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314 lines
4.6 KiB
ReStructuredText
314 lines
4.6 KiB
ReStructuredText
.. comment SPDX-License-Identifier: CC-BY-SA-4.0
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.. COMMENT: COPYRIGHT (c) 1988-2002.
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.. COMMENT: On-Line Applications Research Corporation (OAR).
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.. COMMENT: All rights reserved.
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Memory Management Manager
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#########################
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Introduction
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============
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The
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memory management manager is ...
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The directives provided by the memory management manager are:
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- mlockall_ - Lock the Address Space of a Process
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- munlockall_ - Unlock the Address Space of a Process
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- mlock_ - Lock a Range of the Process Address Space
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- munlock_ - Unlock a Range of the Process Address Space
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- mmap_ - Map Process Addresses to a Memory Object
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- munmap_ - Unmap Previously Mapped Addresses
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- mprotect_ - Change Memory Protection
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- msync_ - Memory Object Synchronization
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- shm_open_ - Open a Shared Memory Object
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- shm_unlink_ - Remove a Shared Memory Object
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Background
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==========
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There is currently no text in this section.
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Operations
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==========
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There is currently no text in this section.
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Directives
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==========
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This section details the memory management manager's directives. A subsection
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is dedicated to each of this manager's directives and describes the calling
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sequence, related constants, usage, and status codes.
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.. _mlockall:
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mlockall - Lock the Address Space of a Process
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----------------------------------------------
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.. index:: mlockall
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.. index:: lock the address space of a process
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**CALLING SEQUENCE:**
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.. code-block:: c
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int mlockall(
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);
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**STATUS CODES:**
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.. list-table::
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:class: rtems-table
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* - ``E``
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- The
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**DESCRIPTION:**
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**NOTES:**
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.. _munlockall:
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munlockall - Unlock the Address Space of a Process
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--------------------------------------------------
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.. index:: munlockall
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.. index:: unlock the address space of a process
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**CALLING SEQUENCE:**
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.. code-block:: c
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int munlockall(
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);
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**STATUS CODES:**
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.. list-table::
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:class: rtems-table
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* - ``E``
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- The
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**DESCRIPTION:**
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**NOTES:**
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.. _mlock:
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mlock - Lock a Range of the Process Address Space
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-------------------------------------------------
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.. index:: mlock
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.. index:: lock a range of the process address space
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**CALLING SEQUENCE:**
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.. code-block:: c
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int mlock(
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);
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**STATUS CODES:**
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.. list-table::
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:class: rtems-table
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* - ``E``
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- The
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**DESCRIPTION:**
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**NOTES:**
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.. _munlock:
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munlock - Unlock a Range of the Process Address Space
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-----------------------------------------------------
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.. index:: munlock
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.. index:: unlock a range of the process address space
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**CALLING SEQUENCE:**
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.. code-block:: c
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int munlock(
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);
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**STATUS CODES:**
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.. list-table::
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:class: rtems-table
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* - ``E``
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- The
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**DESCRIPTION:**
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**NOTES:**
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.. _mmap:
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mmap - Map Process Addresses to a Memory Object
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-----------------------------------------------
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.. index:: mmap
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.. index:: map process addresses to a memory object
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**CALLING SEQUENCE:**
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.. code-block:: c
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int mmap(
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);
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**STATUS CODES:**
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.. list-table::
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:class: rtems-table
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* - ``E``
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- The
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**DESCRIPTION:**
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**NOTES:**
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.. _munmap:
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munmap - Unmap Previously Mapped Addresses
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------------------------------------------
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.. index:: munmap
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.. index:: unmap previously mapped addresses
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**CALLING SEQUENCE:**
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.. code-block:: c
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int munmap(
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);
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**STATUS CODES:**
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.. list-table::
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:class: rtems-table
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* - ``E``
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- The
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**DESCRIPTION:**
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**NOTES:**
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.. _mprotect:
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mprotect - Change Memory Protection
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-----------------------------------
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.. index:: mprotect
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.. index:: change memory protection
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**CALLING SEQUENCE:**
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.. code-block:: c
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int mprotect(
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);
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**STATUS CODES:**
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.. list-table::
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:class: rtems-table
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* - ``E``
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- The
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**DESCRIPTION:**
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**NOTES:**
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.. _msync:
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msync - Memory Object Synchronization
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-------------------------------------
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.. index:: msync
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.. index:: memory object synchronization
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**CALLING SEQUENCE:**
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.. code-block:: c
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int msync(
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);
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**STATUS CODES:**
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.. list-table::
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:class: rtems-table
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* - ``E``
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- The
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**DESCRIPTION:**
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**NOTES:**
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.. _shm_open:
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shm_open - Open a Shared Memory Object
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--------------------------------------
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.. index:: shm_open
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.. index:: open a shared memory object
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**CALLING SEQUENCE:**
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.. code-block:: c
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int shm_open(
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);
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**STATUS CODES:**
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.. list-table::
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:class: rtems-table
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* - ``E``
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- The
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**DESCRIPTION:**
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**NOTES:**
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.. _shm_unlink:
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shm_unlink - Remove a Shared Memory Object
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------------------------------------------
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.. index:: shm_unlink
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.. index:: remove a shared memory object
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**CALLING SEQUENCE:**
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.. code-block:: c
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int shm_unlink(
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);
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**STATUS CODES:**
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.. list-table::
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:class: rtems-table
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* - ``E``
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- The
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**DESCRIPTION:**
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**NOTES:**
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