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Date: Sun, 9 Sep 2001 12:40:10 -0700 (PDT)
From: Steve Watt <steve@Watt.COM>
To: freebsd-gnats-submit@FreeBSD.org
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Subject: bin/30464: pthread mutex attributes -- pshared
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>Number:         30464
>Category:       bin
>Synopsis:       pthread mutex attributes -- pshared
>Confidential:   no
>Severity:       non-critical
>Priority:       medium
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Sun Sep 09 12:50:01 PDT 2001
>Closed-Date:
>Last-Modified:
>Originator:     Steve Watt
>Release:        4.3-STABLE 2001-04-24
>Organization:
>Environment:
FreeBSD wattres.Watt.COM 4.3-STABLE FreeBSD 4.3-STABLE #9: Sun May 20 13:25:38 PDT 2001     root@wattres.Watt.COM:/old/usr/obj/usr/src/sys/WATTRES  i386

>Description:
The pshared attribute is not mentioned on the pthread_mutexattr_* manual page, although "man pthread_mutexattr_getpshared" gets you that page.

Also, the functions pthread_mutexattr_{get,set}pshared are not implemented, even though POSIX requires them (yes, even if you don't support anything but PTHREAD_PROCESS_PRIVATE).
>How-To-Repeat:
man pthread_mutexattr_getpshared
search for pshared

Attempt to compile the following program:
#include <pthread.h>

int main(int argc, char **argv) {
    pthread_mutexattr_t ma;

    pthread_mutexattr_init(&ma);
    pthread_mutexattr_setpshared(&ma, PTHREAD_PROCESS_PRIVATE);

    exit(0);
}

>Fix:
Add the pthread_mutexattr_{g,s}etpshared() functions, just like the rwlock has.

Add mention of them to the man page.
>Release-Note:
>Audit-Trail:
>Unformatted:

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