12-26-2006
I don't think that closing threads en masse is a great idea. Even if a question has been answered, there there may be better solutions and it is quite useful to post those. Or a prosposed solution may look good at first glance, but has problems of its own. There are a lot of good reasons to continue a discusssion even though an apparent answer has been found. And consider the thread you linked... I do not feel that splitting that thread into 10 or 20 threads would improve the forum.
But I don't allow myself to feel trapped in a thread. When I feel that further discussion is pointless, I just move on. I do not feel compelled to answer a second question in a thread just because I answered an earlier question. This attitude provides most of the benefits that would come from actually closing a thread.
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Please send an email to the administrator(s) of the board with thead ID and forum for any thread that is closed that you want open (or open that you want closed). All requested considered. Our apologies if sometimes threads are closed early. If this happens, please email :)
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hi,
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LEARN ABOUT SUNOS
thr_join
thr_join(3C) Standard C Library Functions thr_join(3C)
NAME
thr_join - wait for thread termination
SYNOPSIS
cc -mt [ flag... ] file...[ library... ]
#include <thread.h>
int thr_join(thread_t thread, thread_t *departed, void **status);
DESCRIPTION
The thr_join() function suspends processing of the calling thread until the target thread completes. The thread argument must be a member
of the current process and cannot be a detached thread. See thr_create(3C).
If two or more threads wait for the same thread to complete, all will suspend processing until the thread has terminated, and then one
thread will return successfully and the others will return with an error of ESRCH. The thr_join() function will not block processing of the
calling thread if the target thread has already terminated.
If a thr_join() call returns successfully with a non-null status argument, the value passed to thr_exit(3C) by the terminating thread will
be placed in the location referenced by status.
If the target thread ID is 0, thr_join() finds and returns the status of a terminated undetached thread in the process. If no such thread
exists, it suspends processing of the calling thread until a thread for which no other thread is waiting enters that state, at which time
it returns successfully, or until all other threads in the process are either daemon threads or threads waiting in thr_join(), in which
case it returns EDEADLK. See NOTES.
If departed is not NULL, it points to a location that is set to the ID of the terminated thread if thr_join() returns successfully.
RETURN VALUES
If successful, thr_join() returns 0. Otherwise, an error number is returned to indicate the error.
ERRORS
EDEADLK A joining deadlock would occur, such as when a thread attempts to wait for itself, or the calling thread is waiting for any
thread to exit and only daemon threads or waiting threads exist in the process.
ESRCH No undetached thread could be found corresponding to the given thread ID.
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|MT-Level |MT-Safe |
+-----------------------------+-----------------------------+
SEE ALSO
thr_create(3C), thr_exit(3C), wait(3C), attributes(5), standards(5)
NOTES
Using thr_join(3C) in the following syntax,
while (thr_join(0, NULL, NULL) == 0);
will wait for the termination of all non-daemon threads, excluding threads that are themselves waiting in thr_join().
SunOS 5.10 27 Mar 2000 thr_join(3C)