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author | Chris Lattner <sabre@nondot.org> | 2008-04-01 06:20:44 +0000 |
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committer | Chris Lattner <sabre@nondot.org> | 2008-04-01 06:20:44 +0000 |
commit | 56107bb90b97cfdb2024ab76c984c0a26c46b5f8 (patch) | |
tree | 144b9660cc8f70537979855612632636ef22f769 /include/llvm | |
parent | 7bbb6d645c95e434298def53ff4450dba21c0af7 (diff) | |
download | external_llvm-56107bb90b97cfdb2024ab76c984c0a26c46b5f8.zip external_llvm-56107bb90b97cfdb2024ab76c984c0a26c46b5f8.tar.gz external_llvm-56107bb90b97cfdb2024ab76c984c0a26c46b5f8.tar.bz2 |
MappedFile is dead, remove it.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49035 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'include/llvm')
-rw-r--r-- | include/llvm/System/MappedFile.h | 85 |
1 files changed, 0 insertions, 85 deletions
diff --git a/include/llvm/System/MappedFile.h b/include/llvm/System/MappedFile.h deleted file mode 100644 index 127c04f..0000000 --- a/include/llvm/System/MappedFile.h +++ /dev/null @@ -1,85 +0,0 @@ -//===- llvm/System/MappedFile.h - MappedFile OS Concept ---------*- C++ -*-===// -// -// The LLVM Compiler Infrastructure -// -// This file is distributed under the University of Illinois Open Source -// License. See LICENSE.TXT for details. -// -//===----------------------------------------------------------------------===// -// -// This file declares the llvm::sys::MappedFile class. -// -//===----------------------------------------------------------------------===// - -#ifndef LLVM_SYSTEM_MAPPEDFILE_H -#define LLVM_SYSTEM_MAPPEDFILE_H - -#include "llvm/System/Path.h" - -namespace llvm { -namespace sys { - - /// Forward declare a class used for holding platform specific information - /// that needs to be - struct MappedFileInfo; - - /// This class provides an abstraction for a memory mapped file in the - /// operating system's filesystem. It provides platform independent operations - /// for mapping a file into memory for read access. - class MappedFile { - sys::PathWithStatus Path; ///< Path to the file. - void *BasePtr; ///< Pointer to the base memory address - mutable MappedFileInfo *MapInfo; ///< Platform specific info for the mapping - - MappedFile& operator=(const MappedFile &that); // DO NOT IMPLEMENT - MappedFile(const MappedFile &that); // DO NOT IMPLEMENT - public: - MappedFile() : BasePtr(0), MapInfo(0) {} - - /// Destruct a MappedFile and release all memory associated with it. - ~MappedFile() { close(); } - - public: // Accessors - - /// This function determines if the file is currently mapped or not. - bool isMapped() const { return BasePtr != 0; } - - /// getBase - Returns a const void* pointer to the base address of the file - /// mapping. This is the memory address of the first byte in the file. - const void *getBase() const { return BasePtr; } - - /// This function returns a reference to the sys::Path object kept by the - /// MappedFile object. This contains the path to the file that is or - /// will be mapped. - const sys::PathWithStatus &path() const { return Path; } - - /// This function returns the number of bytes in the file. - size_t size() const; - - public: // Mutators - - /// Open a file to be mapped and get its size but don't map it yet. Return - /// true on error. - bool open(const sys::Path &P, std::string *ErrMsg = 0) { - Path = P; - return initialize(ErrMsg); - } - - /// unmap - Remove the mapped file from memory. - void unmap(); - - /// map - Reserve space for the file, map it into memory, and return a - /// pointer to it. This returns the base memory address of the mapped file - /// or 0 if an error occurred. - const void *map(std::string* ErrMsg = 0); - - void close() { if (MapInfo) terminate(); } - - private: - bool initialize(std::string *ErrMsg); - void terminate(); - }; -} // end namespace sys -} // end namespace llvm - -#endif |