ppsspp/Common/FileUtil.cpp
2016-10-11 18:49:08 +02:00

904 lines
21 KiB
C++

// Copyright (C) 2003 Dolphin Project.
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, version 2.0 or later versions.
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License 2.0 for more details.
// A copy of the GPL 2.0 should have been included with the program.
// If not, see http://www.gnu.org/licenses/
// Official SVN repository and contact information can be found at
// http://code.google.com/p/dolphin-emu/
#if defined(_MSC_VER)
#pragma warning(disable:4091) // workaround bug in VS2015 headers
#ifndef UNICODE
#error Win32 build requires a unicode build
#endif
#endif
#include "FileUtil.h"
#include "StringUtils.h"
#ifdef _WIN32
#include "CommonWindows.h"
#ifndef _XBOX
#include <shlobj.h> // for SHGetFolderPath
#include <shellapi.h>
#include <commdlg.h> // for GetSaveFileName
#endif
#include <io.h>
#include <direct.h> // getcwd
#else
#include <sys/param.h>
#include <sys/types.h>
#include <dirent.h>
#include <errno.h>
#include <stdlib.h>
#endif
#if defined(__DragonFly__) || defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
#include <sys/sysctl.h> // KERN_PROC_PATHNAME
#include <unistd.h> // getpid
#endif
#if defined(__APPLE__)
#include <CoreFoundation/CFString.h>
#include <CoreFoundation/CFURL.h>
#include <CoreFoundation/CFBundle.h>
#if !defined(IOS)
#include <mach-o/dyld.h>
#endif // !defined(IOS)
#endif // __APPLE__
#include "util/text/utf8.h"
#include <sys/stat.h>
#ifndef S_ISDIR
#define S_ISDIR(m) (((m)&S_IFMT) == S_IFDIR)
#endif
#if !defined(__linux__) && !defined(_WIN32) && !defined(__QNX__)
#define stat64 stat
#define fstat64 fstat
#endif
#define DIR_SEP "/"
#ifdef _WIN32
#define DIR_SEP_CHRS "/\\"
#else
#define DIR_SEP_CHRS "/"
#endif
// This namespace has various generic functions related to files and paths.
// The code still needs a ton of cleanup.
// REMEMBER: strdup considered harmful!
namespace File
{
FILE *OpenCFile(const std::string &filename, const char *mode)
{
#if defined(_WIN32) && defined(UNICODE)
return _wfopen(ConvertUTF8ToWString(filename).c_str(), ConvertUTF8ToWString(mode).c_str());
#else
return fopen(filename.c_str(), mode);
#endif
}
bool OpenCPPFile(std::fstream & stream, const std::string &filename, std::ios::openmode mode)
{
#if defined(_WIN32) && defined(UNICODE)
stream.open(ConvertUTF8ToWString(filename), mode);
#else
stream.open(filename.c_str(), mode);
#endif
return stream.is_open();
}
// Remove any ending forward slashes from directory paths
// Modifies argument.
static void StripTailDirSlashes(std::string &fname) {
if (fname.length() > 1) {
size_t i = fname.length() - 1;
#ifdef _WIN32
if (i == 2 && fname[1] == ':' && fname[2] == '\\')
return;
#endif
while (strchr(DIR_SEP_CHRS, fname[i]))
fname[i--] = '\0';
}
return;
}
// Returns true if file filename exists. Will return true on directories.
bool Exists(const std::string &filename) {
std::string fn = filename;
StripTailDirSlashes(fn);
#if defined(_WIN32)
std::wstring copy = ConvertUTF8ToWString(fn);
// Make sure Windows will no longer handle critical errors, which means no annoying "No disk" dialog
int OldMode = SetErrorMode(SEM_FAILCRITICALERRORS);
bool success = GetFileAttributes(copy.c_str()) != INVALID_FILE_ATTRIBUTES;
SetErrorMode(OldMode);
return success;
#else
struct stat64 file_info;
return stat64(fn.c_str(), &file_info) == 0;
#endif
}
// Returns true if filename is a directory
bool IsDirectory(const std::string &filename)
{
std::string fn = filename;
StripTailDirSlashes(fn);
#if defined(_WIN32)
std::wstring copy = ConvertUTF8ToWString(fn);
DWORD result = GetFileAttributes(copy.c_str());
if (result == INVALID_FILE_ATTRIBUTES) {
WARN_LOG(COMMON, "GetFileAttributes failed on %s: %08x", fn.c_str(), GetLastError());
return false;
}
return (result & FILE_ATTRIBUTE_DIRECTORY) == FILE_ATTRIBUTE_DIRECTORY;
#else
std::string copy(fn);
struct stat64 file_info;
int result = stat64(copy.c_str(), &file_info);
if (result < 0) {
WARN_LOG(COMMON, "IsDirectory: stat failed on %s: %s",
fn.c_str(), GetLastErrorMsg());
return false;
}
return S_ISDIR(file_info.st_mode);
#endif
}
// Deletes a given filename, return true on success
// Doesn't supports deleting a directory
bool Delete(const std::string &filename)
{
INFO_LOG(COMMON, "Delete: file %s", filename.c_str());
// Return true because we care about the file no
// being there, not the actual delete.
if (!Exists(filename))
{
WARN_LOG(COMMON, "Delete: %s does not exists", filename.c_str());
return true;
}
// We can't delete a directory
if (IsDirectory(filename))
{
WARN_LOG(COMMON, "Delete failed: %s is a directory", filename.c_str());
return false;
}
#ifdef _WIN32
if (!DeleteFile(ConvertUTF8ToWString(filename).c_str()))
{
WARN_LOG(COMMON, "Delete: DeleteFile failed on %s: %s",
filename.c_str(), GetLastErrorMsg());
return false;
}
#else
if (unlink(filename.c_str()) == -1) {
WARN_LOG(COMMON, "Delete: unlink failed on %s: %s",
filename.c_str(), GetLastErrorMsg());
return false;
}
#endif
return true;
}
// Returns true if successful, or path already exists.
bool CreateDir(const std::string &path)
{
INFO_LOG(COMMON, "CreateDir: directory %s", path.c_str());
#ifdef _WIN32
if (::CreateDirectory(ConvertUTF8ToWString(path).c_str(), NULL))
return true;
DWORD error = GetLastError();
if (error == ERROR_ALREADY_EXISTS)
{
WARN_LOG(COMMON, "CreateDir: CreateDirectory failed on %s: already exists", path.c_str());
return true;
}
ERROR_LOG(COMMON, "CreateDir: CreateDirectory failed on %s: %i", path.c_str(), error);
return false;
#else
if (mkdir(path.c_str(), 0755) == 0)
return true;
int err = errno;
if (err == EEXIST)
{
WARN_LOG(COMMON, "CreateDir: mkdir failed on %s: already exists", path.c_str());
return true;
}
ERROR_LOG(COMMON, "CreateDir: mkdir failed on %s: %s", path.c_str(), strerror(err));
return false;
#endif
}
// Creates the full path of fullPath returns true on success
bool CreateFullPath(const std::string &fullPath)
{
int panicCounter = 100;
DEBUG_LOG(COMMON, "CreateFullPath: path %s", fullPath.c_str());
if (File::Exists(fullPath))
{
DEBUG_LOG(COMMON, "CreateFullPath: path exists %s", fullPath.c_str());
return true;
}
size_t position = 0;
#ifdef _WIN32
// Skip the drive letter, no need to create C:\.
position = 3;
#endif
while (true)
{
// Find next sub path
position = fullPath.find_first_of(DIR_SEP_CHRS, position);
// we're done, yay!
if (position == fullPath.npos)
{
if (!File::Exists(fullPath))
return File::CreateDir(fullPath);
return true;
}
std::string subPath = fullPath.substr(0, position);
if (!File::Exists(subPath))
File::CreateDir(subPath);
// A safety check
panicCounter--;
if (panicCounter <= 0)
{
ERROR_LOG(COMMON, "CreateFullPath: directory structure too deep");
return false;
}
position++;
}
}
// Deletes a directory filename, returns true on success
bool DeleteDir(const std::string &filename)
{
INFO_LOG(COMMON, "DeleteDir: directory %s", filename.c_str());
// check if a directory
if (!File::IsDirectory(filename))
{
ERROR_LOG(COMMON, "DeleteDir: Not a directory %s", filename.c_str());
return false;
}
#ifdef _WIN32
if (::RemoveDirectory(ConvertUTF8ToWString(filename).c_str()))
return true;
#else
if (rmdir(filename.c_str()) == 0)
return true;
#endif
ERROR_LOG(COMMON, "DeleteDir: %s: %s", filename.c_str(), GetLastErrorMsg());
return false;
}
// renames file srcFilename to destFilename, returns true on success
bool Rename(const std::string &srcFilename, const std::string &destFilename)
{
INFO_LOG(COMMON, "Rename: %s --> %s",
srcFilename.c_str(), destFilename.c_str());
#if defined(_WIN32) && defined(UNICODE)
std::wstring srcw = ConvertUTF8ToWString(srcFilename);
std::wstring destw = ConvertUTF8ToWString(destFilename);
if (_wrename(srcw.c_str(), destw.c_str()) == 0)
return true;
#else
if (rename(srcFilename.c_str(), destFilename.c_str()) == 0)
return true;
#endif
ERROR_LOG(COMMON, "Rename: failed %s --> %s: %s",
srcFilename.c_str(), destFilename.c_str(), GetLastErrorMsg());
return false;
}
// copies file srcFilename to destFilename, returns true on success
bool Copy(const std::string &srcFilename, const std::string &destFilename)
{
INFO_LOG(COMMON, "Copy: %s --> %s",
srcFilename.c_str(), destFilename.c_str());
#ifdef _WIN32
if (CopyFile(ConvertUTF8ToWString(srcFilename).c_str(), ConvertUTF8ToWString(destFilename).c_str(), FALSE))
return true;
ERROR_LOG(COMMON, "Copy: failed %s --> %s: %s",
srcFilename.c_str(), destFilename.c_str(), GetLastErrorMsg());
return false;
#else
// buffer size
#define BSIZE 1024
char buffer[BSIZE];
// Open input file
FILE *input = fopen(srcFilename.c_str(), "rb");
if (!input)
{
ERROR_LOG(COMMON, "Copy: input failed %s --> %s: %s",
srcFilename.c_str(), destFilename.c_str(), GetLastErrorMsg());
return false;
}
// open output file
FILE *output = fopen(destFilename.c_str(), "wb");
if (!output)
{
fclose(input);
ERROR_LOG(COMMON, "Copy: output failed %s --> %s: %s",
srcFilename.c_str(), destFilename.c_str(), GetLastErrorMsg());
return false;
}
// copy loop
while (!feof(input))
{
// read input
int rnum = fread(buffer, sizeof(char), BSIZE, input);
if (rnum != BSIZE)
{
if (ferror(input) != 0)
{
ERROR_LOG(COMMON,
"Copy: failed reading from source, %s --> %s: %s",
srcFilename.c_str(), destFilename.c_str(), GetLastErrorMsg());
fclose(input);
fclose(output);
return false;
}
}
// write output
int wnum = fwrite(buffer, sizeof(char), rnum, output);
if (wnum != rnum)
{
ERROR_LOG(COMMON,
"Copy: failed writing to output, %s --> %s: %s",
srcFilename.c_str(), destFilename.c_str(), GetLastErrorMsg());
fclose(input);
fclose(output);
return false;
}
}
// close flushs
fclose(input);
fclose(output);
return true;
#endif
}
#ifdef _WIN32
static int64_t FiletimeToStatTime(FILETIME ft) {
const int windowsTickResolution = 10000000;
const int64_t secToUnixEpoch = 11644473600LL;
int64_t ticks = ((uint64_t)ft.dwHighDateTime << 32) | ft.dwLowDateTime;
return (int64_t)(ticks / windowsTickResolution - secToUnixEpoch);
}
#endif
// Returns file attributes.
bool GetFileDetails(const std::string &filename, FileDetails *details) {
#ifdef _WIN32
WIN32_FILE_ATTRIBUTE_DATA attr;
if (!GetFileAttributesEx(ConvertUTF8ToWString(filename).c_str(), GetFileExInfoStandard, &attr))
return false;
details->isDirectory = (attr.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) != 0;
details->size = ((u64)attr.nFileSizeHigh << 32) | (u64)attr.nFileSizeLow;
details->atime = FiletimeToStatTime(attr.ftLastAccessTime);
details->mtime = FiletimeToStatTime(attr.ftLastWriteTime);
details->ctime = FiletimeToStatTime(attr.ftCreationTime);
if (attr.dwFileAttributes & FILE_ATTRIBUTE_READONLY) {
details->access = 0444; // Read
} else {
details->access = 0666; // Read/Write
}
if (attr.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) {
details->access |= 0111; // Execute
}
return true;
#else
if (!Exists(filename)) {
return false;
}
struct stat64 buf;
if (stat64(filename.c_str(), &buf) == 0) {
details->size = buf.st_size;
details->isDirectory = S_ISDIR(buf.st_mode);
details->atime = buf.st_atime;
details->mtime = buf.st_mtime;
details->ctime = buf.st_ctime;
details->access = buf.st_mode & 0x1ff;
return true;
} else {
return false;
}
#endif
}
bool GetModifTime(const std::string &filename, tm &return_time) {
memset(&return_time, 0, sizeof(return_time));
FileDetails details;
if (GetFileDetails(filename, &details)) {
time_t t = details.mtime;
localtime_r((time_t*)&t, &return_time);
return true;
} else {
return false;
}
}
std::string GetDir(const std::string &path) {
if (path == "/")
return path;
int n = (int)path.size() - 1;
while (n >= 0 && path[n] != '\\' && path[n] != '/')
n--;
std::string cutpath = n > 0 ? path.substr(0, n) : "";
for (size_t i = 0; i < cutpath.size(); i++) {
if (cutpath[i] == '\\') cutpath[i] = '/';
}
#ifndef _WIN32
if (!cutpath.size()) {
return "/";
}
#endif
return cutpath;
}
std::string GetFilename(std::string path) {
size_t off = GetDir(path).size() + 1;
if (off < path.size())
return path.substr(off);
else
return path;
}
// Returns the size of file (64bit)
// TODO: Add a way to return an error.
u64 GetFileSize(const std::string &filename) {
#if defined(_WIN32) && defined(UNICODE)
WIN32_FILE_ATTRIBUTE_DATA attr;
if (!GetFileAttributesEx(ConvertUTF8ToWString(filename).c_str(), GetFileExInfoStandard, &attr))
return 0;
if (attr.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY)
return 0;
return ((u64)attr.nFileSizeHigh << 32) | (u64)attr.nFileSizeLow;
#else
struct stat64 file_info;
int result = stat64(filename.c_str(), &file_info);
if (result != 0) {
WARN_LOG(COMMON, "GetSize: failed %s: No such file", filename.c_str());
return 0;
}
if (S_ISDIR(file_info.st_mode)) {
WARN_LOG(COMMON, "GetSize: failed %s: is a directory", filename.c_str());
return 0;
}
DEBUG_LOG(COMMON, "GetSize: %s: %lld", filename.c_str(), (long long)file_info.st_size);
return file_info.st_size;
#endif
}
// Overloaded GetSize, accepts FILE*
u64 GetFileSize(FILE *f) {
// can't use off_t here because it can be 32-bit
u64 pos = ftello(f);
if (fseeko(f, 0, SEEK_END) != 0) {
ERROR_LOG(COMMON, "GetSize: seek failed %p: %s",
f, GetLastErrorMsg());
return 0;
}
u64 size = ftello(f);
if ((size != pos) && (fseeko(f, pos, SEEK_SET) != 0)) {
ERROR_LOG(COMMON, "GetSize: seek failed %p: %s",
f, GetLastErrorMsg());
return 0;
}
return size;
}
// creates an empty file filename, returns true on success
bool CreateEmptyFile(const std::string &filename)
{
INFO_LOG(COMMON, "CreateEmptyFile: %s", filename.c_str());
FILE *pFile = OpenCFile(filename, "wb");
if (!pFile) {
ERROR_LOG(COMMON, "CreateEmptyFile: failed %s: %s",
filename.c_str(), GetLastErrorMsg());
return false;
}
fclose(pFile);
return true;
}
// Deletes the given directory and anything under it. Returns true on success.
bool DeleteDirRecursively(const std::string &directory)
{
INFO_LOG(COMMON, "DeleteDirRecursively: %s", directory.c_str());
#ifdef _WIN32
// Find the first file in the directory.
WIN32_FIND_DATA ffd;
HANDLE hFind = FindFirstFile(ConvertUTF8ToWString(directory + "\\*").c_str(), &ffd);
if (hFind == INVALID_HANDLE_VALUE)
{
FindClose(hFind);
return false;
}
// windows loop
do
{
const std::string virtualName = ConvertWStringToUTF8(ffd.cFileName);
#else
struct dirent dirent, *result = NULL;
DIR *dirp = opendir(directory.c_str());
if (!dirp)
return false;
// non windows loop
while (!readdir_r(dirp, &dirent, &result) && result)
{
const std::string virtualName = result->d_name;
#endif
// check for "." and ".."
if (((virtualName[0] == '.') && (virtualName[1] == '\0')) ||
((virtualName[0] == '.') && (virtualName[1] == '.') &&
(virtualName[2] == '\0')))
continue;
std::string newPath = directory + DIR_SEP + virtualName;
if (IsDirectory(newPath))
{
if (!DeleteDirRecursively(newPath))
{
#ifndef _WIN32
closedir(dirp);
#endif
return false;
}
}
else
{
if (!File::Delete(newPath))
{
#ifndef _WIN32
closedir(dirp);
#endif
return false;
}
}
#ifdef _WIN32
} while (FindNextFile(hFind, &ffd) != 0);
FindClose(hFind);
#else
}
closedir(dirp);
#endif
File::DeleteDir(directory);
return true;
}
// Create directory and copy contents (does not overwrite existing files)
void CopyDir(const std::string &source_path, const std::string &dest_path)
{
#ifndef _WIN32
if (source_path == dest_path) return;
if (!File::Exists(source_path)) return;
if (!File::Exists(dest_path)) File::CreateFullPath(dest_path);
struct dirent_large { struct dirent entry; char padding[FILENAME_MAX+1]; };
struct dirent_large diren;
struct dirent *result = NULL;
DIR *dirp = opendir(source_path.c_str());
if (!dirp) return;
while (!readdir_r(dirp, (dirent*) &diren, &result) && result)
{
const std::string virtualName(result->d_name);
// check for "." and ".."
if (((virtualName[0] == '.') && (virtualName[1] == '\0')) ||
((virtualName[0] == '.') && (virtualName[1] == '.') &&
(virtualName[2] == '\0')))
continue;
std::string source, dest;
source = source_path + virtualName;
dest = dest_path + virtualName;
if (IsDirectory(source))
{
source += '/';
dest += '/';
if (!File::Exists(dest)) File::CreateFullPath(dest);
CopyDir(source, dest);
}
else if (!File::Exists(dest)) File::Copy(source, dest);
}
closedir(dirp);
#endif
}
void openIniFile(const std::string fileName) {
std::string iniFile;
#if defined(_WIN32)
iniFile = fileName;
// Can't rely on a .txt file extension to auto-open in the right editor,
// so let's find notepad
wchar_t notepad_path[MAX_PATH + 1];
GetSystemDirectory(notepad_path, MAX_PATH);
wcscat(notepad_path, L"\\notepad.exe");
wchar_t ini_path[MAX_PATH + 1] = { 0 };
wcsncpy(ini_path, ConvertUTF8ToWString(iniFile).c_str(), MAX_PATH);
// Flip any slashes...
for (size_t i = 0; i < wcslen(ini_path); i++) {
if (ini_path[i] == '/')
ini_path[i] = '\\';
}
// One for the space, one for the null.
wchar_t command_line[MAX_PATH * 2 + 1 + 1];
wsprintf(command_line, L"%s %s", notepad_path, ini_path);
STARTUPINFO si;
memset(&si, 0, sizeof(si));
si.cb = sizeof(si);
si.wShowWindow = SW_SHOW;
PROCESS_INFORMATION pi;
memset(&pi, 0, sizeof(pi));
UINT retval = CreateProcess(0, command_line, 0, 0, 0, 0, 0, 0, &si, &pi);
if (!retval) {
ERROR_LOG(COMMON, "Failed creating notepad process");
}
CloseHandle(pi.hThread);
CloseHandle(pi.hProcess);
#elif !defined(MOBILE_DEVICE)
#if defined(__APPLE__)
iniFile = "open ";
#else
iniFile = "xdg-open ";
#endif
iniFile.append(fileName);
NOTICE_LOG(BOOT, "Launching %s", iniFile.c_str());
int retval = system(iniFile.c_str());
if (retval != 0) {
ERROR_LOG(COMMON, "Failed to launch ini file");
}
#endif
}
// Returns the current directory
std::string GetCurrentDir()
{
char *dir;
#ifndef _XBOX
// Get the current working directory (getcwd uses malloc)
if (!(dir = __getcwd(NULL, 0))) {
ERROR_LOG(COMMON, "GetCurrentDirectory failed: %s",
GetLastErrorMsg());
return NULL;
}
std::string strDir = dir;
free(dir);
return strDir;
#else
return "game:\\";
#endif
}
// Sets the current directory to the given directory
bool SetCurrentDir(const std::string &directory)
{
#ifndef _XBOX
return __chdir(directory.c_str()) == 0;
#else
return false;
#endif
}
const std::string &GetExeDirectory()
{
static std::string ExePath;
if (ExePath.empty())
#ifndef _XBOX
{
#ifdef _WIN32
TCHAR program_path[4096] = {0};
GetModuleFileName(NULL, program_path, ARRAY_SIZE(program_path) - 1);
program_path[ARRAY_SIZE(program_path) - 1] = '\0';
TCHAR *last_slash = _tcsrchr(program_path, '\\');
if (last_slash != NULL)
*(last_slash + 1) = '\0';
#ifdef UNICODE
ExePath = ConvertWStringToUTF8(program_path);
#else
ExePath = program_path;
#endif
#elif (defined(__APPLE__) && !defined(IOS)) || defined(__linux__) || defined(KERN_PROC_PATHNAME)
char program_path[4096];
uint32_t program_path_size = sizeof(program_path) - 1;
#if defined(__linux__)
if (readlink("/proc/self/exe", program_path, 4095) > 0)
#elif defined(__APPLE__) && !defined(IOS)
if (_NSGetExecutablePath(program_path, &program_path_size) == 0)
#elif defined(KERN_PROC_PATHNAME)
int mib[4] = {
CTL_KERN,
KERN_PROC,
KERN_PROC_PATHNAME,
getpid()
};
size_t sz = program_path_size;
if (sysctl(mib, 4, program_path, &sz, NULL, 0) == 0)
#else
#error Unmatched ifdef.
#endif
{
program_path[sizeof(program_path) - 1] = '\0';
char *last_slash = strrchr(program_path, '/');
if (last_slash != NULL)
*(last_slash + 1) = '\0';
ExePath = program_path;
}
#endif
}
return ExePath;
#else
static std::wstring ExePath = L"game:\\";
return ExePath;
#endif
}
IOFile::IOFile()
: m_file(NULL), m_good(true)
{}
IOFile::IOFile(std::FILE* file)
: m_file(file), m_good(true)
{}
IOFile::IOFile(const std::string& filename, const char openmode[])
: m_file(NULL), m_good(true)
{
Open(filename, openmode);
}
IOFile::~IOFile()
{
Close();
}
bool IOFile::Open(const std::string& filename, const char openmode[])
{
Close();
m_file = File::OpenCFile(filename, openmode);
m_good = IsOpen();
return m_good;
}
bool IOFile::Close()
{
if (!IsOpen() || 0 != std::fclose(m_file))
m_good = false;
m_file = NULL;
return m_good;
}
std::FILE* IOFile::ReleaseHandle()
{
std::FILE* const ret = m_file;
m_file = NULL;
return ret;
}
void IOFile::SetHandle(std::FILE* file)
{
Close();
Clear();
m_file = file;
}
u64 IOFile::GetSize()
{
if (IsOpen())
return File::GetFileSize(m_file);
else
return 0;
}
bool IOFile::Seek(s64 off, int origin)
{
if (!IsOpen() || 0 != fseeko(m_file, off, origin))
m_good = false;
return m_good;
}
u64 IOFile::Tell()
{
if (IsOpen())
return ftello(m_file);
else
return -1;
}
bool IOFile::Flush()
{
if (!IsOpen() || 0 != std::fflush(m_file))
m_good = false;
return m_good;
}
bool IOFile::Resize(u64 size)
{
#ifndef _XBOX
if (!IsOpen() || 0 !=
#ifdef _WIN32
// ector: _chsize sucks, not 64-bit safe
// F|RES: changed to _chsize_s. i think it is 64-bit safe
_chsize_s(_fileno(m_file), size)
#else
// TODO: handle 64bit and growing
ftruncate(fileno(m_file), size)
#endif
)
m_good = false;
return m_good;
#else
// TODO: Implement.
return false;
#endif
}
} // namespace