lua-osx/osx_dir.h

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2022-12-11 18:58:11 +01:00
// SPDX-License-Identifier: LGPL-3.0-or-later
/* Portable low level system directory access.
*
* Copyright: 2022, The DoubleFourteen Code Forge
* Author: Lorenzo Cogotti
*/
#ifndef DF_LUA_OSXDIR_H_
#define DF_LUA_OSXDIR_H_
#include "lua.h"
#ifdef _WIN32
#include <io.h>
typedef struct {
intptr_t dirh; // raw system directory handle
_Bool startflag; // whether data references the first directory entry
_Bool endflag; // whether we've made to the end of the directory
_Bool errflag; // whether last call encountered an error
struct _finddata_t data; // directory entry info
} *df_os_dirhn;
#ifdef DF_LUA_OSXLIB
#define DF_OSXLIB_API __declspec(dllexport)
#else
#define DF_OSXLIB_API __declspec(dllimport)
#endif
#else
#include <dirent.h>
typedef DIR *df_os_dirhn;
#define DF_OSXLIB_API
#endif
/* Open directory at 'path' (not NULL).
* Returns opened directory handle on success, NULL on failure (sets errno).
*/
DF_OSXLIB_API df_os_dirhn os_opendir(const char *path);
/* Read next entry from opened directory handle 'hn' (not NULL).
* Returns:
* - next entry filename on success.
* - NULL leaving errno unchanged when no more entries are available.
* - NULL and sets errno on failure.
*/
DF_OSXLIB_API char *os_readdir(df_os_dirhn hn);
/* Close opened directory handle 'hn' (not NULL). */
DF_OSXLIB_API void os_closedir(df_os_dirhn hn);
#endif