curproc(9) [netbsd man page]

CURPROC(9)						   BSD Kernel Developer's Manual						CURPROC(9)

NAME

     curproc, curcpu, curlwp -- current process, processor, and LWP

SYNOPSIS

     #include <sys/proc.h>

     struct cpu_info *
     curcpu(void);

     struct proc *
     curproc(void);

     struct lwp *
     curlwp(void);

DESCRIPTION

     The following macros can be used to retrieve the current processor, process, and light-weight process (LWP), respectively:

	   1.	The machine-dependent curcpu() macro returns a pointer to a cpu_info structure containing information of the CPU that this thread
		is running on.

	   2.	The machine-independent curproc() macro refers to a pointer to the process currently running on this CPU.

	   3.	The curlwp() macro expands to a pointer to lwp structure, containing information about the current LWP.  This macro is machine-
		independent, but machine-dependent <machine/cpu.h> may redefine it.

SEE ALSO

     cpu_number(9), proc_find(9)

BSD
								   July 1, 2010 							       BSD

_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