is automatically deleted if the process is killed.
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/// - The file is automatically deleted when the tool_output_file
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/// object is destroyed unless the client calls keep().
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class tool_output_file {
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/// Installer - This class is declared before the raw_fd_ostream so that
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/// it is constructed before the raw_fd_ostream is constructed and
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/// destructed after the raw_fd_ostream is destructed. It installs
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/// cleanups in its constructor and uninstalls them in its destructor.
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class CleanupInstaller {
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/// Filename - The name of the file.
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std::string Filename;
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public:
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/// Keep - The flag which indicates whether we should not delete the file.
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bool Keep;
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explicit CleanupInstaller(const char *filename);
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~CleanupInstaller();
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} Installer;
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/// OS - The contained stream. This is intentionally declared after
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/// Installer.
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raw_fd_ostream OS;
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public:
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/// tool_output_file - This constructor's arguments are passed to
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/// to raw_fd_ostream's constructor.
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tool_output_file(const char *filename, std::string &ErrorInfo,
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unsigned Flags = 0);
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tool_output_file(const char *Filename, int FD);
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/// os - Return the contained raw_fd_ostream.
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raw_fd_ostream &os() { return OS; }
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/// keep - Indicate that the tool's job wrt this output file has been
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/// successful and the file should not be deleted.
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void keep() { Installer.Keep = true; }
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};
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} // end llvm namespace
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#endif
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