_LWP_UNPARK_ALL(2) BSD System Calls Manual _LWP_UNPARK_ALL(2)
_lwp_unpark_all -- resume execution of a waiting LWP
Standard C Library (libc, -lc)
_lwp_unpark_all(lwpid_t *targets, size_t ntargets, const void *hint);
_lwp_unpark_all() resumes execution of one or more light-weight processes listed in the array pointed to by targets.
The target LWPs are assumed to be waiting in the kernel as a result of calls to _lwp_park(). If any of the target LWPs are not currently
waiting, those LWPs will return immediately upon the next call to _lwp_park().
The value pointed to by ntargets specifies the size of the array pointed to by targets. If the targets argument is given as NULL, the maxi-
mum size of the array (expressed as the number of entries) is returned.
See _lwp_park(2) for a description of the hint argument.
If the maximum size of the targets array is not being queried, a return of 0 indicates that the call succeeded. A -1 return value indicates
an error occurred and errno is set to indicate the reason.
[EFAULT] The value specified for targets is invalid.
[EINVAL] The value specified for ntargets is out of range.
[ENOMEM] Insufficient resources are available to complete the operation.
_lwp_park(2), _lwp_unpark(2), _lwp_wakeup(2)
The _lwp_unpark_all() system call first appeared in NetBSD 5.0.
February 10, 2007 BSD