doc/technical/file-management.txt

Overview of the file management subsystem
Adrian Chadd <adrian@creative.net.au>

$Id: file-management.txt,v 1.2 2003/10/13 02:15:20 metalrock Exp $

File operations
---------------

The file operations are also wrapped through file_open() and file_close()
which handle calling fd_open() / fd_close() and tracking the filedescriptors
correctly. fbopen() / fbclose() use file_open() / file_close() too.

fileio.c defines the functions:

int
file_open(const char *filename, int mode, int fmode)

A wrapper around open(filename, flags, mode). Read the open manpage for
information. file_open() enforces filedescriptor limits and tags the FD
through fd_open().

void
file_close(int fd)

A wrapper around close() for files. close() handles fd_close()ing the fd.


FBFILE *
fbopen(const char *filename, const char *mode)

void
fbclose(FBFILE *fb)

These are the 'buffered disk IO' routines. You can read the code yourself.
Note that these routines use file_open() and file_close().
Revision:	30
Committed:	Sun Oct 2 20:03:27 2005 UTC (18 years, 6 months ago) by adx
Content type:	text/plain
File size:	975 byte(s)
Log Message:	- imported sources - can be moved later according to the directory/branching scheme, but we need the svn up
#	Content
1	Overview of the file management subsystem
2	Adrian Chadd <adrian@creative.net.au>
3
4	$Id: file-management.txt,v 1.2 2003/10/13 02:15:20 metalrock Exp $
5
6	File operations
7	---------------
8
9	The file operations are also wrapped through file_open() and file_close()
10	which handle calling fd_open() / fd_close() and tracking the filedescriptors
11	correctly. fbopen() / fbclose() use file_open() / file_close() too.
12
13	fileio.c defines the functions:
14
15	int
16	file_open(const char *filename, int mode, int fmode)
17
18	A wrapper around open(filename, flags, mode). Read the open manpage for
19	information. file_open() enforces filedescriptor limits and tags the FD
20	through fd_open().
21
22	void
23	file_close(int fd)
24
25	A wrapper around close() for files. close() handles fd_close()ing the fd.
26
27
28	FBFILE *
29	fbopen(const char filename, const char mode)
30
31	void
32	fbclose(FBFILE *fb)
33
34	These are the 'buffered disk IO' routines. You can read the code yourself.
35	Note that these routines use file_open() and file_close().