src/lib/libpthread/thread/thr_attr_destroy.c, branch release/5.3.0_cvs

This commit was manufactured by cvs2svn to create tag

2004-11-04T19:12:42+00:00

'RELENG_5_3_0_RELEASE'.

This commit was manufactured to restore the state of the 5.3-RELEASE image.

Make the changes needed for libpthread to compile in its new home.

2002-09-16T08:45:36+00:00

The new libpthread will provide POSIX threading support using KSE.
These files were previously repo-copied from src/lib/libc_r.

Reviewed by:	deischen
Approved by:	-arch

To be consistent, use the __weak_reference macro from

2001-04-10T04:19:21+00:00

instead of #pragma weak to create weak definitions.

Suggested by:	bde

Add weak definitions for wrapped system calls. In general:

2001-01-24T13:03:38+00:00

	_foo - wrapped system call
	foo - weak definition to _foo

and for cancellation points:

	_foo - wrapped system call
	__foo - enter cancellation point, call _foo(), leave
	        cancellation point
	foo - weak definition to __foo

Change use of global _thread_run to call a function to get the
currently running thread.

Make all pthread_foo functions weak definitions to _pthread_foo,
where _pthread_foo is the implementation.  This allows an application
to provide its own pthread functions.

Provide slightly different versions of pthread_mutex_lock and
pthread_mutex_init so that we can tell the difference between
a libc mutex and an application mutex.  Threads holding mutexes
internal to libc should never be allowed to exit, call signal
handlers, or cancel.

Approved by:	-arch

$Id$ -> $FreeBSD$

1999-08-28T00:22:10+00:00

Add RCS IDs to those files without them.

1999-08-05T12:15:30+00:00

Fix copyrights (s/REGENTS/AUTHOR).

Suggested by:	tg
Approved by:	jb

Submitted by: John Birrell

1997-02-05T23:26:09+00:00

uthreads update from the author.

Submitted by: John Birrell

1996-08-20T08:22:01+00:00

Here are the diffs for libc_r to get it one step closer to P1003.1c
These make most of the thread/mutex/condvar structures opaque to the
user. There are three functions which have been renamed with _np
suffixes because they are extensions to P1003.1c (I did them for JAVA,
which needs to suspend/resume threads and also start threads suspended).

I've created a new header (pthread_np.h) for the non-POSIX stuff.

The egrep tags stuff in /usr/src/lib/libc_r/Makefile that I uncommented
doesn't work. I think its best to delete it. I don't think libc_r needs
tags anyway, 'cause most of the source is in libc which does have tags.

also:

Here's the first batch of man pages for the thread functions.
The diff to /usr/src/lib/libc_r/Makefile removes some stuff that was
inherited from /usr/src/lib/libc/Makefile that should only be done with
libc.

also:

I should have sent this diff with the pthread(3) man page.
It allows people to type

make -DWANT_LIBC_R world

to get libc_r built with the rest of the world. I put this in the
pthread(3) man page.  The default is still not to build libc_r.


also:
The diff attached adds a pthread(3) man page to /usr/src/share/man/man3.
The idea is that without libc_r installed, this man page will give people
enough info to know that they have to build libc_r.