/usr/include/boinc/mfile.h is in boinc-dev 7.0.24+dfsg-1.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 | // This file is part of BOINC.
// http://boinc.berkeley.edu
// Copyright (C) 2008 University of California
//
// BOINC 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 3 of the License, or (at your option) any later version.
//
// BOINC 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.
//
// You should have received a copy of the GNU Lesser General Public License
// along with BOINC. If not, see <http://www.gnu.org/licenses/>.
#ifndef _MFILE_
#define _MFILE_
#include <cstdio>
#include <cstdarg>
// MFILE provides memory-buffered output with a FILE-type interface.
// BOINC uses this in a couple of places:
// 1) in the GUI RPC system (since in Windows you can't fdopen a socket)
// 2) in the API, to support a primitive form of checkpointing:
// Write all your output (and restart file) to MFILEs.
// The output is buffered in memory.
// Then close or flush all the MFILEs;
// all the buffers will be flushed to disk, almost atomically.
class MFILE {
char* buf; // NULL-terminated
int len;
FILE* f;
public:
MFILE();
~MFILE();
int open(const char* path, const char* mode);
int _putchar(char);
int puts(const char*);
int vprintf(const char* format, va_list);
int printf(const char* format, ...);
size_t write(const void *, size_t size, size_t nitems);
int close();
int flush();
long tell() const;
void get_buf(char*&, int&);
// get the MFILE's internal buffer and its length.
// The caller assumes ownership of the buffer and must free() it.
// The MFILE's buffer is set to empty
};
#endif
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