~drizzle-trunk/drizzle/development

/* Copyright (c) 2010 PrimeBase Technologies GmbH, Germany

 *

 * PrimeBase Media Stream for MySQL

 *

 * 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; either version 2 of the License, or

 * (at your option) any later version.

 *

 * 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 for more details.

 *

 * You should have received a copy of the GNU General Public License

 * along with this program; if not, write to the Free Software

 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA

 *

 * Author: Barry Leslie

 *

 * 2010-02-05

 *

 * CORE SYSTEM:

 * Basic system specific file I/O classes.

 * The classes in this header are defined in CSSys_unix.cc and  CSSys_win.cc

 *

 */

#ifndef __CSSYSFILE_H__

#define __CSSYSFILE_H__

#ifdef OS_WINDOWS

#define INVALID_DIR_HANDLE (INVALID_HANDLE_VALUE)

#define INVALID_FILE_HANDLE (INVALID_HANDLE_VALUE)

#else

#include <dirent.h>

#define INVALID_DIR_HANDLE (NULL)

#define INVALID_FILE_HANDLE (-1)

#endif

#include "CSString.h"

#include "CSException.h"

#include "CSTime.h"

class CSSysDir {

public:

	CSSysDir(): 

		sd_path(NULL),

		sd_filter(NULL),

		sd_dir(INVALID_DIR_HANDLE){}

	~CSSysDir();

	void open();

	void close();

	bool next();

	bool entryIsFile();

	const char *entryName();

	void getEntryPath(char *path, size_t size);

	CSString *sd_path;

private:

	CSStringBuffer *sd_filter;

#ifdef OS_WINDOWS

	WIN32_FIND_DATAA sd_entry;

	HANDLE sd_dir;

#else

	struct dirent sd_entry;

	DIR *sd_dir;

#endif

};

class CSSysFile {

public:

	static bool isDirNotFound(CSException *e);

	static bool isFileNotFound(CSException *e);

	static bool isDirExists(CSException *e);

CSSysFile(): sf_path(NULL), sf_fh(INVALID_FILE_HANDLE){}

	~CSSysFile(){ sf_close();}

	bool fs_isOpen() { return ( sf_fh != INVALID_FILE_HANDLE);}

	void sf_open(const char *path, bool readonly, bool create);

	void sf_close();

	size_t sf_pread(void *data, size_t size, off64_t offset);

	void sf_pwrite(const void *data, size_t size, off64_t offset);

	off64_t sf_getEOF();

	void sf_setEOF(off64_t offset);

	void sf_sync();

	void sf_lock(bool shared);

	void sf_unlock();

private:

	CSString *sf_path;

#ifdef OS_WINDOWS

	HANDLE	sf_fh;

#else

	int		sf_fh;

#endif

};

class CSSys {

	public:

	static bool sys_exists(const char *path);

	static void sys_makeDir(const char *path);

	static void sys_removeDir(const char *path);

	static void sys_removeFile(const char *path);

	static void sys_rename(const char *old_path, const char *new_path);

	static void sys_stat(const char *path, bool *is_dir, off64_t *size, CSTime *mod_time);

	static bool sys_isLink(const char *path);

	static void sys_getcwd(char *path, size_t size);

	static void sys_setcwd(const char *path);

	static uint32_t sys_getpid();

	static bool sys_isAlive(uint32_t pid);

};

#endif