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* cleanup.c (_pthread_handler_push): Same as below.
* create.c (pthread_create): Same as below.
* private.c (_pthread_new_thread): Rename "new" to "new_thread".
Since when has a C programmer been required to know C++?
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* implement.h: Add _PTHREAD_VALID macro.
* sync.c (pthread_join): Modify to use the new thread
type and _pthread_delete_thread(). Rename "target" to "thread".
Remove extra local variable "target".
(pthread_detach): Ditto.
* signal.c (pthread_sigmask): Move init of "us" out of inner block.
Fix instance of "this" should have been "us". Rename "us" to "thread".
* sched.c (pthread_setschedparam): Modify to use the new thread
type.
(pthread_getschedparam): Ditto.
* private.c (_pthread_find_thread): Fix return type and arg.
* implement.h: Remove _PTHREAD_YES and _PTHREAD_NO.
(_pthread_new_thread): Add prototype.
(_pthread_find_thread): Ditto.
(_pthread_delete_thread): Ditto.
(_pthread_new_thread_entry): Remove prototype.
(_pthread_find_thread_entry): Ditto.
(_pthread_delete_thread_entry): Ditto.
( _PTHREAD_NEW, _PTHREAD_INUSE, _PTHREAD_EXITED, _PTHREAD_REUSE):
Add.
* create.c (pthread_create): Minor rename "us" to "new" (I need
these cues but it doesn't stop me coming out with some major bugs
at times).
Load start_routine and arg into the thread so the wrapper can
call it.
* exit.c (pthread_exit): Fix pthread_this should be pthread_self.
* cancel.c (pthread_setcancelstate): Change
_pthread_threads_thread_t * to pthread_t and init with
pthread_this().
(pthread_setcanceltype): Ditto.
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* private.c: Added detailed explanation of the new thread
allocation scheme.
(_pthread_new_thread): Totally rewritten to use
new thread allocation scheme.
(_pthread_delete_thread): Ditto.
(_pthread_find_thread): Obsolete.
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* create.c (pthread_create): Start of rewrite. Not completed yet.
* private.c (_pthread_new_thread_entry): Start of rewrite. Not
complete.
* implement.h (_pthread_threads_thread): Rename, remove thread
member, add win32handle and ptstatus members.
(_pthread_t): Add.
* pthread.h: pthread_t is no longer mapped directly to a Win32
HANDLE type. This is so we can let the Win32 thread terminate and
reuse the HANDLE while pthreads holds it's own thread ID until
the last waiting join exits.
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* private.c (_pthread_delete_thread_entry): Destroy the thread
entry attribute object before deleting the thread entry itself.
* attr.c (pthread_attr_init): Initialise cancel_pending = FALSE.
(pthread_attr_setdetachstate): Rename "detached" to "detachedstate".
(pthread_attr_getdetachstate): Ditto.
* exit.c (_pthread_exit): Fix incorrect check for detachedstate.
* implement.h (_pthread_call_t): Remove env member.
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* private.c (_pthread_delete_thread_entry): Mutex locks removed.
Mutexes must be applied at the caller level.
(_pthread_new_thread_entry): Ditto.
(_pthread_new_thread_entry): Init cancelstate, canceltype, and
cancel_pending to default values.
(_pthread_new_thread_entry): Rename "this" to "new".
(_pthread_find_thread_entry): Rename "this" to "entry".
(_pthread_delete_thread_entry): Rename "thread_entry" to "entry".
* create.c (_pthread_start_call): Mutexes changed to
_pthread_count_mutex. All access to the threads table entries is
under the one mutex. Otherwise chaos reigns.
Sat Jul 25 23:16:51 1998 Ross Johnson <rpj@ixobrychus.canberra.edu.au>
* implement.h (_pthread_threads_thread): Move cancelstate and
canceltype members out of pthread_attr_t into here.
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* create.c (_pthread_start_call): Set thread priority. Ensure our
thread entry is removed from the thread table but only if
pthread_detach() was called and there are no waiting joins.
(pthread_create): Set detach flag in thread entry if the
thread is created PTHREAD_CREATE_DETACHED.
* pthread.h (pthread_attr_t): Rename member "detachedstate".
* attr.c (pthread_attr_init): Rename attr members.
* exit.c (pthread_exit): Fix indirection mistake.
* implement.h (_PTHREAD_THREADS_TABLE_INDEX): Add.
* exit.c (_pthread_vacuum): Fix incorrect args to
_pthread_handler_pop_all() calls.
Make thread entry removal conditional.
* sync.c (pthread_join): Add multiple join and async detach handling.
* implement.h (_PTHREAD_THREADS_TABLE_INDEX): Add.
* global.c (_pthread_threads_mutex_table): Add.
* implement.h (_pthread_once_flag): Remove.
(_pthread_once_lock): Ditto.
(_pthread_threads_mutex_table): Add.
* global.c (_pthread_once_flag): Remove.
(_pthread_once_lock): Ditto.
* sync.c (pthread_join): Fix tests involving new return value
from _pthread_find_thread_entry().
(pthread_detach): Ditto.
* private.c (_pthread_find_thread_entry): Failure return code
changed from -1 to NULL.
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pthread_exit() to use.
* private.c (_pthread_new_thread_entry): Initialise joinvalueptr to
NULL.
* create.c (_pthread_start_call): Rewrite to facilitate joins.
pthread_exit() will do a longjmp() back to here. Does appropriate
cleanup and exit/return from the thread.
(pthread_create): _beginthreadex() now passes a pointer to our
thread table entry instead of just the call member of that entry.
* implement.h (_pthread_threads_thread): New member
void ** joinvalueptr.
(_pthread_call_t): New member jmpbuf env.
* exit.c (pthread_exit): Major rewrite to handle joins and handing
value pointer to joining thread. Uses longjmp() back to
_pthread_start_call().
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* attr.c (pthread_attr_destroy): Fix merge conflicts.
(pthread_attr_getdetachstate): Fix merge conflicts.
(pthread_attr_setdetachstate): Fix merge conflicts.
* pthread.h: Fix merge conflicts.
* sync.c (pthread_join): Fix merge conflicts.
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* create.c (pthread_create): Arg to _pthread_new_thread_entry()
changed. See next entry. Move mutex locks out. Changes made yesterday
and today allow us to start the new thread running rather than
temporarily suspended.
* private.c (_pthread_new_thread_entry): _pthread_thread_table
was changed back to a table of thread structures rather than pointers.
As such we're trading storage for increaded speed. This routine
was modified to work with the new table. Mutex lock put in around
global data accesses.
(_pthread_find_thread_entry): Ditto
(_pthread_delete_thread_entry): Ditto
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* attr.c, implement.h, pthread.h, ChangeLog: Resolve CVS merge
conflicts.
* private.c (_pthread_find_thread_entry): Changes to return type
to support leaner _pthread_threads_table[] which now only stores
_pthread_thread_thread_t *.
(_pthread_new_thread_entry): Internal changes.
(_pthread_delete_thread_entry): Internal changes to avoid contention.
Calling routines changed accordingly.
* pthread.h: Modified cleanup macros to use new generic push and pop.
Added destructor and atfork stacks to _pthread_threads_thread_t.
* cleanup.c (_pthread_handler_push, _pthread_handler_pop,
_pthread_handler_pop_all): Renamed cleanup push and pop routines
and made generic to handle destructors and atfork handlers as
well.
* create.c (_pthread_start_call): New function is a wrapper for
all new threads. It allows us to do some cleanup when the thread
returns, ie. that is otherwise only done if the thread is cancelled.
* exit.c (_pthread_vacuum): New function contains code from
pthread_exit() that we need in the new _pthread_start_call()
as well.
* implement.h: Various additions and minor changes.
* pthread.h: Various additions and minor changes.
Change cleanup handler macros to use generic handler push and pop
functions.
* attr.c: Minor mods to all functions.
(is_attr): Implemented missing function.
* create.c (pthread_create): More clean up.
* private.c (_pthread_find_thread_entry): Implement.
(_pthread_delete_thread_entry): Implement.
(_pthread_new_thread_entry): Implement.
These functions manipulate the implementations internal thread
table and are part of general code cleanup and modularisation.
They replace _pthread_getthreadindex() which was removed.
* exit.c (pthread_exit): Changed to use the new code above.
* pthread.h: Add cancelability constants. Update comments.
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* cleanup.c (_pthread_cleanup_push): Implement.
(_pthread_cleanup_pop): Implement.
(_pthread_do_cancellation): Implement.
These are private to the implementation. The real cleanup functions
are macros. See below.
* pthread.h (pthread_cleanup_push): Implement as a macro.
(pthread_cleanup_pop): Implement as a macro.
Because these are macros which start and end a block, the POSIX scoping
requirement is observed. See the comment in the file.
* exit.c (pthread_exit): Refine the code.
* create.c (pthread_create): Code cleanup.
* implement.h (RND_SIZEOF): Add RND_SIZEOF(T) to round sizeof(T)
up to multiple of DWORD.
Add function prototypes.
* private.c (_pthread_getthreadindex): "*thread" should have been
"thread". Detect empty slot fail condition.
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* private.c (_pthread_getthreadindex): Implement.
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