_io_connect_link_reply

Structure of a connect message that redirects a client to another resource

Synopsis:

struct _io_connect_link_reply {
    uint32_t                    reserved1;
    uint32_t                    file_type;
    uint8_t                     eflag;
    uint8_t                     reserved2[1];
    uint16_t                    chroot_len;
    uint32_t                    umask;
    uint16_t                    nentries;
    uint16_t                    path_len;
/*
    struct _io_connect_entry    server[nentries];
    char                        path[path_len];
or
    struct _server_info         info;
    io_?_t                      msg;
*/
};

Description:

A resource manager uses the _io_connect_link_reply structure in a reply to a client that redirects the client to another resource. The members include:

file_type

The file type; one of the following (defined in <sys/ftype.h>):

• _FTYPE_ANY — the path name can be anything.
• _FTYPE_LINK — reserved for the Process Manager.
• _FTYPE_MOUNT — receive mount requests on the path (path must be NULL).
• _FTYPE_MQUEUE — reserved for a message-queue manager.
• _FTYPE_PIPE — reserved for a pipe manager.
• _FTYPE_SEM — reserved for a semaphore manager.
• _FTYPE_SHMEM — reserved for a shared memory object.
• _FTYPE_SOCKET — reserved for a socket manager.
• _FTYPE_SYMLINK — reserved for the Process Manager.

eflag

Extended flags:

• _IO_CONNECT_EFLAG_DIR — the path referenced a directory.
• _IO_CONNECT_EFLAG_DOT — the last component of a path was . or .. (i.e. the current or parent directory).

chroot_len

The length of chroot in the returned path.

umask

One of:

• S_IFBLK — block special.
• S_IFCHR — character special.
• S_IFDIR — directory.
• S_IFIFO — FIFO special.
• S_IFLNK — symbolic link.
• S_IFMT — type of file.
• S_IFNAM — special named file.
• S_IFREG — regular.
• S_IFSOCK — socket.

nentries

If this member is zero, the path is a symbolic link.

path_len

The length of the path including the terminating null character. If this member is zero, the path is null-terminated.

Classification:

QNX Neutrino

See also:

_io_connect, _io_connect_ftype_reply, resmgr_connect_funcs_t

Writing a Resource Manager