modules/vfs_commit.c

ソースコードを見る。

データ構造
struct	commit_info
関数
static void	commit_all (struct vfs_handle_struct *handle, files_struct *fsp)
static void	commit (struct vfs_handle_struct *handle, files_struct *fsp, ssize_t last_write)
static int	commit_connect (struct vfs_handle_struct *handle, const char *service, const char *user)
static int	commit_open (vfs_handle_struct *handle, const char *fname, files_struct *fsp, int flags, mode_t mode)
static ssize_t	commit_write (vfs_handle_struct *handle, files_struct *fsp, int fd, void *data, size_t count)
static ssize_t	commit_pwrite (vfs_handle_struct *handle, files_struct *fsp, int fd, void *data, size_t count, SMB_OFF_T offset)
static ssize_t	commit_close (vfs_handle_struct *handle, files_struct *fsp, int fd)
NTSTATUS	vfs_commit_init (void)
変数
static int	module_debug
static vfs_op_tuple	commit_ops []

---

関数

static void commit_all	(	struct vfs_handle_struct *	handle,
		files_struct *	fsp
	)			[static]

vfs_commit.c の 49 行で定義されています。

参照先 c・fd_handle::fd・files_struct::fh・handle・module_debug.

参照元 commit_close().

{
        struct commit_info *c;

        if ((c = VFS_FETCH_FSP_EXTENSION(handle, fsp))) {
                if (c->dbytes) {
                        DEBUG(module_debug,
                                ("%s: flushing %lu dirty bytes\n",
                                 MODULE, (unsigned long)c->dbytes));

                        fdatasync(fsp->fh->fd);
                        c->dbytes = 0;
                }
        }
}

static void commit	(	struct vfs_handle_struct *	handle,
		files_struct *	fsp,
		ssize_t	last_write
	)			[static]

vfs_commit.c の 67 行で定義されています。

参照先 c・fd_handle::fd・files_struct::fh・handle・module_debug.

参照元 commit_pwrite()・commit_write().

{
        struct commit_info *c;

        if ((c = VFS_FETCH_FSP_EXTENSION(handle, fsp))) {

                if (last_write > 0) {
                        c->dbytes += last_write;
                }

                if (c->dbytes > c->dthresh) {
                        DEBUG(module_debug,
                                ("%s: flushing %lu dirty bytes\n",
                                 MODULE, (unsigned long)c->dbytes));

                        fdatasync(fsp->fh->fd);
                        c->dbytes = 0;
                }
        }
}

static int commit_connect	(	struct vfs_handle_struct *	handle,
		const char *	service,
		const char *	user
	)			[static]

vfs_commit.c の 91 行で定義されています。

参照先 handle・lp_parm_int()・module_debug.

{
        module_debug = lp_parm_int(SNUM(handle->conn), MODULE, "debug", 100);
        return SMB_VFS_NEXT_CONNECT(handle, service, user);
}

static int commit_open	(	vfs_handle_struct *	handle,
		const char *	fname,
		files_struct *	fsp,
		int	flags,
		mode_t	mode
	)			[static]

vfs_commit.c の 100 行で定義されています。

参照先 c・conv_str_size()・commit_info::dthresh・handle・lp_parm_const_string().

{
        SMB_OFF_T dthresh;

        /* Don't bother with read-only files. */
        if ((flags & O_ACCMODE) == O_RDONLY) {
                return SMB_VFS_NEXT_OPEN(handle, fname, fsp, flags, mode);
        }

        dthresh = conv_str_size(lp_parm_const_string(SNUM(handle->conn),
                                        MODULE, "dthresh", NULL));

        if (dthresh > 0) {
                struct commit_info * c;
                c = VFS_ADD_FSP_EXTENSION(handle, fsp, struct commit_info);
                if (c) {
                        c->dthresh = dthresh;
                        c->dbytes = 0;
                }
        }

        return SMB_VFS_NEXT_OPEN(handle, fname, fsp, flags, mode);
}

static ssize_t commit_write	(	vfs_handle_struct *	handle,
		files_struct *	fsp,
		int	fd,
		void *	data,
		size_t	count
	)			[static]

vfs_commit.c の 129 行で定義されています。

参照先 commit()・handle.

{
        ssize_t ret;

        ret = SMB_VFS_NEXT_WRITE(handle, fsp, fd, data, count);
        commit(handle, fsp, ret);

        return ret;
}

static ssize_t commit_pwrite	(	vfs_handle_struct *	handle,
		files_struct *	fsp,
		int	fd,
		void *	data,
		size_t	count,
		SMB_OFF_T	offset
	)			[static]

vfs_commit.c の 144 行で定義されています。

参照先 commit()・handle.

{
        ssize_t ret;

        ret = SMB_VFS_NEXT_PWRITE(handle, fsp, fd, data, count, offset);
        commit(handle, fsp, ret);

        return ret;
}

static ssize_t commit_close	(	vfs_handle_struct *	handle,
		files_struct *	fsp,
		int	fd
	)			[static]

vfs_commit.c の 160 行で定義されています。

参照先 commit_all()・handle.

{
        commit_all(handle, fsp);
        return SMB_VFS_NEXT_CLOSE(handle, fsp, fd);
}

NTSTATUS vfs_commit_init

(

void

)

vfs_commit.c の 186 行で定義されています。

参照先 commit_ops・smb_register_vfs().

{
        return smb_register_vfs(SMB_VFS_INTERFACE_VERSION, MODULE, commit_ops);
}

---

変数

int module_debug [static]

vfs_commit.c の 41 行で定義されています。

vfs_op_tuple commit_ops[] [static]

初期値:

{
        {SMB_VFS_OP(commit_open),
                SMB_VFS_OP_OPEN, SMB_VFS_LAYER_TRANSPARENT},
        {SMB_VFS_OP(commit_close),
                SMB_VFS_OP_CLOSE, SMB_VFS_LAYER_TRANSPARENT},
        {SMB_VFS_OP(commit_write),
                SMB_VFS_OP_WRITE, SMB_VFS_LAYER_TRANSPARENT},
        {SMB_VFS_OP(commit_pwrite),
                SMB_VFS_OP_PWRITE, SMB_VFS_LAYER_TRANSPARENT},
        {SMB_VFS_OP(commit_connect),
                SMB_VFS_OP_CONNECT,  SMB_VFS_LAYER_TRANSPARENT},

        {SMB_VFS_OP(NULL), SMB_VFS_OP_NOOP, SMB_VFS_LAYER_NOOP}
}

vfs_commit.c の 169 行で定義されています。

参照元 vfs_commit_init().

---