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_LWP_UNPARK(2) 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. NetBSD 7.1.2 January 20, 2007 NetBSD 7.1.2