From 26a029d407be480d791972afb5975cf62c9360a6 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Fri, 19 Apr 2024 02:47:55 +0200 Subject: Adding upstream version 124.0.1. Signed-off-by: Daniel Baumann --- docs/nspr/reference/pr_memmap.rst | 50 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 50 insertions(+) create mode 100644 docs/nspr/reference/pr_memmap.rst (limited to 'docs/nspr/reference/pr_memmap.rst') diff --git a/docs/nspr/reference/pr_memmap.rst b/docs/nspr/reference/pr_memmap.rst new file mode 100644 index 0000000000..6b37fe313a --- /dev/null +++ b/docs/nspr/reference/pr_memmap.rst @@ -0,0 +1,50 @@ +PR_MemMap +========= + +Maps a section of a file to memory. + + +Syntax +------ + +.. code:: + + #include + + void* PR_MemMap( + PRFileMap *fmap, + PRInt64 offset, + PRUint32 len); + + +Parameters +~~~~~~~~~~ + +The function has the following parameters: + +``fmap`` + A pointer to the file-mapping object representing the file to be + memory-mapped. +``offset`` + The starting offset of the section of file to be mapped. The offset + must be aligned to whole pages. +``len`` + Length of the section of the file to be mapped. + + +Returns +~~~~~~~ + +The starting address of the memory region to which the section of file +is mapped. Returns ``NULL`` on error. + + +Description +----------- + +:ref:`PR_MemMap` maps a section of the file represented by the file mapping +``fmap`` to memory. The section of the file starts at ``offset`` and has +the length ``len``. + +When the file-mapping memory region is no longer needed, it should be +unmapped with a call to :ref:`PR_MemUnmap`. -- cgit v1.2.3