_lwp_detach(2) [netbsd man page]

_LWP_DETACH(2)						      BSD System Calls Manual						    _LWP_DETACH(2)

NAME

     _lwp_detach -- detach a light-weight process

LIBRARY

     Standard C Library (libc, -lc)

SYNOPSIS

     #include <lwp.h>

     int
     _lwp_detach(lwpid_t lwp);

DESCRIPTION

     _lwp_detach() causes a light-weight process to become detached, having the same effect as if the LWP was created with the LWP_DETACHED flag.

     The resources associated with a detached LWP will be automatically reclaimed by the system when the LWP exits.  Conversely, an attached LWP's
     resources will not be reclaimed until its status is reported to another LWP via _lwp_wait(2).

RETURN VALUES

     A 0 value indicates that the call succeeded.  A -1 return value indicates an error occurred and errno is set to indicate the reason.

ERRORS

     [EINVAL]  The LWP is already detached.

     [ESRCH]   No LWP can be found in the current process corresponding to that specified by lwp.

SEE ALSO

     _lwp_create(2), _lwp_wait(2)

HISTORY

     The _lwp_detach() system call first appeared in NetBSD 5.0.

BSD
								 January 20, 2007							       BSD

_LWP_WAIT(2)						      BSD System Calls Manual						      _LWP_WAIT(2)

NAME

     _lwp_wait -- wait for light-weight process termination

LIBRARY

     Standard C Library (libc, -lc)

SYNOPSIS

     #include <lwp.h>

     int
     _lwp_wait(lwpid_t wlwp, lwpid_t *rlwp);

DESCRIPTION

     _lwp_wait() suspends execution of the calling LWP until the LWP specified by wlwp terminates.  The specified LWP must not be detached.  If
     wlwp is 0, then _lwp_wait() waits for any undetached LWP in the current process.

     If rlwp is not NULL, then it points to the location where the LWP ID of the exited LWP is stored.

RETURN VALUES

     Upon successful completion, _lwp_wait() returns a value of 0.  Otherwise, an error code is returned to indicate the error.

ERRORS

     _lwp_wait() will fail if:

     [ESRCH]	No undetached LWP can be found in the current process corresponding to that specified by wlwp.

     [EDEADLK]	The calling LWP is the only LWP in the process.

     [EDEADLK]	The LWP ID specified by wlwp is the LWP ID of the calling LWP.

     [EINTR]	_lwp_wait() was interrupted by a caught signal, or the signal did not have the SA_RESTART flag set.

SEE ALSO

     _lwp_create(2), _lwp_exit(2)

HISTORY

     The _lwp_wait() system call first appeared in NetBSD 2.0.

BSD
								 January 13, 2003							       BSD