diff options
| author | Chris Sherlock <chris.sherlock79@gmail.com> | 2017-06-02 20:29:40 +1000 |
|---|---|---|
| committer | Chris Sherlock <chris.sherlock79@gmail.com> | 2017-06-03 01:37:33 +0200 |
| commit | 261a2ad41c7478d0771c74825eca74939f7c55ee (patch) | |
| tree | a560020f7b6b785c935d78ec2545973fc3552bcb /include/osl | |
| parent | f7b5b5448b0d21675569d4f011e518a282ca0612 (diff) | |
osl: explain why in file.h a memory mapped file is "shared"
The original comment reads:
Don't know what the "shared" is supposed to mean there? Also,
obviously this API can be used to map *part* of a file into
memory, and different parts can be mapped separately even.
That's because memory mapped files can be used as a form of IPC
that allows multiple processes to share data.
Change-Id: I3cb34fcdb0a93233b22ac888712f9c1d650b30ea
Reviewed-on: https://gerrit.libreoffice.org/38348
Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Chris Sherlock <chris.sherlock79@gmail.com>
Diffstat (limited to 'include/osl')
| -rw-r--r-- | include/osl/file.h | 7 |
1 files changed, 2 insertions, 5 deletions
diff --git a/include/osl/file.h b/include/osl/file.h index 73349572063c..01b6288ea0be 100644 --- a/include/osl/file.h +++ b/include/osl/file.h @@ -766,9 +766,8 @@ SAL_DLLPUBLIC oslFileError SAL_CALL osl_getFileSize( /** Map a shared file into memory. - Don't know what the "shared" is supposed to mean there? Also, - obviously this API can be used to map *part* of a file into - memory, and different parts can be mapped separately even. + Files can be mapped into memory to allow multiple processes to use + this memory-mapped file to share data. On Android, if the Handle refers to a file that is actually inside the app package (.apk zip archive), no new mapping is created, @@ -790,8 +789,6 @@ SAL_DLLPUBLIC oslFileError SAL_CALL osl_mapFile ( /** Unmap a shared file from memory. - Ditto here, why do we need to mention "shared"? - This function just won't work on Android in general where for (uncompressed) files inside the .apk, per SDK conventions in the /assets folder, osl_mapFile() returns a pointer to the file inside |