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NetBSD 6.1.5 - man page for kvm_getlwps (netbsd section 3)

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KVM_GETLWPS(3)			   BSD Library Functions Manual 		   KVM_GETLWPS(3)

     kvm_getlwps -- access state of LWPs belonging to a user process

     Kernel Data Access Library (libkvm, -lkvm)

     #include <kvm.h>
     #include <sys/param.h>
     #include <sys/sysctl.h>

     struct kinfo_lwp *
     kvm_getlwps(kvm_t *kd, int pid, u_long procaddr, int *elemsize, int *cnt);

     kvm_getlwps() returns the set of LWPs belonging to the process specified by pid or procaddr
     in the kernel indicated by kd.  The number of LWPs found is returned in the reference param-
     eter cnt.	The LWPs are returned as a contiguous array of kinfo_lwp structures.  This memory
     is locally allocated, and subsequent calls to kvm_getlwps() and kvm_close() will overwrite
     this storage.

     Only the first elemsize bytes of each array entry are returned.  If the size of the
     kinfo_lwp structure increases in size in a future release of NetBSD the kernel will only
     return the requested amount of data for each array entry and programs that use kvm_getlwps()
     will continue to function without the need for recompilation.

     If called against an active kernel, the kvm_getlwps() function will use the sysctl(3) inter-
     face and return information about the process identified by pid; otherwise the kernel memory
     device file or swap device will be accessed and the process is identified by the location
     passed in paddr.

     kvm_getlwps() returns NULL on failure.

     kvm(3), kvm_close(3), kvm_geterr(3), kvm_getproc2(3), kvm_getprocs(3), kvm_nlist(3),
     kvm_open(3), kvm_openfiles(3), kvm_read(3), kvm_write(3)

     These routines do not belong in the kvm interface.

BSD					February 10, 2004				      BSD
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