97206d5727
This renames the LLDB error class to Status, as discussed on the lldb-dev mailing list. A change of this magnitude cannot easily be done without find and replace, but that has potential to catch unwanted occurrences of common strings such as "Error". Every effort was made to find all the obvious things such as the word "Error" appearing in a string, etc, but it's possible there are still some lingering occurences left around. Hopefully nothing too serious. llvm-svn: 302872
99 lines
3.1 KiB
C++
99 lines
3.1 KiB
C++
//===-- FileSystem.cpp ------------------------------------------*- C++ -*-===//
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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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#include "lldb/Host/windows/windows.h"
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#include <shellapi.h>
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#include <sys/stat.h>
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#include <sys/types.h>
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#include "lldb/Host/FileSystem.h"
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#include "lldb/Host/windows/AutoHandle.h"
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#include "lldb/Host/windows/PosixApi.h"
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#include "llvm/Support/ConvertUTF.h"
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#include "llvm/Support/FileSystem.h"
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using namespace lldb_private;
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const char *FileSystem::DEV_NULL = "nul";
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const char *FileSystem::PATH_CONVERSION_ERROR =
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"Error converting path between UTF-8 and native encoding";
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Status FileSystem::Symlink(const FileSpec &src, const FileSpec &dst) {
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Status error;
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std::wstring wsrc, wdst;
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if (!llvm::ConvertUTF8toWide(src.GetCString(), wsrc) ||
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!llvm::ConvertUTF8toWide(dst.GetCString(), wdst))
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error.SetErrorString(PATH_CONVERSION_ERROR);
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if (error.Fail())
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return error;
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DWORD attrib = ::GetFileAttributesW(wdst.c_str());
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if (attrib == INVALID_FILE_ATTRIBUTES) {
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error.SetError(::GetLastError(), lldb::eErrorTypeWin32);
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return error;
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}
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bool is_directory = !!(attrib & FILE_ATTRIBUTE_DIRECTORY);
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DWORD flag = is_directory ? SYMBOLIC_LINK_FLAG_DIRECTORY : 0;
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BOOL result = ::CreateSymbolicLinkW(wsrc.c_str(), wdst.c_str(), flag);
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if (!result)
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error.SetError(::GetLastError(), lldb::eErrorTypeWin32);
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return error;
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}
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Status FileSystem::Readlink(const FileSpec &src, FileSpec &dst) {
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Status error;
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std::wstring wsrc;
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if (!llvm::ConvertUTF8toWide(src.GetCString(), wsrc)) {
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error.SetErrorString(PATH_CONVERSION_ERROR);
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return error;
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}
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HANDLE h = ::CreateFileW(wsrc.c_str(), GENERIC_READ,
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FILE_SHARE_READ | FILE_SHARE_WRITE, NULL,
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OPEN_EXISTING, FILE_FLAG_OPEN_REPARSE_POINT, NULL);
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if (h == INVALID_HANDLE_VALUE) {
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error.SetError(::GetLastError(), lldb::eErrorTypeWin32);
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return error;
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}
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std::vector<wchar_t> buf(PATH_MAX + 1);
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// Subtract 1 from the path length since this function does not add a null
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// terminator.
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DWORD result = ::GetFinalPathNameByHandleW(
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h, buf.data(), buf.size() - 1, FILE_NAME_NORMALIZED | VOLUME_NAME_DOS);
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std::string path;
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if (result == 0)
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error.SetError(::GetLastError(), lldb::eErrorTypeWin32);
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else if (!llvm::convertWideToUTF8(buf.data(), path))
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error.SetErrorString(PATH_CONVERSION_ERROR);
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else
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dst.SetFile(path, false);
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::CloseHandle(h);
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return error;
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}
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Status FileSystem::ResolveSymbolicLink(const FileSpec &src, FileSpec &dst) {
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return Status("ResolveSymbolicLink() isn't implemented on Windows");
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}
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FILE *FileSystem::Fopen(const char *path, const char *mode) {
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std::wstring wpath, wmode;
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if (!llvm::ConvertUTF8toWide(path, wpath))
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return nullptr;
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if (!llvm::ConvertUTF8toWide(mode, wmode))
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return nullptr;
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FILE *file;
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if (_wfopen_s(&file, wpath.c_str(), wmode.c_str()) != 0)
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return nullptr;
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return file;
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}
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