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_lwp_setprivate(2) [netbsd man page]

_LWP_GETPRIVATE(2)					      BSD System Calls Manual						_LWP_GETPRIVATE(2)

NAME
_lwp_getprivate, _lwp_setprivate -- get and set light-weight process private data LIBRARY
Standard C Library (libc, -lc) SYNOPSIS
#include <lwp.h> void * _lwp_getprivate(void); void _lwp_setprivate(void *ptr); DESCRIPTION
_lwp_setprivate() stores the pointer to private data ptr in a location private to the LWP. _lwp_getprivate() returns the pointer to private data for the LWP. ERRORS
The _lwp_getprivate() and _lwp_setprivate() functions are always successful, and no return value is reserved to indicate an error. SEE ALSO
_lwp_makecontext(3) HISTORY
The _lwp_getprivate() and _lwp_setprivate() system calls first appeared in NetBSD 2.0. BSD
January 16, 2003 BSD

Check Out this Related 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
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