the same name but different path. In case of usb_disk that is now loaded as
a boot module the driver got registered with a different path, which prevented
later rescans from working. USB mass storage should now work again.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25862 a95241bf-73f2-0310-859d-f6bbb57e9c96
what the ports of a team are up to without having to go through each port
individually.
* Enlarge the port id column so even large ids fit nicely.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25857 a95241bf-73f2-0310-859d-f6bbb57e9c96
and remove the then unneeded mutex_init() for them.
* Remove the workaround for allowing uninitialized mutexes on kernel startup.
As they are all initialized statically through the MUTEX_INITIALIZER() now
this is not needed anymore.
* An uninitialized mutex will now cause a panic when used to find possibly
remaining cases.
* Remove now unnecessary driver_settings_init_post_sem() function.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25812 a95241bf-73f2-0310-859d-f6bbb57e9c96
got a debugger_getchar hook, it just wasn't used yet. Not that there would be
any debugger add-on implementing that hook currently...
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25809 a95241bf-73f2-0310-859d-f6bbb57e9c96
mutex deadlocks more obvious.
* Fix wrong function name in panic string.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25808 a95241bf-73f2-0310-859d-f6bbb57e9c96
when hot-plugging a USB mass storage device. The legacy driver (usb_disk in
this case) was rescanned which locked the legacy driver mutex. The insertion
of the new device node caused the disk device manager (notified through node
monitoring) to try to scan the new node. As opening the node triggers
LegacyDevice::InitDevice() that locks the legacy driver mutex again a deadlock
occured.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25807 a95241bf-73f2-0310-859d-f6bbb57e9c96
syslog so syslogs always contain the revision number too (as does serial
output).
This is only necessary because the early part of the serial output (that
contains the revision number) does not make it into the syslog. So fixing that
might be the better way.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25804 a95241bf-73f2-0310-859d-f6bbb57e9c96
keymap there too.
* Add a config header where one can select what KDL keymap should be used
(currently only 'us' and 'sg' are available though).
* Provide a third keymap that is used when the alt modifier is used (the swiss
german keymap is pretty useless without alt as all the useful keys like
backslash and curly braces use alt).
Our KDL is so powerful and nice to use, the only thing that bothered me was
that I always had to think about where some of the special keys are located in
the US keymap. So this simple compile-time keymap switching provided to be
helpful for me and might be for others too. Keymaps for other layouts obviously
have to be written before this becomes really useful.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25803 a95241bf-73f2-0310-859d-f6bbb57e9c96
children, you either have dynamic or fixed children, never both.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25801 a95241bf-73f2-0310-859d-f6bbb57e9c96
* a driver can register children and have a fixed child (ie for a bus manager).
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25799 a95241bf-73f2-0310-859d-f6bbb57e9c96
be put into a boot_item in frame_buffer_console_init().
* The VESA driver now supports gettings the EDID information as well; this
is necessary now, since the app_server no longer takes over the mode the
boot loader had chosen.
* Note, we might want to do this via vm86 instead in the future, and remove
the kernel part again.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25786 a95241bf-73f2-0310-859d-f6bbb57e9c96
added to their parent. Currently, only the existence of B_FIND_MULTIPLE_CHILDREN
influences the priority.
* This makes it possible to register/probe intelligent busses earlier than
simple/generic busses.
* Reenabled the ISA bus manager using the new device architecture; the
ide_isa driver can and will now actually work.
* device_node::Probe() now sets the global sGenericContextPath for generic
nodes. This causes a special handling in _GetNextDriverPath().
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25779 a95241bf-73f2-0310-859d-f6bbb57e9c96
* Therefore, device_manager::rescan_node() now actually causes the
driver::rescan_child_devices() function to be called, instead of probing
again.
* Added a device_node::Reprobe() method that does what Rescan() did previously.
* Probe() should now also work with "dumb" busses that don't support type
information - it will now probe all of these nodes.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25778 a95241bf-73f2-0310-859d-f6bbb57e9c96
device is still referenced through the devfs and used right between deleting
and unpublishing.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25775 a95241bf-73f2-0310-859d-f6bbb57e9c96
file for hpet implementation. Not yet added to the build.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25773 a95241bf-73f2-0310-859d-f6bbb57e9c96
already a dead thread available. Fixes a race condition.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25754 a95241bf-73f2-0310-859d-f6bbb57e9c96
B_DEBUG_SPINLOCK_CONTENTION is defined to 1. It typedefs spinlock to a
structure (thus breaking BeOS binary compatibility), containing a
counter which is incremented whenever a thread has to wait for the
spinlock.
* Added macros for spinlock initialization and access and changed
code using spinlocks accordingly. This breaks compilation for BeOS --
the macros should be defined in the respective compatibility wrappers.
* Added generic syscall to get the spinlock counters for the thread and
the team spinlocks.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25752 a95241bf-73f2-0310-859d-f6bbb57e9c96
In these cases, the last partial page would have never been written back.
* This fixes bug #2282, and eventually others.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25747 a95241bf-73f2-0310-859d-f6bbb57e9c96
pipes in the shell, though the semantics is a little different: The
second command is invoked whenever the first command has written a
complete line. The line is passed as last argument to the second
command. The new command flag B_KDEBUG_PIPE_FINAL_RERUN causes the
second command to be invoked again (with NULL argument) after the
first command is done.
* Added kprintf_unfiltered() and kputs_unfiltered() which bypass the
pipe mechanism and directly print to the bluescreen/serial output.
* Moved most commands from debug.cpp to the new
debug_builtin_commands.cpp.
* B_KDEBUG_DONT_PARSE_ARGUMENTS commands don't get an argument anymore,
if it would consist of white space only.
* Added new debugger command return value B_KDEBUG_ERROR, which
indicates that executing the command failed. This return code will
abort a complete pipe.
* Since debugger commands can nest (i.e. one command can invoke another
one) the setjmp()/longjmp() mechanism to restore the stack after a
page fault in a command needs more than one jump buffer.
* Added abort_debugger_command(), which longjmp()s out of the currently
executed command. This will also abort the current pipe.
* When pagination is enabled pressing "a" will abort the running command
(as opposed to "q" which only disables the blue screen output, but
lets the command continue).
* Added debugger commands:
- "grep" which can be used to filter output by pattern. Removed the
"filter" command and the underlying mechanism that did that before.
- "head" which prints only the first lines of output of another
command.
- "wc" counts lines, words, and characters of another command's
output.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25744 a95241bf-73f2-0310-859d-f6bbb57e9c96
as it seems devfs should not take over ownership. The device is deleted
in republish_driver for legacy drivers before the call to devfs_unpublish_device
that in turn deletes the vnode. This looks generally suspicious to me as
the device pointer the devfs vnode may still use gets invalid for a certain
amount of time (until the node is unpublished). So maybe the devfs should
take ownership of the device afterall and it shouldn't be deleted by the
device_manager/legacy driver functions. Axel please review.
* Do not try to delete the IOScheduler for now as creating one is disabled
currently too.
This fixes the crash on rescans of legacy drivers as seen when unplugging
USB devices.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25729 a95241bf-73f2-0310-859d-f6bbb57e9c96
Instead we only allow temporary caches to be merged. This remedies the
problem that after fork() + join() there remains a superfluous cache
layer for all RAM areas.
I haven't tested it, but this might improve the jam situation
memory-wise (huge heap is committed one less time), though it might
worsen it performance-wise (lots of heap pages are moved with every
merge).
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25717 a95241bf-73f2-0310-859d-f6bbb57e9c96
new function merge_cache_with_only_consumer(), which is also used in
vm_cache_remove_area(), now.
* Added tracing for the merge case.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25716 a95241bf-73f2-0310-859d-f6bbb57e9c96
or busses/ide.
* This change makes the AHCI driver working again.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25705 a95241bf-73f2-0310-859d-f6bbb57e9c96
remains. This replaces the previous mechanism of switching the thread to
a dedicated death stack. We might consider moving more cleanup work to
the undertaker, but that seems a little more involved.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25704 a95241bf-73f2-0310-859d-f6bbb57e9c96
than a semaphore, and can already be used in the early boot process.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25689 a95241bf-73f2-0310-859d-f6bbb57e9c96
* Adjusted code using recursive locks respectively. The initialization
cannot fail anymore, and it is possible to use recursive locks in the
early boot process (even uninitialized, if in BSS), which simplifies
things a little.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25687 a95241bf-73f2-0310-859d-f6bbb57e9c96
* Use vm86 mode to call the VESA BIOS to do the actual mode switching by
providing an ioctl in the vesa driver.
* Fix vm86.h.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25680 a95241bf-73f2-0310-859d-f6bbb57e9c96
* Current linking scheme does not always export arch specific symbols from the
kernel. Merging all compiled arch stuff into a single .o file (and linking
that to the kernel) fixes it.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25679 a95241bf-73f2-0310-859d-f6bbb57e9c96
* List the sum of pages used by a cache tree in the line printed for the
root cache.
* Also print the amount of committed memory per cache (and the sum for
the tree), and allow sorting the list by it ("-c" switch).
* Added usage text.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25675 a95241bf-73f2-0310-859d-f6bbb57e9c96
#2265.
* Device::InitDevice()/UninitDevice() are called from outside of the device
manager, so they better lock it.
* Turned off debug output in devfs and the device manager.
* Fixed debug output in devfs to print the actual vnode/cookie values, instead
of the structures the VFS passes in now.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25670 a95241bf-73f2-0310-859d-f6bbb57e9c96
all busses now. This should help with broken controllers that don't advertize
their capabilities correctly.
* Maybe we want to have a list that translates some types for certain devices,
too.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25667 a95241bf-73f2-0310-859d-f6bbb57e9c96
* Moved devfs from fs/ to device_manager/, and separated the legacy driver
support from it.
* Removed fast_log module.
* There are a couple of (temporary) regressions, though:
- legacy SATA and ISA IDE support is disabled, the drivers haven't been
ported yet.
- The not yet used ATA bus manager hasn't been ported yet, either.
- AHCI changes have not been tested.
- the listdev command has been removed from the build (as it currently
doesn't work anymore).
- device manager generated IDs currently are not freed anymore when a device
node is removed.
- generic drivers can't yet use the new driver architecture.
- simple busses that do not support device types won't work yet.
- legacy driver publishing/unpublishing (ie. what USB needs) has not been
tested, and may be broken.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25662 a95241bf-73f2-0310-859d-f6bbb57e9c96
additional info (offset, size, used pages, areas), sorting the trees
by used pages.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25633 a95241bf-73f2-0310-859d-f6bbb57e9c96
function requesting the allocation.
* The "allocations" commands does also print the caller and can filter
by caller, now.
* Added new "allocations_per_caller" command, which sums up allocations
per caller and prints them in a table sorted by size or count.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25632 a95241bf-73f2-0310-859d-f6bbb57e9c96
PTHREAD_SCOPE_SYSTEM which makes the implementation rather simple.
* This closed ticket #2242.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25628 a95241bf-73f2-0310-859d-f6bbb57e9c96
- *pathconf() now uses statvfs and fs_info data when appropriate. It should also check for file type though, some only apply to directory or others.
- added confstr(_CS_PATH) with a sensible default.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25625 a95241bf-73f2-0310-859d-f6bbb57e9c96
vm_page_write_modified_pages(), save that it only writes pages in the
given range.
* Added vm_page_schedule_write_page_range() which schedules all modified
pages in the given cache's range for writing by the page writer.
* Added _kern_sync_memory() syscall and the msync() POSIX function.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25620 a95241bf-73f2-0310-859d-f6bbb57e9c96
and actually shows the sign (before, it would just absorb it).
* On calling floating() from vsnprintf(), the order of the "fieldWidth", and
"flags" parameters were mixed, causing some strange output.
* Minor cleanup.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25611 a95241bf-73f2-0310-859d-f6bbb57e9c96
* The new function vm86_do_int(struct vm86_state *state, uint8 vec) provides a
facility to call BIOS interupt handlers. The function must only be called from
a user thread context because the lower 1MB of the address space is used.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25610 a95241bf-73f2-0310-859d-f6bbb57e9c96
* Add a "fault_callback" to the thread structure which is called when a
unhandled page fault happens in user space. A SIGSEGV will only be sent
if the callback returns "true".
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25609 a95241bf-73f2-0310-859d-f6bbb57e9c96
* For vm86 mode the kernel stack top is adjusted -> do not rely on the
kernel_stack_base + KERNEL_STACK_SIZE calculation.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25608 a95241bf-73f2-0310-859d-f6bbb57e9c96
* In vm86 mode CS will have arbitrary values so we check for both USER_CODE_SEG
and the VM flag in EFLAGS. This is also done when entering interrupt gates.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25607 a95241bf-73f2-0310-859d-f6bbb57e9c96
* The IO permission bitmap is always checked for virtual 8086 mode tasks.
Make sure it is invalid.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25605 a95241bf-73f2-0310-859d-f6bbb57e9c96
* Made the pthread_cond_t internals public. This is necessary to support
process shared condition variables. Fixed initializer macro.
* Made the pthread_rwlockattr_t structure opaque.
* pthread_t is no longer typedef'ed to int. It's the pointer to the
internal _pthread_thread structure.
* Removed __get_pthread(). pthread_self() can be used instead.
* No longer tunnel the pthread exit value through Haiku's thread exit
value. We do have a separate field in the _pthread_thread structure
for it, now.
* Handle detaching of threads correctly.
* pthread_rwlockattr_{g,s}etpshared() use the
PTHREAD_PROCESS_{SHARED,PRIVATE} constants, now.
* Commented out yet unsupported structures (barriers, spinlocks).
* Rebuilt APR optional package. The pthread changes weren't binary
compatible.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25582 a95241bf-73f2-0310-859d-f6bbb57e9c96
respectively other gcc version on a Haiku compiled with gcc 2 or gcc 4.
The libraries for such an executable are first searched in "gcc4"
respectively "gcc2" subdirectories of the standard search path
directories. If not found there, we try again with the standard paths.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25532 a95241bf-73f2-0310-859d-f6bbb57e9c96
compatible with what our code assumed (pointers to objects of
TraceEntry and its POD base class trace_entry aren't identical
anymore).
* Added optional stack traces for ktrace_printf() output in the kernel.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25531 a95241bf-73f2-0310-859d-f6bbb57e9c96
Changed condition variables so that it is allowed to block (e.g. lock
mutexes etc.) between Add() and Wait(). This fixes#2059, since the
block writer used them this way and could thusly fail to wait for a
condition variable, causing a temporary stack object to be used past its
lifetime.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25525 a95241bf-73f2-0310-859d-f6bbb57e9c96
* Use find_directory() for the hash for preloaded modules. I am not sure this
patch is needed, since it only concerns the hash. Please review.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25511 a95241bf-73f2-0310-859d-f6bbb57e9c96
* Renamed main.c to main.cpp
* Use find_directory() to construct the Bootscript path.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25509 a95241bf-73f2-0310-859d-f6bbb57e9c96
Use find_directory() to find the runtime_loader when starting teams.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25506 a95241bf-73f2-0310-859d-f6bbb57e9c96
to contain headers shared by kernel and userland (mainly libroot).
* Moved quite a few private kernel headers to the new location. Split
several kernel headers into a shared part and one that is still kernel
private. Adjusted all affected Jamfiles and source in the standard x86
build accordingly. The build for other architectures and for test code
may be broken.
* Quite a bit of userland code still includes private kernel headers.
Mostly those are <util/*> headers. The ones that aren't strictly
kernel-only should be moved to some other place (maybe
headers/private/shared/util).
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25486 a95241bf-73f2-0310-859d-f6bbb57e9c96
particularly efficient.
* pthread_mutex implementation:
- Removed the pthread_mutex_t indirection (the type was a pointer to
the actual structure which was allocated on the heap), as it made
sharing the mutex between processes impossible.
- Removed the distinction between process shared and non-shared
mutexes. Benaphores work just as well in shared memory, so we always
use them.
* Fixed some static initializer macros. PTHREAD_COND_INITIALIZER is
still broken, since it doesn't work in C code.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25481 a95241bf-73f2-0310-859d-f6bbb57e9c96
* Added comment clarifying the use of reader_count and writer_count.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25474 a95241bf-73f2-0310-859d-f6bbb57e9c96
address space that is fully locked and marked B_KERNEL_AREA. It can
thus be accessed by the kernel without additional checks.
* For each userland thread we do create a user_thread structure in that
area. The structure is accessible from userland via TLS, using the
private get_user_thread() function.
* Introduced private userland functions [un]defer_signals(). They can be
used to cheaply disable/re-enable signal delivery. They use the
user_thread::defer_signals/pending_signals fields which are
checked/updated by the kernel.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25451 a95241bf-73f2-0310-859d-f6bbb57e9c96
changes to the area (delete, resize, clone) from userland.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25450 a95241bf-73f2-0310-859d-f6bbb57e9c96
prints to stdout, but only until the program and its dependencies are
loaded. Failed attempts to load add-ons and the like doesn't pollute
stdout anymore.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25437 a95241bf-73f2-0310-859d-f6bbb57e9c96
and pthread_mutex_timedlock() which were waiting system time relative
although their timeout parameter is Epoch relative.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25435 a95241bf-73f2-0310-859d-f6bbb57e9c96
signal mask as required. and also makes my recent return value fix
unnecessary, since __longjmp_return() already does that.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25430 a95241bf-73f2-0310-859d-f6bbb57e9c96
* Added BDiskDeviceRoster::GetDiskSystem() method, that can get a disk system
by short/pretty/module name - since they should all be unique, I put them
in a single namespace, please complain if you don't like that :-)
* Cleaned up DiskSystem.h and DiskDeviceRoster.h according to the updated
header guidelines.
* Renamed ntfs pretty name from "ntfs File System" to "Windows NT File System".
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25414 a95241bf-73f2-0310-859d-f6bbb57e9c96
* Made the access strategy to vnode::advisory_locking consistent.
get_advisory_locking() was guarding it with sVnodeMutex,
create_advisory_locking() was using atomic_pointer_test_and_set(), and
release_advisory_lock() just set it unguardedly. We do use sVnodeMutex
consequently, now.
* Beautified create_advisory_locking() (got rid of the gotos,
reorganized the control flow).
* Fixed race conditions in acquire_advisory_lock(). It was always
unlocking and relocking the advisory_locking object when it didn't
have to wait, but in the meantime someone else could have changed the
locking situation. Reorganized the control flow, so that it only drops
the lock when it has to fail or wait. Using create_advisory_locking()
upfront simplifies the code quite a bit (and fixes another race
condition).
APR's testprocmutex test seems happy now, at least.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25407 a95241bf-73f2-0310-859d-f6bbb57e9c96
arguments they get a single thread_creation_attributes structure now.
* Added stack_address and stack_size to thread_creation_attributes,
which allow to specify the stack size or the stack to be used for the
new user thread.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25389 a95241bf-73f2-0310-859d-f6bbb57e9c96
* Fixed operator=(): the second argument of SetTo() is a boolean (normalize),
not the length of the buffer.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25382 a95241bf-73f2-0310-859d-f6bbb57e9c96
simply created as files in /boot/var/shared_memory/. The Bootscript
clears the directory.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25374 a95241bf-73f2-0310-859d-f6bbb57e9c96
* Changed the semantics of unnamed semaphores. Before parent and child
of a fork() would always share an earlier created semaphore. Now we do
that only, if the "shared" parameter of sem_init() was true. That's
still not quite the behavior Linux and Solaris have, but should be
perfectly fine with how reasonable code would use the API.
* There's a global table for shared unnamed semaphores now. ATM a
semaphore is leaked when no one explicitly destroys it (just as with
named sems).
* Enforce per-team and global semaphore number limits.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25362 a95241bf-73f2-0310-859d-f6bbb57e9c96
not supposed to be passed to pathconf() or sysconf().
* Added POSIX semaphore related macros.
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* Allow userland teams to create areas below 1 MB when requested specifically.
* Note, this is a temporary solution - see the comments in the code.
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* When initializing an unnamed semaphore failed, it would be deleted
twice.
* The user structure pointer wasn't correctly passed when initializing
named semaphores.
* When opening a named semaphore failed after it has already been
published, it is now unlinked again.
* The timeout passed to sem_timedwait() is relative to the Epoch. We
need to offset to system time.
* Added TODO regarding a per team semaphore limit.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25345 a95241bf-73f2-0310-859d-f6bbb57e9c96
* Renamed the old kernel_posix[_arch...].o to kernel_lib_posix...
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Realtime option group). The implementation should be complete, but is
totally untested yet.
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actually pointing to userland. This saves checks in the net stack.
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the socket first, so the FD open flags are in sync with that. Fixes
situations where a socket accept()ed from a non-blocking listener socket
wouldn't have O_NONBLOCK set.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25288 a95241bf-73f2-0310-859d-f6bbb57e9c96
* Trivial adjustments of code using mutexes. Mostly removing the
mutex_init() return value check.
* Added mutex_lock_threads_locked(), which is called with the threads
spinlock being held. The spinlock is released while waiting, of
course. This function is useful in cases where the existence of the
mutex object is ensured by holding the threads spinlock.
* Changed the two instances in the VFS code where an IO context of
another team needs to be locked to use mutex_lock_threads_locked().
Before it required a semaphore-based mutex implementation.
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table. This is not necessary, but allows for a better solution fo how to
lock the IO context of another team.
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that can unlock the mutex, so one bit is sufficient.
* Added cutex_init_etc() which has an additional "flags" parameter.
The only specifyable flag is CUTEX_FLAG_CLONE_NAME, which causes the
function to strdup() the given name and free() its copy in
cutex_destroy().
* cutex_destroy() does now unblock waiting threads.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25280 a95241bf-73f2-0310-859d-f6bbb57e9c96
name, couldn't resist :-P). It's semantically equivalent to a mutex,
but doesn't need a semaphore (it uses thread blocking and a simple
queue instead). Initialization can't fail. In fact it is ready to use
without initialization when living in the bss segment, also in the
early boot process. It's as fast as a benaphore in cases of low lock
contention, and faster otherwise. Only disadvantage is the higher
immediate memory footprint of 16 bytes.
* Changed how the "thread" and "threads" debugger commands list the
objects they are waiting for. Cutexes are also included.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25276 a95241bf-73f2-0310-859d-f6bbb57e9c96
the selecting thread, which has obviously no effect.
* Changed select_info::events to vint32. It is now updated atomically.
This removes a race condition when concurrent threads would notify at
the same time.
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select_fd() first added the select info to the IO context and then
called select() on the descriptor, a close() called at the same time
could already deselect the events and close the descriptor before
select_fd() was done with select(). select_fd() does now keep an own
open reference while selecting the events and add the select info
afterwards to the IO context (if the FD is still current).
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25266 a95241bf-73f2-0310-859d-f6bbb57e9c96
64-bit safe version of atomic_test_and_set() for pointers:
atomic_pointer_test_and_set().
* The VFS is now using this function (it's not used anywhere else in the
kernel this way).
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25260 a95241bf-73f2-0310-859d-f6bbb57e9c96
This fixes bug #1900 for real.
* Rearranged find_page_candidate() a bit, removed duplicate code, added a panic
in case the marker state is invalid.
* Some cleanup.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25255 a95241bf-73f2-0310-859d-f6bbb57e9c96
sPageLock. This could easily mess up the page queue.
* Now, remove_page_marker() gets the lock itself. This fixes bug #1900.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25250 a95241bf-73f2-0310-859d-f6bbb57e9c96
* cache paranoia was always enabled.
* Changed from paranoia on/off to levels. Adjusted the macros to take a
level argument.
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defined/undefined to numeric values (0 for undefined). This allows for
trace levels.
* Set SYSCALL_TRACING_IGNORE_KTRACE_OUTPUT default to 1, since this is
what one usually wants.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25213 a95241bf-73f2-0310-859d-f6bbb57e9c96
modules could use it. Moved the tracing_stack_trace definition out of
the conditional section instead.
* Made the TraceOutput::Print()/PrintStackTrace() method no-ops when
tracing is disabled.
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twice when running the OpenSSH "forwarding" test, which corrupts the
slab's object list. It's not quite clear to me yet why that happens.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25208 a95241bf-73f2-0310-859d-f6bbb57e9c96
* Added "mode" parameter to set_paranoia_check(), which specifies
whether the check is supposed to already exist/not exist yet. This
allows for, as it turns out, very useful additional tests. Added
{ADD,UPDATE}_PARANOIA_CHECK macros that imply the used "mode"
parameter.
* PARANOIA_SLOT_COUNT was accidentally redefined in the source file.
* Fixed remove_paranoia_check(). It didn't remove anything.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25207 a95241bf-73f2-0310-859d-f6bbb57e9c96
* Added capture_tracing_stack_trace() which allocates space in the
tracing buffer and captures the stack trace according to the given
parameters.
* Added TraceOutput::PrintStackTrace() to print a stack trace thus
created.
* Added TraceEntry::DumpStackTrace() callback which is supposed to print
a stack trace for the entry, if it can do that.
* Added "--stacktrace" switch to the "traced" command, which causes the
stack traces for all entries that have one to be printed as well.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25205 a95241bf-73f2-0310-859d-f6bbb57e9c96
library, and add-on search paths. Can be removed again, when certain
optional packages have been moved to /boot/common.
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so that it now only checks for the type that allow locking.
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point where the argument vector has already been copied to the kernel.
Before it was crashing when the syscall provided a bad address.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25167 a95241bf-73f2-0310-859d-f6bbb57e9c96
- get_new_fd() now checks if we are dealing with attributes before deciding to
bail out on a locked vnode.
- Enabled locking in MailSettings again as it now works.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25162 a95241bf-73f2-0310-859d-f6bbb57e9c96
separate functions and made the set errno correctly.
* Added RLIMIT_CORE case. We don't support core dumps, but setting them
to disabled shouldn't fail anyway.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25141 a95241bf-73f2-0310-859d-f6bbb57e9c96
unlockpt(), which provide a portable way of opening a pty.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25134 a95241bf-73f2-0310-859d-f6bbb57e9c96
cleverness to reschedule only, if it actually unblocked another thread.
Should have been the reason for #2152 (overall slowdown).
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25131 a95241bf-73f2-0310-859d-f6bbb57e9c96
* remove_transaction_listeners() was checking the events_pending field without
holding the sNotificatonLock - that should have been harmless (as we're in the
middle of deleting the transaction), but it now looks better.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25130 a95241bf-73f2-0310-859d-f6bbb57e9c96
* Added support for non-published condition variables. One has to call
Init() on those, and add entries directly with the
ConditionVariable::Add() method.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25110 a95241bf-73f2-0310-859d-f6bbb57e9c96
passing 0 as timeout flags or B_INFINITE_TIMEOUT as timeout, in which
case no timer will be used.
* Implemented missing thread_block_with_timeout().
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25104 a95241bf-73f2-0310-859d-f6bbb57e9c96
respective Private* base class.
* Changed sigwait() and sigsuspend() to use thread_block() instead of a
condition variable.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25100 a95241bf-73f2-0310-859d-f6bbb57e9c96
thread_block(), thread_unblock(),...) that allow a thread to wait for
something without needing a semaphore or condition variable. It can
simply block and another thread can unblock it. Supports timeouts and
interrupting. Both semaphores and condition variables use this
common mechanism, now.
* Semaphores:
- Some simplifications due to the thread blocking mechanism.
- Changed locking order to sem -> thread. It was the other way around
before and when introducing the wait_for_objects() support I had
also introduced a situation where the locking was reverse, which
could potentially cause a dead lock on SMP systems.
- Instead of queueing thread structures, a semaphore queues
queued_thread entries now, which are created on the stack. The
thread::sem structure could thus be removed.
- Added sem_entry::net_count, which is sem_entry::count plus the
acquisition count of all waiting threads. This number is needed in
remove_thread_from_sem() and instead of computing it there we
maintain it.
- Fixed remove_thread_from_sem(). It would not unblock threads, if
the sem count was <= 0.
- Made sem::last_acquirer unconditional. It is actually needed for
sem_info::latest_holder. Fixed fill_sem_info() accordingly.
- Added some optional tracing output, though only via ktrace_printf().
* Condition variables:
- Could be simplified significantly through the use of the thread
blocking mechanism. Removed a good deal of unnecessary code.
- Moved the ConditionVariableEntry "flags" parameter from Wait() to
Add(), and adjusted all places where condition variables are used
accordingly.
* snooze() uses thread_block_with_timeout() instead of a semaphore.
* Simplified thread interrupting in the signal and user debugger code.
Instead of separate functions for threads waiting on a semaphore or
condititon variable, we only have a single thread_interrupt(), now.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25099 a95241bf-73f2-0310-859d-f6bbb57e9c96
- If the hook of the timer we're cancelling is currently being
executed, we do now wait till it is finished. This is how the BeBook
specifies the function to behave.
- Periodic timers would not be cancelled, if their hook was being
invoked at the same time, since they weren't in the queue during
that time.
- Since we know the CPU on which the timer is scheduled (timer::cpu),
we don't have to look through any other CPU queue to find it.
- Fixed the return value. It should report whether the timer had
already fired, and was not always doing that.
* Added private add_timer() flag B_TIMER_ACQUIRE_THREAD_LOCK. It causes
the thread spinlock to be acquired before the event hook is called.
cancel_timer() doesn't wait for timers with the flag set. Instead we
check in the timer interrupt function after acquiring the thread
spinlock whether the timer was cancelled in the meantime. Calling
cancel_timer() with the thread spinlock being held does thus avoid any
race conditions and won't deadlock, if the event hook needs to acquire
the thread spinlock, too. This feature proves handy for some kernel
internal needs.
* The scheduler uses a B_TIMER_ACQUIRE_THREAD_LOCK timer now and
cancel_timer() instead of the no longer needed
_local_timer_cancel_event().
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25098 a95241bf-73f2-0310-859d-f6bbb57e9c96
