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4145b60a0e
ppsspp/Core/FileSystems/DirectoryFileSystem.cpp
Florent Castelli 4145b60a0e symbian: Remove!
2016-10-11 18:49:08 +02:00

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// Copyright (c) 2012- PPSSPP 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 git repository and contact information can be found at
// https://github.com/hrydgard/ppsspp and http://www.ppsspp.org/.
#include <limits>
#include "file/free.h"
#include "file/zip_read.h"
#include "i18n/i18n.h"
#include "util/text/utf8.h"
#include "Common/ChunkFile.h"
#include "Common/FileUtil.h"
#include "Core/FileSystems/DirectoryFileSystem.h"
#include "Core/FileSystems/ISOFileSystem.h"
#include "Core/HLE/sceKernel.h"
#include "Core/HW/MemoryStick.h"
#include "Core/Host.h"
#include "Core/Reporting.h"
#ifdef _WIN32
#include "Common/CommonWindows.h"
#include <sys/stat.h>
#else
#include <dirent.h>
#include <unistd.h>
#include <sys/stat.h>
#if defined(ANDROID)
#include <sys/types.h>
#include <sys/vfs.h>
#define statvfs statfs
#else
#include <sys/statvfs.h>
#endif
#include <ctype.h>
#include <fcntl.h>
#endif
#if HOST_IS_CASE_SENSITIVE
static bool FixFilenameCase(const std::string &path, std::string &filename)
{
// Are we lucky?
if (File::Exists(path + filename))
return true;
size_t filenameSize = filename.size(); // size in bytes, not characters
for (size_t i = 0; i < filenameSize; i++)
{
filename[i] = tolower(filename[i]);
}
//TODO: lookup filename in cache for "path"
struct dirent_large { struct dirent entry; char padding[FILENAME_MAX+1]; } diren;
struct dirent_large;
struct dirent *result = NULL;
DIR *dirp = opendir(path.c_str());
if (!dirp)
return false;
bool retValue = false;
while (!readdir_r(dirp, (dirent*) &diren, &result) && result)
{
if (strlen(result->d_name) != filenameSize)
continue;
size_t i;
for (i = 0; i < filenameSize; i++)
{
if (filename[i] != tolower(result->d_name[i]))
break;
}
if (i < filenameSize)
continue;
filename = result->d_name;
retValue = true;
}
closedir(dirp);
return retValue;
}
bool FixPathCase(std::string& basePath, std::string &path, FixPathCaseBehavior behavior)
{
size_t len = path.size();
if (len == 0)
return true;
if (path[len - 1] == '/')
{
len--;
if (len == 0)
return true;
}
std::string fullPath;
fullPath.reserve(basePath.size() + len + 1);
fullPath.append(basePath);
size_t start = 0;
while (start < len)
{
size_t i = path.find('/', start);
if (i == std::string::npos)
i = len;
if (i > start)
{
std::string component = path.substr(start, i - start);
// Fix case and stop on nonexistant path component
if (FixFilenameCase(fullPath, component) == false) {
// Still counts as success if partial matches allowed or if this
// is the last component and only the ones before it are required
return (behavior == FPC_PARTIAL_ALLOWED || (behavior == FPC_PATH_MUST_EXIST && i >= len));
}
path.replace(start, i - start, component);
fullPath.append(component);
fullPath.append(1, '/');
}
start = i + 1;
}
return true;
}
#endif
DirectoryFileSystem::DirectoryFileSystem(IHandleAllocator *_hAlloc, std::string _basePath, int _flags) : basePath(_basePath), flags(_flags) {
File::CreateFullPath(basePath);
hAlloc = _hAlloc;
}
std::string DirectoryFileHandle::GetLocalPath(std::string& basePath, std::string localpath)
{
if (localpath.empty())
return basePath;
if (localpath[0] == '/')
localpath.erase(0,1);
//Convert slashes
#ifdef _WIN32
for (size_t i = 0; i < localpath.size(); i++) {
if (localpath[i] == '/')
localpath[i] = '\\';
}
#endif
return basePath + localpath;
}
bool DirectoryFileHandle::Open(std::string &basePath, std::string &fileName, FileAccess access, u32 &error)
{
error = 0;
#if HOST_IS_CASE_SENSITIVE
if (access & (FILEACCESS_APPEND|FILEACCESS_CREATE|FILEACCESS_WRITE))
{
DEBUG_LOG(FILESYS, "Checking case for path %s", fileName.c_str());
if ( ! FixPathCase(basePath, fileName, FPC_PATH_MUST_EXIST) )
return false; // or go on and attempt (for a better error code than just 0?)
}
// else we try fopen first (in case we're lucky) before simulating case insensitivity
#endif
std::string fullName = GetLocalPath(basePath,fileName);
DEBUG_LOG(FILESYS,"Actually opening %s", fullName.c_str());
// On the PSP, truncating doesn't lose data. If you seek later, you'll recover it.
// This is abnormal, so we deviate from the PSP's behavior and truncate on write/close.
// This means it's incorrectly not truncated before the write.
if (access & FILEACCESS_TRUNCATE) {
needsTrunc_ = 0;
}
//TODO: tests, should append seek to end of file? seeking in a file opened for append?
#ifdef _WIN32
// Convert parameters to Windows permissions and access
DWORD desired = 0;
DWORD sharemode = 0;
DWORD openmode = 0;
if (access & FILEACCESS_READ) {
desired |= GENERIC_READ;
sharemode |= FILE_SHARE_READ;
}
if (access & FILEACCESS_WRITE) {
desired |= GENERIC_WRITE;
sharemode |= FILE_SHARE_WRITE;
}
if (access & FILEACCESS_CREATE) {
openmode = OPEN_ALWAYS;
} else {
openmode = OPEN_EXISTING;
}
//Let's do it!
hFile = CreateFile(ConvertUTF8ToWString(fullName).c_str(), desired, sharemode, 0, openmode, 0, 0);
bool success = hFile != INVALID_HANDLE_VALUE;
if (!success) {
DWORD w32err = GetLastError();
if (w32err == ERROR_SHARING_VIOLATION) {
// Sometimes, the file is locked for write, let's try again.
sharemode |= FILE_SHARE_WRITE;
hFile = CreateFile(ConvertUTF8ToWString(fullName).c_str(), desired, sharemode, 0, openmode, 0, 0);
success = hFile != INVALID_HANDLE_VALUE;
if (!success) {
w32err = GetLastError();
}
}
if (w32err == ERROR_DISK_FULL || w32err == ERROR_NOT_ENOUGH_QUOTA) {
// This is returned when the disk is full.
I18NCategory *err = GetI18NCategory("Error");
host->NotifyUserMessage(err->T("Disk full while writing data"));
error = SCE_KERNEL_ERROR_ERRNO_NO_PERM;
}
}
#else
int flags = 0;
if (access & FILEACCESS_APPEND) {
flags |= O_APPEND;
}
if ((access & FILEACCESS_READ) && (access & FILEACCESS_WRITE)) {
flags |= O_RDWR;
} else if (access & FILEACCESS_READ) {
flags |= O_RDONLY;
} else if (access & FILEACCESS_WRITE) {
flags |= O_WRONLY;
}
if (access & FILEACCESS_CREATE) {
flags |= O_CREAT;
}
hFile = open(fullName.c_str(), flags, 0666);
bool success = hFile != -1;
#endif
#if HOST_IS_CASE_SENSITIVE
if (!success && !(access & FILEACCESS_CREATE)) {
if ( ! FixPathCase(basePath,fileName, FPC_PATH_MUST_EXIST) )
return 0; // or go on and attempt (for a better error code than just 0?)
fullName = GetLocalPath(basePath,fileName);
const char *fullNameC = fullName.c_str();
DEBUG_LOG(FILESYS, "Case may have been incorrect, second try opening %s (%s)", fullNameC, fileName.c_str());
// And try again with the correct case this time
#ifdef _WIN32
hFile = CreateFile(fullNameC, desired, sharemode, 0, openmode, 0, 0);
success = hFile != INVALID_HANDLE_VALUE;
#else
hFile = open(fullNameC, flags, 0666);
success = hFile != -1;
#endif
}
#endif
#ifndef _WIN32
if (success) {
struct stat st;
if (fstat(hFile, &st) == 0 && S_ISDIR(st.st_mode)) {
close(hFile);
errno = EISDIR;
success = false;
}
} else if (errno == ENOSPC) {
// This is returned when the disk is full.
I18NCategory *err = GetI18NCategory("Error");
host->NotifyUserMessage(err->T("Disk full while writing data"));
error = SCE_KERNEL_ERROR_ERRNO_NO_PERM;
}
#endif
return success;
}
size_t DirectoryFileHandle::Read(u8* pointer, s64 size)
{
size_t bytesRead = 0;
if (needsTrunc_ != -1) {
// If the file was marked to be truncated, pretend there's nothing.
// On a PSP. it actually is truncated, but the data wasn't erased.
off_t off = (off_t)Seek(0, FILEMOVE_CURRENT);
if (needsTrunc_ <= off) {
return 0;
}
if (needsTrunc_ < off + size) {
size = needsTrunc_ - off;
}
}
#ifdef _WIN32
::ReadFile(hFile, (LPVOID)pointer, (DWORD)size, (LPDWORD)&bytesRead, 0);
#else
bytesRead = read(hFile, pointer, size);
#endif
return bytesRead;
}
size_t DirectoryFileHandle::Write(const u8* pointer, s64 size)
{
size_t bytesWritten = 0;
bool diskFull = false;
#ifdef _WIN32
BOOL success = ::WriteFile(hFile, (LPVOID)pointer, (DWORD)size, (LPDWORD)&bytesWritten, 0);
if (success == FALSE) {
DWORD err = GetLastError();
diskFull = err == ERROR_DISK_FULL || err == ERROR_NOT_ENOUGH_QUOTA;
}
#else
bytesWritten = write(hFile, pointer, size);
if (bytesWritten == (size_t)-1) {
diskFull = errno == ENOSPC;
}
#endif
if (needsTrunc_ != -1) {
off_t off = (off_t)Seek(0, FILEMOVE_CURRENT);
if (needsTrunc_ < off) {
needsTrunc_ = off;
}
}
if (diskFull) {
ERROR_LOG(FILESYS, "Disk full");
I18NCategory *err = GetI18NCategory("Error");
host->NotifyUserMessage(err->T("Disk full while writing data"));
// We only return an error when the disk is actually full.
// When writing this would cause the disk to be full, so it wasn't written, we return 0.
if (MemoryStick_FreeSpace() == 0) {
// Sign extend on 64-bit.
return (size_t)(s64)(s32)SCE_KERNEL_ERROR_ERRNO_DEVICE_NO_FREE_SPACE;
}
}
return bytesWritten;
}
size_t DirectoryFileHandle::Seek(s32 position, FileMove type)
{
if (needsTrunc_ != -1) {
// If the file is "currently truncated" move to the end based on that position.
// The actual, underlying file hasn't been truncated (yet.)
if (type == FILEMOVE_END) {
type = FILEMOVE_BEGIN;
position = needsTrunc_ + position;
}
}
#ifdef _WIN32
DWORD moveMethod = 0;
switch (type) {
case FILEMOVE_BEGIN: moveMethod = FILE_BEGIN; break;
case FILEMOVE_CURRENT: moveMethod = FILE_CURRENT; break;
case FILEMOVE_END: moveMethod = FILE_END; break;
}
DWORD newPos = SetFilePointer(hFile, (LONG)position, 0, moveMethod);
return newPos;
#else
int moveMethod = 0;
switch (type) {
case FILEMOVE_BEGIN: moveMethod = SEEK_SET; break;
case FILEMOVE_CURRENT: moveMethod = SEEK_CUR; break;
case FILEMOVE_END: moveMethod = SEEK_END; break;
}
return lseek(hFile, position, moveMethod);
#endif
}
void DirectoryFileHandle::Close()
{
if (needsTrunc_ != -1) {
#ifdef _WIN32
Seek((s32)needsTrunc_, FILEMOVE_BEGIN);
if (SetEndOfFile(hFile) == 0) {
ERROR_LOG_REPORT(FILESYS, "Failed to truncate file.");
}
#else
if (ftruncate(hFile, (off_t)needsTrunc_) != 0) {
ERROR_LOG_REPORT(FILESYS, "Failed to truncate file.");
}
#endif
}
#ifdef _WIN32
if (hFile != (HANDLE)-1)
CloseHandle(hFile);
#else
if (hFile != -1)
close(hFile);
#endif
}
void DirectoryFileSystem::CloseAll() {
for (auto iter = entries.begin(); iter != entries.end(); ++iter) {
iter->second.hFile.Close();
}
entries.clear();
}
DirectoryFileSystem::~DirectoryFileSystem() {
CloseAll();
}
std::string DirectoryFileSystem::GetLocalPath(std::string localpath) {
if (localpath.empty())
return basePath;
if (localpath[0] == '/')
localpath.erase(0,1);
//Convert slashes
#ifdef _WIN32
for (size_t i = 0; i < localpath.size(); i++) {
if (localpath[i] == '/')
localpath[i] = '\\';
}
#endif
return basePath + localpath;
}
bool DirectoryFileSystem::MkDir(const std::string &dirname) {
#if HOST_IS_CASE_SENSITIVE
// Must fix case BEFORE attempting, because MkDir would create
// duplicate (different case) directories
std::string fixedCase = dirname;
if ( ! FixPathCase(basePath,fixedCase, FPC_PARTIAL_ALLOWED) )
return false;
return File::CreateFullPath(GetLocalPath(fixedCase));
#else
return File::CreateFullPath(GetLocalPath(dirname));
#endif
}
bool DirectoryFileSystem::RmDir(const std::string &dirname) {
std::string fullName = GetLocalPath(dirname);
#if HOST_IS_CASE_SENSITIVE
// Maybe we're lucky?
if (File::DeleteDirRecursively(fullName))
return true;
// Nope, fix case and try again
fullName = dirname;
if ( ! FixPathCase(basePath,fullName, FPC_FILE_MUST_EXIST) )
return false; // or go on and attempt (for a better error code than just false?)
fullName = GetLocalPath(fullName);
#endif
/*#ifdef _WIN32
return RemoveDirectory(fullName.c_str()) == TRUE;
#else
return 0 == rmdir(fullName.c_str());
#endif*/
return File::DeleteDirRecursively(fullName);
}
int DirectoryFileSystem::RenameFile(const std::string &from, const std::string &to) {
std::string fullTo = to;
// Rename ignores the path (even if specified) on to.
size_t chop_at = to.find_last_of('/');
if (chop_at != to.npos)
fullTo = to.substr(chop_at + 1);
// Now put it in the same directory as from.
size_t dirname_end = from.find_last_of('/');
if (dirname_end != from.npos)
fullTo = from.substr(0, dirname_end + 1) + fullTo;
// At this point, we should check if the paths match and give an already exists error.
if (from == fullTo)
return SCE_KERNEL_ERROR_ERRNO_FILE_ALREADY_EXISTS;
std::string fullFrom = GetLocalPath(from);
#if HOST_IS_CASE_SENSITIVE
// In case TO should overwrite a file with different case
if ( ! FixPathCase(basePath,fullTo, FPC_PATH_MUST_EXIST) )
return -1; // or go on and attempt (for a better error code than just false?)
#endif
fullTo = GetLocalPath(fullTo);
const char * fullToC = fullTo.c_str();
#ifdef _WIN32
bool retValue = (MoveFile(ConvertUTF8ToWString(fullFrom).c_str(), ConvertUTF8ToWString(fullToC).c_str()) == TRUE);
#else
bool retValue = (0 == rename(fullFrom.c_str(), fullToC));
#endif
#if HOST_IS_CASE_SENSITIVE
if (! retValue)
{
// May have failed due to case sensitivity on FROM, so try again
fullFrom = from;
if ( ! FixPathCase(basePath,fullFrom, FPC_FILE_MUST_EXIST) )
return -1; // or go on and attempt (for a better error code than just false?)
fullFrom = GetLocalPath(fullFrom);
#ifdef _WIN32
retValue = (MoveFile(fullFrom.c_str(), fullToC) == TRUE);
#else
retValue = (0 == rename(fullFrom.c_str(), fullToC));
#endif
}
#endif
// TODO: Better error codes.
return retValue ? 0 : (int)SCE_KERNEL_ERROR_ERRNO_FILE_ALREADY_EXISTS;
}
bool DirectoryFileSystem::RemoveFile(const std::string &filename) {
std::string fullName = GetLocalPath(filename);
#ifdef _WIN32
bool retValue = (::DeleteFileA(fullName.c_str()) == TRUE);
#else
bool retValue = (0 == unlink(fullName.c_str()));
#endif
#if HOST_IS_CASE_SENSITIVE
if (! retValue)
{
// May have failed due to case sensitivity, so try again
fullName = filename;
if ( ! FixPathCase(basePath,fullName, FPC_FILE_MUST_EXIST) )
return false; // or go on and attempt (for a better error code than just false?)
fullName = GetLocalPath(fullName);
#ifdef _WIN32
retValue = (::DeleteFileA(fullName.c_str()) == TRUE);
#else
retValue = (0 == unlink(fullName.c_str()));
#endif
}
#endif
return retValue;
}
u32 DirectoryFileSystem::OpenFile(std::string filename, FileAccess access, const char *devicename) {
OpenFileEntry entry;
u32 err = 0;
bool success = entry.hFile.Open(basePath, filename, access, err);
if (!success) {
#ifdef _WIN32
ERROR_LOG(FILESYS, "DirectoryFileSystem::OpenFile: FAILED, %i - access = %i", GetLastError(), (int)access);
#else
ERROR_LOG(FILESYS, "DirectoryFileSystem::OpenFile: FAILED, %i - access = %i", errno, (int)access);
#endif
//wwwwaaaaahh!!
return err;
} else {
#ifdef _WIN32
if (access & FILEACCESS_APPEND)
entry.hFile.Seek(0,FILEMOVE_END);
#endif
u32 newHandle = hAlloc->GetNewHandle();
entry.guestFilename = filename;
entry.access = access;
entries[newHandle] = entry;
return newHandle;
}
}
void DirectoryFileSystem::CloseFile(u32 handle) {
EntryMap::iterator iter = entries.find(handle);
if (iter != entries.end()) {
hAlloc->FreeHandle(handle);
iter->second.hFile.Close();
entries.erase(iter);
} else {
//This shouldn't happen...
ERROR_LOG(FILESYS,"Cannot close file that hasn't been opened: %08x", handle);
}
}
bool DirectoryFileSystem::OwnsHandle(u32 handle) {
EntryMap::iterator iter = entries.find(handle);
return (iter != entries.end());
}
int DirectoryFileSystem::Ioctl(u32 handle, u32 cmd, u32 indataPtr, u32 inlen, u32 outdataPtr, u32 outlen, int &usec) {
return SCE_KERNEL_ERROR_ERRNO_FUNCTION_NOT_SUPPORTED;
}
int DirectoryFileSystem::DevType(u32 handle) {
return PSP_DEV_TYPE_FILE;
}
size_t DirectoryFileSystem::ReadFile(u32 handle, u8 *pointer, s64 size) {
int ignored;
return ReadFile(handle, pointer, size, ignored);
}
size_t DirectoryFileSystem::ReadFile(u32 handle, u8 *pointer, s64 size, int &usec) {
EntryMap::iterator iter = entries.find(handle);
if (iter != entries.end()) {
if (size < 0) {
ERROR_LOG_REPORT(FILESYS, "Invalid read for %lld bytes from disk %s", size, iter->second.guestFilename.c_str());
return 0;
}
size_t bytesRead = iter->second.hFile.Read(pointer,size);
return bytesRead;
} else {
//This shouldn't happen...
ERROR_LOG(FILESYS,"Cannot read file that hasn't been opened: %08x", handle);
return 0;
}
}
size_t DirectoryFileSystem::WriteFile(u32 handle, const u8 *pointer, s64 size) {
int ignored;
return WriteFile(handle, pointer, size, ignored);
}
size_t DirectoryFileSystem::WriteFile(u32 handle, const u8 *pointer, s64 size, int &usec) {
EntryMap::iterator iter = entries.find(handle);
if (iter != entries.end())
{
size_t bytesWritten = iter->second.hFile.Write(pointer,size);
return bytesWritten;
} else {
//This shouldn't happen...
ERROR_LOG(FILESYS,"Cannot write to file that hasn't been opened: %08x", handle);
return 0;
}
}
size_t DirectoryFileSystem::SeekFile(u32 handle, s32 position, FileMove type) {
EntryMap::iterator iter = entries.find(handle);
if (iter != entries.end()) {
return iter->second.hFile.Seek(position,type);
} else {
//This shouldn't happen...
ERROR_LOG(FILESYS,"Cannot seek in file that hasn't been opened: %08x", handle);
return 0;
}
}
PSPFileInfo DirectoryFileSystem::GetFileInfo(std::string filename) {
PSPFileInfo x;
x.name = filename;
std::string fullName = GetLocalPath(filename);
if (!File::Exists(fullName)) {
#if HOST_IS_CASE_SENSITIVE
if (! FixPathCase(basePath,filename, FPC_FILE_MUST_EXIST))
return x;
fullName = GetLocalPath(filename);
if (! File::Exists(fullName))
return x;
#else
return x;
#endif
}
x.type = File::IsDirectory(fullName) ? FILETYPE_DIRECTORY : FILETYPE_NORMAL;
x.exists = true;
if (x.type != FILETYPE_DIRECTORY) {
File::FileDetails details;
if (!File::GetFileDetails(fullName, &details)) {
ERROR_LOG(FILESYS, "DirectoryFileSystem::GetFileInfo: GetFileDetails failed: %s", fullName.c_str());
x.size = 0;
x.access = 0;
memset(&x.atime, 0, sizeof(x.atime));
memset(&x.ctime, 0, sizeof(x.ctime));
memset(&x.mtime, 0, sizeof(x.mtime));
} else {
x.size = details.size;
x.access = details.access;
time_t atime = details.atime;
time_t ctime = details.ctime;
time_t mtime = details.mtime;
localtime_r((time_t*)&atime, &x.atime);
localtime_r((time_t*)&ctime, &x.ctime);
localtime_r((time_t*)&mtime, &x.mtime);
}
}
return x;
}
bool DirectoryFileSystem::GetHostPath(const std::string &inpath, std::string &outpath) {
outpath = GetLocalPath(inpath);
return true;
}
#ifdef _WIN32
#define FILETIME_FROM_UNIX_EPOCH_US 11644473600000000ULL
static void tmFromFiletime(tm &dest, FILETIME &src) {
u64 from_1601_us = (((u64) src.dwHighDateTime << 32ULL) + (u64) src.dwLowDateTime) / 10ULL;
u64 from_1970_us = from_1601_us - FILETIME_FROM_UNIX_EPOCH_US;
time_t t = (time_t) (from_1970_us / 1000000UL);
localtime_r(&t, &dest);
}
#endif
std::vector<PSPFileInfo> DirectoryFileSystem::GetDirListing(std::string path) {
std::vector<PSPFileInfo> myVector;
#ifdef _WIN32
WIN32_FIND_DATA findData;
HANDLE hFind;
std::string w32path = GetLocalPath(path) + "\\*.*";
hFind = FindFirstFile(ConvertUTF8ToWString(w32path).c_str(), &findData);
if (hFind == INVALID_HANDLE_VALUE) {
return myVector; //the empty list
}
while (true) {
PSPFileInfo entry;
if (findData.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY)
entry.type = FILETYPE_DIRECTORY;
else
entry.type = FILETYPE_NORMAL;
// TODO: Make this more correct?
entry.access = entry.type == FILETYPE_NORMAL ? 0666 : 0777;
// TODO: is this just for .. or all subdirectories? Need to add a directory to the test
// to find out. Also why so different than the old test results?
if (!wcscmp(findData.cFileName, L"..") )
entry.size = 4096;
else
entry.size = findData.nFileSizeLow | ((u64)findData.nFileSizeHigh<<32);
entry.name = ConvertWStringToUTF8(findData.cFileName);
tmFromFiletime(entry.atime, findData.ftLastAccessTime);
tmFromFiletime(entry.ctime, findData.ftCreationTime);
tmFromFiletime(entry.mtime, findData.ftLastWriteTime);
myVector.push_back(entry);
int retval = FindNextFile(hFind, &findData);
if (!retval)
break;
}
FindClose(hFind);
#else
dirent *dirp;
std::string localPath = GetLocalPath(path);
DIR *dp = opendir(localPath.c_str());
#if HOST_IS_CASE_SENSITIVE
if (dp == NULL && FixPathCase(basePath,path, FPC_FILE_MUST_EXIST)) {
// May have failed due to case sensitivity, try again
localPath = GetLocalPath(path);
dp = opendir(localPath.c_str());
}
#endif
if (dp == NULL) {
ERROR_LOG(FILESYS,"Error opening directory %s\n",path.c_str());
return myVector;
}
while ((dirp = readdir(dp)) != NULL) {
PSPFileInfo entry;
struct stat s;
std::string fullName = GetLocalPath(path) + "/"+dirp->d_name;
stat(fullName.c_str(), &s);
if (S_ISDIR(s.st_mode))
entry.type = FILETYPE_DIRECTORY;
else
entry.type = FILETYPE_NORMAL;
entry.access = s.st_mode & 0x1FF;
entry.name = dirp->d_name;
entry.size = s.st_size;
localtime_r((time_t*)&s.st_atime,&entry.atime);
localtime_r((time_t*)&s.st_ctime,&entry.ctime);
localtime_r((time_t*)&s.st_mtime,&entry.mtime);
myVector.push_back(entry);
}
closedir(dp);
#endif
return myVector;
}
u64 DirectoryFileSystem::FreeSpace(const std::string &path) {
uint64_t result = 0;
if (free_disk_space(GetLocalPath(path), result)) {
return result;
}
#if HOST_IS_CASE_SENSITIVE
std::string fixedCase = path;
if (FixPathCase(basePath, fixedCase, FPC_FILE_MUST_EXIST)) {
// May have failed due to case sensitivity, try again.
if (free_disk_space(GetLocalPath(fixedCase), result)) {
return result;
}
}
#endif
// Just assume they're swimming in free disk space if we don't know otherwise.
return std::numeric_limits<u64>::max();
}
void DirectoryFileSystem::DoState(PointerWrap &p) {
auto s = p.Section("DirectoryFileSystem", 0, 2);
if (!s)
return;
// Savestate layout:
// u32: number of entries
// per-entry:
// u32: handle number
// std::string filename (in guest's terms, untranslated)
// enum FileAccess file access mode
// u32 seek position
// s64 current truncate position (v2+ only)
u32 num = (u32) entries.size();
p.Do(num);
if (p.mode == p.MODE_READ) {
CloseAll();
u32 key;
OpenFileEntry entry;
for (u32 i = 0; i < num; i++) {
p.Do(key);
p.Do(entry.guestFilename);
p.Do(entry.access);
u32 err;
if (!entry.hFile.Open(basePath,entry.guestFilename,entry.access, err)) {
ERROR_LOG(FILESYS, "Failed to reopen file while loading state: %s", entry.guestFilename.c_str());
continue;
}
u32 position;
p.Do(position);
if (position != entry.hFile.Seek(position, FILEMOVE_BEGIN)) {
ERROR_LOG(FILESYS, "Failed to restore seek position while loading state: %s", entry.guestFilename.c_str());
continue;
}
if (s >= 2) {
p.Do(entry.hFile.needsTrunc_);
}
entries[key] = entry;
}
} else {
for (auto iter = entries.begin(); iter != entries.end(); ++iter) {
u32 key = iter->first;
p.Do(key);
p.Do(iter->second.guestFilename);
p.Do(iter->second.access);
u32 position = (u32)iter->second.hFile.Seek(0, FILEMOVE_CURRENT);
p.Do(position);
p.Do(iter->second.hFile.needsTrunc_);
}
}
}
VFSFileSystem::VFSFileSystem(IHandleAllocator *_hAlloc, std::string _basePath) : basePath(_basePath) {
hAlloc = _hAlloc;
}
VFSFileSystem::~VFSFileSystem() {
for (auto iter = entries.begin(); iter != entries.end(); ++iter) {
delete [] iter->second.fileData;
}
entries.clear();
}
std::string VFSFileSystem::GetLocalPath(std::string localPath) {
return basePath + localPath;
}
bool VFSFileSystem::MkDir(const std::string &dirname) {
// NOT SUPPORTED - READ ONLY
return false;
}
bool VFSFileSystem::RmDir(const std::string &dirname) {
// NOT SUPPORTED - READ ONLY
return false;
}
int VFSFileSystem::RenameFile(const std::string &from, const std::string &to) {
// NOT SUPPORTED - READ ONLY
return -1;
}
bool VFSFileSystem::RemoveFile(const std::string &filename) {
// NOT SUPPORTED - READ ONLY
return false;
}
u32 VFSFileSystem::OpenFile(std::string filename, FileAccess access, const char *devicename) {
if (access != FILEACCESS_READ) {
ERROR_LOG(FILESYS, "VFSFileSystem only supports plain reading");
return 0;
}
std::string fullName = GetLocalPath(filename);
const char *fullNameC = fullName.c_str();
DEBUG_LOG(FILESYS,"VFSFileSystem actually opening %s (%s)", fullNameC, filename.c_str());
size_t size;
u8 *data = VFSReadFile(fullNameC, &size);
if (!data) {
ERROR_LOG(FILESYS, "VFSFileSystem failed to open %s", filename.c_str());
return 0;
}
OpenFileEntry entry;
entry.fileData = data;
entry.size = size;
entry.seekPos = 0;
u32 newHandle = hAlloc->GetNewHandle();
entries[newHandle] = entry;
return newHandle;
}
PSPFileInfo VFSFileSystem::GetFileInfo(std::string filename) {
PSPFileInfo x;
x.name = filename;
std::string fullName = GetLocalPath(filename);
FileInfo fo;
if (VFSGetFileInfo(fullName.c_str(), &fo)) {
x.exists = fo.exists;
if (x.exists) {
x.size = fo.size;
x.type = fo.isDirectory ? FILETYPE_DIRECTORY : FILETYPE_NORMAL;
}
} else {
x.exists = false;
}
return x;
}
void VFSFileSystem::CloseFile(u32 handle) {
EntryMap::iterator iter = entries.find(handle);
if (iter != entries.end()) {
delete [] iter->second.fileData;
entries.erase(iter);
} else {
//This shouldn't happen...
ERROR_LOG(FILESYS,"Cannot close file that hasn't been opened: %08x", handle);
}
}
bool VFSFileSystem::OwnsHandle(u32 handle) {
EntryMap::iterator iter = entries.find(handle);
return (iter != entries.end());
}
int VFSFileSystem::Ioctl(u32 handle, u32 cmd, u32 indataPtr, u32 inlen, u32 outdataPtr, u32 outlen, int &usec) {
return SCE_KERNEL_ERROR_ERRNO_FUNCTION_NOT_SUPPORTED;
}
int VFSFileSystem::DevType(u32 handle) {
return PSP_DEV_TYPE_FILE;
}
size_t VFSFileSystem::ReadFile(u32 handle, u8 *pointer, s64 size) {
int ignored;
return ReadFile(handle, pointer, size, ignored);
}
size_t VFSFileSystem::ReadFile(u32 handle, u8 *pointer, s64 size, int &usec) {
DEBUG_LOG(FILESYS,"VFSFileSystem::ReadFile %08x %p %i", handle, pointer, (u32)size);
EntryMap::iterator iter = entries.find(handle);
if (iter != entries.end())
{
size_t bytesRead = size;
memcpy(pointer, iter->second.fileData + iter->second.seekPos, size);
iter->second.seekPos += size;
return bytesRead;
} else {
ERROR_LOG(FILESYS,"Cannot read file that hasn't been opened: %08x", handle);
return 0;
}
}
size_t VFSFileSystem::WriteFile(u32 handle, const u8 *pointer, s64 size) {
int ignored;
return WriteFile(handle, pointer, size, ignored);
}
size_t VFSFileSystem::WriteFile(u32 handle, const u8 *pointer, s64 size, int &usec) {
// NOT SUPPORTED - READ ONLY
return 0;
}
size_t VFSFileSystem::SeekFile(u32 handle, s32 position, FileMove type) {
EntryMap::iterator iter = entries.find(handle);
if (iter != entries.end()) {
switch (type) {
case FILEMOVE_BEGIN: iter->second.seekPos = position; break;
case FILEMOVE_CURRENT: iter->second.seekPos += position; break;
case FILEMOVE_END: iter->second.seekPos = iter->second.size + position; break;
}
return iter->second.seekPos;
} else {
//This shouldn't happen...
ERROR_LOG(FILESYS,"Cannot seek in file that hasn't been opened: %08x", handle);
return 0;
}
}
bool VFSFileSystem::GetHostPath(const std::string &inpath, std::string &outpath) {
// NOT SUPPORTED
return false;
}
std::vector<PSPFileInfo> VFSFileSystem::GetDirListing(std::string path) {
std::vector<PSPFileInfo> myVector;
// TODO
return myVector;
}
void VFSFileSystem::DoState(PointerWrap &p) {
// Note: used interchangeably with DirectoryFileSystem for flash0:, so we use the same name.
auto s = p.Section("DirectoryFileSystem", 0, 2);
if (!s)
return;
u32 num = (u32) entries.size();
p.Do(num);
if (num != 0) {
p.SetError(p.ERROR_WARNING);
ERROR_LOG(FILESYS, "FIXME: Open files during savestate, could go badly.");
}
}
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