4.1

1 files changed, 0 insertions, 217 deletions

diff --git a/shared/file_io.cpp b/shared/file_io.cpp
deleted file mode 100644
index 59b78044..00000000
--- a/shared/file_io.cpp
+++ /dev/null
@@ -1,217 +0,0 @@
-// **************************************************************************
-// * This file is part of the FreeFileSync project. It is distributed under *
-// * GNU General Public License: http://www.gnu.org/licenses/gpl.html       *
-// * Copyright (C) 2008-2011 ZenJu (zhnmju123 AT gmx.de)                    *
-// **************************************************************************
-
-#include "file_io.h"
-#include "last_error.h"
-#include "i18n.h"
-
-#ifdef FFS_WIN
-#include "long_path_prefix.h"
-#elif defined FFS_LINUX
-#include <cerrno>
-#endif
-
-using namespace zen;
-
-
-FileInput::FileInput(FileHandle handle, const Zstring& filename) :
-    eofReached(false),
-    fileHandle(handle),
-    filename_(filename) {}
-
-
-FileInput::FileInput(const Zstring& filename)  : //throw FileError, ErrorNotExisting
-    eofReached(false),
-    filename_(filename)
-{
-#ifdef FFS_WIN
-    fileHandle = ::CreateFile(zen::applyLongPathPrefix(filename).c_str(),
-                              GENERIC_READ,
-                              FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE, //all shared modes are required to read open files that are shared by other applications
-                              0,
-                              OPEN_EXISTING,
-                              FILE_FLAG_SEQUENTIAL_SCAN,
-                              /* possible values: (Reference http://msdn.microsoft.com/en-us/library/aa363858(VS.85).aspx#caching_behavior)
-                                FILE_FLAG_NO_BUFFERING
-                                FILE_FLAG_RANDOM_ACCESS
-                                FILE_FLAG_SEQUENTIAL_SCAN
-
-                                tests on Win7 x64 show that FILE_FLAG_SEQUENTIAL_SCAN provides best performance for binary comparison in all cases:
-                                - comparing different physical disks (DVD <-> HDD and HDD <-> HDD)
-                                - even on same physical disk! (HDD <-> HDD)
-                                - independent from client buffer size!
-
-                                tests on XP show that FILE_FLAG_SEQUENTIAL_SCAN provides best performance for binary comparison when
-                                - comparing different physical disks (DVD <-> HDD)
-
-                                while FILE_FLAG_RANDOM_ACCESS offers best performance for
-                                - same physical disk (HDD <-> HDD)
-
-                              Problem: bad XP implementation of prefetch makes flag FILE_FLAG_SEQUENTIAL_SCAN effectively load two files at once from one drive
-                              swapping every 64 kB (or similar). File access times explode!
-                              => For XP it is critical to use FILE_FLAG_RANDOM_ACCESS (to disable prefetch) if reading two files on same disk and
-                              FILE_FLAG_SEQUENTIAL_SCAN when reading from different disk (e.g. massive performance improvement compared to random access for DVD <-> HDD!)
-                              => there is no compromise that satisfies all cases! (on XP)
-
-                              for FFS most comparisons are probably between different disks => let's use FILE_FLAG_SEQUENTIAL_SCAN
-                               */
-                              NULL);
-    if (fileHandle == INVALID_HANDLE_VALUE)
-    {
-        const DWORD lastError = ::GetLastError();
-
-        std::wstring errorMessage = _("Error opening file:") + "\n\"" + filename_ + "\"" + "\n\n" + zen::getLastErrorFormatted(lastError);
-
-        if (lastError == ERROR_FILE_NOT_FOUND ||
-            lastError == ERROR_PATH_NOT_FOUND)
-            throw ErrorNotExisting(errorMessage);
-
-        throw FileError(errorMessage);
-    }
-
-#elif defined FFS_LINUX
-    fileHandle = ::fopen(filename.c_str(), "r,type=record,noseek"); //utilize UTF-8 filename
-    if (fileHandle == NULL)
-    {
-        const int lastError = errno;
-
-        std::wstring errorMessage = _("Error opening file:") + "\n\"" + filename_ + "\"" + "\n\n" + zen::getLastErrorFormatted(lastError);
-
-        if (lastError == ENOENT)
-            throw ErrorNotExisting(errorMessage);
-
-        throw FileError(errorMessage);
-    }
-#endif
-}
-
-
-FileInput::~FileInput()
-{
-#ifdef FFS_WIN
-    ::CloseHandle(fileHandle);
-#elif defined FFS_LINUX
-    ::fclose(fileHandle); //NEVER allow passing NULL to fclose! -> crash!; fileHandle != NULL in this context!
-#endif
-}
-
-
-size_t FileInput::read(void* buffer, size_t bytesToRead) //returns actual number of bytes read; throw (FileError)
-{
-#ifdef FFS_WIN
-    DWORD bytesRead = 0;
-    if (!::ReadFile(fileHandle,    //__in         HANDLE hFile,
-                    buffer,        //__out        LPVOID lpBuffer,
-                    static_cast<DWORD>(bytesToRead), //__in         DWORD nNumberOfBytesToRead,
-                    &bytesRead,    //__out_opt    LPDWORD lpNumberOfBytesRead,
-                    NULL))         //__inout_opt  LPOVERLAPPED lpOverlapped
-#elif defined FFS_LINUX
-    const size_t bytesRead = ::fread(buffer, 1, bytesToRead, fileHandle);
-    if (::ferror(fileHandle) != 0)
-#endif
-        throw FileError(_("Error reading file:") + "\n\"" + filename_ + "\"" + "\n\n" + zen::getLastErrorFormatted() + " (r)");
-
-#ifdef FFS_WIN
-    if (bytesRead < bytesToRead) //falsify only!
-#elif defined FFS_LINUX
-    if (::feof(fileHandle) != 0)
-#endif
-        eofReached = true;
-
-    if (bytesRead > bytesToRead)
-        throw FileError(_("Error reading file:") + "\n\"" + filename_ + "\"" + "\n\n" + "buffer overflow");
-
-    return bytesRead;
-}
-
-
-bool FileInput::eof() //end of file reached
-{
-    return eofReached;
-}
-
-
-FileOutput::FileOutput(FileHandle handle, const Zstring& filename) : fileHandle(handle), filename_(filename) {}
-
-
-FileOutput::FileOutput(const Zstring& filename, AccessFlag access) : //throw FileError, ErrorTargetPathMissing, ErrorTargetExisting
-    filename_(filename)
-{
-#ifdef FFS_WIN
-    fileHandle = ::CreateFile(zen::applyLongPathPrefix(filename).c_str(),
-                              GENERIC_READ | GENERIC_WRITE,
-                              /*  http://msdn.microsoft.com/en-us/library/aa363858(v=vs.85).aspx
-                                     quote: When an application creates a file across a network, it is better
-                                     to use GENERIC_READ | GENERIC_WRITE for dwDesiredAccess than to use GENERIC_WRITE alone.
-                                     The resulting code is faster, because the redirector can use the cache manager and send fewer SMBs with more data.
-                                     This combination also avoids an issue where writing to a file across a network can occasionally return ERROR_ACCESS_DENIED. */
-                              FILE_SHARE_READ | FILE_SHARE_DELETE, //note: FILE_SHARE_DELETE is required to rename file while handle is open!
-                              0,
-                              access == ACC_OVERWRITE ? CREATE_ALWAYS : CREATE_NEW,
-                              FILE_ATTRIBUTE_NORMAL | FILE_FLAG_SEQUENTIAL_SCAN,
-                              NULL);
-    if (fileHandle == INVALID_HANDLE_VALUE)
-    {
-        const DWORD lastError = ::GetLastError();
-        std::wstring errorMessage = _("Error writing file:") + "\n\"" + filename_ + "\"" + "\n\n" + zen::getLastErrorFormatted(lastError);
-
-        if (lastError == ERROR_FILE_EXISTS)
-            throw ErrorTargetExisting(errorMessage);
-
-        if (lastError == ERROR_PATH_NOT_FOUND)
-            throw ErrorTargetPathMissing(errorMessage);
-
-        throw FileError(errorMessage);
-    }
-
-#elif defined FFS_LINUX
-    fileHandle = ::fopen(filename.c_str(),
-                         //GNU extension: https://www.securecoding.cert.org/confluence/display/cplusplus/FIO03-CPP.+Do+not+make+assumptions+about+fopen()+and+file+creation
-                         access == ACC_OVERWRITE ? "w,type=record,noseek" : "wx,type=record,noseek");
-    if (fileHandle == NULL)
-    {
-        const int lastError = errno;
-        std::wstring errorMessage = _("Error writing file:") + "\n\"" + filename_ + "\"" + "\n\n" + zen::getLastErrorFormatted(lastError);
-        if (lastError == EEXIST)
-            throw ErrorTargetExisting(errorMessage);
-
-        if (lastError == ENOENT)
-            throw ErrorTargetPathMissing(errorMessage);
-
-        throw FileError(errorMessage);
-    }
-#endif
-}
-
-
-FileOutput::~FileOutput()
-{
-#ifdef FFS_WIN
-    ::CloseHandle(fileHandle);
-#elif defined FFS_LINUX
-    ::fclose(fileHandle); //NEVER allow passing NULL to fclose! -> crash!
-#endif
-}
-
-
-void FileOutput::write(const void* buffer, size_t bytesToWrite) //throw FileError
-{
-#ifdef FFS_WIN
-    DWORD bytesWritten = 0;
-    if (!::WriteFile(fileHandle,    //__in         HANDLE hFile,
-                     buffer,        //__out        LPVOID lpBuffer,
-                     static_cast<DWORD>(bytesToWrite),  //__in         DWORD nNumberOfBytesToWrite,
-                     &bytesWritten, //__out_opt    LPDWORD lpNumberOfBytesWritten,
-                     NULL))          //__inout_opt  LPOVERLAPPED lpOverlapped
-#elif defined FFS_LINUX
-    const size_t bytesWritten = ::fwrite(buffer, 1, bytesToWrite, fileHandle);
-    if (::ferror(fileHandle) != 0)
-#endif
-        throw FileError(_("Error writing file:") + "\n\"" + filename_ + "\"" + "\n\n" + zen::getLastErrorFormatted() + " (w)"); //w -> distinguish from fopen error message!
-
-    if (bytesWritten != bytesToWrite) //must be fulfilled for synchronous writes!
-        throw FileError(_("Error writing file:") + "\n\"" + filename_ + "\"" + "\n\n" + "incomplete write");
-}