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// SPDX-FileCopyrightText: Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
// SPDX-License-Identifier: BSD-3-Clause
/**
This file contains routines for accessing the file system.
*/
#ifndef vtkParseSystem_h
#define vtkParseSystem_h
#include "vtkParseDepends.h"
#include "vtkParseString.h"
#include "vtkWrappingToolsModule.h"
#include <stdio.h> /* for FILE* */
/**
* Contains the paths to all files that have been discovered on the file
* system. This is used to accelerate searches for header files.
*/
typedef struct SystemInfo_
{
StringCache* Strings; /* to accelerate string allocation */
const char*** FileHashTable; /* paths to all discovered files */
const char*** DirHashTable; /* paths to all catalogued directories */
} SystemInfo;
/**
* An enum to identify the types of discovered files
*/
typedef enum system_filetype_t_
{
VTK_PARSE_NOFILE = 0,
VTK_PARSE_ISFILE = 1,
VTK_PARSE_ISDIR = 2
} system_filetype_t;
#ifdef __cplusplus
extern "C"
{
#endif
/**
* Check if a file with the given name exists and return its type:
* VTK_PARSE_ISDIR, VTK_PARSE_ISFILE, or VTK_PARSE_NOFILE if not found.
* This will cache results for the entire parent directory in order
* to accelerate future searches.
*/
VTKWRAPPINGTOOLS_EXPORT
system_filetype_t vtkParse_FileExists(SystemInfo* info, const char* name);
/**
* Free the memory that the SystemInfo uses to cache the files.
*/
VTKWRAPPINGTOOLS_EXPORT
void vtkParse_FreeFileCache(SystemInfo* info);
/**
* On Win32, this interprets fname as UTF8 and then calls wfopen().
* The returned handle must be freed with fclose().
*
* This variant does not add a dependency on the passed filename to any
* dependency tracking.
*/
VTKWRAPPINGTOOLS_EXPORT
FILE* vtkParse_FileOpenNoDependency(const char* fname, const char* mode);
/**
* On Win32, this interprets fname as UTF8 and then calls wfopen().
* The returned handle must be freed with fclose().
*/
VTKWRAPPINGTOOLS_EXPORT
FILE* vtkParse_FileOpen(const char* fname, const char* mode);
#ifdef __cplusplus
} /* extern "C" */
#endif
#endif
/* VTK-HeaderTest-Exclude: vtkParseSystem.h */
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