| Commit message (Collapse) | Author | Age | Files | Lines |
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thread trying to call pthread_exit() from a cleanup handler actually
works.
Submitted by: David Leonard <david.leonard@csee.uq.edu.au> OpenBSD
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Submitted by: Alexandre Snarskii <snar@paranoia.ru>
Approved by: John Birrell
Reminded me that I'd been sitting on this too long: snar@paranoia.ru
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testing this, fix MUTEX_TYPE_COUNTING_FAST. Recursive locks now work.
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Submitted by: Alec Wolman <wolman@cs.washington.edu>
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Made pthread_cond_wait() more similar to pthread_cond_timedwait().
PR: 8375
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make pthread_yield() more reliable,
threads always (I hope) preempted at least every 0.1 sec, as intended.
PR: bin/7744
Submitted by: "Richard Seaman, Jr." <dick@tar.com>
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Submitted by: Daniel M. Eischen <eischen@vigrid.com>
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Submitted by: Daniel M. Eischen <eischen@vigrid.com>
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collector thread running after a fork.
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the thread kernel into a garbage collector thread which is started when
the fisrt thread is created (other than the initial thread). This
removes the window of opportunity where a context switch will cause a
thread that has locked the malloc spinlock, to enter the thread kernel,
find there is a dead thread and try to free memory, therefore trying
to lock the malloc spinlock against itself.
The garbage collector thread acts just like any other thread, so
instead of having a spinlock to control accesses to the dead thread
list, it uses a mutex and a condition variable so that it can happily
wait to be signalled when a thread exists.
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launching an application into space when someone tries to debug it.
The dead thread list now has it's own link pointer, so use that when
reporting the grateful dead.
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one renamed to SIGSUSPEND) to fix sigwait().
Submitted by: Daniel M. Eischen <eischen@vigrid.com>
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- Add support of a thread being listed in the dead thread list as well
as the thread list.
- Add a new thread state to make sigwait work properly. (Submitted by
Daniel M. Eischen <eischen@vigrid.com>)
- Add global variable for the garbage collector mutex and condition
variable.
- Delete a couple of prototypes that are no longer required.
- Add a prototype for the garbage collector thread.
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Now all I need is an alpha SMP box to port FreeBSD to :-)
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PR: 5961
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to fork. It is difficult to do real vfork in libc_r, since almost every
operation with file descriptsor changes _thread_fd_table and friends.
popen(3) works much better with this change.
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Fixed sign extension bug, caused undefined behavior if FILE live in stack.
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from style(9).
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UNIX Specification.
As with our standard mutexes, process shared locks are not supported at
this time.
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kernel needs.
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Submitted by: Daniel M. Eischen <eischen@vigrid.com>
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Submitted by: Daniel M. Eischen <eischen@vigrid.com>
PR: misc/7039
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getsockopt(). Use a separate variable for clarity, instead of
overloading an unrelated variable.
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are started instead of init (pid = 1). This allows an embedded
implementation quite like VxWorks, with (possibly) a single threaded
program running instead of init. The neat thing is that the same threaded
process can run in a multi-user workstation environment too.
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...is expected to conform to IEEE (``POSIX'') Std 1003.1c when it is
published.
to:
...conforms to ISO/IEC 9945-1 ANSI/IEEE (``POSIX'') Std 1003.1 Second
Edition 1996-07-12.
Discussed with: jb
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initialized mutex. Statically initialized mutexes are actually
initialized at first use (pthread_mutex_lock/pthread_mutex_trylock).
To prevent concurrent initialization by multiple threads, all
static initializations are now serialized by a spinlock.
Reviewed by: jb
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pthread_mutex routines. I've also tweaked pthread_create.3 to point to
pthread_cleanup_push(3) and pthread_cleanup_pop(3).
PR: 7450
Submitted by: Brian Cully <shmit@kublai.com>
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integral.
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had to wait for the thread to exit and if the caller didn't want the
thread exit status.
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signal handler installed for SIGCHLD. The ACE MT_SOCK_Test was hanging
as the result of being interrupted when it didn't expect to be.
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signal can arrive before the thread is woken from it's wait4. In this
case, don't return an EINTR, just set the thread state to running and
the wait4 wrapper will loop and get the exit status of the process.
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so much a "fix", rather a bandaid to buy time to fix it properly
within the thread engine.
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propagates a bug (that there is no poll wrapper in libc_r), but it
prevents GNU configure scripts from trying to use it in preference
to select. libc_r really needs to change it's wait interface to use
poll instead of select because poll is more a superset of select that
the other way around.
This should allow the Roxen web server to work out-of-the-box. It's
configuration intercae is kinda neat. The code isn't. Shiver. 8-)
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I/O for those applications that don't believe the return value of zero as
meaning that THERE ARE *NO* DESCRIPTORS READY.
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that might never be possible if the file was not opened in the corrent
mode. This prevents a hang for bad programs. Why do people code like that?
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seems to be tripping up a lot of applications.
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