string_for_size uses KiB, etc., and so when the two are combined (e.g.
pkgman's progress display), it looked especially strange to have two
different units.
TeamDebugger:
- When a job is aborted, instead of calling into the user interface directly
to reset the status message, post a message to do so. Also, only post the
message if we aren't already in a terminating state. Otherwise, if jobs
were still running while the team debugger is executing its destructor, it
would attempt to make calls to the already destroyed user interface. This
bug has likely been with us for quite some time, but was hidden by incorrect
ref counting in the past (see #12343).
Replace 'class' with 'struct', since they are already defined as 'struct'
in PackageInfoAttributeValue.h
Pointed by clang [-Wmismatched-tags]
Change-Id: I094d32c3444fe4299a3afe0872ade296f92debf9
Reviewed-on: https://review.haiku-os.org/471
Reviewed-by: waddlesplash <waddlesplash@gmail.com>
Remove index of portInfos[], since gcc8 warns -Werror=array-bounds
in UserlandFSServer::_Announce().
Change-Id: I79c4ee9d7dc301c54454974698ebd88d1a30750a
Reviewed-on: https://review.haiku-os.org/428
Reviewed-by: Adrien Destugues <pulkomandy@gmail.com>
* Consolidate all fdt code into fdt bus_manager
* Build boot and kernel static libraries
Change-Id: I2a69cd7e1f1276999a80734ff12918fd49b599e5
Reviewed-on: https://review.haiku-os.org/440
Reviewed-by: Alexander von Gluck IV <kallisti5@unixzen.com>
memset uses rep stosb on x86 during boot, with memory
not set to write-combining, which makes it slow.
Instead we do aligned writes of 2 x four bytes at once.
Only clear the minimum of size and width * height * 4
UEFI framebuffer size can be huge, upto 512MB here,
and rep stosb seems to be around 25-30MB/s
This is written as generic as possible to work on
old compilers and different platforms, without
expecting boot memset to be optimized.
This makes it almost unnoticable compared to not
clearing.
It seems not all of the kernel includes this, but some use new/delete
anyway. Further, operator delete[] was not implemented at all.
Possibly fixes the ARM build.
Writes to videomem is slow without memory remapping
Can't do the mapping without leaving UEFI, so skipping
the clear. Afaict it should always be cleared by UEFI
This saves ~10 seconds of booting on my machine
(1920*1080*4 bytes)
EFI video mode (should have been it's own commit)
* Only do strcmp if there are enough params
* break when found
This reverts commit ec1b18c58a.
This was not well enough reviewed, and it seems that at least some
consumers of the old API (e.g. WebPositive) need more than the new one provides.
Change-Id: Ie7ad1fc70dab889922424298661504b00f66d31d
Fixes#9137
Move scroll bar drawing into HaikuControlLook
Added B_SCROLLABLE flag to BControlLook
Update FakeScrollBar in Appearance to also draw using HaikuControlLook.
Focus works on scroll bars again, used by FakeScrollBar... and probably
nowhere else.
Added private _ScrollingEnabled() convenience method to BScrollBar and
use it in a few places making.
Create ScrollBarPrivate.h header to share a couple of scroll bar related
enums with HaikuControlLook that come from BeOS Scroll Bar prefs.
Stuff arrow_direction enum into BScrollBar::Private as it has been
succeeded by a similar enum already present in BControlLook and is only
around now for BScrollBar::Private::DrawScrollBarButton.
Change-Id: Idc31ee41de091ba45ded2f0315a004af00143803
Some users of MK_ERROR pass in parameters from a variable called "res",
which is obviously not what they want to do, as that will use this "res"
and not theirs.
Spotted by Clang.
This reverts commit c558f9c8fe.
This reverts commit 44f24718b1.
This reverts commit a69cb33030.
This reverts commit 951182620e.
There have been multiple reports that these changes break mounting NTFS partitions
(on all systems, see #14204), and shutting down (on certain systems, see #12405.)
Until they can be fixed, they are being backed out.
* define compat_thread_info, compat_rlim_t, compat_rlimit and
compat_thread_creation_attributes to be used when applicable in compatibility
mode.
* handle 32-bit types in _user_spawn_thread(), _user_get_thread_info(),
_user_get_next_thread_info(), _user_getrlimit(), _user_setrlimit(),
other syscalls are compatible as is.
* init TLS for compatibility mode threads.
Change-Id: I483ba95e6198ddac9d240671bcb56fcd2ad831d2
* in load_image_internal(), elf32_load_user_image checks whether the binary
format requires the compatibility mode.
* we then set up the flag THREAD_FLAGS_COMPAT_MODE and the address space size.
* the compatibility mode runtime_loader is hardcoded with x86/runtime_loader.
* if needed, the 64-bit flat_args structure is converted in-place to its 32-bit
layout.
* a 32-bit flat_args isn't handled yet (a 32-bit team execs a 64-bit binary).
Change-Id: Ia6a066bde8d1774d85de29b48dc500e27ae9668f
* define compat_area_info to be used when applicable in
compatibility mode.
* handle 32-bit types in _user_reserve_address_range(), _user_get_area_info(),
_user_get_next_area_info(), _user_transfer_area(), _user_clone_area(),
_user_create_area(), _user_map_file(), other syscalls are compatible as is.
* _get_next_area_info() doesn't work well with a 32-bit address cookie (address
could be in 64-bit range). Instead use _compat_get_next_area_info() which uses
the area id as cookie, though the areas are not ordered by address any more.
Change-Id: Ic7519ca8824aa2d534b0f03ea75a1bf6ae321535
* handle 32-bit types in _user_send_signal(), _user_sigaction(), _user_sigwait(),
_user_set_signal_stack(), _user_restore_signal_frame(), other syscalls are
compatible as is.
Change-Id: I4c8dc47bfa80f36e363d444d2a5a7be6c621606d
* define compat_image_info, compat_extended_image_info
to be used for respective 32-bit types of syscalls in compatibility mode.
* handle 32-bit types in _user_register_image, _user_get_image_info,
_user_get_next_image_info, other syscalls are compatible as is.
Change-Id: Ibbd33e6796208dfa70d869e36bf745bc3e18d330
* define compat_flock, compat_timespec, compat_stat, compat_attr_info,
compat_fs_info, compat_fd_info to be used for respective 32-bit types
of syscalls in compatibility mode.
* handle 32-bit types in common_fcntl(), _user_read_stat(), _user_stat_attr(),
_user_read_index_stat, _user_read_fs_info, _user_write_fs_info,
_user_get_next_fd_info, other syscalls are compatible as is.
Change-Id: I5b372169fe142f67b81fd6c27e0627d5119ba687
This reverts commit 4f059c1fc5.
From discussion on the mailing list, it seems I was correct the first time
and Broadwell is Gen8. The confusion comes from the SER5/SOC distinction,
which is not in the Linux driver, and I still don't know which one it really
belongs in.
* File locks created by flock should only apply for the file descriptor
that was used to lock the file. Another fd on the same file should then
be denied access (calling flock should fail).
* fcntl based locks, however, are in a separate namespace and are global
to a team.
* This issue was found when running webkitpy test suite, and should close
ticket #13795.
* Don't use session or team as comparison in release_advisory_lock(), as
that information might not be available anymore (e.g. when called from
Team::~Team()). This fixes#14121.
Change-Id: I9efb96cfcefe7e72b0060220c635a665e7e643cc
Co-authored-by: Axel Dörfler <axeld@pinc-software.de>
* GCC7's static analysis found this one and it still
took #gcc and me a while to spot. Nice work gcc7!
* Should help DisplayPort training issues :-)
Change-Id: I9b47f13c95e622a2c08ff329ec9c3fc7e3db493d
* x86 uses a commpage with 32-bit addresses, incompatible with the one used for
x86_64. For this reason, a compatibility commpage is needed to support a 32-bit
userland on x86_64.
* define ADDRESS_TYPE as a macro for addr_t (default) or uint32 (for the 32-bit
commpage).
* team_create_thread_start_internal() will use clone_commpage_area() with
KERNEL_USER_DATA_BASE or clone_commpage_compat_area() with
KERNEL_USER32_DATA_BASE, to setup the correct commpage.
* real_time_clock (in compatibility mode) also updates the compatibility
commpage with real time data.
Change-Id: I61605077ce0beabab4439ef54edd1eae26f26fd2
* define ELF32_COMPAT to enable ELF32 macros.
* add a flag ELF_LOAD_USER_IMAGE_TEST_EXECUTABLE to only check the format.
It will be used by load_image_internal() to check which mode to use when
loading an image.
* in arch_elf_relocate_rel(), switch to elf_addr instead of addr_t, which
would be the wrong size for elf32 on x86_64.
* the ELF compat loader reuses the relevant parts of elf.cpp and arch_elf.cpp,
excluding for instance load_kernel_add_on() or dump functions.
Change-Id: Ifa47334e5adefd45405a823a3accbd12eee5b116
* also adjust BOOT_GDT_SEGMENT_COUNT for x86, the definition is used by the
boot loader.
* add some 32-bit definitions.
* add a UserTLSDescriptor class, this will be used by 32-bit threads.
Change-Id: I5b1d978969a1ce97091a16c9ec2ad7c0ca831656
the size of BAffineTransform is architecture dependent, so we transmit
its contents in a standard array instead.
Change-Id: I907110742168846a869a48bb2d116cc5292ec7d0
* free interrupts, free queues, return to init state.
* this will be used by virtio_net on interface uninit.
Change-Id: I7c1e6facc37cf6bfe19628576fdf2c0bac9e5c38
* enable to iterate on available entries in one interrupt call.
* negociate -> negotiate, (void *) -> (void* ), thanks axel and philippe!
Change-Id: Ie2d290797abcbf4c0f3cb5bfff71d091bb800fa6
It was limited to a uint32 and could for example be overflown by the
slab MemoryManager that uses size_t on a 64 bit system.
This aligns the signature with create_area() that already uses size_t
for the size argument.
Note that the function is currently private, so the impact should be
limited.
John's revert of my removal commit dragged back a bunch of cygwin/sunos
cruft, as well as re-adding RegExp.cpp to the host libshared, that we don't
need.
Instead, remove this and add libgnuregex_build to just the tools/keymap
link alongside the FreeBSD gnuregex case.
* At this point we want to avoid the user calling the callbacks
in the form of BMediaConnection. Instead we force to use the
BMediaInput and BMediaOutput versions.
TypeHandler:
- Add name field for presentation purposes. Adapt subclasses accordingly.
TypeHandlerRoster:
- Add methods to count and retrieve all type handlers for a given type,
and adjust CreateValueNode to allow for passing in an explicit handler.
Adjust callers accordingly.
VariablesViewState:
- Add helpers to store an explicitly chosen type handler for a node.
TypeHandlerMenuItem:
- ActionMenuItem subclass that takes care of reference management
for its contained type handler.
VariablesView:
- Add context menu for choosing type handlers if applicable. Implement
support for invoking said type handlers in a similar manner to explicit
typecasts.
- Adjust saving/restoring the view state so that hidden nodes are taken
into account as well. This is necessary since it may be the case that
the handler had to be applied to the hidden child rather than the visible
node (i.e. the BMessage handler when applied to a pointer to a BMessage).
All together, these changes allow choosing to switch between views of a type
when the Debugger has multiple handlers for it. For example, for BMessages
this allows switching between displaying the raw underlying structure vs
the decoded message content.
SMAP will generated page faults when the kernel tries to access user pages unless overriden.
If SMAP is enabled, the override instructions are written where needed in memory with
binary "altcodepatches".
Support is enabled by default, might be disabled per safemode setting.
Change-Id: Ife26cd765056aeaf65b2ffa3cadd0dcf4e273a96
The scheduler uses the load tracking logic to compute the load of
threads to be enqueued into the run queue. The time delta between the
last enqueue and the next enqueue may grow very large for threads
that mostly wait on conditions. In such cases the int "n" period count
variable would become too small and wrap around, leading to an
assertion failure.
For this to happen, the thread in question would have to have slept for
at least ~25 days and then wake up. Threads often affected would be ones
waiting for some other process to end, for example shell threads waiting
for a long running process to exit.
Fixes#13558.
Following recent changes to use libroot_build on Haiku also, it is now
actually impossible to build Haiku components on non-Haiku platforms
(BeOS R5, Dan0, BONE, Zeta), so we can remove any logic related to this.
This is only the first part; still to be removed are:
* SetSubDirSupportedPlatformsBeOSCompatible
* HOST_PLATFORM_BEOS_COMPATIBLE
* TARGET_PLATFORM_BEOS_COMPATIBLE
It was needed on macOS for a time when BUrl used regexes for parsing.
Now it does not, and so we can remove libshared's RegExp from build
libshared, and thus also libgnuregex.
The feature gives user ability to choose the position of notifications
out of Follow Deskbar, Lower Right, Lower Left, Upper Right and Upper
Left. Fixes#9749 - Notification_Server: add the ability to choose the
position of notifications (easy).
Signed-off-by: Adrien Destugues <pulkomandy@pulkomandy.tk>
The base VMCache class changed to the generic_ types with their
introduction in in *2011* (435c43f591),
but these classes were never properly adapted. These functions should not
be called here (they panic() -- but the base class only returns B_ERROR,
so that is a difference at least.)
Found by Clang's -Woverloaded-virtual.
* Expects its config files in /boot/home/test_launch.
* Uses standard I/O, and is always in user mode.
* Also added test_launch_roster command that is able to talk to the test
server like it does to the real thing.
Fixes#13733.
Unlike written in the ticket, the string length is 136 (not 135),
and the code checks for rejects anything greater or equal to the max
value. So set the constant to 137.
At present, does not work (it fails to properly set up interrupts,
resulting in thousands of unhandled ones which all but grinds the system
to a halt) but this at least is some progress.
Accelerant interface:
Introduce new hooks B_SET_BRIGHTNESS and B_GET_BRIGHTNESS. Brightness is
a float in the 0..1 range.
App_server:
Forward brightness things between BScreen and the accelerant.
intel_extreme:
Implement the hooks. Note that this only works for laptop panels, but
the driver will pretend to support it in other cases as well.
Screen preferences:
If the accelerant supports the B_GET_BRIGHTNESS hook, allow to set
brightness with a slider. Otherwise, the slidere is hidden and these
changes aren't visible.
The UDP service does not own the UDP sockets. When shutting down,
inform the bound sockets that the service is no longer available.
This allows subsequent method calls to error out cleanly.
Signed-off-by: Augustin Cavalier <waddlesplash@gmail.com>
Add a cleanup function net_stack_cleanup() that calls a new NetStack::ShutDown() method.
Make sure this method works even if the network stack was never initialized.
Signed-off-by: Augustin Cavalier <waddlesplash@gmail.com>
Was nothing but a slightly-stripped version of the nvidia driver,
not touched substantially in nearly 10 years, and the cards it was
originally going to support (but never got anywhere near so) have long since
been deprecated.
All of its prior functionality has been moved into HaikuControlLook.
This paves the way for customizeable control looks, which I intend to implement
in the future as part of decorators.
This is being pushed now because libbe ABI was already broken due to the
Notifications changes, so this is riding that so we only have to do a mass
rebuild once.
* Caching these values could result in missed
state changes.
* We may want to re-implement later.
* Highlights that all DP AUX communication is broken
during my testing.
Notifications preflet:
-Use sliders instead of text fields for width and timeout
-Remove icon size choice (mini icon looks horrible)
-Consolidate both "Enable" checkboxes into one
-Fix Revert button, remove Apply button, add Defaults button
-All changes to settings saved immediately
-Live example notification message shown when settings changes are made
-Add setting for individual apps to specify whether their notifications
should be muted
-Remove history list (to be implemented later)
BNotification class:
-BNotification records the signature and name of application that
created it
-New functions to get source application signature and name
Notification Server:
-Notification pop up view layout fixes and bold font size fix
-Remove notifications history from AppUsage class (will be saved in
cache instead)
-Remove vector of NotificationView objects which isn't needed
-Get source application info from notification object, not the received
message which is not reliable
* Use BDateFormat::GetDayName() to fetch weekday names.
* Use appropriate symbol width(Mon, Mo, M) depending on the frame width.
* Provide functionality to update day name header in case of locale
preferences change.
Signed-off-by: Adrien Destugues <pulkomandy@pulkomandy.tk>
* stop the extractor processing before deleting the source.
* crash happened in MediaPlayer FilePlaylistItem::_CalculateDuration().
* was a regression introduced in hrev50671.
* fixes#13156.
* Issue: In BCalendarView presently, there is no notion of a current date
and the current date is not highlighted. So in the deskbar tray calendar
which uses BCalendarView, we cannot know the current date once we change
the selected day.
* Fix: Make BCalendarView accept pulse messages, check for system date
with every pulse message and update the current date accordingly.
Highlight the current date by rendering its day number text in a
different color.
Signed-off-by: Adrien Destugues <pulkomandy@pulkomandy.tk>
ticket : #13592
* Eventually BoardSetups and target boards will go away.
* Include all known fdt's in the mmc image
* This gets us closer to target board-less arm
* Changing hardware is as simple as plugging a new fdt
into u-boot's startup script.
* Drop my original rpi1 work. We're targetting ARMv7
minimum.
Thus, BeOS compatibility is preserved (and there is no risk of
breaking GCC5<->GCC2 interoperation on hybrid builds.)
This commit only makes the actual change, the build fixes are
in the next commit.
This allows the loader to skip BFS partitions that don't contain
a bootable system. Useful when you have a BFS data partition that
comes before the system partition when iterated over.
Currently, only the UEFI loader actually returns more than one
possible partition.
BFont::Blocks is now implemented in ServerFont, via a call through the
app_server. It uses fontconfig to iterate through a charset of a font
and stores the defined blocks in a bitmap.
A new API was added, BFont::IncludesBlock, that will allow for arbitrary
testing of a given Unicode block. Since nothing is cached, searching
through an entire charset for a series of Unicode blocks can be quite
slow. In a given block there may be only 1 or 2 characters actually
defined so every character within a block needs to be checked until one
is found, which in a degenerate case will mean the entire block is
checked.
Signed-off-by: Axel Dörfler <axeld@pinc-software.de>
* This allows KPath to not allocate a buffer when initialized
without path.
* Added test cases for this.
* Added test for LockBuffer().
* Enhanced tests to allow building them in debug mode.
* Moved calling vfs_normalize_path() into own private method.
* Improved error codes; B_NO_MEMORY is now only returned if the
allocation actually failed.
* If used with LAZY_ALLOC, Path() and LockBuffer() are now allowed
to return a NULL path.
When both Backgrounds and Screen are open, if the workspace color is changed
in Backgrounds the monitor preview in Screen will now refresh to the new color.
Also added a BAlert in BackgroundsView.cpp when failing to change the
background image.
Signed-off-by: Adrien Destugues <pulkomandy@pulkomandy.tk>
Fixes#13286.
* It's very important to use a negative value to identify
non valid or uninitialized connections. Additionally, it's preferred
to don't interfere with media_kit types as long as the framework use
it in the backend.
* 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.
... 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.
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>
* 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.
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.
- 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.
* 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.
