2013-06-26 19:33:03 +00:00
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//===- llvm/Support/Windows/Path.inc - Windows Path Impl --------*- C++ -*-===//
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2010-11-29 22:28:51 +00:00
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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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2013-06-26 19:33:03 +00:00
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// This file implements the Windows specific implementation of the Path API.
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2010-11-29 22:28:51 +00:00
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//
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//===----------------------------------------------------------------------===//
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//===----------------------------------------------------------------------===//
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//=== WARNING: Implementation here must contain only generic Windows code that
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//=== is guaranteed to work on *all* Windows variants.
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//===----------------------------------------------------------------------===//
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2013-07-15 07:15:05 +00:00
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#include "llvm/ADT/STLExtras.h"
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2010-11-29 22:28:51 +00:00
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#include "Windows.h"
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2010-12-03 17:54:07 +00:00
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#include <fcntl.h>
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2010-12-03 01:21:28 +00:00
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#include <io.h>
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2010-12-03 17:54:07 +00:00
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#include <sys/stat.h>
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#include <sys/types.h>
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2010-11-29 22:28:51 +00:00
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2012-08-15 19:05:47 +00:00
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#undef max
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2010-12-03 18:03:28 +00:00
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// MinGW doesn't define this.
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2010-12-03 18:04:11 +00:00
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#ifndef _ERRNO_T_DEFINED
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#define _ERRNO_T_DEFINED
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typedef int errno_t;
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2010-12-03 18:03:28 +00:00
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#endif
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2013-08-07 20:19:31 +00:00
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#ifdef _MSC_VER
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# pragma comment(lib, "advapi32.lib") // This provides CryptAcquireContextW.
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#endif
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2010-12-01 19:32:01 +00:00
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using namespace llvm;
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2013-09-10 19:45:51 +00:00
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using llvm::sys::windows::UTF8ToUTF16;
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using llvm::sys::windows::UTF16ToUTF8;
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2010-12-01 19:32:01 +00:00
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namespace {
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2010-12-03 17:53:23 +00:00
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typedef BOOLEAN (WINAPI *PtrCreateSymbolicLinkW)(
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/*__in*/ LPCWSTR lpSymlinkFileName,
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/*__in*/ LPCWSTR lpTargetFileName,
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/*__in*/ DWORD dwFlags);
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2013-10-07 09:52:36 +00:00
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PtrCreateSymbolicLinkW create_symbolic_link_api =
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PtrCreateSymbolicLinkW(::GetProcAddress(
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::GetModuleHandleW(L"Kernel32.dll"), "CreateSymbolicLinkW"));
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2010-12-03 07:41:25 +00:00
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2010-12-03 01:21:28 +00:00
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error_code TempDir(SmallVectorImpl<wchar_t> &result) {
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retry_temp_dir:
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DWORD len = ::GetTempPathW(result.capacity(), result.begin());
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if (len == 0)
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2010-12-04 18:45:32 +00:00
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return windows_error(::GetLastError());
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2010-12-03 01:21:28 +00:00
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if (len > result.capacity()) {
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result.reserve(len);
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goto retry_temp_dir;
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}
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result.set_size(len);
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2012-02-09 19:24:12 +00:00
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return error_code::success();
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2010-12-03 01:21:28 +00:00
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}
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2010-12-06 04:28:42 +00:00
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bool is_separator(const wchar_t value) {
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switch (value) {
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case L'\\':
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case L'/':
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return true;
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default:
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return false;
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}
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}
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2010-12-01 19:32:01 +00:00
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}
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2013-06-28 03:48:47 +00:00
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// FIXME: mode should be used here and default to user r/w only,
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// it currently comes in as a UNIX mode.
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static error_code createUniqueEntity(const Twine &model, int &result_fd,
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SmallVectorImpl<char> &result_path,
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bool makeAbsolute, unsigned mode,
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FSEntity Type) {
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// Use result_path as temp storage.
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result_path.set_size(0);
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StringRef m = model.toStringRef(result_path);
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SmallVector<wchar_t, 128> model_utf16;
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if (error_code ec = UTF8ToUTF16(m, model_utf16)) return ec;
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if (makeAbsolute) {
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// Make model absolute by prepending a temp directory if it's not already.
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bool absolute = sys::path::is_absolute(m);
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if (!absolute) {
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SmallVector<wchar_t, 64> temp_dir;
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if (error_code ec = TempDir(temp_dir)) return ec;
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// Handle c: by removing it.
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if (model_utf16.size() > 2 && model_utf16[1] == L':') {
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model_utf16.erase(model_utf16.begin(), model_utf16.begin() + 2);
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}
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model_utf16.insert(model_utf16.begin(), temp_dir.begin(), temp_dir.end());
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}
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}
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// Replace '%' with random chars. From here on, DO NOT modify model. It may be
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// needed if the randomly chosen path already exists.
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SmallVector<wchar_t, 128> random_path_utf16;
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// Get a Crypto Provider for CryptGenRandom.
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HCRYPTPROV HCPC;
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if (!::CryptAcquireContextW(&HCPC,
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NULL,
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NULL,
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PROV_RSA_FULL,
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CRYPT_VERIFYCONTEXT))
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return windows_error(::GetLastError());
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ScopedCryptContext CryptoProvider(HCPC);
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retry_random_path:
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random_path_utf16.set_size(0);
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for (SmallVectorImpl<wchar_t>::const_iterator i = model_utf16.begin(),
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e = model_utf16.end();
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i != e; ++i) {
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if (*i == L'%') {
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BYTE val = 0;
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if (!::CryptGenRandom(CryptoProvider, 1, &val))
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return windows_error(::GetLastError());
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2013-10-07 01:00:07 +00:00
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random_path_utf16.push_back(L"0123456789abcdef"[val & 15]);
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2013-06-28 03:48:47 +00:00
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}
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else
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random_path_utf16.push_back(*i);
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}
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// Make random_path_utf16 null terminated.
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random_path_utf16.push_back(0);
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random_path_utf16.pop_back();
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2013-07-19 16:23:54 +00:00
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HANDLE TempFileHandle = INVALID_HANDLE_VALUE;
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2013-06-28 03:48:47 +00:00
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switch (Type) {
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case FS_File: {
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// Try to create + open the path.
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TempFileHandle =
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::CreateFileW(random_path_utf16.begin(), GENERIC_READ | GENERIC_WRITE,
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FILE_SHARE_READ, NULL,
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// Return ERROR_FILE_EXISTS if the file
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// already exists.
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CREATE_NEW, FILE_ATTRIBUTE_TEMPORARY, NULL);
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if (TempFileHandle == INVALID_HANDLE_VALUE) {
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// If the file existed, try again, otherwise, error.
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error_code ec = windows_error(::GetLastError());
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if (ec == windows_error::file_exists)
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goto retry_random_path;
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return ec;
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}
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// Convert the Windows API file handle into a C-runtime handle.
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int fd = ::_open_osfhandle(intptr_t(TempFileHandle), 0);
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if (fd == -1) {
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::CloseHandle(TempFileHandle);
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::DeleteFileW(random_path_utf16.begin());
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// MSDN doesn't say anything about _open_osfhandle setting errno or
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// GetLastError(), so just return invalid_handle.
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return windows_error::invalid_handle;
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}
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result_fd = fd;
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break;
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}
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case FS_Name: {
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DWORD attributes = ::GetFileAttributesW(random_path_utf16.begin());
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if (attributes != INVALID_FILE_ATTRIBUTES)
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goto retry_random_path;
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error_code EC = make_error_code(windows_error(::GetLastError()));
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if (EC != windows_error::file_not_found &&
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EC != windows_error::path_not_found)
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return EC;
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break;
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}
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case FS_Dir:
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if (!::CreateDirectoryW(random_path_utf16.begin(), NULL)) {
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error_code EC = windows_error(::GetLastError());
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if (EC != windows_error::already_exists)
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return EC;
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goto retry_random_path;
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}
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break;
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}
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// Set result_path to the utf-8 representation of the path.
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if (error_code ec = UTF16ToUTF8(random_path_utf16.begin(),
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random_path_utf16.size(), result_path)) {
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switch (Type) {
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case FS_File:
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::CloseHandle(TempFileHandle);
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::DeleteFileW(random_path_utf16.begin());
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case FS_Name:
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break;
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case FS_Dir:
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::RemoveDirectoryW(random_path_utf16.begin());
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break;
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}
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return ec;
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}
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return error_code::success();
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}
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2010-11-29 22:28:51 +00:00
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namespace llvm {
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namespace sys {
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2010-12-07 01:22:31 +00:00
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namespace fs {
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2010-11-29 22:28:51 +00:00
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2013-06-26 05:01:35 +00:00
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std::string getMainExecutable(const char *argv0, void *MainExecAddr) {
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2013-10-07 09:52:36 +00:00
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SmallVector<wchar_t, MAX_PATH> PathName;
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DWORD Size = ::GetModuleFileNameW(NULL, PathName.data(), PathName.capacity());
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// A zero return value indicates a failure other than insufficient space.
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if (Size == 0)
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return "";
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// Insufficient space is determined by a return value equal to the size of
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// the buffer passed in.
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if (Size == PathName.capacity())
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return "";
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// On success, GetModuleFileNameW returns the number of characters written to
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// the buffer not including the NULL terminator.
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PathName.set_size(Size);
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// Convert the result from UTF-16 to UTF-8.
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SmallVector<char, MAX_PATH> PathNameUTF8;
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if (UTF16ToUTF8(PathName.data(), PathName.size(), PathNameUTF8))
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return "";
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return std::string(PathNameUTF8.data());
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2013-06-26 05:01:35 +00:00
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}
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2013-07-29 21:55:38 +00:00
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UniqueID file_status::getUniqueID() const {
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2013-07-29 21:26:49 +00:00
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// The file is uniquely identified by the volume serial number along
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// with the 64-bit file identifier.
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uint64_t FileID = (static_cast<uint64_t>(FileIndexHigh) << 32ULL) |
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static_cast<uint64_t>(FileIndexLow);
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return UniqueID(VolumeSerialNumber, FileID);
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}
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2013-06-26 05:01:35 +00:00
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2013-06-20 21:51:49 +00:00
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TimeValue file_status::getLastModificationTime() const {
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2013-06-20 18:42:04 +00:00
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ULARGE_INTEGER UI;
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UI.LowPart = LastWriteTimeLow;
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UI.HighPart = LastWriteTimeHigh;
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TimeValue Ret;
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Ret.fromWin32Time(UI.QuadPart);
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return Ret;
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}
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2010-11-29 22:28:51 +00:00
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error_code current_path(SmallVectorImpl<char> &result) {
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2013-10-07 01:00:07 +00:00
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SmallVector<wchar_t, MAX_PATH> cur_path;
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DWORD len = MAX_PATH;
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2010-11-29 22:28:51 +00:00
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2013-10-07 01:00:07 +00:00
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do {
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2013-10-06 20:44:34 +00:00
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cur_path.reserve(len);
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2013-10-07 01:00:07 +00:00
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len = ::GetCurrentDirectoryW(cur_path.capacity(), cur_path.data());
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// A zero return value indicates a failure other than insufficient space.
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if (len == 0)
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return windows_error(::GetLastError());
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// If there's insufficient space, the len returned is larger than the len
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// given.
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} while (len > cur_path.capacity());
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2010-11-29 22:28:51 +00:00
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2013-10-07 01:00:07 +00:00
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// On success, GetCurrentDirectoryW returns the number of characters not
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// including the null-terminator.
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2010-11-29 22:28:51 +00:00
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cur_path.set_size(len);
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2013-08-16 17:53:28 +00:00
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return UTF16ToUTF8(cur_path.begin(), cur_path.size(), result);
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2010-11-29 22:28:51 +00:00
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}
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2010-12-03 05:42:11 +00:00
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error_code create_directory(const Twine &path, bool &existed) {
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SmallString<128> path_storage;
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SmallVector<wchar_t, 128> path_utf16;
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if (error_code ec = UTF8ToUTF16(path.toStringRef(path_storage),
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path_utf16))
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return ec;
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if (!::CreateDirectoryW(path_utf16.begin(), NULL)) {
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2010-12-04 18:45:32 +00:00
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error_code ec = windows_error(::GetLastError());
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if (ec == windows_error::already_exists)
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2010-12-03 05:42:11 +00:00
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existed = true;
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else
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return ec;
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} else
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existed = false;
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|
2012-02-09 19:24:12 +00:00
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return error_code::success();
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2010-12-03 05:42:11 +00:00
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}
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2010-12-03 05:58:41 +00:00
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error_code create_hard_link(const Twine &to, const Twine &from) {
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// Get arguments.
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SmallString<128> from_storage;
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SmallString<128> to_storage;
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StringRef f = from.toStringRef(from_storage);
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StringRef t = to.toStringRef(to_storage);
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// Convert to utf-16.
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SmallVector<wchar_t, 128> wide_from;
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SmallVector<wchar_t, 128> wide_to;
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if (error_code ec = UTF8ToUTF16(f, wide_from)) return ec;
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if (error_code ec = UTF8ToUTF16(t, wide_to)) return ec;
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if (!::CreateHardLinkW(wide_from.begin(), wide_to.begin(), NULL))
|
2010-12-04 18:45:32 +00:00
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return windows_error(::GetLastError());
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2010-12-03 05:58:41 +00:00
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2012-02-09 19:24:12 +00:00
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return error_code::success();
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2010-12-03 05:58:41 +00:00
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}
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2010-12-03 07:41:25 +00:00
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|
error_code create_symlink(const Twine &to, const Twine &from) {
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// Only do it if the function is available at runtime.
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|
|
if (!create_symbolic_link_api)
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return make_error_code(errc::function_not_supported);
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// Get arguments.
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SmallString<128> from_storage;
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|
|
SmallString<128> to_storage;
|
|
|
|
StringRef f = from.toStringRef(from_storage);
|
|
|
|
StringRef t = to.toStringRef(to_storage);
|
|
|
|
|
|
|
|
// Convert to utf-16.
|
|
|
|
SmallVector<wchar_t, 128> wide_from;
|
|
|
|
SmallVector<wchar_t, 128> wide_to;
|
|
|
|
if (error_code ec = UTF8ToUTF16(f, wide_from)) return ec;
|
|
|
|
if (error_code ec = UTF8ToUTF16(t, wide_to)) return ec;
|
|
|
|
|
2010-12-04 00:32:14 +00:00
|
|
|
if (!create_symbolic_link_api(wide_from.begin(), wide_to.begin(), 0))
|
2010-12-04 18:45:32 +00:00
|
|
|
return windows_error(::GetLastError());
|
2010-12-03 07:41:25 +00:00
|
|
|
|
2012-02-09 19:24:12 +00:00
|
|
|
return error_code::success();
|
2010-12-03 07:41:25 +00:00
|
|
|
}
|
|
|
|
|
2010-12-03 17:53:43 +00:00
|
|
|
error_code remove(const Twine &path, bool &existed) {
|
|
|
|
SmallString<128> path_storage;
|
|
|
|
SmallVector<wchar_t, 128> path_utf16;
|
|
|
|
|
2011-01-05 16:39:22 +00:00
|
|
|
file_status st;
|
2013-07-31 00:10:25 +00:00
|
|
|
error_code EC = status(path, st);
|
|
|
|
if (EC) {
|
|
|
|
if (EC == windows_error::file_not_found ||
|
|
|
|
EC == windows_error::path_not_found) {
|
|
|
|
existed = false;
|
|
|
|
return error_code::success();
|
|
|
|
}
|
|
|
|
return EC;
|
|
|
|
}
|
2011-01-05 16:39:22 +00:00
|
|
|
|
2010-12-03 17:53:43 +00:00
|
|
|
if (error_code ec = UTF8ToUTF16(path.toStringRef(path_storage),
|
|
|
|
path_utf16))
|
|
|
|
return ec;
|
|
|
|
|
2011-01-05 16:39:22 +00:00
|
|
|
if (st.type() == file_type::directory_file) {
|
|
|
|
if (!::RemoveDirectoryW(c_str(path_utf16))) {
|
|
|
|
error_code ec = windows_error(::GetLastError());
|
|
|
|
if (ec != windows_error::file_not_found)
|
|
|
|
return ec;
|
|
|
|
existed = false;
|
|
|
|
} else
|
|
|
|
existed = true;
|
|
|
|
} else {
|
|
|
|
if (!::DeleteFileW(c_str(path_utf16))) {
|
|
|
|
error_code ec = windows_error(::GetLastError());
|
|
|
|
if (ec != windows_error::file_not_found)
|
|
|
|
return ec;
|
|
|
|
existed = false;
|
|
|
|
} else
|
|
|
|
existed = true;
|
|
|
|
}
|
2010-12-03 17:53:43 +00:00
|
|
|
|
2012-02-09 19:24:12 +00:00
|
|
|
return error_code::success();
|
2010-12-03 17:53:43 +00:00
|
|
|
}
|
|
|
|
|
2010-12-03 17:53:55 +00:00
|
|
|
error_code rename(const Twine &from, const Twine &to) {
|
|
|
|
// Get arguments.
|
|
|
|
SmallString<128> from_storage;
|
|
|
|
SmallString<128> to_storage;
|
|
|
|
StringRef f = from.toStringRef(from_storage);
|
|
|
|
StringRef t = to.toStringRef(to_storage);
|
|
|
|
|
|
|
|
// Convert to utf-16.
|
|
|
|
SmallVector<wchar_t, 128> wide_from;
|
|
|
|
SmallVector<wchar_t, 128> wide_to;
|
|
|
|
if (error_code ec = UTF8ToUTF16(f, wide_from)) return ec;
|
|
|
|
if (error_code ec = UTF8ToUTF16(t, wide_to)) return ec;
|
|
|
|
|
2012-05-08 14:31:46 +00:00
|
|
|
error_code ec = error_code::success();
|
|
|
|
for (int i = 0; i < 2000; i++) {
|
|
|
|
if (::MoveFileExW(wide_from.begin(), wide_to.begin(),
|
|
|
|
MOVEFILE_COPY_ALLOWED | MOVEFILE_REPLACE_EXISTING))
|
|
|
|
return error_code::success();
|
|
|
|
ec = windows_error(::GetLastError());
|
|
|
|
if (ec != windows_error::access_denied)
|
|
|
|
break;
|
|
|
|
// Retry MoveFile() at ACCESS_DENIED.
|
|
|
|
// System scanners (eg. indexer) might open the source file when
|
|
|
|
// It is written and closed.
|
|
|
|
::Sleep(1);
|
|
|
|
}
|
2010-12-03 17:53:55 +00:00
|
|
|
|
2012-05-08 14:31:46 +00:00
|
|
|
return ec;
|
2010-12-03 17:53:55 +00:00
|
|
|
}
|
|
|
|
|
2010-12-03 17:54:07 +00:00
|
|
|
error_code resize_file(const Twine &path, uint64_t size) {
|
|
|
|
SmallString<128> path_storage;
|
|
|
|
SmallVector<wchar_t, 128> path_utf16;
|
|
|
|
|
|
|
|
if (error_code ec = UTF8ToUTF16(path.toStringRef(path_storage),
|
|
|
|
path_utf16))
|
|
|
|
return ec;
|
|
|
|
|
2012-12-03 22:09:31 +00:00
|
|
|
int fd = ::_wopen(path_utf16.begin(), O_BINARY | _O_RDWR, S_IWRITE);
|
2010-12-03 17:54:07 +00:00
|
|
|
if (fd == -1)
|
|
|
|
return error_code(errno, generic_category());
|
2010-12-03 18:48:56 +00:00
|
|
|
#ifdef HAVE__CHSIZE_S
|
2010-12-03 17:54:07 +00:00
|
|
|
errno_t error = ::_chsize_s(fd, size);
|
2010-12-03 18:48:56 +00:00
|
|
|
#else
|
|
|
|
errno_t error = ::_chsize(fd, size);
|
|
|
|
#endif
|
2010-12-03 17:54:07 +00:00
|
|
|
::close(fd);
|
|
|
|
return error_code(error, generic_category());
|
|
|
|
}
|
|
|
|
|
2010-12-03 01:21:28 +00:00
|
|
|
error_code exists(const Twine &path, bool &result) {
|
|
|
|
SmallString<128> path_storage;
|
|
|
|
SmallVector<wchar_t, 128> path_utf16;
|
|
|
|
|
|
|
|
if (error_code ec = UTF8ToUTF16(path.toStringRef(path_storage),
|
|
|
|
path_utf16))
|
|
|
|
return ec;
|
|
|
|
|
|
|
|
DWORD attributes = ::GetFileAttributesW(path_utf16.begin());
|
|
|
|
|
|
|
|
if (attributes == INVALID_FILE_ATTRIBUTES) {
|
|
|
|
// See if the file didn't actually exist.
|
|
|
|
error_code ec = make_error_code(windows_error(::GetLastError()));
|
2010-12-04 18:45:32 +00:00
|
|
|
if (ec != windows_error::file_not_found &&
|
|
|
|
ec != windows_error::path_not_found)
|
2010-12-03 01:21:28 +00:00
|
|
|
return ec;
|
|
|
|
result = false;
|
|
|
|
} else
|
|
|
|
result = true;
|
2012-02-09 19:24:12 +00:00
|
|
|
return error_code::success();
|
2010-12-03 18:49:13 +00:00
|
|
|
}
|
|
|
|
|
2013-06-18 20:56:38 +00:00
|
|
|
bool can_write(const Twine &Path) {
|
|
|
|
// FIXME: take security attributes into account.
|
|
|
|
SmallString<128> PathStorage;
|
|
|
|
SmallVector<wchar_t, 128> PathUtf16;
|
|
|
|
|
|
|
|
if (UTF8ToUTF16(Path.toStringRef(PathStorage), PathUtf16))
|
|
|
|
return false;
|
|
|
|
|
|
|
|
DWORD Attr = ::GetFileAttributesW(PathUtf16.begin());
|
|
|
|
return (Attr != INVALID_FILE_ATTRIBUTES) && !(Attr & FILE_ATTRIBUTE_READONLY);
|
|
|
|
}
|
|
|
|
|
2013-06-14 19:38:45 +00:00
|
|
|
bool can_execute(const Twine &Path) {
|
|
|
|
SmallString<128> PathStorage;
|
|
|
|
SmallVector<wchar_t, 128> PathUtf16;
|
|
|
|
|
|
|
|
if (UTF8ToUTF16(Path.toStringRef(PathStorage), PathUtf16))
|
|
|
|
return false;
|
|
|
|
|
|
|
|
DWORD Attr = ::GetFileAttributesW(PathUtf16.begin());
|
|
|
|
return Attr != INVALID_FILE_ATTRIBUTES;
|
|
|
|
}
|
|
|
|
|
2011-12-12 06:04:28 +00:00
|
|
|
bool equivalent(file_status A, file_status B) {
|
|
|
|
assert(status_known(A) && status_known(B));
|
|
|
|
return A.FileIndexHigh == B.FileIndexHigh &&
|
|
|
|
A.FileIndexLow == B.FileIndexLow &&
|
|
|
|
A.FileSizeHigh == B.FileSizeHigh &&
|
|
|
|
A.FileSizeLow == B.FileSizeLow &&
|
|
|
|
A.LastWriteTimeHigh == B.LastWriteTimeHigh &&
|
|
|
|
A.LastWriteTimeLow == B.LastWriteTimeLow &&
|
|
|
|
A.VolumeSerialNumber == B.VolumeSerialNumber;
|
|
|
|
}
|
2010-12-03 18:49:13 +00:00
|
|
|
|
2011-12-12 06:04:28 +00:00
|
|
|
error_code equivalent(const Twine &A, const Twine &B, bool &result) {
|
|
|
|
file_status fsA, fsB;
|
|
|
|
if (error_code ec = status(A, fsA)) return ec;
|
|
|
|
if (error_code ec = status(B, fsB)) return ec;
|
|
|
|
result = equivalent(fsA, fsB);
|
2012-02-09 19:24:12 +00:00
|
|
|
return error_code::success();
|
2010-12-04 00:31:48 +00:00
|
|
|
}
|
|
|
|
|
2011-08-20 21:36:38 +00:00
|
|
|
static bool isReservedName(StringRef path) {
|
|
|
|
// This list of reserved names comes from MSDN, at:
|
|
|
|
// http://msdn.microsoft.com/en-us/library/aa365247%28v=vs.85%29.aspx
|
|
|
|
static const char *sReservedNames[] = { "nul", "con", "prn", "aux",
|
|
|
|
"com1", "com2", "com3", "com4", "com5", "com6",
|
|
|
|
"com7", "com8", "com9", "lpt1", "lpt2", "lpt3",
|
|
|
|
"lpt4", "lpt5", "lpt6", "lpt7", "lpt8", "lpt9" };
|
|
|
|
|
|
|
|
// First, check to see if this is a device namespace, which always
|
|
|
|
// starts with \\.\, since device namespaces are not legal file paths.
|
|
|
|
if (path.startswith("\\\\.\\"))
|
|
|
|
return true;
|
|
|
|
|
|
|
|
// Then compare against the list of ancient reserved names
|
2013-07-15 04:27:47 +00:00
|
|
|
for (size_t i = 0; i < array_lengthof(sReservedNames); ++i) {
|
2011-08-20 21:36:38 +00:00
|
|
|
if (path.equals_lower(sReservedNames[i]))
|
|
|
|
return true;
|
|
|
|
}
|
|
|
|
|
|
|
|
// The path isn't what we consider reserved.
|
|
|
|
return false;
|
|
|
|
}
|
|
|
|
|
2013-07-16 03:20:13 +00:00
|
|
|
static error_code getStatus(HANDLE FileHandle, file_status &Result) {
|
|
|
|
if (FileHandle == INVALID_HANDLE_VALUE)
|
|
|
|
goto handle_status_error;
|
|
|
|
|
2013-07-18 17:00:54 +00:00
|
|
|
switch (::GetFileType(FileHandle)) {
|
|
|
|
default:
|
2013-07-18 18:42:52 +00:00
|
|
|
llvm_unreachable("Don't know anything about this file type");
|
|
|
|
case FILE_TYPE_UNKNOWN: {
|
|
|
|
DWORD Err = ::GetLastError();
|
|
|
|
if (Err != NO_ERROR)
|
|
|
|
return windows_error(Err);
|
|
|
|
Result = file_status(file_type::type_unknown);
|
|
|
|
return error_code::success();
|
|
|
|
}
|
2013-07-18 17:00:54 +00:00
|
|
|
case FILE_TYPE_DISK:
|
|
|
|
break;
|
|
|
|
case FILE_TYPE_CHAR:
|
|
|
|
Result = file_status(file_type::character_file);
|
|
|
|
return error_code::success();
|
|
|
|
case FILE_TYPE_PIPE:
|
|
|
|
Result = file_status(file_type::fifo_file);
|
|
|
|
return error_code::success();
|
|
|
|
}
|
|
|
|
|
2013-07-16 03:20:13 +00:00
|
|
|
BY_HANDLE_FILE_INFORMATION Info;
|
|
|
|
if (!::GetFileInformationByHandle(FileHandle, &Info))
|
|
|
|
goto handle_status_error;
|
|
|
|
|
2013-07-30 20:25:53 +00:00
|
|
|
{
|
|
|
|
file_type Type = (Info.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY)
|
|
|
|
? file_type::directory_file
|
|
|
|
: file_type::regular_file;
|
|
|
|
Result =
|
|
|
|
file_status(Type, Info.ftLastWriteTime.dwHighDateTime,
|
|
|
|
Info.ftLastWriteTime.dwLowDateTime,
|
|
|
|
Info.dwVolumeSerialNumber, Info.nFileSizeHigh,
|
|
|
|
Info.nFileSizeLow, Info.nFileIndexHigh, Info.nFileIndexLow);
|
|
|
|
return error_code::success();
|
|
|
|
}
|
2013-07-16 03:20:13 +00:00
|
|
|
|
|
|
|
handle_status_error:
|
|
|
|
error_code EC = windows_error(::GetLastError());
|
|
|
|
if (EC == windows_error::file_not_found ||
|
|
|
|
EC == windows_error::path_not_found)
|
|
|
|
Result = file_status(file_type::file_not_found);
|
|
|
|
else if (EC == windows_error::sharing_violation)
|
|
|
|
Result = file_status(file_type::type_unknown);
|
2013-07-31 00:10:25 +00:00
|
|
|
else
|
2013-07-16 03:20:13 +00:00
|
|
|
Result = file_status(file_type::status_error);
|
2013-07-31 00:10:25 +00:00
|
|
|
return EC;
|
2013-07-16 03:20:13 +00:00
|
|
|
}
|
|
|
|
|
2010-12-04 00:32:40 +00:00
|
|
|
error_code status(const Twine &path, file_status &result) {
|
|
|
|
SmallString<128> path_storage;
|
|
|
|
SmallVector<wchar_t, 128> path_utf16;
|
|
|
|
|
2011-03-16 02:53:32 +00:00
|
|
|
StringRef path8 = path.toStringRef(path_storage);
|
2011-08-20 21:36:38 +00:00
|
|
|
if (isReservedName(path8)) {
|
2011-03-16 02:53:32 +00:00
|
|
|
result = file_status(file_type::character_file);
|
2012-02-09 19:24:12 +00:00
|
|
|
return error_code::success();
|
2011-03-16 02:53:32 +00:00
|
|
|
}
|
|
|
|
|
2011-12-12 06:04:28 +00:00
|
|
|
if (error_code ec = UTF8ToUTF16(path8, path_utf16))
|
2010-12-04 00:32:40 +00:00
|
|
|
return ec;
|
|
|
|
|
|
|
|
DWORD attr = ::GetFileAttributesW(path_utf16.begin());
|
|
|
|
if (attr == INVALID_FILE_ATTRIBUTES)
|
2013-07-16 03:20:13 +00:00
|
|
|
return getStatus(INVALID_HANDLE_VALUE, result);
|
2010-12-04 00:32:40 +00:00
|
|
|
|
|
|
|
// Handle reparse points.
|
|
|
|
if (attr & FILE_ATTRIBUTE_REPARSE_POINT) {
|
2011-12-12 06:03:33 +00:00
|
|
|
ScopedFileHandle h(
|
2010-12-04 00:32:40 +00:00
|
|
|
::CreateFileW(path_utf16.begin(),
|
|
|
|
0, // Attributes only.
|
|
|
|
FILE_SHARE_DELETE | FILE_SHARE_READ | FILE_SHARE_WRITE,
|
|
|
|
NULL,
|
|
|
|
OPEN_EXISTING,
|
|
|
|
FILE_FLAG_BACKUP_SEMANTICS,
|
|
|
|
0));
|
2011-12-12 06:03:33 +00:00
|
|
|
if (!h)
|
2013-07-16 03:20:13 +00:00
|
|
|
return getStatus(INVALID_HANDLE_VALUE, result);
|
2010-12-04 00:32:40 +00:00
|
|
|
}
|
|
|
|
|
2013-07-30 20:25:53 +00:00
|
|
|
ScopedFileHandle h(
|
|
|
|
::CreateFileW(path_utf16.begin(), 0, // Attributes only.
|
2011-12-12 06:04:28 +00:00
|
|
|
FILE_SHARE_DELETE | FILE_SHARE_READ | FILE_SHARE_WRITE,
|
2013-07-30 20:25:53 +00:00
|
|
|
NULL, OPEN_EXISTING, FILE_FLAG_BACKUP_SEMANTICS, 0));
|
2011-12-12 06:04:28 +00:00
|
|
|
if (!h)
|
2013-07-16 03:20:13 +00:00
|
|
|
return getStatus(INVALID_HANDLE_VALUE, result);
|
2010-12-04 00:32:40 +00:00
|
|
|
|
2013-07-16 03:20:13 +00:00
|
|
|
return getStatus(h, result);
|
|
|
|
}
|
2010-12-04 00:32:40 +00:00
|
|
|
|
2013-07-16 03:20:13 +00:00
|
|
|
error_code status(int FD, file_status &Result) {
|
|
|
|
HANDLE FileHandle = reinterpret_cast<HANDLE>(_get_osfhandle(FD));
|
|
|
|
return getStatus(FileHandle, Result);
|
2010-12-04 00:32:40 +00:00
|
|
|
}
|
|
|
|
|
2013-06-20 20:56:14 +00:00
|
|
|
error_code setLastModificationAndAccessTime(int FD, TimeValue Time) {
|
|
|
|
ULARGE_INTEGER UI;
|
|
|
|
UI.QuadPart = Time.toWin32Time();
|
|
|
|
FILETIME FT;
|
|
|
|
FT.dwLowDateTime = UI.LowPart;
|
|
|
|
FT.dwHighDateTime = UI.HighPart;
|
|
|
|
HANDLE FileHandle = reinterpret_cast<HANDLE>(_get_osfhandle(FD));
|
|
|
|
if (!SetFileTime(FileHandle, NULL, &FT, &FT))
|
|
|
|
return windows_error(::GetLastError());
|
|
|
|
return error_code::success();
|
|
|
|
}
|
2012-06-20 00:28:54 +00:00
|
|
|
|
2011-01-15 18:52:33 +00:00
|
|
|
error_code get_magic(const Twine &path, uint32_t len,
|
|
|
|
SmallVectorImpl<char> &result) {
|
|
|
|
SmallString<128> path_storage;
|
|
|
|
SmallVector<wchar_t, 128> path_utf16;
|
|
|
|
result.set_size(0);
|
|
|
|
|
|
|
|
// Convert path to UTF-16.
|
|
|
|
if (error_code ec = UTF8ToUTF16(path.toStringRef(path_storage),
|
|
|
|
path_utf16))
|
|
|
|
return ec;
|
|
|
|
|
|
|
|
// Open file.
|
|
|
|
HANDLE file = ::CreateFileW(c_str(path_utf16),
|
|
|
|
GENERIC_READ,
|
|
|
|
FILE_SHARE_READ,
|
|
|
|
NULL,
|
|
|
|
OPEN_EXISTING,
|
|
|
|
FILE_ATTRIBUTE_READONLY,
|
|
|
|
NULL);
|
|
|
|
if (file == INVALID_HANDLE_VALUE)
|
|
|
|
return windows_error(::GetLastError());
|
|
|
|
|
|
|
|
// Allocate buffer.
|
|
|
|
result.reserve(len);
|
|
|
|
|
|
|
|
// Get magic!
|
|
|
|
DWORD bytes_read = 0;
|
|
|
|
BOOL read_success = ::ReadFile(file, result.data(), len, &bytes_read, NULL);
|
|
|
|
error_code ec = windows_error(::GetLastError());
|
|
|
|
::CloseHandle(file);
|
|
|
|
if (!read_success || (bytes_read != len)) {
|
|
|
|
// Set result size to the number of bytes read if it's valid.
|
2011-03-07 00:12:53 +00:00
|
|
|
if (bytes_read <= len)
|
2011-01-15 18:52:33 +00:00
|
|
|
result.set_size(bytes_read);
|
|
|
|
// ERROR_HANDLE_EOF is mapped to errc::value_too_large.
|
|
|
|
return ec;
|
|
|
|
}
|
|
|
|
|
|
|
|
result.set_size(len);
|
2012-02-09 19:24:12 +00:00
|
|
|
return error_code::success();
|
2011-01-15 18:52:33 +00:00
|
|
|
}
|
|
|
|
|
2013-03-14 00:20:10 +00:00
|
|
|
error_code mapped_file_region::init(int FD, bool CloseFD, uint64_t Offset) {
|
2012-08-15 19:05:47 +00:00
|
|
|
FileDescriptor = FD;
|
|
|
|
// Make sure that the requested size fits within SIZE_T.
|
|
|
|
if (Size > std::numeric_limits<SIZE_T>::max()) {
|
2013-03-15 19:25:47 +00:00
|
|
|
if (FileDescriptor) {
|
2013-03-14 00:20:10 +00:00
|
|
|
if (CloseFD)
|
|
|
|
_close(FileDescriptor);
|
2013-03-15 19:25:47 +00:00
|
|
|
} else
|
2012-08-15 19:05:47 +00:00
|
|
|
::CloseHandle(FileHandle);
|
|
|
|
return make_error_code(errc::invalid_argument);
|
|
|
|
}
|
|
|
|
|
|
|
|
DWORD flprotect;
|
|
|
|
switch (Mode) {
|
|
|
|
case readonly: flprotect = PAGE_READONLY; break;
|
|
|
|
case readwrite: flprotect = PAGE_READWRITE; break;
|
|
|
|
case priv: flprotect = PAGE_WRITECOPY; break;
|
|
|
|
}
|
|
|
|
|
2013-10-07 09:52:36 +00:00
|
|
|
FileMappingHandle =
|
|
|
|
::CreateFileMappingW(FileHandle, 0, flprotect,
|
|
|
|
(Offset + Size) >> 32,
|
|
|
|
(Offset + Size) & 0xffffffff,
|
|
|
|
0);
|
2012-08-15 19:05:47 +00:00
|
|
|
if (FileMappingHandle == NULL) {
|
|
|
|
error_code ec = windows_error(GetLastError());
|
2013-03-15 19:25:47 +00:00
|
|
|
if (FileDescriptor) {
|
2013-03-14 00:20:10 +00:00
|
|
|
if (CloseFD)
|
|
|
|
_close(FileDescriptor);
|
2013-03-15 19:25:47 +00:00
|
|
|
} else
|
2012-08-15 19:05:47 +00:00
|
|
|
::CloseHandle(FileHandle);
|
|
|
|
return ec;
|
|
|
|
}
|
|
|
|
|
|
|
|
DWORD dwDesiredAccess;
|
|
|
|
switch (Mode) {
|
|
|
|
case readonly: dwDesiredAccess = FILE_MAP_READ; break;
|
|
|
|
case readwrite: dwDesiredAccess = FILE_MAP_WRITE; break;
|
|
|
|
case priv: dwDesiredAccess = FILE_MAP_COPY; break;
|
|
|
|
}
|
|
|
|
Mapping = ::MapViewOfFile(FileMappingHandle,
|
|
|
|
dwDesiredAccess,
|
|
|
|
Offset >> 32,
|
|
|
|
Offset & 0xffffffff,
|
|
|
|
Size);
|
|
|
|
if (Mapping == NULL) {
|
|
|
|
error_code ec = windows_error(GetLastError());
|
|
|
|
::CloseHandle(FileMappingHandle);
|
2013-03-15 19:25:47 +00:00
|
|
|
if (FileDescriptor) {
|
2013-03-14 00:20:10 +00:00
|
|
|
if (CloseFD)
|
|
|
|
_close(FileDescriptor);
|
2013-03-15 19:25:47 +00:00
|
|
|
} else
|
2012-08-15 19:05:47 +00:00
|
|
|
::CloseHandle(FileHandle);
|
|
|
|
return ec;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (Size == 0) {
|
|
|
|
MEMORY_BASIC_INFORMATION mbi;
|
|
|
|
SIZE_T Result = VirtualQuery(Mapping, &mbi, sizeof(mbi));
|
|
|
|
if (Result == 0) {
|
|
|
|
error_code ec = windows_error(GetLastError());
|
|
|
|
::UnmapViewOfFile(Mapping);
|
|
|
|
::CloseHandle(FileMappingHandle);
|
2013-03-15 19:25:47 +00:00
|
|
|
if (FileDescriptor) {
|
2013-03-14 00:20:10 +00:00
|
|
|
if (CloseFD)
|
|
|
|
_close(FileDescriptor);
|
2013-03-15 19:25:47 +00:00
|
|
|
} else
|
2012-08-15 19:05:47 +00:00
|
|
|
::CloseHandle(FileHandle);
|
|
|
|
return ec;
|
|
|
|
}
|
|
|
|
Size = mbi.RegionSize;
|
|
|
|
}
|
2013-03-14 00:20:10 +00:00
|
|
|
|
|
|
|
// Close all the handles except for the view. It will keep the other handles
|
|
|
|
// alive.
|
|
|
|
::CloseHandle(FileMappingHandle);
|
2013-03-15 19:25:47 +00:00
|
|
|
if (FileDescriptor) {
|
2013-03-14 00:20:10 +00:00
|
|
|
if (CloseFD)
|
|
|
|
_close(FileDescriptor); // Also closes FileHandle.
|
2013-03-15 19:25:47 +00:00
|
|
|
} else
|
2013-03-14 00:20:10 +00:00
|
|
|
::CloseHandle(FileHandle);
|
2012-08-15 19:05:47 +00:00
|
|
|
return error_code::success();
|
|
|
|
}
|
|
|
|
|
|
|
|
mapped_file_region::mapped_file_region(const Twine &path,
|
|
|
|
mapmode mode,
|
|
|
|
uint64_t length,
|
|
|
|
uint64_t offset,
|
2013-08-22 15:14:45 +00:00
|
|
|
error_code &ec)
|
2012-08-15 19:05:47 +00:00
|
|
|
: Mode(mode)
|
|
|
|
, Size(length)
|
|
|
|
, Mapping()
|
|
|
|
, FileDescriptor()
|
|
|
|
, FileHandle(INVALID_HANDLE_VALUE)
|
|
|
|
, FileMappingHandle() {
|
|
|
|
SmallString<128> path_storage;
|
|
|
|
SmallVector<wchar_t, 128> path_utf16;
|
|
|
|
|
|
|
|
// Convert path to UTF-16.
|
2012-09-25 05:24:16 +00:00
|
|
|
if ((ec = UTF8ToUTF16(path.toStringRef(path_storage), path_utf16)))
|
2012-08-15 19:05:47 +00:00
|
|
|
return;
|
|
|
|
|
|
|
|
// Get file handle for creating a file mapping.
|
|
|
|
FileHandle = ::CreateFileW(c_str(path_utf16),
|
|
|
|
Mode == readonly ? GENERIC_READ
|
|
|
|
: GENERIC_READ | GENERIC_WRITE,
|
|
|
|
Mode == readonly ? FILE_SHARE_READ
|
|
|
|
: 0,
|
|
|
|
0,
|
|
|
|
Mode == readonly ? OPEN_EXISTING
|
|
|
|
: OPEN_ALWAYS,
|
|
|
|
Mode == readonly ? FILE_ATTRIBUTE_READONLY
|
|
|
|
: FILE_ATTRIBUTE_NORMAL,
|
|
|
|
0);
|
|
|
|
if (FileHandle == INVALID_HANDLE_VALUE) {
|
|
|
|
ec = windows_error(::GetLastError());
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
FileDescriptor = 0;
|
2013-03-14 00:20:10 +00:00
|
|
|
ec = init(FileDescriptor, true, offset);
|
2012-08-15 19:05:47 +00:00
|
|
|
if (ec) {
|
|
|
|
Mapping = FileMappingHandle = 0;
|
|
|
|
FileHandle = INVALID_HANDLE_VALUE;
|
|
|
|
FileDescriptor = 0;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
mapped_file_region::mapped_file_region(int fd,
|
2013-03-14 00:20:10 +00:00
|
|
|
bool closefd,
|
2012-08-15 19:05:47 +00:00
|
|
|
mapmode mode,
|
|
|
|
uint64_t length,
|
|
|
|
uint64_t offset,
|
|
|
|
error_code &ec)
|
|
|
|
: Mode(mode)
|
|
|
|
, Size(length)
|
|
|
|
, Mapping()
|
|
|
|
, FileDescriptor(fd)
|
|
|
|
, FileHandle(INVALID_HANDLE_VALUE)
|
|
|
|
, FileMappingHandle() {
|
|
|
|
FileHandle = reinterpret_cast<HANDLE>(_get_osfhandle(fd));
|
|
|
|
if (FileHandle == INVALID_HANDLE_VALUE) {
|
2013-03-14 00:20:10 +00:00
|
|
|
if (closefd)
|
|
|
|
_close(FileDescriptor);
|
2012-08-15 19:05:47 +00:00
|
|
|
FileDescriptor = 0;
|
|
|
|
ec = make_error_code(errc::bad_file_descriptor);
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
2013-03-14 00:20:10 +00:00
|
|
|
ec = init(FileDescriptor, closefd, offset);
|
2012-08-15 19:05:47 +00:00
|
|
|
if (ec) {
|
|
|
|
Mapping = FileMappingHandle = 0;
|
|
|
|
FileHandle = INVALID_HANDLE_VALUE;
|
|
|
|
FileDescriptor = 0;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
mapped_file_region::~mapped_file_region() {
|
|
|
|
if (Mapping)
|
|
|
|
::UnmapViewOfFile(Mapping);
|
|
|
|
}
|
|
|
|
|
2012-11-30 11:45:22 +00:00
|
|
|
#if LLVM_HAS_RVALUE_REFERENCES
|
2012-08-15 19:05:47 +00:00
|
|
|
mapped_file_region::mapped_file_region(mapped_file_region &&other)
|
|
|
|
: Mode(other.Mode)
|
|
|
|
, Size(other.Size)
|
|
|
|
, Mapping(other.Mapping)
|
|
|
|
, FileDescriptor(other.FileDescriptor)
|
|
|
|
, FileHandle(other.FileHandle)
|
|
|
|
, FileMappingHandle(other.FileMappingHandle) {
|
|
|
|
other.Mapping = other.FileMappingHandle = 0;
|
|
|
|
other.FileHandle = INVALID_HANDLE_VALUE;
|
|
|
|
other.FileDescriptor = 0;
|
|
|
|
}
|
|
|
|
#endif
|
|
|
|
|
|
|
|
mapped_file_region::mapmode mapped_file_region::flags() const {
|
|
|
|
assert(Mapping && "Mapping failed but used anyway!");
|
|
|
|
return Mode;
|
|
|
|
}
|
|
|
|
|
|
|
|
uint64_t mapped_file_region::size() const {
|
|
|
|
assert(Mapping && "Mapping failed but used anyway!");
|
|
|
|
return Size;
|
|
|
|
}
|
|
|
|
|
|
|
|
char *mapped_file_region::data() const {
|
2013-12-05 05:44:44 +00:00
|
|
|
assert(Mode != readonly && "Cannot get non-const data for readonly mapping!");
|
2012-08-15 19:05:47 +00:00
|
|
|
assert(Mapping && "Mapping failed but used anyway!");
|
|
|
|
return reinterpret_cast<char*>(Mapping);
|
|
|
|
}
|
|
|
|
|
|
|
|
const char *mapped_file_region::const_data() const {
|
|
|
|
assert(Mapping && "Mapping failed but used anyway!");
|
|
|
|
return reinterpret_cast<const char*>(Mapping);
|
|
|
|
}
|
|
|
|
|
|
|
|
int mapped_file_region::alignment() {
|
|
|
|
SYSTEM_INFO SysInfo;
|
|
|
|
::GetSystemInfo(&SysInfo);
|
|
|
|
return SysInfo.dwAllocationGranularity;
|
|
|
|
}
|
|
|
|
|
2011-12-08 22:50:09 +00:00
|
|
|
error_code detail::directory_iterator_construct(detail::DirIterState &it,
|
|
|
|
StringRef path){
|
2010-12-06 04:28:42 +00:00
|
|
|
SmallVector<wchar_t, 128> path_utf16;
|
|
|
|
|
|
|
|
if (error_code ec = UTF8ToUTF16(path,
|
|
|
|
path_utf16))
|
|
|
|
return ec;
|
|
|
|
|
|
|
|
// Convert path to the format that Windows is happy with.
|
|
|
|
if (path_utf16.size() > 0 &&
|
|
|
|
!is_separator(path_utf16[path.size() - 1]) &&
|
|
|
|
path_utf16[path.size() - 1] != L':') {
|
|
|
|
path_utf16.push_back(L'\\');
|
|
|
|
path_utf16.push_back(L'*');
|
|
|
|
} else {
|
|
|
|
path_utf16.push_back(L'*');
|
|
|
|
}
|
|
|
|
|
|
|
|
// Get the first directory entry.
|
|
|
|
WIN32_FIND_DATAW FirstFind;
|
2010-12-09 17:37:18 +00:00
|
|
|
ScopedFindHandle FindHandle(::FindFirstFileW(c_str(path_utf16), &FirstFind));
|
2010-12-06 04:28:42 +00:00
|
|
|
if (!FindHandle)
|
|
|
|
return windows_error(::GetLastError());
|
|
|
|
|
2011-01-05 16:39:30 +00:00
|
|
|
size_t FilenameLen = ::wcslen(FirstFind.cFileName);
|
|
|
|
while ((FilenameLen == 1 && FirstFind.cFileName[0] == L'.') ||
|
|
|
|
(FilenameLen == 2 && FirstFind.cFileName[0] == L'.' &&
|
|
|
|
FirstFind.cFileName[1] == L'.'))
|
|
|
|
if (!::FindNextFileW(FindHandle, &FirstFind)) {
|
|
|
|
error_code ec = windows_error(::GetLastError());
|
|
|
|
// Check for end.
|
|
|
|
if (ec == windows_error::no_more_files)
|
2011-12-08 22:50:09 +00:00
|
|
|
return detail::directory_iterator_destruct(it);
|
2011-01-05 16:39:30 +00:00
|
|
|
return ec;
|
|
|
|
} else
|
|
|
|
FilenameLen = ::wcslen(FirstFind.cFileName);
|
|
|
|
|
2010-12-06 04:28:42 +00:00
|
|
|
// Construct the current directory entry.
|
2011-01-05 16:39:30 +00:00
|
|
|
SmallString<128> directory_entry_name_utf8;
|
2010-12-06 04:28:42 +00:00
|
|
|
if (error_code ec = UTF16ToUTF8(FirstFind.cFileName,
|
|
|
|
::wcslen(FirstFind.cFileName),
|
2011-01-05 16:39:30 +00:00
|
|
|
directory_entry_name_utf8))
|
2010-12-06 04:28:42 +00:00
|
|
|
return ec;
|
|
|
|
|
|
|
|
it.IterationHandle = intptr_t(FindHandle.take());
|
2011-01-05 16:39:30 +00:00
|
|
|
SmallString<128> directory_entry_path(path);
|
|
|
|
path::append(directory_entry_path, directory_entry_name_utf8.str());
|
|
|
|
it.CurrentEntry = directory_entry(directory_entry_path.str());
|
2010-12-06 04:28:42 +00:00
|
|
|
|
2012-02-09 19:24:12 +00:00
|
|
|
return error_code::success();
|
2010-12-06 04:28:42 +00:00
|
|
|
}
|
|
|
|
|
2011-12-08 22:50:09 +00:00
|
|
|
error_code detail::directory_iterator_destruct(detail::DirIterState &it) {
|
2010-12-06 04:28:42 +00:00
|
|
|
if (it.IterationHandle != 0)
|
|
|
|
// Closes the handle if it's valid.
|
|
|
|
ScopedFindHandle close(HANDLE(it.IterationHandle));
|
|
|
|
it.IterationHandle = 0;
|
|
|
|
it.CurrentEntry = directory_entry();
|
2012-02-09 19:24:12 +00:00
|
|
|
return error_code::success();
|
2010-12-06 04:28:42 +00:00
|
|
|
}
|
|
|
|
|
2011-12-08 22:50:09 +00:00
|
|
|
error_code detail::directory_iterator_increment(detail::DirIterState &it) {
|
2010-12-06 04:28:42 +00:00
|
|
|
WIN32_FIND_DATAW FindData;
|
|
|
|
if (!::FindNextFileW(HANDLE(it.IterationHandle), &FindData)) {
|
|
|
|
error_code ec = windows_error(::GetLastError());
|
|
|
|
// Check for end.
|
|
|
|
if (ec == windows_error::no_more_files)
|
2011-12-08 22:50:09 +00:00
|
|
|
return detail::directory_iterator_destruct(it);
|
2010-12-06 04:28:42 +00:00
|
|
|
return ec;
|
|
|
|
}
|
|
|
|
|
2011-01-05 16:39:30 +00:00
|
|
|
size_t FilenameLen = ::wcslen(FindData.cFileName);
|
|
|
|
if ((FilenameLen == 1 && FindData.cFileName[0] == L'.') ||
|
|
|
|
(FilenameLen == 2 && FindData.cFileName[0] == L'.' &&
|
|
|
|
FindData.cFileName[1] == L'.'))
|
|
|
|
return directory_iterator_increment(it);
|
|
|
|
|
2010-12-06 04:28:42 +00:00
|
|
|
SmallString<128> directory_entry_path_utf8;
|
|
|
|
if (error_code ec = UTF16ToUTF8(FindData.cFileName,
|
|
|
|
::wcslen(FindData.cFileName),
|
|
|
|
directory_entry_path_utf8))
|
|
|
|
return ec;
|
|
|
|
|
|
|
|
it.CurrentEntry.replace_filename(Twine(directory_entry_path_utf8));
|
2012-02-09 19:24:12 +00:00
|
|
|
return error_code::success();
|
2010-12-06 04:28:42 +00:00
|
|
|
}
|
|
|
|
|
2013-08-22 15:14:45 +00:00
|
|
|
error_code map_file_pages(const Twine &path, off_t file_offset, size_t size,
|
2012-06-20 00:28:54 +00:00
|
|
|
bool map_writable, void *&result) {
|
|
|
|
assert(0 && "NOT IMPLEMENTED");
|
2012-06-20 04:08:49 +00:00
|
|
|
return windows_error::invalid_function;
|
2012-06-20 00:28:54 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
error_code unmap_file_pages(void *base, size_t size) {
|
|
|
|
assert(0 && "NOT IMPLEMENTED");
|
2012-06-20 04:08:49 +00:00
|
|
|
return windows_error::invalid_function;
|
2012-06-20 00:28:54 +00:00
|
|
|
}
|
|
|
|
|
2013-07-17 14:58:25 +00:00
|
|
|
error_code openFileForRead(const Twine &Name, int &ResultFD) {
|
|
|
|
SmallString<128> PathStorage;
|
|
|
|
SmallVector<wchar_t, 128> PathUTF16;
|
|
|
|
|
|
|
|
if (error_code EC = UTF8ToUTF16(Name.toStringRef(PathStorage),
|
|
|
|
PathUTF16))
|
|
|
|
return EC;
|
2012-06-20 00:28:54 +00:00
|
|
|
|
2013-07-17 14:58:25 +00:00
|
|
|
HANDLE H = ::CreateFileW(PathUTF16.begin(), GENERIC_READ,
|
2013-07-17 19:44:07 +00:00
|
|
|
FILE_SHARE_READ | FILE_SHARE_WRITE, NULL,
|
2013-07-17 14:58:25 +00:00
|
|
|
OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
|
|
|
|
if (H == INVALID_HANDLE_VALUE) {
|
|
|
|
error_code EC = windows_error(::GetLastError());
|
2013-07-17 19:58:28 +00:00
|
|
|
// Provide a better error message when trying to open directories.
|
2013-07-17 14:58:25 +00:00
|
|
|
// This only runs if we failed to open the file, so there is probably
|
|
|
|
// no performances issues.
|
|
|
|
if (EC != windows_error::access_denied)
|
|
|
|
return EC;
|
|
|
|
if (is_directory(Name))
|
|
|
|
return error_code(errc::is_a_directory, posix_category());
|
|
|
|
return EC;
|
|
|
|
}
|
|
|
|
|
|
|
|
int FD = ::_open_osfhandle(intptr_t(H), 0);
|
|
|
|
if (FD == -1) {
|
|
|
|
::CloseHandle(H);
|
|
|
|
return windows_error::invalid_handle;
|
|
|
|
}
|
|
|
|
|
|
|
|
ResultFD = FD;
|
|
|
|
return error_code::success();
|
|
|
|
}
|
2012-06-20 00:28:54 +00:00
|
|
|
|
2013-07-19 15:02:03 +00:00
|
|
|
error_code openFileForWrite(const Twine &Name, int &ResultFD,
|
|
|
|
sys::fs::OpenFlags Flags, unsigned Mode) {
|
|
|
|
// Verify that we don't have both "append" and "excl".
|
|
|
|
assert((!(Flags & sys::fs::F_Excl) || !(Flags & sys::fs::F_Append)) &&
|
|
|
|
"Cannot specify both 'excl' and 'append' file creation flags!");
|
|
|
|
|
|
|
|
SmallString<128> PathStorage;
|
|
|
|
SmallVector<wchar_t, 128> PathUTF16;
|
|
|
|
|
|
|
|
if (error_code EC = UTF8ToUTF16(Name.toStringRef(PathStorage),
|
|
|
|
PathUTF16))
|
|
|
|
return EC;
|
|
|
|
|
|
|
|
DWORD CreationDisposition;
|
|
|
|
if (Flags & F_Excl)
|
|
|
|
CreationDisposition = CREATE_NEW;
|
2013-08-22 15:14:45 +00:00
|
|
|
else if (Flags & F_Append)
|
2013-07-19 15:02:03 +00:00
|
|
|
CreationDisposition = OPEN_ALWAYS;
|
|
|
|
else
|
|
|
|
CreationDisposition = CREATE_ALWAYS;
|
|
|
|
|
|
|
|
HANDLE H = ::CreateFileW(PathUTF16.begin(), GENERIC_WRITE,
|
|
|
|
FILE_SHARE_READ | FILE_SHARE_WRITE, NULL,
|
|
|
|
CreationDisposition, FILE_ATTRIBUTE_NORMAL, NULL);
|
|
|
|
|
|
|
|
if (H == INVALID_HANDLE_VALUE) {
|
|
|
|
error_code EC = windows_error(::GetLastError());
|
|
|
|
// Provide a better error message when trying to open directories.
|
|
|
|
// This only runs if we failed to open the file, so there is probably
|
|
|
|
// no performances issues.
|
|
|
|
if (EC != windows_error::access_denied)
|
|
|
|
return EC;
|
|
|
|
if (is_directory(Name))
|
|
|
|
return error_code(errc::is_a_directory, posix_category());
|
|
|
|
return EC;
|
|
|
|
}
|
|
|
|
|
|
|
|
int OpenFlags = 0;
|
|
|
|
if (Flags & F_Append)
|
|
|
|
OpenFlags |= _O_APPEND;
|
|
|
|
|
|
|
|
if (!(Flags & F_Binary))
|
|
|
|
OpenFlags |= _O_TEXT;
|
|
|
|
|
|
|
|
int FD = ::_open_osfhandle(intptr_t(H), OpenFlags);
|
|
|
|
if (FD == -1) {
|
|
|
|
::CloseHandle(H);
|
|
|
|
return windows_error::invalid_handle;
|
|
|
|
}
|
|
|
|
|
|
|
|
ResultFD = FD;
|
|
|
|
return error_code::success();
|
|
|
|
}
|
2010-12-01 19:32:01 +00:00
|
|
|
} // end namespace fs
|
2013-09-10 19:45:51 +00:00
|
|
|
|
|
|
|
namespace windows {
|
|
|
|
llvm::error_code UTF8ToUTF16(llvm::StringRef utf8,
|
|
|
|
llvm::SmallVectorImpl<wchar_t> &utf16) {
|
|
|
|
int len = ::MultiByteToWideChar(CP_UTF8, MB_ERR_INVALID_CHARS,
|
|
|
|
utf8.begin(), utf8.size(),
|
|
|
|
utf16.begin(), 0);
|
|
|
|
|
|
|
|
if (len == 0)
|
|
|
|
return llvm::windows_error(::GetLastError());
|
|
|
|
|
|
|
|
utf16.reserve(len + 1);
|
|
|
|
utf16.set_size(len);
|
|
|
|
|
|
|
|
len = ::MultiByteToWideChar(CP_UTF8, MB_ERR_INVALID_CHARS,
|
|
|
|
utf8.begin(), utf8.size(),
|
|
|
|
utf16.begin(), utf16.size());
|
|
|
|
|
|
|
|
if (len == 0)
|
|
|
|
return llvm::windows_error(::GetLastError());
|
|
|
|
|
|
|
|
// Make utf16 null terminated.
|
|
|
|
utf16.push_back(0);
|
|
|
|
utf16.pop_back();
|
|
|
|
|
|
|
|
return llvm::error_code::success();
|
|
|
|
}
|
|
|
|
|
|
|
|
llvm::error_code UTF16ToUTF8(const wchar_t *utf16, size_t utf16_len,
|
|
|
|
llvm::SmallVectorImpl<char> &utf8) {
|
|
|
|
// Get length.
|
|
|
|
int len = ::WideCharToMultiByte(CP_UTF8, 0,
|
|
|
|
utf16, utf16_len,
|
|
|
|
utf8.begin(), 0,
|
|
|
|
NULL, NULL);
|
|
|
|
|
|
|
|
if (len == 0)
|
|
|
|
return llvm::windows_error(::GetLastError());
|
|
|
|
|
|
|
|
utf8.reserve(len);
|
|
|
|
utf8.set_size(len);
|
|
|
|
|
|
|
|
// Now do the actual conversion.
|
|
|
|
len = ::WideCharToMultiByte(CP_UTF8, 0,
|
|
|
|
utf16, utf16_len,
|
|
|
|
utf8.data(), utf8.size(),
|
|
|
|
NULL, NULL);
|
|
|
|
|
|
|
|
if (len == 0)
|
|
|
|
return llvm::windows_error(::GetLastError());
|
|
|
|
|
|
|
|
// Make utf8 null terminated.
|
|
|
|
utf8.push_back(0);
|
|
|
|
utf8.pop_back();
|
|
|
|
|
|
|
|
return llvm::error_code::success();
|
|
|
|
}
|
|
|
|
} // end namespace windows
|
2010-11-29 22:28:51 +00:00
|
|
|
} // end namespace sys
|
|
|
|
} // end namespace llvm
|