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ppsspp file system module - currently unused

pull/15/merge
ShizZy 12 years ago
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a5b31dea56
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80b85ee7e6
3 changed files with 1008 additions and 0 deletions
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  1. 138
      src/core/src/file_sys/file_sys.h
  2. 712
      src/core/src/file_sys/file_sys_directory.cpp
  3. 158
      src/core/src/file_sys/file_sys_directory.h

138
src/core/src/file_sys/file_sys.h
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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/.
#pragma once
#include "common.h"
#include "chunk_file.h"
enum FileAccess {
FILEACCESS_NONE=0,
FILEACCESS_READ=1,
FILEACCESS_WRITE=2,
FILEACCESS_APPEND=4,
FILEACCESS_CREATE=8
};
enum FileMove {
FILEMOVE_BEGIN=0,
FILEMOVE_CURRENT=1,
FILEMOVE_END=2
};
enum FileType {
FILETYPE_NORMAL=1,
FILETYPE_DIRECTORY=2
};
class IHandleAllocator {
public:
virtual ~IHandleAllocator() {}
virtual u32 GetNewHandle() = 0;
virtual void FreeHandle(u32 handle) = 0;
};
class SequentialHandleAllocator : public IHandleAllocator {
public:
SequentialHandleAllocator() : handle_(1) {}
virtual u32 GetNewHandle() { return handle_++; }
virtual void FreeHandle(u32 handle) {}
private:
int handle_;
};
struct PSPFileInfo {
PSPFileInfo()
: size(0), access(0), exists(false), type(FILETYPE_NORMAL), isOnSectorSystem(false), startSector(0), numSectors(0) {}
void DoState(PointerWrap &p) {
auto s = p.Section("PSPFileInfo", 1);
if (!s)
return;
p.Do(name);
p.Do(size);
p.Do(access);
p.Do(exists);
p.Do(type);
p.Do(atime);
p.Do(ctime);
p.Do(mtime);
p.Do(isOnSectorSystem);
p.Do(startSector);
p.Do(numSectors);
p.Do(sectorSize);
}
std::string name;
s64 size;
u32 access; //unix 777
bool exists;
FileType type;
tm atime;
tm ctime;
tm mtime;
bool isOnSectorSystem;
u32 startSector;
u32 numSectors;
u32 sectorSize;
};
class IFileSystem {
public:
virtual ~IFileSystem() {}
virtual void DoState(PointerWrap &p) = 0;
virtual std::vector<PSPFileInfo> GetDirListing(std::string path) = 0;
virtual u32 OpenFile(std::string filename, FileAccess access, const char *devicename=NULL) = 0;
virtual void CloseFile(u32 handle) = 0;
virtual size_t ReadFile(u32 handle, u8 *pointer, s64 size) = 0;
virtual size_t WriteFile(u32 handle, const u8 *pointer, s64 size) = 0;
virtual size_t SeekFile(u32 handle, s32 position, FileMove type) = 0;
virtual PSPFileInfo GetFileInfo(std::string filename) = 0;
virtual bool OwnsHandle(u32 handle) = 0;
virtual bool MkDir(const std::string &dirname) = 0;
virtual bool RmDir(const std::string &dirname) = 0;
virtual int RenameFile(const std::string &from, const std::string &to) = 0;
virtual bool RemoveFile(const std::string &filename) = 0;
virtual bool GetHostPath(const std::string &inpath, std::string &outpath) = 0;
};
class EmptyFileSystem : public IFileSystem {
public:
virtual void DoState(PointerWrap &p) {}
std::vector<PSPFileInfo> GetDirListing(std::string path) {std::vector<PSPFileInfo> vec; return vec;}
u32 OpenFile(std::string filename, FileAccess access, const char *devicename=NULL) {return 0;}
void CloseFile(u32 handle) {}
size_t ReadFile(u32 handle, u8 *pointer, s64 size) {return 0;}
size_t WriteFile(u32 handle, const u8 *pointer, s64 size) {return 0;}
size_t SeekFile(u32 handle, s32 position, FileMove type) {return 0;}
PSPFileInfo GetFileInfo(std::string filename) {PSPFileInfo f; return f;}
bool OwnsHandle(u32 handle) {return false;}
virtual bool MkDir(const std::string &dirname) {return false;}
virtual bool RmDir(const std::string &dirname) {return false;}
virtual int RenameFile(const std::string &from, const std::string &to) {return -1;}
virtual bool RemoveFile(const std::string &filename) {return false;}
virtual bool GetHostPath(const std::string &inpath, std::string &outpath) {return false;}
};

712
src/core/src/file_sys/file_sys_directory.cpp
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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 "chunk_file.h"
#include "file_util.h"
#include "file_sys_directory.h"
//#include "ISOFileSystem.h"
//#include "Core/HLE/sceKernel.h"
//#include "file/zip_read.h"
//#include "util/text/utf8.h"
#ifdef _WIN32
//#include "Common/CommonWindows.h"
#include <sys/stat.h>
#else
#include <dirent.h>
#include <unistd.h>
#include <sys/stat.h>
#include <ctype.h>
#endif
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) {
std::string fullName = GetLocalPath(basePath,fileName);
INFO_LOG(FILESYS, "Actually opening %s", fullName.c_str());
//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(fullName.c_str(), desired, sharemode, 0, openmode, 0, 0);
bool success = hFile != INVALID_HANDLE_VALUE;
#else
// Convert flags in access parameter to fopen access mode
const char *mode = NULL;
if (access & FILEACCESS_APPEND) {
if (access & FILEACCESS_READ)
mode = "ab+"; // append+read, create if needed
else
mode = "ab"; // append only, create if needed
} else if (access & FILEACCESS_WRITE) {
if (access & FILEACCESS_READ) {
// FILEACCESS_CREATE is ignored for read only, write only, and append
// because C++ standard fopen's nonexistant file creation can only be
// customized for files opened read+write
if (access & FILEACCESS_CREATE)
mode = "wb+"; // read+write, create if needed
else
mode = "rb+"; // read+write, but don't create
} else {
mode = "wb"; // write only, create if needed
}
} else { // neither write nor append, so default to read only
mode = "rb"; // read only, don't create
}
hFile = fopen(fullName.c_str(), mode);
bool success = hFile != 0;
#endif
#if HOST_IS_CASE_SENSITIVE
if (!success &&
!(access & FILEACCESS_APPEND) &&
!(access & FILEACCESS_CREATE) &&
!(access & FILEACCESS_WRITE))
{
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 = fopen(fullNameC, mode);
success = hFile != 0;
#endif
}
#endif
return success;
}
size_t DirectoryFileHandle::Read(u8* pointer, s64 size)
{
size_t bytesRead = 0;
#ifdef _WIN32
::ReadFile(hFile, (LPVOID)pointer, (DWORD)size, (LPDWORD)&bytesRead, 0);
#else
bytesRead = fread(pointer, 1, size, hFile);
#endif
return bytesRead;
}
size_t DirectoryFileHandle::Write(const u8* pointer, s64 size)
{
size_t bytesWritten = 0;
#ifdef _WIN32
::WriteFile(hFile, (LPVOID)pointer, (DWORD)size, (LPDWORD)&bytesWritten, 0);
#else
bytesWritten = fwrite(pointer, 1, size, hFile);
#endif
return bytesWritten;
}
size_t DirectoryFileHandle::Seek(s32 position, FileMove type)
{
#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;
}
fseek(hFile, position, moveMethod);
return ftell(hFile);
#endif
}
void DirectoryFileHandle::Close()
{
#ifdef _WIN32
if (hFile != (HANDLE)-1)
CloseHandle(hFile);
#else
if (hFile != 0)
fclose(hFile);
#endif
}
DirectoryFileSystem::DirectoryFileSystem(IHandleAllocator *_hAlloc, std::string _basePath) : basePath(_basePath) {
File::CreateFullPath(basePath);
hAlloc = _hAlloc;
}
DirectoryFileSystem::~DirectoryFileSystem() {
for (auto iter = entries.begin(); iter != entries.end(); ++iter) {
iter->second.hFile.Close();
}
}
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(fullFrom.c_str(), fullToC) == 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 : 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;
bool success = entry.hFile.Open(basePath,filename,access);
if (!success) {
#ifdef _WIN32
ERROR_LOG(FILESYS, "DirectoryFileSystem::OpenFile: FAILED, %i - access = %i", GetLastError(), (int)access);
#else
ERROR_LOG(FILESYS, "DirectoryFileSystem::OpenFile: FAILED, access = %i", (int)access);
#endif
//wwwwaaaaahh!!
return 0;
} else {
#ifdef _WIN32
if (access & FILEACCESS_APPEND)
entry.hFile.Seek(0,FILEMOVE_END);
#endif
u32 newHandle = hAlloc->GetNewHandle();
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());
}
size_t DirectoryFileSystem::ReadFile(u32 handle, u8 *pointer, s64 size) {
EntryMap::iterator iter = entries.find(handle);
if (iter != entries.end())
{
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) {
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)
{
#ifdef _WIN32
struct _stat64i32 s;
_wstat64i32(fullName.c_str(), &s);
#else
struct stat s;
stat(fullName.c_str(), &s);
#endif
x.size = File::GetSize(fullName);
x.access = s.st_mode & 0x1FF;
localtime_r((time_t*)&s.st_atime,&x.atime);
localtime_r((time_t*)&s.st_ctime,&x.ctime);
localtime_r((time_t*)&s.st_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;
}
#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;
}
void DirectoryFileSystem::DoState(PointerWrap &p) {
if (!entries.empty()) {
p.SetError(p.ERROR_WARNING);
ERROR_LOG(FILESYS, "FIXME: Open files during savestate, could go badly.");
}
}
VFSFileSystem::VFSFileSystem(IHandleAllocator *_hAlloc, std::string _basePath) : basePath(_basePath) {
INFO_LOG(FILESYS, "Creating VFS file system");
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();
INFO_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);
INFO_LOG(FILESYS,"Getting VFS file info %s (%s)", fullName.c_str(), filename.c_str());
FileInfo fo;
VFSGetFileInfo(fullName.c_str(), &fo);
x.exists = fo.exists;
if (x.exists) {
x.size = fo.size;
x.type = fo.isDirectory ? FILETYPE_DIRECTORY : FILETYPE_NORMAL;
}
INFO_LOG(FILESYS,"Got VFS file info: size = %i", (int)x.size);
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());
}
size_t VFSFileSystem::ReadFile(u32 handle, u8 *pointer, s64 size) {
INFO_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) {
// 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) {
if (!entries.empty()) {
p.SetError(p.ERROR_WARNING);
ERROR_LOG(FILESYS, "FIXME: Open files during savestate, could go badly.");
}
}

158
src/core/src/file_sys/file_sys_directory.h
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@ -0,0 +1,158 @@
// 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/.
#ifndef CORE_FILE_SYS_DIRECTORY_H_
#define CORE_FILE_SYS_DIRECTORY_H_
// TODO: Remove the Windows-specific code, FILE is fine there too.
#include <map>
#include "file_sys.h"
#ifdef _WIN32
typedef void * HANDLE;
#endif
#if defined(__APPLE__)
#if TARGET_OS_IPHONE
#define HOST_IS_CASE_SENSITIVE 1
#elif TARGET_IPHONE_SIMULATOR
#define HOST_IS_CASE_SENSITIVE 0
#else
// Mac OSX case sensitivity defaults off, but is user configurable (when
// creating a filesytem), so assume the worst:
#define HOST_IS_CASE_SENSITIVE 1
#endif
#elif defined(_WIN32) || defined(__SYMBIAN32__)
#define HOST_IS_CASE_SENSITIVE 0
#else // Android, Linux, BSD (and the rest?)
#define HOST_IS_CASE_SENSITIVE 1
#endif
#if HOST_IS_CASE_SENSITIVE
enum FixPathCaseBehavior {
FPC_FILE_MUST_EXIST, // all path components must exist (rmdir, move from)
FPC_PATH_MUST_EXIST, // all except the last one must exist - still tries to fix last one (fopen, move to)
FPC_PARTIAL_ALLOWED, // don't care how many exist (mkdir recursive)
};
bool FixPathCase(std::string& basePath, std::string &path, FixPathCaseBehavior behavior);
#endif
struct DirectoryFileHandle
{
#ifdef _WIN32
HANDLE hFile;
#else
FILE* hFile;
#endif
DirectoryFileHandle()
{
#ifdef _WIN32
hFile = (HANDLE)-1;
#else
hFile = 0;
#endif
}
std::string GetLocalPath(std::string& basePath, std::string localpath);
bool Open(std::string& basePath, std::string& fileName, FileAccess access);
size_t Read(u8* pointer, s64 size);
size_t Write(const u8* pointer, s64 size);
size_t Seek(s32 position, FileMove type);
void Close();
};
class DirectoryFileSystem : public IFileSystem {
public:
DirectoryFileSystem(IHandleAllocator *_hAlloc, std::string _basePath);
~DirectoryFileSystem();
void DoState(PointerWrap &p);
std::vector<PSPFileInfo> GetDirListing(std::string path);
u32 OpenFile(std::string filename, FileAccess access, const char *devicename=NULL);
void CloseFile(u32 handle);
size_t ReadFile(u32 handle, u8 *pointer, s64 size);
size_t WriteFile(u32 handle, const u8 *pointer, s64 size);
size_t SeekFile(u32 handle, s32 position, FileMove type);
PSPFileInfo GetFileInfo(std::string filename);
bool OwnsHandle(u32 handle);
bool MkDir(const std::string &dirname);
bool RmDir(const std::string &dirname);
int RenameFile(const std::string &from, const std::string &to);
bool RemoveFile(const std::string &filename);
bool GetHostPath(const std::string &inpath, std::string &outpath);
private:
struct OpenFileEntry {
DirectoryFileHandle hFile;
};
typedef std::map<u32, OpenFileEntry> EntryMap;
EntryMap entries;
std::string basePath;
IHandleAllocator *hAlloc;
// In case of Windows: Translate slashes, etc.
std::string GetLocalPath(std::string localpath);
};
// VFSFileSystem: Ability to map in Android APK paths as well! Does not support all features, only meant for fonts.
// Very inefficient - always load the whole file on open.
class VFSFileSystem : public IFileSystem {
public:
VFSFileSystem(IHandleAllocator *_hAlloc, std::string _basePath);
~VFSFileSystem();
void DoState(PointerWrap &p);
std::vector<PSPFileInfo> GetDirListing(std::string path);
u32 OpenFile(std::string filename, FileAccess access, const char *devicename=NULL);
void CloseFile(u32 handle);
size_t ReadFile(u32 handle, u8 *pointer, s64 size);
size_t WriteFile(u32 handle, const u8 *pointer, s64 size);
size_t SeekFile(u32 handle, s32 position, FileMove type);
PSPFileInfo GetFileInfo(std::string filename);
bool OwnsHandle(u32 handle);
bool MkDir(const std::string &dirname);
bool RmDir(const std::string &dirname);
int RenameFile(const std::string &from, const std::string &to);
bool RemoveFile(const std::string &filename);
bool GetHostPath(const std::string &inpath, std::string &outpath);
private:
struct OpenFileEntry {
u8 *fileData;
size_t size;
size_t seekPos;
};
typedef std::map<u32, OpenFileEntry> EntryMap;
EntryMap entries;
std::string basePath;
IHandleAllocator *hAlloc;
std::string GetLocalPath(std::string localpath);
};
#endif // CORE_FILE_SYS_DIRECTORY_H_
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