1 files changed, 224 insertions, 0 deletions

diff --git a/src/common/file_util.h b/src/common/file_util.h
new file mode 100644
index 000000000..f4ef949d8
--- /dev/null
+++ b/src/common/file_util.h
@@ -0,0 +1,224 @@
+// Copyright 2013 Dolphin Emulator Project
+// Licensed under GPLv2
+// Refer to the license.txt file included.
+
+
+#ifndef _FILEUTIL_H_
+#define _FILEUTIL_H_
+
+#include <fstream>
+#include <cstdio>
+#include <string>
+#include <vector>
+#include <string.h>
+
+#include "common.h"
+#include "string_util.h"
+
+// User directory indices for GetUserPath
+enum {
+        D_USER_IDX,
+        D_ROOT_IDX,
+        D_CONFIG_IDX,
+        D_GAMECONFIG_IDX,
+        D_MAPS_IDX,
+        D_CACHE_IDX,
+        D_SHADERCACHE_IDX,
+        D_SHADERS_IDX,
+        D_STATESAVES_IDX,
+        D_SCREENSHOTS_IDX,
+        D_HIRESTEXTURES_IDX,
+        D_DUMP_IDX,
+        D_DUMPFRAMES_IDX,
+        D_DUMPAUDIO_IDX,
+        D_DUMPTEXTURES_IDX,
+        D_DUMPDSP_IDX,
+        D_LOGS_IDX,
+        D_SYSCONF_IDX,
+        F_EMUCONFIG_IDX,
+        F_DEBUGGERCONFIG_IDX,
+        F_LOGGERCONFIG_IDX,
+        F_MAINLOG_IDX,
+        F_RAMDUMP_IDX,
+        F_ARAMDUMP_IDX,
+        F_SYSCONF_IDX,
+        NUM_PATH_INDICES
+};
+
+namespace File
+{
+
+// FileSystem tree node/ 
+struct FSTEntry
+{
+        bool isDirectory;
+        u64 size;                                               // file length or number of entries from children
+        std::string physicalName;               // name on disk
+        std::string virtualName;                // name in FST names table
+        std::vector<FSTEntry> children;
+};
+
+// Returns true if file filename exists
+bool Exists(const std::string &filename);
+
+// Returns true if filename is a directory
+bool IsDirectory(const std::string &filename);
+
+// Returns the size of filename (64bit)
+u64 GetSize(const std::string &filename);
+
+// Overloaded GetSize, accepts file descriptor
+u64 GetSize(const int fd);
+
+// Overloaded GetSize, accepts FILE*
+u64 GetSize(FILE *f);
+
+// Returns true if successful, or path already exists.
+bool CreateDir(const std::string &filename);
+
+// Creates the full path of fullPath returns true on success
+bool CreateFullPath(const std::string &fullPath);
+
+// Deletes a given filename, return true on success
+// Doesn't supports deleting a directory
+bool Delete(const std::string &filename);
+
+// Deletes a directory filename, returns true on success
+bool DeleteDir(const std::string &filename);
+
+// renames file srcFilename to destFilename, returns true on success 
+bool Rename(const std::string &srcFilename, const std::string &destFilename);
+
+// copies file srcFilename to destFilename, returns true on success 
+bool Copy(const std::string &srcFilename, const std::string &destFilename);
+
+// creates an empty file filename, returns true on success 
+bool CreateEmptyFile(const std::string &filename);
+
+// Scans the directory tree gets, starting from _Directory and adds the
+// results into parentEntry. Returns the number of files+directories found
+u32 ScanDirectoryTree(const std::string &directory, FSTEntry& parentEntry);
+
+// deletes the given directory and anything under it. Returns true on success.
+bool DeleteDirRecursively(const std::string &directory);
+
+// Returns the current directory
+std::string GetCurrentDir();
+
+// Create directory and copy contents (does not overwrite existing files)
+void CopyDir(const std::string &source_path, const std::string &dest_path);
+
+// Set the current directory to given directory
+bool SetCurrentDir(const std::string &directory);
+
+// Returns a pointer to a string with a Dolphin data dir in the user's home
+// directory. To be used in "multi-user" mode (that is, installed).
+const std::string& GetUserPath(const unsigned int DirIDX, const std::string &newPath="");
+
+// probably doesn't belong here
+//std::string GetThemeDir(const std::string& theme_name);
+
+// Returns the path to where the sys file are
+std::string GetSysDirectory();
+
+#ifdef __APPLE__
+std::string GetBundleDirectory();
+#endif
+
+#ifdef _WIN32
+std::string &GetExeDirectory();
+#endif
+
+bool WriteStringToFile(bool text_file, const std::string &str, const char *filename);
+bool ReadFileToString(bool text_file, const char *filename, std::string &str);
+
+// simple wrapper for cstdlib file functions to
+// hopefully will make error checking easier
+// and make forgetting an fclose() harder
+class IOFile : public NonCopyable
+{
+public:
+        IOFile();
+        IOFile(std::FILE* file);
+        IOFile(const std::string& filename, const char openmode[]);
+
+        ~IOFile();
+        
+        IOFile(IOFile&& other);
+        IOFile& operator=(IOFile&& other);
+        
+        void Swap(IOFile& other);
+
+        bool Open(const std::string& filename, const char openmode[]);
+        bool Close();
+
+        template <typename T>
+        bool ReadArray(T* data, size_t length)
+        {
+                if (!IsOpen() || length != std::fread(data, sizeof(T), length, m_file))
+                        m_good = false;
+
+                return m_good;
+        }
+
+        template <typename T>
+        bool WriteArray(const T* data, size_t length)
+        {
+                if (!IsOpen() || length != std::fwrite(data, sizeof(T), length, m_file))
+                        m_good = false;
+
+                return m_good;
+        }
+
+        bool ReadBytes(void* data, size_t length)
+        {
+                return ReadArray(reinterpret_cast<char*>(data), length);
+        }
+
+        bool WriteBytes(const void* data, size_t length)
+        {
+                return WriteArray(reinterpret_cast<const char*>(data), length);
+        }
+
+        bool IsOpen() { return NULL != m_file; }
+
+        // m_good is set to false when a read, write or other function fails
+        bool IsGood() { return m_good; }
+        operator void*() { return m_good ? m_file : NULL; }
+
+        std::FILE* ReleaseHandle();
+
+        std::FILE* GetHandle() { return m_file; }
+
+        void SetHandle(std::FILE* file);
+
+        bool Seek(s64 off, int origin);
+        u64 Tell();
+        u64 GetSize();
+        bool Resize(u64 size);
+        bool Flush();
+
+        // clear error state
+        void Clear() { m_good = true; std::clearerr(m_file); }
+
+        std::FILE* m_file;
+        bool m_good;
+private:
+        IOFile(IOFile&);
+        IOFile& operator=(IOFile& other);
+};
+
+}  // namespace
+
+// To deal with Windows being dumb at unicode:
+template <typename T>
+void OpenFStream(T& fstream, const std::string& filename, std::ios_base::openmode openmode)
+{
+#ifdef _WIN32
+        fstream.open(UTF8ToTStr(filename).c_str(), openmode);
+#else
+        fstream.open(filename.c_str(), openmode);
+#endif
+}
+
+#endif