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

NAME

Psync, Lsync - synchronize cached tracing flags and modifications

LIBRARY

Process Control Library (libproc, -lproc)

SYNOPSIS

#include <libproc.h>

void
Psync(struct ps_prochandle *P);

void
Lsync(struct ps_lwphandle *L);

DESCRIPTION

The Psync() function synchronizes modifications to the process handle P
back to the underlying active process. The Psync() function ensures
that any outstanding process holds, register modifications, signal
injections, and modifications to the various fault and system call
tracing flags are taken care of.

Normally this function is not required as other library routines take
care of synchronizing this state out to the process when it is
required. If the underlying /proc file system routines are used
outside of the library, calling this function may be required.

The Psync() function is only meaningful for active processes. It will
do nothing on process handles that refer to core files, zombie
processes, and ELF objects.

The Lsync() function is equivalent to the Psync() function, except
rather than operating on the entire process and its representative
thread, it instead operates on the thread handle L.

INTERFACE STABILITY

Uncommitted

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

SEE ALSO

libproc(3LIB), Pfault(3PROC), Pputareg(3PROC), Psetfault(3PROC),
Psetsignal(3PROC), Psetsysentry(3PROC), Psetsysexit(3PROC),
Psignal(3PROC), Psysentry(3PROC), Psysexit(3PROC), proc(5)

illumos May 11, 2016 illumos