File: pr_openanonfilemap.rst

package info (click to toggle)
firefox 147.0.2-1
  • links: PTS, VCS
  • area: main
  • in suites: sid
  • size: 4,683,484 kB
  • sloc: cpp: 7,607,246; javascript: 6,533,185; ansic: 3,775,227; python: 1,415,393; xml: 634,561; asm: 438,951; java: 186,241; sh: 62,752; makefile: 18,079; objc: 13,092; perl: 12,808; yacc: 4,583; cs: 3,846; pascal: 3,448; lex: 1,720; ruby: 1,003; php: 436; lisp: 258; awk: 247; sql: 66; sed: 54; csh: 10; exp: 6
file content (51 lines) | stat: -rw-r--r-- 926 bytes parent folder | download | duplicates (17) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
 
PR_OpenAnonFileMap
==================

Creates or opens a named semaphore with the specified name


Syntax
------

.. code::

   #include <prshma.h>

   NSPR_API( PRFileMap *)
   PR_OpenAnonFileMap(
     const char *dirName,
     PRSize size,
     PRFileMapProtect prot
   );


Parameters
~~~~~~~~~~

The function has the following parameters:

``dirName``
   A pointer to a directory name that will contain the anonymous file.
``size``
   The size of the shared memory.
``prot``
   How the shared memory is mapped.


Returns
~~~~~~~

Pointer to :ref:`PRFileMap` or ``NULL`` on error.


Description
-----------

If the shared memory already exists, a handle is returned to that shared
memory object.

On Unix platforms, :ref:`PR_OpenAnonFileMap` uses ``dirName`` as a
directory name, without the trailing '/', to contain the anonymous file.
A filename is generated for the name.

On Windows platforms, ``dirName`` is ignored.