to provide asynchrounous (or only synchronous, if asynchronous is not
supported) I/O request support. It will eventually replace
{read,write}_pages(). None of the FS implementations implement them
yet.
* Implemented some support functions for request-based I/O. File system
implementations can use do_fd_io() which passes an I/O request to the
layer responsible for a given FD, and do_iterative_fd_io(), which
translates a request for a file to subrequests for the underlying
device and passes them on. Both fall back to synchrounous processing
when the io() hook is not supported.
Furthermore added vfs_synchronous_io() which should be handy for the
devfs to perform io_requests synchronously for devices that don't
support the io() hook.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@26655 a95241bf-73f2-0310-859d-f6bbb57e9c96
added an IORequest::Init() version with that parameter. This makes
splitting an iovec array into IOBuffers/IORequests easier.
* Added IORequest::CreateSubRequest(). It creates and adds an IORequest
that covers a part of the range of the parent request, but may use
another file offset. This will be used e.g. in the way that the parent
request describes an I/O operation for a file while its subrequests
describe the same operation translated to the underlying device.
* Added IORequest::DeleteSubRequests(), which does the obvious. It's
also invoked in the destructor.
* Added method for iterating through subrequests.
* Made IORequestChunk::{Set,Reset}Status() protected. For both
subclasses some locking is needed (though different locking), so we
rather make this more explicit.
* Added IORequest::SetStatusAndNotify(), which is SetStatus() +
NotifyFinished() with proper locking.
* Changed the I/O request finished and iteration callback signatures.
The finished callback has got an additional "status" argument, since
the request itself may already be inaccessible at the time the
callback is executed.
* Changed IORequest::NotifyFinished(). The policy is now that if the
iteration callback fails, the method will do the finished
notifications. This simplifies things in the iteration callbacks.
* Fixed bug in IORequest::_CopyPhysical(): It didn't take into account
that the physical buffer could not be page aligned.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@26654 a95241bf-73f2-0310-859d-f6bbb57e9c96
B_OP_COPY which is about 2.4 times faster than the AGG version (but of
course less generic). The speed up is even better for smaller and even
scales.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@26652 a95241bf-73f2-0310-859d-f6bbb57e9c96
an invalid page state was supplied. The comment was misleading too,
as the pages weren't reserved upfront.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@26650 a95241bf-73f2-0310-859d-f6bbb57e9c96
* When drawing BBitmaps with scaling in the app_server, use a bilinear
filter when a bitmap has this flag set. (Hope nobody objects, otherwise
I can revert or improve this. Performance can certainly be improved, since
the AGG implementation is too generic. But that goes for the nearest
neighbor implementation as well.)
* Flags are uint32, fix app_server side code to declare them correctly. Use
appropriate link methods in BBitmap and ServerApp.
* Enable the BeOS compatibility mode for B_RGB32 (works just like B_RGBA32
in B_OP_ALPHA mode).
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@26649 a95241bf-73f2-0310-859d-f6bbb57e9c96
* adjust all drivers to take that into account
* fix UpdateText() signature in JSDSlider to avoid warning
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@26648 a95241bf-73f2-0310-859d-f6bbb57e9c96
- For simplicity we'll force using only insn common to 020 to 060, mostly to avoid unimplemented floating point ops in the kernel.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@26647 a95241bf-73f2-0310-859d-f6bbb57e9c96
children of the device and recreate them so that they are updated to any
changes. MainWindow::_Initialize() was using a stale BPartition pointer
after calling CommitModifications(). Now the pointer is recreated from the
id. Should fix#2548. Untested.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@26643 a95241bf-73f2-0310-859d-f6bbb57e9c96
* Renamed sModifiedTemporaryPages to sModifiedNoSwapPages to better
express what this variable is about.
* Changed tracking of sModifiedNoSwapPages. It really counts
non-swappable pages only, now (if swap support is enabled).
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@26641 a95241bf-73f2-0310-859d-f6bbb57e9c96
- Enabling all net_buffers code & ACL
- Asume contiguusness for outgoing packets
- Fix incorrect cleaning of btDevices
- Posting ACL data to the net_device Kernel module.
Sumarizing this enables ACL tranmision mode in the driver which starts to be "real network data" of the bt protocols not configuration as we had before
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@26638 a95241bf-73f2-0310-859d-f6bbb57e9c96
buffer lives in userland can easily be checked via IS_USER_ADDRESS.
* Added B_VIP_IO_REQUEST flag which will be used by the page writer and
should cause allocations to be made in a way that they cannot fail.
Not implemented yet, though.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@26632 a95241bf-73f2-0310-859d-f6bbb57e9c96
* Split IORequest::ChunkFinished() into OperationFinished() and
and SubrequestFinished(). Moved the notification part into a new
method NotifyFinished().
* Added new IOScheduler thread for notifying finished requests.
IOScheduler::_Finisher() hands over finished request to it, unless the
requests don't have callbacks. We need the separate thread, since the
callbacks can potentially reenter the scheduler and thus cause
deadlocks.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@26631 a95241bf-73f2-0310-859d-f6bbb57e9c96
versions of the AddressSpaceReadLocker constructor and SetTo(). When
true it will get a new reference to the address space.
* Changed vm_soft_fault(): Now it gets the address space as a
parameter (for page faults getting it happens in vm_page_fault()).
This should fix lock_memory_etc() for other teams -- it used the
correct address space before, but the invoked vm_soft_fault() always
used the current team's address space.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@26628 a95241bf-73f2-0310-859d-f6bbb57e9c96
- add 040 cpu and mmu stuff
- use leftover from the page root table to put interrupt vector table to set VBR to
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@26627 a95241bf-73f2-0310-859d-f6bbb57e9c96
* Init swap support in main().
* Added "bool swappable" parameter to
VMCacheFactory::CreateAnonymousCache(). A cache supporting swapping
is created when true. Adjusted invocations accordingly.
* The page writer does now write non-locked swappable pages (when
memory is low).
* Fixed header guard of VMAnonymousNoSwapCache.h.
* Swap support is compiled conditionally, controlled by the
ENABLE_SWAP_SUPPORT in src/system/kernel/vm/VMAnonymousCache.h. It is
disabled ATM. Since no swap files are added, it wouldn't have much
effect anyway.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@26625 a95241bf-73f2-0310-859d-f6bbb57e9c96
swappable, since that happens before we can initialize swap support
(which requires the later initialized VFS).
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@26623 a95241bf-73f2-0310-859d-f6bbb57e9c96
the new team. Otherwise it would lose it's properties (full lock,
B_KERNEL_AREA).
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@26622 a95241bf-73f2-0310-859d-f6bbb57e9c96
- Fix PincodeWindow to send the pincode commands dissapear after clicking
- Improve the debug output of bluetooth_server
- Handle all needed events for the pairing
- Simple request could send and receive the event before adding the request to the events wanted list. Inverted the order of this sequence.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@26614 a95241bf-73f2-0310-859d-f6bbb57e9c96
happens in the I/O scheduler thread, we need to use unlock_memory_etc().
Changed the IOBuffer::{Lock,Unlock}Memory() methods accordingly.
The test driver seems to be working stable, now.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@26609 a95241bf-73f2-0310-859d-f6bbb57e9c96
completed operations queue. That doesn't need to happen synchronously
either. So we have to restart the loop.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@26607 a95241bf-73f2-0310-859d-f6bbb57e9c96
helps to avoid stupid mistakes. The driver works again, though things
are still not stable.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@26605 a95241bf-73f2-0310-859d-f6bbb57e9c96
* Factored an _UnmountAndEjectVolume() method that takes a partition and mount
path out of the method with the same name that gets a BMessage.
* Remove the mount point only if it's in rootfs.
* Minor cleanup.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@26604 a95241bf-73f2-0310-859d-f6bbb57e9c96
