_lwp_unpark(2) [netbsd man page]

_LWP_UNPARK(2)						      BSD System Calls Manual						    _LWP_UNPARK(2)

NAME

     _lwp_unpark -- resume execution of a waiting LWP

LIBRARY

     Standard C Library (libc, -lc)

SYNOPSIS

     #include <lwp.h>

     int
     _lwp_unpark(lwpid_t lwp, const void *hint);

DESCRIPTION

     _lwp_unpark() resumes execution of the light-weight process lwp.

     The target LWP is assumed to be waiting in the kernel as a result of a call to _lwp_park().  If the target LWP is not currently waiting, it
     will return immediately upon the next call to _lwp_park().

     See _lwp_park(2) for a description of the hint argument.

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

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

SEE ALSO

     _lwp_park(2), _lwp_unpark_all(2), _lwp_wakeup(2)

HISTORY

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

BSD
								 January 20, 2007							       BSD

_LWP_KILL(2)						      BSD System Calls Manual						      _LWP_KILL(2)

NAME

     _lwp_kill -- send a signal to a light-weight process

LIBRARY

     Standard C Library (libc, -lc)

SYNOPSIS

     #include <lwp.h>

     int
     _lwp_kill(lwpid_t lwp, int sig);

DESCRIPTION

     _lwp_kill() sends the signal specified by sig to the light-weight process specified by lwp.  If the sig argument is given as 0 (zero),
     _lwp_kill will test for the existence of the target LWP, but will take no further action.

     Job control signals and uncatchable signals can not be directed to a specific LWP: if posted with _lwp_kill, they will affect all LWPs in the
     process.

     Signals will be posted successfully to suspended LWPs, but will not be handled further until the LWP has been continued.

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]  sig is not a valid signal number.

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

SEE ALSO

     _lwp_continue(2), _lwp_suspend(2), kill(2), sigaction(2), signal(7)

HISTORY

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

BSD
								 January 20, 2007							       BSD