/usr/include/wvstreams/wvatomicfile.h is in libwvstreams-dev 4.6.1-5.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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 | /* -*- Mode: C++ -*-
* Worldvisions Weaver Software:
* Copyright (C) 1997-2005 Net Integration Technologies, Inc.
*
* A simple class to access filesystem files using WvStreams.
*/
#ifndef __WVATOMFILE_H
#define __WVATOMFILE_H
#include "wvfile.h"
/**
* WvAtomicFile implements a simple extension to wvfile to allow for
* atomic file creation. Files normally can be created and written
* to, however, in the event of a kernel panic the file can be left in
* an unusable state.
*
* A WvAtomicFile is atomically created on file close
*
*/
class WvAtomicFile : public WvFile
{
private:
WvString atomic_file;
WvString tmp_file;
public:
WvAtomicFile(WvStringParm filename, int flags = O_TRUNC | O_CREAT,
mode_t create_mode = 0666);
~WvAtomicFile();
bool open(WvStringParm filename, int flags = O_TRUNC | O_CREAT,
mode_t create_mode = 0666);
void close();
// Like chmod(2), does *not* respect umask
bool chmod(mode_t mode);
bool chown(uid_t owner, gid_t group);
public:
const char *wstype() const { return "WvAtomicFile"; }
};
#endif // __WVATOMFILE_H
|