boinc/lib/miofile.h

80 lines
2.2 KiB
C++

// Berkeley Open Infrastructure for Network Computing
// http://boinc.berkeley.edu
// Copyright (C) 2005 University of California
//
// This is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License as published by the Free Software Foundation;
// either version 2.1 of the License, or (at your option) any later version.
//
// This software 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 Lesser General Public License for more details.
//
// To view the GNU Lesser General Public License visit
// http://www.gnu.org/copyleft/lesser.html
// or write to the Free Software Foundation, Inc.,
// 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
#ifndef _MIOFILE_
#define _MIOFILE_
#ifndef _WIN32
#include <string>
#endif
#include "mfile.h"
#ifdef _USING_FCGI_
#include "fcgi_stdio.h"
#endif
// MIOFILE lets you do formatted I/O to either a FILE or a memory buffer,
// depending on how you initialize it.
//
// output:
// init_file(): output goes to the FILE* that you specify
// init_mfile(): output goes to an MFILE (i.e. a memory buffer);
// you can call MFILE::get_buf() to get the results
// input:
// init_file(): input comes from the FILE* that you specify
// init_buf(): input comes from the buffer you specify.
// This string is not modified.
//
// Why is this here? Because on Windows (9x, maybe all)
// you can't do fdopen() on a socket.
class MIOFILE {
MFILE* mf;
FILE* f;
char* wbuf;
int len;
const char* buf;
public:
MIOFILE();
~MIOFILE();
void init_mfile(MFILE*);
void init_file(FILE*);
void init_buf_read(const char*);
void init_buf_write(char*, int len);
int printf(const char* format, ...);
char* fgets(char*, int);
int _ungetc(int);
inline int _getc() {
if (f) {
#ifdef _USING_FCGI_
return FCGI_fgetc(f);
#else
return getc(f);
#endif
}
return (*buf)?(*buf++):EOF;
}
};
extern int copy_element_contents(MIOFILE& in, const char* end_tag, char* p, int len);
extern int copy_element_contents(MIOFILE& in, const char* end_tag, std::string&);
#endif