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-<h2>memory_object_synchronize</h2>
-<hr>
-<p>
-<strong>Server Interface</strong> - Forward a client's request to synchronize data with its image in backing store.
-<h3>SYNOPSIS</h3>
-<pre>
-<strong>kern_return_t memory_object_synchronize</strong>
- <strong>(memory_object_t</strong> <var>memory_object</var>,
- <strong>memory_object_control_t</strong> <var>memory_control</var>,
- <strong>vm_offset_t</strong> <var>offset</var>,
- <strong>vm_offset_t</strong> <var>length</var>,
- <strong>memory_object</strong> <var>sync_flags</var><strong>);</strong>
-
-
-<strong>kern_return_t seqnos_memory_object_synchronize</strong>
- <strong>(memory_object_t</strong> <var>memory_object</var>,
- <strong>mach_port_seqno_t</strong> <var>seqno</var>,
- <strong>memory_object_control_t</strong> <var>memory_control</var>,
- <strong>vm_offset_t</strong> <var>offset</var>,
- <strong>vm_offset_t</strong> <var>length</var>,
- <strong>memory_object</strong> <var>sync_flags</var><strong>);</strong>
-</pre>
-<h3>PARAMETERS</h3>
-<dl>
-<p>
-<dt> <var>memory_object</var>
-<dd>
-[in abstract-memory-object (receive) right]
-The abstract memory
-object port that represents the memory object data.
-<p>
-<dt> <var>seqno</var>
-<dd>
-[in scalar]
-The sequence number of this message relative to the abstract
-memory object port.
-<p>
-<dt> <var>memory_control</var>
-<dd>
-[in memory-cache-control send right]
-The memory cache control port
-to be used for a response by the memory manager. If the memory
-object has been supplied to more than one kernel, this parameter
-identifies the kernel that is making the call.
-<p>
-<dt> <var>offset</var>
-<dd>
-[in scalar]
-The offset within the memory object.
-<p>
-<dt> <var>length</var>
-<dd>
-[in scalar]
-The number of bytes cleaned or flushed, starting at <var>offset</var>.
-The number converts to an integral number of virtual pages.
-<p>
-<dt> <var>sync_flags</var>
-<dd>
-[in scalar]
-The bit-wise OR of flags affecting the synchronization.
-<dl>
-<p>
-<dt> <strong>VM_SYNC_INVALIDATE</strong>
-<dd>
-Flushes pages in the range. Only precious pages are returned
-to the memory manager.
-<p>
-<dt> <strong>VM_SYNC_SYNCHRONOUS</strong>
-<dd>
-Writes dirty and precious pages back to the memory manager,
-waits for pages to reach backing storage.
-<p>
-<dt> <strong>VM_SYNC_ASYNCHRONOUS</strong>
-<dd>
-Writes dirty and precious pages back to the memory manager,
-returns without waiting for pages to reach backing storage.
-</dl>
-</dl>
-<h3>DESCRIPTION</h3>
-<p>
-A <strong>memory_object_synchronize</strong> function is called as the
-result of a kernel
-message indicating that a client wishes to synchronize the contents
-of a range of a
-memory object with its backing storage image. This message would have been
-preceded by <strong>memory_object_data_return</strong> messages cleaning
-or flushing the
-specified range.
-<p>
-Depending on the client's supplied <var>sync_flags</var>, the manager waits
-for the pages
-to reach the desired state and then replies with
-<strong>memory_object_synchronize_completed</strong> at which time the
-client returns from its <strong>vm_msync</strong> call. Multiple
-synchronize requests may be outstanding at a time but they will not overlap.
-<h3>RETURN VALUES</h3>
-<p>
-Only generic errors apply.
-<h3>RELATED INFORMATION</h3>
-<p>
-Functions:
-<a href="vm_msync.html"><strong>vm_msync</strong></a>,
-<a href="MO_SY_completed.html"><strong>memory_object_synchronize_completed</strong></a>,
-<a href="memory_object_data_return.html"><strong>memory_object_data_return</strong></a>,
-<a href="memory_object_server.html"><strong>memory_object_server</strong></a>,
-<a href="SMO_server.html"><strong>seqnos_memory_object_server</strong></a>.