Commit Graph

9 Commits

Author SHA1 Message Date
João Abecasis
7bbe79fe5f Drop file-engine abstraction from public API
This abstraction imposed serious performance penalties and is being
dropped from the public API.

In particular, by allowing file names to be arbitrarily hijacked by
different file engines, and requiring engines to be instantiated in
order to decide, it imposed unnecessary overhead on all file operations.

Another flaw in the design with direct impact on performance is how
engines have no way to provide (or retain) additional information
obtained when querying the filesystem. In many places this has meant
repeated operations on the file system, where useful information is
immediately discarded to be queried again subsequently.

For Qt 4.8 a major refactoring of the code base took place to allow
bypassing the file-engine abstraction in select places, with
considerable performance gains observed. In Qt 5 it is expected we'll be
able to take this further, reaping even more benefits, but the
abstraction has to go.

[Dropping this now does not preclude that virtual file systems make an
appearance in Qt at a later point in Qt 5's lifecycle. Hopefully with a
new and improved abstraction.]

Forward declarations for QFileExtension(Result) were dropped, as the
classes were never used or defined.

Tests using "internalized" classes will only fully run on developer
builds. QFSFileEngine was removed altogether from exception safety test,
as it isn't its intent to test internal API.

Change-Id: Ie910e6c2628be202ea9e05366b091d6d529b246b
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Reviewed-by: Lars Knoll <lars.knoll@nokia.com>
2012-02-22 00:07:31 +01:00
Jason McDonald
5635823e17 Remove "All rights reserved" line from license headers.
As in the past, to avoid rewriting various autotests that contain
line-number information, an extra blank line has been inserted at the
end of the license text to ensure that this commit does not change the
total number of lines in the license header.

Change-Id: I311e001373776812699d6efc045b5f742890c689
Reviewed-by: Rohan McGovern <rohan.mcgovern@nokia.com>
2012-01-30 03:54:59 +01:00
Shane Kearns
d71ccb9c13 Fix BC break with QAbstractFileEngine "mount points"
File system cached metadata can't be trusted when custom file engines
are in use, because the custom file engine may want to override the
metadata. (e.g. present an archive file as a directory)

Therefore, check if a file engine should be instantiated for each
result in QDirIterator. This is a fast check if no custom file engines
are registered.
When pushing a directory (using QDirIterator::SubDirectories) the
file engine needs to be instantiated also.

Task-number: QTBUG-23688
Task-number: ou1cimx1#965023
Change-Id: I0114c8df6258535553783a2486131c4194926649
Reviewed-by: João Abecasis <joao.abecasis@nokia.com>
(cherry picked from 3864ad09d578210b52e5f58fca2ee8a1144f5be2)
2012-01-29 15:22:19 +01:00
Jason McDonald
629d6eda5c Update contact information in license headers.
Replace Nokia contact email address with Qt Project website.

Change-Id: I431bbbf76d7c27d8b502f87947675c116994c415
Reviewed-by: Rohan McGovern <rohan.mcgovern@nokia.com>
2012-01-23 04:04:33 +01:00
Jason McDonald
1fdfc2abfe Update copyright year in license headers.
Change-Id: I02f2c620296fcd91d4967d58767ea33fc4e1e7dc
Reviewed-by: Rohan McGovern <rohan.mcgovern@nokia.com>
2012-01-05 06:36:56 +01:00
Friedemann Kleint
f0942bd8cb Windows: Fix qabstractfilenengine-test.
The test fails if the repository is checked out with
Windows line endings. Try to work around.

Basically, ensure that common developers can conveniently
run the test.

Change-Id: I91f31b830ba7ba305deea782737d4e07a89420eb
Reviewed-by: Sergio Ahumada <sergio.ahumada@nokia.com>
2011-12-01 22:37:31 +01:00
Jason McDonald
94fc875079 Cleanup corelib autotests
Tidy the autotest .pro files.  Most autotest .pro files should look like
this:

CONFIG += testcase
TARGET = tst_something
QT = core testlib
SOURCES = tst_something.cpp

Change-Id: I877c2194e9fa9dd13478d117895e1e255a948ad7
Reviewed-by: Rohan McGovern <rohan.mcgovern@nokia.com>
2011-11-11 02:45:05 +01:00
Rohan McGovern
07102cebde corelib: eliminated usage of qttest_p4.prf
qttest_p4.prf was added as a convenience for Qt's own autotests in Qt4.
It enables various crufty undocumented magic, of dubious value.
Stop using it, and explicitly enable the things from it which we want.

Change-Id: I7c1ffe9c8c294dbdc988e1582e580b1ed3f4593e
Reviewed-by: Jason McDonald <jason.mcdonald@nokia.com>
2011-10-25 05:03:08 +02:00
Holger Ihrig
012ba8c0e5 Moving relevant tests to corelib/io
Marked Test for qdiriterator as insignificant. See QTBUG-21160

Marked Test for qresourceengine as insignificant. See QTBUG-21159

Task-number: QTBUG-21066

Change-Id: I72848a651ff3e7aff1d6105dd49124e4ed070a44
Reviewed-on: http://codereview.qt.nokia.com/3577
Reviewed-by: Qt Sanity Bot <qt_sanity_bot@ovi.com>
Reviewed-by: Rohan McGovern <rohan.mcgovern@nokia.com>
Reviewed-by: Jason McDonald <jason.mcdonald@nokia.com>
2011-08-31 10:08:38 +02:00