KVM_GETLWPS(3) | Library Functions Manual | KVM_GETLWPS(3) |
kvm_getlwps
—
#include <kvm.h>
#include <sys/param.h>
#include <sys/sysctl.h>
struct kinfo_lwp *
kvm_getlwps
(kvm_t
*kd, int pid,
unsigned long procaddr,
size_t 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 parameter 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) interface 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.
January 9, 2018 | NetBSD 9.0 |