proc_system.c File Reference

Contains callbacks for procfs system files. More...

Functions
static ssize_t	procs_do_uptime (char *buffer, size_t bufsize)
	Write the uptime inside the buffer. More...
static ssize_t	procs_do_version (char *buffer, size_t bufsize)
	Write the version inside the buffer. More...
static ssize_t	procs_do_mounts (char *buffer, size_t bufsize)
	Write the list of mount points inside the buffer. More...
static ssize_t	procs_do_cpuinfo (char *buffer, size_t bufsize)
	Write the cpu information inside the buffer. More...
static ssize_t	procs_do_meminfo (char *buffer, size_t bufsize)
	Write the memory information inside the buffer. More...
static ssize_t	procs_do_stat (char *buffer, size_t bufsize)
	Write the process statistics inside the buffer. More...
static ssize_t	__procs_read (vfs_file_t *file, char *buf, off_t offset, size_t nbyte)
	Read function for the proc system. More...
int	procs_module_init (void)
	Initialize the procfs system files. More...

Variables
static vfs_sys_operations_t	procs_sys_operations
	Filesystem general operations. More...
static vfs_file_operations_t	procs_fs_operations
	Filesystem file operations. More...

Detailed Description

Contains callbacks for procfs system files.

Copyright

(c) 2014-2024 This file is distributed under the MIT License. See LICENSE.md for details.

Function Documentation

__procs_read()

static ssize_t __procs_read ( vfs_file_t *  file, char *  buf, off_t  offset, size_t  nbyte  )

static

Read function for the proc system.

Parameters

file	The file.
buf	Buffer where the read content must be placed.
offset	Offset from which we start reading from the file.
nbyte	The number of bytes to read.

Returns

The number of red bytes.

procs_do_cpuinfo()

static ssize_t procs_do_cpuinfo ( char *  buffer, size_t  bufsize  )

static

Write the cpu information inside the buffer.

Parameters

buffer	the buffer.
bufsize	the buffer size.

Returns

the amount we wrote.

procs_do_meminfo()

static ssize_t procs_do_meminfo ( char *  buffer, size_t  bufsize  )

static

Write the memory information inside the buffer.

Parameters

buffer	the buffer.
bufsize	the buffer size.

Returns

the amount we wrote.

procs_do_mounts()

static ssize_t procs_do_mounts ( char *  buffer, size_t  bufsize  )

static

Write the list of mount points inside the buffer.

Parameters

buffer	the buffer.
bufsize	the buffer size.

Returns

the amount we wrote.

procs_do_stat()

static ssize_t procs_do_stat ( char *  buffer, size_t  bufsize  )

static

Write the process statistics inside the buffer.

Parameters

buffer	the buffer.
bufsize	the buffer size.

Returns

the amount we wrote.

procs_do_uptime()

static ssize_t procs_do_uptime ( char *  buffer, size_t  bufsize  )

static

Write the uptime inside the buffer.

Parameters

buffer	the buffer.
bufsize	the buffer size.

Returns

the amount we wrote.

procs_do_version()

static ssize_t procs_do_version ( char *  buffer, size_t  bufsize  )

static

Write the version inside the buffer.

Parameters

buffer	the buffer.
bufsize	the buffer size.

Returns

the amount we wrote.

procs_module_init()

int procs_module_init

(

void

)

Initialize the procfs system files.

Returns

0 on success, 1 on failure.

Variable Documentation

procs_fs_operations

vfs_file_operations_t procs_fs_operations

static

Initial value:

= {
    .open_f     = NULL,
    .unlink_f   = NULL,
    .close_f    = NULL,
    .read_f     = __procs_read,
    .write_f    = NULL,
    .lseek_f    = NULL,
    .stat_f     = NULL,
    .ioctl_f    = NULL,
    .getdents_f = NULL,
    .readlink_f = NULL,
}

Filesystem file operations.

procs_sys_operations

vfs_sys_operations_t procs_sys_operations

static

Initial value:

= {
    .mkdir_f   = NULL,
    .rmdir_f   = NULL,
    .stat_f    = NULL,
    .creat_f   = NULL,
    .symlink_f = NULL,
}

Filesystem general operations.