const.c File Reference

#include <kernel/drivers/const.h>
#include <kernel/fs/sysfs.h>
#include <kernel/fs/vfs.h>
#include <kernel/log/log.h>
#include <kernel/log/panic.h>
#include <kernel/mem/vmm.h>
#include <kernel/proc/process.h>
#include <kernel/sched/sched.h>
#include <assert.h>
#include <stdlib.h>
#include <string.h>

Go to the source code of this file.

Functions
static uint64_t	const_one_read (file_t *file, void *buffer, uint64_t count, uint64_t *offset)
static void *	const_one_mmap (file_t *file, void *addr, uint64_t length, uint64_t *offset, pml_flags_t flags)
static uint64_t	const_zero_read (file_t *file, void *buffer, uint64_t count, uint64_t *offset)
static void *	const_zero_mmap (file_t *file, void *addr, uint64_t length, uint64_t *offset, pml_flags_t flags)
static uint64_t	const_null_read (file_t *file, void *buffer, uint64_t count, uint64_t *offset)
static uint64_t	const_null_write (file_t *file, const void *buffer, uint64_t count, uint64_t *offset)
void	const_init (void)

Variables
static dentry_t *	oneFile
static dentry_t *	zeroFile
static dentry_t *	nullFile
static file_ops_t	oneOps
static file_ops_t	zeroOps
static file_ops_t	nullOps

Function Documentation

const_init()

void const_init

(

void

)

Definition at line 100 of file const.c.

References DEREF, NULL, nullFile, nullOps, oneFile, oneOps, panic(), sysfs_file_new(), zeroFile, and zeroOps.

Referenced by init_finalize().

const_null_read()

static uint64_t const_null_read ( file_t *  file, void *  buffer, uint64_t  count, uint64_t *  offset  )

static

Definition at line 77 of file const.c.

References buffer, count, and file.

const_null_write()

static uint64_t const_null_write ( file_t *  file, const void *  buffer, uint64_t  count, uint64_t *  offset  )

static

Definition at line 86 of file const.c.

References buffer, count, and file.

const_one_mmap()

static void * const_one_mmap ( file_t *  file, void *  addr, uint64_t  length, uint64_t *  offset, pml_flags_t  flags  )

static

Definition at line 28 of file const.c.

References file, memset(), NULL, sched_process(), vmm_alloc(), and VMM_ALLOC_NONE.

const_one_read()

static uint64_t const_one_read ( file_t *  file, void *  buffer, uint64_t  count, uint64_t *  offset  )

static

Definition at line 19 of file const.c.

References buffer, count, file, and memset().

const_zero_mmap()

static void * const_zero_mmap ( file_t *  file, void *  addr, uint64_t  length, uint64_t *  offset, pml_flags_t  flags  )

static

Definition at line 57 of file const.c.

References file, memset(), NULL, sched_process(), vmm_alloc(), and VMM_ALLOC_NONE.

const_zero_read()

static uint64_t const_zero_read ( file_t *  file, void *  buffer, uint64_t  count, uint64_t *  offset  )

static

Definition at line 48 of file const.c.

References buffer, count, file, and memset().

Variable Documentation

nullFile

dentry_t* nullFile

static

Definition at line 17 of file const.c.

Referenced by const_init().

nullOps

file_ops_t nullOps

static

Initial value:

= {
    .read = const_null_read,
    .write = const_null_write,
}

Definition at line 95 of file const.c.

Referenced by const_init().

oneFile

dentry_t* oneFile

static

Definition at line 15 of file const.c.

Referenced by const_init().

oneOps

file_ops_t oneOps

static

Initial value:

= {
    .read = const_one_read,
    .mmap = const_one_mmap,
}

Definition at line 43 of file const.c.

Referenced by const_init().

zeroFile

dentry_t* zeroFile

static

Definition at line 16 of file const.c.

Referenced by const_init().

zeroOps

file_ops_t zeroOps

static

Initial value:

= {
    .read = const_zero_read,
    .mmap = const_zero_mmap,
}

Definition at line 72 of file const.c.

Referenced by const_init().