Pdelwapt —
remove a watchpoint in a process
Process Control Library (libproc, -lproc)
#include
<libproc.h>
int
Pdelwapt(
struct
ps_prochandle *P,
const prwatch_t *wp);
The
Pdelwapt() function removes the
watchpoint specified by
wp from the process
represented by the handle
P. The watchpoint
should have been installed with either
Psetwapt(3PROC) or the underlying /proc file
system
PCWATCH operation.
The
Pdelwapt() function only works on running
processes, such as those created through
Pgrab(3PROC) and
Pcreate(3PROC). Attempting to remove a watchpoint
from process handles to core files, zombie processes, or ELF objects will
fail.
Upon successful completion, the
Pdelwapt()
function removes the watchpoint and returns
0.
Otherwise,
-1 is returned,
errno is set to indicate the error.
For a full list of possible errors see the
DIAGNOSTICS section in
proc(4).
The
Pdelwapt() function will fail with:
-
-
ENOENT- The handle P refers to a grabbed core
file, a zombie process, or an ELF object.
Uncommitted
See
LOCKING in
libproc(3LIB).
libproc(3LIB),
Pcreate(3PROC),
Pgrab(3PROC),
Pgrab_core(3PROC),
Pgrab_file(3PROC),
Psetwapt(3PROC),
proc(4)