_LWP_UNPARK_ALL(2) | System Calls Manual | _LWP_UNPARK_ALL(2) |
_lwp_unpark_all
—
#include <lwp.h>
ssize_t
_lwp_unpark_all
(const
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 ntargets argument specifies the size of the array pointed to by targets.
If the targets argument is given as
NULL
, the maximum size of the array (expressed as
the number of entries) is returned.
See _lwp_park(2) for a description of the hint argument.
_lwp_unpark_all
() function returns the
value 0 if successful; otherwise the value -1 is returned and the global
variable errno is set to indicate the error.
_lwp_unpark_all
() system call first appeared in
NetBSD 5.0.
February 10, 2007 | NetBSD 10.0 |