2012-08-07 22:19:44 +00:00
|
|
|
/*******************************************************************************
|
|
|
|
|
2016-01-23 19:56:07 +00:00
|
|
|
Copyright(C) Jonas 'Sortie' Termansen 2012, 2013, 2014, 2015.
|
2012-08-07 22:19:44 +00:00
|
|
|
|
|
|
|
This file is part of Sortix.
|
|
|
|
|
|
|
|
Sortix is free software: you can redistribute it and/or modify it under the
|
|
|
|
terms of the GNU General Public License as published by the Free Software
|
|
|
|
Foundation, either version 3 of the License, or (at your option) any later
|
|
|
|
version.
|
|
|
|
|
|
|
|
Sortix is distributed in the hope that it will be useful, but WITHOUT ANY
|
|
|
|
WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
|
|
|
|
FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
|
|
|
|
details.
|
|
|
|
|
|
|
|
You should have received a copy of the GNU General Public License along with
|
|
|
|
Sortix. If not, see <http://www.gnu.org/licenses/>.
|
|
|
|
|
|
|
|
sortix/kernel/inode.h
|
|
|
|
Interfaces and utility classes for implementing inodes.
|
|
|
|
|
|
|
|
*******************************************************************************/
|
|
|
|
|
|
|
|
#ifndef INCLUDE_SORTIX_KERNEL_INODE_H
|
|
|
|
#define INCLUDE_SORTIX_KERNEL_INODE_H
|
|
|
|
|
|
|
|
#include <sys/types.h>
|
|
|
|
|
|
|
|
#include <stddef.h>
|
|
|
|
#include <stdint.h>
|
|
|
|
|
|
|
|
#include <sortix/timespec.h>
|
|
|
|
|
|
|
|
#include <sortix/kernel/refcount.h>
|
|
|
|
|
2015-11-20 01:57:09 +00:00
|
|
|
struct dirent;
|
2012-08-07 22:19:44 +00:00
|
|
|
struct stat;
|
2014-01-20 23:53:18 +00:00
|
|
|
struct statvfs;
|
2016-01-23 19:56:07 +00:00
|
|
|
struct termios;
|
2013-12-20 20:55:05 +00:00
|
|
|
struct wincurpos;
|
2012-08-07 22:19:44 +00:00
|
|
|
struct winsize;
|
|
|
|
|
|
|
|
namespace Sortix {
|
|
|
|
|
2012-12-29 22:09:09 +00:00
|
|
|
class PollNode;
|
2012-08-07 22:19:44 +00:00
|
|
|
struct ioctx_struct;
|
|
|
|
typedef struct ioctx_struct ioctx_t;
|
|
|
|
|
|
|
|
// An interface describing all operations possible on an inode.
|
|
|
|
class Inode : public Refcountable
|
|
|
|
{
|
|
|
|
public: /* These must never change after construction and is read-only. */
|
|
|
|
ino_t ino;
|
|
|
|
dev_t dev;
|
|
|
|
mode_t type; // For use by S_IS* macros.
|
|
|
|
|
|
|
|
public:
|
|
|
|
virtual ~Inode() { }
|
|
|
|
virtual void linked() = 0;
|
|
|
|
virtual void unlinked() = 0;
|
|
|
|
virtual int sync(ioctx_t* ctx) = 0;
|
|
|
|
virtual int stat(ioctx_t* ctx, struct stat* st) = 0;
|
2014-01-20 23:53:18 +00:00
|
|
|
virtual int statvfs(ioctx_t* ctx, struct statvfs* stvfs) = 0;
|
2012-08-07 22:19:44 +00:00
|
|
|
virtual int chmod(ioctx_t* ctx, mode_t mode) = 0;
|
|
|
|
virtual int chown(ioctx_t* ctx, uid_t owner, gid_t group) = 0;
|
|
|
|
virtual int truncate(ioctx_t* ctx, off_t length) = 0;
|
|
|
|
virtual off_t lseek(ioctx_t* ctx, off_t offset, int whence) = 0;
|
|
|
|
virtual ssize_t read(ioctx_t* ctx, uint8_t* buf, size_t count) = 0;
|
|
|
|
virtual ssize_t pread(ioctx_t* ctx, uint8_t* buf, size_t count,
|
|
|
|
off_t off) = 0;
|
|
|
|
virtual ssize_t write(ioctx_t* ctx, const uint8_t* buf, size_t count) = 0;
|
|
|
|
virtual ssize_t pwrite(ioctx_t* ctx, const uint8_t* buf, size_t count,
|
|
|
|
off_t off) = 0;
|
2013-05-16 15:58:16 +00:00
|
|
|
virtual int utimens(ioctx_t* ctx, const struct timespec* atime,
|
|
|
|
const struct timespec* ctime,
|
|
|
|
const struct timespec* mtime) = 0;
|
2012-08-07 22:19:44 +00:00
|
|
|
virtual int isatty(ioctx_t* ctx) = 0;
|
2015-11-20 01:57:09 +00:00
|
|
|
virtual ssize_t readdirents(ioctx_t* ctx, struct dirent* dirent,
|
|
|
|
size_t size, off_t start) = 0;
|
2012-08-07 22:19:44 +00:00
|
|
|
virtual Ref<Inode> open(ioctx_t* ctx, const char* filename, int flags,
|
|
|
|
mode_t mode) = 0;
|
|
|
|
virtual int mkdir(ioctx_t* ctx, const char* filename, mode_t mode) = 0;
|
|
|
|
virtual int link(ioctx_t* ctx, const char* filename, Ref<Inode> node) = 0;
|
|
|
|
virtual int link_raw(ioctx_t* ctx, const char* filename, Ref<Inode> node) = 0;
|
|
|
|
virtual int unlink(ioctx_t* ctx, const char* filename) = 0;
|
|
|
|
virtual int unlink_raw(ioctx_t* ctx, const char* filename) = 0;
|
|
|
|
virtual int rmdir(ioctx_t* ctx, const char* filename) = 0;
|
|
|
|
virtual int rmdir_me(ioctx_t* ctx) = 0;
|
|
|
|
virtual int symlink(ioctx_t* ctx, const char* oldname,
|
|
|
|
const char* filename) = 0;
|
|
|
|
virtual ssize_t readlink(ioctx_t* ctx, char* buf, size_t bufsiz) = 0;
|
2013-12-20 20:55:05 +00:00
|
|
|
virtual int tcgetwincurpos(ioctx_t* ctx, struct wincurpos* wcp) = 0;
|
2012-08-07 22:19:44 +00:00
|
|
|
virtual int tcgetwinsize(ioctx_t* ctx, struct winsize* ws) = 0;
|
2013-06-12 00:18:07 +00:00
|
|
|
virtual int tcsetpgrp(ioctx_t* ctx, pid_t pgid) = 0;
|
|
|
|
virtual pid_t tcgetpgrp(ioctx_t* ctx) = 0;
|
2012-08-07 22:19:44 +00:00
|
|
|
virtual int settermmode(ioctx_t* ctx, unsigned mode) = 0;
|
|
|
|
virtual int gettermmode(ioctx_t* ctx, unsigned* mode) = 0;
|
2012-12-29 22:09:09 +00:00
|
|
|
virtual int poll(ioctx_t* ctx, PollNode* node) = 0;
|
2012-12-20 15:19:07 +00:00
|
|
|
virtual int rename_here(ioctx_t* ctx, Ref<Inode> from, const char* oldname,
|
|
|
|
const char* newname) = 0;
|
2013-03-19 21:40:37 +00:00
|
|
|
virtual Ref<Inode> accept(ioctx_t* ctx, uint8_t* addr, size_t* addrlen,
|
|
|
|
int flags) = 0;
|
|
|
|
virtual int bind(ioctx_t* ctx, const uint8_t* addr, size_t addrlen) = 0;
|
|
|
|
virtual int connect(ioctx_t* ctx, const uint8_t* addr, size_t addrlen) = 0;
|
|
|
|
virtual int listen(ioctx_t* ctx, int backlog) = 0;
|
|
|
|
virtual ssize_t recv(ioctx_t* ctx, uint8_t* buf, size_t count, int flags) = 0;
|
|
|
|
virtual ssize_t send(ioctx_t* ctx, const uint8_t* buf, size_t count,
|
|
|
|
int flags) = 0;
|
2014-02-28 16:10:08 +00:00
|
|
|
virtual int getsockopt(ioctx_t* ctx, int level, int option_name,
|
|
|
|
void* option_value, size_t* option_size_ptr) = 0;
|
|
|
|
virtual int setsockopt(ioctx_t* ctx, int level, int option_name,
|
|
|
|
const void* option_value, size_t option_size) = 0;
|
2014-05-05 19:36:40 +00:00
|
|
|
virtual ssize_t tcgetblob(ioctx_t* ctx, const char* name, void* buffer, size_t count) = 0;
|
|
|
|
virtual ssize_t tcsetblob(ioctx_t* ctx, const char* name, const void* buffer, size_t count) = 0;
|
2014-05-07 12:14:38 +00:00
|
|
|
virtual int unmounted(ioctx_t* ctx) = 0;
|
2016-01-23 19:56:07 +00:00
|
|
|
virtual int tcdrain(ioctx_t* ctx) = 0;
|
|
|
|
virtual int tcflow(ioctx_t* ctx, int action) = 0;
|
|
|
|
virtual int tcflush(ioctx_t* ctx, int queue_selector) = 0;
|
|
|
|
virtual int tcgetattr(ioctx_t* ctx, struct termios* tio) = 0;
|
|
|
|
virtual pid_t tcgetsid(ioctx_t* ctx) = 0;
|
|
|
|
virtual int tcsendbreak(ioctx_t* ctx, int duration) = 0;
|
|
|
|
virtual int tcsetattr(ioctx_t* ctx, int actions, const struct termios* tio) = 0;
|
2012-08-07 22:19:44 +00:00
|
|
|
|
|
|
|
};
|
|
|
|
|
|
|
|
enum InodeType
|
|
|
|
{
|
|
|
|
INODE_TYPE_UNKNOWN = 0,
|
|
|
|
INODE_TYPE_FILE,
|
|
|
|
INODE_TYPE_STREAM,
|
|
|
|
INODE_TYPE_TTY,
|
|
|
|
INODE_TYPE_DIR,
|
2014-09-22 15:35:54 +00:00
|
|
|
INODE_TYPE_SYMLINK,
|
2012-08-07 22:19:44 +00:00
|
|
|
};
|
|
|
|
|
|
|
|
class AbstractInode : public Inode
|
|
|
|
{
|
|
|
|
protected:
|
|
|
|
kthread_mutex_t metalock;
|
|
|
|
InodeType inode_type;
|
|
|
|
mode_t stat_mode;
|
|
|
|
/*nlink_t*/ unsigned long stat_nlink;
|
|
|
|
uid_t stat_uid;
|
|
|
|
gid_t stat_gid;
|
|
|
|
off_t stat_size;
|
2013-03-22 19:19:45 +00:00
|
|
|
struct timespec stat_atim;
|
|
|
|
struct timespec stat_mtim;
|
|
|
|
struct timespec stat_ctim;
|
2012-08-07 22:19:44 +00:00
|
|
|
blksize_t stat_blksize;
|
|
|
|
blkcnt_t stat_blocks;
|
|
|
|
|
|
|
|
public:
|
|
|
|
AbstractInode();
|
|
|
|
virtual ~AbstractInode();
|
|
|
|
virtual void linked();
|
|
|
|
virtual void unlinked();
|
|
|
|
virtual int sync(ioctx_t* ctx);
|
|
|
|
virtual int stat(ioctx_t* ctx, struct stat* st);
|
2014-01-20 23:53:18 +00:00
|
|
|
virtual int statvfs(ioctx_t* ctx, struct statvfs* stvfs);
|
2012-08-07 22:19:44 +00:00
|
|
|
virtual int chmod(ioctx_t* ctx, mode_t mode);
|
|
|
|
virtual int chown(ioctx_t* ctx, uid_t owner, gid_t group);
|
|
|
|
virtual int truncate(ioctx_t* ctx, off_t length);
|
|
|
|
virtual off_t lseek(ioctx_t* ctx, off_t offset, int whence);
|
|
|
|
virtual ssize_t read(ioctx_t* ctx, uint8_t* buf, size_t count);
|
|
|
|
virtual ssize_t pread(ioctx_t* ctx, uint8_t* buf, size_t count, off_t off);
|
|
|
|
virtual ssize_t write(ioctx_t* ctx, const uint8_t* buf, size_t count);
|
|
|
|
virtual ssize_t pwrite(ioctx_t* ctx, const uint8_t* buf, size_t count,
|
|
|
|
off_t off);
|
2013-05-16 15:58:16 +00:00
|
|
|
virtual int utimens(ioctx_t* ctx, const struct timespec* atime,
|
|
|
|
const struct timespec* ctime,
|
|
|
|
const struct timespec* mtime);
|
2012-08-07 22:19:44 +00:00
|
|
|
virtual int isatty(ioctx_t* ctx);
|
2015-11-20 01:57:09 +00:00
|
|
|
virtual ssize_t readdirents(ioctx_t* ctx, struct dirent* dirent,
|
|
|
|
size_t size, off_t start);
|
2012-08-07 22:19:44 +00:00
|
|
|
virtual Ref<Inode> open(ioctx_t* ctx, const char* filename, int flags,
|
|
|
|
mode_t mode);
|
|
|
|
virtual int mkdir(ioctx_t* ctx, const char* filename, mode_t mode);
|
|
|
|
virtual int link(ioctx_t* ctx, const char* filename, Ref<Inode> node);
|
|
|
|
virtual int link_raw(ioctx_t* ctx, const char* filename, Ref<Inode> node);
|
|
|
|
virtual int unlink(ioctx_t* ctx, const char* filename);
|
|
|
|
virtual int unlink_raw(ioctx_t* ctx, const char* filename);
|
|
|
|
virtual int rmdir(ioctx_t* ctx, const char* filename);
|
|
|
|
virtual int rmdir_me(ioctx_t* ctx);
|
|
|
|
virtual int symlink(ioctx_t* ctx, const char* oldname,
|
|
|
|
const char* filename);
|
|
|
|
virtual ssize_t readlink(ioctx_t* ctx, char* buf, size_t bufsiz);
|
2013-12-20 20:55:05 +00:00
|
|
|
virtual int tcgetwincurpos(ioctx_t* ctx, struct wincurpos* wcp);
|
2012-08-07 22:19:44 +00:00
|
|
|
virtual int tcgetwinsize(ioctx_t* ctx, struct winsize* ws);
|
2013-06-12 00:18:07 +00:00
|
|
|
virtual int tcsetpgrp(ioctx_t* ctx, pid_t pgid);
|
|
|
|
virtual pid_t tcgetpgrp(ioctx_t* ctx);
|
2012-08-07 22:19:44 +00:00
|
|
|
virtual int settermmode(ioctx_t* ctx, unsigned mode);
|
|
|
|
virtual int gettermmode(ioctx_t* ctx, unsigned* mode);
|
2012-12-29 22:09:09 +00:00
|
|
|
virtual int poll(ioctx_t* ctx, PollNode* node);
|
2012-12-20 15:19:07 +00:00
|
|
|
virtual int rename_here(ioctx_t* ctx, Ref<Inode> from, const char* oldname,
|
|
|
|
const char* newname);
|
2013-03-19 21:40:37 +00:00
|
|
|
virtual Ref<Inode> accept(ioctx_t* ctx, uint8_t* addr, size_t* addrlen,
|
|
|
|
int flags);
|
|
|
|
virtual int bind(ioctx_t* ctx, const uint8_t* addr, size_t addrlen);
|
|
|
|
virtual int connect(ioctx_t* ctx, const uint8_t* addr, size_t addrlen);
|
|
|
|
virtual int listen(ioctx_t* ctx, int backlog);
|
|
|
|
virtual ssize_t recv(ioctx_t* ctx, uint8_t* buf, size_t count, int flags);
|
|
|
|
virtual ssize_t send(ioctx_t* ctx, const uint8_t* buf, size_t count,
|
|
|
|
int flags);
|
2014-02-28 16:10:08 +00:00
|
|
|
virtual int getsockopt(ioctx_t* ctx, int level, int option_name,
|
|
|
|
void* option_value, size_t* option_size_ptr);
|
|
|
|
virtual int setsockopt(ioctx_t* ctx, int level, int option_name,
|
|
|
|
const void* option_value, size_t option_size);
|
2014-05-05 19:36:40 +00:00
|
|
|
virtual ssize_t tcgetblob(ioctx_t* ctx, const char* name, void* buffer, size_t count);
|
|
|
|
virtual ssize_t tcsetblob(ioctx_t* ctx, const char* name, const void* buffer, size_t count);
|
2014-05-07 12:14:38 +00:00
|
|
|
virtual int unmounted(ioctx_t* ctx);
|
2016-01-23 19:56:07 +00:00
|
|
|
virtual int tcdrain(ioctx_t* ctx);
|
|
|
|
virtual int tcflow(ioctx_t* ctx, int action);
|
|
|
|
virtual int tcflush(ioctx_t* ctx, int queue_selector);
|
|
|
|
virtual int tcgetattr(ioctx_t* ctx, struct termios* tio);
|
|
|
|
virtual pid_t tcgetsid(ioctx_t* ctx);
|
|
|
|
virtual int tcsendbreak(ioctx_t* ctx, int duration);
|
|
|
|
virtual int tcsetattr(ioctx_t* ctx, int actions, const struct termios* tio);
|
2012-08-07 22:19:44 +00:00
|
|
|
|
|
|
|
};
|
|
|
|
|
|
|
|
} // namespace Sortix
|
|
|
|
|
|
|
|
#endif
|