source: cpp/frams/virtfile/stringfile.h @ 287

// This file is a part of Framsticks SDK.  http://www.framsticks.com/
// Copyright (C) 1999-2015  Maciej Komosinski and Szymon Ulatowski.
// See LICENSE.txt for details.

#ifndef _STRINGFILE_H_
#define _STRINGFILE_H_

#include "virtfile.h"
#include <frams/util/sstring.h>

class StringFILE : public VirtFILE
{
protected:
        SString& str;
        long pos;
public:
        StringFILE(SString& s) :str(s), pos(0) {}
        size_t Vread(void *ptr, size_t size, size_t nmemb);
        size_t Vwrite(const void *ptr, size_t size, size_t nmemb) { str.append((const char*)ptr, (int)(size*nmemb)); return size*nmemb; }
        int Veof() { return pos >= str.len(); }
        int Vputc(int c) { str += (char)c; return c; }
        int Vputs(const char *s) { str.append(s, (int)strlen(s)); return 0; }
        int Vgetc();
        char *Vgets(char *s, int size);
        int Vseek(long offset, int whence);
        long Vtell() { return pos; }
        int Vflush() { return 0; }
};

/** this version owns the string object */
class StringFILE2 : public StringFILE
{
        SString string;
public:
        StringFILE2(const SString& s) :StringFILE(string), string(s) {}
        StringFILE2() :StringFILE(string) {}
        const SString& getString() { return string; }
};

class StringFileSystem : public VirtFileSystem
{
public:
        VirtFileSystem *chain;
        StringFileSystem(VirtFileSystem *_chain = NULL) :chain(_chain) {}
        VirtFILE *Vfopen(const char* path, const char*mode);
        int Vfexists(const char* path);
        VirtDIR *Vopendir(const char* path);
        static const char PREFIX[];
        static bool isStringPath(const char* path);
};

#endif