PCLEARFAULT(3PROC) Process Control Library Functions PCLEARFAULT(3PROC)

NAME

Pclearfault, Lclearfault - clear process and thread faults

LIBRARY

Process Control Library (libproc, -lproc)

SYNOPSIS

#include <libproc.h>

int
Pclearfault(struct ps_prochandle *P);

int
Lclearfault(struct ps_lwphandle *L);

DESCRIPTION

During normal operation a process may encounter a fault, due to a hardware
exception, identifying a problem with the running process. Hardware faults
include things like executing illegal instructions, encountering a
breakpoint, and arithmetic exceptions. Faults are discussed further in
proc(5).

The Pclearfault() function instructs the system to clear any fault pending
delivery to a thread in the process represented by the process handle P.
The pending fault will never be delivered to process represented by P.

The Lclearfault() function is identical to the Pclearfault() function,
except rather than operating on the representative thread of the process it
operates on the thread handle L.

The Pclearfault() and Lclearfault() functions only have meaning for active
processes. They will fail on process handles corresponding to zombie
processes, ELF objects, and cores.

RETURN VALUES

Upon successful completion, the Pclearfault() and Lclearfault() functions
clear pending faults and return 0. Otherwise, -1 is returned, errno is set
to indicate the error, and no faults are cleared.

ERRORS

For a full list of possible errors see the DIAGNOSTICS section in proc(5).

INTERFACE STABILITY

Uncommitted

MT-LEVEL
See LOCKING in libproc(3LIB).

SEE ALSO

libproc(3LIB), proc(5)

illumos May 11, 2016 illumos