* Add special handling for reading the BEOS:TYPE attribute to supply
on-the-fly fake MIME types for FUSE module filesystems, the same
way it's done in our FAT and NTFS FS modules
* Reuse the mime_ext_table which we already have and put it into a
shared location so we don't get further extra copies of it
* Add a way for a FUSE module to supply Haiku-specific extensions.
This allows it to integrate better with Haiku while only requiring
minimal changes on the FUSE module itself.
* For now, there is only one extension: another function pointer for
"get_fs_info", which lets the FUSE module fill in an fs_info struct.
FUSE provides no good way to otherwise communicate extra information,
such as the volume flags (e.g. B_FS_IS_SHARED).
* A FUSE module can signal that it supports the Haiku extensions by
a) defining HAS_HAIKU_FUSE_EXTENSIONS before including the fuse
headers
b) setting the global variable gHasHaikuFuseExtensions to 1 in
its initialization
Otherwise, the Haiku extensions are completely invisible to the
FUSE module.
Update all in-tree consumers of the BJson API to match. Also added
const-qualifiers to the BString versions of the API, and added the leading
"_" to the header guards.
The asynchronous listener had no reliable way to access HTTP result and
headers from the callbacks. As the callbacks are triggered
asynchronously, they can be run after the request has carried on and,
for example, followed an HTTP redirect, clearing its internal state.
The HeadersReceived callback now passes a reference to BUrlResult for
the request. There are two cases:
- Synchronous listener: passes a reference to the request's results
directly
- Asynchronous listener: archives a copy of the result into the
notification message, and passes a reference to the unarchived copy.
Unfortunately this comes with several ABI and API breakages:
- Change to the prototype of HeadersReceived()
- Change to the class hierarchy of BUrlResult (implements BArchivable)
All users of HTTP requests will need to be updated if they implemented
in HeadersReceived or used BUrlResult.
... reverse this to avoid confusion, you'll see why in next commit.
No functional change intended in this commit, functional change is in the
next commit.
As discussed in 2008
(http://www.freelists.org/post/haiku-development/BString-on-GCC4,1),
this class was not efficient because of lack of inlining. Implement the
suggested solution of a SetCharAt method instead. Also add a CompareAt
which covers a specific use case in KeyboardLayout.cpp.
Adjust all places which were using this feature to safer APIs.
Also fixes a copypaste error in FormattingConventions.cpp.
This is an implementation of pthread barriers pursuant to the relevant specification.
Barriers are essentially a special case of conditional variables,
such that all threads waiting on one are woken up when the number of
waiters reaches a number provided at the initialization of the barrier.
In view of that, this implementation mimics the implementation of pthread_cond,
except it is more specialized and self-contained.
Signed-off-by: Jérôme Duval <jerome.duval@gmail.com>
It is used by the media kit, which created a dependency from libmedia to
libbnetapi to openssl.
It is not entirely specific to the network kit, there are some use cases
that don't involve network at all.
* Fixes problems with setting the partition name after uninitializing
a partition in DriveSetup. Previously, UninitializeJob() was
followed by SetStringJob(), but the kernel was updating the
change counter for the parent partition when uninitializing a
partition, leading to SetStringJob() having an incorrect change
counter for the parent partition. Now the parent change counter
will be correct when SetStringJob() runs.
* Also defer signals while registering fork hooks.
* While malloc provides fork heap hooks which lock the heaps and unlock/reinit,
malloc_debug provides empty hooks.
* Ideas suggested by Ingo, patch reviewed by him. Thanks a lot!
* Also call fork parent hooks on failure.
* Solve locks-up when combining multithreading and process forking, should help
with #13111.
* There's no need to supply ways to mismatch the buffer duration
and size. Anything should reflect the media_format, this is at least
fixed on API level.
* There's no point actually in providing BTimeSource dependant
functionality. If and when there will be need for something like
that, possibly never, an higher level solution will be integrated.
Revert "repo rework: Remove stubs; Breaks repo compat."
Revert "repo rework: Remove need for repos to be self-aware"
This reverts commit a2b2f4d642.
This reverts commit 602076ef82.
This reverts commit 5ffaf72c8a.
These changes break the build on Haiku and the ability to create repo
mirrors, for the lack of a replacement for the URL (an UUID was evoked
on the mailing lists, but not implemented).
We are due for a release soon, please don't break the build.
Team:
- Adjust report generation event to include a final status code for listeners.
CliContext,TeamWindow,ReportUserinterface:
- Use aforementioned status code to indicate whether report generation
succeeded or failed.
DebugReportGenerator:
- Notify listeners if report generation fails. This may have previously
been responsible for some bug reports where it was indicated that the
debugger hung without exiting after being asked to save a report from
a crashed app.
- When dumping disassembly, retrieve it directly if necessary rather than
requesting it via the user interface listener. This also fixes the quirk
that requesting to save a crash report while looking at the source code
of a function would trigger switching it to disassembly visually.
- When walking the list of threads to dump, acquire references to all of
them before starting. Otherwise, it was potentially possible for a running
but not crashed thread to exit while we were generating the report, leaving
us with a pointer to a deleted thread. This was most likely the cause of one
of the crashes reported in #13082.
- When receiving the notification that source code state has changed, clear
the waiting function. Otherwise, it was potentially possible for us to get
other state change notifications, leading to the data semaphore being
released too often. This would then cause later potential waits such as
the stack frame memory dump to not actually wait when they should,
potentially leading them to dereference objects that weren't yet ready.
This fixes another of the crashes in #13802.
* These stubbs satisfied older Haiku releases that
required the URL
* Users running nightly images will need to upgrade
to hrev50723 - hrev50744 before upgrading further
* Getting this out of the way now before the beta
comes out.
* New installations shouldn't suffer any problems.
- Split MessageCodes.h into a second file that separates out the
application-specific message codes from those used by the core.
Adjust includes accordingly. No functional change.
Apple has gotten around to updating their POSIX support so these
constants are now defined. Add some #ifndef guards to prevent warnings
during compile.
* See #12917 for details.
* Squashed to one commit to make revert easy if we
run into any issues.
* pkgman is now pre-attached to the 'current' repo
version within nightly images so they can be updated
by default.
* This shouldn't impact us keeping older sets of package
versions by commit hash for building older hrevs.
* There are XXX stubs with "Kill me". These will need
to be dropped after users are given sufficent time to
upgrade. We're dropping a previously required field (url)
so making this a slowish roll out.
* Makes the repos a lot less restrictive which should
help PM package building automation be a bit easier.
* Once this stuff smooths out, we'll add UUID's to the
repo definitions for duplicate repo detection.
* The idea is to move the callback based mechanism into a derived
class. The objects can be composed to create working systems.
* The BMediaClient class supply RegisterInput/RegisterOutput
and BeginInput/BeginOutput is moved to BSimpleMediaClient.
* Various minor fixes.
* Capabilities() become Kind()
* Use media_client and media_connection to better model
the different situations of the API. Reduce code duplication
and move media_kit structs/methods into private.
* Various API and beauty improvements.
* Introduce id management for media_connections.
* Fix different issues preventing to correctly begin a connection.
* Those structs are provided as replacement for the classic
media_kit ones. They provide better encapsulation of the data
and the resulting code is heavily simplified. It's planned to
introduce BMediaRoster functions to provide conversion from
media_node and media_input/media_output to media_client
and media_connection.
FunctionInstance:
- Add new state FUNCTION_SOURCE_SUPPRESSED. This signals that the user
explicitly forced disassembly to be loaded despite source code being
available.
LoadSourceCodeJob:
- When forced to disassembly, use the above suppressed state accordingly.
SourceView/TeamWindow/TeamDebugger:
- Adjust to take new state into account as needed.
TeamDebugInfo::GetActiveSourceCode:
- When looking at a function to decide whether to return line information
based on source or disassembly, first examine the source code state. If
the source has never been loaded for that function, but we have it available,
set it on the function at that point. This lazily addresses the fact that
LoadSourceCodeJob is called on behalf of a specific function, and
consequently only sets the source code onto that function, and not all others
present in the same file. This allows us to differentiate between the case
where a function doesn't have source code available at all, versus a function
that has simply been forced to disassembly view at this point in time.
The primary symptom of the above issue was that attempting to set a breakpoint
outside of the currently active function, but within the same file would result
in the breakpoints view indicating that the breakpoint was at line 0 rather
than the appropriate line, and breakpoints would also not be drawn in the
source view for such locations.
Thanks to Humdinger for the heads up!
Chunks may be physically contiguous, but virtually disjoint. Adding
physical addresses may cause ranges to be merged incorrectly.
Signed-off-by: Jessica Hamilton <jessica.l.hamilton@gmail.com>
* The BMediaClient is an higher level API to the media_kit. It
corresponds to what the layout API was for the interface_kit.
The main idea is to allow the developer concentrate only on
higher level details and avoiding handle with the tricky parts
of the media_kit. At the same time the general purpose node that
is implemented inside would allow implementing the best techniques
around thus at the same time reducing code duplication and increasing
efficiency.
* BMediaClient is WIP, this is the initial merge of the branch.
The initial development stone was set long time ago and walked
through various design/implementation phases.
- Various cleanups to the USB-audio side, which is similar
- Add in the UVC (USB Video) specific info with parsing of some of the
descriptors (most of the "control" part).
* Ideally we should support this feature by default to allow
future improvements to the plugins management.
* Fixes the major memory corruption that lead to various
crashes on exit in MediaPlayer.
This makes it possible for the Asynchronous listener to get the
messages. It can then process them in a more fancy way.
The default implementation will still log the messages to the console
(if debug is enabled), but it will do so from the Async listener for
asynchronous requests now. This means they will probably be logged from
the same thread, and show up in a more readable way.
This also makes it possible to listen to several requests and log them
in a nice way (in a status window or whatever).
- Remove uses of group matching regular expression, not available on all
build hosts,
- Parsing is faster than our old regexp engine.
Signed-off-by: Adrien Destugues <pulkomandy@pulkomandy.tk>
- Fixes#13002
- Fixed some indentation (tabs vs space), please configure your editor
properly.
* beaglebone vs beagleboard
* While the boards are almost the same, they have
diff. FDT's now (more memory, different layout etc)
* Make u-boot script more rpi-like
(depend on u-boot for initial addresses)
* Wasn't working, still doesn't.
* Remove enqueue_time again.
* Lateness seems generally useless. No way to get something useful
experimentally. The commit noise however was useful, the port wait is
behaving more in accordance with the lateness calculus.
* Fixes#12817 and possibly #12594.
* Now pulling in latest amdgpu atombios.h headers
* Lots of DisplayPort cleanup and removal of legacy stuff
* Add obsolete atombios header for things that disappear
(amdgpu doesn't support older cards like we do)
* Introduce new code to support later encoder tables
* Drop radeon-specific encoder service from common dp_info
* Tested on HD 5450 hdmi
* Helps prevent mainboard explosions and other bad stuff.
* ...maybe not explosions, but bad things.
* The RX 480 reference design can pull as much as 90W
from its PCIe slot at load. PCIe is rated for 75W.
* This change overloads the PCIe power cables vs the PCIe
slot. The PCIe power cables can handle going over spec.
* Untested since we really can't come close to loading a
RX 480 without hardware OpenGL ^_^
* Should be able to test on real hardware within a week.
As usual we ask ICU to do the actual work. The TextEncoding constructor
is fed with a sample of the text to identify (ICU docs recommend a few
hundred bytes). The text is analyzed in various ways (bytes patterns
such as UTF-8 escaping schemes, common letter sequences from known
languages, byte order marks) and an encoding is determined.
Replace code in StyledEdit by this new implementation.
Note that ICU seems to always return some valid encoding, even with fed
with obviously non-text data. This makes StyledEdit open the files no
matter what, where it would error out before.
Fixes#9395.
- Add new interface TeamFunctionSourceInformation. Currently this
exposes a single function allowing one to query for the currently
active source code given a FunctionDebugInfo instance.
- Implement TeamFunctionSourceInformation on TeamDebugInfo.
- Pass TeamFunctionSourceInformation to Dwarf{Team,Image}DebugInfo.
In turn, make use of it in DwarfImageDebugInfo::GetStatement() in
order to determine whether to return the corresponding assembly
or source statement.
With this piece of information, the debugger is now correctly able to
determine that the user is currently looking at disassembly despite debug
info being available, and consequently adjust its stepping behavior based on
that. Previously, the source code statement was always used, leading to it
not being possible to single step assembly lines in such a circumstance
without manually using run to cursor.
Other related cleanups:
- TeamDebugInfo now inherits BReferenceable directly, rather than relying on
indirectly inheriting it from TeamTypeInformation.
- Remove BReferenceable from TeamTypeInformation. The latter is only an
interface anyways, and inheriting that base class from multiple locations
was causing GCC5 trouble when resolving BReference<TeamDebugInfo>, even
when virtual inheritance was used.
The HashMap constructor was called before the heap is initialized,
ending up calling malloc from the OpenHashMap constructor.
Oddly it was still working on x86 but broke other platforms.
Instead we add a Lookup() static method to Partition,
which by default walks gPartitions for the id,
and recursively calls itself on the children lists.
This means we must add a partition even temporarily to gPartitions
before Scan()ing it though.
Signed-off-by: François Revol <revol@free.fr>
* Only set HAIKU_BOOT_PLATFORM to bios_ia32 if not defined
* Add gnuefi build feature
* Introduce BOOT_LDFLAGS, and move options for passing to linker
into ArchitectureSetup
* x86_64 compile fixes for warnings in boot loader
* loader/elf.cpp: don't include ELF32 support when targeting EFI
* relocation_func.cpp: copy of the relocation code from gnuefi
to make _relocate extern "C", and avoid including <efilib.h>
* boot_loader_efi.ld: copy of gnuefi's elf_x86_64_efi.lds,
modified to include support for C++ constructors, etc. Keep in
sync with the gnuefi package
Signed-off-by: Jessica Hamilton <jessica.l.hamilton@gmail.com>
There was some mixup with the interrupt registers, still:
- The driver uses 16-bit read/write, but on SandyBridge the register is
32 bits
- There is a global interrupt enable bit, which must be set to unmask
everything else
- The bits for vblank interrupt are not the same on SNB and later PCH
based devices, and the code mixed the two.
Move the computation of the interrupt bits to an helper function, and
use it everywhere to make sure we always use the right bits.
Modesetting
===========
My previous hack was setting the transcoder registers, instead of the
display ones. Do that the way it is designed in the driver instead:
- If there is a transcoder, set its registers, but do not set the
display timings. The display will remain set at its native (and only)
resolution, and panel fitting will adjust the output of the transcoder
to match.
- If there is no transcoder, set the display registers directly to the
native resolution, as it was done on previous generation devices.
- fPipeOffset hacks no longer needed
DPMS
====
It seems the panel control register is not readable on PCH? Anyway, the
code would loop forever waiting for the bit to become unset when turning
the display off. Waiting seems to not be needed, so just remove it as
well as the "unlock" bit, which does not work for me and results in a
black screen.
Remaining hacks
===============
I still need to force HEAD_MODE_A_ANALOG to get output on pipe B (LVDS
display) working. I suspect something is common to the two pipes or not
allocated to the right one.
This version will have less side effects on other generations and help
with getting things to work on SandyBridge and possibly later devices.
Please test and report.
BeOS had a feature where you could click on a list and while holding
down the mouse button scroll through the list items selecting them
as you went. I implemented the same feature on Haiku.
Did the work in separate thread which makes sure that the mouse
is held down the whole time even if you leave the view.
Thanks Diver for bringing this feature to my attention.
* Rename kDoubleClickTresh to kDoubleClickThreshold
and use floating point in rval
* Pointer (*) goes with type for property var
* Use {}'s for multi-line if conditional
* rename point to where (consistent with header and rest of IK)
* Explicitly compare with 0 for bitwise operator statements
* Rename InitiateDrag() params
- This is how it is named in other versions of elf.h (Linux, glibc, possibly more)
- ELF_MAGIC is used by libelf for the same thing, and the defines conflicts,
breaking libelf build on Haiku.
Add an Icon() and SetIcon() method. Override SetMarked() to set the
parent menu field icon.
Don't move the label right if icon is NULL. Make the first menu item
an IconMenuItem with a NULL icon. This allows the icon to draw in the
closed menu state.
icon gets updated even if you select an item in a submenu
http://insightfactory.tumblr.com/image/142366356207
* Make the color box a rectangle with proportions of golden ratio.
* Override GetContentSize() to make menu item area larger.
* Label should never truncate since I make sure there is enough room.
* Draw the label using BMenuItem parent class
* Carefully adjust the spacing so that there is an attractive amount of
padding between the checkmark and color box and the color box and label.
Add _AddMenu method to BMenuField that adds BColorMenuItem as its
base menu item. This shows the BColorMenuItem in the closed state.
Create BPrivate::MenuItemPrivate
Add a SetSubmenu() method to MenuItemPrivate that gives you
the ability to add a submenu after creating the object. This
method should be public
Skip disabled items
Color gets updated even if you select an item in a submenu
Architecture:
- Store and provide accessor for the size in bytes of the low-level
debug_cpu_state size of the respective target CPU. Adjust subclasses
to pass in the appropriate size information.
The only file in here was Deskbar.h, which just included the "real"
Deskbar.h. Considering nothing in-tree cares about this, and only
a small number of applications at HaikuArchives do, and that Haiku already
broke BeOS source compatibility in lots of other ways, let's just remove
this deprecated cruft.
The warnings made those headers and those including them not detectable
by libiberty's configure because of the way it checked for them.
This fixes the gcc build.
* Detect PCH model based on ISA bridge and save
into shared info for later use.
* On CougarPoint PCH systems, assign pipes via
special CPT registers
* Drop HasPlatformControlHub as PCH should be
based on more than just generation.
UserInterface:
- Add Clone() function to set of required virtuals. This asks the subclass
to create a new instance of its respective type.
{CommandLine,Graphical,Report}UserInterface:
- Implement the above function.
TeamDebugger:
- Add accessor for the currently active UI.
TargetHostInterface:
- Set correct request type when setting up the options for a team restart.
- Ask the TeamDebugger for its user interface and clone it in order to fill
in that aspect of the debug options. This fixes a regression introduced in
commit 880a64, which inadvertently resulted in team restarts no longer
working.
* Wait evaluation is done considering both position
and buffer size.
* Set back position to 0 after seeking.
* Simplify EvaluatePosition to take advantage of inheritance.
* Use back position to determine the current size of the buffer.
* Add more debug tracing.
* Other minor fixes.
* Implement Open/Close mechanism.
* Implement SetBuffer.
* Implement timeout handling.
* Improve Seek mechanism, this is now working by locking the
thread until the backend call SeekCompleted.
* Moved data locking in the internal buffer class, includes handling
of backend writes.
* Takes advantage of inheritance for getting the size. The choice is
made depending on the flags. This allow the implementer to easily
return a custom size by reimplementing GetSize. At the same time
a plain BAdapterIO can still have it's total size set, but the behavior
will change depending it's mutable or not.
* Some decisions are now made by considering everything in absolute
values.
* Other minor fixes.
Fixes#12710.
Signed-off-by: Augustin Cavalier <waddlesplash@gmail.com>
I fixed the modifications to the Jamfiles in src/bin, they were all wrong
in the patch.
Signed-off-by: Augustin Cavalier <waddlesplash@gmail.com>
Fixes#12575. I checked with PulkoMandy on IRC before merging this,
and fixed some whitespace violations of the coding style.
* This is by default provided using a relative buffer. When the
client request a seek over the range we currently have, we will
ask the backend with a SeekRequested. When the backend operation
ended successfully, the client is required to call SeekCompleted
before to return. This will cause the offset to change and the
buffer is cleaned as result. Next data received will be considered
to be at a position equal to the offset plus the relative position.
- Add subfolder src/kits/debugger which contains the debugger's core
functionality and lower layers. Correspondingly add headers/private/debugger
for shared headers to be used by clients such as the Debugger application
and eventual remote_debug_server. Adjust various files to account for
differences as a result of the split and moves.
- Add libdebugger.so to minimal Jamfile.
* This class is provided as a safe multithreaded communication channel
between a BMediaIO-like interface and a Read/Write backend.
* Includes internal buffering and can be used to provide multithreaded
edit of the data.
* Current limitations include missing BOutputAdapter and
correct timeout handling.
* Future plans provide a BRemoteAdapterIO that using ports
and areas allow to easily send big data between processes.
- Messages that expect a reply are now tagged with a unique ID field to
indicate that expectation to the receiving socket messenger.
- The messenger now maintains a map of received reply IDs and their
corresponding messages, along with a message queue of other unsolicited
replies.
- After successfully connecting, the messenger now spawns a thread
whose sole responsibility is receiving and parsing all incoming messages,
and consequently sorting them into the aforementioned data structures based
on the presence of the reply ID. Callers who are awaiting either replies or
other messages are signalled appropriately via a semaphore. This allows
multiplexing of both types of messages on the same socket.
- Introduces new network API class BSocketMessenger, allowing one to send
and receive BMessages across a network socket in a BMessenger-like
fashion. Still very much WIP, hence currently not exposed via public headers.
Based partly on previous work by Axel.
border vs. borders is confusing.
BTabView: Rename border param to borderStyle
BTabView docs: rename border param to borderStyle
enumerate border styles in docs
B{Abstract,Datagram,Secure}Socket:
- Add functionality to listen for and accept new connections, thus allowing
one to use the socket classes for server functionality as well.
BSecureSocket:
- Adjust to take into account differences between how SSL needs to be called
when accepting an incoming connection vs initiating an outbound one.
The handshake on the accepted connection stills fails for unknown reasons
at the moment though.
Note that these changes break the ABI, and thus any packages making use of
them directly will need a rebuild.
* The Haiku specific notes contain a structure size field, now.
* Change the type of the count and size fields in the Haiku specific
notes to uint32 also for 64 bit ELF. The size field for a note is a
uint32 anyway.
* Add function core_dump_write_core_file(). It writes a core file for
the current thread's team. The file format is similar to that of
other OSs (i.e. ELF with PT_LOAD segments and a PT_NOTE segment), but
most of the notes are Haiku specific (infos for team, areas, images,
threads). More data will probably need to be added.
* Add team flag TEAM_FLAG_DUMP_CORE, thread flag
THREAD_FLAGS_TRAP_FOR_CORE_DUMP, and Team property coreDumpCondition,
a condition variable available while a core dump is progress. A
thread that finds its flag THREAD_FLAGS_TRAP_FOR_CORE_DUMP set before
exiting the kernel to userland calls core_dump_trap_thread(), which
blocks on the condition variable until the core dump has finished. We
need the team's threads to stop so we can get their CPU state (and
have a generally unchanging team state while writing the core file).
* Add user debugger message B_DEBUG_WRITE_CORE_FILE. It causes
core_dump_write_core_file() to be called for the team.
* Dumping core as an immediate effect of a terminal signal has not been
implemented yet, but that should be fairly straight forward.
Similar to arch_get_debug_cpu_state(), but the thread whose CPU state
to retrieve is specified. Works only for threads that aren't running,
and on x86-64 we can get the FPU state only when the thread was
interrupted in userland.
Not implemented for the incomplete architecture ports.
This resolves a TODO: We used thread_interrupt() to wake up the thread
from an interruptable wait. However, if the thread was already in the
kernel and about to start waiting, that would have no effect and the
thread would wait anyway. Now there's the new non-blockable signal
SIGNAL_DEBUG_THREAD, which is sent to the thread instead, making sure
that thread doesn't start waiting.
* New Intel SkyLake seems to have 9 mapped ranges
at boot. It seems like this define has been creeping
up for a while.
* Resolves the inital issue reported in #11377 on SkyLake
as well. Bonefish mentioned it might need to be raised
again... he had some good foresight there :-)
* I'm seeing the same no bootable partitions issue though
via USB after this raise. (maybe a USB 3.1 thing?)
* When the user isn't requesting a custom notification, it will
be a BMediaRoster job to do it.
* Reintroduce BMediaRoster::SyncToServices, this time based on local
message passing rather than a global semaphore.
* SyncToServices is used in launch_media_server to make the process
more launch_daemon safe and faster in the average case.
* It was an error to add notifications in the media_server.
* Fixes#12717.
...to just DefaultSettingsView
It is just as obvious what it does in context, but shorter.
Rename the function it contains from
BuildDefaultScreenSaverSettingsView to
BuildDefaultSettingsView
* The old debug system was too complex and made
troubleshooring difficult. (it also was unique
like a snowflake... which we don't want)
* Move to the classic TRACE / ERROR a large majority
of the code has changed to.
* I like trace statements, but drop some obvious ones
* Fix style issues along the way
* Remove SyncToServices, I will probably readd it in future
but this time using a local synchronization service more than
relying on the media_server to release the semaphore.
* Due to some discussions today in mailing list I decided
to step back and retry the initial way to notify media rosters
about media services status. It is woking by using two different
notifications for reconnecting to the media_server and notifying
the local subscribers.
* This speed up the media services restart.
* Sorry for the noise and very thanks for reviewing my code to
everyone.
* The global synchro semaphore is provided with the purpose of
being used to avoid threads lock up when the media_server is in
an undefined state. There's still room for improvements.
* BMediaRoster::SyncToServices lock up on a semaphore until
the multi_audio correctly connected to the mixer.
* There's no need to force the streamer plugin to use a
BMediaIO. This class is supplied to accomodate more smart uses,
but in certain cases it makes just things more complex. If a
plugin doesn't need to have an internal caching method, then it
will be simpler to implement a block-consuming BDataIO and let
the internal BMediaIOWrapper to deal with caching.
* When a watched directory contains a mount point, we need to resolve
the actual parent directory of the mount point in the file system to
serve the monitor.
* Added a directory argument for notify_{stat/attribute}_changed().
* This allows to watch only a directory, and get the notifications for
all of its files, not just add/remove entry notifications.
