Somehow it got hooked to simulator file functions when it should
be (and was) using raw OS functions.
Credit: Frank Gevaerts
Change-Id: Iac02fed1067830a432183632a047e00dfd03d3c2
This patch redoes the filesystem code from the FAT driver up to the
clipboard code in onplay.c.
Not every aspect of this is finished therefore it is still "WIP". I
don't wish to do too much at once (haha!). What is left to do is get
dircache back in the sim and find an implementation for the dircache
indicies in the tagcache and playlist code or do something else that
has the same benefit. Leaving these out for now does not make anything
unusable. All the basics are done.
Phone app code should probably get vetted (and app path handling
just plain rewritten as environment expansions); the SDL app and
Android run well.
Main things addressed:
1) Thread safety: There is none right now in the trunk code. Most of
what currently works is luck when multiple threads are involved or
multiple descriptors to the same file are open.
2) POSIX compliance: Many of the functions behave nothing like their
counterparts on a host system. This leads to inconsistent code or very
different behavior from native to hosted. One huge offender was
rename(). Going point by point would fill a book.
3) Actual running RAM usage: Many targets will use less RAM and less
stack space (some more RAM because I upped the number of cache buffers
for large memory). There's very little memory lying fallow in rarely-used
areas (see 'Key core changes' below). Also, all targets may open the same
number of directory streams whereas before those with less than 8MB RAM
were limited to 8, not 12 implying those targets will save slightly
less.
4) Performance: The test_disk plugin shows markedly improved performance,
particularly in the area of (uncached) directory scanning, due partly to
more optimal directory reading and to a better sector cache algorithm.
Uncached times tend to be better while there is a bit of a slowdown in
dircache due to it being a bit heavier of an implementation. It's not
noticeable by a human as far as I can say.
Key core changes:
1) Files and directories share core code and data structures.
2) The filesystem code knows which descriptors refer to same file.
This ensures that changes from one stream are appropriately reflected
in every open descriptor for that file (fileobj_mgr.c).
3) File and directory cache buffers are borrowed from the main sector
cache. This means that when they are not in use by a file, they are not
wasted, but used for the cache. Most of the time, only a few of them
are needed. It also means that adding more file and directory handles
is less expensive. All one must do in ensure a large enough cache to
borrow from.
4) Relative path components are supported and the namespace is unified.
It does not support full relative paths to an implied current directory;
what is does support is use of "." and "..". Adding the former would
not be very difficult. The namespace is unified in the sense that
volumes may be specified several times along with relative parts, e.g.:
"/<0>/foo/../../<1>/bar" :<=> "/<1>/bar".
5) Stack usage is down due to sharing of data, static allocation and
less duplication of strings on the stack. This requires more
serialization than I would like but since the number of threads is
limited to a low number, the tradoff in favor of the stack seems
reasonable.
6) Separates and heirarchicalizes (sic) the SIM and APP filesystem
code. SIM path and volume handling is just like the target. Some
aspects of the APP file code get more straightforward (e.g. no path
hashing is needed).
Dircache:
Deserves its own section. Dircache is new but pays homage to the old.
The old one was not compatible and so it, since it got redone, does
all the stuff it always should have done such as:
1) It may be update and used at any time during the build process.
No longer has one to wait for it to finish building to do basic file
management (create, remove, rename, etc.).
2) It does not need to be either fully scanned or completely disabled;
it can be incomplete (i.e. overfilled, missing paths), still be
of benefit and be correct.
3) Handles mounting and dismounting of individual volumes which means
a full rebuild is not needed just because you pop a new SD card in the
slot. Now, because it reuses its freed entry data, may rebuild only
that volume.
4) Much more fundamental to the file code. When it is built, it is
the keeper of the master file list whether enabled or not ("disabled"
is just a state of the cache). Its must always to ready to be started
and bind all streams opened prior to being enabled.
5) Maintains any short filenames in OEM format which means that it does
not need to be rebuilt when changing the default codepage.
Miscellaneous Compatibility:
1) Update any other code that would otherwise not work such as the
hotswap mounting code in various card drivers.
2) File management: Clipboard needed updating because of the behavioral
changes. Still needs a little more work on some finer points.
3) Remove now-obsolete functionality such as the mutex's "no preempt"
flag (which was only for the prior FAT driver).
4) struct dirinfo uses time_t rather than raw FAT directory entry
time fields. I plan to follow up on genericizing everything there
(i.e. no FAT attributes).
5) unicode.c needed some redoing so that the file code does not try
try to load codepages during a scan, which is actually a problem with
the current code. The default codepage, if any is required, is now
kept in RAM separarately (bufalloced) from codepages specified to
iso_decode() (which must not be bufalloced because the conversion
may be done by playback threads).
Brings with it some additional reusable core code:
1) Revised file functions: Reusable code that does things such as
safe path concatenation and parsing without buffer limitations or
data duplication. Variants that copy or alter the input path may be
based off these.
To do:
1) Put dircache functionality back in the sim. Treating it internally
as a different kind of file system seems the best approach at this
time.
2) Restore use of dircache indexes in the playlist and database or
something effectively the same. Since the cache doesn't have to be
complete in order to be used, not getting a hit on the cache doesn't
unambiguously say if the path exists or not.
Change-Id: Ia30f3082a136253e3a0eae0784e3091d138915c8
Reviewed-on: http://gerrit.rockbox.org/566
Reviewed-by: Michael Sevakis <jethead71@rockbox.org>
Tested: Michael Sevakis <jethead71@rockbox.org>
A thread polls the appropriate GPIO pin for sd card presence and mounts
using the mount system call.
Change-Id: I31ab41c4120f4af64eb6998b7e7b6f9051585efb
Part of this change is to align sdlapp builds to other application targets
in that the sim_* wrappers are not used anymore (except for sim_read/write).
Path mangling is now done in rbpaths.c as well.
Change-Id: I9726da73b50a83d9e1a1840288de16ec01ea029d
It was also broken functionally, probably since a while.So restore the
functionality. Run it on the dap, the tcd files will be placed into .rockbox folder.
Change-Id: Id7a6ce4389dfaf99799258902be80d630af0601c
This changes the way creat() is wrapped around in native builds
so more experienced devs should look at it.
This patch forces to compile fat test in 32bit mode. Building
natively on x86-64 works just fine but our fat code apparently
can't deal with 64bit pointers/ints correctly.
Change-Id: I000015094f7db957ce826c22672608cd419908b0
Reviewed-on: http://gerrit.rockbox.org/228
Reviewed-by: Thomas Martitz <kugel@rockbox.org>
* filesize() is not POSIX, so it doesn't need stubbing or redirecting
* make the various directory functions use the sim_ versions for PCTOOL
* PCTOOL needs generic byteswap functions
* fix the database makefile to not use -DSIMULATOR anymore
Change-Id: Ic6abc4f662830b85626c751a472fa4a03e844871
More information: www.openpandora.org
Possible things to implement:
- Special button mappings
- Battery monitoring
- ALSA audio backend
- Automate creation of "pnd" (=binary) file
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@29451 a1c6a512-1295-4272-9138-f99709370657
Adds Nokia N900, N810 and N800 support.
Features:
- Introduce maemo specific platform defines
- Play audio in silent mode
- Stop playback on incoming calls
- Battery level readout
- Bluetooth headset support
- Save CPU by disabling screen updates if the display
is off or the app doesn't have input focus
- N900: GStreamer audio backend
Kudos to kugel for the code review.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@29248 a1c6a512-1295-4272-9138-f99709370657
Use host's functions for file i/o directly (open(), close() ,etc.), not the sim_* variants.
Some dir functions need to be wrapped still because we need to cache the parents dir's path (host's dirent doesn't let us know).
For the same reason (incompatibility) with host's dirent) detach some members from Rockbox' dirent struct and put it into an extra one,
the values can be retrieved via the new dir_get_info().
Get rid of the sim_ prefix for sleep as well and change the signature to unix sleep().
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@27968 a1c6a512-1295-4272-9138-f99709370657
Removes the need to fix up those in the simulator.
Also work around some posix-mingw incompatibilities (e.g. getcwd()).
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@27904 a1c6a512-1295-4272-9138-f99709370657
For RaaA it evaluates user paths at runtime. For everything but codecs/plugins it will give the path under $HOME/.config/rockbox.org if write access is needed or if the file/folder in question exists there (otherwise it gives /usr/local/share/rockbox).
This allows for installing themes under $HOME as well as having config.cfg and other important files there while installing the application (and default themes) under /usr/local.
On the DAPs it's a no-op, returing /.rockbox directly.
Not converted to use get_user_file_path() are plugins themselves, because RaaA doesn't build plugins yet.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@27656 a1c6a512-1295-4272-9138-f99709370657
- Move ATTRIBUTE_PRINTF/ATTRIBUTE_SCANF from _ansi.h
They are not related at all to this file, and this broke compilation
with Code Sourcery GCC which ships its own _ansi.h
- Move LIKELY/UNLIKELY from system.h
There is likely a lot more GCC extensions used everywhere in the source,
conditionally on __GNUC__ or unconditionally
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@27548 a1c6a512-1295-4272-9138-f99709370657
The simulator defines PLATFORM_HOSTED, as RaaA will do (RaaA will not define SIMULATOR).
The new define is to (de-)select code to compile on hosted platforms generally.
Should be no functional change to targets or the simulator.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@27019 a1c6a512-1295-4272-9138-f99709370657
This is to a) to cleanup firmware/common and firmware/include a bit, but also b) for Rockbox as an application which should use the host system's c library and headers, separating makes it easy to exclude our files from the build.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@25850 a1c6a512-1295-4272-9138-f99709370657
browsing when cache is enabled (system -> disk -> enable directory
cache). Cache building on boot is transparent except the first boot.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@7588 a1c6a512-1295-4272-9138-f99709370657
between uisimulator files and firmware/apps files are better done.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@6031 a1c6a512-1295-4272-9138-f99709370657
the simulator does not use the firmare\include path, instead it uses standard header files
those header files that do not exist in the SDK are placed in the win32 directory (dir.h, sprintf.h)
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@3264 a1c6a512-1295-4272-9138-f99709370657
