io.h File Reference

#include "mos/platform/platform.h"
#include <mos/io/io_types.h>
#include <mos/mm/mm_types.h>
#include <mos/types.h>

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Classes
struct	io_op_t
struct	io_t

Typedefs
typedef struct _io	io_t
typedef struct _vmap	vmap_t

Enumerations
enum	io_type_t {   IO_NULL , IO_FILE , IO_DIR , IO_IPC ,   IO_PIPE , IO_CONSOLE }
enum	io_flags_t {   IO_NONE = MEM_PERM_NONE , IO_READABLE = MEM_PERM_READ , IO_WRITABLE = MEM_PERM_WRITE , IO_EXECUTABLE = MEM_PERM_EXEC ,   IO_SEEKABLE = 1 << 3 , IO_MMAPABLE = 1 << 4 }

Functions
void	io_init (io_t *io, io_type_t type, io_flags_t flags, const io_op_t *ops)
io_t *	io_ref (io_t *io)
io_t *	io_unref (io_t *io)
__nodiscard bool	io_valid (const io_t *io)
size_t	io_read (io_t *io, void *buf, size_t count)
size_t	io_pread (io_t *io, void *buf, size_t count, off_t offset)
size_t	io_write (io_t *io, const void *buf, size_t count)
off_t	io_seek (io_t *io, off_t offset, io_seek_whence_t whence)
off_t	io_tell (io_t *io)
bool	io_mmap_perm_check (io_t *io, vm_flags flags, bool is_private)
bool	io_mmap (io_t *io, vmap_t *vmap, off_t offset)
bool	io_munmap (io_t *io, vmap_t *vmap, bool *unmapped)
void	io_get_name (const io_t *io, char *buf, size_t size)

Variables
io_t *const	io_null

Typedef Documentation

io_t

typedef struct _io io_t

Definition at line 11 of file io.h.

Enumeration Type Documentation

io_type_t

enum io_type_t

Enumerator
IO_NULL
IO_FILE
IO_DIR
IO_IPC
IO_PIPE
IO_CONSOLE

Definition at line 14 of file io.h.

io_flags_t

enum io_flags_t

Enumerator
IO_NONE
IO_READABLE
IO_WRITABLE
IO_EXECUTABLE
IO_SEEKABLE
IO_MMAPABLE

Definition at line 24 of file io.h.

Function Documentation

io_init()

void io_init	(	io_t *	io,
		io_type_t	type,
		io_flags_t	flags,
		const io_op_t *	ops )

Definition at line 44 of file io.c.

Referenced by console_register(), ipc_conn_io_create(), ipc_create(), pipeio_create(), and vfs_do_open_dentry().

io_ref()

io_t * io_ref

(

io_t *

io

)

Definition at line 73 of file io.c.

Referenced by elf_create_process(), elf_fill_process(), elf_map_interpreter(), io_dup(), io_dup2(), io_mmap(), mm_clone_vmap_locked(), process_attach_ref_fd(), process_do_execveat(), process_do_fork(), and vmap_split().

io_unref()

io_t * io_unref

(

io_t *

io

)

Definition at line 92 of file io.c.

Referenced by elf_create_process(), elf_fill_process(), elf_map_interpreter(), io_munmap(), process_detach_fd(), process_do_execveat(), and process_exit().

io_valid()

__nodiscard bool io_valid

(

const io_t *

io

)

Definition at line 127 of file io.c.

Referenced by process_detach_fd(), process_do_execveat(), process_do_fork(), process_exit(), and vfs_fstatat().

io_read()

size_t io_read	(	io_t *	io,
		void *	buf,
		size_t	count )

Definition at line 132 of file io.c.

Referenced by io_pread().

io_pread()

size_t io_pread	(	io_t *	io,
		void *	buf,
		size_t	count,
		off_t	offset )

Definition at line 151 of file io.c.

Referenced by elf_read_file().

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io_write()

size_t io_write	(	io_t *	io,
		const void *	buf,
		size_t	count )

Definition at line 180 of file io.c.

io_seek()

off_t io_seek	(	io_t *	io,
		off_t	offset,
		io_seek_whence_t	whence )

Definition at line 199 of file io.c.

Referenced by io_pread(), and io_tell().

io_tell()

off_t io_tell

(

io_t *

io

)

Definition at line 218 of file io.c.

Referenced by io_pread().

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io_mmap_perm_check()

bool io_mmap_perm_check	(	io_t *	io,
		vm_flags	flags,
		bool	is_private )

Definition at line 224 of file io.c.

Referenced by io_mmap(), and vm_protect().

io_mmap()

bool io_mmap	(	io_t *	io,
		vmap_t *	vmap,
		off_t	offset )

Definition at line 254 of file io.c.

Referenced by mmap_file().

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io_munmap()

bool io_munmap	(	io_t *	io,
		vmap_t *	vmap,
		bool *	unmapped )

Definition at line 273 of file io.c.

Referenced by vmap_destroy().

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io_get_name()

void io_get_name	(	const io_t *	io,
		char *	buf,
		size_t	size )

Definition at line 307 of file io.c.

Referenced by process_sysfs_vmap_stat(), vsnprintf_do_pointer_kernel(), and x86_dump_stack_at().

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Variable Documentation

io_null

io_t* const io_null

extern

Definition at line 42 of file io.c.

Referenced by process_new().