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async_daemon(2)
NAME
  async_daemon - Create a local NFS asynchronous I/O server

SYNOPSIS
  async_daemon(
	  unsigned long iod_num,
	  unsigned long magic );

PARAMETERS
  iod_num
      Specifies the number of I/O threads to run.

  magic
      For Tru64 UNIX, this is 950410. If a different value is used, seven NFS
      I/O threads are run.

DESCRIPTION
  The use of the async_daemon() function is not supported in customer
  applications, and the interface is subject to change without notice.	It is
  intended for use solely by nfsiod(8).

  The async_daemon() function starts iod_num NFS I/O kernel threads that are
  used to improve NFS I/O performance.	This function does not return to the
  caller, but remains in the kernel to provide additional support for NFS
  over TCP.

RETURN VALUES
  The async_daemon() function has no successful return.	 In fact, it frees
  the text and data segments associated with the calling program so there is
  nothing to return to. When interrupted by a KILL signal, the I/O threads
  are terminated and the process exits. If the async_daemon() function
  encounters errors, -1 is returned and errno is set to indicate the error.

ERRORS
  If the async_daemon() function fails, errno is set to one of the following
  values:

  [EBUSY] The async_daemon() function has already been called by another
	  process.

  [EPERM] The caller is not the superuser.

  [EINVAL]
	  More than 64 I/O threads were requested.

  [ENOMEM]
	  The kernel memory allocator has no memory.

SEE ALSO
  Functions: nfssvc(2)

  Commands: nfsiod(8)

Index for Section 2

Alphabetical listing for A

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