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creates
a new fifo file with name The access permissions are specified by and
restricted by the of the calling process. The fifo’s owner ID is set to
the process’s effective user ID. The fifo’s group ID is set to that of the
parent directory in which it is created.
A 0 return value indicates
success. A -1 return value indicates an error, and an error code is stored
in
will fail and no fifo will be created if: The kernel has not
been configured to support fifo’s. A component of the path prefix is not
a directory. A component of a pathname exceeded characters, or an entire
path name exceeded characters. A component of the path prefix does not
exist. Search permission is denied for a component of the path prefix.
Too many symbolic links were encountered in translating the pathname. The
named file resides on a read-only file system. The named file exists. The
directory in which the entry for the new fifo is being placed cannot be
extended because there is no space left on the file system containing the
directory. There are no free inodes on the file system on which the fifo
is being created. The directory in which the entry for the new fifo is
being placed cannot be extended because the user’s quota of disk blocks
on the file system containing the directory has been exhausted. The user’s
quota of inodes on the file system on which the fifo is being created has
been exhausted. An error occurred while making the directory entry or
allocating the inode. An error occurred while reading from or writing
to the file system. points outside the process’s allocated address space.
The function call conforms to
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