- NetBSD Manual Pages
_LWP_UNPARK(2) NetBSD System Calls Manual _LWP_UNPARK(2)
Powered by man-cgi (2021-06-01).
Maintained for NetBSD
by Kimmo Suominen.
Based on man-cgi by Panagiotis Christias.
_lwp_unpark -- resume execution of a waiting LWP
Standard C Library (libc, -lc)
_lwp_unpark(lwpid_t lwp, const void *hint);
_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.
A 0 value indicates that the call succeeded. A -1 return value indicates
an error occurred and errno is set to indicate the reason.
[ESRCH] No LWP can be found in the current process corresponding to
that specified by lwp.
_lwp_park(2), _lwp_unpark_all(2), _lwp_wakeup(2)
The _lwp_unpark() system call first appeared in NetBSD 5.0.
NetBSD 9.99 January 20, 2007 NetBSD 9.99